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HUAWEI PDU8000 Modular Precision PDC V2.0 User Manual

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User Manual

User Manual - Huawei Technical Support

(EFT). IEC61000-4-4. Surge. IEC61000-4-5. Voltage dip and short interruption ... consists of the MCCB input module, MCB output module, ...

Notice. The purchased products, services and features are stipulated by the contract made between Huawei and the customer. All or part of the products, ...

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PDU8000 Modular Precision PDC V2.0
User Manual

Issue Date

04 2021-04-13

HUAWEI TECHNOLOGIES CO., LTD.

Copyright � Huawei Technologies Co., Ltd. 2021. All rights reserved. No part of this document may be reproduced or transmitted in any form or by any means without prior written consent of Huawei Technologies Co., Ltd.
Trademarks and Permissions
and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd. All other trademarks and trade names mentioned in this document are the property of their respective holders.
Notice The purchased products, services and features are stipulated by the contract made between Huawei and the customer. All or part of the products, services and features described in this document may not be within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information, and recommendations in this document are provided "AS IS" without warranties, guarantees or representations of any kind, either express or implied.
The information in this document is subject to change without notice. Every effort has been made in the preparation of this document to ensure accuracy of the contents, but all statements, information, and recommendations in this document do not constitute a warranty of any kind, express or implied.

Huawei Technologies Co., Ltd.

Address:

Huawei Industrial Base Bantian, Longgang Shenzhen 518129 People's Republic of China

Website:

https://e.huawei.com

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PDU8000 Modular Precision PDC V2.0 User Manual

About This Document

Purpose
This manual describes the precautions and methods for installing, commissioning, and maintaining the modular precision power distribution cabinet (PDC), helping users to quickly understand methods for precision PDC operation and maintenance (O&M).
This document uses a 2000 mm high PDC as an example to describe how to install the PDC and connect cables.
NOTE
The figures provided in this manual are for reference only. The actual product appearances and configurations prevail.

Intended Audience
This document is intended for:
Sales engineers Technical support engineers System engineers Hardware installation engineers Commissioning engineers Data configuration engineers Maintenance engineers

Symbol Conventions

The symbols that may be found in this document are defined as follows.

Symbol

Description
Indicates a hazard with a high level of risk which, if not avoided, will result in death or serious injury.

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PDU8000 Modular Precision PDC V2.0 User Manual
Symbol

About This Document
Description
Indicates a hazard with a medium level of risk which, if not avoided, could result in death or serious injury.
Indicates a hazard with a low level of risk which, if not avoided, could result in minor or moderate injury.
Indicates a potentially hazardous situation which, if not avoided, could result in equipment damage, data loss, performance deterioration, or unanticipated results. NOTICE is used to address practices not related to personal injury.
Supplements the important information in the main text. NOTE is used to address information not related to personal injury, equipment damage, and environment deterioration.

Change History
Changes between document issues are cumulative. The latest document issue contains all the changes made in earlier issues.

Issue 04 (2021-04-13)
Modified the product model description.
Upgraded the software; added the lifecycle management, access control, and twinkle functions. Deleted alarm masking.

Issue 03 (2018-01-25)
Added the 2500 mm high cabinet. Added functional components for fire linkage.

Issue 02 (2017-06-28)
This issue is the first official release.

Issue 01 (2017-05-28)
This issue is used for first office application (FOA).

Issue 04 (2021-04-13)

iii

PDU8000 Modular Precision PDC V2.0 User Manual

Contents

About This Document................................................................................................................ ii
1 User Manual Usage................................................................................................................. 1
2 Safety Precautions...................................................................................................................2
2.1 General Safety Precautions.................................................................................................................................................. 2 2.2 Electrical Safety........................................................................................................................................................................ 3 2.3 Environmental Safety............................................................................................................................................................. 4 2.4 Mechanical Safety................................................................................................................................................................... 4 2.5 Laying Out Cables................................................................................................................................................................... 5
3 Overview....................................................................................................................................6
3.1 Positioning................................................................................................................................................................................. 6 3.2 Product Model.......................................................................................................................................................................... 6 3.3 Appearance................................................................................................................................................................................ 7 3.3.1 Appearance of the Modular Precision PDC with a Single Input.......................................................................... 7 3.3.2 Appearance of the Modular Precision PDC with Dual Inputs............................................................................ 10 3.4 Features.................................................................................................................................................................................... 13 3.5 Technical Specifications...................................................................................................................................................... 14 3.6 Modules.................................................................................................................................................................................... 16 3.6.1 Configuration Description.............................................................................................................................................. 16 3.6.2 Power Distribution Module............................................................................................................................................ 18 3.6.3 Monitoring Module........................................................................................................................................................... 20 3.7 Components............................................................................................................................................................................ 21 3.7.1 MDU....................................................................................................................................................................................... 21 3.7.2 Monitoring Board.............................................................................................................................................................. 25 3.7.3 MCCB..................................................................................................................................................................................... 27 3.7.4 MCB........................................................................................................................................................................................ 27 3.7.5 SPD......................................................................................................................................................................................... 29
4 Acceptance Guide.................................................................................................................. 31
5 Installation Guide..................................................................................................................33
5.1 Site Requirements................................................................................................................................................................. 33 5.2 Installation Preparations.................................................................................................................................................... 33 5.2.1 Obtaining Technical Documents.................................................................................................................................. 34

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Contents

5.2.2 Obtaining Tools and Materials..................................................................................................................................... 34 5.2.3 Checking Personnel Requirements.............................................................................................................................. 37 5.3 Installing the PDC................................................................................................................................................................. 37 5.3.1 Moving the PDC................................................................................................................................................................. 38 5.3.2 Installing the PDC on a Concrete Floor..................................................................................................................... 39 5.3.3 Installing the PDC on an ESD Floor............................................................................................................................ 44 5.4 Installing Cables.................................................................................................................................................................... 45 5.4.1 Cable Routing Rules......................................................................................................................................................... 46 5.4.2 Power Cable Specifications............................................................................................................................................ 49 5.4.3 Preparing Terminals.......................................................................................................................................................... 50 5.4.4 Connecting Cables............................................................................................................................................................. 53 5.4.4.1 Top Cable Routing......................................................................................................................................................... 55 5.4.4.2 Bottom Cable Routing.................................................................................................................................................. 61
6 Commissioning Guide...........................................................................................................68
6.1 Check Before Power-on Commissioning....................................................................................................................... 68 6.2 Power-On Commissioning................................................................................................................................................. 69
7 MDU Commissioning Guide................................................................................................ 72
7.1 UI Appearance........................................................................................................................................................................72 7.2 Menu Hierarchy..................................................................................................................................................................... 73 7.3 Common Functions.............................................................................................................................................................. 74 7.3.1 Historical Alarm................................................................................................................................................................. 75 7.3.2 Branch Output 1/2............................................................................................................................................................ 75 7.4 System Information.............................................................................................................................................................. 76 7.4.1 Running................................................................................................................................................................................. 76 7.4.1.1 Main Input 1/2................................................................................................................................................................ 78 7.4.1.2 Branch Output 1/2......................................................................................................................................................... 80 7.4.1.3 Input 1/2 Curve............................................................................................................................................................... 81 7.4.1.4 Query Energy Yield........................................................................................................................................................ 81 7.4.1.5 Branch 1/2 Temperature Curve................................................................................................................................. 82 7.4.1.6 Branch 1/2 Terminal Temperature Curve............................................................................................................... 82 7.4.1.7 Branch 1/2 Subrack Temperature Curve................................................................................................................ 83 7.4.2 Alarms................................................................................................................................................................................... 83 7.4.2.1 Active Alarm.................................................................................................................................................................... 84 7.4.2.2 Historical Alarm.............................................................................................................................................................. 84 7.4.2.3 Buzzer Off......................................................................................................................................................................... 85 7.4.2.4 Twinkle............................................................................................................................................................................... 86 7.4.3 Settings................................................................................................................................................................................. 86 7.4.3.1 Common Settings...........................................................................................................................................................87 7.4.3.2 Communication Settings............................................................................................................................................. 88 7.4.3.3 System Parameter Settings......................................................................................................................................... 90 7.4.3.4 Branch Parameter Settings......................................................................................................................................... 92 7.4.3.5 Threshold Settings......................................................................................................................................................... 92

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Contents

7.4.3.6 Setting Wizard................................................................................................................................................................. 94 7.4.3.7 Access Control................................................................................................................................................................. 96 7.4.4 Maintenance....................................................................................................................................................................... 98 7.4.4.1 Upgrading Software...................................................................................................................................................... 99 7.4.4.2 Loading Configurations............................................................................................................................................. 102 7.4.4.3 Downloading Configurations................................................................................................................................... 103 7.4.4.4 Downloading Logs.......................................................................................................................................................104 7.4.4.5 Exporting Alarms......................................................................................................................................................... 105 7.4.4.6 Exporting E-labels........................................................................................................................................................105 7.4.4.7 Uploading Modbus Configurations....................................................................................................................... 106 7.4.4.8 Extending Modbus Configurations........................................................................................................................ 107 7.4.4.9 Fault Report................................................................................................................................................................... 107 7.4.4.10 Uploading the CA Certificate and Certificate File.......................................................................................... 108 7.4.4.11 Lifecycle Management............................................................................................................................................ 110 7.4.5 About................................................................................................................................................................................... 110 7.5 Operating Status................................................................................................................................................................. 110 7.6 DIP Switches......................................................................................................................................................................... 111
8 Maintenance Guide............................................................................................................ 113
8.1 Routine Maintenance........................................................................................................................................................ 113 8.2 Alarm Reference..................................................................................................................................................................115 8.3 Troubleshooting.................................................................................................................................................................. 121 8.4 Parts Replacement............................................................................................................................................................. 121 8.4.1 Replacing an SPD Module............................................................................................................................................121 8.4.2 Replacing an Indicator.................................................................................................................................................. 123 8.4.3 Replacing a Common MCB.......................................................................................................................................... 124 8.4.4 Replacing a Hot-Swap MCB........................................................................................................................................ 127 8.4.5 Replacing a Fuse............................................................................................................................................................. 129 8.4.6 Replacing a monitoring board.................................................................................................................................... 133 8.4.7 Replacing an MDU..........................................................................................................................................................134 8.5 Capacity Expansion Settings........................................................................................................................................... 136 8.6 Changing Alias..................................................................................................................................................................... 139
A PDC Silk Screen Description............................................................................................. 141
B PDC Label Description....................................................................................................... 142
C Acronyms and Abbreviations........................................................................................... 144

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1 User Manual Usage

1 User Manual Usage
This chapter describes the notes for using the precision modular PDC user manual.
Before using this document, get familiar with the actual configuration and application scenario of the modular precision PDC.
Before using this document, make available the documents delivered with each component.
User interfaces displayed in this document correspond to the monitor display module (MDU) version V100R002C46SPC914 and are for reference only.
Put on necessary protective equipment such as the safety helmet and gloves before entering the site.
Before performing an operation, ensure that the prerequisites are met. Otherwise, the expected result may not be achieved. More seriously, equipment damage and personal injury may occur.
Before using this document, read through and keep in mind the safety precautions and the cautions and notes for operations.
Configuration parameters are essential to the reliable running of a system. Improper modifications of parameters easily cause abnormal running status, or even damage to the system.
You are not allowed to modify configuration parameters without permission when using the modular precision PDC. If a modification is necessary, contact Huawei technical support. Huawei shall not be responsible for any loss caused by unauthorized configuration modification.
Operations marked as optional in the chapters, sections, or procedures can be performed depending on the actual configuration and requirements of the modular precision PDC.

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PDU8000 Modular Precision PDC V2.0 User Manual

2 Safety Precautions

2.1 General Safety Precautions

General Safety Principles
To ensure safety of humans and the equipment, pay attention to the safety symbols on the equipment and all the safety instructions in this document.
The "Note", "CAUTION", "WARNING", and "DANGER" statements in this document do not represent all the safety instructions. They are only supplemental to the safety instructions.

Local Safety Regulations
When operating Huawei equipment, you must follow the local laws and regulations. The safety instructions in this document are only supplemental to the local laws and regulations.

Personnel Requirements
Personnel who plan to install, operate, and maintain Huawei equipment must be thoroughly trained, understand all necessary safety precautions, and master correct operation methods.
Only trained and qualified personnel are allowed to install, operate, and maintain the equipment.
Only personnel certified or authorized by Huawei are allowed to replace or change the equipment or components (including software).
Any fault or error that might cause safety problems must be reported immediately to a supervisor.

Grounding Requirements
Equipment to be grounded must meet the following requirements: When installing the device, always make the ground connection first.

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2 Safety Precautions

When removing the device, disconnect the ground cable at the end.
Do not damage the ground conductor.
Do not operate the device in the absence of a properly installed ground conductor.
The device (or system) must be connected permanently to the protection ground before operation. Before operating the device, check its electrical connection to ensure that it is securely grounded.

