Schneider Electric IndustrieS NX2TO7 Control Units User Manual Micrologic X Control Unit User Guide 05 2016

Schneider Electric Industrie SAS Control Units Micrologic X Control Unit User Guide 05 2016

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Micrologic X

DOCA010 2EN-00 05/201 6

Micrologic X

Control Unit

User Guide

05/2016

2DOCA0102EN-00 05/2016

The information provided in this documentation contains general descriptions and/or technical character-

istics of the performance of the products contained herein. This documentation is not intended as a

substitute for and is not to be used for determining suitability or reliability of these products for specific user

applications. It is the duty of any such user or integrator to perform the appropriate and complete risk

analysis, evaluation and testing of the products with respect to the relevant specific application or use

thereof. Neither Schneider Electric nor any of its affiliates or subsidiaries shall be responsible or liable for

misuse of the information contained herein. If you have any suggestions for improvements or amendments

or have found errors in this publication, please notify us.

No part of this document may be reproduced in any form or by any means, electronic or mechanical,

including photocopying, without express written permission of Schneider Electric.

All pertinent state, regional, and local safety regulations must be observed when installing and using this

product. For reasons of safety and to help ensure compliance with documented system data, only the

manufacturer should perform repairs to components.

When devices are used for applications with technical safety requirements, the relevant instructions must

be followed.

Failure to use Schneider Electric software or approved software with our hardware products may result in

injury, harm, or improper operating results.

Failure to observe this information can result in injury or equipment damage.

DOCA0102EN-00 05/2016 3

Table of Contents

Safety Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

About the Book . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Chapter 1 Introduction to the Micrologic X Control Unit . . . . . . . . . . . . . . . . . . . . . . . 9

Presentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

The Range of Micrologic X Control Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Micrologic X Control Unit Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Masterpact MTZ Mobile App . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Ecoreach Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Optional Digital Modules for Micrologic X Control Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Micrologic X Control Units in Digital Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Go2SE Landing Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

GoDigital . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Installing and Removing Optional Digital Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Micrologic X Date and Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Micrologic X Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Chapter 2 Using Micrologic X Control Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

2.1 Presentation of HMIs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Micrologic X HMIs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Functions per HMI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

2.2 Using the Micrologic X HMI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Micrologic X HMI Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

HMI Display Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Quick View Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Tree Navigation Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Measures Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Alarms & History Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Maintenance Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Configuration Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Protection Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Pop-up Event Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Chapter 3 Protection Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

3.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Electrical Distribution Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

3.2 Standard Protection Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

Long-Time Overcurrent Protection (L or ANSI Code 49RMS). . . . . . . . . . . . . . . . . . . . . . . . 65

Short-Time Overcurrent Protection (S or ANSI Code 51) . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Instantaneous Overcurrent Protection (I or ANSI Code 50) . . . . . . . . . . . . . . . . . . . . . . . . . 70

Ground-Fault Protection (G or ANSI Code 50G/51G) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Earth-Leakage Protection (ANSI Code 50G/51G). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

Neutral Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

Dual Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

Zone Selective Interlocking (ZSI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

3.3 Setting Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

Protection Setting Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

Setting the Long-Time Overcurrent Protection (L or ANSI Code 49RMS) . . . . . . . . . . . . . . 87

Setting the Short-Time Overcurrent Protection (S or ANSI Code 51) . . . . . . . . . . . . . . . . . . 90

Setting the Instantaneous Overcurrent Protection (I or ANSI Code 50) . . . . . . . . . . . . . . . . 92

Selectivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

4DOCA0102EN-00 05/2016

Chapter 4 Metering Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

4.1 Standard Metering Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .96

Measurement Accuracy in Accordance with IEC 61557-12 . . . . . . . . . . . . . . . . . . . . . . . . . . 97

Measurement Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

Measurement Availability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .107

Network Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

Real-Time Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

Power Metering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

Power Calculation Algorithm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120

Energy Metering. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121

Harmonic Currents and Voltages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123

Power Quality Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124

Power Factor PF and cos ϕ Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126

4.2 Optional Metering Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129

Energy per Phase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129

Chapter 5 Diagnostic and Maintenance Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131

5.1 Maintenance Assistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132

Maintenance Schedule. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .133

Circuit Breaker Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .134

5.2 Standard Diagnostic Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135

Health Monitoring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136

Circuit Breaker Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137

Monitoring the Tripping Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138

Monitoring the Opening/Closing Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139

Monitoring the Contact State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140

Monitoring the Internal Functioning of the Micrologic X control unit. . . . . . . . . . . . . . . . . . . . 141

Monitoring the ULP Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142

Monitoring the Circuit Breaker Service Life . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143

5.3 Optional Diagnostic Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .144

Power Restoration Assistant Digital Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145

Masterpact Operation Assistant Digital Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146

Waveform Capture on Trip Event Digital Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147

Chapter 6 Operation Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149

Control Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150

Closing Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151

Opening Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152

Chapter 7 Communication Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153

Bluetooth Low Energy Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154

NFC Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .156

IEEE 802.15.4 Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157

USB Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159

Cybersecurity Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160

Chapter 8 Event Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163

Event Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164

Event Status Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165

Event Notifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169

Event Status Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170

Event History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171

Event List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173

Appendices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177

Appendix A Title of Chapter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179

DOCA0102EN-00 05/2016 5

Safety Information

Important Information

NOTICE

Read these instructions carefully, and look at the equipment to become familiar with the device before

trying to install, operate, service, or maintain it. The following special messages may appear throughout

this documentation or on the equipment to warn of potential hazards or to call attention to information that

clarifies or simplifies a procedure.

PLEASE NOTE

Electrical equipment should be installed, operated, serviced, and maintained only by qualified personnel.

No responsibility is assumed by Schneider Electric for any consequences arising out of the use of this

material.

A qualified person is one who has skills and knowledge related to the construction and operation of

electrical equipment and its installation, and has received safety training to recognize and avoid the

hazards involved.

6DOCA0102EN-00 05/2016

DOCA0102EN-00 05/2016 7

About the Book

At a Glance

Document Scope

The aim of this guide is to provide users, installers, and maintenance personnel with the technical

information needed to operate Micrologic™ X control units in Masterpact™ MTZ circuit breakers.

Validity Note

This guide applies to the following control units:

Micrologic 2.0 X

Micrologic 5.0 X

Micrologic 6.0 X

Micrologic 7.0 X

Related Documents

You can download these technical publications and other technical information from our website at

http://download.schneider-electric.com

Trademark Notice

All trademarks are owned by Schneider Electric Industries SAS or its affiliated companies.

Licensing Information for Cryptographic Software

This product includes cryptographic software written by Eric Young (eay@cryptsoft.com).

Title of Documentation Reference Number

Masterpact MTZ1 Circuit Breakers and Switch-Disconnectors - User

Guide

DOCA0100EN

DOCA0100ES

DOCA0100FR

DOCA0100ZH

Masterpact MTZ2/MTZ3 Circuit Breakers and Switch-Disconnectors

- User Guide

DOCA0101EN

DOCA0101ES

DOCA0101FR

DOCA0101ZH

Masterpact MTZ - Modbus Communication Guide DOCA0105EN

DOCA0105ES

DOCA0105FR

DOCA0105ZH

Masterpact MTZ Cyber Security Guide DOCA0122EN

IO Input/Output Application Module for One Circuit Breaker User

Guide

DOCA0055EN

DOCA0055FR

DOCA0055ES

DOCA0055ZH

IFE Ethernet Interface User Guide DOCA0084EN

DOCA0084FR

DOCA0084ES

DOCA0084ZH

EIFE Embedded Ethernet Interface User Guide DOCA0106EN

8DOCA0102EN-00 05/2016

THIS SOFTWARE IS PROVIDED BY ERIC YOUNG “AS IS” AND ANY EXPRESS OR IMPLIED

WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANT-

ABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE

AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR

BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER

IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING

IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

SUCH DAMAGE.

This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit

(http://www.openssl.org/).

THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT “AS IS” AND ANY EXPRESSED OR

IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF

MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT

SHALL THE OpenSSL PROJECT OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,

INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF

LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR

OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF

THE POSSIBILITY OF SUCH DAMAGE.

Licensing Information for USB Communication

This product includes software developed by Texas Instruments Incorporated (http://www.ti.com/).

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND

ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR

ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON

ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING

NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,

EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

DOCA0102EN-00 05/2016 9

Micrologic X

Introducti on to the Micr ologic X C ontrol Unit

DOCA0 102EN-00 05/2016

Introduction to the Microlog ic X Control Un it

Chapter 1

Introduction to the Micrologic X Control Unit

What Is in This Chapter?

This chapter contains the following topics:

Topic Page

Presentation 10

The Range of Micrologic X Control Units 11

Micrologic X Control Unit Description 12

Masterpact MTZ Mobile App 15

Ecoreach Software 16

Optional Digital Modules for Micrologic X Control Units 17

Micrologic X Control Units in Digital Systems 18

Go2SE Landing Page 19

GoDigital 20

Installing and Removing Optional Digital Modules 21

Micrologic X Date and Time 22

Micrologic X Power Supply 23

Introduction to the Micrologic X Control Unit

10 DOCA0102EN-00 05/2016

Presentation

Micrologic X Control Unit Overview

Masterpact MTZ circuit breakers with Micrologic X control units provide functions of protection, metering,

diagnostics, communication and remote operation. The control unit can be customized with optional Digital

Modules.

Micrologic X control units allow operation and monitoring of Masterpact MTZ circuit breakers locally or

remotely.

Protection

In addition to the standard range of protection (long-time overcurrent (L), short-time overcurrent (S),

instantaneous overcurrent (I), ground-fault (G), and earth-leakage (V)), additional features include:

Dual settings

Fine settings

Zone selective interlocking

Fast tripping

Metering

Micrologic X control units measure the following parameters:

Current

Voltage

Frequency

Power

Energy

Power factor

Minimum, maximum, and average values of a wide range of parameters are available.

Diagnostics and Maintenance

Diagnostic features help to:

Start the circuit breaker again after a trip as quickly as possible.

Limit the risk of power interruptions by monitoring the health of the Micrologic X control unit. Pop-up

messages alert the user in the case of necessary preventive maintenance.

Communication

Micrologic X control units support the following means of communication:

Wireless

Bluetooth

NFC

Ethernet

Through IFE webpages

Through embedded EIFE, with associated webpages (drawout devices only)

Local through connection to mini USB port

Wireless communication allows you to access status and measurements readings directly on a

smartphone using the Masterpact MTZ mobile App available to download and install.

Optional Digital Modules

The following Digital Modules can be downloaded from the Schneider Electric website to extend the

features available:

Energy per phase

Power restoration assistant

Masterpact operation assistant

Waveform capture on trip event

Introduction to the Micrologic X Control Unit

DOCA0102EN-00 05/2016 11

The Range of Micrologic X Control Units

Micrologic X Control Units

The range of Micrologic X control units offers different standard functions, described below.

Optional Digital Modules can be added to extend the functions available

(see page 17)

Presentation of Standard Functions

The following table indicates the standard features available on Masterpact MTZ with Micrologic X control

units:

Micrologic 2.0 X Micrologic 5.0 X Micrologic 6.0 X Micrologic 7.0 X

Long-time overcurrent protection (L) XXXX

Short-time overcurrent protection (S) – X X X

Instantaneous overcurrent protection (I) XXXX

Ground-fault protection (G) – – X –

Earth-leakage protection (V) –––X

Neutral protection XXXX

Dual settings XXXX

Overcurrent and trip cause indicators XXXX

Zone selective interlocking – X X X

Trip history XXXX

Setting change traceability XXXX

Embedded power meter XXXX

Embedded diagnostics XXXX

Introduction to the Micrologic X Control Unit

12 DOCA0102EN-00 05/2016

Micrologic X Control Unit Description

Introduction

The Micrologic X control unit includes:

Micrologic X health status LEDs

A local HMI comprising a graphic display with colored backlight, contextual buttons, and dedicated

buttons

LEDs to monitor circuit breaker operations, including the source of trips and alarms

Control Unit Description

Micrologic X Health Status LEDs

Local HMI Display Screen with Contextual Buttons and Dedicated Buttons

The local HMI screen and buttons

(see page 32)

are used to:

Navigate the menu structure.

Display monitored values.

Access and edit configuration settings.

A Ready LED

B Service LED

C ERMS LED (Reserved for future use)

D Graphic display screen

E Escape button ESC

F Three contextual buttons

G Home button

H NFC wireless communication zone

I Bluetooth LED

J Bluetooth activation button

K Test button for ground-fault and earth-leakage

protection (Micrologic 6.0 X and 7.0 X)

L Test/Reset button for trip cause LEDs and alarms

M Mini USB port under rubber cover

N Overload and trip cause LEDs

O Cover for battery

P VPS voltage power supply module (optional)

Q VPS LED to indicate that the VPS is supplying the

control unit

R QR code to product information

S Control unit identification number

T Control unit type

U Sensor plug with the rated current of the circuit

breaker

Test Reset

In 1600 A

DISCONNECT BEFORE

DIELECTRIC TEST

6.0 X

ID:

1989421527520002LV847604

In 1600 A

TRIP CAUSE

Op.

Isd

I n

Home

Quickview

Measures

Alarms & H...

Maintenan...

U T S R

LED Description

Ready The Ready LED flashes when the control unit is ready to provide protection.

The service LED alerts the user to the overall health of the circuit breaker. There are three states:

Unlit LED: the circuit breaker is in good working order.

Orange LED: Non-urgent alert message.

Red LED: Alert message that requires immediate intervention.

ERMS The ERMS (Energy Reduction Maintenance Setting) LED is reserved for future use.

Introduction to the Micrologic X Control Unit

DOCA0102EN-00 05/2016 13

NFC Communication Zone

The NFC communication zone is used to establish an NFC connection

(seepage156)

between a

smartphone that has the Masterpact MTZ mobile App and the Micrologic X control unit. When the

connection is established, the circuit breaker operating data is automatically uploaded to the smartphone.

Bluetooth Activation Button and LED

The Bluetooth activation button is used to establish a Bluetooth Low Energy connection

(see page 154)

between a smartphone that has the Masterpact MTZ mobile App and the Micrologic X control unit. When

the connection is established, the circuit breaker can be monitored and controlled from the smartphone.

When the Bluetooth LED is flashing, it indicates that a Bluetooth connection is in progress.

Test Button

The test button is used to test the ground-fault protection for Micrologic 6.0 X

(see page 73)

and the earth-

leakage protection for Micrologic 7.0 X

(see page 74)

Overload and Trip Cause LEDs

The assignment of the four trip cause LEDs depends on the type of Micrologic X control unit.

NOTE: If the Micrologic X control unit is not powered the trip cause LEDs go off after 4 hours. Press the

Test/Reset button to light them again.

Test/Reset Button

The Test/Reset button performs the following functions:

Battery test. Press theTest/Reset button. The four trip cause LEDs light up for 1 second. If the LEDs do

not light, replace the battery.

Reset trip cause LED. When a trip cause LED is lit, press and hold the Test/Reset button for 3 seconds

to reset and switch off the trip cause LED and the service LED.

Reset the control unit (except standard protection functions). Press and hold the Test/Reset button for

15 seconds.

LEDs Description

Micrologic 2.0 X, 5.0 X, 6.0 X, 7.0 X: Overload pre-alarm, the load exceeds 90% of

the Ir setting of the long-time protection

Micrologic 2.0 X, 5.0 X, 6.0 X, 7.0 X: Overload alarm, the load exceeds 105% of the

Ir setting of the long-time protection

Micrologic 2.0 X, 5.0 X, 6.0 X, 7.0 X: trip due to the long-time protection.

Micrologic 2.0 X: trip due to the short-time protection.

Micrologic 5.0 X, 6.0 X, 7.0 X: trip due to the short-time protection or instantaneous

protection.

Micrologic 2.0 X, 5.0 X: Not used.

Micrologic 6.0 X: trip due to the ground-fault protection.

Micrologic 7.0 X: trip due to the earth-leakage protection.

Micrologic 2.0 X, 5.0 X, 6.0 X, 7.0 X: Trip due to other protection (optional

protections).

TRIP CAUSE

Op.

Isd

I n

TRIP CAUSE

Op.

Isd

I n

TRIP CAUSE

Op.

Isd

I n

TRIP CAUSE

Op.

Isd

I n

TRIP CAUSE

Op.

Isd

I n

TRIP CAUSE

Op.

Isd

I n

Introduction to the Micrologic X Control Unit

14 DOCA0102EN-00 05/2016

NOTE: After a battery test, any active trip cause LED is displayed again.

Mini USB Port

Remove the rubber cover of the mini USB port to connect the following devices:

A Mobile Power Pack to supply power to the Micrologic X control unit

(see page 23)

A PC equipped with Ecoreach software

(see page 159)

NOTE: It is not possible to connect a USB key to the Micrologic X control unit.

QR Code

When the QR code on the front face of a Micrologic X control unit is flashed by using a smartphone running

a QR code reader, a landing page is displayed.

The landing page displays some basic information about the device in a header, and a list of menus:

Characteristics

Download documents related to Masterpact and Micrologic X devices

Customer Care Center

Safe Repository

Masterpact MTZ mobile App

GoDigital

Control Unit Identification Number

The identification number is made up as follows:

The serial number of the Micrologic X control unit in the format FFFFFFYYWWDXXXXX

The sales reference of the control unit in the format LV8xxxxx

Use the identification number to register your Micrologic X control unit.

Registering your Micrologic X control unit ensures that your records are up to date and enables traceability.

Control Unit Type

This code denotes the type of Micrologic control unit:

The number (for example, 2.0) defines the types of protection provided by the control unit.

The letter (X) denotes the range.

Battery

The battery powers the trip cause LEDs in the absence of other power supply

(see page 25)

VPS

The VPS power supply module provides an internal voltage supply to the Micrologic X control unit

(see page 23)

The VPS module is optional for Micrologic 2.0 X, 5.0 X and 6.0 X.

