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User Manual: Baldor VS1MD to the manual

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Errata Sheet
Table of Contents
Chapter 1 - Introduction
Chapter 2 - General Information and Ratings
Chapter 3 - Installing the Drive
Chapter 4 - Power Wiring
Chapter 5 - Control Wiring
Chapter 6 - Using the Keypad
Chapter 7 - Parameter Descriptions
Chapter 8 - Customizing for Your Application
Chapter 9 - Troubleshooting
Appendix A - Technical Specifications
Appendix B - Options & Kits
Appendix C - RS485 Protocol
Document Improvement Form

Instruction Manual

VS1MD User Manual

MN760-3

6/07

The information in this manual is subject to change without notice.

Safety Notice

This equipment contains voltages that may be as high as 1000 volts! Electrical shock can cause serious or

fatal injury. Only qualified personnel should attempt the start-up procedure or troubleshoot this equipment.

This equipment may be connected to other machines that have rotating parts or parts that are driven by this

equipment. Improper use can cause serious or fatal injury. Only qualified personnel should attempt the start-

up procedure or troubleshoot this equipment.

Precautions

WARNING: Do not touch any circuit board, power device or electrical connection before you

first ensure that power has been disconnected and there is no high voltage present from this

equipment or other equipment to which it is connected. Electrical shock can cause serious or fatal

injury. Only qualified personnel should attempt the start-up procedure or troubleshoot this

equipment.

WARNING: Do not touch any circuit board, power device or electrical connection before you

first ensure that power has been disconnected and there is no high voltage present from this

equipment or other equipment to which it is connected. Electrical shock can cause serious or fatal

injury. Only qualified personnel should attempt the start-up procedure or troubleshoot this

equipment.

WARNING: Be sure that you are completely familiar with the safe operation of this equipment.

This equipment may be connected to other machines that have rotating parts or parts that are

controlled by this equipment. Improper use can cause serious or fatal injury. Only qualified

personnel should attempt the start-up procedure or troubleshoot this equipment.

WARNING: Do not use motor overload relays with an automatic reset feature. These are

dangerous since the process may injure someone if a sudden or unexpected automatic restart

occurs. If manual reset relays are not available, disable the automatic restart feature using external

control wiring.

WARNING: Do not use motor overload relays with an automatic reset feature. These are

dangerous since the process may injure someone if a sudden or unexpected automatic restart

occurs. If manual reset relays are not available, disable the automatic restart feature using external

control wiring.

WARNING: This unit has an automatic restart feature that will start the motor whenever input

power is applied and a RUN (FWD or REV) command is issued. If an automatic restart of the

motor could cause injury to personnel, the automatic restart feature of the VS1MSD should be

disabled.

WARNING: Be sure the system is properly grounded before applying power. Do not apply AC

power before you ensure that all grounding instructions have been followed. Electrical shock can

cause serious or fatal injury.

Precautions: Classifications of cautionary statements

WARNING: Indicates a potentially hazardous situation which, if not avoided, could result in injury

or death.

CAUTION: Indicates a potentially hazardous situation which, if not avoided, could result in

damage to property.

-3

WARNING: Do not remove cover for at least five (5) minutes after AC power is disconnected

to allow capacitors to discharge. Dangerous voltages are present inside the equipment. Electrical

shock can cause serious or fatal injury.

WARNING: Improper operation of control may cause violent motion of the motor shaft and driven

equipment. Be certain that unexpected motor shaft movement will not cause injury to personnel

or damage to equipment. Certain failure modes of the control can produce peak torque of several

times the rated motor torque.

WARNING: Motor circuit may have high voltage present whenever AC power is applied, even

when motor is not rotating. Electrical shock can cause serious or fatal injury.

WARNING: Dynamic brake resistors may generate enough heat to ignite combustible materials.

Keep all combustible materials and flammable vapors away from brake resistors.

WARNING: The motor shaft will rotate during the touting procedure. Be certain that unexpected

motor shaft movement will not cause injury to personnel or damage to equipment.

CAUTION: Disconnect motor leads (U, V & W) from control before you perform a “Megger” test

on the motor. Failure to disconnect motor from the control will result in extensive damage to the

control. The control is tested at the factory for high voltage / leakage resistance as part of

Underwriter Laboratory requirements.

CAUTION: Suitable for use on a circuit capable of delivering not more than the RMS

symmetrical short circuit amperes listed here at rated voltage.

CAUTION: Do not connect AC power to the Motor terminals U, V and W. Connecting AC power

to these terminals may result in damage to the control.

CAUTION: Baldor recommends not to use "Grounded Leg Delta" transformer power leads that

may create ground loops. Instead, we recommend using a four wire Wye.

CAUTION: Only Baldor cables should be used to connect the keypad and control. These are

special cables to protect the control and keypad. Damage associated with other cable types are

not covered by the Baldor warranty.

CAUTION: If an M-Contactor is installed, the control must be disabled for at least 200msec

before the M-Contactor is opened. If the M-Contactor is opened while the control is supplying

voltage and current to the motor, the control may be damaged. Before the control is enabled, the

M-Contactor must be closed for at least 200msec.

CAUTION: Use of power correction capacitors on the output of the drive can result in erratic

operation of the motor, nuisance tripping, and/or permanent damage to the drive. Remove power

correction capacitors before proceeding. Failure to observe this precaution could result in damage

to, or destruction of, the equipment.

Horsepower RMS Symmetrical Ampheres

1-30 5,000

-4 VS1MD AC Drive User Manual

Errata Sheet for the VS1MD Drive Installation & Operating Manual

VS1MD ERRATA SHEET

1.1 Change from Main Source to 2nd Source

The function of parameters P46 and P47 has been changed. A digital input can now

select between the main control and speed setting selected in parameters P38 and

P40 and the secondary source set in parameters P46 and P47. A digital input

programmed in t1 to t8 must be set to “22” Exchange between second source and

drive.

1.2 Parameters

P46 Drive Start/Stop Source 2

Range: 0 to 3 (see table for P38)

Default: 0 = Keypad

Access: Configurable

See Also: t32 and t33

Sets the off delay timer for the digital output.

Output

MO or Relay State

On Delay Tme On Delay Time

Output

MO or Relay State

Off Delay Time Off Delay Time

Contents I

Table of Contents

Chapter 1 Introduction

1.1 Getting Assistance from Baldor.......................................................................1-1

Chapter 2 General Information and Ratings

2.1 Identifying the Drive by Model Number ........................................................... 2-1

2.2 VS1-MD Drive Ratings, Model Numbers and Frame Sizes............................. 2-2

2.3 Storage Guidelines ..........................................................................................2-2

Chapter 3 Installing the Drive

3.1 General Requirements for the Installation Site................................................ 3-1

3.2 Mounting the Drive ..........................................................................................3-5

3.3 Watts Loss Data ..............................................................................................3-6

Chapter 4 Power Wiring

4.1 Grounding the Drive ........................................................................................ 4-1

4.2 Connecting Peripheral Devices to the VS1-MD Drive ..................................... 4-3

4.3 Power Terminal Wiring .................................................................................... 4

4.4 Specifications for Power Terminal Block Wiring .............................................4-5

4.5 Recommended Breakers................................................................................. 4

4.6 Recommended AC Reactors........................................................................... 4-6

Chapter 5 Control Wiring

5.1 Stop Circuit Requirements............................................................................... 5-1

5.2 Motor Start/Stop Precautions ..........................................................................5-2

5.3 Terminal Wiring (Control I/O)........................................................................... 5-3

5.4 Control Terminal Specifications.......................................................................5

5.5 Source/Sync for Input Control Wiring .............................................................. 5-5

5.6 I/O Wiring Recommendations..........................................................................5-6

5.7 Technical Specifications.................................................................................. 5-6

Chapter 6 Using the Keypad

6.1 Keypad Components ....................................................................................... 6-1

6.2 LED Descriptions............................................................................................. 6-2

6.3 Key Descriptions.............................................................................................. 6-2

6.4 About Parameters............................................................................................ 6-3

6.5 How Parameters are Organized...................................................................... 6-4

6.6 Moving Between Parameter Groups ............................................................... 6-4

6.7 Changing Between Parameters Within a Group.............................................. 6-6

6.8 Modifying the Value of a Parameter ................................................................6-8

6.9 Monitoring Display Parameters ..................................................................... 6-10

6.10 Reviewing the Fault Status in the Display Group .......................................... 6-11

6.11 Resetting the Parameters to Factory Default ................................................6-12

Chapter 7 Parameter Descriptions

7.1 Overview.......................................................................................................... 7-1

7.2 Display Group Parameters .............................................................................. 7-2

7.3 Basic Group Parameters ................................................................................. 7-5

7.4 Terminal Paramters....................................................................................... 7-12

7.5 Function Group 1 Parameters ....................................................................... 7-28

7.6 Function Group 2 Paramters ......................................................................... 7-40

II VS1MD User Manual

Chapter 8 Customizing for Your Application

8.1 Frequency Mode ..............................................................................................8-1

8.2 UP-Down..........................................................................................................8

8.3 3-Wire ..............................................................................................................8

8.4 PID Control.....................................................................................................8

8.5 Auto-tuning.....................................................................................................8-

8.6 Sensorless Vector Control .............................................................................8

8.7 Speed Search ...............................................................................................8

8.8 Self-Diagnostic Function ................................................................................8-17

8.9 Parameter Read/Write ...................................................................................8

8.10 Parameter Initialization / Lock........................................................................8-19

8.11 Multi-function Output Terminal (MO) and Relay (3AC) ..................................8

8.12 Accel/Decel setting and V/F Control ..............................................................8-27

8.13 Control Block Diagram ...................................................................................8-28

8.14 Frequency and Drive Mode Setting................................................................8-29

Chapter 9 Troubleshooting

9.1 Verifying that DC Bus Capacitors are Discharged Before

Servicing the Drive..........................................................................................9-1

9.2 Determining Drive Status Using the STP/FLT LED..........................................9-2

9.3 Monitoring Drive Status Using the Display Parameters ...................................9-2

9.4 Reviewing Fault Status of the Drive.................................................................9-3

9.5 Fault Codes......................................................................................................9-3

9.6 Fault Correction................................................................................................9-6

9.7 Overload Protection .........................................................................................9-8

Appendix A Technical Specifications........................................................................................ A-1

Appendix B Options & Kits

B.1 Remote Option................................................................................................ B-1

B.2 Conduit Kit....................................................................................................... B-4

B.3 Breaking Resistor............................................................................................ B-8

Appendix C RS485 Protocol

C.1 Introduction .....................................................................................................C-1

C.2 Specifications..................................................................................................C-2

C.3 Installation....................................................................................................... C-3

C.4 Operation ........................................................................................................C-3

C.5 Communication Protocol (MODMUS-RTU).....................................................C-4

C.6 Communication Protocol (LS BUS).................................................................C-4

C.7 Troubleshooting .............................................................................................. C-7

Introduction 1-1

CHAPTER 1

Introduction

This manual is intended for qualified electrical personnel familiar with installing,

programming, and maintaining AC Drives.

This manual contains information on:

•Installing and wiring the VS1MD drive

•Programming the drive

•Troubleshooting the drive

1.1 Getting Assistance from Baldor

For technical assistance, call 1-864-284-5444. Before calling, please review the

troubleshooting section of this manual and check the Baldor Drives website at

www.reliance.com/vsdrives for additional information. When you call technical

support, you will be asked for the drive model number or catalog number and this

instruction manual number.

1-2 VS1MD AC Drive User Manual

General Information and Ratings 2-1

CHAPTER 2

General Information and Ratings

The VS1MD is a variable frequency PWM drive capable of operating in open-loop,

volts-per-hertz mode and in a sensorless vector control (SVC) mode.

This chapter contains information about the VS1MD drive, including how to identify

the drive.

2.1 Identifying the Drive by Model Number

Each drive can be identified by its model number, as shown in figure 2.1. The model

number is on the shipping label and the drive nameplate. The model number includes

the drive and any options.

Drive model numbers for the VS1MD drive are provided in table 2.1.

Figure 2.1 – Identifying the Drive by Model Number

VS1 MD 4 10

0P5 = 0.5HP

1 = 1HP

2 = 2HP

3 = 3HP

5 = 5HP

7 = 7.5 HP

10 = 10HP

Voltage:

2 = 230V

4 = 460V

Family

MD = Microdrive

2-2 VS1MD AC Drive User Manual

2.2 VS1MD Drive Ratings, Model Numbers and Frame

Sizes

Similar VS1MD drive sizes are grouped into frame sizes to simplify re-ordering and

dimensioning. Refer to figures 3.2 through 3.5 for the dimensions of each frame size.

Table 2.1 provides VS1MD drive ratings, model numbers and frame sizes.

2.3 Storage Guidelines

If you need to store the drive, follow these recommendations to prolong drive life and

performance:

•Store the drive within an ambient temperature range of -40o to +70 Co.

•Store the drive within a relative humidity range of 0% to 90%, non-condensing.

Do not expose the drive to a corrosive atmosphere.

Table 2.1 – Drive Ratings, Model Numbers and Frame Sizes

Drive Ratings Model Number Frame

Size

Input Voltage kW HP Output

Current

200-230V

3-Phase

0.4 0.5 2.5 VS1MD20P5 A

0.75 1.0 4.5 VS1MD21 A

1.5 2.0 8.0 VS1MD22 B

2.2 3.0 12.0 VS1MD23 C

3.7 5.0 17.0 VS1MD25 C

5.5 7.5 24.0 VS1MD27 D

7.5 10 32.0 VS1MD210 D

380-480V

3-Phase

0.4 0.5 1.25 VS1MD40P5 A

0.75 1.0 2.5 VS1MD41 A

1.5 2.0 4.0 VS1MD42 B

2.2 3.0 6.0 VS1MD43 C

3.7 5.0 8.0 VS1MD45 C

5.5 7.5 12.0 VS1MD47 D

7.5 10.0 16.0 VS1MD410 D

Installing the Drive 3-1

CHAPTER 3

Installing the Drive

This chapter provides information that must be considered when planning a VS1MD

drive installation and provides drive mounting information and installation site

requirements.

3.1 General Requirements for the Installation Site

It is important to properly plan before installing a VS1MD to ensure that the drive’s

environment and operating conditions are satisfactory.

The area behind the drive must be kept clear of all control and power wiring. Power

connections may create electromagnetic fields that may interfere with control wiring or

components when run in close proximity to the drive.

Read the recommendations in the following sections before continuing with the drive

installation.

ATTENTION: Only qualified electical personnel familiar with the

construction and operation of this equipment and the hazards involved

should install, adjust, operate, or service this equipment. Read and

understand this manual and other applicable manuals in their entirety

before proceeding. Failure to observe this precaution could result in

severe bodily injury or loss of life.

ATTENTION: Use of power correction capacitors on the output of

the drive can result in erratic operation of the motor, nuisance tripping,

and/or permanent damage to the drive. Remove power correction

capacitors before proceeding. Failure to observe this precaution could

result in damage to, or destruction of, the equipment.

ATTENTION: The user is responsible for conforming with all

applicable local, national, and international codes. Failure to observe

this precaution could result in damage to, or destruction of, the

equipment.