Human Safety

Do not operate the device or cables during thunderstorms.
In the case of a thunderstorm, disconnect the AC power supply, and do not use fixed terminals or touch the terminals or antenna connectors.
Before operating the device, put on electrostatic discharge (ESD) clothes, ESD gloves, and an ESD wrist strap. Do not wear conductive articles such as jewelry or watches when you operate the device.
In the case of a fire, immediately leave the building or the equipment room, and turn on the fire alarm bell or make an emergency call. Never enter a building or equipment zone that is on fire.

Equipment Safety
The device must be fixed securely on the floor or to other immovable objects such as walls or mounting racks before operation.
Do not block the ventilation vents while the device is operating. Tighten the screws using tools when installing panels. After the installation, remove packing materials from the equipment area.

2.2 Electrical Safety

High Voltage

The high voltage power supply provides power for the device operation. Direct or indirect contact (especially with a damp object) with the high voltage power supply may result in serious injury.
Non-standard and improper high voltage operations may result in fire and electric shock.

High Electrical Leakage

CAUTION
Ground the device before powering it on. Otherwise, personal injury or device damage may be caused by high electrical leakage.
If a "high electricity leakage" tag is attached on the power terminal of a device, you must ground the protective ground terminal on the device enclosure before connecting the AC power supply; otherwise, electric shock as a result of electricity leakage may occur.

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PDU8000 Modular Precision PDC V2.0 User Manual
Power Cable

2 Safety Precautions

Fuse

DANGER
Do not install or remove power cables when the device is on. Transient contact between the core of the power cable and the conductor may generate electric arcs or sparks, which may cause fire or injury to human eyes.
Before installing or removing a power cable, turn off the power switch. Before connecting a power cable, verify that the label on the power cable is
correct.

CAUTION To ensure that the system runs safely, if a fuse is to be replaced, the new fuse must be of the same type and specifications as the old one.
2.3 Environmental Safety

DANGER Do not place or operate a device in a flammable, explosive, or smoky environment. Operating any electronic device in a flammable environment can be fatal.
2.4 Mechanical Safety
Moving Sharp Objects

CAUTION Wear protective gloves when moving sharp objects.

Moving Heavy Objects
Wear protective gloves to protect hands when moving heavy objects.
Be careful to prevent injury when moving heavy objects. It is recommended that tools such as a pallet truck be used to transport the
heavy PDC.

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2 Safety Precautions

2.5 Laying Out Cables
Binding Signal Cables
NOTICE Signal cables must be bound separately from strong-current cables and highvoltage cables.
Laying Out Power Cables
When the temperature is very low, violent impact or vibration may damage the power cable sheathing. To ensure safety, comply with the following requirements: Power cables should be laid out or installed only when the temperature is
higher than 0�C. Store power cables for at least 24 hours at room temperature before laying
out them if they were previously stored at sub-0�C. Handle power cables with caution, especially at a low temperature. Do not
drop the power cables directly from the vehicle.

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3 Overview

3 Overview
3.1 Positioning
The modular precision PDC is mainly used for power distribution and electric parameter measurement. It provides precision electricity management for critical loads in building or container data centers. Figure 3-1 Positioning of the modular precision PDC

3.2 Product Model
NOTE
The models of the rack and input module form the corresponding product model. For example, if the rack model is PDU8000-ACV4-SCA-1 and the input module is a dual-input 630 A switch, the product model is PDU8000-0630ACV4-SCA171.

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PDU8000 Modular Precision PDC V2.0 User Manual
Figure 3-2 Product model

3 Overview

No.

Meaning

Data center power distribution product

0160: The power distribution capacity is 160 A.

0250: The power distribution capacity is 250 A.

0400: The power distribution capacity is 400 A.

0630: The power distribution capacity is 630 A.

AC: alternating current

V4: The rated output voltage is 208 V, 380 V, 400 V, or 415 V.

SCA: precision PDC (applicable to IT equipment)

CCA: integrated PDC (applicable to power equipment)

171: serial code

3.3 Appearance
The PDU8000 modular precision PDC is equipped with a smart precision monitoring system. It provides comprehensive functions for power distribution, electrical parameter measurement, and alarm reporting.
3.3.1 Appearance of the Modular Precision PDC with a Single Input
This section uses the full configuration with three output modules as an example.

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PDU8000 Modular Precision PDC V2.0 User Manual
Figure 3-3 Appearance (2000 mm high)

3 Overview

(1) Indicators (3) SPD and SPD circuit breaker (5) Monitoring board 4 (7) Monitoring board 5 (9) Monitoring board 3

(2) MCCB input circuit breaker (4) Monitoring board 1 (6) Monitoring board 2 (8) MCB output circuit breaker (10) Monitoring board 6

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PDU8000 Modular Precision PDC V2.0 User Manual
Figure 3-4 Appearance (2200 mm high)

3 Overview

(1) Indicators (3) SPD and SPD circuit breaker (5) Monitoring board 4 (7) Monitoring board 5 (9) Monitoring board 3

(2) MCCB input circuit breaker (4) Monitoring board 1 (6) Monitoring board 2 (8) MCB output circuit breaker (10) Monitoring board 6

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Figure 3-5 Appearance (2500 mm high)

3 Overview

(1) Indicators (3) SPD and SPD circuit breaker (5) Monitoring board 4 (7) Monitoring board 5 (9) Monitoring board 3

(2) MCCB input circuit breaker (4) Monitoring board 1 (6) Monitoring board 2 (8) MCB output circuit breaker (10) Monitoring board 6

3.3.2 Appearance of the Modular Precision PDC with Dual Inputs
This section uses the full configuration with three output modules as an example.

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PDU8000 Modular Precision PDC V2.0 User Manual
Figure 3-6 Appearance (2000 mm high)

3 Overview

(1) Indicators of route I (3) Input circuit breaker of route I (5) SPD and SPD circuit breaker of route I (7) Monitoring board 1 (9) Output circuit breaker of route I (11) Monitoring board 2 (13) Monitoring board 3

(2) Indicators of route II (4) Input circuit breaker of route II (6) SPD and SPD circuit breaker of route II (8) Monitoring board 4 (10) Output circuit breaker of route II (12) Monitoring board 5 (14) Monitoring board 6

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PDU8000 Modular Precision PDC V2.0 User Manual
Figure 3-7 Appearance (2200 mm high)

3 Overview

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PDU8000 Modular Precision PDC V2.0 User Manual
Figure 3-8 Appearance (2500 mm high)

3 Overview

3.4 Features
Table 3-1 Features Feature High efficiency and low cost

Description
Highly integrated, normalized designs for structures and components, and flexible configuration

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3 Overview

Feature
Safe and reliable Intelligent monitoring Capacity expansion Fire linkage

Description
Cost-saving and flexible to deliver and deploy thanks to a compact design
Compatible with cabinets of low to high power density
(Optional) Hot-swap branch switches, making maintenance and capacity expansion convenient
Certified by CCC, CE, and TL
Proper connection between main metal components in the power cabinet; resistance less than 0.1 ohm
Hot-swap monitoring board; strong- and weak-current separation
Strong networking capability for teleindication, telemetry, telecontrol, and teleadjusting
Real-time monitoring and alarm reporting
(Optional) Temperature monitoring
(Optional) Capacity expansion for hot-swap circuit breakers with power-on
(Optional) The non-fire extinguishing power supply is cut off by using 24 V DC before extinguishant is released.

3.5 Technical Specifications

Table 3-2 Technical specifications

Item

Specifications

H x W x D (mm) 2000 x 600 x 1100, 2000 x 600 x 1200, 2200 x 600 x 1200, 2500 x 600 x 1200

Weight (kg)

< 450

Rated operating voltage (V)

208/380/400/415 (line voltage)

Rated insulation 500 voltage (V)

Rated frequency (Hz)

50/60

Rated operating current (A)

630/400/250/160

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3 Overview

Item Enclosure protection level Output circuit breakers
Surge protection Cabling
Environmental friendliness Overvoltage level Operating temperature Relative humidity Altitude

Specifications IP20
Single- or three-phase 16 A/20 A/32 A/40 A/63 A; maximum: 144 single-phase routes or 48 three-phase routes Class C SPD in standard configuration 400 A/250 A/160 A input scenario: Cables can be routed
in and out from the top or bottom. 630 A input scenario: Cables can be routed in from the
top and out from the top or bottom. RoHS, REACH
II �5�C to +40�C
5%�95%, non-condensing 2000 m (If the altitude exceeds 2000 m, the device is derated according to GB/T3859.2-93.)

Table 3-3 Safety and EMC Item Specifications Safety CCC, CE, TL EMC Conducted emission (CE) Radiated emission (RE) Voltage fluctuation and flicker
Harmonic current
Conducted susceptibility (CS) Radiated susceptibility (RS) Electrostatic discharge (ESD)

N/A EN55022 CLASS A EN55022 CLASS A EN61000-3-3 EN61000-3-11 EN61000-3-2 EN61000-3-12 IEC61000-4-6
IEC61000-4-3
IEC61000-4-2

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Item

Specifications
Electrical fast transient (EFT)
Surge
Voltage dip and short interruption

IEC61000-4-4
IEC61000-4-5 IEC61000-4-11 2004

3 Overview

3.6 Modules
A modular precision PDC mainly consists of the structural module, power distribution module, monitoring module, and accessories.
3.6.1 Configuration Description
A modular precision PDC consists of the cabinet, power distribution subracks, MCCBs, MCBs, cables, wiring terminals, fuse suite, indicators, and transformers. Determine the specifications and quantity of MCCBs and MCBs to be configured based on the requirement.
Number of inputs: single or dual inputs Input capacity: 630 A/400 A/250 A/160 A Number and capacity of output MCBs: determined based on customer
requirements
Figure 3-9 Cabinet configuration (2000 mm high)

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PDU8000 Modular Precision PDC V2.0 User Manual
(1) Indicator module (1 U high) (3) Output module 1 (10 U high) (5) Output module 3 (10 U high)

3 Overview
(2) Input module (10 U high) (4) Output module 2 (10 U high)

Figure 3-10 Cabinet configuration (2200 mm high)

(1) Top frame (5 U high) (3) Input module (10 U high) (5) Output module 2 (10 U high)

(2) Indicator module (1 U high) (4) Output module 1 (10 U high) (6) Output module 3 (10 U high)

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Figure 3-11 Cabinet configuration (2500 mm high)

3 Overview

(1) Indicator module (1 U high) (3) Output module 1 (10 U high) (5) Output module 3 (10 U high)

(2) Input module (10 U high) (4) Output module 2 (10 U high)

3.6.2 Power Distribution Module
The power distribution module is used for receiving and distributing power, and consists of the MCCB input module, MCB output module, and a power distribution bus.
MCCB input modules are classified into single-route and dual-route ones.

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Figure 3-12 Single-route MCCB input module

3 Overview

Figure 3-13 Dual-route MCCB input module Figure 3-14 MCB output module

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3 Overview

Table 3-4 Module function description

Module

Function

MCCB input module Provides overload and short-circuit protection.

Collects currents.

Provides level C surge protection.

MCB output module Distributes power, and provides overload and shortcircuit protection.

3.6.3 Monitoring Module
The monitoring module is used to display and monitor electrical parameters. It consists of the Monitor Display Unit (MDU), monitoring board, and signal cables. There are two types of MDUs. Their BOM numbers are 02310PQR and 02312PCE.
Figure 3-15 MDU (02312PCE)

Figure 3-16 MDU (02310PQR)

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Figure 3-17 Monitoring board

3 Overview

Table 3-5 Module function description

Module

Function

MDU

Provides menus for setting PDC parameters and viewing the PDC operating status and alarms.

Upgrading software

(Optional) Detects temperatures.

Monitoring board

Collects parameters such as circuit breaker status, and voltages and currents of the main route and branches.

Calculates the main route electric energy, frequency, voltage, current, active power, and reactive power based on the collected parameters.

3.7 Components
3.7.1 MDU
There are two types of MDUs. Their BOM numbers are 02310PQR and 02312PCE.

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Figure 3-18 Front view of an MDU (02312PCE)

3 Overview

Figure 3-19 Front view of an MDU (02310PQR)

(1) Status and alarm indicator

Table 3-6 Indicator status

Indicator Status

Description

Red

A critical alarm has been generated, and the buzzer

buzzes.

Yellow

A major alarm has been generated, and the buzzer buzzes at an interval of 0.5s.

Green

A warning has been generated, or the system is running properly.

Off

The MDU powers off.

Twinkle

The indicator blinks at super short intervals for 0.5s (blinking at 10 Hz, on for 0.05s and then off for 0.05s) and then turns off for 0.5s. The cycle lasts for 10s.
Used to locate device.