The VPS module is supplied as standard for Micrologic 7.0 X.

Sensor Plug

The protection ranges depend on the rated current In, defined by the sensor plug inserted into the

Micrologic X control unit

(see page 60)

Introduction to the Micrologic X Control Unit

DOCA0102EN-00 05/2016 15

Masterpact MTZ Mobile App

Presentation

The Masterpact MTZ mobile App enables a smartphone to be used for rapid setting changes and a follow-

up of Masterpact MTZ circuit breakers with Micrologic X control units. It also enables information to be

shared, (for example, by email).

Downloading the Application

The Masterpact MTZ mobile App can be downloaded in the following ways:

Flashing the QR code on the front face of the Micrologic X control unit gives access to a landing page

where the mobile application is proposed

(see page 19)

From Google Play Store for Android smartphones

From App Store for iOS smartphones

The Masterpact MTZ mobile App is optimized for a 12.7 cm (5 inch) display screen.

Communicating with a Micrologic X Control Unit

Two means of communication are available to connect the Masterpact MTZ mobile App to a Micrologic X

control unit:

Bluetooth:

Display data

Configure general and protection settings

NFC (also available when control unit is not powered) (only available for Android smartphones):

Display selection of data

Establishing a Connection with a Micrologic X Control Unit

For the connection procedure refer to the specific topic:

Bluetooth connection procedure

(see page 154)

NFC connection procedure

(see page 156)

Using a Bluetooth Connection

Connecting to Masterpact MTZ mobile App with a Bluetooth connection gives access to and allows sharing

of the following information types:

Quick View: gives an overview of current levels per phase, the health of the circuit breaker, and recent

event history

Metering: displays values of current, rms voltages, network and energy in real-time

Protection Setting: displays settings currently selected and allows modification of settings

Status and Control: displays status of the circuit breaker and allows opening and closing operations to

be carried out.

Using an NFC Connection

Connecting to Masterpact MTZ mobile App with an NFC connection is possible when the Micrologic X

control unit is not powered. It gives access to the following information:

Information about the Micrologic X control unit

Last trip context: trip type; date and time of last trip; current values before trip

Protection settings (display only)

Access to Digital Modules

(see page 17)

for assistance after a trip

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16 DOCA0102EN-00 05/2016

Ecoreach Software

Presentation

Ecoreach is an electrical asset management software package intended to assist with the designing,

testing, commissioning and maintenance phases of a project. It provides a simple way to configure, test

and commission electrical smart devices.

Ecoreach automatically discovers smart devices and allows them to be added for easy configuration.

Comprehensive reports can be generated as part of Factory Acceptance Test and Site Acceptance Test

reports to replace heavy manual work. Additionally, when the panels are under operation, any change of

settings made can be easily identified to provide system consistency during the operation and

maintenance phases.

Ecoreach software enables the configuration of Masterpact devices:

Micrologic X control unit

Communication interface modules: IFE interface and EIFE interface

ULP IO modules

M2C output module

For more information, refer to the

Ecoreach Online Help

The Ecoreach software is available at

www.schneider-electric.com

Key Features

Ecoreach performs the following actions for the supported devices and modules:

Create projects by device discovery

Perform communication wiring test on entire project, generate and print test reports

Configuration or settings download and upload for multiple devices

Install digital modules

Compare settings between project (original settings) and device (current settings)

Generate comprehensive project reports

Check system-level firmware status and upgrade devices

Provide safe repository of projects in Ecoreach Cloud

Read information (alarms, measurements, parameters) and display diagnosis information

Export logbook of events and waveform capture

Introduction to the Micrologic X Control Unit

DOCA0102EN-00 05/2016 17

Optional Digital Modules for Micrologic X Control Units

Presentation

Digital Modules are optional modules that extend the features available across the range of Micrologic X

control units.

They are available to purchase:

When the Micrologic X control unit is initially ordered

At any time after installation of the circuit breaker and Micrologic X control unit, by accessing the

GoDigital marketplace

Digital Modules can be purchased, downloaded and installed on a Micrologic X control unit without

interrupting the services of the functions provided by the control unit.

Take the following steps to purchase and install optional Digital Modules:

Access GoDigital

(see page 20)

Choose Digital Modules for your control unit and purchase them

Open the email and click the link to download the Digital Module delivery package to your PC

Connect Ecoreach software to your Micrologic X control unit to install your Digital Module

(see page 21)

Digital Modules

The following table presents the Digital Modules available for installation:

Digital Module Description Function

Energy per phase

(see page 129)

Analysis of energy consumption per phase. Metering

Power restoration assistant

(see page 145)

Assistance in restoring power quickly after a trip. Diagnostics

Masterpact operation

assistant

(see page 146)

Assistance in closing the circuit breaker after a trip. Diagnostics

Waveform capture on trip

event

(see page 147)

Displays interrupted phase and neutral currents

after a trip.

Diagnostics

Introduction to the Micrologic X Control Unit

18 DOCA0102EN-00 05/2016

Micrologic X Control Units in Digital Systems

Presentation

Masterpact circuit breakers with Micrologic X control unit, in conjunction with Enerlin’X, provide simple and

reliable access to data from a smart panel or PC.

The following communication channels are offered:

Ethernet through IFE or EIFE

Masterpact MTZ mobile App through Bluetooth or NFC

Ecoreach software through USB port

Internet through Com’X through Ethernet

Micrologic X Control Units in Digital Systems

The following diagram shows how Micrologic X control units communicate within a digital system:

Ethernet

USB

Wireless communication

Internet

POWER

Com’X 200

POWER

100-230V

Introduction to the Micrologic X Control Unit

DOCA0102EN-00 05/2016 19

Go2SE Landing Page

Presentation

When the QR code on the front face of a Micrologic X control unit is flashed by using a smartphone running

a QR code reader, a landing page is displayed. The landing page displays some basic information about

the device in a header and a list of menus.

Header

The header displays the following information:

The product reference of the Micrologic X control unit

The type of control unit

The range of associated circuit breaker

The unique serial number of the Micrologic X control unit

Landing Page Menus

Characteristics

Selecting this menu gives access to a product datasheet which gives detailed information about the

product.

Download Documents

Selecting this menu gives access to the following documents:



Micrologic X Control Unit - User Guide



Masterpact MTZ1 Circuit Breakers and Switch-Disconnectors - User Guide



Masterpact MTZ2/MTZ3 Circuit Breakers and Switch-Disconnectors - User Guide

Download Customer Care Application

The customer care application for Android smartphones can be downloaded by following the link.

Safe Repository Access

Download Masterpact MTZ mobile App

Selecting this menu gives access to the smartphone application or the possibility to purchase/install it.

GoDigital

Selecting this menu gives direct access to the GoDigital marketplace webpage

(see page 20)

The landing page displays the following list of menus:

Characteristics

Download documents related to Masterpact and

Micrologic X devices

Customer Care Center

Safe Repository

Masterpact MTZ mobile App

GoDigital

Introduction to the Micrologic X Control Unit

20 DOCA0102EN-00 05/2016

GoDigital

GoDigital Marketplace

GoDigital is a marketplace to enable users to purchase and download Digital Modules to extend the

performance of Micrologic X control units.

Prerequisites

The following list indicates the necessary prerequisites for purchasing optional Digital Modules:

Unique Schneider Electric account with user name and password

Validated CRM internal user account to enable purchase of Digital Modules

Creation of a buyer account in GoDigital

Connection to a single Micrologic X control unit to read its unique serial number (see below)

Accessing GoDigital

You can access GoDigital using one of the following means:

From Ecoreach software either with a PC connected to a Micrologic X control unit or by selecting one

Micrologic X control unit (or project) from the software. Ecoreach reads the unique serial number of the

Micrologic X control unit, proposes available Digital Modules and gives direct access to the GoDigital

site.

Through the Masterpact MTZ mobile App, after connection to one Micrologic X control unit through

Bluetooth or NFC. A direct link gives access to the GoDigital webpage for mobile devices.

By flashing the QR code on the front face of the Micrologic X control unit from a smartphone. A landing

page opens and a direct link to GoDigital is proposed.

Directly to the GoDigital website (

http://godigital.schneider-electric.com/

). This access can only be used

to purchase Digital Modules for a second order for the same Micrologic X control unit using the serial

number listed in the My Asset tab.

Purchasing in GoDigital

After accessing the GoDigital website through one of the access points described in the previous

paragraph, follow this procedure to purchase Digital Modules:

Useful Information

The following points provide additional information on the use of GoDigital:

In Ecoreach software, Digital Modules can be selected from a list available for the unique serial number

of the selected Micrologic X control unit. Clicking on Buy gives direct access to the list of Digital Modules

in the GoDigital marketplace. The Digital Modules selected in Ecoreach are already checked.

To buy Digital Modules for more than one Micrologic X control unit, save the cart, select the serial

number of another control unit, and repeat step 2 in the procedure.

Step Action

1 Log in to the GoDigital website

NOTE: If user is unknown, a link to create a new account is proposed. If the user is recognized but no

buyer account exists in GoDigital, a link to create this account is proposed.

2 Choose Digital Modules required and add to cart. The cart can be saved for future validation and

purchase.

3 Submit the cart. The purchase is validated and the invoice, order confirmation and a link to the delivery

package are sent by email.

4 Click the link in the email to download the delivery package to a PC.

Introduction to the Micrologic X Control Unit

DOCA0102EN-00 05/2016 21

Installing and Removing Optional Digital Modules

Presentation

Once a Digital Module has been purchased in the GoDigital marketplace it can be installed in the

associated Micrologic X control unit using Ecoreach software.

Prerequisites

The following conditions must be met to install a Digital Module:

The Digital Module purchased in the GoDigital marketplace

The Digital Module delivery package downloaded onto a PC

The PC with Ecoreach software connected by a USB cable to the Micrologic X control unit to recognize

its serial number and ID

Installing a Digital Module

Follow this procedure to install purchased Digital Modules on a Micrologic X control unit:

Removing a Digital Module

Follow this procedure to remove a Digital Module from a Micrologic X control unit:

Predefined Events

The following events are generated when a Digital Module is installed or removed:

Step Action

1 Connect a PC running Ecoreach software directly to the mini USB port on the front of the Micrologic X

control unit.

2 Click the Connect device button to establish a connection between Ecoreach and the Micrologic X

control unit. Ecoreach displays the Micrologic X control unit serial number on the screen.

3 Select Digital Modules.

4 Check that the delivery package for the Digital Module to be installed is present on the PC being used.

5 Choose Digital Modules to be installed by clicking Install.

NOTE: Only modules that have been purchased previously can be installed directly by clicking Install.

6 When installation is completed and before unplugging the PC, disconnect Ecoreach from the device by

clicking the Disconnect button.

Step Action

1 Connect a PC running Ecoreach software directly to the mini USB port on the front of the Micrologic X

control unit.

2 Click the Connect device button to establish a connection between Ecoreach and the Micrologic X

control unit. Ecoreach displays the Micrologic X control unit serial number on the screen.

3 Select Digital Modules.

4 Choose Digital Modules to be removed by clicking Remove.

5 When removal is completed and before unplugging the PC, disconnect Ecoreach from the device by

clicking the Disconnect button.

User message History Severity

License installed Configuration Low

License uninstalled Configuration Low

Introduction to the Micrologic X Control Unit

22 DOCA0102EN-00 05/2016

Micrologic X Date and Time

Presentation

Micrologic X date and time are used for time stamping events to provide a temporal order.

Setting the Date and Time Manually

Micrologic X date and time can be set manually:

On Micrologic X display screen at Home → Configuration → General → Date & Time. The first

component of the date is day (dd) and the second component is month (mm).

With Ecoreach software

With Masterpact MTZ mobile App

Synchronizing the Date and Time Automatically

Micrologic X date and time can be automatically synchronized with the date and time of a smartphone,

using the Masterpact MTZ mobile App.

Micrologic X date and time can be automatically updated with the IFE or EIFE Ethernet interface with the

following conditions:

Ethernet interface is configured in SNTP mode

Ethernet interface receives an update date and time request (from Ecoreach software or a web browser

connected to the Ethernet interface webpage or third-party software)

NOTE: If the Micrologic X control unit is connected to an Ethernet interface configured in SNTP mode,

manual update of the Micrologic X date and time is possible but is immediately replaced by the date and

time of the IFE Ethernet interface.

Predefined Events

Setting the date and time generates the following low-severity event, which is logged in the Configuration

history: Clock setup

Introduction to the Micrologic X Control Unit

DOCA0102EN-00 05/2016 23

Micrologic X Power Supply

Internal and External Power Supplies

The Micrologic X control unit is powered by the current through internal current transformers (CT). Different

optional power supplies can also be used. The following list indicates the possible permanent power

supplies:

Internal voltage power supply (VPS) module, up to 600 Vac

External 24 Vdc power supply module with or without battery module (battery life 4 hours)

The following temporary power supplies can be used to power the control unit when other supplies are

unavailable. They provide access to all functions of the Micrologic X control unit:

PC through USB connection

External Mobile Power Pack through USB connection

During operation, when the load current is higher than 20% of the rated current, the internal current supply

ensures full functioning of the control unit and all protection functions, including long-time overcurrent

protection, short-time overcurrent protection, instantaneous overcurrent protection, and ground-fault

protection.

When the circuit breaker is not powered, an alternative power supply is necessary. More details are given

in the following presentation of each power supply.

An external 24 Vdc power supply is necessary to power IFE and EIFE Ethernet interfaces, and IO modules

(ULP).

Voltage Power Supply (VPS) Module

The VPS module is optional for Micrologic 2.0 X, 5.0 X, and 6.0 X. It is installed as standard on

Micrologic 7.0 X to maintain earth-leakage protection.

A green LED on the front face indicates that the VPS module is powered and a 24 Vdc output is supplied.

Characteristics of the VPS module:

The internal voltage power supply (VPS) module for Micrologic X control unit powers the

main functions of the control unit, including the display screen, keypad, and wireless

communication, in the following circumstances:

When the circuit breaker is in low load conditions (< 20% In)

When there is no load but the circuit breaker is supplied with power, for example, there

is a tri-phase or bi-phase power voltage available downstream of the circuit breaker

The VPS module is installed in the lower part of the Micrologic X control unit.

Power supply Values

Input Vac 50/60 Hz Three phase 208–600 V +10 / –30%

Introduction to the Micrologic X Control Unit

24 DOCA0102EN-00 05/2016

External 24 Vdc Power Supply (ABL8) Module

External 24 Vdc Power Supply (AD) Module

Characteristics of the AD module:

Battery Module

Characteristics of the battery module:

PC Power Supply

A PC provides a temporary power supply which can be used when the circuit breaker is not powered, and

during periods of setting, commissioning, testing, and maintenance.

It is connected by using a USB cable connected to the mini USB port on the Micrologic X control unit.

The 24 Vdc power supply module (with or without battery module) maintains the operation

of all functions of the Micrologic X control unit when the circuit breaker is open and not

energized.

The 24 Vdc power supply module maintains the functions of the Micrologic X control unit in

low load conditions (load below 20%).

The 24 Vdc power supply module provides a power supply during periods of setting,

commissioning, testing, and maintenance.

The 24 Vdc power supply module is mandatory to supply power to the IFE/EIFE Ethernet

interfaces and IO modules, when these are present.

Characteristic Values

Power supply 110/130, 200/240, 380/415 Vac, 50/60 Hz (+10%, –15%)

24/30, 48/60, 100/125 Vdc (+20% –20%)

Output voltage 24/30, 48/60, 100/125 Vdc (+20% -20%)

Ripple < 1%

Dielectric withstand 3.5 kV rms between input/output, for 1 minute

Overvoltage category Defined by IEC 60947-1 cat. 4

The battery module maintains the operation of the Micrologic X display screen and keypad if the

power supply is interrupted. It also enables wireless communication. It is installed in series

between the control unit and the 24 Vdc power supply module.

The battery module is a lithium type battery, with a service life of approximately ten years. If there

is no power supply to the 24 Vdc power supply module, the battery module provides power to the

control unit for four hours.

Characteristic Values

Battery run-time 4 hours

Mounting Vertical backplate or symmetrical rail

Introduction to the Micrologic X Control Unit

DOCA0102EN-00 05/2016 25

Mobile Power Pack

Check the charge level of the Power Pack by pressing the test button for one second. The indicator on the

Power Pack lights up to indicate the remaining charge.

Internal Battery

When no other power supply is supplying the Micrologic X control unit, the internal battery powers:

The trip cause LEDs

The red service LED

The Micrologic internal clock (date and time)

The internal battery of the Micrologic X control unit can be replaced on site when discharged.

The Mobile Power Pack is an external battery that enables power to be

supplied temporarily to the Micrologic X control unit.

The Mobile Power Pack enables use of the Micrologic X display screen and

keypad for basic setting and displaying when the power supply to the

Micrologic X control unit is interrupted.

The external Mobile Power Pack can be connected by using a USB cable

connected to the mini USB port on the Micrologic X control unit.

5Vc2.4A 5Vc1.5A 5Vc1A

Introduction to the Micrologic X Control Unit

26 DOCA0102EN-00 05/2016

DOCA0102EN-00 05/2016 27

Micrologic X

Using Micr ologic X C ontrol Units

DOCA0 102EN-00 05/2016

Using Micrologic X Control Units

Chapter 2

Using Micrologic X Control Units

What Is in This Chapter?

This chapter contains the following sections:

Section Topic Page

2.1 Presentation of HMIs 28

2.2 Using the Micrologic X HMI 31

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28 DOCA0102EN-00 05/2016

Pre senta tion o f HMIs

Section 2.1

Presentation of HMIs

What Is in This Section?