3-2 VS1MD AC Drive User Manual

3.1.1 Operating Conditions

Before deciding on an installation site, consider the following guidelines:

•Protect the cooling fan by avoiding dust or metallic particles.

•Do not expose the drive to a corrosive atmosphere.

•Protect the drive from moisture and direct sunlight.

•Verify that the drive location will meet the environmental conditions specified in table

3.1.

3.1.2 Minimum Mounting Clearances

Refer to figure 3.1 for the minimum mounting clearances. Refer to section 3.1 for drive mounting

dimensions.

Table 3.1 – Ambient Temperatures and Mounting Clearances

Ambient Temperature Enclosure Rating Minimum Mounting

Clearances

Minimum Maximum

-10o C

(14o F)

50o C

(122o F)

IP20/Open Type 5 cm

40o C

(104o F)

IP20/NEMA 1 5 cm

50o C

(122o F)

Side-by-Side 5 cm

Figure 3.1 – Minimum Mounting Clearances

5 cm

(1.0 in)

Installing the Drive 3-3

3.1.3 Mounting Dimensions for the VS1MD Drive

Overall dimensions and weights are illustrated in figures 3.2, 3.3, 3.4 and 3.5 as an aid to

calculating the total area required by the VS1-MD drive. Dimensions are in millimeters. Weights

are in kilograms. See table 2.1 for drive ratings by frame.

Frame Size A HP W W1 H H1 D A B kg

230V/460V 0.5 70 65.5 128 119 130 4.5 4.0 0.76

230V/460V 1.0 70 65.5 128 119 130 4.5 4.0 0.77

Figure 3.2 – Drive Dimensions and Weights Frame A

3-4 VS1MD AC Drive User Manual

Frame Size B HP W W1 H H1 D A B kg

230V/460V 2.0 100 95.5 128 120 130 4.5 4.5 1.12

Figure 3.3 – Drive Dimensions and Weights Frame B

Frame Size C HP W W1 H H1 D A B kg

230V/460V 3.0 140 132 128 120.5 155 4.5 4.5 1.84

230V/460V 5.0 140 132 128 120.5 155 4.5 4.5 1.89

Figure 3.4 – Drive Dimensions and Weights Frame C

Installing the Drive 3-5

3.2 Mounting the Drive

Mount the drive upright on a flat, vertical, and level surface.

3.2.1 Protecting the Drive from Debris

The drive must be protected from debris falling through the vents in the top of the drive

during installation and operation. The drive is designed to operate in IP20/Open Type

application mounted in a protective enclosure. A conduit kit is available as an option

which provides a top panel to block the top vents and prevent debris from entering the

drive.

Frame Size D HP W W1 H H1 D A B kg

230V/460V 7.5 180 170 220 210 170 5.0 4.5 3.66

230V/460V 10.0 180 170 220 210 170 5.0 4.5 3.66

Figure 3.5 – Drive Dimensions and Weights Frame D

Table 3.1 – Mounting Specifications

Frame Screw Size Screw Torque

A M3.5 (#6-32) 0.67 - 0.97 N-m (6 - 8 in-lb)

B M4 (#8-32) 1.56 - 1.96 N-m (14 -17 in-lb)

C M4 (#8-32) 1.56 - 1.96 N-m (14 -17 in-lb)

D M4 (#8-32) 1.56 - 1.96 N-m (14 -17 in-lb)

3-6 VS1MD AC Drive User Manual

3.3 Watts Loss Data

Table 3.2 – Watts Loss Data

Model # HP Frame Watts Loss

230 Volts

VS1MD20P5 0.5 A 13

VS1MD21 1.0 A 28

VS1MD22 2.0 B 18

VS1MD23 3.0 C 56

VS1MD25 5.0 C 98

VS1MD27 7.5 D 73

VS1MD210 10.0 D 70

460 Volts

VS1MD40P5 0.5 A 9

VS1MD41 1.0 A 22

VS1MD42 2.0 B 32

VS1MD43 3.0 C 47

VS1MD45 5.0 C 94

VS1MD47 7.5 D 84

VS1MD410 10.0 D 113

Power Wiring 4-1

CHAPTER 4

Power Wiring

4.1 Grounding the Drive

The drive Safety Ground - must be connected to system ground. Ground impedance must

conform to the requirements of national and local industrial safety regulations and/or electrical

codes. The integrity of all ground connections should be periodically checked.

Ground Fault Monitoring

If a system ground fault monitor is to be used, only Type B devices should be used to

avoid nuisance tripping.

Safety Ground -

This is the safety ground for the drive that is required by code. One of these points must be

connected to adjacent building steel (girder, joist), a floor ground rod, or bus bar. Grounding

points must comply with national and local industrial safety regulations and/or electrical codes.

Motor Ground

The motor ground must be connected to one of the ground terminals on the drive.

ATTENTION:The following information is merely a guide for proper

installation. Baldor Electric Company cannot assume responsibility for

the compliance or the noncompliance to any code, national, local or

otherwise for the proper installation of this drive or associated equipment.

A hazard of personal injury and/or equipment damage exists if codes are

ignored during installation.

ATTENTION:Use the dedicated ground terminal to ground the drive. Do

not use the screw in the case or chassis, etc for grounding.

Figure 4.1 – Typical Grounding

SHLD

4-2 VS1MD AC Drive User Manual

Shield Termination - SHLD

Either of the safety ground terminals provides a grounding point for the motor cable shield. The

motor cable shield connected to one of these terminals (drive end) should also be connected to

the motor frame (motor end). Use a shield terminating or EMI clamp to connect the shield to the

safety ground terminal.

When shielded cable is used for control and signal wiring, the shield should be grounded at

the source end only, not at the drive end.

4.1.1 RFI Filter Grounding

Using drives with RFI filters may result in relatively high ground leakage currents. Therefore, the

filter must only be used in installations with grounded AC supply systems and be

permanently installed and solidly grounded (bonded) to the building power distribution

ground.

Ensure that the incoming supply neutral is solidly connected (bonded) to the same building

power distribution ground. Grounding must not rely on flexible cables and should not include

any form of plug or socket that would permit inadvertent disconnection. Some local codes may

require redundant ground connections. The integrity of all connections should be periodically

checked.

4.1.2 Grounding Procedure

Step 1. Remove the front cover.

Step 2. Connect the Grounding wire to the ground terminal through the opening for

ground terminal. Enter the screw driver from vertical to the terminal and

secure the screw tightly.

4.1.3 Grounding Guidelines

Table 4.1 – Grounding Guidelines

Inverter

capacity

200V Class 400V Class

Wire

size Terminal

screw Grounding

method Wire

size Terminal

screw Grounding

method

0.5 HP 3.5 mm2M3 Type 3 2 mm2M3 Special Type 3

1.0 HP 3.5 mm2M3 2 mm2M3

2.0 HP 3.5 mm2M3 2 mm2M3

3.0 HP 3.5 mm2M3 2 mm2M3

7.5 HP 5.5 mm2M4 3.5 mm2M4

Power Wiring 4-3

4.2 Connecting Peripheral Devices to the VS1MD Drive

The following devices are required to operate the VS1MD drive.

ATTENTION:Appropriate peripheral devices must be selected and

correct connections made to ensure proper operation. You must read and

understand this manual thoroughly before proceeding. Failure to observe

this precaution could result in damage to, or destruction of, the equipment.

Table 4.2 – Peripheral Devices for the VS1MD Drive

AC Source Supply Use a power supply within the

permissible range for the drive’s

input power rating.

MCCB or Earth leakage

circuit breaker (ELB) Select circuit breakers with care. A

large inrush current may flow in the

converter when power is turned on.

Magnetic Contactor Install a magnetic contactor if

necessary. When installed, do not

use the contactor for the purpose of

starting or stopping.

Reactors Reactors must be used when the

power factor needs to be improved

or the drive is installed within 10 m

of a large power supply system

(1000kVA or more).

Installation and wiring To ensure optimal operation and

life span of the drive, install it in an

approriate place with proper

orientation and clearances.

Incorrect terminal wiring can result

in damage to the equipment.

To motor Do not connect a power factor

capacitor, surge suppresor, or radio

noise filter to the output side of the

drive.

4-4 VS1MD AC Drive User Manual

4.3 Power Terminal Wiring

Figure 4.2 – Power Terminal Wiring

AC Line

Voltage

input

reistor

connect

ion

terminal

Motor

connect

ion

terminal

Ground

Power Wiring 4-5

4.4 Specifications for Power Terminal Block Wiring

VS1MD20P5, VS1MD21, VS1MD40P5, VS1MD41, VS1MD22, VS1MD42

VS1MD23, VS1MD43, VS1MD25, VS1MD45

VS1MD27, VS1MD210, VS1MD47, VS1MD410

* Strip the sheaths of the wire insulation 7mm when a ring terminal is not used for

power connection.

RSTB1B2

UVW

RSTB1B2UVW

B1 B2 U V W

RST

Model

Number

R,S,T

wire size U, V, W

wire size Ground Wire Screw

size Terminal

torque

mm2AWG mm2AWG mm2AWG Terminal

Screw

Size

Screw

Torque

(Kgf.cm/lb-in)

VS1MD20P5 2 14 2 14 3.5 12 M3.5 10/8.7

VS1MD21 2 14 2 14 3.5 12 M3.5 10/8.7

VS1MD22 2 14 2 14 3.5 12 M3.5 10/8.7

VS1MD23 2 14 2 14 3.5 12 M4 15/13

VS1MD25 3.5 12 3.5 12 3.5 12 M4 15/13

VS1MD27 5.5 10 5.5 10 5.5 10 M5 32/28

VS1MD10 8 8 8 8 5.5 10 M5 32/28

VS1MD40P5 2 14 2 14 2 14 M3.5 10/8.7

VS1MD41 2 14 2 14 2 14 M3.5 10/8.7

VS1MD42 2 14 2 14 2 14 M4 15/13

VS1MD43 2 14 2 14 2 14 M4 15/13

VS1MD45 2 14 2 14 2 14 M4 15/13

VS1MD47 3.5 12 2 14 3.5 12 M5 32/28

VS1MD410 3.5 12 3.5 12 3.5 12 M5 32/28

4-6 VS1MD AC Drive User Manual

4.5 Recommended Breakers

4.6 Recommended Fuses and AC Reactors

Table 4.3 – Circuit Breaker Ratings by Model Number

Model Breaker Model Breaker

Current[A] Voltage[V] Current[A] Voltage[V]

VS1MD20P5 30 230 VS1MD40P5 30 460

VS1MD21 30 230 VS1MD41 30 460

VS1MD22 30 230 VS1MD42 30 460

VS1MD23 30 230 VS1MD43 30 460

VS1MD25 30 230 VS1MD45 30 460

VS1MD27 50 230 VS1MD47 30 460

VS1MD10 60 230 VS1MD410 30 460

Model External fuse AC reactor

Current[A] Voltage[V]

VS1MD20P5 10 A 500 4.20mH, 3.5A

VS1MD21 10 A 500 2.13mH, 5.7A

VS1MD22 15 A 500 1.20mH, 10A

VS1MD23 25 A 500 0.88mH,14A

VS1MD25 40 A 500 0.56mH, 20A

VS1MD27 40 A 500 0.39mH, 30A

VS1MD210 50 A 500 0.28mH, 40A

VS1MD40P5 5 A 500 18.0mH, 1.3A

VS1MD41 10 A 500 8.63mH, 2.8A

VS1MD42 10 A 500 4.81mH, 4.8A

VS1MD43 10 A 500 3.23mH, 7.5A

VS1MD45 20 A 500 2.34mH, 10A

VS1MD47 20 A 500 1.22mH, 15A

VS1MD4100 30 A 500 1.14mH, 20A

ATTENTION:Suitable For Use On A Circuit Capable Of Delivering

Not More Then 65,000 RMS Symmetrical Amperes. 240V drives

or 480V drives Volts Maximum

ATTENTION:Use Class H or K5 UL Listed Input Fuse and UL

Listed Breaker Only. See the table above for the voltage and current

rating of the fuse and the breaker.

Power Wiring 4-7

4.7 Reflected Wave Protection

When more than one motor is connected to one inverter, total wiring length should be

less than 200m (656ft). Do not use a 3-wire cable for long distances. Due to increased

leakage capacitance between wires, over-current protective feature may operate or

equipment connected to the output side may malfunction. In case of long wire length,

lower carrier frequency or contact Baldor for recommendations.

Table 4.4 – Wire Length Recommendations

Length Between Inverter and Motor Allowable Carrier Frequency

Up to 50 meters Less than 15 kHz

Up to 100 meters Less than 5 kHz

More than 100 meters Less than 2.5 kHZ

4-8 VS1MD AC Drive User Manual

Control Wiring 5-1

CHAPTER 5

Control Wiring

This chapter describes how to wire the signal and I/O terminal strip for stop, speed

feedback, and remote control signals.

5.1 Stop Circuit Requirements

In addition to the operational stop, you must provide a hardwired emergency stop

external to the drive. The emergency stop circuit must contain only hardwired

electromechanical components. Operation of the emergency stop must not depend on

electronic logic (hardware or software) or on the communication of commands over an

electronic network or link. Note that the hardwired emergency stop you install can be

used at any time to stop the drive.

ATTENTION:Apply the rated torque to terminal screws. Loose screws

can cause short circuit and malfunction. Tightening the screws too much

can damage the terminals and cause short circuit and malfunction.

ATTENTION:Make sure the input power is off before wiring.

ATTENTION:After power supply is switched off following operation, wait

at least 10 minutes after LED keypad display is off before you start

working on it.

ATTENTION:Applying input power supply to the output terminals U, V

and W causes internal inverter damage.

ATTENTION:Use ring terminals with insulated caps when wiring the

input power and motor wiring.

ATTENTION:Do not leave wire fragments inside the inverter. Wire

fragments can cause faults, breakdowns and malfunctions.

ATTENTION:When more than one motor is connected to one inverter,

total wiring length should be less than 200m (656ft). Do not use a 3-wire

cable for long distances. Due to increased leakage capacitance between

wires, over-current protective feature may operate or equipment

connected to the output side may malfunction. In case of long wire

length, lower carrier frequency or contact Baldor for recommendations.

ATTENTION:Never short B1 and B2 terminals. Shorting terminals may

cause internal inverter damage.

ATTENTION:Do not install a power factor capacitor, surge suppressor

or RFI filter in the output side of the inverter. Doing so may damage

these components.

ATTENTION:You must provide an external, hardwired emergency

stop circuit outside of the drive circuitry. This circuit must disable the

system in case of improper operation. Uncontrolled machine

operation can result if this procedure is not followed. Failure to observe

this precaution could result in bodily injury.

5-2 VS1MD AC Drive User Manual

5.2 Motor Start/Stop Precautions

Important points to remember about I/O wiring:

•Always use copper wire.

•Wire with an insulation rating of 600V or greater is recommended.

•Control and signal wires should be separated from power wires by at least 0.3

meters (1 foot).

Important: I/O terminals labeled “Common” are not referenced to the safety ground

terminal and are designed to greatly reduce common mode interference.