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Figure 3-20 Rear view of an MDU (02312PCE)

3 Overview

Table 3-7 Ports at the rear of the MDU (02312PCE)

No. Port

Function

Remarks

1 MUS05A N/A

N/A

2 GE

Network port

N/A

connecting to the

management system

when the PDC uses

Modbus TCP

3 CAN

Used for connecting N/A to the CAN bus

4 RS485_1

Northbound serial port connecting to the management system when the PDC uses Modbus

The cable connected to the port uses the RJ45 unshielded connectors with the following pins:
PIN 1: Connects to the positive terminal of the transmit end on the MDU
PIN 2: Connects to the negative terminal of the transmit end on the MDU
PIN 4: Connects to the positive terminal of the receive end on the MDU
PIN 5: Connects to the negative terminal of the receive end on the MDU

5 FE1

Reserved

N/A

6 FE2

Reserved

N/A

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No. Port 7 USB Host
8 SD 9 SW1�4

Function
Insert the USB flash drive, import and export the configuration file, export run logs, and upgrade software.
Used for connecting to the SD card
DIP switch

Remarks N/A
N/A N/A

Figure 3-21 Rear view of an MDU (02310PQR)

3 Overview

Table 3-8 Ports at the rear of the MDU (02310PQR)

No.

Port

Function

MUS05A

N/A

Network port that connects to the management system when SNMP or Modbus-TCP is used

CAN

Internal communications and power supply port for the MDU LCD

RS485_1

Northbound port that connects to the management system when Modbus-RTU is used

USB Host

Insert the USB flash drive, import and export the configuration file, export run logs, and upgrade software.

RST

MDU reset button

Installing an SD card

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No.

Port

SW1-4

3 Overview
Function
DIP switch: By setting DIP switch toggles in different combinations, you can perform operations such clearing historical alarms, clearing logs, and restoring factory settings

NOTE The user name is admin (preset password: 000001)

Table 3-9 MDU functions and specifications

Item

Remarks

Function

Displays analog values and switch status for the main route and branches, and generates alarms for key parameters.

Provides the communication function.

Specifications

12 V power input

7-inch TFT LCD display module

Board ambient temperature: -20�C to +70�C

Operating humidity: 5%-95%RH

3.7.2 Monitoring Board
There are Three types of monitoring boards with the same appearance.
The monitoring board with the BOM number 02311GDJ or 02311GDJ-002 can convert AC into 12 V DC, and can be installed in all output modules of a cabinet.
The monitoring board with the BOM number 02311GDJ-001 can be installed only in output modules except output module 1.

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Figure 3-22 Appearance of a monitoring board

3 Overview

(1) Indicator

Table 3-10 Indicator description

Indicator Status

Description

Blinking green slowly The operation is normal.

Blinking green fast

The communication fails. The MDU generates a monitoring board communication failure alarm.

Blinking red

Power supply to the monitoring board is faulty or there is a surge current impact alarm.

Off

The monitoring board is not working.

Table 3-11 Functions and specifications of the monitoring board

Item

Remarks

Function

Measures parameters such as the voltages and currents of the mains and branch circuits.

Provides the communication function.

Specifications

Operating temperature: �10�C to +55�C

Operating humidity: 5%�95%RH

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3.7.3 MCCB
Figure 3-23 MCCB exterior

3 Overview

Table 3-12 MCCB functions and specifications

Item

Remarks

Function

Connects and disconnects the circuit under normal working status.

Provides overload and short-circuit protection.

Provides the I1 knob for setting the thermal tripping value.

Specifications

Rated insulation voltage: 800 V AC

Rated frequency: 50 Hz/60 Hz

Operating temperature: -5�C to +40�C

3.7.4 MCB
MCBs are classified into 1-pole, 2-pole, and 3-pole MCBs.

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Figure 3-24 Appearance of a 1P MCB

3 Overview

Figure 3-25 Appearance of a 2P MCB

Figure 3-26 Appearance of a 3P MCB

Table 3-13 MCB functions and specifications

Item

SP200

S201/S202/S203/S204

Functions Connects and disconnects the circuit under normal working status. Provides overload and short-circuit protection

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Item

SP200

S201/S202/S203/S204

Connects and disconnects the circuit under normal working status. Provides overload and short-circuit protection

Specificati ons

Rated voltage: 1P: 230 V AC/240 V AC 3P: 400 V AC/415 V AC

Rated voltage: IEC 1P: 250 V AC IEC 2P: 208 V AC IEC 3P: 440 V AC

Rated insulation voltage: 1 kV AC

Rated insulation voltage: 440 V AC

Rated frequency: 50 Hz/60 Hz

Operating temperature: �40�C to Operating temperature: �25�C to

+70�C

+55�C

Rated limiting short-circuit breaking capacity: 10 kA

Rated limiting short-circuit breaking capacity: 6 kA

Rated surge voltage tolerance (1.2/50): 4 kV

Pyromagnetic tripping: B: 3.2 In Im 4.8 In C: 6.4 In Im 9.6 In D: 9.6 In Im 14.4 In

Pyromagnetic tripping: B: 3 In Im 5 In C: 5 In Im 10 In D: 10 In Im 20 In K: 10 In Im 14 In Z: 2 In Im 3 In

3.7.5 SPD
Figure 3-27 SPD appearance

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Table 3-14 SPD functional parameters

Item

Description

Function

Provides lightening and transient voltage surge protection.

Specifications

Operating temperature: -40�C to +70�C

Operating humidity: 5%-95%RH

Nominal discharge current In (8/20 �s) = 20 kA

Maximum discharge current Imax (8/20 �s) = 40 kA

Voltage protection level Up (20 kA, 8/20 s) 1.8 kV (L-N)/ 1.0 kV (N-PE)

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4 Acceptance Guide

Packing List
The packing materials of a modular precision PDC include: Wooden pallet Moisture-proof plastic bag Corner protector Carton Cushion foam
Unpacking and Accepting Goods

NOTICE
If any damage is found, report it to the carrier immediately. After the equipment is delivered to the installation site, representatives from
the customer and Huawei unpack and inspect the equipment together. Move the cabinet with caution to avoid bumping or toppling. To avoid
damaging the equipment, exercise caution when removing the packing materials.

Step 1 Check whether the tiltwatch indicator on the carton has turned red. If yes, record the information and contact the equipment carrier and the local Huawei office immediately.
Step 2 Visually inspect the equipment appearance to check whether the equipment is paint-peeling, misshapen, scratched, or soaked. If yes, record the information and contact the equipment carrier and the local Huawei office immediately.
Step 3 Check against the delivery list that the equipment and fittings are correct and complete. If some fittings are missing or do not comply with the models in the delivery list, record the information and contact the local Huawei office immediately.
----End

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4 Acceptance Guide

Unpacking
Step 1 Move the PDC to the specified installation position using a forklift. Step 2 Cut off and remove the binding straps.

Figure 4-1 Removing the binding straps

Step 3 Remove the packing materials and foam. Step 4 Remove the plastic bag, take out the fitting box, and put it away.
----End

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5 Installation Guide

5 Installation Guide
5.1 Site Requirements
The PDC site requirements are as follows: Far away from dust, smoke, harmful gas, and corrosive, flammable, or
explosive objects. Free of interference from strong electromagnetic fields. Cabling space should be planned for the site, and cable ladders and cable
trays should be designed for the PDC installation position. The error of the installation platform levelness must be less than 10 mm. Meets the PDC input rating requirements (see the Schematic Diagram
delivered with the product for details). Temperature: -5�C to +40�C Relative humidity: 5%-95% RH, non-condensing Altitude: < 2000 m (derated when the altitude exceeds 2000 m). For the
derating details, contact Huawei technical support. NOTE
Huawei will not be liable for any consequences caused if the installation environment does not meet the requirements.
5.2 Installation Preparations
Before installation, unpack and check the product, make available all required technical documents, tools, and materials, check the installation environment, and train onsite installation personnel.

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5.2.1 Obtaining Technical Documents

Table 5-1 Technical documents

Technical Document

Function

Schematic diagram

Shows the circuit breaker control relationship in the PDC.

Wiring Diagram

Describes the connection positions of input power cables, output power cables, and monitoring cables for the PDC.

PDU8000 Modbus Protocol Used to access a third-

for External Systems

party network

management system.

Obtaining Method Delivered with the product.
Download this document from the website.
Download this document from the website.

5.2.2 Obtaining Tools and Materials
The construction team needs to prepare the tools, meters, and basic materials required for hardware installation.

Table 5-2 Tools and materials

Category Tools and Materials

Tightening M5/M6/M8 Phillips

tools

screwdriver

Flat-head screwdriver (2-5 Adjustable wrench mm)

Torque wrench

Socket wrench set

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Category Pliers

Tools and Materials Needle-nose pliers

Diagonal pliers

5 Installation Guide RJ45 crimping tool

Crimping tool

Wire stripper

Electric hydraulic pliers

Cable cutter

Power tools

Hammer drill

Heat gun

Vacuum cleaner

Instrumen Multimeter ts

Electroprobe

Network cable tester

Auxiliary tools

Right angle

Measuring tape (5 m)

Level

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Category

Tools and Materials Protective shoes

Firestop putty

5 Installation Guide -

NOTE
This table may not list some tools required at specific sites. Site installation personnel and technical support personnel should prepare tools based on site requirements.
Prepare firestop putty for sealing cable holes after cable connection. Huawei does not provide the firestop putty. The customer needs to purchase it.
5.2.3 Checking Personnel Requirements
Construction personnel must have basic knowledge of safe operation, be trained to master correct operation methods, and have the appropriate job qualifications.
The owner should pay attention to the following items when organizing the construction personnel to carry out construction work:
Construction personnel have been trained and qualified by Huawei to master methods for system installation and commissioning, and have obtained work permits before they begin to install and commission equipment.
The number of construction personnel depends on the project progress and the installation environment.
Construction personnel have read through the safety precautions and related product documents before they begin work.

5.3 Installing the PDC

Prerequisites

The installation environment has been checked with expected results. The site has been closed off, and notices have been posted. The PDC has been unpacked and inspected, and no problems were found. You have obtained the tools and meters required for the installation. Installation personnel must be qualified and certified. Power distribution equipment operators must hold a primary electrician certificate or higher.

Context

A modular precision PDC can be installed on a concrete floor or an ESD floor.
A modular precision PDC can be deployed separately or combined with another cabinet.

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NOTE
As the onsite conditions may vary, the following steps are for reference only. Onsite installation personnel and technical engineers can decide whether to perform the steps based on the actual situation.
5.3.1 Moving the PDC
Context

NOTICE The PDC weighs about 400 kg. Take protective measures during movement to prevent toppling and bumping.
Procedure
Step 1 Remove the two L-shaped brackets between the front and rear door sills of the PDC and the pallet, as shown by (1) and (2) in Figure 5-1.
Figure 5-1 Removing L-shaped brackets

Step 2 Use diagonal pliers to cut off the binding straps securing the unloading ramps, and take out the unloading ramps on both sides, as shown by (3) in Figure 5-1.
Step 3 Clip the unloading ramps to the wooden pallet.

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Figure 5-2 Installing the unloading ramps

5 Installation Guide

Step 4 Adjust the PDC leveling feet using a wrench to ensure that all castors touch the ground.
Step 5 Arrange four persons to push the PDC off the wooden pallet to the ground with caution. ----End
5.3.2 Installing the PDC on a Concrete Floor
Procedure
Step 1 Mark the positions for installing expansion bolts based on the marking-off template. NOTE
Each PDC is delivered with one marking-off template of the corresponding size.

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Figure 5-3 Marking-off template (PDC dimensions: 2200 mm x 600 mm x 1100 mm/2000 mm x 600 mm x 1100 mm)

Figure 5-4 Marking-off template (PDC dimensions: 2000 mm x 600 mm x 1200 mm)

Step 2 Drill holes in the marked positions using a hammer drill.
Step 3 Slightly tighten expansion bolts to prevent the expansion sleeves from fluttering.
Step 4 Knock the expansion bolts vertically into mounting holes until the flat washers are flush with the floor.
Step 5 Remove the bolt, flat washer, and spring washer.

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Figure 5-5 Installing expansion sleeves

5 Installation Guide

(1) M12 bolt (4) Expansion sleeve

(2) Spring washer (5) Concrete floor

(3) Flat washer

Step 6 Align the PDC mounting holes with the expansion bolt holes. Step 7 Adjust the anchor bolts of the PDC using an adjustable wrench until the leveling
feet touch the floor.
Figure 5-6 Leveling the feet

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NOTE
Wrench a leveling foot clockwise to elevate a cabinet foot, or wrench a leveling foot anticlockwise to lower it. The cabinet feet can be adjusted within a range of 0-8 mm.
To prevent cabinet tilting, adjust all the feet at the four corners instead of one foot. Do not remove leveling feet, because this work brings you only a great deal of
reworking.
Step 8 Level the PDC using a level and an adjustable wrench.
Figure 5-7 Leveling the PDC

(1) Level
Step 9 Partially tighten the expansion bolt. Step 10 (Optional) Combine cabinets. Remove the cabinet connecting plates from the
rack, and then secure the connecting plates in the connection positions on the door using screws.