This section contains the following topics:

Topic Page

Micrologic X HMIs 29

Functions per HMI 30

Using Micrologic X Control Units

DOCA0102EN-00 05/2016 29

Micrologic X HMIs

Introduction

HMI from the following products can be used to communicate with the Micrologic X control unit:

Micrologic X display screen

Masterpact MTZ mobile App (Wireless NFC or Bluetooth)

Ecoreach software (USB connection and remote LAN connection))

FDM128

Webpages on IFE/EIFE server

Using Micrologic X Control Units

30 DOCA0102EN-00 05/2016

Functions per HMI

Introduction

List of functions available according to the HMI:

All features on Ecoreach software

A wide selection of features on Masterpact MTZ mobile App

Essential features on the Micrologic X display screen

FDM128

Webpages on IFE/EIFE server

Using Micrologic X Control Units

DOCA0102EN-00 05/2016 31

Using the M icrologic X H MI

Section 2.2

Using the Micrologic X HMI

What Is in This Section?

This section contains the following topics:

Topic Page

Micrologic X HMI Description 32

HMI Display Modes 34

Quick View Mode 35

Tree Navigation Mode 38

Measures Menu 45

Alarms & History Menu 50

Maintenance Menu 51

Configuration Menu 52

Protection Menu 54

Pop-up Event Messages 57

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32 DOCA0102EN-00 05/2016

Micrologic X HMI Description

Introduction

The human machine interface (HMI) of the Micrologic X control unit includes:

A graphic display screen with colored backlight

Buttons to navigate through the menu structure, and access monitored parameters and configuration

settings

Display Screen and Buttons

The Micrologic X control unit includes the following display screen with contextual and dedicated buttons:

Button Functional Types

Use the buttons beneath the display screen to:

Navigate the menu structure

Display monitored values

Access and edit configuration settings

The control unit provides the following types of buttons:

Contextual buttons: each screen can have up to three contextual buttons. The function of each button

is determined by an icon located on the display screen directly above it.

Dedicated buttons, that perform the escape and home functions.

Contextual Buttons

A Screen name

B Functional screen content

C Scroll bar indicating the relative position of the

items in a list larger than the display screen

D Context-specific function icons

E Contextual buttons that perform the context-

specific function described by the icon

immediately above each button

F Escape button, used to return to the previous

screen and/or trigger a data saving confirmation

screen

G Home button, used to jump to the Home screen

and/or trigger a data saving confirmation screen

Icon displayed Description

Use the up and down buttons to move between:

Screen names within the same level of menu hierarchy

List items

The up and down arrows do not support looping back. At a terminus of a menu structure or item

list, either the up or down arrow is no longer displayed (depending on whether the terminus is

the beginning or end of the list). The up and down navigation behavior is the same for all menus

and lists.

OK Use the OK button:

To validate a selection

To navigate from the level currently displayed in the hierarchy to the selected sublevel

immediately below it. In this way, navigation is possible from:

The active menu to the immediate submenu

A submenu to a monitored item or configuration parameter

A monitored item to its monitored value

A configuration parameter to its configuration setting

To view details and acknowledge an event pop-up screen or error code

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DOCA0102EN-00 05/2016 33

Dedicated Buttons

Display Screen Backlight

The backlight color and intensity depends on the operating state of the control unit, as follows:

NOTE: When Quick View scrolling is off, the backlight changes from high intensity to low intensity when in

standby. High intensity resumes when a button is pressed.

Display Screen Language

To change the display screen language go to:

Home → Configuration → General → Language

Selections include:

Deutsch

English(US)

Español

Français

Italiano



Português

English(UK)

Use the Y (Yes) and N (No) buttons to acknowledge actions, for example, when a confirmation

screen is displayed.

–

Use the + and – buttons to increment or decrement a configuration setting, either numerical

values or predefined list items.

Icon displayed Description

ESC Use the ESC (escape) button to:

Navigate from the level currently displayed in the hierarchy to the level immediately above

Save a change to a configuration setting. A confirmation screen pops up and must be

acknowledged before returning to the menu on the level above.

Use the home button to:

Return to the Home screen

Save a change to a configuration setting. A confirmation screen pops up and must be

acknowledged before returning to the home screen.

Backlight color Control unit operating state

White1Quick View scrolling is enabled and running

Tree navigation mode is enabled for navigating among menus in display screens

Bluetooth wireless communication is enabled and the Bluetooth pairing message is

displayed.

Red A trip or a high severity event message is displayed.

Orange A medium severity alarm message is displayed, and no trip or high severity alarm is active.

1 The backlight of the Health screen in Quick View is

Red if a high severity event is active.

Orange if a medium severity event is active.

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HMI Display Modes

Presentation

The Micrologic X control unit HMI supports the following display modes:

Quick View mode to display a selection of data

Tree Navigation mode to access all data through a menu structure

NOTE: Both Quick View and Tree Navigation display modes are overridden by event messages

(see page 57)

Quick View Mode

Quick View is the default HMI display mode. It displays a selection of data screens.

When Quick View scrolling is enabled, the screens are displayed automatically one after the other with a

configurable time delay.

When Quick View scrolling is disabled the Quick View screens are viewable in the Quick View menu,

accessed from the Home menu.

Tree Navigation Mode

In Tree Navigation display mode, use the contextual buttons to navigate in the menu structure. Tree

Navigation display mode presents a single network of menus, with monitoring values and editable

configuration settings.

Tree navigation is always accessible from Quick View screens by pressing the Home button.

Refer to the Micrologic X local HMI description

(see page 32)

for information on how to use the HMI buttons

to:

Navigate the menu structure

Access and edit settings

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Quick View Mode

Quick View

Quick View presents a sequence of screens, depending on the type of Micrologic X control unit. Each

screen displays a snapshot of operating values for the control unit.

With automatic scrolling enabled, the screens are displayed in sequence with a configurable time delay.

With automatic scrolling disabled, the screens can be navigated manually.

Quick View scrolling is enabled as the factory setting.

When the Micrologic X control unit is switched on, Quick View scrolling begins after the configured time-

out if there are no active event messages

Configure the Quick View display mode by setting:

The display time for each screen in the Quick View scrolling sequence.

The time delay for automatically resuming scrolling, after scrolling has been interrupted.

If scrolling is off, the current bar graph is displayed after this time delay.

The following is an example of the Quick View screens for the Micrologic 6.0 X control unit, with dual

settings disabled.

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List of Quick View Screens

Depending on the type of the Micrologic X control unit, Quick View mode displays the following screens:

Configuring Quick View Mode

To configure Quick View settings, go to Home → Configuration → General → Quick View. The following

settings are available:

Scrolling: Set this to ON to enable automatic scrolling in Quick View. (When OFF is selected, the current

bar graph screen is displayed after the configured timeout.)

When Quick View scrolling is enabled the following settings are available:

Pageflow: The length of time each Quick View screen is displayed while scrolling.

Auto start: The time delay before Quick View scrolling resumes after an interruption. This time delay is

also the event timeout, which is the time delay before an event message is displayed again if the event

cause is not acknowledged by pressing OK.

When Quick View scrolling is disabled the following setting is available:

Screen Description Micrologic X type

Health1Displays the health of the circuit breaker:

 OK (white)

 Alarm - medium-level (orange)

 Alarm - high-level (red)

Micrologic 2.0 X,

5.0 X, 6.0 X, 7.0 X

Current1Displays I1, I2, I3 RMS current on phase 1, 2, 3 values as bar graphs

expressed in % of Ir.The highest phase current value is displayed in A (Amps)

under the bar graph.

Micrologic 2.0 X,

5.0 X, 6.0 X, 7.0 X

Network1Displays real-time values for:

Average of 3 RMS phase-to-phase voltage

Frequency

Power factor

Micrologic 2.0 X,

5.0 X, 6.0 X, 7.0 X

Power1Displays real time values for:

P tot: total active power

Q tot: total reactive power

S tot: total apparent power

Micrologic 2.0 X,

5.0 X, 6.0 X, 7.0 X

Energy1Displays real time values for:

Ep: total active energy

Eq: total reactive energy

Es: total apparent energy

Micrologic 2.0 X,

5.0 X, 6.0 X, 7.0 X

Trip curve Indicates, when dual setting is on:

A curve activated or

B curve activated

NOTE: The screen is not displayed when dual setting is off.

Micrologic 2.0 X,

5.0 X, 6.0 X, 7.0 X

LI Displays a selection of protection settings:

Long time overcurrent protection threshold Ir

Long time overcurrent protection time delay tr

Short time overcurrent protection threshold Isd

Micrologic 2.0 X

LSI Displays a selection of protection settings:

Long time overcurrent protection threshold Ir

Long time overcurrent protection time delay tr

Short time overcurrent protection threshold Isd

Short time overcurrent protection time delay tsd

Instantaneous overcurrent protection threshold Ii

Micrologic 5.0 X,

6.0 X, 7.0 X

GDisplays a selection of protection settings:

Ground fault protection threshold Ig

Ground fault protection time delay tg

Micrologic 6.0 X

VDisplays a selection of protection settings:

Earth fault protection threshold IΔn

Earth fault protection time delay tΔn

Micrologic 7.0 X

1 Screen data is refreshed every second.

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Time out: The time delay before the current bar graph is displayed. This time delay is also the event

timeout, which is the time delay before an event message is displayed again if the event cause is not

acknowledged by pressing OK.

The configurable settings are shown in the following table.

Starting Quick View Scrolling

With Quick View mode enabled, resume Quick View scrolling:

automatically

manually

To begin Quick View scrolling automatically, wait for the Auto start timeout to elapse.

To begin Quick View scrolling manually:

Stopping Quick View Scrolling

Stop Quick View scrolling as follows:

Press the ESC or home button. The display screen displays the Home menu. From here, use the up

and down buttons to navigate through the menu structure.

NOTE: If no button is pressed before the Auto start timeout expires, Quick View scrolling resumes.

Press one of the three contextual buttons. Quick View scrolling stops. Use the up and down buttons to

scroll manually through the Quick View screens.

Disabling Quick View Automatic Scrolling

To disable scrolling in Quick View mode:

Setting Unit Range Step Factory Setting

Scrolling – ON/OFF – ON

Pageflow seconds 3–60 1 3

Auto start minutes 1–60 1 15

Time out minutes 1–60 1 15

Step Action

1 In the Home menu, select Quick View.

2Press OK to resume Quick View scrolling.

Step Action

1 Press the Home button.

2 Navigate to Home → Configuration → General → Quick View.

3 Press OK.

4 Use the + or - contextual buttons to set the Scrolling setting to:

ON to select Quick View automatic scrolling.

OFF to disable Quick View automatic scrolling.

5 Press OK to save the selection.

6 Press ESC or the Home button.

A confirmation screen is displayed.

7 Press Y to save the settings.

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Tree Navigation Mode

Tree Structure Screen Display

Use Tree Navigation mode to navigate manually through the Micrologic X control unit menu structure. Tree

Navigation mode enables the following actions:

Display measurement values for the control unit

View active alarms, and event history

View maintenance items, and a history of service records

Display and edit control unit configuration settings

Display and edit protection settings

All Tree Navigation menu selections begin at the home button:

Display Screen Menus

The Micrologic X control unit presents data, commands, and settings in a tree structure. Click the link on

one of the following level 2 sub-menu items to see its content:

Measures Screens with Quality Gauge

A quality gauge is displayed on the following screens to give a graphical representation of the

measurement compared to the expected range:

3-phase current unbalances IUnb

Average of 3 rms phase-to-neutral voltages Vavg VLL(V)

Maximum of 3 rms phase-to-neutral voltage unbalances Vunb VLL(%)

Frequency F(Hz)

Level 1 Level 2

Home Quick View

(see page 35)

Measures

(see page 45)

Alarms/History

(see page 50)

Maintenance

(see page 51)

Configuration

(see page 52)

Protection

(see page 54)

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DOCA0102EN-00 05/2016 39

For example, for the frequency screen, the following icons indicate the measurement compared to the

expected range:

Navigating in the Menu Structure

Use the contextual and dedicated buttons on the face of the Micrologic X control unit to navigate in the

menu structure, and to access displayed values and configurable settings.

The possible operations are listed below, and are illustrated with an example:

Display data, for example, energy values

Reset values or counters, for example, reset the maximum RMS current

Select options in a list, for example, language

Edit a value, for example, nominal voltage

Set protection settings, for example, long-time overcurrent protection

Validate a pop-up message, for example, a pop-up trip message

Displaying Data

The following example shows how to display energy values:

OK if the difference between

the measured and expected

frequencies is less than 1%

Medium-level alarm if the

difference between the measured

and expected frequencies is +1–

4% or -1– -6%

High-level alarm if the

difference between the measured

and expected frequencies is

greater than +4% or less than -6%

Step Action Screen

1 Press the home button. The Home menu opens. Press the down arrow to select

Measures.

2 Press OK. The Measures menu opens. Press the down arrow to select Energy.

3 Press OK. The Energy menu opens. Press the down arrow to select E in.

4 Press OK. The E in screen is displayed.

5 To exit the E in screen, either:

Press the home button to return to the Home menu.

Press the ESC button to return to the Energy menu.

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Resetting Values

Some menus present values or counters that can be reset. The following example shows how to navigate

to and reset the maximum RMS current:

Selecting Options in a List

Some menus present options in a list. The following example shows how to navigate to and select

language options:

Step Action Screen

1 Press the home button. The Home menu opens. Press the down arrow to select

Measures.

2 Press OK. The Measures menu opens. Select Current.

3 Press OK. The Current menu opens. Press the down arrow to select Reset Max.

4 Press OK. The Reset Max confirmation screen opens.

5 Do one of the following:

Press Y to reset the maximum RMS current and return to the Current screen.

Press N to return to the Current screen without resetting the value.

Step Action Screen

1 Press the home button. The Home menu opens. Press the down arrow to select

Configuration.

2 Press OK. The Configuration menu opens. Select General.

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Editing and Saving Parameter Settings

When editing a parameter setting, use the + or – buttons to increment or decrement the setting by a single-

step amount. Hold down the button to accelerate the process.

This function applies to both numeric values and list selections.

The following example shows how to edit the nominal voltage:

3 Press OK. The General menu opens. Select Language

4 Press OK. The Language menu opens.

5 Press the up and down arrow buttons to select a language and press OK.A

confirmation check appears next to the selected language.

6 To save the selection, press:

The ESC button to return to the General menu.

The home button to return to the Home menu.

–

7 In the confirmation screen:

Press Y to confirm the change of settings.

Press N to undo the edit.

Step Action Screen

1 Press the home button. The Home menu opens. Press the down arrow to select

Configuration.

2 Press OK. The Configuration menu opens. Press the down arrow to select Network.

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If the edit did not succeed, a detected error message appears. Click OK to confirm the message, and then

the previous menu is displayed.

Setting Protection Settings

The following example shows how to set the long-time overcurrent protection:

3 Press OK. The Network menu opens. Select Nominal Voltage.

4 Press OK. The Nominal Voltage menu opens.

5 In the Nominal Voltage menu, select Un(V) and press OK to enable editing of the

Un(V) parameter. The parameter is displayed in black on a white background to

indicate that editing is enabled.

In this example, 400, the factory setting value, is displayed.

6 Press the + and – buttons to scroll through available settings.

Possible values are 208, 220, 230, 240, 380, 400, 415, 440, 480, 500, 525, 550,

575, 600, 660, 690, and 1,000.

Press OK to select a setting.

The background changes to black.

7 To save the change of settings, press one of the following:

The ESC button to return to the Nominal Voltage screen

The home button to return to the Home menu

–

8 In the confirmation screen:

Press Y to confirm and save the change of settings.

Press N to undo the edit.

Step Action Screen

1 Press the home button. The Home menu opens. Press the down arrow to select

Protection.

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Validating a Pop-Up Message

A trip or alarm event displays a pop-up message on the display screen. The message overrides the screen

currently displayed.

The following example shows how to handle a pop-up trip message.

2 Press OK. The Protection menu opens. Select I Long time.

3 Press OK. The I Long time menu opens. In the I Long time menu, select the Ir

parameter.

4 Press OK to enable editing of the Ir parameter.

The parameter is displayed in black on a white background to indicate that editing

is enabled.

5 Press the + and – buttons to scroll through available settings.

Press OK to select a setting.

The parameter is displayed in white on a black background to indicate that a setting

has been selected.

6 Use the down arrow to select the next parameter to be set and repeat step 5.

7 To save the change of settings, press:

The ESC button to return to the Protection screen

The home button to return to the Home menu

–

8 In the confirmation screen:

Press Y to confirm and save the change of settings.

Press N to undo the edit.

Step Action Screen

1 A pop-up trip message appears on the screen.

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2 Press OK to view details of the trip.

3 If a down arrow appears at the bottom of the screen, press the down arrow to view

more details about the trip event.

4 After taking steps to resolve the cause of the trip, click OK to acknowledge the trip

context. The Alarm/History screen is displayed.

–

5 Press ESC to return to the screen displayed before the pop-up message appeared,

or Home to return to the Home screen.