ATTENTION:A contactor or other device that routinely disconnects and

reapplies the AC line to the drive to start and stop the motor can cause

drive hardware damage. The drive is designed to use control input

signals that will start and stop the motor. If used, the input device must

not exceed one operation per minute or drive damage can occur. Failure

to observe this precaution can result in damage to, or destruction of,

equipment.

ATTENTION:The drive start/stop control circuitry includes solid-state

components. If hazards due to accidental contact with moving

machinery or unintentional flow of liquid, gas or solids exist, an

additional hardwired stop circuit may be required to remove the AC line

to the drive. When the AC line is removed, there will be a loss of any

inherent regenerative braking effect that might be present - the motor

will coast to a stop. An auxiliary braking method may be required.

ATTENTION:Driving the 4-20 mA analog input from a voltage source

could cause component damage. Verify proper configuration prior to

applying input signals.

Control Wiring 5-3

5.3 Terminal Wiring (Control I/O)

T/M Description

MO Multi-function open collector output

MG MO Common

24 24V output

P1 FX: Forward run

MF input terminal

(factory setting) RX: Reverse run

CM Input signal common

P3 BX: Stop

P4 RST: Trip reset

MF input terminal

(factory setting)

JOG: Jog operation

CM Input signal common

MF input terminal

(factory setting)

VR 10V power supply for potentiometer

V1 Freq. Setting Voltage signal input: -0~10V

IFreq. Setting Current signal input: 0~20mA

AM Multi-function analog output signal: 0~10V

3A A contact output N.O.

3B B contact output N.C.

Multi-function relay

output terminal

A/B contact common

S+

S- RS485 communication terminal

#For connection to Remote Option or

parameter copying

Preset Speed Input 1

Preset Speed Input 2

Preset Speed Input 3

5-4 VS1MD AC Drive User Manual

5.4 Control Terminal Specifications

MO MG 24 P1 P2 CM P3 P4 S- S+

3A 3B 3C P5 CM P6 P7 P8 VR V1 I AM

T/M Terminal Description Wire size[mm2]Screw

size Torque

[Nm] Specification

solid

wire stranded

Multi-function digital input

T/M 1-8 1.0 1.5 M2.6 0.4

CM Common Terminal 1.0 1.5 M2.6 0.4

VR Power supply for external

speed potentiometer 1.0 1.5 M2.6 0.4 Output Voltage: 12 V

Max output current: 10mA

Potentiometer: 1 - 5 kohm

V1 Input terminal for Voltage

operation 1.0 1.5 M2.6 0.4 Max input voltage:

-12V - +12V input

I Input terminal for Current

operation 1.0 1.5 M2.6 0.4 0 - 20 mA input

Internal Resister: 250 ohm

AM Multi-function analog

output terminal 1.0 1.5 M2.6 0.4 Max output voltage: 11 V

Max output current:

100mA

MO Multi-function terminal for

open collector output 1.0 1.5 M2.6 0.4 Below DC 26V, 100mA

MG Ground terminal for

external power supply 1.0 1.5 M2.6 0.4

24 24V External Power

Supply 1.0 1.5 M2.6 0.4 Max output current:

100mA

3A Multi-function relay

output A contact N.O. 1.0 1.5 M2.6 0.4 Below AC 250V, 1A

3B Multi-function relay

output B contact N.C. 1.0 1.5 M2.6 0.4 Below DC 30V, 1A

3C Common for

Multi-function relays 1.0 1.5 M2.6 0.4

Control Wiring 5-5

5.5 Source/Sync for Input Control Wiring

2. When using external DC 24V [Sink ]

1. When using DC 24V inside inverter [Source]

SW S8

DC 24 V

SW S8

CPU

(inside inverter)

DC 24 V

DC24V

SW S8

CPU

( i ns ide i nv e rt er)

Sink (PNP)

Source

(NPN)

5-6 VS1MD AC Drive User Manual

5.6 I/O Wiring Recommendations

5.6.1 Maximum Control Wire Length Recommendations

Do not exceed control wiring length of 30 meters (100 feet). Control signal cable

length is highly dependent on electrical environment and installation practices. To

improve noise immunity, the I/O terminal block Common must be connected to ground

terminal/protective earth.

5.7 Technical Specifications

Please see Appendix A - Technical Specifications for detailed electrical information.

Table 5.1 – Recommended Control and Signal Wire1

1If the wires are short and contained within a cabinet that has no sensitive circuits,

the use of shielded wire may not be necessary, but is always recommended.

Wire Type(s) Description

Minimum

Insulation

Rating

Belden 8760/9460

(or equiv.) 0.8 mm2 (18AWG), twisted pair, 100% shield with drain. 300 V

75° C

(167° F)

Belden 8770

(or equiv.) 0.8 mm2(18AWG), 3 conductor, shielded for remote pot

only.

Table 5.2 – I/O Terminal Block Specifications

Maximum Wire Size1

1Maximum / minimum that the terminal block will accept. These are not

recommendations.

Minimum Wire Size1Torque

1.3 mm2 (16 AWG) 0.13 mm2 (26 AWG) 0.5 to 0.8 Nm

(4.4 in-lb to 7 in-lb)

Using the Keypad 6-1

CHAPTER 6

Using the Keypad

Factory-default parameter values allow the drive to be controlled from the integral

keypad. No programming is required to start, stop, change direction, or control speed

directly from the integral keypad.

This chapter provides an overview of the integrated keypad and how to use it to

program the VS1MD drive.

6.1 Keypad Components

6.1.1 Display Description

The alpha-numeric display indicates the following:

•Operational Values (such as Output Frequency)

•Parameter Numbers

•Parameter Values

•Fault Codes

Refer to table 6.1 for the LED descriptions noted by ➊ through ➍ and table 6.2 for key definitions.

6-2 VS1MD AC Drive User Manual

6.2 LED Descriptions

Refer to figure 6.1 for the location of the LEDs described in table 6.1.

6.3 Key Descriptions

Refer to figure 6.1 for the location of the keys described in table 6.2.

Table 6.1 – LED Descriptions

No. LED LED State Description

➊PROG Steady Red (On) Indicates the drive is in programming mode.

(Off) Indicates the drive is in operational Mode.

➋RUN Steady Red (On) Indicates the drive is running at commanded speed.

Flashing Red Indicates drive is accelerating or decelerating to new

speed setting.

(Off) Drive is not running.

➌FWD Steady Red (On) Indicates the drive is in forward operation.

(Off) Indicates the drive is in reverse operation.

➍STP/FLT Steady Red (On) Indicates the drive is in a stopped position.

Flashing Red Indicates the drive is faulted.

(Off) Drive is running.

Table 6.2 – Key Descriptions

Key Name Description

Run Key •Starts the drive.

•Active when the input mode is programmed for

keypad control.

Stop Key •Stops the drive in programmed stop mode.

•Always active.

•Reset active faults.

Ent/Prog Key •Accesses programming menu and locks in

changed values.

•To enter programming mode, the Ent/Prog key

must be held in for 2 seconds.

•Holding the Ent/Prog key for 2 seconds or more will

escape back to Control Reference Mode or back

out of a parameter edit function.

Using the Keypad 6-3

6.4 About Parameters

To program the drive for a specific application, you adjust the appropriate parameters. The

parameters are used to define characteristics of the drive.

There are three types of parameters:

•Numbered List Parameters (Enumerated Parameters)

Numbered list parameters allow a selection from two or more options. Each item is

represented by a number.

Example: Start/Stop Source (P38)

•Bit Parameters

Bit parameters have individual bits associated with features or conditions. If the bit is 0, the

feature is off or the condition is false. If the bit is 1, the feature is on or the condition is true.

Example: Terminal Status Display (d7)

•Numeric Parameters

These parameters have a single numerical value (for example, 0.1 volts).

Example: Motor Rated Current (P32)

Parameters are also either configurable or tunable, or read-only.

Configurable parameters can be adjusted or changed only while the drive is stopped.

Speed

Reference

Keys

Operation Mode:

•Changes the commanded speed reference.

•Only active when the input mode is programmed for

keypad control.

•The Up-Arrow increases the speed reference at a

controlled rate.

•The Down-Arrow decreases the speed reference at

a controlled rate.

•Holding either arrow for a set period of time will

increase the reference ramp rate.

Program Mode:

•Increment / Decrement parameter numbers or

parameter values

Direction

Keys Operation Mode:

•Only active when the input mode is programmed for

keypad control.

•Direction keys are active only when operating in

reference command mode.

•Reverse may also be disabled by a parameter.

Program Mode:

•Cycle through the parameter groups or shift to

the next digit to be changed while in the

parameter edit mode.

Table 6.2 – Key Descriptions (Continued)

Key Name Description

6-4 VS1MD AC Drive User Manual

Tunable parameters can be adjusted or changed while the drive is running or stopped.

Read-only parameters cannot be adjusted.

6.5 How Parameters are Organized

Parameters are organized into five Parameter Groups:

•The Display Parameter Group (dnn) contains parameters for the display of basic

drive information.

•The Programming Parameter Group (Pnn) contains the most commonly used

parameters for startup and operation.

•The Terminal Parameter Group (tnn) contains a linear list of input and output control

parameters.

•Function Group 1 Parameters (Fnn) contains a linear list of advanced motor control

parameters.

•Function Group 2 Parameters (Hnn) contains a linear list of advanced motor profile

parameters.

6.6 Moving Between Parameter Groups

Use the following procedure to enter the programming mode and to move between

groups:

Table 6.3 – Moving Between Parameter Groups

Procedure Sample Display

Step 1. When the drive first powers up, the display will

indicate the value of the “Power ON Display,” which

is defined in Parameter H72. The default “Power On

Display” is the commanded frequency.

Step 2. Press and hold down the ENTER key for at least two

seconds to change the drive from the operation

mode to the programming mode.The “PROG” LED

will illuminate indicating that the drive is in

programming mode. The drive will display the first

parameter of the “Display” group.

Step 3. Press the right arrow key to change to the

“Parameters Group”.

Step 4. Press the right arrow key to change to the “Terminal

Group”.

Using the Keypad 6-5

You can only move between groups while the first parameter of the group is displayed.

Pressing the left or right arrow while displaying any parameter other than the first

parameter of the group returns to the first parameter of the group.

Step 5. Press the right arrow key to change to “Function

Group 1”.

Step 6. Press the right arrow key to change to “Function

Group 2”.

Step 7. Press the right arrow key to change to “Display”

group.

Step 8. Press and hold down the ENTER key for at least two

seconds to change the drive from the programming

mode back to operation mode.The “PROG” LED will

go out indicating that the drive is in operation mode.

The drive will display the default “Power On Display”.

Note that the above can be execute in reverse order by using the left arrow key

instead of the right arrow key.

Table 6.3 – Moving Between Parameter Groups

Procedure Sample Display

Function Group 1 Function Group 2

Terminal group

Pressing the

left or right

arrow from

any parameter

returns you to

the first

parameter of

the group

Pressing the

up or down

arrow moves

you within a

group of

parameters

6-6 VS1MD AC Drive User Manual

The below example indicates the steps needed to move from parameter F35 to

Function Group 2.

6.7 Changing Between Parameters Within a Group

Each group contains parameters arranged in a linear list. The list can be navigated

using the Up and Down arrows.

Table 6.4 – Moving from F35 to Function Group 2

Procedure Sample Display

Step 1. When a parameter other than the first in a group is

displayed, you must initially go to the first parameter

of the group prior to going to the next group. For this

example, parameter F35 of Function Group 1 is

currently displayed and you want to go to Function

Group 2 (H Parameters).

Step 2. Press the left or right arrow and parameter F0 will be

displayed.

Step 3. Press the right arrow key to change to “Function

Group 2”.

Table 6.5 – Changing Between Parameters Withing a Group

Procedure Sample Display

Step 1. From the operation mode, press and hold down the

ENTER key for at least two seconds to change the

drive to the programming mode. The “PROG” LED

will illuminate indicating that the drive is in

programming mode. The drive will display the first

parameter of the “Display” group.

Step 2. Press the up arrow to display the next parameter.

Step 3. Press the up arrow again to display the next

parameter, continue until the desired parameter is

displayed.

Note that using the down arrow allows navigation through the parameters in

reverse order.

Using the Keypad 6-7

The first parameter of each group, with the exception of the “Display Group”, is a

special parameter called a “Jump Code”. The parameter can be used to jump to a

specific parameter within a group without having to scroll through the parameters

using the up and down arrows. Once the Jump Code is programmed, the drive will

save the setting for future use, but this can always be reprogrammed to jump to a

different parameter.

The following example illustrates the use of a Jump Code to jump to parameter P38.

Table 6.6 – Using the Jump Code

Procedure Sample Display

Step 1. From the operation mode, press and hold down the

ENTER key for at least two seconds to change the

drive to the programming mode. The “PROG” LED

will illuminate indicating that the drive is in

programming mode. The drive will display the first

parameter of the “Display” group.

Step 2. Press the right arrow to change to the “Parameters”

group.

Step 3. Press the ENTER key to edit P0 (Jump Code).

Step 4. Press the UP arrow seven times until the display

indicates an “8”.

Step 5. Press the left arrow one time such that the next digit

is displayed. It will be displayed brighter than the

previous digit.

Step 6. Press the UP arrow three times such that the display

indicates the parameter number.

Step 7. Press the ENTER key to accept the value. The value

will be saved in the Jump Code (P0) for future use

and the desired parameter will immediately be

displayed.

6-8 VS1MD AC Drive User Manual

The following example shows how to use a previously stored Jump Code.

6.8 Modifying the Value of a Parameter

The parameters located in the Display group are read-only and can not be modified.

All other parameters (with a few exceptions) can be modified by the user. Some

parameters are configurable - meaning that the drive must be stopped before the

parameter can be modified, while others are tunable - meaning that the parameter can

be modified while the drive is stopped or running.

Table 6.7 – Using a Previously Stored Jump Code

Procedure Sample Display

Step 1. From the operation mode, press and hold down the

ENTER key for at least two seconds to change the

drive to the programming mode. The “PROG” LED

will illuminate indicating that the drive is in

programming mode. The drive will display the first

parameter of the “Display” group.

Step 2. Press the right arrow to change to the “Parameters”

group.

Step 3. Press the ENTER key to access the Jump Code.

Step 4. Press the ENTER key a second time and the desired

parameter will be displayed.

Using the Keypad 6-9

The following example shows how to modify the acceleration time located in

parameter P41.

Table 6.8 – Modifying Parameter Values

Step 1. From the operation mode, press and hold down the

ENTER key for at least two seconds to change the

drive to the programming mode. The “PROG” LED

will illuminate indicating that the drive is in

programming mode. The drive will display the first

parameter of the “Display” group.

Step 2. Press the right arrow key to change to the

“Parameters” group.

Step 3. Use the up arrow or the jump code to display the

acceleration time parameter P41.

Step 4. Momentarily press the ENTER key to begin the

parameter value edit mode. Notice that the tenths

digit is highlighted for editing. At this point you can

use the up arrow key to increment the value all the

way to the new setting (16.0 in this example) or

proceed with the following steps.

Step 5. Press the left arrow key to select the ones digit for

editing.

Step 6. Press the up arrow key to increment the ones digit

from a 5 to a 6.

Step 7. Press the left arrow key to select the tens digit for

editing.