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Figure 5-8 Combining PDCs

5 Installation Guide

Step 11 Use a socket wrench to tighten the bolts in diagonal order. Figure 5-9 Tighten the PDC bolts

----End

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5.3.3 Installing the PDC on an ESD Floor

Context

A support is required when the PDC is installed on an ESD floor. The support height depends on the height between the ground and the ESD floor.

Procedure
Step 1 Lower the leveling feet of the PDC using an adjustable wrench until all castors are off the ground and the cabinet is level.
Step 2 Lift the PDC onto the support and align the mounting holes in the PDC with those in the support.
Step 3 Level the PDC by adjusting the leveling feet.

Figure 5-10 Leveling PDC

(1) Leveling foot

(2) Level

Step 4 Insert four M12 bolts into the mounting holes in the PDC and support, and partially tighten the bolts. Scenario 1
Figure 5-11 Securing the cabinet

Scenario 2
NOTE
(Optional) When the PDC installation environment is 5# channel steel and that the PDC cannot be secured using the mounting holes, secure the PDC using the mechanical part shown in the following figure.

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Figure 5-12 Securing the cabinet (using mechanical parts)

5 Installation Guide

Step 5 (Optional) Combine cabinets. Remove the cabinet connecting plates from the rack, and then secure the connecting plates in the connection positions on the door using screws.
Figure 5-13 Combining PDCs

Step 6 Use a socket wrench to tighten the bolts in diagonal order. ----End
5.4 Installing Cables

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5.4.1 Cable Routing Rules

Binding Cables

Table 5-3 Cable binding rules

No.

Cable Binding Rule

Power cables and signal cables are bound separately with a

distance above 150 mm.

Both ends of a cable are labeled. Labels are clean and correct,

and provide concise and understandable description.

Cable ties are neatly cut without sharp burs, evenly distributed,

bound to a proper strength, and fastened towards the same

direction if possible, as shown in Figure 5-14 and Figure 5-15.

Each output power cable bundle can contain 5-10 cables. If too

many cables are bound together, the cables may overheat due to

poor heat dissipation.

Extra cables are coiled neatly and easy to find.

Cables on the surface of a large cable bundle are neatly

organized without unnecessary crossover.

Cables are arranged in distinct layers and crossovers are avoided

if possible when cables in different colors are bound together, as

shown in Figure 5-16. Cables are arranged by thickness when

arrangement by thickness conflicts with arrangement by color.

Cables are reliably bound along the route, and the binding

interval meets the requirements in Table 5-4.

Cables are away from sharp components such as copper bars and

terminals to avoid scratching.

Figure 5-14 Cable ties without sharp burs

Figure 5-15 Cable ties in the same direction

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Figure 5-16 Binding cables in different colors

5 Installation Guide

Table 5-4 Cable bundle binding interval

Cable Bundle Diameter (mm)

Binding Interval (mm)

< 10

150

10-30

200

> 30

300

Cable Bending

Table 5-5 Cable bending rules

No.

Cable Bending Rule

Cables are not overly bent as over bending may damage the

cable cores.

Unless otherwise stipulated, the bending radius should be 10

times greater than the cable diameter if the installation space is

sufficient.

Cables are not tied where they bend, as shown in Figure 5-17.

Cables must be a little longer than the exact cable route length

to facilitate plug and unplug, as shown in Figure 5-18.

Cables should be neatly and loosely arranged to eliminate

abnormal stress on certain cables, as shown in Figure 5-19.

Figure 5-17 Not tied at bends

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Figure 5-18 Extra length for easy plug and unplug

5 Installation Guide

Figure 5-19 Stroking cables

Cable Layout

Table 5-6 Cable layout rules

No.

Cable Layout Rule

The armoring layers of armored cables are grounded.

The PDC ground cable is secured to the equipment room ground

bar. The resistance between the PDC ground cable and the

equipment room ground bar is less than 0.1 ohm.

Cables are securely connected in the correct phase sequence.

Cables are neatly arranged, and cable insulation layers are intact.

Different types of cables are bound separately.

Connection ports and cabling methods facilitate maintenance,

cable routing, and capacity expansion.

Cable connectors prepared onsite must be normal, secure,

reliable, and neat.

Power cables, ground cables, and various signal cables are

securely connected. Adapters are securely plugged or screwed.

The N and PE cables are bound separately from the L1/L2/L3 or L

cables for each circuit breaker. Cables are converged at the beam

and bound in groups by cable ties.

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5.4.2 Power Cable Specifications
YJV 5-core cables are recommended. When the ambient temperature is 40�C, the conductor working temperature cannot exceed 90�C.
For the installation torque for power connection of involved electrical parts, see the specifications of the electrical parts. If the torque is not specified, see the torque requirements listed in the following table.

Table 5-7 Power cable specifications

Wiring Terminal

Rated Current (A)

Recommend ed CrossSectional Area (mm2)

Power input 160

(L/N)

250

400

185

630

2 x 185

Power input 160

(PE)

250

400

630

2 x 95

AC output < 10

2.5

(L)

10 I 40 6

40 < I 63 10

AC output < 10

2.5

(N/PE)

10 I 40 6

Terminal/Bolt Recommended Specifications Torque (N�m)

DT-M10

DT-M12

DT-M16

120

DT-M16

120

DT-M10

DT-M12

Cord end

1.2

terminal

(crimping

screw

specification:

M4)

Cord end

1.2

terminal

(crimping

screw

specification:

M4)

Cord end

1.2

terminal

(crimping

screw

specification:

M4)

OT-M6

4.5

OT-M6

4.5

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Wiring Terminal

Rated Current (A)
40 < I 63

Recommend ed CrossSectional Area (mm2)
10

Terminal/Bolt Recommended Specifications Torque (N�m)

OT-M6

4.5

5.4.3 Preparing Terminals
Figure 5-20 Preparing a DT terminal

(1) Cable

(2) Heat shrink tubing

(3) DT terminal

(4) Electric hydraulic pliers

(5) Heat gun

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Figure 5-21 Preparing an OT terminal

5 Installation Guide

(1) Cable

(2) Heat shrink tubing

(3) OT terminal

(4) Electric hydraulic pliers

(5) Heat gun

Figure 5-22 Preparing a cord end terminal

(1) Cable

(2) Cord end terminal

(3) Crimping tool

There are two types of RJ45 connectors, including 568A and 568B, as shown in Figure 5-23 and Figure 5-24. Using 568A as an example: The RJ45 connector can be connected in the 4-wire or 2-wire methods, as shown in Figure 5-25 and Figure 5-26.

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Figure 5-23 568A RJ45 connector

5 Installation Guide

Figure 5-24 568B RJ45 connector

Figure 5-25 4-wire Figure 5-26 2-wire

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5.4.4 Connecting Cables
Cable Holes
Figure 5-27 Cable holes at the top

5 Installation Guide

(1) Monitoring cable hole (3) Power cable outlet hole

(2) Power cable inlet hole

Figure 5-28 Cable holes at the bottom

(1) Cable holes at the bottom

Precautions

Ensure that all circuit breakers, including upstream output circuit breakers, are switched off before connecting cables.
OT terminals and DT terminals must be coated with a heat shrink tubing.

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NOTE
This document uses the dual-input top cable routing and single-input bottom cable routing as examples. Cable connections for other scenarios are similar.
Remove the rodent-proof mesh at the top or bottom based on the cable routing scenario.
Connection Method

CAUTION
Keep away from cabinets when preparing cables to prevent cable scraps from entering the cabinets. Cable scraps may cause ignition during power-on and result in personal injury and device damage.
After installing cables, clean the cabinet top, bottom, copper bar wiring positions, and other positions. Ensure that there is no dust or scraps inside and around cabinets.
Prepare terminals onsite. The length of the copper wire should be the same as that of the part of the terminal that covers the conductor.
Step 1 Route a cable into the cabinet and bind it to a nearby beam.
Step 2 Pull the cable to the copper bar to which the cable is to be connected, determine the cable length, and mark the cable at the position where the cable is to be cut.
Step 3 Pull the marked cable out of the cabinet, cut the cable from the marked position, strip the cable, and crimp a terminal.
Figure 5-29 Preparing a cable terminal outside the cabinet

NOTE
Choose an appropriate cabling route based on the actual situation. The figure is for reference only.
Step 4 Connect the cable with a crimped terminal to the corresponding copper bar. Step 5 Clean foreign matter inside the cabinet.
----End

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5.4.4.1 Top Cable Routing
The following procedure applies to a dual-input PDC.

Procedure
Step 1 Remove the rodent-proof meshes at the top and put them aside.

Figure 5-30 Removing rodent-proof meshes at the top

Step 2 Remove the transparent covers of the N bar and input copper bar, and put the covers aside.
Figure 5-31 Removing the transparent covers of the N bar and input copper bar

Step 3 Connect the equipotential ground cables for the cabinet.

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Figure 5-32 Connecting the equipotential ground cables for the cabinet

Step 4 Connect the input power cables.
NOTICE In single-input scenarios, connect the input N cable to 1N. When connecting the input power cables, verify that the screw assemblies face
the same direction, and that the nuts face the cabinet rear door. Connect the three-phase cables, N cable, and PE cable in sequence.
Figure 5-33 Connecting input power cables

Step 5 Connect the output power cables.

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Figure 5-34 Connecting output power cables

5 Installation Guide

Step 6 The following figure shows the overall effect after cable connection.

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Figure 5-35 Overall cable connection effect

5 Installation Guide

Step 7 Connect the PDC monitoring cable to the RS485_1 or FE port on the MDU side.

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Figure 5-36 Connecting the monitoring cable

5 Installation Guide

(1) Monitoring cable outlet

Step 8 (Optional) Connect the fire linkage cables.
The customer can select a cable connection method based on the actual requirement:
Scenario 1: single-input or dual-input PDC; one pair of fire extinguishing input cables control all loads to power off.
� Single-input PDC: Connect the positive and negative terminals of the fire control cable to the 24VDC(+) and 24VDC(-) wiring terminals at the rear right of the cabinet respectively.
� Dual-input PDC: Connect the positive and negative terminals of the fire control cable to the 24VDC(+) and 24VDC(-) wiring terminals at the rear left or rear right of the cabinet respectively.
Scenario 2: dual-input PDC; either of the two pairs of fire extinguishing input cables can control all loads to power off.
� Separate the two routes of fire control cables and connect them to the fire extinguishing signal wiring terminals on both sides at the cabinet rear. Connect the positive and negative terminals of each pair of control cable to the 24VDC(+) and 24VDC(-) wiring terminals at the rear left and rear right of the cabinet respectively.
NOTE
1. 24 V DC cables routed into the PDC should be shielded cables.
2. Ensure that the polarities of 24 V DC cables routed into the PDC are correct.

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Figure 5-37 Connecting the fire linkage cables (scenario 1)

5 Installation Guide

Figure 5-38 Connecting the fire linkage cables (scenario 2)

Step 9 Cut cable inlet and outlet holes in the rodent-proof meshes based on the number and size of cables to be routed.
Figure 5-39 Cutting holes in the rodent-proof meshes

Step 10 Reinstall the rodent-proof meshes.
Step 11 Reinstall the transparent covers of the input copper bar and N bar.
Step 12 Seal the gap between cables and the cabinet using flake sealing putty. (Remove the paper protective film from the sealing putty and use the aluminum foil film together with the sealing putty.)

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Figure 5-40 Fill the holes with flake sealing putty

5 Installation Guide

----End
5.4.4.2 Bottom Cable Routing
The following procedure applies to a single-input PDC.
Procedure
Step 1 Remove the transparent covers of the N bar and input copper bar, and put the covers aside.
Figure 5-41 Removing the transparent covers of the N bar and input copper bar

Step 2 Connect the equipotential ground cables for the cabinet.

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Figure 5-42 Connecting the equipotential ground cables for the cabinet

Step 3 Connect the input power cables.
NOTICE In single-input scenarios, connect the input N cable to 1N. When connecting the input power cables, verify that the screw assemblies face
the same direction, and that the nuts face the cabinet rear door. Connect the three-phase cables, N cable, and PE cable in sequence.

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Figure 5-43 Connecting input power cables

5 Installation Guide

Step 4 Connect the output power cables.

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Figure 5-44 Connecting output power cables

5 Installation Guide

Step 5 The following figure shows the overall effect after cable connection.