Step Action Screen

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Measures Menu

Description

The Measures menu contains the following sub-menus:

Current

The Current menu presents the following measurements:

Level 1 Level 2 Level 3 Function description

Home Measures Current Current real-time measurements

Voltage Voltage real-time measurements

Power Power real-time measurements

Energy Energy real-time measurements

Frequency Frequency real-time measurements

I Harmonics Current harmonics real-time measurements

V Harmonics Voltage harmonics real-time measurements

Power Factor Power factor real-time measurement

Level 3 Level 4 Level 5 Parameter name

Current I I1 (A) RMS current on phase 1

I2 (A) RMS current on phase 2

I3 (A) RMS current on phase 3

IN (A)1RMS current on neutral

Ig (A)2RMS current on ground

IΔn (A)3RMS current on earth leakage

I MAX I1 (A) Maximum RMS current on phase 1

I2 (A) Maximum RMS current on phase 2

I3 (A) Maximum RMS current on phase 3

IN (A)1Maximum RMS current on neutral

Ig (A)2Maximum of RMS current on ground

IΔn (A)3Maximum of RMS current on earth leakage

I Avg I (1,2,3) (A) Average of 3-phase RMS currents

I Unb I (1,2,3) (%) 3-phase current unbalances, with quality gauge

I Unb MAX I (1,2,3) (%) Maximum of 3-phase current unbalances

Reset MAX Reset of maximum RMS current, plus date and time of

last reset

1 Applies to 4-pole circuit breakers or 3-pole circuit breakers with ENCT option.

2 Applies to Micrologic 2.0 X, 5.0 X, 6.0 X

3 Applies to Micrologic 7.0 X.

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Voltage

The Voltage menu presents the following measurements:

Level 3 Level 4 Level 5 Parameter name

Voltage V V12 (V) RMS phase-to-phase voltage 1-2

V23 (V) RMS phase-to-phase voltage 2-3

V31 (V) RMS phase-to-phase voltage 3-1

V1N (V)1RMS phase-to-neutral voltage 1-N

V2N (V)1RMS phase-to-neutral voltage 2-N

V3N (V)1RMS phase-to-neutral voltage 3-N

V MAX V12 (V) Maximum RMS phase-to-phase voltage 1-2

V23 (V) Maximum RMS phase-to-phase voltage 2-3

V31 (V) Maximum RMS phase-to-phase voltage 3-1

V1N (V)1Maximum RMS phase-to-neutral voltage 1-N

V2N (V)1Maximum RMS phase-to-neutral voltage 2-N

V3N (V)1Maximum RMS phase-to-neutral voltage 3-N

V MIN V12 (V) Minimum RMS phase-to-phase voltage 1-2

V23 (V) Minimum RMS phase-to-phase voltage 2-3

V31 (V) Minimum RMS phase-to-phase voltage 3-1

V1N (V)1Minimum RMS phase-to-neutral voltage 1-N

V2N (V)1Minimum RMS phase-to-neutral voltage 2-N

V3N (V)1Minimum RMS phase-to-neutral voltage 3-N

V Avg VLL (V) Average of 3 RMS phase-to-phase voltages

(V12+V23+V31)/3, with quality gauge

VLN (V)1Average of 3 RMS phase-to-neutral voltages

(V1N+V2N+V3N)/3

V Unb VLL (%) 3 phase-to-phase voltage unbalances, with quality

gauge

VLN (%)13 phase-to-neutral voltage unbalances

VUnb MAX VLL (%) Maximum V Unb VLL value since last reset

VLN (%)1Maximum V Unb VLN value since last reset

Reset MIN/MAX Reset of minimum and maximum RMS voltage, plus

date and time of last reset

1 Applies to 4-pole circuit breakers or 3-pole circuit breakers with ENVT option.

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Power

The Power menu presents the following measurements:

Energy

The Energy menu presents the following measurements:

Frequency

The Frequency menu presents the following measurements:

Level 3 Level 4 Level 5 Parameter name

Power P P1 (kW) Active power on phase 1

P2 (kW) Active power on phase 2

P3 (kW) Active power on phase 3

Ptot (kW) Total active power

P MAX Ptot (kW) Maximum total active power

QQ1 (kVAR)1Reactive power on phase 1

Q2 (kVAR)1Reactive power on phase 2

Q3 (kVAR)1Reactive power on phase 3

Qtot (kVAR) Total reactive power

Q MAX Qtot (kVAR) Maximum total reactive power

SS1 (kVA)1Apparent power on phase 1

S2 (kVA)1Apparent power on phase 2

S3 (kVA)1Apparent power on phase 3

Stot (kVA) Total apparent power

S MAX Stot (kVA) Maximum total apparent power

Reset MAX Reset of maximum power, plus date and time

of last reset

1 Applies to 4-pole circuit breakers or 3-pole circuit breakers with ENVT option.

Level 3 Level 4 Level 5 Parameter name

Energy E total Ep (kWh) Total active energy

Eq (kVArh) Total reactive energy

Es (kVAh) Total apparent energy

E received Ep (kWh) Total active energy delivered (counted positively)

Eq (kVArh) Total reactive energy delivered (counted positively)

E delivered Ep (kWh) Total active energy received (counted negatively)

Eq (kVArh) Total reactive energy received (counted negatively)

Reset counters Reset of accumulated energy, plus date and time of last

reset

Level 3 Level 4 Level 5 Parameter name

Frequency F F (Hz) Frequency, with quality gauge

F MAX F (Hz) Maximum frequency

F MIN F (Hz) Minimum frequency

Reset MIN/MAX Reset of minimum and maximum frequency, plus date and

time of last reset

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I Harmonics

The I Harmonics menu presents the following measurements:

V Harmonics

The V Harmonics menu presents the following measurements:

Level 3 Level 4 Level 5 Level 6 Parameter name

I Harmonics I THD I1 (%) Total Harmonic Distortion (THD) of current on phase

1 compared to the fundamental

I2 (%) Total Harmonic Distortion (THD) of current on phase

2 compared to the fundamental

I3 (%) Total Harmonic Distortion (THD) of current on phase

3 compared to the fundamental

IN (%)1Total Harmonic Distortion (THD) of current on neutral

compared to the fundamental

I THD IN MAX1IN (%) Maximum of Total Harmonic Distortion (THD) of

current on neutral compared to the fundamental

I THD Avg I (1, 2, 3)% Average of 3 phase current Total Harmonic

Distortions (THD) compared to the fundamental

I THD Avg MAX I (1, 2, 3)% Maximum average of 3 phase current Total Harmonic

Distortions (THD) compared to the fundamental, plus

date and time of occurrence

Reset MAX Reset of minimum and maximum THD/thd, plus date

and time of last reset

1 Applies to 4-pole circuit breakers or 3-pole circuit breakers with ENVT option.

Level 3 Level 4 Level 5 Level 6 Parameter name

Voltage V THD V12 (%) Total harmonic distortion (THD) of phase-to-phase

voltage 1-2 compared to the fundamental

V23 (%) Total harmonic distortion (THD) of phase-to-phase

voltage 2-3 compared to the fundamental

V31 (%) Total harmonic distortion (THD) of phase-to-phase

voltage 3-1 compared to the fundamental

V1N (%)1Total harmonic distortion (THD) phase-to-neutral

voltage 1-N compared to the fundamental

V2N (%)1Total harmonic distortion (THD) phase-to-neutral

voltage 2-N compared to the fundamental

V3N (%)1Total harmonic distortion (THD) phase-to-neutral

voltage 3-N compared to the fundamental

V THD Avg VLL (%) Average of 3 phase-to-phase voltage Total Harmonic

Distortions (THD) compared to the fundamental

VLN (%)1Average of 3 phase-to-neutral voltage Total Harmonic

Distortions (THD) compared to the fundamental

V THD Avg MAX VLL (%) Maximum value since last reset of average of 3 phase-

to-phase voltage Total Harmonic Distortions (THD)

compared to the fundamental

VLN (%)1Maximum value since last reset of average of 3 phase-

to-neutral voltage Total Harmonic Distortions (THD)

compared to the fundamental

Reset MAX Reset all maximum and minimum voltages

1 Applies to 4-pole circuit breakers or 3-pole circuit breakers with ENVT option.

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Power Factor Menu

The Power Factor menu presents the following data:

Level 3 Level 4 Parameter name

Power Factor PF Total power factor

Cos Φ Total fundamental power factor

Network Capacitive1Lead

Network Inductive2Lag

1 In the case of lead.

2 In the case of lag.

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Alarms & History Menu

Description

The Alarms & History menu contains the following sub-menus:

NOTE: Trip history and alarm history events are listed in chronological order, with the most recent event

first.

Alarm Screen

An alarm screen contains the following information:

A down arrow at the bottom of the screen indicates that another alarm screen can be displayed.

Trips History and Alarms History Screens

A trips history or alarms history screen contains the following information:

Level 1 Level 2 Level 3 Function description

Home Alarms &

History

Alarms 31Contains active alarms of medium and high-level severity. Trips are not

included.

Trips history Contains trip history.

Alarms history Contains alarm history, not including trip history.

1 The figure indicates the number of active alarms

Screen title: Alarm

Alarm description: up to 3 lines of text describing the nature of the alarm

Occurrence

The date and time that the alarm occurred

Screen title: Trip history or Alarms history

Alarm description: up to 3 lines of text describing the nature of the alarm

Occurrence

The date and time of the occurrence of the alarm

Completion

The date and time of the completion of the alarm

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Maintenance Menu

Description

The Maintenance menu contains the following sub-menus:

Switch to Other Set

The Switch to other set menu is displayed only when Dual Settings is enabled and presents the following

data:

Assistance

The Assistance menu presents the following data:

Health

The Health menu presents the following data:

CB Overview

The CB overview menu presents the following data:

Level 1 Level 2 Level 3 Function description

Home Maintenance Switch to other set1Dual setting configuration

Assistance Contains information describing the maintenance providers,

schedule, equipment and type of the circuit breaker.

Health Describes the monitored health of the circuit breaker.

CB overview Presents information about the circuit breaker and its internal

and external accessories.

1 Displayed only when Dual Settings is enabled and configured mode for switching between set A and set B is Local

HMI

Level 3 Level 4 Parameter name

Switch to other set Switch to set B Selection of the setting group A or B, when the dual settings function is

enabled.

Level 3 Level 4 Level 5 Parameter name

Assistance Firmware Version μLogic version Micrologic X firmware version

ASIC version

TCI version

M&P version

Measure version

CRC32

Level 3 Parameter name

Health Health is represented by one of three icons:

 no alarm detected

 Orange icon: medium-level alarm detected

 Red icon: high-level alarm detected

Level 3 Level 4 Parameter name

CB overview CB block Circuit breaker, frame size, power system, performance level and

version.

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52 DOCA0102EN-00 05/2016

Configuration Menu

Description

The Configuration menu contains the following sub-menus:

General

The General menu presents the following data:

Network

The Network menu presents the following data:

Level 1 Level 2 Level 3 Function description

Home Configuration General Settings of the HMI display and access to protection settings.

Network Settings of nominal voltage and frequency, power, or power

sign and VT ratio

(see page 52)

Measures Settings of measurement calculation

(see page 53)

Communication Settings enabling wireless access and the control mode

(see page 53)

Level 3 Level 4 Level 5 Parameter name

General Language

(see page 33)

List of display screen languages.

Date & Time

(see page 22)

dd/mm/yyyy Today’s date.

hh:mm:ss Local time.

Quick View

(see page 36)

Scrolling Enable/disable Quick View scrolling.

Auto start (min) The time delay before Quick View scrolling resumes after

an interruption if no button is pressed.

NOTE: Only available when Quick View is enabled.

Pageflow (sec) The length of time for which each Quick View screen is

displayed.

NOTE: Only available when Quick View is enabled.

Timeout (min) The time delay before the current bar graph is displayed if

no button is pressed.

NOTE: Only available when Quick View is not enabled.

Lock protection

(see page 63)

Keypad Enable locking of access to the Protection menu either

through the local HMI keypad or through external access,

to help prevent unauthorized users from editing protection

settings.

Not Allowed: to lock the Protection menu

Allowed: to unlock the Protection menu

External access

Level 3 Level 4 Level 5 Parameter name

Network Nominal Voltage Un (V) Rated voltage.

Setting values include: 208 / 220 / 230 / 240 / 380 / 400 /

415 / 440 / 480 / 500 / 525 / 550 / 575 / 600 / 660 / 690 /

1000 V.

Factory setting = 400.

Nominal

Frequency

Hz Rated frequency

50 Hz (factory setting)

60 Hz

Power Sign

(see page 119)

Power flow sign setting:

P+ = the active power flows from upstream (top) to

downstream (bottom) (factory setting).

P– = the active power flows from downstream (bottom)

to upstream (top).

VT Ratio VT in VT primary voltage.

Values from 100 to 1,250, in increments of 1.

VT out VT secondary voltage.

Values from 100 to 690, in increments of 1.

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Measures

The Measures menu presents the following data:

Communication

The Communication menu presents the following data:

Level 3 Level 4 Level 5 Parameter name

Measures PF/VAR Conv

(see page 128)

Sign convention for cos Φ, PF power factor, and reactive

power:

IEC or IEEE (for display only)

System Type

(see page 114)

Nb of poles 3P or 4P, for display only.

ENVT External neutral voltage tap. Setting values include:

If 4P: NO (for display only)

If 3P: YES or NO

ENCT External neutral current transformer. Setting values include:

If 4P: NO (for display only)

If 3P: YES or NO

Total P Calcul

(see page 117)

Total power calculation method:

Vector

Arithmetic

E Calcul

(see page 121)

Energy Accumulation mode. Energy values to be used in

energy calculations:

Absolute

Signed

Level 3 Level 4 Level 5 Parameter name

Communication Bluetooth – Enables Bluetooth control: ON or OFF

BLE timer Time delay before Bluetooth is automatically deactivated:

if no connection is established

if no activity is detected

From 5 to 60 minutes.

Factory setting = 15 minutes

IEEE 802.15.4 Enables IEEE 802.15.4 communication: ON or OFF

NOTE: Enabled only if IEEE 802.15.4 has already been

commissioned through Ecoreach software.

Control mode Mode Selection of source for open/close function

MANU: manually using local mechanical button.

Displays (Push button command only). The control

unit will reject remote open/close orders.

AUTO: In addition to manual orders, the control unit

will accept certain open/close orders, depending on

the configuration of the remote/local parameter. The

configuration is displayed as (Remote control) or

(Local control)

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54 DOCA0102EN-00 05/2016

Protection Menu

Description

The Protection menu contains the following sub-menus:

I Long Time

The I Long time menu presents the following data and settings:

I Short Time

The I Short time menu for Micrologic 5.0 X, 6.0 X, 7.0 X presents the following data and settings:

I Instantaneous

The I Instantaneous menu for Micrologic 2.0 X presents the following data and settings:

Level 1 Level 2 Level 3 Function description

Home Protection I Long time Long-time overcurrent protection

(see page 65)

, L or ANSI code

49RMS

I Short time1Short-time overcurrent protection

(see page 68)

, S or ANSI code 51

I Instantaneous Instantaneous overcurrent protection

(see page 70)

, I or ANSI code

I Ground Fault2Ground-fault protection

(see page 72)

, G or ANSI code 50G/51G

Earth Leakage3Earth-leakage protection

(see page 74)

, ANSI code 50G/51G

I Neutral Neutral protection

(see page 76)

Dual Settings Dual settings

(see page 78)

1 Applies to Micrologic 5.0 X, 6.0 X, 7.0 X

2 Applies to Micrologic 6.0 X

3 Applies to Micrologic 7.0 X

Level 3 Level 4 Parameter name

I Long time Ir (x In) Ir long-time overcurrent protection threshold expressed according to the control

unit rated current In.

Used for quick settings: 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 0.95, 0.98, 1 x In.

Ir (A) Ir long-time overcurrent protection threshold expressed in Amps.

Used for settings with 1 A resolution.

tr @6Ir (s) tr long-time overcurrent protection time delay.

Level 3 Level 4 Parameter name

I Short time Ir (A) Ir long-time overcurrent protection threshold expressed according to the control

unit rated current In, for display only

Isd (x Ir) Isd short-time overcurrent protection threshold expressed according to the Ir

long-time overcurrent protection threshold.

Step = 0.5 x Ir; Rang = 0.5–10 x Ir

Isd (A) Isd short-time overcurrent protection threshold expressed in Amps, for display

only.

tsd (s) tsd short-time overcurrent protection time delay.

I2t (tsd) Enable inverse time curve function: ON or OFF

Level 3 Level 4 Parameter name

I Instantaneous Ir (A) Ir long-time overcurrent protection threshold expressed in Amps, for

display only

Isd (x Ir) Isd short-time overcurrent protection threshold expressed according

to the Ir long-time overcurrent protection threshold.

Step = 0.5 x Ir. Range = .5–10 x Ir

Isd (A) Isd short-time overcurrent protection threshold expressed in Amps, for

display only.

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The I Instantaneous menu for Micrologic 5.0 X, 6.0 X, and 7.0 X presents the following data and settings:

Earth Leakage

The Earth Leakage menu for Micrologic 7.0 X presents the following data and settings:

I Ground Fault

The I Ground Fault menu presents the following data and settings:

I Neutral

The I Neutral menu presents the following data and settings:

Level 3 Level 4 Parameter name

I Instantaneous Protection Enable instantaneous overcurrent protection mode: ON or OFF

Ii (x In) Ii instantaneous overcurrent protection threshold expressed

according to the control unit rated current In.

Step = 0.5 x In. Range = .2–15 x In

Ii (A) Ii instantaneous overcurrent protection threshold expressed in Amps,

for display only.

Ii mode Instantaneous overcurrent protection time delay mode: Standard or

Fast

Level 3 Level 4 Parameter name

Earth Leakage IΔn (A) Earth fault protection threshold expressed in Amps

tΔn (s) Earth fault protection time delay

Level 3 Level 4 Level 5 Parameter name

I Ground Fault I Protection Enable Ground Fault protection mode: ON or

OFF

Ig (x In) Ground fault protection threshold expressed

according to the control unit rated current In

Ig (A) Ground fault protection threshold expressed in

Amps

tg (s) Ground fault protection time delay

I2t (tg) Enable ground fault protection curve function:

ON or OFF

Level 3 Level 4 Parameter name

I Neutral1Nb of poles Number of poles 3P or 4P, for display only

Ir (A) Long time overcurrent protection threshold, for display only.