Step 8. Press the up arrow key to increment the tens digit

from a 0 to a 1.

Program Group

6-10 VS1MD AC Drive User Manual

6.9 Monitoring Display Parameters

The Display group is a group that consists of read only values that can be monitored

by the user to diagnose the operation of the drive and motor. To monitor the motor

current, follow the below example.

Step 9. Press the ENTER key to accept the value and the

display will begin to flash so that you can confirm the

entry.

Step 10. Press the ENTER key a second time to acknowledge

the entry. The display will revert to showing the

parameter number.

Table 6.8 – Modifying Parameter Values

Table 6.9 – Monitoring Display Parameters

Step 1. From the operation mode, press and hold down the

ENTER key for at least 2 seconds to change the

drive to the programming mode. The “PROG” LED

will illuminate indicating that you are in the

programming mode. The drive will display the first

parameter of the “Display” group.

Step 2. Press the up arrow key twice to change to the

parameter d2 (Motor Current).

Step 3. Momentarily press the ENTER key to display the

motor current. The display will be updated in real

time.

Step 4. Press the ENTER key to return to the previous

display so that you can select a new parameter to

view.

Display Group

Using the Keypad 6-11

6.10 Reviewing the Fault Status in the Display Group

When a fault is active, this is annunciated on the drive by flashing the STOP/FAULT

LED. This procedure is used to review the active fault as well as certain conditions at

the time the fault occurred.

Table 6.10 – Reviewing Fault Status in the Display Group

Step 1. When an overcurrent condition has been detected by

the drive, a fault will be latched and the display will

show the condition.

Step 2. Press the ENTER key to see the frequency at which

the fault occurred. This example indicates that the

drive was outputting 30.00 Hz when the fault

occurred.

Step 3. Press the up arrow to view the output current during

the fault. This example indicates that the drive was

outputting 5.0 Amps when the fault occurred.

Step 4. Press the up arrow key again to view the operating

status of the drive when the fault occurred. This

example indicates that the drive was accelerating

when the fault occurred.

Step 5. Press the STOP/RESET button on the keypad to

reset the fault and the STOP/FAULT LED will

illuminate solid indicating that the fault is cleared and

that the drive is in the stopped condition. The display

will indicate that there is no longer a fault condition.

Frequency

Current

During

Accel

Display Group STOP

RESET

Over-

current

trip

6-12 VS1MD AC Drive User Manual

6.11 Resetting the Parameters to Factory Default

Follow the below procedure to reset the parameters to the factory default values:

Table 6.11 – Resetting Parameters to Factory Default

Step 1. Navigate to the Function Group 2 (H Group).

Step 2. Press the ENTER key to edit the jump code. Modify

the jump code to be equal to 93.

Step 3. Press the ENTER key to jump to parameter H93.

Step 4. Press ENTER to display the current value of

parameter H93 (it will be 0 indicating that parameters

will not be reset).

Step 5. Press the up arrow key to change the value to a 1.

Step 6. Press the ENTER key to reset the drive parameters

to factory default. The display will revert back to

displaying the parameter number.

Function Group 2

Parameter Descriptions 7-1

CHAPTER 7

Parameter Descriptions

7.1 Overview

The following information is provided for each parameter listed in table 7.1 along with

its description:

The parameters are presented in numerical order within each of the fivegroups

(Dispay, Basic Parameters, Terminal, Function Group 1, Function Group 2). Appendix

B contains a list of parameters by name cross-referenced to parameter number.

Parameter Number: Unique number assigned to each parameter.

Parameter Name: Unique name assigned to each parameter.

LED Display: Display shown on LED screen when parameter is

accessed.

Range: Predefined parameter limits or selections. Note that

a negative Hz value indicates reverse rotation.

Default: Factory default setting.

Access: •Read Only: Parameter value can not be modified

by user.

•Configurable: Parameter can only be modified

while drive is stopped.

•Tunable: Parameter can be modified while drive

is running or stopped.

Group: Menu group within which parameter is located.

See also: Associated parameters that may provide additional

or related information.

7-2 VS1MD AC Drive User Manual

7.2 Display Group Parameters

Parameters in this group are display only and can be used to monitor drive

conditions. To change the active display for the drive, use parameter H72 - Power

On Display.

d0 Frequency Command

Range: 0.0 to Frequency High Limit (P36) [Hz]

Default: Read Only

Displays the value of the active frequency command. The commanded

frequency is displayed even if the drive is not running.

d1 Motor RPM

Range: 0.0 Motor RPM (based on P33 Motor

Poles) [RPM]

Default: Read Only

Displays the output motor RPM. Motor RPM is scaled based on output

frequency present on terminals U, V and W based on the setting in P33

– Motor Poles.

d2 Output Current

Range: 0.0 to Motor Rated Current (P32) [Amps]

Default: Read Only

Displays the value of the output current present at terminals U, V and W.

d3 Output Voltage

Range: 0.0 to Drive Rated Voltage [volts]

Default: Read Only

Displays output voltage present at U, V, W.

d4 Output Power

Range: 0.0 to (Drive Rated Power x 2) [kW]

Default: Read Only

Displays the value of the output power present at terminals U, V and W.

Parameter Descriptions 7-3

d5 Output Torque

Range: 0.0 to (Drive Rated Torque x 2) [kgf / M]

Default: Read Only

See Also: H40, H50-H56

Selects the source for the PID loop feedback.

H51 P Gain for PID

Range: 0 - 999.9%

Default: 300.0

Access Configurable

See Also: H40, H50-H56

These parameter sets the Proportional gain for the PID Controller.

H52 I Gain for PID

Range: 0.1-32.0[sec]

Default: 1.0

Access Tunable

See Also: H40, H50-H56

These parameter sets the Integral gain for the PID Controller.

Parameter Descriptions 7-51

H53 D Gain for PID

Range: 0-30.0[sec]

Default: 0.0

Access Tunable

See Also: H40, H50-H56

These parameter sets the Differential gain for the PID Controller.

H54 F Gain for PID

Range: 0-999.9[%]

Default: 0.0

Access Tunable

See Also: H40, H50-H56

This is the Feed forward gain for the PID controller.

H55 PID output frequency high limit

H56 PID output frequency low limit

Range: 0.1-400[Hz]

Default: 60.00

Access Tunable

See Also: H40, H50-H56

These parameters set the limits for the output frequency through the PID

control.

H60 Self Diagnostics Select

Range: 0 - 3

Default: 0

Access Configurable

See Also: H94

This parameter is able to lock or unlock parameters by typing the password

registered in H94.

2 = P Group Parameter Reset 3 = F Group Parameter Reset

4 = H Group Parameter Reset 5 = t Group Parameter Reset

7-58 VS1MD AC Drive User Manual

Customizing for Your Application 8-1

CHAPTER 8

Customizing for Your Application

8.1 Frequency Mode

8.1.1 Keypad Frequency Setting 1

Note: When remote keypad is connected, keypad keys on the body are deactivated.

Group Code Parameter Name Setting Range Initial Unit

Drive

group P37 [Frequency Command] - 0 to

400 0.00 Hz

P40 [Frequency Setting

Method] 1 1 to 7 1

Step 1. Set P40 [Frequency mode] to “1”.

Step 2. Set the desired frequency in P37 and press the Prog/Ent ( ) key to enter

the value into memory.

Step 3. The value can not be set above P36 [Frequency Hiigh Limit].

8-2 VS1-MD AC Drive User Manual

8.1.2 Frequency Setting via –10 to +10[V] Input

Apply –10V to +10V signal between V1 and CM terminal.

Output frequency corresponding to –10V to +10V input voltage to V1 terminal

Group Code Parameter Name Setting Range Initial Unit

Drive

group P37 [Frequency Command] - 0 to400 0.00 Hz

P40 [Frequency Mode] 2 1 to 7 1

t40 TO

t44 t36 [NV Input Minimum Voltage] - 0 to -10 0.0 V

t37 [Frequency Corresponding to

t36] - 0 to 400 0.00 Hz

t38 [NV Input Max Voltage] - 0 to 10 10.00 V

t39 [Frequency Corresponding to

t38] - 0 to 400 60.00 Hz

t40 to

t44 [V1 Input]

Step 1. Set P40 [Frequency Setting Method] to “2”.

Step 2. The set frequency can be monitored in D-0[Frequency Command].

Customizing for Your Application 8-3

I1 (Filter time constant for NV input): Effective for eliminating noise in the frequency

setting circuit. Increase the filter time constant if steady operation cannot be

performed due to noise. A higher setting results in slower response (t gets longer).

t36 to t39: Setting input range and corresponding frequency to -10V to 0V V1 input

voltage

Ex) when minimum (-) input voltage is -2V with corresponding frequency 10Hz and

Max voltage is –8V with run freq. 50Hz.

t40 to t44: Setting input range and corresponding frequency to 0 to +10V V1 input

voltage

Ex) when minimum (+) input voltage is 2V with corresponding frequency 10Hz and

Max voltage is 8V with run freq.

V1 Input

Set Freq.

t38 t36

t44

t42

t41 t49

8-4 VS1-MD AC Drive User Manual

8.1.3 Frequency Setting via 0 to 10 [V] Input or Terminal Potentiometer

Wire the terminals as shown below.

Group Code Parameter Name Setting Range Initial Unit

Drive

group

P37 [Frequency Command] - 0 to 400 0.00 Hz

P40 [Frequency Setting Method] 3 1 to 7 1

I/O

group

t40 [Filter Time Constant for V1

Input] 10 0 to 9999 10

t41 [V1 Input Min Voltage] - 0 to 10 0 V

t42 [Frequency corresponding to I

7] - 0 to 400 0.00 Hz

t43 [V1 Input Max Voltage] - 0 to 10 10 V

t44 [Frequency Corresponding to

I 9] - 0 to 400 60.00 Hz

Step 1. Set P40 [Frequency Setting Method] to “3”

Step 2. 0-10V can be directly applied from an external controller or a

potentiometer connected on terminals VR, V1 and CM.

Customizing for Your Application 8-5

8.1.4 Frequency Setting via 0 to 20 [mA] Input

8.1.5 Frequency Setting via -10 to +10 V Voltage Input + 0 to 20 mA

Input

Override function allows more precise control and a faster response by combining

Main and Auxiliary speed input. Fast response can be achieved via Main speed and

precise control can be accomplished by Aux. speed if the accuracy of Main/Aux speed

is set differently.

Follow the settings shown in the table below when Main speed is given via 0 to 20mA

with Aux. speed via V1 terminal (–10 to 10V).

Group Code Parameter Name Setting Range Initial Unit

Drive

group

P37 [Frequency Command] - 0 to 400 0.00 Hz

P40 [Frequency Setting Method] 4 1 to 7 1

I/O

group

t45 [Filter Time Constant for I Input] 10 0 to 9999 10

t46 [I Input Minimum Current] - 0 to 20 4 mA

t47 [Frequency Corresponding to I12] - 0 to 400 0.00 Hz

t48 [I input Max Current] - 0 to 20 20 mA

t49 [Frequency Corresponding to I14] - 0 to 400 60.00 Hz

Step 1. Set P40 [Frequency Setting Method] to “4”.

Step 2. Frequency is set via 0 to 20mA input between I and CM terminal.

Group Code Parameter Name Setting Range Initial Unit

Drive

group

P37 [Frequency Command] - 0 to 400 0.00 Hz

P40 [Frequency Setting Method] 5 1 to 7 1

Step 1. Set P40 [Frequency Setting Method] to “5”.

Step 2. Override function available using Main/Auxiliary speed adjustment

Step 3. Related code: t36, t39, t40, t44, t45, t49

8-6 VS1-MD AC Drive User Manual

When override function is used, select the Main/Aux. speed according to loads used.

After the above parameters are set, if 5V is applied to V1 with 12mA given to terminal

I, output frequency would be 32.5Hz. If –5V is applied to V1 terminal with 12mA given

to terminal I, output frequency would be 27.5Hz.

8.1.6 Frequency Setting via 0 to 10 V + 0 to 20 mA Input

Group Code Parameter Name Setting Unit

I/O group

t36 [NV Input Min Voltage] 0 V

t37 [Frequency Corresponding to t36] 0.00 Hz

t38 [NV Input Max Voltage] 10.00 V

t39 [Frequency Corresponding to t38] 5.00 Hz

t41 [V1 Input Min Voltage] 0 V

t42 [Frequency Corresponding to t41] 0.00 Hz

t43 [V1 Input Max Voltage] 10 V

t44 [Frequency Corresponding to t43] 5.00 Hz

t46 [I Input Minimum Current] 4 mA

t47 [Frequency Corresponding to t46] 0.00 Hz

t48 [I Input Max Current] 20 mA

t49 [Frequency Corresponding to t48] 60.00 Hz

Group Code Parameter Name Setting Range Initial Unit

Drive

group

P37 [Frequency Command] - 0 to 400 0.00 Hz

P40 [Frequency Mode] 6 1 to 7 1

Step 1. Set P40 [Frequency Setting Method] to “6”.

Step 2. Related code: t40 to t44, t45 to t49

Step 3. Refer to Frequency setting via -10 to +10V voltage input + 0 to 20mA

input.

Customizing for Your Application 8-7

8.1.7 Frequency Setting via RS 485 Communication

8.1.8 Operating Command via RS485 Communication

8.1.9 Rotating Direction Selection via –10 to +10[V] Input of V1 Terminal

Motor runs in Forward direction when input voltage to V1-CM is between 0 and 10[V]

and FWD RUN command is active. When input voltage polarity is reversed to –10 to

0[V] during FWD RUN, motor decelerates to stop and runs in reverse direction.

Group Code Parameter Name Setting Range Initial Unit

Drive

group

P37 [Frequency Command] - 0 to400 0.00 Hz

P40 [Frequency Setting Method] 7 1 to 1

Set P40 [Frequency Setting Method] to “7”.

Related code: t59 - t61

Refer to Appendix D. RS485 communication.

Group Code Parameter Name Setting Range Initial Unit

Drive group P38 [Drive Mode] 3 0 to 3 1

I/O group

t59 [Communication Protocol

Selection] -0 to 10

t60 [Inverter Number] - 1 to 250 1

t61 [Baud Rate] - 0 to 4 3

Step 1. Set P38 [Drive Mode] to “3”.

Step 2. Set t59, t60 and t61 correctly.

Step 3. Drive operation is performed via RS485 communication.

Group Code Parameter Name Setting Range Initial Unit

Drive group P40 [Frequency Setting] 2 1 to 7 1

P38 [Drive Mode] - 0 to 3 1

Step 1. Set P40 to 2.

Step 2. Inverter is operating as the table below regardless of Drive mode setting.

FWD RUN Command REV RUN Command

0 to +10 [V] FWD RUN REV RUN

-10 to 0 [V] REV RUN FWD RUN

8-8 VS1-MD AC Drive User Manual

Motor runs in Reverse direction when input voltage to V1-CM is between 0 and 10[V]

and REV RUN command is active. When input voltage polarity is reversed to –10 to

0[V], motor decelerates to stop and runs in forward direction.