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Figure 5-45 Overall cable connection effect

5 Installation Guide

Step 6 Connect the PDC monitoring cable to the RS485_1 or FE port on the MDU side. Figure 5-46 Connecting the monitoring cable

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(1) Monitoring cable outlet

5 Installation Guide

Step 7 (Optional) Connect the fire linkage cables.
The customer can select a cable connection method based on the actual requirement:
Scenario 1: single-input or dual-input PDC; one pair of fire extinguishing input cables control all loads to power off. � Single-input PDC: Connect the positive and negative terminals of the fire control cable to the 24VDC(+) and 24VDC(-) wiring terminals at the rear right of the cabinet respectively. � Dual-input PDC: Connect the positive and negative terminals of the fire control cable to the 24VDC(+) and 24VDC(-) wiring terminals at the rear left or rear right of the cabinet respectively.
Scenario 2: dual-input PDC; either of the two pairs of fire extinguishing input cables can control all loads to power off. � Separate the two routes of fire control cables and connect them to the fire extinguishing signal wiring terminals on both sides at the cabinet rear. Connect the positive and negative terminals of each pair of control cable to the 24VDC(+) and 24VDC(-) wiring terminals at the rear left and rear right of the cabinet respectively.
NOTE
1. 24 V DC cables routed into the PDC should be shielded cables. 2. Ensure that the polarities of 24 V DC cables routed into the PDC are correct.
Figure 5-47 Connecting the fire linkage cables (scenario 1)

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Figure 5-48 Connecting the fire linkage cables (scenario 2)

5 Installation Guide

Step 8 Reinstall the transparent covers of the input copper bar and N bar. Step 9 Seal the gap between cables and the cabinet using flake sealing putty. (Remove
the paper protective film from the sealing putty and use the aluminum foil film together with the sealing putty.) Figure 5-49 Fill the holes with flake sealing putty
----End

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6.1 Check Before Power-on Commissioning

Table 6-1 Hardware installation checklist

No.

Check Item

The cabinet is clean, without redundant screws,

copper wires, or other debris.

The paint on the cabinet exterior is intact.

The cabinet door and lock work properly.

All labels are correct, clear, and complete.

The surrounding area of the cabinet contains no

waste tape, cable ties, paper, or packing materials.

Result Yes No
Yes No Yes No Yes No Yes No

Table 6-2 Electrical connection checklist

No.

Check Item

All cables are connected properly.

The ground cable is connected properly.

The excessive sections of ground cables and power

cables are cut off.

Phase cables are connected properly.

All circuit breakers are OFF.

Result Yes No Yes No Yes No
Yes No Yes No

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Table 6-3 Cable installation checklist

No.

Check Item

All bolts are tightened, especially the bolts used for

electrical connection. Flat washers and spring

washers are installed properly.

Cable installation meets the cable routing

requirements.

Cables are routed in the way convenient for future

maintenance and expansion.

There are no unnecessary adhesive tape or cable

ties on the cables.

Exposed parts near the wiring terminals and lugs

are wrapped in PVC insulation tape or heat

shrinking tubing.

The cable routing for power cables and monitoring

cables meets the requirements for routing power

cables and signal cables and complies with the

cable routing plan.

Result Yes No
Yes No Yes No Yes No Yes No
Yes No

6.2 Power-On Commissioning
Context

NOTICE
The power-on commissioning process requires at least two qualified electricians, one responsible for operations and the other for monitoring.
Cautions and warnings must be properly placed onsite.
Users are categorized as admin and operator. Admin users have more rights than operator users.
Powering off the PDC disconnects the power supply to the downstream devices. Exercise caution with this operation when the PDC is supplying power to a working system.

Procedure
Step 1 Check cable connections and the mechanical performance. 1. Check that cables are connected correctly outside the cabinet. Check that all bolts are secured for inlet and outlet cables and tighten a bolt if it is loose. 2. Check that ground cables are properly connected.

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Step 2 Check the insulation only after the upstream and downstream circuit breakers in the PDC are switched off. 1. Switch off the upstream circuit breaker QFS for the SPD in the input module of the PDC, and switch on other circuit breakers.
Figure 6-1 Switching off the SPD circuit breaker

2. Check that the insulation resistance between the live wires, between the live wire and the PE, and between the live line and the neutral wire is no less than 0.5 megohm using a multimeter.
3. After checking, turn off all the circuit breakers. Step 3 Switch on the SPD circuit breaker.
NOTICE If the indicator of an SPD module is green, the SPD module is running properly. If an indicator is red, the corresponding SPD module has failed and must be promptly replaced.
Figure 6-2 Switching on the SPD circuit breaker

Step 4 Switch on the input power circuit breaker to power on the PDC. If the power indicator on the front panel of the PDC lights up, the PDC is powered on properly.
NOTE
The input power circuit breaker refers to the output circuit breaker that controls power supply from the upstream power distribution equipment to the PDC.
Step 5 After the MDU screen starts, perform operations. If this is the initial startup, set the language, time, date, network parameters, and system parameters by using the Setting Wizard.

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If this is not the initial startup and these parameters have been set before, the system uses the existing settings by default. NOTE
The user name is admin (preset password: 000001).

Figure 6-3 Setting Wizard

NOTE
The figures are for reference only. The actual parameter values prevail.
Step 6 After the quick settings are complete, if the monitoring page displays alarms, clear the alarms. NOTE
For system security purposes, change the preset password upon first login.
Step 7 Turn on the input switches on the front panel of the PDC.
Step 8 Switch on the output circuit breakers except reserved circuit breakers in the PDC in sequence to power on the corresponding devices and check whether the monitoring parameters on the MDU screen are correct.
Step 9 (Optional) Power off the PDC. 1. Turn off the output switches in the PDC. 2. Turn off the input switches in the PDC. 3. Switch off the upstream power circuit breaker of the PDC.
----End

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7.1 UI Appearance
After the MDU is powered on, the main screen is displayed. The main screen consists of a status bar, an alarm bar, a menu bar, and an information area. Figure 7-1 Home screen

Table 7-1 Function Description

No.

Area

Function Description

Status bar The status bar displays the product model, Universal

Serial Bus (USB) flash drive, buzzer status, and current

date and time.

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No.

Area

Function Description

Alarm bar The alarm bar displays active alarms in a scrolling

manner and the numbers of active critical alarms,

major alarms, and warnings. You can click

screen.

to enter the Active Alarm

Menu bar The menu bar displays Common Functions, System

Info., and Operating Status.

Information Table 7-2 lists the functions of common buttons in the

area

information window.

Table 7-2 Functions of common buttons in the information window

Button

Function Description

Returns to the upper-level menu.

Goes to the previous screen.

Goes to the next screen.

Returns to the main menu screen.

Logs out.

7.2 Menu Hierarchy
NOTE
This section uses a cabinet with dual three-phase inputs as an example. For other cabinets, the actual menu hierarchy prevails.

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Figure 7-2 Menu hierarchy

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7.3 Common Functions
Figure 7-3 Common Functions

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7.3.1 Historical Alarm
On the Common Functions screen, tap Historical Alarm to access the screen.

Figure 7-4 Historical Alarm

7.3.2 Branch Output 1/2
On the Common Functions screen, tap Branch Output 1 to view the detailed parameters of each circuit breaker of Branch Output 1. For the information about the Branch Output 2 screen, refer to Branch Output 1.
Figure 7-5 Branch Output 1 (1)

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Figure 7-6 Branch Output 1 (2)

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7.4 System Information
On this screen, you can query the operating status, alarm status, and software version of the system. You can also set and maintain model information for the system.
Figure 7-7 System Info.

7.4.1 Running
On the System Info. screen, tap Running to access the screen.

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Figure 7-8 Running (1)

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Figure 7-9 Running (2)

Figure 7-10 Running (3)

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7.4.1.1 Main Input 1/2
On the Running screen, tap Main Input 1 to access the screen. NOTE
For the information about the Main Input 2 screen, refer to Main Input 1.
Figure 7-11 Main Input 1 (1)

Figure 7-12 Main Input 1 (2)

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Figure 7-13 Main Input 1 (3)

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Figure 7-14 Main Input 1 (4)

Power factor
Indicates the ratio of the input active power to input apparent power.
Phase voltage (V)/Phase current (A)/Frequency (Hz)
Indicates the mains input phase voltage, mains input phase current, and mains input frequency.
Load ratio (%)
Indicates the load ratio of each phase, that is, ratio of actual power to rated power.

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Total Active Power (kW) Indicates the sum of active power of all phases of the mains input. Tot. energy (kWh) Indicates the sum of electricity energy of all phases of the mains input. Tot. apparent pwr. (kVA) Indicates the sum of apparent power of all phases of the mains input. Tot. reactive pwr. (kVAR) Indicates the sum of reactive power of all phases of the mains input. Temp (�C) Indicates the mains temperature.

7.4.1.2 Branch Output 1/2
On the Running screen, tap Branch Output 1 to view the detailed parameters of Branch Output 1.
NOTE
For the information about the Branch Output 2 screen, refer to Branch Output 1.

Figure 7-15 Branch Output 1 (1)

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Figure 7-16 Branch Output 1 (2)

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7.4.1.3 Input 1/2 Curve
On the Running screen, tap Input 1 Curve to view the load ratio of the main input.
NOTE For the information about the Input 2 Curve screen, refer to Input 1 Curve.
Figure 7-17 Input 1 Curve

7.4.1.4 Query Energy Yield
On the Running screen, tap Query Energy Yield to enter the screen. Then you can query the total energy yield in a time period after setting the start and end time.

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Figure 7-18 Main energy Inq.

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7.4.1.5 Branch 1/2 Temperature Curve
On the Running screen, tap Br.1 Temp Curve to access the screen. NOTE
For the information about the Br.2 Temp Curve screen, refer to Br.1 Temp Curve.
Figure 7-19 Br.1 Temp Curve

7.4.1.6 Branch 1/2 Terminal Temperature Curve
On the Running screen, tap Br1 Ter Temp Curve to access the screen. NOTE
For the information about the Br2 Ter Temp Curve screen, refer to Br1 Ter Temp Curve.

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Figure 7-20 Br1 Ter Temp Curve

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7.4.1.7 Branch 1/2 Subrack Temperature Curve
On the Running screen, tap Br1 Sub Temp Curve to access the screen. NOTE
For the information about the Br2 Sub Temp Curve screen, refer to Br1 Sub Temp Curve.
Figure 7-21 Br1 Sub Temp Curve

7.4.2 Alarms
On the System Info. screen, tap Alarms to access the screen.

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Figure 7-22 Alarms

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7.4.2.1 Active Alarm
On the Alarms screen, tap Active Alarm to access the screen.
Figure 7-23 Active Alarm

7.4.2.2 Historical Alarm
On the Alarms screen, tap Historical Alarm to access the screen.

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Figure 7-24 Historical Alarm

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7.4.2.3 Buzzer Off
Two buzzer control items are available, that is, Buzzer On and Buzzer Off. If the buzzer of the system is muted, Buzzer On is displayed on the operation screen. If the buzzer of the system is enabled, Buzzer Off is displayed on the operation screen.
On the Alarms screen, tap Buzzer Off, and tap OK on the displayed screen.
Figure 7-25 Buzzer Off

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NOTE
Buzzer On and Buzzer Off can be set in the same way. If you enable the buzzer, the buzzer buzzes when a critical alarm, minor alarm, or
warning is generated. If you mute the buzzer, the buzzer does not buzz no matter what alarms are generated.

7.4.2.4 Twinkle

When the PDC communicates with the northbound NMS, the function determines the position of the UPS in the NMS layout diagram.

7.4.3 Settings

On the System Info. screen, tap Settings to access the screen. If you have not logged in, the system displays the login dialog box. Enter the initial user name and

password and tap

to log in to the system and access the Settings screen.

NOTICE
The default user name is operator, and the initial password is 000001. If you enter incorrect passwords for three consecutive times, your account will
be locked for 5 minutes. If you do not operate the screen for 3 minutes, the System Info. screen is
displayed, and the system performs a forcible logout.
Figure 7-26 Settings 1

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Figure 7-27 Settings 2

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7.4.3.1 Common Settings
On the Settings screen, tap Common to access the screen.
Figure 7-28 Common 1

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Figure 7-29 Common 2

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7.4.3.2 Communication Settings
On the Settings screen, tap Communication to access the screen.
Figure 7-30 Communication (1)

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Figure 7-31 Communication (2)

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IP address assign
� If the MDU is directly connected to a computer, the IP address can only be allocated manually. The IP addresses of the MDU and computer must be in the same network segment, and must be different.
� If the MDU is connected to a computer through a LAN switch or router with the DHCP function, the IP address can be allocated manually or automatically.
Manual: The IP addresses of the MDU and computer must be in the
same network segment, and must be different.
Automatic: The MDU automatically queries available IP addresses in
the connected network. Ensure that the MDU and PC are on the same network segment.
NOTE
You can set IP address allocation to Manual or Automatic. If the MDU restarts, IP address allocation automatically changes to Automatic. The IP address is bound as the IP address set last time, allowing you to log in for the second time.
IP address
Set an IP address for the Ethernet. The value ranges from 0.0.0.0 to 255.255.255.255. The default value is 192.168.0.10.