Protection Set neutral protection:

OFF

0.5

1

Oversized Neutral

IN (A) RMS current on neutral, for display only

1 Applies to 4-pole circuit breakers and 3-pole circuit breakers with ENCT option

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Dual Settings

The Dual Settings menu presents the following data and settings:

If the Dual Settings menu is enabled the following data and settings are shown and can be configured:

Level 3 Level 4 Parameter name

Dual Settings Dual Settings Enables dual settings: YES or NO

Settings Displays the active configuration A or B, if Dual Settings is enabled.

Switch mode1Displays the configured mode for switching between setting group A and

setting group B:

Local HMI

IO module

Remote ctrl

1 Displayed if Dual Settings is enabled. Configurable through Ecoreach software

Level 4 Level 5 Level 6 Parameter name

Dual settings:

Settings B

I Long time1Ir (x In) Ir long-time overcurrent protection threshold expressed

according to the control unit rated current In, for display

only.

Ir (A) Ir long-time overcurrent protection threshold expressed

in Amps.

tr @6Ir (s) tr long-time overcurrent protection time delay.

I Short time1Ir (A) Ir long-time overcurrent protection threshold expressed

according to the control unit rated current In, for display

only.

Isd (x Ir) Isd short-time overcurrent protection threshold

expressed according to the Ir long-time overcurrent

protection threshold.

Isd (A) Isd short-time overcurrent protection threshold

expressed in Amps, for display only.

tsd (s) tsd short-time overcurrent protection time delay.

I2t Enable inverse time curve function: ON or OFF

I Instantaneous1Protection2Enable instantaneous protection: ON or OFF

Ii (x In)2Ii instantaneous overcurrent protection threshold

expressed according to the control unit rated current In.

Ii (A)2Ii instantaneous overcurrent protection threshold

expressed in Amps, for display only.

Ii mode2Instantaneous overcurrent protection time delay mode:

Standard or Fast

I 1Protection Enable I Ground Fault protection mode: ON or OFF

Ig (x In) Ground fault protection threshold expressed according

to the control unit rated current In

Ig (A) Ground fault protection threshold expressed in Amps

tg (s) Ground fault protection time delay

I2t (tg) Enable ground fault protection curve function: ON or

OFF

1 If Dual Settings is enabled, B is displayed on the upper left side of these screens.

2 Applies to Micrologic 5.0 X, 6.0 X, 7.0 X

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DOCA0102EN-00 05/2016 57

Pop-up Event Messages

Event Message Types and Priority

When the Micrologic X control unit detects any of the following events, a pop-up message is displayed, in

this order of priority:

Bluetooth pairing

Trip

High-level alarm

Medium-level alarm

An event message overrides another event message with lower priority.

An event message overrides both Quick View scrolling and tree navigation operating mode displays.

Bluetooth Pairing Display

The Bluetooth pairing message is displayed during the Bluetooth pairing procedure

(see page 157)

The Bluetooth pairing message has the highest priority and overrides all other messages.

The Bluetooth pairing screen is closed when:

The pairing is confirmed on the mobile device

The Bluetooth button on the local HMI is pressed

The Bluetooth pairing timeout expires

If an event message was displayed before or occurs during the Bluetooth pairing, it is displayed after the

Bluetooth pairing message closes. Otherwise the Home screen is displayed.

Pop-up Trip and Alarm Message Displays

Handling Pop-up Trip and Alarm Messages

A trip or alarm message indicates that a potentially serious operating event has occurred. To address the

event, take the following steps:

Message type Description Example

Trip When a trip occurs, the trip message is displayed with a red

backlight.

High-level alarm When a high-level alarm occurs, the high-level alarm message

is displayed with a red backlight.

Medium-level alarm When a medium-level alarm occurs, the medium-level alarm

message is displayed with an orange backlight.

Step Action

1 When the trip or alarm event message displays, press OK.

The display screen displays a message explaining the context of the trip or details of the alarm event. The

backlight color turns white.

2 After reading the explanatory message, take the remedial steps necessary to resolve the underlying

condition that caused the trip or alarm.

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58 DOCA0102EN-00 05/2016

NOTE: The display screen displays the trip or alarm message again, with the appropriate backlight color,

when the message is not acknowledged by pressing OK before the event timeout expires.

For information about handling trip and alarm events, refer to the

Masterpact MTZ2/MTZ3 Circuit Breakers

and Switch-Disconnectors - User Guide

For information about how Micrologic X control units handle events, refer to Event Management

(see page 164)

Event Timeout

The event timeout can be configured in Configuration → General → Quick View.

If Quick View scrolling is on, the event timeout is the same as the Auto start for Quick View.

If Quick View scrolling is off, the event timeout is displayed as Time out.

For more information about event timeout configuration, refer to Configuring Quick View Scrolling

(see page 36)

3 After resolving the cause of the event, press OK to acknowledge the message. The explanatory message

closes, and the display screen shows the Alarm/History menu screen.

NOTE: Return to the Home screen by pressing ESC or the Home button while a pop-up screen or

trip/alarm context screen is displayed.

Step Action

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Micrologic X

Protection Functions

DOCA0 102EN-00 05/2016

Protection Fu nctions

Chapter 3

Protection Functions

What Is in This Chapter?

This chapter contains the following sections:

Section Topic Page

3.1 Introduction 60

3.2 Standard Protection Functions 64

3.3 Setting Guidelines 84

Protection Functions

60 DOCA0102EN-00 05/2016

Introduction

Section 3.1

Introduction

Electrical Distribution Protection

Presentation

Micrologic X control units are designed to provide protection against overcurrents and ground-fault

currents.

Micrologic X control units offer protection characteristics that comply with the requirements of standard

IEC 60947-2.

Description

When choosing protection characteristics, take into account:

Overcurrents (overloads and short-circuits) and potential ground-fault currents

Conductors that need protection

Coordination and selectivity between the devices

The presence of harmonic currents

Protection characteristics can be represented on a trip curve that shows the circuit breaker trip time as a

function of the measured current and protection settings. Protection settings are indexed on the rated

current In of the Micrologic X control unit.

Rated Current In

The protection setting ranges depend on the rated current In, defined by the sensor plug inserted in the

Micrologic X control unit.

The sensor plug can be replaced or modified. Mechanical mismatch protection prevents the installation of

a sensor plug that is not compatible with the circuit breaker frame.

For each circuit breaker frame size, the range of sensor plugs available is shown in the following table.

Sensor plug MTZ1 frame rated current MTZ2 frame rated current MTZ3 frame

rated current

In 06 08 10 12 16 08 10 12 16 20 25 32 40 40 50 63

400 A XXX––XX–––––––––

630 A XXXX–XXX––––––––

800 A – XXXXXXXX–––––––

1000 A – – XXX–XXXX––––––

1250 A – – – XX––XXXX–––––

1600 A – – – – X–––XXXX––––

2000 A – – – – – – – – – XXXXX––

2500 A – – – – – – – – – – XXXXX–

3200 A – – – – – – – – – – – XXXXX

4000 A – – – – – – – – – – – – XXXX

5000 A – – – – – – – – – – – – – – XX

6300 A – – – – – – – – – – – – – – – X

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Micrologic 2.0 X Control Unit

Micrologic 5.0 X Control Unit

Micrologic 6.0 X Control Unit

Micrologic 2.0 X control units provide:

Long-time overcurrent protection (Ir)

Instantaneous overcurrent protection (Isd)

The protection functions of Micrologic 2.0 X control units operate without an auxiliary power supply.

The control unit is powered by the current flowing through the circuit breaker.

Micrologic 5.0 X control units provide:

Long-time overcurrent protection (Ir)

Short-time overcurrent protection (Isd)

Instantaneous overcurrent protection (Ii)

The protection functions of Micrologic 5.0 X control units operate without an auxiliary power supply. The

control unit is powered by the current flowing through the circuit breaker.

Micrologic 6.0 X control units provide:

Long-time overcurrent protection (Ir)

Short-time overcurrent protection (Isd)

Instantaneous overcurrent protection (Ii)

Ground-fault protection (Ig)

The protection functions of Micrologic 6.0 X control units operate without an auxiliary power supply. The

control unit is powered by the current flowing through the circuit breaker.

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62 DOCA0102EN-00 05/2016

Micrologic 7.0 X Control Unit

DIN / DINF and SELLIM Instantaneous Protections

DIN / DINF and SELLIM instantaneous protections are internal protections used when the short-circuit

current reaches the withstand limit of the circuit breaker. These protections are not adjustable and are

unlikely to be triggered in normal operating conditions.

The following events can be generated by the DIN / DINF and SELLIM instantaneous protections. Refer to

the event tables

(see page 173)

for more information.

Setting the Protection

Protection functions can be set as follows:

On the Micrologic X display screen, at Home → Protection

With Ecoreach software (password protected)

With Masterpact MTZ mobile App (password protected)

By sending a setting command using the communication network (password protected)

Setting Change Traceability

Changing the protection settings generates one of two events, depending on where the settings are

changed from. The events are logged in the Protection history

(see page 173)

Protection setting changed (display screen).

Protection setting changed (Bluetooth, USB or IFE).

Setting changes recorded in the Protection history include the following:

Date and time of the setting change

Previous settings

Unlocking protection settings (refer to following paragraph)

When the circuit breaker is open and the Micrologic X control unit is not connected to a power supply, long-

time, short-time, instantaneous and ground-fault protection settings and the date of the last change can be

accessed through NFC communication.

Micrologic 7.0 X control units provide:

Long-time overcurrent protection (Ir)

Short-time overcurrent protection (Isd)

Instantaneous overcurrent protection (Ii)

Earth-leakage protection (IΔn)

The protection functions of Micrologic 7.0 X control units operate without an auxiliary power supply.

The long-time, short-time and instantaneous overcurrent protections are powered by the current

flowing through the circuit breaker.

The earth-leakage protection is powered by the system voltage via the VPS voltage power supply

module.

Events History Severity

Ultimate self-protection trip (SELLIM) Trip High

Ultimate self-protection trip (DIN / DINF) Trip High

Ultimate self-protection trip (SELLIM) operate Protection Medium

Ultimate self-protection trip (DIN / DINF) operate Protection Medium

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DOCA0102EN-00 05/2016 63

Locking the Protection Settings

Locking the protection settings is only possible from the Micrologic X display screen at Home →

Configuration → General → Lock protection. It enables you to lock access to protection settings:

From the Micrologic X display screen

From an external access

Select Not Allowed to lock access. Access is allowed by default.

Changing the access to protection settings generates two events, which are logged in the Protection

history

(see page 173)

Protection settings on local screen is unlocked

Remote lock for protection settings is unlocked

Protection Functions

64 DOCA0102EN-00 05/2016

Standard Protection Fun ctions

Section 3.2

Standard Protection Functions

What Is in This Section?

This section contains the following topics:

Topic Page

Long-Time Overcurrent Protection (L or ANSI Code 49RMS) 65

Short-Time Overcurrent Protection (S or ANSI Code 51) 68

Instantaneous Overcurrent Protection (I or ANSI Code 50) 70

Ground-Fault Protection (G or ANSI Code 50G/51G) 72

Earth-Leakage Protection (ANSI Code 50G/51G) 74

Neutral Protection 76

Dual Settings 78

Zone Selective Interlocking (ZSI) 80

Protection Functions

DOCA0102EN-00 05/2016 65

Long-Time Overcurrent Protection (L or ANSI Code 49RMS)

Presentation

Long-time overcurrent protection protects cables, busbars, and busbar trunking against overloads, based

on the true RMS current. It is implemented independently for each phase and for the neutral.

This protection function is an overcurrent time-dependent protection with thermal memory. It operates as

a thermal image, using the heating and cooling model of a conductor. After tripping, the protection

continues to integrate the cooling of the conductor.

This protection function can be used also for transformer or generator protection thanks to the wide range

of settings offered.

Availability

Long-time overcurrent protection is available on:

Micrologic 2.0 X, 5.0 X, 6.0 X, and 7.0 X control units

3-pole and 4-pole circuit breakers

Long-time overcurrent protection is powered by the current flowing through the internal current

transformers of the circuit breaker and it does not require additional external power supply.

Operating Principle

Thermal Image

The control unit uses the calculation of a thermal image to evaluate the conductor heat rise and precisely

monitor the thermal state of the conductors.

Example:

Comparison of the heat rise calculation without thermal image (diagram A) and with thermal image

(diagram B):

0 Instantaneous current (cyclical) in the load

1 Conductor temperature

2 Thermal state calculated without thermal image (diagram A), with thermal image (diagram B)

3 Long-time overcurrent protection threshold

Control unit without thermal image: On each current pulse, the control unit only considers the thermal

effect on the pulse under consideration. No tripping occurs despite the build-up in conductor heat rise.

Control unit with thermal image: The control unit adds the thermal effect of successive current pulses.

Tripping occurs based on the actual thermal state of the conductor.

The thermal image function protects cables and busbars from overheating in case of low-amplitude

repetitive faults. Such faults can be due to repetitive motor starts, fluctuating load, intermittent ground

faults, or subsequent closing after a fault.

Long-time overcurrent protection is based on the true RMS current of phases and neutral, up to

harmonic 15.

Long-time overcurrent protection is implemented independently for each phase and for neutral when

present

(see page 76)

AB00

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66 DOCA0102EN-00 05/2016

Traditional electronic protection does not protect against repetitive faults because the duration of each

overload detected above the threshold setting is too short to trigger effective tripping. However, each

overload involves a temperature rise in the installation. When cumulated, overloads can overheat the

system.

Thanks to its thermal memory, the thermal image function remembers and integrates thermal heating

caused by each overload detected above the threshold setting:

Before tripping, the integrated heating value reduces the associated time delay. The reaction of the

control unit is closer to the real heating of the power network system.

After tripping, the thermal function reduces the time delay when closing the circuit breaker on an

overload.

The thermal memory works whatever the current value. It offers an accurate image of the cable or busbar

thermal status. The time constant is the same for heating and cooling.

In the case of a control unit that is not supplied, the thermal memory is performed by a capacitor, which

implies a fixed cooling time constant. The time constant is equivalent to a tr setting of 12 seconds.

Thermal Memory Reset

The thermal memory can be reset with Ecoreach software.

The thermal memory reset is recorded as an event.

Setting the Protection

The long-time overcurrent protection settings are:

Ir long-time overcurrent protection threshold

tr long-time overcurrent protection time delay

They can be set as follows:

On the Micrologic X display screen, at Home → Protection → I Long time

With Ecoreach software

With Masterpact MTZ mobile App

By sending a setting command using the communication network.

Long-time overcurrent protection can be duplicated when dual settings are activated

(see page 78)

Protection Settings

The tr long-time overcurrent protection time delay is given in cold-state conditions, and for a phase or

neutral current equal to 6 x Ir.

When the current is higher than Isd or Ii, only short-time overcurrent protection and instantaneous

protection are operational.

Tripping Time According to tr Time Delay

Protection Characteristics

The accuracy on the tr time delay is:

-20% to 0% when tr > 2 s

-25% to 0% when tr = 2 s

-30% to 0% when tr < 2 s

Ir characteristics:

I < 1.05 x Ir: no trip

I > 1.2 x Ir: trip

Setting Unit Range Step Factory setting

Ir threshold A 0.4–1 x In 1 A 1 x In

tr time delay s 0.5–24 0.5 0.5

tr setting (tripping time at 6 x Ir) 0.5 s 1s 2s 4s 8s 12 s 16 s 20 s 24 s

Resulting tripping time at 1.5 x Ir 12.5 s 25 s 50 s 100 s 200 s 300 s 400 s 500 s 600 s

Resulting tripping time at 7.2 x Ir 0.34 s 0.69 s 1.38 s 2.7 s 5.5 s 8.3 s 11 s 13.8 s 16.6 s

Protection Functions

DOCA0102EN-00 05/2016 67

Predefined Events

The function generates the following predefined events:

Predefined events cannot be modified by the user. For general information on events, refer to Event

management.

(see page 164)

Event History Severity

Ir trip Trip High

Ir operate Protection Medium

Ir prealarm (I>90%Ir) Protection Low

Ir start (I>105%Ir) Protection Medium

Thermal memory reset order Protection Low

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68 DOCA0102EN-00 05/2016

Short-Time Overcurrent Protection (S or ANSI Code 51)

Presentation

Short-time overcurrent protection protects equipment against phase-to-phase, phase-to-neutral and

phase-to-ground short circuits with total selectivity. It includes two characteristics, definite time and inverse

time, which depend on the status of the I²t setting.

Availability

Short-time overcurrent protection is available on:

Micrologic 5.0 X, 6.0 X, and 7.0 X control units

3-pole and 4-pole circuit breakers

Short-time overcurrent protection is powered by the current flowing through the internal current

transformers of the circuit breaker and it does not require an additional external power supply.

Operating Principle

Short-time overcurrent protection is based on the true RMS current of phases and neutral, up to harmonic

15.

In order to trip on an intermittent fault, the control unit accumulates the intermittent currents in the short-

time tripping range that do not last long enough to trigger a trip. This accumulation may lead to shorter

tripping times than those set.

Setting the Protection

The short-time overcurrent protection settings are:

Isd short-time overcurrent protection threshold

tsd short-time overcurrent protection time delay

I²t short-time overcurrent protection curve (I²t ON or I²t OFF)

They can be set as follows:

On the Micrologic X display screen, at Home → Protection → I Short time

With Ecoreach software

With Masterpact MTZ mobile App

By sending a setting command using the communication network. This function is password protected.

Short-time overcurrent protection can be duplicated when dual settings are activated

(see page 78)

Protection Settings

The following Isd settings are available:

tsd time delay setting is as follows:

The short-time overcurrent threshold Isd sets the level of short-circuit current at which the circuit

breaker trips when reaching the short-time overcurrent time delay.