8.2 UP-Down

Up/down Save function: If F63, ‘Save up/down frequency’, is set to 1, the frequency

before the inverter was stopped or decelerated is saved in F64

The Up/down frequency can be initialized by setting the multi-function input terminal

as ‘Up/Down Save Frequency Initialization’.

Group Display Parameter Name Setting Range Default Unit

I/O

group

t1 [Multi-function Input Terminal P1 Selection] 0

0 to 25

to to

t7 [Multi-function Input Terminal P7 Selection] 15 6

t8 [Multi-function Input Terminal P8 Selection] 16 7

Select terminals for Up-Down operation from P1-P8.

If P7 and P8 are selected, set t7 and t8 to 15 [Frequency Up command] and 16 [Frequency Down

command], respectively.

If P6 is selected, set t6 to t8 [Up/Down Save Frequency Initialization].

F63 Save up/down frequency select 0 Remove ‘save up/down frequency’

1 Set ‘save up/down frequency’

F64 Save up/down frequency Up/down frequency saved

P7 (UP)

P8 (DOWN)

Frequency

Run

command(FX)

Customizing for Your Application 8-9

‘Up/Down Save Frequency Initialization’ signal is input while the multi-function input

‘Up’ or ‘Down’ function is applied, this signal is ignored.

8.3 3-Wire

Input signal is saved in 3-Wire operation. Therefore, inverter can be operated by

Push-button switch.

The bandwidth of pulse (t) should not be less than 50msec.

Group Display Parameter Name Setting Range Default Unit

I/O

group

t1 [Multi-function Input Terminal P1 Selection] 0

0 to 24

to to

t8 [Multi-function Input Terminal P8 Selection] 17 7

Select the terminal from P1-P8 for use as 3-Wire operation.

If P8 is selected, set I24 to “17” [3-Wire operation].

Frequency

P8 (3-Wire)

8-10 VS1-MD AC Drive User Manual

8.4 PID Control

H50: Select the feedback type of PID controller.

H51: Set the percentage of output to error. If P Gain is set to 50%, 50% of the error

value will be output. Higher value can reach the target control value faster but it may

cause oscillation.

H52: Set the time to output the accumulated error value. Set the time required to

output 100% when the error value is 100%. If H52 [Integral time for PID controller (I

gain)] is set to 1 sec and the error becomes 100%, 100% will be output in 1 sec.

Adjusting the value may reduce the nominal error. If the value is reduced, response

will be faster but setting too low may lead to controller oscillation.

H53: Set the output value to the variation of the error. The error is detected by 0.01

sec in SV-iG5A. If differential time is set to 0.01 sec and the percentage variation of

error per 1 sec is 100%, 1% per 10msec is output.

H54: PID Feed Forward Gain. Set the gain to add the target value to the PID controller

output.

H55, H56: Limits the output of the PID controller.

I17 to I24: To go from PID to normal operation, set one of P1-P8 terminal to 21 and

turn ON.

d1: Calculates the feedback from H50 into Motor frequency and displays it.

Group Display Parameter Name Setting Range Default Unit

Function

group 2

H40 [Control Mode Selection] 2 0 to 3 0 -

H50 [PID Feedback Selection] - 0 to 1 0 -

H51 [P Gain for PID Controller] - 0 to 999.9 300.0 %

H52 [I Gain for PID Controller] - 0.1 to 32.0 1.0 sec

H53 [D Gain for PID Controller] - 0.0 to 30.0 0 sec

H54 [F Gain for PID Controller] 0 to 999.9 0 %

H55 [PID Output Frequency High Limit] - 0.1 to 400 60.0 Hz

H56 [PID Output Frequency Low Limit] - 0.1 to 400 0.50 Hz

I/O group t1 to t8 [Multi-function Input Terminal

P1-P8 Definition] 21 0 to 25 - -

Drive group d1 [Motor RPM]

Set H40 to “2” [PID Feedback control].

Output frequency of the inverter is controlled by PID control for use as constant control of flow, pressure or

temperature.

H50 [PID Feedback Selection] 0 Terminal I input (0 to 20[mA] )

1 Terminal V1 input (0 to 10[V])

Customizing for Your Application 8-11

r    G       Y

}X  X a T X W ¥ RX W }

}XYGaGWG¥GXW}

pGaGWG¥GYWh

Drive group

P40

Func. group 2

H51 : P gain

yG

wpkG

I/O group

t40 t45

hGG

I/O group

t36~ t49

hGG

[

r    G       XW

Func.

group 2

H40

jGG

P1 ~ P8

Ac c e l/

Decel

[

I/ O g rou p

t40, t45

hGG hGG

V1_2

: 0 ~ 10V

Func.

group 2

H50

m G



I/O group

t41~ t49

H52 : I time

H53 : D time

Func. group 2

H54

mGmGn

I/O group

t1 ~ t8

wpTjG

i

Func.

group 2

H55

wpkGGUG

WSGXSGZ

0~+10[V]

Keypad/

Remote

keypad

-10 ~ +10

[V]

0~20[mA]

PID Block Diagram

8-12 VS1-MD AC Drive User Manual

8.5 Auto-tuning

H41: When H41 is set to 1 and press the Enter (ò) key, Auto tuning is activated and

“TUn” will appear on the LED keypad. When finished, “H41” will be displayed.

H42, H44: The values of motor stator resistance and leakage inductance detected in

H41 are displayed, respectively. When Auto tuning is skipped or H93 – [Parameter

initialize] is done, the default value corresponding to motor type (H30) will be

displayed.

Press the STOP/RST key on the keypad or turn on the EST terminal to stop the Auto

Tuning.

If Auto tuning of H42 and H44 is interrupted, the default value will be set. If H42 and

H44 are finished and auto-tuning of leakage inductance is interrupted, the measured

value of H42 and H44 are used and the default of leakage inductance is set.

See page for motor parameter default values.

Group Display Parameter Name Setting Range Default Unit

H-

Function

group 2

H41 [Auto Tuning] 1 0 to 1 0 -

H42 [Stator Resistance (Rs)] - 0 to 28 - W

H44 [Leakage Inductance (Lσ)] - 0 to 300.00 - mH

Motor parameters will be automatically measured.

The measured motor parameters in H41 can be used in Auto Torque Boost and Sensorless Vector

Control.

ATTENTION:Auto tuning should only be executed after

motor has stopped. Motor shaft must not run by the load

during H41[Auto tuning].

ATTENTION:Be sure accurate values are entered for stator

resistance and leakage inductance. Otherwise, the performance

of Sensorless vector control and Auto torque boost could be

compromised.

Customizing for Your Application 8-13

8.6 Sensorless Vector Control

Ensure that the following parameters are entered correctly for optimal performance in

Sensorless vector control.

P30: Select motor type connected to inverter output.

H32: Enter rated slip frequency based on motor nameplate RPM and rated frequency

(See 10-6).

P32: Enter motor nameplate rated current.

H34: After removing the load, set H40[Control mode Selection] to “0” [V/F control] and

run the motor at 60Hz. Enter the current displayed in Cur-[Output current] as motor no

load current. If it is difficult to remove the load from the motor shaft, enter a value

equal to 40 to 50% of H33[Motor rated current] or the factory default.

H42, H44: Enter the value of the parameter measured during H41[Auto tuning] or the

factory default.

F14: This parameter accelerates the motor after pre-exciting the motor for the set

time. The amount of the pre-exciting current is set in H34[Motor No Load Current].

Directly enter the motor nameplate value except motor rating when 0.2kW is used.

Group Display Parameter Name Setting Range Default Unit

H - Function

group 2

H40 [Control Mode Selection] 3 0 to 3 0 -

P30 [Motor Type Selection] - 0.2 to 7.5 - kW

H32 [Rated Slip Frequency] - 0 to 10 - Hz

P32 [Motor Rated Current] - 0.5 to 50 - A

H34 [Motor No Load Current] - 0.1 to 20 - A

H42 [Stator Resistance (Rs)] - 0 to 14 - W

H44 [Leakage Inductance (Lσ)] - 0 to 300.00 - mH

Function

group 1 F14 [Time for Energizing a Motor] - 0.0 to 60.0 0.1 sec

If H40[Control mode Selection] is set to “3”, Sensorless vector control will become active.

ATTENTION:Motor parameters should be measured for

optimal performance. It is highly recommended H41 [Auto

tuning] be done prior to operating via Sensorless vector

control.

8-14 VS1-MD AC Drive User Manual

Factory default by motor ratings

Input

voltage

Motor

rating

[kW]

Current

rating

[A]

No-load

current

[A]

Rated slip

freq

[Hz]

Stator

resistance

[Ω]

Leakage

inductance

[mH]

200

0.2 1.1 0.6 2.33 14.0 122.00

0.4 1.8 1.2 3.00 6.70 61.00

0.75 3.5 2.1 2.33 2.46 28.14

1.5 6.5 3.5 2.33 1.13 14.75

2.2 8.8 4.4 2.00 0.869 11.31

3.7 12.9 4.9 2.33 0.500 5.41

5.5 19.7 6.6 2.33 0.314 3.60

7.5 26.3 9.0 2.33 0.169 2.89

400

0.2 0.7 0.4 2.33 28.00 300.00

0.4 1.1 0.7 3.0 14.0 177.86

0.75 2.0 1.3 2.33 7.38 88.44

1.5 3.7 2.1 2.33 3.39 44.31

2.2 5.1 2.6 2.00 2.607 34.21

3.7 6.5 3.3 2.33 1.500 16.23

5.5 9.9 3.9 2.33 0.940 10.74

7.5 15.2 5.7 2.33 0.520 8.80

Customizing for Your Application 8-15

8.7 Speed Search

The following table shows 4 types of Speed search selections.

H23: Limits current during Speed search. Set as a percentage of H33.

H24, H25: Speed search is activated via PI control. Adjust P gain and I gain

corresponding to the load characteristics.

t32, t33: Signal of active Speed search is given to external sequence via Multi-function

output terminal (MO) and Multi-function relay output (3ABC).

Group Display Parameter Name Setting Range Default Unit

Function

group 2

H22 [Speed Search Selection] - 0 to 15 0

H23 [Current Level] - 80 to 200 100 %

H24 [Speed Search P Gain] -

0 to 9999

100

H25 [Speed Search I Gain] - 200

I/O group

t32 [Multi-function Output

Terminal Selection] 15

0 to 18

t33 [Multi-function Relay Selection] 15 17

This is used to prevent possible faults from occurring if the inverter outputs the voltage during operation

after the load is removed.

The inverter estimates the motor rpm based on output current. Therefore, detecting exact speed is

difficult.

H22

Speed Search

During

H20[Power ON

Start]

Speed Search

During Instant

Power Failure

Restart

Speed Search

During

H21[Restart After

Fault Reset]

Speed Search

During

Acceleration

Bit 3Bit 2Bit 1Bit 0

0- - - -

1- - -

2- - -

3- -

4- --

5- -

6- -

8---

9--

10 - -

11 -

12 --

13 -

14 -

8-16 VS1-MD AC Drive User Manual

Example

Speed search during Instant Power Failure restart

Speed search operation is suitable for loads with high inertia. Stop the motor and

restart when friction in load is high.

VS1MD keeps normal operation when instant power failure occurs and power is

restored in 15msec for the use of its inverter rating.

Inverter DC link voltage can vary depending on output load quantity. Therefore, Low

Voltage trip may occur when instant power failure is maintained over 15msec or output

is higher than its rating.

Instant power failure specification is applied when input voltage to Inverter is 200 to

230V AC for 200V class, or 380 to 480V AC for 400V class.

•When the input power is cut off due to instant power failure, the

inverter outputs Low voltage trip (LV) to hold the output.

•When the power is restored, the inverter outputs the frequency

before the low voltage trip and the voltage is increased due to PI

control.

•t1: If current is increasing over the preset level in H23, the rise in

voltage will stop and the frequency is decreased.

•t2: If the opposite of t1 occurs, the increase in voltage starts again

and the decrease in frequency stops.

•When the frequency and voltage are restored back to the nominal

level, acceleration will continue at the frequency before trip.

Customizing for Your Application 8-17

8.8 Self-Diagnostic Function

8.8.1 How to Use Self-Diagnostic Function

Perform Self-diagnostic function after input/output wiring of the inverter is finished.

This function allows the user to safely check for the IGBT fault, output phase open and

short, and Ground fault without disconnecting the inverter wiring.

There are 4 options:

Once H60 is set to a specific value from 1 to 3 and the terminal defined for this

function among P1 to P8 terminals is turned ON, the corresponding function is

conducted, displaying “dIAG”

To stop this function, press STOP/RESET key on the keypad, turn the defined terminal

OFF or turn the EST terminal ON.

Group Display Parameter Name Setting Range Default Unit

Function

group 2 H60 Self-Diagnostic Selection - 0 to 3 0 -

I/O group

t1 Multi-function Input Terminal P1

Selection -

0 to 25

to to

t8 Multi-function Input Terminal P8

Selection 20 7 -

Select Self-Diagnostic function in H60, Function group 2.

Define one terminal among P1toP8 terminals for this function.

To define P8 for this function, set t8 to “20”.

ATTENTION:Do not touch the inverter with hands or other

objects while performing this function because current is

flowing to the inverter output.

H601

1Selecting the higher number performs all functions within lower numbers.

Self-Diagnostic

function

0 Self-Diagnostic disabled

1IGBT fault and Ground fault2

2Ground fault of U phase in 2.2KW to 4.0KW inverters and ground fault of

V phase in other rating inverters may not be detected when selecting “1”.

Select 3 to make sure to detect all phase of U, V, W

2 Output phase short & open circuit and Ground fault

3 Ground fault (IGBT fault, Output phase short and open circuit)

8-18 VS1-MD AC Drive User Manual

The following table shows the fault type while this function is active.

8.9 Parameter Read/Write

8.9.1 Parameter Read

Step 1. Move to H91 code.

Step 2. Press Enter ( ) key once. 0 will be displayed.

Step 3. Press Up ( ) key once. Rd will be displayed.

Step 4. Press Enter ( ) key twice. Rd will be displayed

Step 5. H91 is displayed when Parameter read is finished.

No. Display Fault type Diagnosis

1 UPHF Switch above IGBT’s U phase fault

Contact sales representatives.

2 UPLF Switch below IGBT’s U phase fault

3 vPHF Switch above IGBT’s V phase fault

4 vPLF Switch below IGBT’s V phase fault

5 WPHF Switch above IGBT’s W phase fault

6 WPLF Switch below IGBT’s U phase fault

7 UWSF Output short between U and W Check for a short in inverter output

terminal, motor connection

terminal or the proper motor

connection.

8 vUSF Output short between U and V

9 WvSF Output short between V and W

10 UPGF Ground fault at U phase

Check for ground fault occurring at

inverter output cable or motor or

motor insulation damage.

11 vPGF Ground fault at V phase

12 WPGF Ground fault at W phase

13 UPOF Output open at U phase

Check for proper connection of the

motor to the inverter output or

proper motor connection.

14 vPOF Output open at V phase

15 WPOF Output open at W phase

Group Display Parameter Name Setting Range Default Unit

Function

group 2

H91 [Parameter Read] 1 0 to 1 0

H92 [Parameter Write] 1 0 to 1 0

Used to read/write Inverter Parameters using remote keypad.