NOTICE
Ensure that the IP address is unique on the network segment. Otherwise, the LCD cannot work properly.

Subnet mask

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Set a subnet mask for the Ethernet. The value ranges from 0.0.0.0 to 255.255.255.255. The default value is 255.255.255.0.
Gateway
Set an Ethernet gateway. The value ranges from 0.0.0.0 to 255.255.255.255. The default value is 192.168.0.1.
Serial port baud rate
Set the serial port communications rate. The value options include 4800, 9600, and 19200. The default value is 9600.
Serial port address
Set the serial port communications address. The value ranges from 0 to 254. The default value is 1.
SSL
Indicates whether Modbus-TCP supports encryption transmission. The default value is Enable.
ModbusTCPcertification
Sets the secondary authentication for NMS access. The default value is Disable.
SNMP Configuration
Set SNMP related parameters.

7.4.3.3 System Parameter Settings
On the Settings screen, tap System Param. to access the screen.

Figure 7-32 System Param. 1

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Figure 7-33 System Param. 2

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Rated frequency (Hz) Specifies the rated frequency of the PDU8000. The value ranges from 45 to 65. Rated line voltage (V) Specifies the rated voltage of the PDU8000. The value ranges from 100 to 480. Rated current (A) Specifies the rated current of the PDU8000. The value is 160, 250, 400, and 650. Main input 1 CT ratio The value ranges from 50 to 800. Main input 2 CT ratio The value ranges from 50 to 800. Br. cur. shock threshold (%) The value ranges from 150 to 500. x harmonic frequency The value ranges from 2 to 63. y harmonic frequency The value ranges from 2 to 63. z harmonic frequency The value ranges from 2 to 63. Package integrity protection Can be set to Disable or Enable.

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7.4.3.4 Branch Parameter Settings
On the Settings screen, tap Branch Param. to access the screen. Tap Set Branch 1 Alias or Set Branch 2 Alias to set circuit breaker alias. Tap Set Rated Current to set circuit breaker parameters.

Figure 7-34 Branch Param.

Rated Current (A) Specifies the rated current of each branch. The value is 10, 16, 25, 32, 40, 50, and 63.
7.4.3.5 Threshold Settings
On the Settings screen, tap Threshold to access the screen.

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Figure 7-35 Threshold (1)

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Figure 7-36 Threshold (2)

Open phase voltage (V)
The value ranges from 0 to 60.
System overvoltage (%)
Specifies the upper alarm threshold in relative to the rated voltage. The value ranges from 105 to 125.
Overvoltage ack.time (s)
Specifies the duration for confirming an overvoltage alarm. The value ranges from 1 to 10.

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System undervoltage (%)
Specifies the lower alarm threshold in relative to the rated voltage. The value ranges from 75 to 95.
Undervoltage ack.time (s)
Specifies the duration for confirming an undervoltage alarm. The value ranges from 1 to 10.
Overload (%)
Specifies the overload alarm threshold in relative to the rated load. The value ranges from 100 to 120.
Overload ack.time (s)
Specifies the duration for confirming an overload alarm. The value ranges from 1 to 10.
Overfrequency (Hz)
Specifies the overfrequency alarm threshold in relative to the rated frequency. The value ranges from 1 to 10.
Overfrequency ack.time (s)
Specifies the duration for confirming an overfrequency alarm. The value ranges from 1 to 10.
Upper load cur. thre. (%)
Specifies the upper alarm threshold in relative to the rated current. The value ranges from 80 to 100.
Lower Load cur. thre. (%)
Specifies the lower alarm threshold in relative to the rated current. The value ranges from 30 to 80.

7.4.3.6 Setting Wizard
On the Settings screen, tap Setting Wizard to access the screen.

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Figure 7-37 Setting Wizard (1)

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Figure 7-38 Setting Wizard (2)

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Figure 7-39 Setting Wizard (3)

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Figure 7-40 Setting Wizard (4)

7.4.3.7 Access Control
On the Settings screen, tap Access Control to access the screen.

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Figure 7-41 Access Control

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Table 7-3 Access Control

Item

Description

Default Value

SSH

Refers to a secure encrypted Enable

transmission protocol used to

access the UPS with a terminal

tool.

Disable: The SSH port is disabled and cannot be accessed.

Enable: The SSH port is enabled and can be accessed.

ModbusTCP

Refers to an Ethernet-based Modbus protocol used to connect to the NetEco.
Disable: The Modbus TCP services are unavailable.
Enable: All functions are available.

Enable

SNMP

Refers to the Simple Network Management Protocol used to connect to the NetEco.
Disable: The SNMP services are unavailable.
Enable: All functions are available.

Enable

Value Range Disable, Enable
Disable, Enable
Disable, Enable

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Item ModbusRTU

Description
Refers to a Modbus protocol based on the RS485 bus, which is used to connect to the NetEco. Disable: The Modbus RTU services are unavailable. Enable: All functions are available.

Default Value
Enable

Value Range
Disable, Enable

7.4.4 Maintenance
On the System Info. screen, tap Maint. to access the screen.
Figure 7-42 Maint. (1)

Figure 7-43 Maint. (2)

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Figure 7-44 Maint. (3)

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7.4.4.1 Upgrading Software
Prerequisites
To upgrade the software, perform the following steps:
Procedure
Step 1 Connect a USB flash drive to the USB Host port. The message A new USB device is found is displayed.
Step 2 Log in to the Maint. screen as user admin, and tap Upgrade Software to access the screen.
Figure 7-45 Upgrade Software (1)

Step 3 Tap Upload on the displayed screen, select the upgrade software package, and tap Next.

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Figure 7-46 Upgrade Software (2)

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NOTE Tap the folder to view its subfolders. Step 4 On the displayed screen, wait until the software package is automatically copied and parsed.
Figure 7-47 Upgrade Software (3)

Step 5 After the software package is copied and parsed, the software activation screen is displayed again. Select the software package and tap Details to activate the software package.

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Figure 7-48 Upgrade Software (4)

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Step 6 Tap Activate to activate the software. After the software is activated, the MDU restarts to complete the upgrade.
Figure 7-49 Upgrade Software (5)

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NOTE
The MDU is not restarted if the software for the monitoring board is activated and is restarted if the software for the MDU is activated.
If the PDC is powered off when the software for the monitoring board is being upgraded, the information about the monitoring board is not displayed after the MDU is restarted. In this case, tap Upgrade Software to continue the upgrading process. If the PDC is powered off when the software for the MDU is being upgraded, perform the upgrading again after the MDU is restarted.
After the software is upgraded, the MDU parameters remain unchanged and do not need to be reset.
----End
7.4.4.2 Loading Configurations

Context

The Load Config. function enables you to set system parameters.

NOTICE Note that the function may change the original model configuration parameter values. Exercise caution when using this function.
Procedure
Step 1 Connect a USB flash drive to the USB Host port.
Figure 7-50 Inserting the USB flash drive

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(1)USB Host port

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Step 2 On the Maint. screen, tap Load Config. to access the screen. Step 3 Select the file to be loaded and tap Next.
Figure 7-51 Loading configurations

NOTICE After the parameters are configured, the MDU restarts to complete the Load Config. operation.
----End
7.4.4.3 Downloading Configurations
Procedure
Step 1 Insert the USB flash drive. Step 2 On the Maint. screen, tap Download Config. to access the screen. Step 3 Select the storage path and tap Next.

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Figure 7-52 Downloading configurations

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----End
7.4.4.4 Downloading Logs Procedure
Step 1 Insert the USB flash drive. Step 2 On the Maint. screen, tap Download Logs to access the screen. Step 3 Select the storage path and tap Next.
Figure 7-53 Downloading logs

----End

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7.4.4.5 Exporting Alarms

Procedure
Step 1 Insert the USB flash drive. Step 2 On the Maint. screen, tap Export Alarms to access the screen. Step 3 Select the storage path and tap Next.

Figure 7-54 Exporting alarms

----End
7.4.4.6 Exporting E-labels
Procedure
Step 1 Insert the USB flash drive. Step 2 On the Maint. screen, tap Export E-labels to access the screen. Step 3 Select the storage path and tap Next.

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Figure 7-55 Exporting E-labels

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----End
7.4.4.7 Uploading Modbus Configurations Procedure
Step 1 Insert the USB flash drive. Step 2 On the Maint. screen, tap Upload MD Config to access the screen. Step 3 Select the file to be loaded, and tap Next.
Figure 7-56 Uploading Modbus configurations

----End

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7.4.4.8 Extending Modbus Configurations

Procedure
Step 1 Insert the USB flash drive. Step 2 On the Maint. screen, tap Extend MD Config to access the screen. Step 3 Select the storage path and tap Next.

Figure 7-57 Extending Modbus configurations

----End
7.4.4.9 Fault Report
Procedure
Step 1 Insert the USB flash drive. Step 2 On the Maint. screen, tap Fault Report to access the screen. Step 3 Select the storage path and tap Next.

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Figure 7-58 Fault Report

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----End
7.4.4.10 Uploading the CA Certificate and Certificate File
The CA certificate and certificate file loading is used for encrypted communication. Users can perform the operation as required.
Procedure
Step 1 Insert the USB flash drive. Step 2 On the Maint. screen, tap Upload CA Cert to access the screen. Step 3 Select the file to be loaded and tap Next.
Figure 7-59 Uploading the CA certificate

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Step 4 On the Maint. screen, tap Upload Cert File to access the screen. Step 5 Select the file to be loaded and tap Verify Pwd.

Figure 7-60 Uploading the certificate file (1)

Step 6 Enter the Verify Pwd and Confirm Password and tap

Figure 7-61 Uploading the certificate file (2)

Step 7 Perform the next step as prompted. ----End

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7.4.4.11 Lifecycle Management
On Lifecycle Management, you can view monitor information such as First Power-on, Arrival Date, and Service Life.

Figure 7-62 Lifecycle Management

7.4.5 About
On the System Info. screen, tap About to access the screen. To view the detailed version information, tap Version Details.
Figure 7-63 About

7.5 Operating Status
On the main screen, tap Operating Status to access the screen and query the circuit breaker status of the mains and branches.

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Figure 7-64 Operating Status

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7.6 DIP Switches
The DIP switches are located at the back of the MDU.
Figure 7-65 DIP switches

The following lists the functions of the DIP switches: DIP2 to DIP4: Work together with specified buttons to clear historical records and logs and restore factory settings.
NOTE
To clear historical records and logs, you must log in as the admin user.

Table 7-4 Functions of the DIP switches

Function Status

DIP2 DIP3

Clear historical alarms.

OFF

DIP4 OFF

Button

Action

Operation

Press and hold Active Alarm for about 10s.

Clear historical alarms.

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Function Status Clear logs.
Restore factory settings.

7 MDU Commissioning Guide

DIP2 OFF
ON

DIP3 ON
ON

DIP4 ON
OFF

Button

Action

Operation

Press and hold Buzzer Off for about 10s.

Clear operation logs (APP/ LUI). The MDU automaticall y restarts during the process.

Press and hold Buzzer Off for about 10s.

The MDU automaticall y restarts after factory settings are restored.

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8.1 Routine Maintenance
Routine maintenance is performed on a regular basis when the equipment is running properly to find out and eliminate defects or potential risks in a timely manner.

Table 8-1 Routine maintenance for the PDC

Maintenance Item

Mai nten ance Inter val

Operation Guide

Expected Result

Exception Handling

Three phase power indicators

Mon thly

Check the luminance of the indicators.

The three phase power indicators are steady on.

Replace the indicator that generates no or dim light.

Surge protection module

Mon thly

Check the status of the surge protection module indicator and circuit breaker.

The surge protecti on module indicator is green.
The circuit breaker is switched on.

If the indicator of an SPD module is red, replace the SPD module.
If the circuit breaker is switched off, switch it on.

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Maintenance Item

Mai nten ance Inter val

Operation Guide

Expected Result

Exception Handling

Liquid crystal display (LCD) screen on the PDC

Mon thly

Touch the LCD screen with your finger.

The user interface is displaying information normally.

Check whether the power cable is properly connected or replace the MDU.

Connections of input power cables and output power cables

Mon Visual thly observation

The cables are not damage d.
The terminal s are intact and secure and free from spark signs and rust.

Take measures depending on the severity.

Signs of rodent movements in the PDC

Mon thly

Visual observation

There is no sign of rodent movements in the PDC.

If there is a sign of rodent movements, ask a professional for advice.

PDC component appearance

Quar Visual terly observation

The exterior is intact.

Take measures depending on the severity.

Operating temperature and humidity of the PDC

Quar terly

Measure the temperature and humidity using a point thermometer.