The short-time overcurrent time delay tsd sets the length of time during which the circuit breaker carries

a short circuit within the short-time overcurrent threshold range.

The short-time overcurrent time delay can be adjusted to:

Four setting values with I2t ON.

 Up to 10 Ir, the tripping curve is an inverse time curve. The time delay decreases as the current

increases.

Above 10 Ir, the tripping curve is a definite time curve with a constant tripping time.

Five setting values with I2t OFF. The tripping curve is a definite time curve with a constant tripping

time.

Setting Unit Range Step Factory

setting

Accuracy

Isd threshold A 1.5 to 10 x Ir 0.5 x Ir11.5 x Ir +/- 10%

1 Finer resolution settings are possible with Ecoreach software and Masterpact MTZ mobile App

Setting Unit Setting Value

tsd with I²t OFF s 0 0.1 0.2 0.3 0.4

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DOCA0102EN-00 05/2016 69

The tsd time delay factory setting is 0 s with I²t OFF.

Zone Selective Interlocking (ZSI)

The ZSI characteristics and external wiring of the zone selective interlocking function, are described

specifically

(seepage80)

If ZSI IN is not set to 1 (open circuit between Z3 and Z4 terminals), the maximum breaking time is 0.08 s

regardless of the tsd setting value.

When ZSI IN is set to 1 and connected to the ZSI OUT of a downstream device (or when the ZSI function

is not used and there is a jumper between the Z3 and Z4 terminals), the tsd time delay is used.

The Isd pick up activates ZSI OUT (Z1 and Z2 terminals).

NOTE: Masterpact MTZ circuit breakers are delivered with a jumper installed between Z3 and Z4.

Predefined Events

The function generates the following predefined events:

Predefined events cannot be modified by the user. For general information on events, refer to Event

Management

(see page 163)

tsd with I²t ON s – 0.1 0.2 0.3 0.4

Non-tripping time s > 0.02 > 0.08 > 0.14 > 0.23 > 0.35

Maximum breaking time s < 0.08 < 0.14 < 0.20 < 0.32 < 0.50

Setting Unit Setting Value

Event History Severity

Isd trip Trip High

Isd operate Protection Medium

Isd start (I > Isd) Protection Medium

Protection Functions

70 DOCA0102EN-00 05/2016

Instantaneous Overcurrent Protection (I or ANSI Code 50)

Presentation

Instantaneous protection protects equipment against phase-to-phase, phase-to-neutral and phase-to-

ground short circuits. The protection operates with a definite time characteristic. It trips without additional

time delay as soon as the setting current is exceeded.

The protection offers two typical total breaking times:

Standard breaking time of 50 ms, used for applications requiring selectivity. Full selectivity can be

ensured with any Compact NSX circuit breaker installed downstream of a Masterpact device (for

Ue ≤ 440V and MTZ other than type L. Refer to selectivity tables for details).

Fast breaking time of 30 ms, typically used for applications where the thermal constraints of the

equipment need to be limited and when selectivity is not required.

NOTE: On Micrologic 2.0 X, instantaneous protection is a short-time protection without time setting.

Availability

Instantaneous overcurrent protection is available on:

Micrologic 2.0 X, 5.0 X, 6.0 X, and 7.0 X control units

3-pole and 4-pole circuit breakers

It is powered by the current flowing through the internal current transformers of the circuit breaker and it

does not require an additional external power supply.

Operating Principle

The instantaneous overcurrent protection threshold sets the level of short-circuit current at which the circuit

breaker trips with no intentional time delay.

For Micrologic 5.0 X, 6.0 X, 7.0 X control units, instantaneous overcurrent protection can be disabled.

Instantaneous overcurrent protection overrides short-time overcurrent protection when the instantaneous

overcurrent threshold is adjusted to the same or a lower setting than the short-time overcurrent threshold.

Setting the Protection for Micrologic 2.0 X

Protection Settings for Micrologic 2.0 X

Protection Characteristics for Micrologic 2.0 X

The instantaneous overcurrent protection setting for Micrologic 2.0 X is:

Isd short-time overcurrent protection threshold (without time setting)

It can be set as follows:

On the Micrologic X display screen, at Home → Protection → I Instantaneous

With Ecoreach software

With Masterpact MTZ mobile App

By sending a setting command using the communication network. This function is

password-protected.

Instantaneous overcurrent protection can be duplicated when dual settings are

activated

(see page 78)

Setting Unit Range Step Factory setting

Isd threshold A 1.5–10 x Ir 0.5 x Ir11.5 x Ir

1 Finer resolution settings are possible with Ecoreach software and Masterpact MTZ mobile App

Characteristic Unit tsd

Breaktime at 2 x threshold ms ≤ 80

Non-tripping time ms > 20

Accuracy on threshold % +/- 10

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DOCA0102EN-00 05/2016 71

Setting the Protection for Micrologic 5.0 X, 6.0 X, 7.0 X

Protection Settings for Micrologic 5.0 X, 6.0 X, 7.0 X

Protection Characteristics for Micrologic 5.0 X, 6.0 X, 7.0 X

Predefined Events

The function generates the following predefined events:

Predefined events cannot be modified by the user. For general information on events, refer to Event

Management

(see page 163)

The instantaneous overcurrent protection settings are:

Ii enable

li type

Ii instantaneous overcurrent protection threshold

They can be set as follows:

On the Micrologic X display screen, at Home → Protection → I Instantaneous

With Ecoreach software

With Masterpact MTZ mobile App

By sending a setting command using the communication network. This function is password-

protected.

Instantaneous overcurrent protection can be duplicated when dual settings are activated

(see page 78)

Setting Unit Range Step Factory setting

Ii enable – ON/OFF – ON

Ii type – Standard / Fast – Standard

Ii threshold A 1.5–15 x In 0.5 x Ir11.5 x In

1 Finer resolution settings are possible with Ecoreach software and Masterpact MTZ mobile App

Characteristic Unit Ii type is set to Standard Ii type is set to Fast

Breaktime at 2 x threshold ms ≤ 50 ≤ 30

Non-tripping time ms > 20 0

Accuracy on threshold % +/- 10 +/- 10

Event History Severity

Ii trip Trip High

Ii operate Protection Medium

Protection Functions

72 DOCA0102EN-00 05/2016

Ground-Fault Protection (G or ANSI Code 50G/51G)

Presentation

Ground-fault protection ensures protection against phase-to-ground fault, which is more sensitive than

protection based on phase current only. It is generally used in TN-S systems but could also be used in

other earthing systems. Ground-fault protection is based either on the summation of the phases and

neutral current or on the signal delivered by an external sensor, source ground return (SGR) current

transformer through the MDGF module.

NOTE: Ground-fault protection is also called earth-fault protection.

Availability

Ground-fault protection is available on:

Micrologic 6.0 X control units

3-pole and 4-pole circuit breakers

External sensors can be used:

Source ground return protection: including ground-fault protection and an SGR sensor installed around

the connection of the transformer neutral point to ground.

External Neutral Current Transformer (ENCT): measurement of the current on neutral

Ground-fault protection is powered by the current flowing through the internal current transformers of the

circuit breaker and it does not require an additional external power supply.

Operating Principle

The ground-fault current is calculated or measured according to the circuit breaker configuration, as shown

in the following table.

Ground-fault protection is based on the true RMS current of phases and neutral, up to harmonic 15.

In order to trip on an intermittent fault, the control unit accumulates the intermittent currents in the ground-

fault tripping range that do not last long enough to trigger a trip. This accumulation leads to shorter tripping

times than those set.

Setting the Protection

Ground-fault protection can be enabled or disabled.

The ground-fault protection settings are:

Ig enable

Ig ground-fault protection threshold

tg ground-fault protection time delay

Ground-fault protection curve (I²t ON or I²t OFF)

They can be set as follows:

On the Micrologic X display screen, at Home → Protection → I Ground Fault

With Ecoreach software

Circuit breaker configuration Ig ground-fault current

3P Ig = I1 + I2 + I3

4P Ig = I1 + I2 + I3 + IN

3P + ENCT Ig = I1 + I2 + I3 + IN (ENCT)

3P or 4P + SGR Ig = ISGR

The ground-fault protection threshold Ig sets the level of ground-fault current at which

the circuit breaker trips when reaching the ground-fault protection time delay tg.

The time delay tg sets the length of time during which the circuit breaker carries a

ground-fault within the ground-fault protection threshold Ig range.

The time delay tg can be adjusted to:

Four setting values with I²t ON. In this case, the tripping curve is an inverse time

curve up to 2 x Ir, meaning that the time delay decreases as the current increases.

Above 2 x Ir, the tripping curve is a definite time curve with a constant tripping time.

Five setting values with I²t OFF. In this case, the tripping curve is a definite time

curve with a constant tripping time.

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DOCA0102EN-00 05/2016 73

With Masterpact MTZ mobile App

By sending a setting command using the communication network. This function is password-protected.

The ground-fault protection can be duplicated when dual settings are activated

(see page 78)

Protection Settings

The default tg time delay setting value is 0 s with I²t OFF.

Testing the Protection

Test the operation of ground-fault protection as follows:

Zone Selective Interlocking (ZSI)

The ZSI characteristics and external wiring of the zone selective interlocking function, are described

specifically

(seepage80)

If ZSI IN is not set to 1(open circuit between Z3 and Z4 terminals), the maximum breaking time is 0.08 s

regardless of the tg setting value.

When ZSI IN is set to 1 and connected to the ZSI OUT of a downstream device (or when ZSI is not used,

there is a jumper between the Z3 and Z4 terminals), the tg time delay is used.

The Ig pick up activates ZSI OUT (Z1 and Z2 terminals).

NOTE: Masterpact MTZ circuit breakers are delivered with a jumper installed between Z3 and Z4.

Predefined Events

The function generates the following predefined events:

Predefined events cannot be modified by the user. For general information on events, refer to Event

Management

(see page 163)

Setting Unit Range Step Factory setting Accuracy

Ig enable – ON / OFF – ON –

Ig threshold A 0.2–1 x In 0.1 x In10.2 x In +/– 10%

1 Finer resolution settings are possible with Ecoreach software and Masterpact MTZ mobile App

Setting Unit Setting Value

tg with I²t OFF s 0 0.1 0.2 0.3 0.4

tg with I²t ON s – 0.1 0.2 0.3 0.4

Non-tripping time s > 0.02 > 0.08 > 0.14 > 0.23 > 0.36

Maximum breaking time s < 0.08 < 0.14 < 0.20 < 0.32 < 0.50

Step Action

1 Check that the circuit breaker is closed and the control unit is supplied with power (ready LED is

flashing).

2 Press the test button (T) on the front face of the Micrologic X control unit. This action is recorded as an

event.

3 The circuit breaker trips. An event is generated.

4 If the circuit breaker does not trip, an event is generated. Contact your field service representative.

Event History Severity

Ig trip Trip High

I∆n/Ig test trip Trip High

Ig start Protection Low

Ig operate Protection Medium

I∆n/Ig test button pressed Diagnostic Low

I∆n/Ig test trip failed Diagnostic High

Protection Functions

74 DOCA0102EN-00 05/2016

Earth-Leakage Protection (ANSI Code 50G/51G)

Presentation

Earth-leakage protection is a protection against earth fault with a very high sensitivity. It is generally used

in TT or IT earthing systems but could also be used in TN earthing systems in some circumstances. Earth-

leakage protection is a residual current protection based on current measured by a rectangular sensor

encompassing the three phases or the three phases and neutral. Micrologic 7.0 X earth-leakage protection

with VPS module complies with IEC 60947-2 Annex B. It is a type A residual-current device (RCD).

Availability

Earth-leakage protection is available on:

Micrologic 7.0 X control units connected to an external rectangular sensor

3-pole and 4-pole circuit breakers

The external rectangular sensor is required to measure the residual current.

The VPS voltage power supply module is delivered with Micrologic 7.0 X control units to supply power to

the control unit in case of a low level fault and no load, where the power supply based on current flowing

through the circuit breaker is not high enough.

The VPS is mandatory to comply with IEC 60947-2 Annex B.

Operating Principle

Setting the Protection

The earth-leakage protection settings are:

IΔn earth-leakage protection threshold

tΔn earth-leakage protection time delay

They can be set as follows:

On the Micrologic X display screen, at Home → Protection → I Earth Leakage

With Ecoreach software

With Masterpact MTZ mobile App

By sending a setting command using the communication network.

Protection Settings

Testing the Protection

Test the operation of earth-leakage protection as follows:

Earth-leakage protection is definite time.

The earth-leakage protection threshold IΔn sets the level of earth-leakage at which the circuit breaker

trips when reaching the earth-leakage protection time delay tΔn.

Setting Unit Range Step Factory setting

IΔn threshold A 0.5 – 30 0.1 0.5

Setting Unit Setting Value

tΔn time delay s 0.06 0.15 0.23 0.35 0.80

Non-tripping time s > 0.06 > 0.15 > 0.23 > 0.35 > 0.80

Maximum breaking time s < 0.14 < 0.23 < 0.35 < 0.80 < 1.00

Step Action

1 Check that the circuit breaker is closed and the control unit is supplied with power (ready LED is

flashing).

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DOCA0102EN-00 05/2016 75

Predefined Events

The function generates the following predefined events:

Predefined events cannot be modified by the user. For general information on events, refer to Event

Management

(see page 164)

2 Press the test button (T) on the front face of the Micrologic X control unit. This action is recorded as an

event.

3 The circuit breaker trips. An event is generated.

4 If the circuit breaker does not trip, an event is generated. Contact your field service representative.

Step Action

Event History Severity

IΔn trip Trip High

I∆n/Ig est trip Trip High

IΔn start Protection Low

IΔn operate Protection Medium

I∆n/Ig test button pressed Diagnostic Low

I∆n/Ig test trip failed Diagnostic High

Protection Functions

76 DOCA0102EN-00 05/2016

Neutral Protection

Presentation

A long time overcurrent protection function is dedicated to the neutral protection.

Availability

Neutral protection is available on:

Micrologic 2.0 X, 5.0 X, 6.0 X, and 7.0 X control units

3-pole circuit breakers with the ENCT option (External Neutral Current Transformer) to measure the

neutral current

4-pole circuit breakers

Description

Where the cross-sectional area of the neutral conductor is at least equivalent to that of the phase

conductor, and the current in the neutral is expected not to exceed the value in the phase conductor, it is

not necessary to provide overcurrent protection for the neutral conductor.

The neutral conductor must have protection against short-circuit current if:

The cross-sectional area of the neutral conductor is less than the cross-sectional area of the phase

conductors

Non-linear loads generating third order harmonics (or multiples thereof) are installed

It may be necessary to switch off the neutral for operational reasons (multiple source diagram) or safety

reasons (working with power off).

To summarize, the neutral conductor can be:

Non-distributed (3-pole circuit breaker)

Distributed, not switched off and not protected (3-pole circuit breaker)

Distributed, not switched off but protected (3-pole circuit breaker with ENCT option)

Distributed, switched off and protected (4-pole circuit breaker)

Micrologic X control units are suitable for all protection types. They incorporate the OSN (Oversized

Neutral) function, which manages protection of the neutral conductor when third-order harmonic currents

(and multiples thereof) are present.

Operating Principle

Circuit Breaker Possible Types Neutral Protection

3-pole circuit breaker 3P, 3D Off

3-pole circuit breaker with ENCT

option

3P, 3D Off

3P, 3D + N/2 Half neutral

3P, 3D + N Full neutral

3P, 3D + OSN Oversized neutral

4-pole circuit breaker 4P, 3D Off

4P, 3D + N/2 Half neutral

4P, 4D Full neutral

4P, 4D + OSN Oversized neutral

P: Pole, D: Control unit, N: Neutral protection

Neutral protection has the same characteristics as phase protection:

Its threshold is proportional to the long-time protection threshold Ir.

It has the same tr time delay values as long-time protection.

Its short-time and instantaneous protections are identical.

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DOCA0102EN-00 05/2016 77

Declaring the External Neutral Current Transformer (ENCT) on 3-Pole Circuit Breakers

On 3P circuit breakers the ENCT option must be declared in one of the following ways:

On the Micrologic X display screen, at Home → Configuration → Measures → System Type → ENCT

With Ecoreach software

With Masterpact MTZ mobile App

By sending a setting command using the communication network. This function is password-protected.

Setting the Neutral Protection for 3-Pole and 4-Pole Circuit Breakers

Set the type of neutral protection in one of the following ways:

On the Micrologic X display screen, at Home → Protection → Neutral

With Ecoreach software

With Masterpact MTZ mobile App

By sending a setting command using the communication network. This function is password-protected.

The table below shows the setting values of the neutral long-time protection and threshold for the type of

neutral protection selected:

Neutral protection type Neutral long-time threshold value

OFF No long-time protection for neutral

0.5 Ir/2

1Ir

OSN 3-pole (ENCT) 1.6 x Ir

4-pole 1.6 x Ir limited to In

Protection Functions

78 DOCA0102EN-00 05/2016

Dual Settings

Presentation

Dual settings function consists of two sets of parameters on the following protections, according to the type

of Micrologic X control unit:

Long-time overcurrent protection

Short-time overcurrent protection

Instantaneous overcurrent protection

Ground-fault protection

The user may switch from one set to the other under certain operating conditions. A typical application is

to adjust short-circuit protection when the circuit breaker can be supplied by two sources with very different

short-circuit currents. For example, the circuit breaker is supplied by either the grid or a generator.

Availability

The dual settings function is available on Micrologic 2.0 X, 5.0 X, 6.0 X, 7.0 X.

Operating Principle

When the dual settings function is enabled, two sets of protection parameters are available:

Set A corresponds to the settings currently selected

Set B is a new set of protection parameters, which can be set as described in Setting the Function

(see page 78)

Set B is activated as follows:

On the Micrologic X display screen at Home → Maintenance → Switch to other set → Switch to set B.