ATTENTION:Take caution when Parameter write (H92) is

executed. By doing this, parameters in inverter are cleared

and parameters in remote keypad are copied to inverter.

Customizing for Your Application 8-19

8.9.2 Parameter Write

Step 1. Move to H92 code. H92 will be displayed.

Step 2. Press Enter ( ) key once. 0 will be displayed.

Step 3. Press Up ( ) key once. Wr will be displayed.

Step 4. Press Enter ( ) key twice. Wr will be displayed.

Step 5. H91 is displayed when Parameter read is finished.

8.10 Parameter Initialization / Lock

8.10.1 Parameter Initialization

Press Enter key after setting in H93. H93 will be displayed again after initialization

is complete.

8.10.2 Password Registration

Factory default password is 0. Enter any new password except 0.

8.10.2.1 Registering the password for the first time.

Step 1. Move to H94 code. H94 will be displayed.

Step 2. Press Enter ( ) key twice. 0 will be displayed.

Step 3. Register password. (Ex: 123) 123 will be displayed.

Group Display Parameter Name Range Default

Function

group 2 H93 [Parameter Initialization]

1 Initialize All Groups

2 Initialize Drive Group

3 Initialize F 1 Group

4 Initialize F 2 Group

5 Initialize I/O group

Select the group to be initialized and perform it in H93 code.

Group Display Parameter Name Setting Range Default Unit

Function

group 2

H94 [Password Registration] - 0 to FFFF 0

H95 [Parameter Lock] - 0 to FFFF 0

ATTENTION:Do not forget the registered password. It is needed

to unlock parameters.

8-20 VS1-MD AC Drive User Manual

Step 4. 123 will blink when Enter ( ) key is pressed. 123 will be displayed.

Step 5. Press Enter ( ) key. H94 will be displayed after the new password has been

registered.

8.10.2.2 Changing password. (Current PW: 123 -> New PW: 456)

Step 1. Move to H94 code. H94 will be displayed.

Step 2. Press Enter ( ) key. 0 will be displayed.

Step 3. Enter any number (e.g.: 122). 122 will be displayed.

Step 4. Press the Enter ( ) key. 0 is displayed because wrong value was entered.

Password cannot be changed in this status. 0 will be displayed.

Step 5. Enter the right password. 123 will be displayed.

Step 6. Press Enter ( ) key. 123 will be displayed.

Step 7. Enter the new password. (e.g. 456). 456 will be displayed.

Step 8. Press the Enter ( ) key. Then “456” will blink. 456 will be displayed.

Step 9. Press Enter ( ) key. H94 will be displayed.

8.10.3 Parameter Lock

8.10.3.1 Locking the user-set parameters.

Step 1. Move to H95 code. H9 will be displayed.

Step 2. Press Enter ( ) key. UL will be displayed.

Step 3. Parameter value can be changed in UL (Unlock) status. UL will be displayed.

Step 4. Press Enter ( ) key. 0 will be displayed.

Step 5. Enter the password created in H94 (e.g.: 123). 123 will be displayed.

Step 6. Press Enter ( ) key. L will be displayed.

Step 7. Parameter value cannot be changed in L (Lock) status. L will be displayed.

Step 8. Press Enter ( ) key. H95 will be displayed.

8.10.3.2 Unlocking the user-set parameter.

Step 1. Move to H95 code. H9 will be displayed.

Step 2. Press Enter ( ) key. L will be displayed.

Step 3. Parameter value cannot be changed in L(Lock) status. L will be displayed.

Step 4. Press Enter ( ) key. 0 will be displayed.

Step 5. Enter the password created in H94 (e.g.: 123). 123 will be displayed.

Group Display Parameter Name Setting Range Default Unit

Function

group 2

H95 [Parameter Lock] - 0 to FFFF 0

H94 [Password Registration] - 0 to FFFF 0

This parameter is used to lock the user-set parameters using the password.

Customizing for Your Application 8-21

Step 6. Press Enter ( ) key. UL will be displayed.

Step 7. Parameter value can be changed in UL (Unlock) status. While UL is

displayed, press Enter ( ) key. H95 will be displayed.

8.11 Multi-function Output Terminal (MO) and Relay (3AC)

t34: When 17 [Fault display] is selected in t32 and t33, Multi-function output terminal

and relay will be activated with the value in t34.

Group Code Parameter Setting range Initial

I/O

group t32 [Multi-function output

terminal Selection] 0FDT-1 12

1FDT-2

t33 [Multi-function relay

Selection] 2FDT-3 17

3FDT-4

4FDT-5

5Overload [OL ]

6Inverter Overload [IOL ]

7 Motor stall [STALL]

8 Over voltage trip [OV]

9 Low voltage trip [LV]

10 Inverter overheat [OH]

11 Command loss

12 During run

13 During stop

14 During constant run

15 During speed searching

16 Wait time for run signal input

17 Fault output

18 Cooling fan trip alarm

t34 [Fault relay output] When

setting

H26

[Number

of auto

restart

tries]

When trip

other

than low

voltage

trip

occurs

When

low

voltage

trip

occurs

Bit 2 Bit 1 Bit 0

0---

1--

2- -

4--

Select the desired item to be output via MO terminal and relay (30AC).

8-22 VS1-MD AC Drive User Manual

8.11.1 FDT-1

Check whether the output frequency matches the user-setting frequency.

Active condition: Absolute value (preset frequency - output frequency) <= Frequency

Detection Bandwidth/2

When setting t31 to 10.0

8.11.2 FDT-2

Activated when the preset frequency matches frequency detection level (t52) and

FDT-1 condition is met.

Active condition: (Preset frequency = FDT level) & FDT-1

Group Display Parameter Name Setting Range Default Unit

I/O group t31 [Detected Frequency Bandwidth] - 0 to 400 10.00 Hz

Cannot be set above Max frequency (P36).

Group Display Parameter Name Setting Range Default Unit

I/O

group

t30 [Detected Frequency level] - 0 to 400 30.00 Hz

t31 [Detected Frequency Bandwidth] - 10.00

Cannot be set above Max frequency (P36).

Customizing for Your Application 8-23

When setting t30 and t31 to 30.0 Hz and 10.0 Hz, respectively

8.11.3 FDT-3

Activated when run frequency meets the following condition.

Active condition: Absolute value (FDT level - run frequency) <= FDT Bandwidth/2

When setting t30 and t31 to 30.0Hz and 10.0 Hz, respectively

8.11.4 FDT-4

Activated when run frequency meets the following condition.

Active condition:

Accel time: Run Frequency >= FDT Level

Group Display Parameter Name Setting Range Default Unit

I/O

group

t30 [Detected Frequency level] - 0 to 400 30.00 Hz

t31 [Detected Frequency Bandwidth] - 10.00

Cannot be set above Max frequency (P36).

8-24 VS1-MD AC Drive User Manual

Decel time: Run Frequency > (FDT Level – FDT Bandwidth/2)

When setting t30 and t31 to 30.0Hz and 10.0 Hz, respectively

8.11.5 FDT-5

Activated as B contact contrast to FDT-4.

Active condition:

Accel time: Run Frequency >= FDT Level

Decel time: Run Frequency > (FDT Level – FDT Bandwidth/2)

When setting t30 and t31 to 30.0Hz and 10.0 Hz, respectively

8.11.6 Over Voltage Trip (Ovt)

Activated when over voltage trip occurs due to DC link voltage exceeded 460Vdc for

230V class and 820Vdc for 460V class.

Group Display Parameter Name Setting Range Default Unit

I/O

group

t30 [Detected Frequency level] - 0 to 400 30.00 Hz

t31 [Detected Frequency Bandwidth] - 10.00

Cannot be set above Max frequency (P36).

Group Display Parameter Name Setting Range Default Unit

I/O group t30 [Detected Frequency level] - 0 to 400 30.00 Hz

t31 [Detected Frequency Bandwidth] - 10.00

Cannot be set above Max frequency (P36).

Customizing for Your Application 8-25

8.11.7 Low Voltage Trip (Lvt)

Activated when low voltage trip occurs due to DC link voltage under 180Vdc for 200V

class and 360Vdc for 400V class.

8.11.8 Inverter Heatsink Overheat (OHt)

Activated when the heatsink is overheated.

8.11.9 Command Loss

Activated when Analog (V1,I) and RS485 communication commands are lost.

8.11.10 During Operation

Activated when run command is input and inverter outputs its voltage.

8.11.11 During Stop

Activated during stop without active command.

8.11.12 During Constant Run

Activated during constant speed operation.

8-26 VS1-MD AC Drive User Manual

8.11.13 Wait Time for Run Signal Input

This function becomes active during normal operation and that the inverter waits for

active run command from external sequence.

8.11.14 Fault Output

The parameter set in t34 is activated.

For example, if setting t33, t34 to 17 and 2, respectively, Multi-function output relay will

become active when trip other than “Low voltage trip” occurred.

8.11.15 Cooling Fan Trip Alarm

Used to output alarm signal when H78 is set to ”0”(constant operation at cooling fan

trip).

Customizing for Your Application 8-27

8.12 Accel/Decel setting and V/F Control

Reference freq. for

Accel/Decel

time

Digital input filter Multi-Accel/Decel

time select

5,6,7

P1 ~ P8

Max freq.

Accel/Decel

pattern

S-curve1

Linear

Stop method select

DC brake

FreeRun Stop

DC brake freq.

voltage, time

DC brake start freq.

Func. group1

Dwell operation

I/O group

F25

Freq. high/low limit

F26

1~7

Run

command

DC brake voltage

&time

Dwell freq. & time

V/F pattern

Square

User V/F

Freq., Voltage

Torque boost

select

Torque

boost value

Autom atic

Manual

Linear

User V/F

Output voltage

adjustment

Base/start freq.

PWM

Operation

Stop

Frequency

setting

Func. group1

F8 ~ F11

Func. group1

F2, F3

Func. group1

H70

Func. group1

F21

Drive group

ACC

DEC

1st-7th Accel/

Decel time

I/O group

t34 ~ I47

I/O group

t17 ~ I 2 4

I/O group

t27

Func. group1

F8 ~ F11

I/O group

F22

F23

I/O group

F39

Func. group 1

F30

Func. group 1

F27

Func. group 1

F31~F38

Func. group 1

F28

F29

Optimal time

Shortes t time

8-28 VS1-MD AC Drive User Manual

8.13 Control Block Diagram

mG



kG

hVk }Vm

 w~t t

Customizing for Your Application 8-29

8.14 Frequency and Drive Mode Setting

Keypad setting 2

V1_1:-10 ~ 10V

V1_2 : 0 ~ 10V

I:0~20mA

V1_1 + I

V1_2 + I

Drive group

P40

Drive group

St1

St2

St3

I/O group

t10

t11

t12

t13

Zero

speed

I/O group

t1 ~ t8

Speed

1~7

Freq. setting

method

Multi-step freq.

setting

Multi-step operation

select

I/O group

t40, t45

Analog in put filter

I/O g rou p

t36-t49

Analog input scale

Analog input

override

I/O group

Digital input filter

Keypad setting 10

0~+10[V]

Keypad or

Remote

keypad

I/O g rou p

t1 ~ t8

FWD/REV Run command

select for Multi-function

terminals

I/O group

t1 ~ t8

3-Wire

operation

Function group 1

FWD/REV rotation

disable

5,6,7

0,1

Drive

group

drv

Run/Stop command

select

Keypad

1,2

FWD run Disable

REV r un disable

no selection0

I/O g rou p

t1 ~ t8

Up-Down

operation

I/O group

t1 - t8

Jog operation

Function

group 1

F21

F23

Min/Max freq.

15, 16

Function

group 1

F20

Jog freq.

P1 ~ P8

Set freq.

Run/Stop

command

Communication

-10 ~ +10 [V]

0~20[mA]

8-30 VS1-MD AC Drive User Manual

Troubleshooting 9-1

CHAPTER 9

Troubleshooting

The VS1MD constantly monitors its status and provides the following ways to

determine the status of the drive and to troubleshoot problems that may occur:

•LEDS on the drive

•Fault Codes displayed on seven segment display

•Drive monitor and status parameters

•Entries in the fault queue

9.1 Verifying that DC Bus Capacitors are Discharged

Before Servicing the Drive

The drive’s DC bus capacitors retain hazardous voltages after input power has been

disconnected. Perform the following steps before touching any internal components:

Step 1. Turn off and lock out input power. Wait 10 minutes after drive’s 7-segment

display goes blank.

Step 2. Open the drive’s cover.

Step 3. Verify that there is no voltage at the drive’s input power terminals.

Step 4. Once the drive has been serviced, reattach the drive’s cover.

Step 5. Reapply input power to the drive.

ATTENTION: This drive contains high voltage capacitors that take

time to discharge after removal of mains supply. Before working on the

drive, ensure isolation of mains supply from line inputs. Wait ten (10)

minutes for capacitors to discharge to safe voltage levels. Failure to

observe this precaution could result in severe bodily injury or loss of life.

ATTENTION: Only qualified electical personnel familiar with the

construction and operation of this equipment and the hazards involved

should install, adjust, operate, or service this equipment. Read and

understand this manual and other applicable manuals in their entirety

before proceeding. Failure to observe this precaution could result in

severe bodily injury or loss of life.

ATTENTION: DC Bus capacitors retain hazardous voltages after input

power has been disconnected. After disconnectiong input power, wait ten

(10) minutes for the DC Bus capacitors to discharge and then check the

voltage with a voltmeter to ensure the DC bus capacitors are discharged

before touching any internal components. Failure to observe this

precaution could result in severe bodily injury or loss of life.

9-2 VS1-MD AC Drive User Manual

9.2 Determining Drive Status Using the STP/FLT LED

The STP/FLT LED can be used to determine at a quick glance the status of the drive.

If the drive is stopped, but not faulted, this LED will be illuminated solid. If the drive is

running, this LED will be off. If this LED is flashing, then this indicates that the drive is

faulted thus requiring attention. Please refer to figure 9.1.

9.3 Monitoring Drive Status Using the Display

Parameters

The Display Group has multiple parameters that can be utilized for monitoring the

status of the drive and are useful for diagnosing certain situations. Chapter 6

describes how to display these parameters.

If the drive is being operated from the terminal strip, it is useful to monitor the status of

the digital inputs to determine operational problems. The digital input status can be

monitored by displaying parameter d7. The below describes the details of

understanding the status of each of the digital inputs (labeled P1 ~ P8 on the control

board terminal strip). In this example, P1, P3, and P4 are “ON” and P2, P5, P6, P7,

and P8 are “OFF”.

(ON

)

(OFF

)

P8 P7 P6 P5 P4 P3 P2 P1

Troubleshooting 9-3

If the application is using digital outputs to reflect the internal status of the drive, these

can be monitored using parameter d8. The below describes the details of

understanding the status of each of the digital outputs (labeled MO for the open

collector output and 3A/3B/3C for the relay output on the control board terminal strip).

In this example, the multi-function output MO is “ON” and the multi-function relay is

“OFF” (note that the indication for the multi-function relay is an indication of whether or

not the relay coil is energized).