Operatin g tempera ture: -10�C to +55�C
Humidit y: 5%-95% RH

Check whether the air conditioner and dehumidifier in the equipment room function properly.

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Maintenance Item

Mai nten ance Inter val

Operation Guide

PDC interior

Yearl y

Check whether dust has accumulated on the PDC mounting panels.

Oxidation of metal components in the PDC

Yearl Visual

observation

Expected Result

Exception Handling

The white paper that you use to wipe the mount panel is clean.

If the white paper becomes dirty, clean the PDC interior.

No metal component rusts.

If any metal component suffers from severe oxidation, remove the rust or replace the component in a timely manner.
If the component is painted, repaint it after removing the rust.

8.2 Alarm Reference

Alarm Name
Abnormal board comm.

Alarm Severity
Critical

Configuring Warning board ...

Impact

Possible Cause

Solutions

The communication between the MDU and monitoring board is interrupted.

The monitoring board is disconnecte d.

Check whether the CAN cable is in loose contact. If yes, connect it securely.

The MDU is

The MDU is N/A

configuring the configuring

monitoring

the

board.

monitoring

board.

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Alarm Name
Failed to configure board

Alarm Severity
Critical

Board quantity inconsisten cy

Critical

Abnormal board power supply

Major

Main input Critical open phase

Main input Critical outage

Impact

Possible Cause

Solutions

Failed to configure the monitoring board.

The MDU version does not match the monitoring board.

Use the latest upgrade package to activate the board.

The actual number of monitoring boards is different from the configured number.

Monitori ng board fault.
The cable has become loose.

Check whether the run indicator of the monitoring board is normal. If no, replace the monitoring board.
Check whether the CAN cable is securely connected.

The voltage of N/A a power input to the monitoring board is less than 9.5 V.

Replace the monitoring board.

A phase of the input power has no voltage or has a voltage lower than the threshold (0�60 V).

The input power supply is faulty.

Check the input power.

The input power has three open phases.

The input power supply is faulty.

Check the input power.

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Alarm Name

Alarm Severity

Main input CT reverse connect

Major

Main input breaker tripping

Critical

Main input Critical overvoltage

Main input undervolta ge

Critical

Main input overfreque ncy

Major

Impact

Possible Cause

Solutions

The common N/A polarity terminal and common terminal on a phase current transformer of a mains phase are reversely connected.

Switch cables connected to the common polarity terminal and common terminal. Figure 8-1 uses dual-input as an example to show the cable connection for the common polarity terminal and common terminal of the current transformer for route I phase L1.

The mains switch has tripped.

The backend is shortcircuited or experiences overcurrent.

Check whether the back-end current is short-circuited or experiences overcurrent.

Input overvoltage: Input voltage V > 1.2 x Rated voltage (Multiple: 1.05� 1.25; confirmation time: 2�10s).

The input power supply is faulty.

Check the input power.

Input undervoltage: Input voltage V < 0.85 x Rated voltage (Multiple: 0.75� 0.95; confirmation time: 2�10s).

The input power supply is faulty.

Check the input power.

The input frequency is 1.5 Hz higher than the configured frequency. The frequency setting range is 50�60 Hz.

The input power supply is faulty.

Check the input power.

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Alarm Name

Alarm Severity

Main input underfrequ ency

Major

Main input Critical overload

Max. main input cur. exceed

Warning

Min. main input cur. exceed

Warning

Main input surge protection abnormal

Major

Main input Warning breaker off

Impact

Possible Cause

Solutions

The input frequency is 1.5 Hz lower than the configured frequency. The frequency setting range is 50�60 Hz.

The input power supply is faulty.

Check the input power.

A phase input current of a route exceeds 1 time of the rated current (multiple: 1� 1.2; confirmation time: 1�10s).

The system is overloaded.

Check all output load power.

A phase input current of a route exceeds 0.8 time of the rated current (multiple: 0.8� 1).

The system is overloaded.

Check all output load power.

A phase input N/A

N/A

current of a

route is lower

than 0.6 time

of the rated

current

(multiple: 0.6�

0.8).

Any dry contact on the SPD connecting to the mains input is disconnected.

The SPD circuit breaker is switched off, or an SPD module is damaged.

Switch on the SPD circuit breaker, or replace the SPD module.

A mains switch N/A

N/A

has changed

from ON to

OFF.

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Alarm Name

Alarm Severity

Br. circuit Critical breaker off

Branch abnormal

Warning

Branch overload

Critical

Max. br.

Major

cur. exceed

Min. br. cur. Warning exceed

Impact
A branch switch has changed from ON to OFF.
A branch switch is on, but no current is detected.
The current of a branch exceeds 1 time of the rated current (multiple: 1� 1.2; confirmation time: 1�10s).
The current of a branch exceeds 0.8 time of the rated current (multiple: 0.8� 1).
The current of a branch exceeds 0.6 time of the rated current (multiple: 0.6� 0.8; confirmation time: 1�10s).

Possible Cause

Solutions

A branch switch is off.

If you do not to display a Br. circuit breaker off, you set Br. circuit breaker off to Custom, and set the branch to Disable.
MDU path: System Info. > Setting > System Param.

No loading

If you do not to display a Branch abnormal, you set Branch abnormal to Custom, and set the branch to Disable.
MDU path: System Info. > Setting > System Param.

The branch is overloaded.

Check the load power of the branch.

The branch is overloaded.

Check the load power of the branch.

N/A

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Alarm Name

Alarm Severity

Main input br. current shock

Major

Impact

Possible Cause

Solutions

A surge current three times greater than the rated current is detected in a branch (multiple: 1.5� 5).

The insulation of the branch is abnormal.

Check the cable insulation of the output branch.

Figure 8-1 Common polarity terminal and common terminal of the transformer

(1) Common polarity terminal

(2) Common terminal

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8.3 Troubleshooting

Symptom

Possible Cause

Solution

The LCD fails to display branch currents.

The monitoring board communications cable or the secondary cable to the corresponding branch current transformer is not properly connected.
The current monitoring board or current transformer is faulty.

1. Replace the monitoring board.
2. Contact Huawei technical support.

The LCD fails to display the circuit breaker status.

The communications cable of the Boolean value collection module or the corresponding branch Boolean value signal cable is not properly connected.
The Boolean value collection module or auxiliary switch contact is faulty.

1. Replace the monitoring board.
2. Contact Huawei technical support.

The LCD is black or blinks.

The input CAN cable is disconnected.
The LCD is faulty.

Secure the input CAN cable.
Replace the MDU.

The indicators of the monitoring board do not light up.

Cables are not properly connected. The monitoring board is faulty.

1. Replace the monitoring board.
2. Contact Huawei technical support.

8.4 Parts Replacement
This document describes only the replacement method for certain components. If a faulty component to be replaced is not covered in this document, contact Huawei technical support.
8.4.1 Replacing an SPD Module
Prerequisites

DANGER Do not replace an SPD module during a thunderstorm.

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Tools: electrical tester pen, key to the PDC cabinet door, Phillips screwdriver, flat-head screwdriver
Materials: new SPD module

Procedure
Step 1 Remove the protective panel of the SPD.

NOTICE Take appropriate insulation measures to avoid electric shocks when removing the panel.
Step 2 Switch off the SPD circuit breaker. Step 3 Detect the L1, L2, L3, and N voltages to the PE using an electrical tester pen, and
verify that the faulty SPD has no voltage before replacing the faulty SPD. Figure 8-2 shows how to detect the voltages.
Figure 8-2 Detecting the voltages

Step 4 Use a flat-head screwdriver to lever the faulty SPD out. Step 5 Install a new SPD module.
Figure 8-3 Replacing an SPD Module

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NOTE If there is a faulty surge protection module, it is recommended that all surge protection modules be replaced. Step 6 Switch on the SPD circuit breaker. Step 7 Reinstall the protective panel. ----End
8.4.2 Replacing an Indicator

Prerequisites

Tools: electrical tester pen, Phillips screwdriver, key to the PDC cabinet door, multimeter, step ladder, and a pair of insulating gloves
Materials: spare functional indicator with the same model

Procedure
Step 1 Open the PDC rear door, push out the fuse terminal block, and remove the fuse of the indicator to open the circuit. For details about the fuse position and how to remove it, see 8.4.5 Replacing a Fuse.
Step 2 Open the PDC front door, and open the indicator protection panel.

Figure 8-4 Opening the indicator protection panel

Step 3 Loosen the screw at the back of the indicator using a Phillips screwdriver, and remove the cables, as shown in Figure 8-5.
NOTE
When removing cables, label the cables with corresponding terminal ports for later connection.

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Figure 8-5 Replacing an Indicator

8 Maintenance Guide

Step 4 Remove the retaining ring from the indicator and remove the indicator from the mounting hole.
Step 5 Put a new indicator into the mounting hole, secure the retaining ring, and connect the cables.
Step 6 Reinstall the fuse to reconnect the circuit. Step 7 Verify that the indicator lights up properly. Step 8 Reinstall the protective panel. Step 9 Install the fuse terminal block to its original position.
----End
8.4.3 Replacing a Common MCB
Prerequisites

DANGER
Before replacement, ensure that the input and output switches are OFF, and that the upstream and downstream switches are also OFF.

Tools: Phillips screwdriver, flat-head screwdriver, and key to the PDC cabinet door.
Materials: MCB of the appropriate model

Procedure
Step 1 Open the front door of the PDC, turn off the input and output switches in the PDC, and turn off the upstream and downstream switches.
Step 2 Remove the screws from the PDC panel, set the screws aside, and remove the panel.

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Figure 8-6 Removing the panel

8 Maintenance Guide

Step 3 Remove cables connected to the left and right sides of the MCB, as shown in Figure 8-7. NOTE
When removing cables, label the cables with corresponding terminal ports for later connection.
Figure 8-7 Removing cables

Step 4 Push the black clip of the MCB outwards. Then remove the MCB along the inner side of the PDC, as shown in Figure 8-8.

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NOTE Mark the MCB to ensure correct reinstallation.
Figure 8-8 Pushing the black clip

8 Maintenance Guide

Figure 8-9 Removing the MCB

Step 5 Install a new MCB. Step 6 Connect cables. The recommended cable hole for the MCB is shown by (1) in
Figure 8-10.
Figure 8-10 Mounting holes

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(1) mounting holes

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Step 7 Reinstall the panel on the PDC. ----End
8.4.4 Replacing a Hot-Swap MCB

Prerequisites

Tools: MCB extracting kit, Phillips screwdriver, key to the PDC door Materials: new MCB NOTE

Obtain the MCB extracting kit from the file box on the PDC front door.

Procedure
Step 1 Open the cabinet front door, and switch the MCBs to be installed to OFF. Step 2 Remove the front panel of the output module.

Figure 8-11 Removing the front panel

Step 3 Push open the handles on both sides of the MCB.

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Figure 8-12 Pushing open the handles

8 Maintenance Guide

Step 4 Remove the MCB using the MCB extracting kit.
NOTICE Install and remove MCBs using the MCB extracting kit. Do not install or remove MCBs barehanded.
Figure 8-13 Removing the MCB

Step 5 Remove the copper bars on both ends of the old MCB, and install the copper bars on a new MCB.
NOTICE Verify that the new MCB is switched to OFF before the installation.
Figure 8-14 Removing copper bars on both ends of an MCB

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Step 6 Install the new MCB using the MCB extracting kit, and close the handles on both sides of the hot-swap base.
Figure 8-15 Installing an MCB

Step 7 Reinstall the front panel. ----End
8.4.5 Replacing a Fuse
Prerequisites

Context

CAUTION When replacing a fuse, you must wear insulated gloves, and must not touch the input copper bar. Tools: insulated gloves, key to the PDC door Material: new fuse which is intact and has the same model
Fuses are located in the rear of the PDC, which uses dual-input as an example. Figure 8-16 Fuse location

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NOTE The figures are for reference only. The actual product appearance prevails.

Table 8-2 Fuse description for the single-input scenario

Fuse No.