By sending a setting command using the communication network. For more information refer to the

Masterpact MTZ - Modbus Communication Guide

By a digital input provided by IO module. For more information refer to the

IO Input/Output Application

Module for One Circuit Breaker - Instruction Sheet

Without an external command, Ir, tr, Isd, tsd, Ii, Ig, and tg settings are those of Set A.

When the Activate Set B external command is sent, the Ir, tr, Isd, tsd, Ii, Ig, and tg settings switch to those

of Set B.

When the Dual settings function is enabled, the settings on the display screen are marked _A or _B.

Activating Set B generates a low-level event, B curve active, which is logged in the protection history.

Setting the Function

The Set A protection parameters are set as follows:

On the Micrologic X display screen, at Home → Protection

With Ecoreach software

With Masterpact MTZ mobile App

By sending a setting command using the communication network. This function is password-protected.

The Set B protection parameters are set as follows:

On the Micrologic X display screen, at Home → Protection → Dual Settings

With Ecoreach software

With Masterpact MTZ mobile App

By sending a setting command using the communication network. This function is password-protected.

Function Settings

Function Settings Factory settings Setting range Micrologic X version

Dual settings Activation NO YES/NO Micrologic 2.0 X,

5.0 X, 6.0 X, 7.0 X

Mode Local HMI Local HMI

Module IO

Remote Ctrl

Micrologic 2.0 X,

5.0 X, 6.0 X, 7.0 X

Long-time Set B Ir 1 x In Same as set A Micrologic 2.0 X,

5.0 X, 6.0 X, 7.0 X

tr 0.5 s Same as set A

Short-time Set B Isd 1.5 Ir Same as set A Micrologic 2.0 X,

5.0 X, 6.0 X, 7.0 X

tsd 0 Same as set A

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DOCA0102EN-00 05/2016 79

Instantaneous Set B Ii mode ON Same as set A Micrologic 5.0 X,

6.0 X, 7.0 X

Ii type Standard Same as set A

Ii value 1.5 In Same as set A

Ground-fault Set B Ig mode ON Same as set A Micrologic 6.0 X

Ig 0.2 Same as set A

tg 0 Same as set A

Function Settings Factory settings Setting range Micrologic X version

Protection Functions

80 DOCA0102EN-00 05/2016

Zone Selective Interlocking (ZSI)

Presentation

Zone-selective interlocking (ZSI), also called zone restraint, is a system designed to reduce the stress on

electrical distribution equipment during short-circuit or ground-fault conditions.

ZSI works with a previously coordinated distribution system to limit fault stress on the system by reducing

the time it takes to clear the fault while maintaining system coordination between overcurrent and ground-

fault protective devices.

ZSI allows Micrologic X control units to communicate with each other so that a short-circuit or ground-fault

can be isolated and cleared by the nearest upstream circuit breaker with no intentional time delay. Devices

in all other areas of the system (including upstream) remain closed to maintain service to unaffected loads.

Without ZSI, a coordinated system results in the circuit breaker closest to the fault clearing the fault, but

usually with an intentional delay. With ZSI, the device closest to the fault ignores its preset short-time and

ground-fault delays and clears the fault with no intentional delay.

Zone-selective interlocking eliminates intentional delay without sacrificing coordination and it results in

faster tripping times. This limits fault stress by reducing the amount of let-through energy the system is

subjected to during an overcurrent.

The use of ZSI does not cause circuit breakers that are not coordinated (due to improper settings) to

coordinate.

Availability

Zone-selective interlocking is available on Micrologic 5.0 X, 6.0 X, and 7.0 X control units.

For more information on compatibility and hard wiring, refer to the

ZSI Instruction Sheet.

Masterpact circuit breakers with ZSI capability are shipped with self-restraint jumpers installed. Self-

restraint jumpers must be in place unless zone selective interlocking is activated. If jumpers are removed

and zone selective interlocking is not activated, the circuit breaker ignores its programmed delay and trips

with no intentional delay.

Operating Principle

A pilot wire interconnects a number of circuit breakers equipped with Micrologic X control units, as

illustrated in the following diagram.

The control unit detecting a fault sends a signal upstream and checks for a signal arriving from

downstream. If there is a signal from downstream, the circuit breaker remains closed for the full duration

of its tripping delay. If there is no signal from downstream, the circuit breaker opens immediately,

regardless of the tripping-delay setting.

Fault 1: Only circuit breaker A detects the fault. Because it receives no signal from downstream, it opens

immediately, regardless of its tripping delay set to 0.3.

Fault 2: Circuit breakers A and B detect the fault. Circuit breaker A receives a signal from circuit breaker B

and remains closed for the full duration of its tripping delay, set to 0.3. Circuit breaker B does not receive

a signal from downstream and opens immediately, in spite of its tripping delay set to 0.2.

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DOCA0102EN-00 05/2016 81

NOTE: On device A, the tsd and tg tripping delays must not be set to zero because this would make

selectivity impossible.

Setting the Function

The following settings can be assigned to the ZSI input:

Ground-fault protection (Micrologic 6.0 X)

Short-time overcurrent protection

Both protections (factory setting)

Setting changes can be made as follows:

With Ecoreach software

By sending a setting command using the communication network. This function is password-protected.

Predefined Events

The function generates the following event:

Connection Principles

The figure below explains how the signal wire is connected to the Micrologic X control unit:

Q1 Upstream circuit breaker

Q2 Circuit breaker to be wired

Q3 Downstream circuit breaker

Z1 ZSI-OUT source

Z2 ZSI-OUT

Z3 ZSI-IN source

Z4 ZSI-IN

tsd = 0.3

tsd = 0.2

Fault 1

Fault 2

Upstream

circuit breaker

Downstream

circuit breaker

Event History Severity

ZSI test Diagnostic Low

3Q2Q1Q

Protection Functions

82 DOCA0102EN-00 05/2016

NOTE: When ZSI is not used downstream, short circuit inputs Z3 and Z4. The setting of the short-time and

ground-fault protection time delays can be inhibited if this principle is not applied.

Multi-Source Distribution

If a number of circuit breakers are installed upstream (multi-source distribution), the same principles apply.

NOTE: Management of this configuration does not require any additional relays to ensure that ZSI is

controlled for the sources used.

Connection Wire Characteristics

The table below indicates the characteristics of the inter-device signal wire:

ZSI Interface Module

For more information about the ZSI Interface module, refer to the

ZSI Interface Module Instruction Sheet.

Testing the ZSI Function

The ZSI function can be tested using Ecoreach software, as follows:

tsd = 0.3 tsd = 0.3

tsd = 0.2

tsd = 0.1

Characteristics Values

Impedance 2.7 Ω per 300 m

Maximum length 300 m

Type of cable Shielded twisted (Belden 8441 or equivalent)

Permissible conductor cross-section 0.4–2.5 mm2

Interconnection limit on inputs Z3 and Z4 (to downstream

devices)

15 devices

Interconnection limit on outputs Z1 and Z2 (to upstream

devices)

5 devices

Step Action Result

1 Use Ecoreach to test the tripping time of short-time

overcurrent protection and/or ground-fault protection of

upstream Masterpact MTZ with a jumper between Z3 - Z4

The tripping time should be equal to tsd

and/or tg

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DOCA0102EN-00 05/2016 83

2 Use Ecoreach to test the tripping time of short-time

overcurrent protection and/or ground-fault protection of

downstream Masterpact MTZ

The tripping time should be equal to tsd

and/or tg

3 Remove Jumper between Z3-Z4 of upstream

Masterpact MTZ and connect wiring from downstream

Masterpact MTZ Z1-Z2.

–

4 Test wiring between downstream Masterpact MTZ and

upstream Masterpact MTZ by using Ecoreach connected

to downstream Masterpact MTZ

The trip cause indication LEDs of the

upstream Masterpact MTZ blink

Step Action Result

Protection Functions

84 DOCA0102EN-00 05/2016

Setting G uidelines

Section 3.3

Setting Guidelines

What Is in This Section?

This section contains the following topics:

Topic Page

Protection Setting Guidelines 85

Setting the Long-Time Overcurrent Protection (L or ANSI Code 49RMS) 87

Setting the Short-Time Overcurrent Protection (S or ANSI Code 51) 90

Setting the Instantaneous Overcurrent Protection (I or ANSI Code 50) 92

Selectivity 93

Protection Functions

DOCA0102EN-00 05/2016 85

Protection Setting Guidelines

Presentation

The setting of overcurrent protection relies on installation short-circuit and fault calculation. The setting

guideline cannot replace this calculation.

Masterpact MTZ circuit breakers with Micrologic X control units offer setting flexibility to ensure the

required overcurrent protection whilst maintaining selectivity and stability on transient phenomena when

necessary.

For each circuit, the installation designer needs to provide the following:

Iz: continuous current capacity of the circuit

Ifault min: minimum fault current at the end of the circuit depending on earthing system

Tmax short-circuit: maximum time for maximum short-circuit current

Guidelines are given for the following settings:

Ir: long-time overcurrent protection threshold

tr: long-time overcurrent protection time delay

Isd: short-time overcurrent protection threshold

tsd: short-time overcurrent protection time delay

Overcurrent Protection Setting Guidelines by Application

The following table gives the guidelines for overcurrent protection setting by application:

Application Micrologic 2.0 X Micrologic 5.0 X, 6.0 X, 7.0 X1

Secondary side of MV/LV transformer

(switchboard main incomer) with other

Masterpact or Compact NS 630–

3200 A downstream as feeder

Ir = Iz

tr ≤ 24 s

Isd ≤ Ifault min

No selectivity possible with feeders

except Compact NSX

Ir = Iz

tr ≤ 24 s

Isd ≤ Ifault min

tsd < Tmax short-circuit

tsd > tsd of downstream Masterpact or

Compact NS 630–3200 A

Ii enable: OFF

Secondary side of MV/LV transformer

(switchboard main incomer) without

other Masterpact or Compact

NS 630–3200 A downstream as

feeder

Ir = Iz

tr ≤ 24 s

Isd ≤ Ifault min

Ir = Iz

tr ≤ 24 s

Isd ≤ Ifault min

tsd = 0

Ii enable: ON

Ii mode: Standard

Ii = Isd

Generator output

with other Masterpact or Compact

NS 630–3200 A downstream as

feeder

Ir = Iz

tr ≤ 1 s

Isd ≤ Ifault min

No selectivity possible with feeders

except Compact NSX

Ir = Iz

tr ≤ 1 s

Isd ≤ Ifault min

tsd > tsd of downstream Masterpact or

Compact NS 630–3200 A

Ii enable: OFF

Generator output

without other Masterpact or Compact

NS 630–3200 A downstream as

feeder

Ir = Iz

tr ≤ 1 s

Isd ≤ Ifault min

Ir = Iz

tr ≤ 1 s

Isd ≤ Ifault min

tsd = 0

Ii enable: ON

Ii mode: Standard

Ii = Isd

Feeder with other Masterpact or

Compact NS 630–3200 A

downstream

Ir = Iz

tr ≤ 16 s

Isd ≤ Ifault min

No selectivity possible except with

Compact NSX

Ir = Iz

tr ≤ 16 s

Isd ≤ Ifault min

tsd > tsd of downstream circuit

breaker

Ii enable: OFF

1 Ground-fault protection and earth-leakage protection depend on the earthing system and local regulations. As a

general rule ground-fault and earth-leakage sensitivity should be as low as possible without being disturbed by

permanent or transient leakage current.The ground-fault and earth-leakage time delay ensures selectivity with

downstream devices.

Protection Functions

86 DOCA0102EN-00 05/2016

Feeder without other Masterpact or

Compact NS 630–3200 A

downstream as feeder

Ir = Iz

tr ≤ 16 s

Isd ≤ Ifault min

Ir = Iz

tr ≤ 16 s

Isd ≤ Ifault min

tsd = 0

Ii enable: ON

Ii mode: Standard

Ii = Isd

Power electronic (for example,

uninterruptible power supplies,

variable speed drives, photovoltaic

inverters) with no other circuit breaker

downstream

Ir = Iz

tr ≤ 8 s

Isd ≤ Ifault min

Ir = Iz

tr ≤ 16 s

Isd ≤ 1.5–2 x Ir

tsd = 0

Ii enable: ON

Ii mode: Fast

Ii = 2–3 x In

Application Micrologic 2.0 X Micrologic 5.0 X, 6.0 X, 7.0 X1

1 Ground-fault protection and earth-leakage protection depend on the earthing system and local regulations. As a

general rule ground-fault and earth-leakage sensitivity should be as low as possible without being disturbed by

permanent or transient leakage current.The ground-fault and earth-leakage time delay ensures selectivity with

downstream devices.

Protection Functions

DOCA0102EN-00 05/2016 87

Setting the Long-Time Overcurrent Protection (L or ANSI Code 49RMS)

Setting Guidelines for Ir

The Ir setting depends on the maximum expected current flow through the breaker and the maximum

current that can be withstood by the protected equipment (for example, cables, busbars, generators, and

transformers).

The installation rules, such as IEC 60364 Chapter 4.43 or similar national standards, require overload

protection for conductors as follows:

Ib Maximal load current

Ir Long time protection setting

Iz Continuous current-carrying capacity of the circuit

I2 Conventional operating current of the circuit breaker = 1.2 x Ir for Schneider Electronic control unit

I(A) Current through circuit breaker (phase(s) or neutral)

Setting Guidelines for tr

The tr setting depends on the maximum duration at maximum current and the maximum current that can

be withstood by the protected equipment (for example, cables, busbars, generators, and transformers).

Thermal memory: As described in long-time overcurrent protection

(see page 65)

, this protection function

is an overcurrent time-dependent protection with thermal memory. It operates as a thermal image, using

the heating and cooling model of a conductor. It can be considered as a first order thermal model with one

heating time constant.

The following table shows the relationship between the tr setting and the thermal time constant of the first

thermal model:

Summary of tr Setting Guidelines by Application

The following table gives the tr setting guidelines by application:

lb lr lz l (A)

1,45x lz

= 1,2 lr <= 1,45 lz

tr setting (s) Unit 0.5 124812 16 20 24

Equivalent time constant for

heating and cooling when control

unit is energized

seconds 14 28 56 112 224 335 447 559 671

minutes – – – – 3.5 5.6 7.5 9.3 11.2

Time constant for cooling when

control unit is not energized

minutes 5

Application Principle Usual value

Secondary side of MV/LV transformer

(switchboard main incomer)

Tie circuit breaker between two

switchboards

Tripping time according to circuit

thermal withstand for busbars, busbar

trunking, cable > 240 mm2:

Time constant > 11 min

tr = 24 s

When smaller cables are used in

parallel, a lower setting should be

used.

tr ≤ 24 s

Protection Functions

88 DOCA0102EN-00 05/2016

Example of tr setting according to the application:

A Generator thermal limit

B Cable thermal limit

C Protection setting generator tLT (minimum notch)

D Protection setting cable tLT (maximum notch)

Neutral Protection Setting Guidelines

Some indications for setting neutral protection is given here. For more information refer to the neutral

protection section

(see page 76)

The following table indicates the long-time protection settings according to the neutral cable cross section:

Generators tr ≤ 1 s in order to achieve tripping

time < 30 s for 1.5 x Ir (IEC 60034-1

Clause 9.3.2)

tr ≤ 1 s

Feeder (cable or busbar trunking

protection)

Tripping time according to circuit

thermal withstand for busbars, busbar

trunking, cable > 240 mm2:

Time constant >11 min

tr = 24 s

To achieve selectivity with incomer, it

can be useful to reduce tr.

≤ 24 s for busbar trunking or cable

≥240 mm²

≤ 16 s for lower cross section

cables

Primary side of LV/LV transformer According to cable or busbar trunking

withstand (transformer withstand is

generally higher)

To achieve selectivity with incomer, it

can be useful to reduce tr.

≤ 24 s for busbar trunking or cable

≥240 mm²

≤ 16 s for lower cross section

cables

Power electronic (for example,

uninterruptible power supplies,

variable speed drives, photovoltaic

inverters)

Ir = Iz

tr ≤ 16 s

Isd ≤ Ifault min

≤ 24 s for busbar trunking or cable

≥240 mm²

≤ 16 s for lower cross section

cables

Motors If motor is protected against overload

by a separate relay, long time setting

is done according to circuit thermal

withstand.

If the Micrologic ensures also motor

thermal overload, motor class must be

taken in consideration.

= 12 s for a feeder

≥ 8 s for a class 10 motor

≥ 12 s for a class 20 motor

≥ 16 s for a class 30 motor

Application Principle Usual value

= In l

l3 Ir

Cross-sectional area of neutral

conductor

Harmonics

expected

Neutral protection

setting

Long-time protection

Less than cross-sectional area

of phase conductors

No 0.5 Ir is set according to Iz of cable, Ir applied to

neutral is divided by 2

Protection Functions

DOCA0102EN-00 05/2016 89

NOTE: On 3-pole circuit breakers the ENCT option must be declared.

NOTE: In IT systems, a distributed neutral conductor must be protected. (0.5, 1 or OSN position)

Equal to cross-sectional area of

phase conductors

No OFF No harmonics expected: the protection of

neutral is not necessary

Yes 1 Harmonics expected: the neutral must be

protected by the long-time protection, set as for

the phase protection

Greater than cross-sectional

area of phase conductors

No OFF No harmonics expected: the protection of

neutral is not necessary

Yes Oversized neutral Harmonics expected: the neutral must be

protected by the long-time protection, set as for

the phase protection multiplied by 1.6 (OSN)

Cross-sectional area of neutral

conductor

Harmonics

expected

Neutral protection

setting

Long-time protection

Protection Functions

90 DOCA0102EN-00 05/2016

Setting the Short-Time Overcurrent Protection (S or ANSI Code 51)

Settings Guideline

The Isd and tsd settings ensure that the short-time withstand current of protected equipment is not

exceeded.