9.4 Reviewing Fault Status of the Drive

As noted in Chapter 6, the Display Group has an entry that designates if there is an

active fault and will display the fault code associated with that fault. The fault codes

are described later in this chapter. While displaying the fault code within the Display

Group, you can press the enter key to display the frequency the drive was running at

when the fault occurred. By pressing the up arrow one time, you can display the

current the drive detected when the fault occurred. By pressing the up arrow again,

you will display the drive status when the fault occurred.

Function Group 2 (H parameters) also contains the current fault along with a history of

the previous 4 faults. These faults are located at parameters H1, H2, H3, H4, and H5.

As with the fault memory in the Display Group, you can subsequently display the

frequency, current, and status for each of these faults using the same procedure

outlined in Chapter 6.

9.5 Fault Codes

Fault codes indicate conditions within the drive that require immediate attention. The

drive responds to a fault by initiating a coast-to-stop sequence and turning off the

power to the motor.

The integral keypad provides visual notification of a fault condition by displaying the

following:

•Fault code on the display. (See table 9.1 for the fault code descriptions.)

•Flashing STP/FLT LED

(ON

)

(OFF

)

MO3A/3B

9-4 VS1-MD AC Drive User Manual

9.5.1 Manually Clearing Faults

Step 1. Note the code of the fault condition on the display.

Step 2. Address the condition that caused the fault. Refer to table 9.1 for a

description of the fault and corrective actions. The cause must be corrected

before the fault can be cleared.

Step 3. After corrective action has been taken, clear the fault and reset the drive.

9.5.2 Automatically Clearing Faults (Auto Restart Feature)

The Auto Restart feature provides the ability for the drive to automatically perform a

fault reset followed by a start attempt without user or application intervention. This

allows remote operation. This feature can only be used for faults that are

auto-resettable.

When this type of fault occurs, and H26 (Auto Restart) is set to a value greater than 0,

a user-configurable timer, H27 (Retry Delay) begins. When the timer reaches zero, the

drive attempts to automatically reset the fault. If the condition that caused the fault is

no longer present, the fault will be reset and the drive will be restarted.

Troubleshooting 9-5

9.5.3 Fault Descriptions

Table 9.1 – Fault Descriptions

Fault Code/

Display Fault Descriptions

Overcurrent The drive diables when the output current is

detected at a level higher than the inverter rated

current.

Ground fault

current The drive disables when a ground fault occurs

and the ground fault current is greater than the

internal setting value of the inverter.

Inverter

Overload The drive disables its output when the output

current of the inverter is greater than the rated

level.

Overload trip The drive disables if the output current of the

inverter is at 150% of the inverter rated current

for more than the current limit time (1 min).

Inverter

overheat The drive disables if the heat sink overheats due

to a damaged cooling fan or a blockage in the

cooling fan by detecting the temperature of the

heat sink.

Output Phase

loss The drive disables its output when one or more

of the output (U, V, W) phases is open. The drive

detects the output current to check the output

phase loss.

Over voltage The drive disables its output if the DC bus

voltage increases above the bus overvoltage

threshold. This fault can also occur due to a

surge voltage generated at the input terminals.

Low voltage The drive disables its output if the DC bus

voltage is less than the undervoltage threshold

because insufficient torque or overheating of the

motor can occur when the input voltage of the

drive is too low.

Electronic

Thermal The internal electronic thermal of the drive

determines the motor heat. If the motor is

overloaded the inverter disables the output. The

drive cannot protect the motor when controlling a

motor having more than 4 poles or multiple

motors.

Input phase

loss Drive output is disabled when one of the input

phases (R, S, T) is open.

Self-

diagnostic

malfunction

Displayed when IGBT damage, output phase

short, output phase ground fault or output phase

open occurs.

9-6 VS1-MD AC Drive User Manual

Parameter save

error Displayed when user-modified parameters fail to

be stored into memory.

Inverter

hardware fault Displayed when an error occurs in the control

circuitry of the drive.

Communication

Error Displayed when the drive cannot communicate

with the keypad.

Remote keypad

communication

error

Displayed when drive and remote keypad do not

communicate with each other. This fault does not

stop Inverter operation.

Keypad error Displayed after drive resets keypad upon a

keypad error and the error remains for a

predetermined time.

Cooling fan

fault Displayed when a fault condition occurs in the

drive cooling fan.

Instant Cut Off Used for the immediate stop of the drive. The

inverter instantly disables the output when the

EST terminal is actuated.

ATTENTION:The inverter resumes regular

operation when turning off the EST terminal

while either the FX or the RX terminal is ON.

External fault A

contact input When multi-function input terminal (t1-t8) is set

to 18 {External fault signal input: A (Normal Open

Contact)}, the inverter disables its output.

External fault B

contact input When multi-function input terminal (t1-t8) is set

to 19 {External fault signal input: B (Normally

Closed Contact)}, the drive disables its output.

Operating

method when

the frequency

command is

lost

When drive operation is set via an Analog input

(0-10V or 0-20mA input) or option (RS485) and

the signal is lost,the drive responds according to

the method set in t62 (Operating method when

the frequency reference is lost).

NTC open When NTC connection is lost, output is disabled.

Table 9.1 – Fault Descriptions

Troubleshooting 9-7

9.6 Fault Correction

Use table 9.2 to troubleshoot the drive. If you cannot resolve the problem using this

table, contact Baldor-Reliance.

Table 9.2 – Corrective Actions

Keypad

Display Fault Cause Remedy

Overcurrent •Accel/Decel time is

too short compared to

the inertia of the load.

•Increase the

Accel/Decel time.

•Load is greater than

the drive rating. •Replace the inverter

with appropriate

capacity

•Inverter enabled when

the motor is rotating. •Resume operation

after stopping the

motor or use H22

(Speed search).

•Output short circuit or

ground fault has

occurred.

•Check output wiring.

•Mechanical brake on

the motor is operating

incorrectly.

•Check the mechanical

brake

ATTENTION:When an overcurrent fault occurs,

the cause of the fault must be corrected before

operation is restarted. Failure to observe this

precaution could result in damage to, or

destruction of, the IGBT.

Ground fault

current •Ground fault has

occurred in the output

wiring of the drive.

•Check the wiring

between the drive and

the motor.

•The insulation of the

motor is damaged. •Replace the motor.

Inverter

Overload •Load is greater than

the drive rating. •Upgrade the capacity

of motor and drive or

reduce the load.

Overload trip •Torque boost scale is

set too large. •Reduce torque boost

scale.

9-8 VS1-MD AC Drive User Manual

Inverter

overheat •Cooling system has

problems. •Check for foreign

substances clogged in

the heat sink.

•Cooling fan has failed. •Replace the old

cooling fan with a new

one.

•Ambient temperature

is too high. •Keep ambient

temperature under 50

degrees C.

Output Phase

loss •Faulty contact in

output contactor. •Replace or repair

output contactor.

•Faulty output wiring •Check output wiring.

Cooling Fan

Fault •An foreign substance

is clogged in a

ventilating slot.

•Check the ventilating

slot and remove the

clogged substances.

•Cooling fan has failed. •Replace the cooling

fan.

Over voltage •Decel time is too short

for the inertia of the

load.

•Increase the Decel

time.

•Regenerative load is

connected to the

drive.

•Use Dynamic Brake

Unit.

•Line voltage is too

high. •Check to see if line

voltage exceeds the

rating.

Low voltage •Line voltage is low. •Check to see if line

voltage is below the

rating.

•Load larger than line

capacity is connected

to line (ex: welding

machine, motor with

high starting current

connected to the

commercial line).

•Check the incoming

AC line. Adjust the

line capacity

corresponding to the

load.

•Faulty contactor on

the input of the

inverter.

•Change contactor.

Table 9.2 – Corrective Actions

Troubleshooting 9-9

9.7 Overload Protection

IOLT : IOLT(inverter Overload Trip) protection is activated at 150% of the inverter

rated current for 1 minute and greater.

OLT : OLT is selected when F56 is set to 1 and activated at 200% of F57[Motor rated

current] for 60 sec in F58. This can be programmable.

Electronic

Thermal •Motor has

overheated. •Reduce load and/or

duty cycle.

•Load is greater than

inverter rating. •Change drive with

higher capacity.

•ETH level is set too

low. •Adjust ETH level to an

appropriate level.

•Drive capacity is

incorrectly selected. •Select correct drive

capacity.

External fault A

contact input •The terminal set to “18

(External fault-A)” or

“19 (External fault-B)”

in t1-t8 within terminal.

•Eliminate the cause of

fault in the circuit

connected to external

fault terminal.

External fault B

contact input

Operating

method when

the frequency

command is

lost

•No frequency

command is applied to

V1 and I.

•Check the wiring of V1

and I and frequency

reference level.

Remote

keypad

communication

error

•Communication error

between drive keypad

and remote keypad.

•Check for connection

of communication line

and connector.

EEP: Parameter save error

HWT: Hardware fault

Err: Communication error

COM: Keypad error

NTC: NTC error

•Call Baldor-Reliance

for assistance.

Table 9.2 – Corrective Actions

9-10 VS1-MD AC Drive User Manual

Technical Specifications A-1

APPENDIX A

Technical Specifications

Appendix A provides technical specifications for the VS1MD drive..

Environment

Altitude 1000 m, (3300 ft.), max without derating

Vibration 5.9m/sec2, (0.6G)

Ambient Operating

Temperature -10º to 50º C, (14 to 122º F)

Storage Temperature -20º to 65º C, (-4 to 149º F)

Relative Humidity 90%, non-condensing

Cooling Method Natural Convection / Forced Air Cooling,

(Fan)

Atmosphere Important: The drive must not be installed in

an area exposed to volatile or corrosive gas,

vapors or dust. If the drive will be stored for a

time before installation, it must be stored in an

area where it will not be exposed to a

corrosive atmosphere.

Control

Control Method V/Hz, Sensorless Vector

Speed Reference

Resolution Digital command: 0.01Hz

Analog signal command: 0.06 Hz, (Max freq.,

60 Hz)

Frequency Accuracy Digital command: 0.01% of Max output freq.

Analog signal command: 0.1% of Max output

freq.

V/Hz Curve Linear, Squared, User custom V/Hz.

Terminal Strip Input

P1 – P8 Multi-function programmable inputs, T/M 1-8

CM Common terminal

A-2 VS1MD User Manual

V1, Voltage Analog

Input -12 - +12 VDC max.

I, Analog Current

Input 0 – 20 mA, Internal resistor, 250 Ohm

Terminal Strip Outputs

VR, Reference

Power Supply 12 VDC Output, 10mA max. Potentiometer 1

– 5 Kohm

AM, Multi-function

Analog Output

Signal

11 VDC, 100 mA max.

MO, Multi-function

Terminal, Open

Collector

<26 VDC, 100 mA

MG, External Power Supply Ground Terminal

24, Power Supply 100 mA max output current

3C, common

Multi-function Relay Output Terminals: Max.

250 VAC, 1A

30 VDC, 1A

Options & Kits B-1

APPENDIX B

Options & Kits

B.1 Remote Option

B.1.1 Remote Keypad

(0.083)

(

(0.059)

(3.74)

(3.27)

(2.76)

(2.85)

(1.43)

(2.58) (0.134)

(0.083) (0.91)

(0.059) (0.55)

(0.177)

B-2 VS1MD User Manual

B.1.2 Remote Cable (2M,3M,5M)

B.1.3 Remote Keypad and Cable Model Numbers

B.1.4 Installation

Step 1. Remove incoming power from VS1MD and wait 10 minutes.

Step 2. Take off the top cover of the I/O board kit and remove the hole cover to

connect remote cable on the side.

CAUTION: Only Baldor cables dhould be used to connect the keypad

and control. These are special cables to protect the control and keypad.

Damage associated with other cable types are not coverd by the Baldor

warranty.

Model number Description

VS1MD-RKEY2 VS1MD to Remote Keypad 2 meter length (6.5 feet)

VS1MD-RKEY3 VS1MD to Remote Keypad 3 meter length (9.8 feet)

VS1MD-RKEY5 VS1MD to Remote Keypad 5 meter length (16.4 feet)

Options & Kits B-3

Step 3. Attach the top cover of the I/O board kit and connect the remote cable as

shown below.

Step 4. Connect the other side of the remote cable to the remote keypad as shown

below.

WARNING: Do not touch any circuit board, power device or electrical

connection before you first ensure that power has been disconnected and

there is no high voltage present from this equipment or other equipment to

which it is connected. Electrical shock can cause serious or fatal injury.

Only qualified personnel should attempt the start-up procedure or

troubleshoot this equipment.

WARNING: Do not remove cover for at least ten (10) minutes after AC

power is disconnected to allow capacitors to discharge. Dangerous

voltages are present inside the equipment. Electrical shock can cause

serious or fatal injury.

ATTENTION:Without Parameter Read (H91), Parameter Write (H92) is

not available since the Remote memory is empty when the Remote

keypad is first used.

ATTENTION:Use only the remote cable supplied in the kit. Other cables

may introduce noise and/or voltage drop and cause erratic or improper

drive operation.

ATTENTION:Check for disconnection of the communication cable

and/or poor cable connection if ì----ì is displayed on the 7-segment

display of the Remote keypad.

B-4 VS1MD User Manual

B.2 Conduit Kit

B.2.1 Conduit Kit Model Numbers

B.2.2 VS1MD-NM1A

B.2.3 VS2MD-NM1B

Conduit Kit Model

VS1MD-NM1A 0.5 and 1.0 HP (0.4 and 0.75 kW)

VS1MD-NM1B 2.0 HP (1.5 kW)

VS1MD-NM1C 3.0 and 5.0 HP (2.2 and 4.0 kW)

VS1MD-NM1D 7.5 and 10.0 HP (5.5 and 7.5 kW)

Options & Kits B-5

B.2.4 VS1MD-NM1C

B.2.5 VS1MD-NM1D

B-6 VS1MD User Manual

B.2.6 Installation

B.2.6.1 VS1MD-NM1A, VS1MD-NM1B, VS1MD-NM1C

Preparation:

Step 1. Remove input power from drive and wait 10 minutes before proceeding.

Step 2. Remove cover from drive exposing the terminal strips.

Step 3. Remove two screws from ground connection bar inside drive to the left of

the power terminals. Retain screws.

Step 4. Remove two screws and cover from front of conduit kit. Retain screws.

Installation (refer to legends in diagram):

Step 1. Snap top vent cover onto the top of the drive, ensuring that all four tabs

correctly engage their respective openings in the drive vent holes.

Step 2. Place the conduit kit, less the cover, such that the lower left tab with the

two holes is over the ground connection bar holes and the top right tab is

inserted in the provided slot, near the bottom right of the drive.

WARNING: Do not touch any circuit board, power device or electrical

connection before you first ensure that power has been disconnected and

there is no high voltage present from this equipment or other equipment to

which it is connected. Electrical shock can cause serious or fatal injury.

Only qualified personnel should attempt the start-up procedure or

troubleshoot this equipment.

WARNING: Do not remove cover for at least ten (10) minutes after AC

power is disconnected to allow capacitors to discharge. Dangerous

voltages are present inside the equipment. Electrical shock can cause

serious or fatal injury.