Function

1FU1

Fuse for the yellow power indicator of input 1

1FU2

Fuse for the green power indicator of input 1

1FU3

Fuse for the red power indicator of input 1

1FU4

Fuse for phase L1 of the 220 V AC auxiliary source on the power board to the right of the first output subrack (cabinet rear view)

1FU5

Fuse for phase L2 of the 220 V AC auxiliary source on the power board to the right of the first output subrack (cabinet rear view)

1FU6

Fuse for phase L3 of the 220 V AC auxiliary source on the power board to the right of the first output subrack (cabinet rear view)

1FU7

Voltage sampling fuse of phase L3 on the power board to the right of the first output subrack (cabinet rear view)/Voltage sampling fuse of phase L1 on the power board to the left of the first output subrack (cabinet rear view)

1FU8

Voltage sampling fuse of phase L2 on the power board to the right of the first output subrack (cabinet rear view)/Voltage sampling fuse of phase L2 on the power board to the left of the first output subrack (cabinet rear view)

1FU9

Voltage sampling fuse of phase L1 on the power board to the right of the first output subrack (cabinet rear view)/Voltage sampling fuse of phase L3 on the power board to the left of the first output subrack (cabinet rear view)

1FU10

Voltage sampling fuse of phase L3 on the power board to the right of the second output subrack (cabinet rear view)/Voltage sampling fuse of phase L1 on the power board to the left of the second output subrack (cabinet rear view)

1FU11

Voltage sampling fuse of phase L2 on the power board to the right of the second output subrack (cabinet rear view)/Voltage sampling fuse of phase L2 on the power board to the left of the second output subrack (cabinet rear view)

1FU12

Voltage sampling fuse of phase L1 on the power board to the right of the second output subrack (cabinet rear view)/Voltage sampling fuse of phase L3 on the power board to the left of the second output subrack (cabinet rear view)

1FU13

Voltage sampling fuse of phase L3 on the power board to the right of the third output subrack (cabinet rear view)/Voltage sampling fuse of phase L1 on the power board to the left of the third output subrack (cabinet rear view)

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Fuse No. 1FU14
1FU15
2FU1 2FU2 2FU3

Function
Voltage sampling fuse of phase L2 on the power board to the right of the third output subrack (cabinet rear view)/Voltage sampling fuse of phase L2 on the power board to the left of the third output subrack (cabinet rear view)
Voltage sampling fuse of phase L1 on the power board to the right of the third output subrack (cabinet rear view)/Voltage sampling fuse of phase L3 on the power board to the left of the third output subrack (cabinet rear view)
Fuse for phase L1 of the 220 V AC auxiliary source on the power board to the left of the first output subrack (cabinet rear view)
Fuse for phase L2 of the 220 V AC auxiliary source on the power board to the left of the first output subrack (cabinet rear view)
Fuse for phase L3 of the 220 V AC auxiliary source on the power board to the left of the first output subrack (cabinet rear view)

Table 8-3 Fuse description for the dual-input scenario

Fuse No.

Function

1FU1/2FU1

Fuse for the yellow power indicator of input 1/Fuse for the yellow power indicator of input 2

1FU2/2FU2

Fuse for the green power indicator of input 1/Fuse for the green power indicator of input 2

1FU3/2FU3

Fuse for the red power indicator of input 1/Fuse for the red power indicator of input 2

1FU4/2FU4

Fuse for phase L1 of the 220 V AC auxiliary source on the power board to the right of the first output subrack (cabinet rear view)/Fuse for phase L1 of the 220 V AC auxiliary source on the power board to the left of the first output subrack (cabinet rear view)

1FU5/2FU5

Fuse for phase L2 of the 220 V AC auxiliary source on the power board to the right of the first output subrack (cabinet rear view)/Fuse for phase L2 of the 220 V AC auxiliary source on the power board to the left of the first output subrack (cabinet rear view)

1FU6/2FU6

Fuse for phase L3 of the 220 V AC auxiliary source on the power board to the right of the first output subrack (cabinet rear view)/Fuse for phase L3 of the 220 V AC auxiliary source on the power board to the left of the first output subrack (cabinet rear view)

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Fuse No. 1FU7/2FU7
1FU8/2FU8
1FU9/2FU9
1FU10/2FU1 0
1FU11/2FU1 1
1FU12/2FU1 2
1FU13/2FU1 3
1FU14/2FU1 4
1FU15/2FU1 5

Function
Voltage sampling fuse of phase L3 on the power board to the right of the first output subrack (cabinet rear view)/Voltage sampling fuse of phase L1 on the power board to the left of the first output subrack (cabinet rear view)
Voltage sampling fuse of phase L2 on the power board to the right of the first output subrack (cabinet rear view)/Voltage sampling fuse of phase L2 on the power board to the left of the first output subrack (cabinet rear view)
Voltage sampling fuse of phase L1 on the power board to the right of the first output subrack (cabinet rear view)/Voltage sampling fuse of phase L3 on the power board to the left of the first output subrack (cabinet rear view)
Voltage sampling fuse of phase L3 on the power board to the right of the second output subrack (cabinet rear view)/Voltage sampling fuse of phase L1 on the power board to the left of the second output subrack (cabinet rear view)
Voltage sampling fuse of phase L2 on the power board to the right of the second output subrack (cabinet rear view)/Voltage sampling fuse of phase L2 on the power board to the left of the second output subrack (cabinet rear view)
Voltage sampling fuse of phase L1 on the power board to the right of the second output subrack (cabinet rear view)/Voltage sampling fuse of phase L3 on the power board to the left of the second output subrack (cabinet rear view)
Voltage sampling fuse of phase L3 on the power board to the right of the third output subrack (cabinet rear view)/Voltage sampling fuse of phase L1 on the power board to the left of the third output subrack (cabinet rear view)
Voltage sampling fuse of phase L2 on the power board to the right of the third output subrack (cabinet rear view)/Voltage sampling fuse of phase L2 on the power board to the left of the third output subrack (cabinet rear view)
Voltage sampling fuse of phase L1 on the power board to the right of the third output subrack (cabinet rear view)/Voltage sampling fuse of phase L3 on the power board to the left of the third output subrack (cabinet rear view)

NOTE
The preceding tables use a fully configured PDC as an example. The actual cabinet configurations prevail.
*FU*-1 indicates the fuse input end, and *FU*-2 indicates the fuse output end.

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Procedure
Step 1 Push the fuse handle up outwards. Step 2 Remove the faulty fuse.
Figure 8-17 Removing a fuse

8 Maintenance Guide

Step 3 Install a new fuse, and reinstall the handle. ----End
8.4.6 Replacing a monitoring board

Prerequisites

Tool: Phillips screwdriver Materials: new monitoring board

Procedure
Step 1 Loosen the two bolts on the monitoring board, as shown by (1) in Figure 8-18. Step 2 Open the two crowbars on the monitoring board, as shown by (2) in Figure 8-18. Step 3 Gently pull out the monitoring board, as shown by (3) in Figure 8-18.

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Figure 8-18 Replacing a monitoring board

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NOTE
The monitoring board with the BOM number 02311GDJ or 02311GDJ-002 can convert AC into 12 V DC, and can be installed in all output modules of a cabinet.
The monitoring board with the BOM number 02311GDJ-001 can be installed only in output modules except output module 1.
Step 4 Install a new monitoring board. Step 5 Close the two crowbars and tighten the two bolts on the monitoring board in turn.
----End
8.4.7 Replacing an MDU

Prerequisites

Tools: Phillips screwdriver and key to the PDC cabinet door Materials: new intact MDU NOTE

The MDU can be replaced online without disconnecting the power supply.

Procedure
Step 1 Remove the communications cables from the MDU, as shown in Figure 8-19. NOTE
When removing cables, label the cables with corresponding terminal ports for later connection.
Step 2 Remove the four screws fixing the MDU and put them aside, as shown in Figure 8-19.

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Figure 8-19 Removing the MDU

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Step 3 Hold the MDU front panel by one hand, and push out the MDU from the fastener on the front panel by the other hand.
Step 4 Install the new MDU in the bracket, and secure it using screws.
Step 5 Connect the communications cables to the MDU.
Step 6 After the MDU is replaced, the new MDU automatically checks whether its configurations are consistent with the rack configuration during startup. If an inconsistency is found, the MDU displays a synchronization dialog box, as shown in Figure 8-20.
1. Click OK to synchronize the configurations. The MDU restarts. 2. If you click Cancel (not recommended), the configurations will not be
synchronized, and the MDU displays the same dialog box after the next startup.
Figure 8-20 Synchronization dialog box

----End

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8.5 Capacity Expansion Settings
Prerequisites
The PDC is configured with output modules that have hot-swap bases.

DANGER
Install MCBs using the MCB extracting kit. Do not install MCBs barehanded. Before installing an MCB, verify that it is switched to OFF. Obtain the MCB extracting kit from the file box on the PDC front door.
Capacity Expansion Principles
The capacity expansion principles vary slightly for single- and dual-input scenarios.
In the single-input scenario, install MCBs for output modules from top down and from left to right. Install MCBs fully for one output module before installing MCBs for the next output module.
In the dual-input scenario, install MCBs for added output modules from top down. Verify that the MCBs on the left and right sides are the same in number and capacity.

NOTICE
1P and 3P MCBs can be mixed up for capacity expansion, but must be installed contiguously without jumping any slot.
2P MCBs cannot be used for capacity expansion. The MCB capacity cannot exceed 63 A.

Preparations
Tools: MCB extracting kit, Phillips screwdriver Materials: MCB, MCB copper bar Skill requirement: power distribution engineer
Procedure
Step 1 Remove the front panel of the output module to be expanded. Step 2 Switch the MCBs to be installed to OFF, and install MCB copper bars at both ends.

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Figure 8-21 Installing MCB copper bars

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Step 3 Open the handles on both sides of the hot-swap base. Step 4 Snap an MCB into the hot-swap base using the MCB extracting kit, and close the
handles on both sides. Figure 8-22 Installing an MCB
Step 5 Install all other MCBs in the same way according to the capacity expansion principles. NOTE
The number of MCBs to be installed vary depending on site requirements. Each reserved label code corresponds to one 1P MCB. A 3P MCB takes up three label
codes.
Step 6 Reinstall the front panel. Step 7 Tap Maint. on the System Info. screen to enter the Expansion Settings screen.

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Figure 8-23 Capacity expansion settings

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NOTE Second method for setting capacity expansion: Turn on the MCB. The dialog box for setting capacity expansion is displayed on the MDU. If you do not want to set capacity expansion, cancel the displayed dialog box for setting capacity expansion for three consecutive times to cancel capacity expansion settings. Step 8 Tap Add to set the MCB quantity, phases, and capacity. Figure 8-24 Adding an MCB
Step 9 (Optional) If an MCB is incorrectly set, tap the MCB and then tap Modify to correct the phases and capacity. Figure 8-25 Modifying MCB settings

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Step 10 (Optional) If more MCBs are added than necessary, tap the extra MCB and then tap Delete.

Figure 8-26 Deleting an MCB

Step 11 After verifying that all added MCBs are correctly set, tap Save Settings. Step 12 The MDU automatically restarts, and the capacity expansion setting is complete.
----End
8.6 Changing Alias
Procedure
Step 1 On the main screen, tap Operating Status to access the screen and query the circuit breaker status of the mains and branches.
Step 2 Tap screen and change alias.

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Figure 8-27 Changing alias

8 Maintenance Guide

----End

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A PDC Silk Screen Description

The silk screen content is in the format of route number + symbol + switch sequence number. In the single-input scenario, the route number is omitted by default.

Table A-1 Symbols Symbol QF FU QFS FS

Name Circuit breaker Fuse SPD circuit breaker SPD

The silk screen content is in the format of route number + symbol + switch sequence number. In the single-input scenario, the route number is omitted by default. Symbols in the conceptual diagram are described as follows:
NOTE
QF: input switch when there is a single input. QF1: first switch when there is a single input. 1QF: input circuit breaker for route I when there are two inputs. 2QF: input circuit breaker for route II when there are two inputs. 1QF1: first switch of route I when there are two inputs. 2QF1: first switch of route II when there are two inputs.

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B PDC Label Description

Table B-1 Label description

Picture

Description

Picture

Located on the bottom or top panel to indicate the cabinet front

Internal equipotential connection label

Description
Located on the bottom or top panel to indicate the cabinet rear
General ground point

Copper bar or cable of phase L1

Copper bar or cable of phase L2

Copper bar or cable of phase L3

Phase L1 input of copper bar I

Phase L2 input of copper bar I

Phase L3 input of copper bar I

Phase L1 input of copper bar II

Phase L2 input of copper bar II

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Picture

Description
Phase L3 input of copper bar II

Picture

B PDC Label Description
Description Phase N input of copper bar I

Phase N input of copper bar II

N bar when there is only one input

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C Acronyms and Abbreviations

A AC APP ATS
B BSP
C CAN CCC CE CT CU
D DES DHCP DIP
F FE
I IP ID

alternating current Application AC transfer switch
bottom support program
control area network China Compulsory Certification conformite europende current transformer Control Union
Data Encryption Standard Dynamic Host Configuration Protocol dual inline-pin package
fast Ethernet
Internet Protocol identity

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IT
L LCD LUI
M MD5 MCB MCCB MDU
O ODM
P PE
R RS485
S SNMP SN
U USB UPS

C Acronyms and Abbreviations Internet technology
liquid crystal display LCD user interface
message digest algorithm 5 miniature circuit breaker molded case circuit breaker monitor display unit
original design & manufacture
protective earthing
Recommend Standard 485
Simple Network Management Protocol serial number
Universal Serial Bus uninterruptible power system

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