Setting Guidelines for Isd

When LV/LV transformers are switched on, very high inrush currents are produced which must be taken

into account when choosing overcurrent protection devices. The peak value of the first current wave often

reaches 10 to 15 times the rated rms current of the transformer and may reach values of 20 to 25 times

the rated current even for transformers rated less than 50 kVA.

Example of inrush current: when transformer is switched on:

A 1st peak 10 to 25 x In

Example of inrush current of direct on line motor when started:

Application Principle Isd usual value

Secondary side of MV/LV transformer

(switchboard main incomer or tie

circuit breaker between two

switchboards)

Lower than minimum short-circuit or ground-

fault current at the end of the protected circuit.

Selectivity with downstream circuit breakers

10 x Ir

Generators Lower than minimum short-circuit or ground-

fault current supplied by the generator.

Selectivity with downstream circuit breakers

2–3 x Ir

Feeder with other Masterpact or

Compact NS 630–3200 A

downstream

Lower than minimum short-circuit or ground-

fault current at the end of the protected circuit.

Selectivity with downstream circuit breakers

10 x Ir

Feeder without other Masterpact or

Compact NS 630–3200 A

downstream

Lower than minimum short-circuit or ground-

fault current at the end of the protected circuit.

Selectivity with downstream circuit breakers

10 x Ir

Primary side of LV/LV transformer Lower than minimum secondary short-circuit

current.

10 x Ir

Power electronic (for example,

uninterruptible power supplies,

variable speed drives, photovoltaic

inverters)

Lower than minimum short-circuit or ground-

fault current at the end of the protected circuit.

Lower setting possible as no selectivity or

transient current is expected.

1.5–2 x Ir

Motors Lower than minimum short-circuit or ground-

fault current at the end of the protected circuit.

Lower setting possible above starting current.

10 x Ir

Id (5 – 8 In)

10 – 20 ms t

(1 – 10 s)

Protection Functions

DOCA0102EN-00 05/2016 91

Setting Guidelines for tsd

tsd is set according to selectivity.

Time-based selectivity is ensured between two circuit breakers when the supply side circuit breaker short-

time delay is at least one step higher than the load side short-time delay.

When downstream circuit breakers are Compact NSX circuit breakers, selectivity is always ensured with

Masterpact MTZ with Micrologic 2.0 X control units, and with Micrologic 5.0 X, 6.0 X and 7.0 X control

units, for all values of tsd.

Short-time tripping time can be definite time type (tripping time is independent of current level) or time

dependent with I2t = constant curve. This function allows the curve to be smoothed for low level

overcurrent, ensuring fast trip at high current. This is recommended for selectivity with fuses.

Application Principle tsd usual value

Secondary side of MV/LV transformer

(switchboard main incomer or tie

circuit breaker between two

switchboards)

Selectivity with downstream circuit

breakers

tsd > tsd of downstream power circuit

breaker (tsd = 0.2 s if installation

includes three levels of power circuit

breaker)

Feeder with selectivity with other

Masterpact MTZ or Compact > 630 A

downstream

Selectivity with downstream circuit

breakers

tsd > tsd of downstream power circuit

breaker (tsd = 0.1 s if installation

includes three levels of power circuit

breaker)

Feeder without selectivity with other

Masterpact MTZ or Compact > 630 A

downstream

No need for delayed short-time

protection

tsd=0s

Primary side of LV/LV transformer Stability during inrush.

Selectivity with downstream circuit

breakers

tsd = 0.1 s or

tsd > tsd of downstream power circuit

breaker, if any

Power electronic (Uninterrupted

power supplies, variable speed

drives, photovoltaic inverters, etc.)

No need for delayed short-time

protection

tsd=0s

Motors Stability during inrush tsd = 0 s or 0.1 s

Protection Functions

92 DOCA0102EN-00 05/2016

Setting the Instantaneous Overcurrent Protection (I or ANSI Code 50)

Settings Guideline

Rules for Isd also apply to the Ii threshold.

Isd is set below the minimum value of short-circuit current and ground-fault in protected equipment:

Ii setting allows normal transient overcurrent inrush current for transformers:

A 1st peak 10 to 25 x In

Motor direct on line starting current:

Application Principle Usual value

Secondary side of MV/LV transformer

(switchboard main incomer)

Selectivity with downstream circuit

breakers

Ii enable : OFF if other Masterpact

downstream

Ii = 15 x In if Compact NSX only

downstream

Feeder with selectivity with other

Masterpact or Compact > 630 A

downstream

Same rule as for Isd Ii enable : OFF

Feeder without selectivity with other

Masterpact or Compact > 630 A

downstream

– Ii enable : ON

Ii type : Standard

Ii = 10-15 x In

Primary side of LV/LV transformer – Ii enable : OFF

Generators – Ii enable : OFF

Power electronic (for example,

uninterruptible power supplies,

variable speed drives, photovoltaic

inverters)

Lower than minimum short-circuit or

ground-fault at the end of the

protected circuit. Lower setting

possible as no selectivity or transient

current is expected.

Ii enable : ON

Ii type : Fast

Ii = 2 x In

Motor Lower than minimum short-circuit or

ground-fault at the end of the cable.

Lower setting possible above starting

current.

Ii enable : ON

Ii type : Fast

Ii ≥ 13 x Flc motor

Id (5 – 8 In)

10 – 20 ms t

(1 – 10 s)

Protection Functions

DOCA0102EN-00 05/2016 93

Selectivity

Coordination Between Devices

Coordination between the upstream and downstream devices, especially selectivity, is essential to

optimize continuity of service. The large number of options for setting the protection functions on

Micrologic X control units improves the natural coordination between circuit breakers.

Three selectivity techniques can be used:

Current selectivity, which corresponds to staging of the long-time overcurrent protection threshold.

Time selectivity, which corresponds to staging of the short-time overcurrent protection threshold.

Energy selectivity, which corresponds to staging of the circuit breaker energy levels: this applies for high

intensity short-circuit currents.

Selectivity Rules

The selectivity rules depend on:

The type of control unit on the circuit breakers installed upstream and downstream: electronic or

thermal-magnetic.

The accuracy of the settings.

Selectivity of Overcurrent Protection

For overcurrent protection, the selectivity rules between electronic control units are as follows:

Current and time selectivity:

A ratio of Ir Q1/Ir Q2 greater than or equal to 1.3 is sufficient between the Ir threshold for long-time

protection of the control unit on the upstream circuit breaker Q1 and that of the control unit on the

downstream circuit breaker Q2.

The tr time delay for long-time protection of the control unit on the upstream circuit breaker Q1 is

identical or greater than that of the control unit on the downstream circuit breaker Q2.

A ratio of 1.5 is sufficient between the Isd threshold for short-time protection of the control unit on the

upstream circuit breaker Q1 and that of the control unit on the downstream circuit breaker Q2.

The tsd time delay for short-time protection of the control unit on the upstream circuit breaker Q1 is

greater than that of the control unit on the downstream circuit breaker Q2.

If the upstream circuit breaker is in the I2t off position, the downstream circuit breakers must not be

in the I2t on position.

Energy selectivity is provided by the circuit breaker design and build characteristics. The selectivity limit

can only be guaranteed by the manufacturer.

Ground-Fault Protection Selectivity

For ground-fault protection, only the rules for time selectivity should be applied to the Ig protection

threshold and tg time delay:

A ratio of 1.3 is sufficient between the Ig threshold for ground-fault protection of the control unit on the

upstream circuit breaker Q1 and that of the control unit on the downstream circuit breaker Q2.

The tg time delay for ground-fault protection of the control unit on the upstream circuit breaker Q1 is

greater than that of the control unit on the downstream circuit breaker Q2.

If the upstream circuit breaker is in theI2t off position, the downstream circuit breakers must not be in

theI2t on position.

Protection Functions

94 DOCA0102EN-00 05/2016

Selectivity Limit

Depending on the staging of circuit breaker ratings and protection parameter settings, selectivity can be:

Limited (partial selectivity) up to a value lower than the maximum expected short-circuit current.

Total (total selectivity), performed irrespective of the value of the short-circuit current.

Selectivity Table

Schneider Electric provides selectivity tables showing the type of selectivity (partial or total) between each

circuit breaker for its entire range of circuit breakers (refer to the

Complementary Technical

Information Catalog

I2t ON/OFF Function

Use the I2t inverse time curve function to improve circuit breaker coordination. Use it when a protection

device using inverse time only is installed upstream or downstream, for example a fuse protection device.

I2t OFF I2t ON

t(s)

gG - 250 A

NS800N - Micrologic 5.0 A - 800 A

I (A)

t(s)

gG - 250 A

NS800N - Micrologic 5.0 A - 800 A

I (A)

DOCA0102EN-00 05/2016 95

Micrologic X

Metering Functions

DOCA0 102EN-00 05/2016

Metering Fu nctions

Chapter 4

Metering Functions

What Is in This Chapter?

This chapter contains the following sections:

Section Topic Page

4.1 Standard Metering Functions 96

4.2 Optional Metering Functions 129

Metering Functions

96 DOCA0102EN-00 05/2016

Standard Metering Fun ctions

Section 4.1

Standard Metering Functions

What Is in This Section?

This section contains the following topics:

Topic Page

Measurement Accuracy in Accordance with IEC 61557-12 97

Measurement Characteristics 102

Measurement Availability 107

Network Settings 113

Real-Time Measurements 114

Power Metering 117

Power Calculation Algorithm 120

Energy Metering 121

Harmonic Currents and Voltages 123

Power Quality Indicators 124

Power Factor PF and cos ϕ Measurement 126

Metering Functions

DOCA0102EN-00 05/2016 97

Measurement Accuracy in Accordance with IEC 61557-12

Measurements and Electrical Parameters Available on the Micrologic X Control Unit

Based on the measurement of line currents, neutral current, phase-to-phase voltages, and phase-to-

neutral voltages, the Micrologic X control unit displays the following parameters:

RMS values of currents and voltages

Active, reactive, and apparent powers

Active, reactive, and apparent energies

Power factor

Frequency

Unbalance and THD of voltages and currents

Average and predicted values are calculated for the main basic electrical parameters.

The maximum and minimum values are time stamped and logged in the Micrologic X non-volatile memory.

They can be reset as follows:

On the Micrologic X display screen

With Ecoreach software

With the Masterpact MTZ mobile App

By a remote controller using the communication network

Electrical parameters, which are refreshed once a second, can be displayed as follows:

On the Micrologic X display screen, at Home → Measures

(see page 45)

With Ecoreach software

With the Masterpact MTZ mobile App

By a remote controller using the communication network

The availability of parameters depends on the type of interface used to display data. All parameters are not

displayed on all interfaces

(see page 107)

An optional external 24 Vdc supply or VPS module is mandatory to measure and display parameters,

including energy counters, for currents below 20% of the rated current.

Measurement Accuracy

Power and energy metering accuracy in Masterpact MTZ with Micrologic X control unit is classified as

Class 1, according to IEC 61557-12. This standard specifies performance requirements of measuring and

monitoring devices that measure and monitor the electrical parameters within electrical distribution

systems. It covers both performance measuring devices with external sensors (PMD-S), such as current

and/or voltage transformers, for example, stand-alone power meters, and performance measuring devices

with embedded sensors (PMD-D), for example, circuit breakers.

Masterpact MTZ, with Micrologic X control unit and embedded sensors, is a PMD-DD device with Class 1

accuracy, according to IEC 61557-12 for power and energy metering. It complies with the requirements of

K70 temperature class, according to table 6 of IEC 61557-12.

The IEC 61557-12 standard defines the following three levels of uncertainty that need to be checked to

establish accuracy class:

Intrinsic uncertainty

(see page 98)

Operating uncertainty

(see page 99)

Overall system uncertainty

(see page 100)

A PMD-DD device avoids overall system uncertainty and variation, thanks to its embedded sensors and

wiring.

Measured Electrical Parameter Uncertainty

Uncertainty is the estimated percentage by which a measured electrical parameter may differ from the true

electrical parameter. In the context of this standard, the total uncertainty of a measured electrical

parameter depends on the instrument, the environment, and other elements to be considered.

The graphic below shows the total uncertainty of a measured electrical parameter made by:

 A PMD-D device, with embedded sensors

 A PMD-S device, with external sensors

Metering Functions

98 DOCA0102EN-00 05/2016

Intrinsic Uncertainty: IEC 61557-12 definition

Intrinsic uncertainty is the uncertainty of a measuring instrument when used under reference conditions. In

the context of this standard, it is a percentage of the measured electrical parameter defined within the rated

range of the measuring instrument.

For Masterpact MTZ with Micrologic X control unit, the main values are current and power factor.

The following table indicates the current range for different Masterpact MTZ circuit breakers, to ensure

uncertainty is less than or equal to 1%:

PMD-D device, with embedded sensors PMD-S device, with external sensors

A Uncertainty under reference conditions: Intrinsic uncertainty according to IEC 61557-12

B Variations due to influence quantity: Operating Uncertainty according to IEC 61557-1;

Measurement uncertainty according to IEC 61000-4-30

C Overall system uncertainty according to IEC 61557-12

Current values for active power with 1% uncertainty (in A) Masterpact

Description of current value Current value

as percentage

of maximal

load current

MTZ1 MTZ2 MTZ3

Lowest value of the current at which the circuit

breaker starts and continues to register

Ist = 0.04% Ib 1.6 A 1.6 A 3.2 A

Lowest value of the current to ensure accuracy

less than or equal to 1.5% for active power and

energy

5% Ib 20 A 20 A 40 A

Lowest value of the current to ensure accuracy

less than or equal to 1% for active power and

energy with PF = 1

10% Ib 40 A 40 A 80 A

Lowest value of the current to ensure accuracy

less than or equal to 1% for active power and

energy with PF = 0.5 Ind to 0.8 Cap

20% Ib 80 A 80 A 160 A

Value of current in accordance with which the

relevant performance of a direct connected PMD

(PMD Dx) is fixed

Ib 400 A 400 A 800 A

Highest value of current at which the

Masterpact MTZ meets the uncertainty

requirements of this standard

Imax 1600 A x 1.2 4000 A x 1.2 6300 A x 1.2

Metering Functions

DOCA0102EN-00 05/2016 99

Intrinsic uncertainty for active power and energy versus current. Example graph for Masterpact MTZ2

Operating Uncertainty

IEC 61557-12 defines operating uncertainty as uncertainty under the rated operating conditions.

IEC 61557-12 specifies tests and maximum variation of uncertainty according to the following influence

quantities:

Ambient temperature (T°)

Frequency, unbalance, harmonics, EMC

For Masterpact MTZ with Micrologic X control unit, the main influence quantity is temperature.

Masterpact MTZ devices are designed to carry high currents, which induce self-heating. The measurement

has been designed to offer high stability in a wide range of temperatures.

Effect of Temperature on Masterpact MTZ Measurement System

The temperature variation around the internal current transformer and the Micrologic X control unit,

between minimum current and nominal current load can be up to 90 K. The effect of temperature on

measurement accuracy has been carefully managed to ensure an operating ambient temperature of

between -25 °C and 70 °C (-13 °F and 158 °F).

Masterpact MTZ2

Standard

Out of standard

Istart

Imin 1.5 %

Imin 1 % Out of

range

Current (A)

40201.6 4000

load

Metering Functions

100 DOCA0102EN-00 05/2016

Effect of Electromagnetic Compatibility (EMC) and Other Influence Quantities on Masterpact MTZ Measurement Performance

Masterpact MTZ with Micrologic X control unit offers a high immunity to influence quantities, with a low

operating uncertainty for active power, as specified by Class 1, for a wide range of operating conditions.

The following table summarizes standard requirements and Masterpact MTZ performance with regard to

influence quantities for active power:

Overall System Uncertainty

IEC 61557-12 defines overall system uncertainty as uncertainty including the instrumental uncertainty of

several separated instruments (for example, sensors, wires, measuring instruments) under the rated

operating conditions.

Uncertainty min/max PF 1

Uncertainty min/max PF 0.5

Masterpact MTZ

Standard

Out of standard

-25 -15 -5

-5

-4

-3

-2

-1

50 152535455565

Accuracy (%)

Temperature (°C)

Masterpact MTZ

Influence quantity Table 9 IEC 61557-12 PMD DD Cl 1

additional uncertainty variation tolerance

Masterpact MTZ

additional uncertainty

Ambient temperature PF 1 0.05% / K < 0.01% / K

PF 0.5 Ind 0.07% / K < 0.01% / K

Auxiliary power supply 24 Vdc ±15% 0.1% 0%

Voltage PF 1: 80% / 120% Un 0.7% 0%

PF 0,5 Ind: 80% / 120% Un 1% 0%

Frequency PF 1: 49–51 Hz / 59–61 Hz 0.5% 0%

PF 0.5: 49–51 Hz / 59–61 Hz 0.7% 0%

Reversed phase sequence 1.5% 0%

Voltage unbalance 0 to 10% 2% 0%

Phase missing 1 or 2 phase missing 2% 0%

Harmonics in current and voltage 10% Un 5th 0.8% < 0.1%

20% Imax 5th

Odd harmonic in current 3% < 0.1%

Sub harmonic in current 3% < 0.1%

Common mode voltage rejection 0–690 Vac / ground 0.5% 0%

Permanent ac magnetic induction IEC 61326 2% 0%

Electromagnetic RF fields IEC 61326 2% < 1%

Conducted disturbances induced by

RF fields

IEC 61326 2% < 1%

Schneider Electric IndustrieS NX2TO7 Control Units User Manual Micrologic X Control Unit User Guide 05 2016

Schneider Electric Industrie SAS Control Units Micrologic X Control Unit User Guide 05 2016

Contents

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