Options & Kits B-7

Step 3. Install the two screws removed from the ground connection bar during

preparation Step 3 such that they are inserted through the two holes in the

conduit kit prior to engaging the ground connection bar. Install the screw

provded with the conduit kit through the hole in the bottom right corner of the

drive into the top right tab of the conduit kit.

Step 4. After connecting conduits and making control and power connections,

replace the drive cover.

Step 5. Replace the conduit kit cover utilizing the two screws removed in preparation

Step 4.

B.2.6.2 VS1MD-NM1D

Preparation:

Step 1. Remove input power from drive and wait 10 minutes before proceeding.

Step 2. Remove cover from drive, exposing terminal strips.

Step 3. Remove two screws holding wire gland plate to drive. Retain screws.

Remove and discard wire gland plate.

WARNING: Do not touch any circuit board, power device or electrical

connection before you first ensure that power has been disconnected and

there is no high voltage present from this equipment or other equipment to

which it is connected. Electrical shock can cause serious or fatal injury.

Only qualified personnel should attempt the start-up procedure or

troubleshoot this equipment.

WARNING: Do not remove cover for at least ten (10) minutes after AC

power is disconnected to allow capacitors to discharge. Dangerous

voltages are present inside the equipment. Electrical shock can cause

serious or fatal injury.

B-8 VS1MD User Manual

Step 4. Remove two screws and cover from front of conduit kit. Retain screws.

Installation:

Step 1. Slide conduit kit into slots in bottom of drive from which wire gland plate was

removed.

Step 2. Install the two screws removed from the wire gland plate during preparation

Step 3 such that they are inserted through the two holes in the conduit kit

prior to engaging the tapped holes in the drive.

Step 3. After connecting conduits and making control and power connections,

replace the drive cover.

Step 4. Replace the conduit kit cover utilizing the two screws removed in preparation

Step 4.

B.2.7 Conduit Hole Size

NOTE: Choose the proper size of the UL recognized Locknut and Bushing

corresponding to size of the Conduit in use.

Conduit Kit

Conduit hole for control wiring

inches (mm) Size of the Conduit

Inches (Metric)

Conduit hole for power wiring

inches (mm)

VS1MD-NM1A 0.87 (22.2) 1/2 (16)

0.87 (22.2) 1/2 (16)

VS1MD-NM1B 0.87 (22.2) 1/2 (16)

0.87 (22.2) 1/2 (16)

VS1MD-NM1C 0.87 (22.2) 1/2 (16)

0.87 (22.2) 1/2 (16)

VS1MD-NM1D 0.87 (22.2) 1/2 (16)

1.38 (35.0) 1 (27)

Options & Kits B-9

B.3 Braking Resistor

Input

Voltage

Inverter

capacity HP

(kW)

100 % braking 150% braking

ΩΩ1

1The wattage is based upon a 5% duty cycle with maximum continuous

braking time of 15 sec.

ΩΩ1

230

0.5 (0.4) 400 50 300 100

1.0 (0.75) 200 100 150 150

2.0 (1.5) 100 200 60 300

3.0 (2.2) 60 300 50 400

5.0 (3.7) 40 500 33 600

7.5 (5.5) 30 700 20 800

10.0 (7.5) 20 1000 15 1200

460

0.5 (0.4) 1800 50 1200 100

1.0 (0.75) 900 100 600 150

2.0 (1.5) 450 200 300 300

3.0 (2.2) 300 300 200 400

5.0 (3.7) 200 500 130 600

7.5 (5.5) 120 700 85 1000

10.0 (7.5) 90 1000 60 1200

B-10 VS1MD User Manual

RS485 Protocol C-1

APPENDIX C

RS485 Protocol

C.1 Introduction

The drive can be controlled and monitored by the program of aPLC or other master

module.

Drives or other slave devices may be connected in a multi-drop fashion on the RS-485

network and may be monitored or controlled by a single PLC or PC. Parameters can

be set and changed through the PLC or PC.

C.1.1 Features

The VS1MD can easily be utilized for factory automation applications because

operation and monitoring are available by the user’s program.

•Parameter change and monitoring is available via computer. (Ex: Accel/Decel time,

Freq. Command etc.)

•RS484 Interface:

1. Allows the drive to communicate with any other computers or PLC’s.

2. Allows connection of up to 31 drives with multi-drop link network.

3. Inherent noise immune design.

Users can use readily available RS232-485 converters. The specifications of

converters depend on the manufacturers.

C.1.2 Before Installation

ATTENTION:Before installation and operation, this manual should be

read thoroughly. Failure to observe this precaution could result in

personal injury or damage to the equipment.

C-2 VS1MD User Manual

C.2 Specifications

C.2.1 Performance Specifications

C.2.2 Hardware Specifications

C.2.3 Communication Specifications

Item Specification

Communication method RS485

Transmission form Bus method, Multi drop Link System

Applicable inverter VS1MD series

Converter RS232 converter

Connectable drives Max 31

Transmission distance Max. 1,200m (Within 700m Recommend)

Item Specification

Installation Use S+, S- terminals on control terminal block

Power supply Use Insulated power from the inverter power supply

Item Specification

Communication speed 19,200/9,600/4,800/2,400/1,200 bps selectable

Control procedure Asynchronous communication system

Communication system Half duplex system

Character system ASCII (8 bit)

Stop bit length Modbus-RTU: 2 bit LS Bus: 1 bit

Sum check 2 byte

Parity check None

RS485 Protocol C-3

C.3 Installation

C.3.1 Connecting the Communication Line

Step 1. Connect the RS485 communication line to the inverter’s (S+), (S-) terminals

of the control terminals.

Step 2. Check the connection and turn ON the inverter.

Step 3. If the communication line is connected correctly, set the

communication-related parameters as follows:

•P38 [Drive mode]: 3(RS485)

•P40 [Freq. mode]: 7(RS485)

•t60 [Inv. Number]: 1 to 250 (If multiple inverters are connected, be sure to use

different numbers for each inverter)

•t61 [Baud-rate]: 3 (9,600 bps as Factory default)

•t62 [Lost Mode]: 0 - No action (Factory default)

•t63 [Time-Out]: 1.0 sec (Factory default)

•t59 [Comm. Prot]: 0 - Modbus-RTU

C.3.2 Computer and Inverter Connection

The maximum number of drives that can be connected is 31.

The maximum length of communication line is 1200m. To ensure stable

communication, keep the length to less than 700m.

C.4 Operation

C.4.1 Operating steps

Step 1. Check whether the computer and the inverter are connected correctly.

Step 2. Turn ON the inverter. But do not connect the load until stable communication

between the computer and the inverter is verified.

Step 3. Start the operating program for the inverter from the computer.

Step 4. Operate the inverter using the operating program for the inverter.

Step 5. Refer to Chapter 9: Troubleshooting if the communication is not operating.

C-4 VS1MD User Manual

C.5 Communication Protocol (MODBUS-RTU)

Use Modbus-RTU protocol (Open protocol).

Computer or other hosts can be Master and inverters Slave. Inverter responds to

Read/Write command from Master.

C.6 Communication Protocol (LS Bus)

C.6.1 Basic Format

Command message (Request):

Normal response (Acknowledge Response):

Negative response (Negative Acknowledge Response):

Table C.1 – Supported function codes

Function code Description

0x03 Read Hold Register

0x04 Read Input Register

0x06 Preset Single Register

0x10 Preset Multiple Register

Table C.2 – Exception codes

Function code Description

0x01 ILLEGAL FUNCTION

0x02 ILLEGAL DATA ADDRESS

0x03 ILLEGAL DATA VALUE

0x06 SLAVE DEVICE BUSY

User

define 0x14 1.Write Disable (Address 0x0004 value is 0).

2.Read Only or Not Program during Running.

ENQ Drive No. CMD Data SUM EOT

1 byte 2 bytes 1 byte n bytes 2 bytes 1 byte

ACK Drive No. CMD Data SUM EOT

1 byte 2 bytes 1 byte n * 4 bytes 2 bytes 1 byte

NAK Drive No. CMD Error code SUM EOT

1 byte 2 bytes 1 byte 2 bytes 2 bytes 1 byte

RS485 Protocol C-5

Description:

Request starts with “ENQ” and ends with “EOT”.

Acknowledge Response starts with “ACK” and ends with “EOT”.

Negative Acknowledge Response starts with ”NAK” and ends with “EOT”.

“Drive Number” is the number of the drive and is indicated in 2 byte ASCII-HEX.

(ASCII-HEX: Hexadecimal consists of ‘0’ to ‘9’, ‘A’ to ‘F)

CMD: Capital letter

Data: ASCII-HEX

Example: when data value is 3000: 3000 (dec) ‘0’ ‘B’ ‘B’ ‘8’h 30h 42h 42h 38h

Error code: ASCII (20h to 7Fh)

Receive/Send buffer size: Receive= 39 byte, Send=44 byte

Monitor register buffer: 8 Word

SUM: to check the communication error

SUM= ASCII-HEX format of lower 8 bit of (Drive No. + CMD + DATA)

Example: Command Message (Request) to read one address from address “3000”

SUM = ‘0’ + ‘1’ + ’R’ + ‘3’ + ‘0’ + ‘0’ + ‘0’ + ‘1’

=30h + 31h + 52h + 33h + 30h + 30h + 30h + 31h

= 1A7h (Control values such as ENQ/ACK/NAK are excluded.)

Character ASCII-HEX Command

R 52h Read

W 57h Write

X 58h Request for monitoring

Y 59h Action for monitoring

ENQ Drive

No CMD Address Number of address to

read SUM EOT

05h “01” “R” “3000” “1” “A7” 04h

1 byte 2 bytes 1 byte 4 bytes 1 byte 2 1

C-6 VS1MD User Manual

C.6.2 Detail Communication Protocol

C.6.2.1 Request for Read:

Request to read successive ‘N’ numbers of WORD from address “XXXX”.

Total bytes = 12

Note: Quotation marks (“ ”) indicate character.

C.6.2.2 Acknowledge Response:

Total bytes= 7 + n * 4 = Max 39

C.6.2.3 Negative Acknowledge Response:

Total bytes = 9

C.6.2.4 Request for Write:

Total bytes = 12 + n * 4 = Max 44

ENQ Drive No CMD Addres

sNumber of address to

read SUM EOT

05h “01” to “R” “XXXX “1” to “8” = n “XX” 04h

1 byte 2 bytes 1 byte 4 bytes 1 byte 2 1

ACK Drive No CMD Data SUM EOT

06h “01” to “1F” “R” “XXXX” “XX” 04h

1 byte 2 bytes 1 byte N * 4 bytes 2 byte 1 byte

NAK Drive No CMD Error code SUM EOT

15h “01” to “1F” “R” “**” “XX” 04h

1 byte 2 bytes 1 byte 2 bytes 2 bytes 1 byte

ENQ Drive No CMD Address Number of

address to

read

Data SUM EOT

05h “01” to “W” “XXXX” “1” to “8” = n “XXXX “XX” 04h

1 byte 2 bytes 1 byte 4 bytes 1 byte n*4 2 1

RS485 Protocol C-7

C.6.2.5 Acknowledge Response:

Total bytes = 7 + n * 4 = Max 39

Note: When Request for Write and Acknowledge Response is exchanged between

PC and Inverter for the first time, previous data is returned. From subsequent

transmissions, the current data will be returned.

C.6.2.6 Negative Response:

Total bytes = 9

C.6.2.7 Request for Monitor Register

This is useful when constant parameter monitoring and data updates are required.

Request for Register of ‘n’ numbers of Address (not consecutive)

Total bytes = 8 + n * 4 = Max 40

C.6.2.8 Acknowledge Response:

Total bytes = 7

C.6.2.9 Negative Acknowledge Response:

Total bytes = 9

ACK Drive No CMD Data SUM EOT

06h “01” to “1F” “W” “XXXX…” “XX” 04h

1:byte 2:bytes 1:byte n * 4 bytes 2 bytes 1

NAK Drive No CMD Error code SUM EOT

15h “01” to “1F” “W” “**” “XX” 04h

1 byte 2 bytes 1 byte 2 bytes 2 bytes 1

ENQ Drive No CMD Number of address to

read Addres

sSUM EOT

05h “01” to “X” “1” to “8”=n “XXXX “XX” 04h

1 byte 2 bytes 1 1 byte n * 4 2 byte 1

ACK Drive No CMD SUM EOT

06h “01” to “1F” “X” “XX” 04h

1 byte 2 bytes 1 byte 2 bytes 1 byte

NAK Drive No CMD Error code SUM EOT

15h “01” to “1F” “X” “**” “XX” 04h

1 byte 2 bytes 1 byte 2 bytes 2 bytes 1 byte

C-8 VS1MD User Manual

C.6.2.10 Action Request for Monitor Register:

Request to read address registered by monitor register.

Total bytes = 7

C.6.2.11Acknowledge Response:

Total bytes = 7 + n * 4 = Max 39

C.6.2.12Negative Response:

Total bytes = 9

C.6.2.13Error codes

ENQ Drive No CMD SUM EOT

05h “01” to “1F” “Y” “XX” 04h

1 byte 2 bytes 1 byte 2 bytes 1 byte

ACK Drive No CMD Data SUM EOT

06h “01” to “1F” “Y” “XXXX…” “XX” 04h

1 byte 2 bytes 1 byte n * 4 bytes 2 bytes 1 byte

NAK Drive No CMD Error code SUM EOT

15h “01” to “1F” “Y” “**” “XX” 04h

1 byte 2 bytes 1 byte 2 bytes 2 bytes 1 byte

Error code Description

“IF” When master is sending codes other than Function code (R, W, X,

“IA” When parameter address does not exist

“ID” When Data value exceeds its permissible range during ‘W’ (Write).

“WM” When the specific parameters cannot be written during ‘W’ (Write).

(For example, in the case of Read Only, Write disabled during Run)

“FE” When frame size of specific function is not correct and Checksum

RS485 Protocol C-9

C.7 Troubleshooting

Refer to Troubleshooting when RS 485 communication error occurs.

Check Points Corrective Measures

Is power provided to the converter? Provide electric power to the converter.

Are the connections between converter

and computer correct? Refer to the converter manual.

Is Master not polling? Verify the Master is polling the drive.

Is baud rate of computer and drive set

correctly? Set the correct value.

Is the data format of user program

correct? Set data formats equal between drive and

computer.

Is the connection between the converter

and the communication card correct? Check for the correct wiring.

C-10 VS1MD User Manual

C.8 Miscellaneous

ASCII Code List

Character Hex Character Hex Character Hex Character Hex Character Hex

space

(

)

;

[

]

{

}

BEL

CAN

DC1

DC2

DC3

DC4

DEL

DLE

ACK

ENQ

EOT

ESC

ETB

ETX

NAK

NUL

SOH

STX

SUB

SYN

DIF

Documentation

Improvement Form

Use this form to give us your comments concerning this publication or to report an

error that you have found. For convenience, you may attach copies of the pages with

your comments. After you have completed this form, please return it to:

Baldor V*S Drives

Technical Documentation

6040 Ponders Court

Greenville, SC 29615

Fax: 864-284-5483

Thank you for your comments.

Publication Name: VS1MD User Manual

Publication Date: 2007

Comments:

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Date: DIF Number:

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VS1MD User Manual

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