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OVERVIEW

The following procedure is a supplement to other documentation 

available for the IMPULSE•G+/VG+ Series 4 variable frequency 

drive (VFD). This will guide the user in proper installation and setup 

of the system.

Before using the VFD-controlled equipment, the operator shall 

read the operating manual of the hoisting machine, shall be 

trained, and has to know all hazards by operating of cranes, hoists, 

or lifting devices.

When installing the system, be sure to follow good wiring practices 

and all applicable codes. Ensure that the mounting of components 

is secure and that the environment, such as extreme dampness, 

poor ventilation, etc., will not cause system degradation.
Read this document thoroughly before attempting installation. 

Refer to the technical manual available at: 

www.columbusmckinnon.com/magnetek.

Step 1

Connect Motor and Line Power

The following figure shows the electrical connections for the input 

power and motor terminals on IMPULSE•G+/VG+ Series 4 VFD. 

Make the appropriate connections with power turned off. Follow 

good wiring practices and follow all applicable electrical codes. 

Ensure the equipment is properly grounded, as shown.

DANGER! DANGEROUS VOLTAGES ARE PRESENT 

WHEN VFD IS ON. Improper wiring can cause bodily 

harm and damage to the equipment. Before applying 

power to the IMPULSE•G+/VG+ Series 4, ensure that all 

protective covers are fastened and all wiring connec-

tions are secure. After power has been turned OFF, wait 

at least 5 minutes until the charge indicator extin-

guishes completely before touching any wiring, circuit 

boards, or components.

WARNING: DO NOT CONNECT ANY OF THE FOLLOWING 
TERMINALS TO EARTH GROUND.

WARNING  DO NOT CONNECT ANY OF THE 

FOLLOWING TERMINALS TO EARTH GROUND

B1

B2

-

+1

+2

+3

Use L1, L2, L3 for

3Ø Input Power

To change 
direction of 

motor rotation 
swap any 

two 

of the

 three 

motor leads 

(See Step 2)

Use L1, L2 for 

1Ø Input Power

3Ø Induction 

motor

Connect 
frame to 

ground

Input

Protection

(Fuse or Circuit 

Breaker)

L1 L2 L3

(R/L1)

(S/L2)

(T/L3)

(U/T1)

(V/T2)

(W/T3)

Connect to 

chassis ground

*

DC Bus terminals 
location varies by 

model.

Step 2

Typical Connection Diagram

This step shows a typical wiring diagram and connection points for the IMPULSE•G+/VG+ 
Series 4 VFD. Wiring connections should only be made by trained and authorized 
personnel when power to the VFD is turned off.

Dynamic Braking**

+1

+2

+3

-

B1

B2

R/L1

U/T1

V/T2

W/T3

S/L2

T/L3

3-Phase

Power Supply

50/60Hz

Load Reactor

(Oponal)

Motor

IM

PG

T1

T2

T3

A+

A-

B+

B-

Z+

Z-

IP

IG

FE

a+

a-

b+

b-

z+

z-

PG-X3 (V

G+ Series 4 only)

MA

MB

MC

M0

M1

M2

M3

M5

M6

Mul-Funcon Analog Output 1 FM

Mul-Funcon Analog Output 2 AM

Mul-Funcon Pulse Train Output MP

AC

DM+

DM-

E(G)

X1A

X1

X2

250V

A

C/30VDC, 30A

Brake Contactor

Brake Contactor

Alarm Contactor

+

+

-

-

Mul-Funcon

Digit

a

l Outputs 2-4

Mul-Funcon

Analog Outputs 1-2

0 to +/-10 VDC, 2mA

4-20 mA (FM only)

Mul-Funcon Pulse Output

0 to 32kHz, 9 VDC @ 3k

Ω

+/-5% Accuracy

Safety Electronic Device Monitor

Requires oponal 120 VAC, 42-48 VAC, or 24 VAC interface board. 24 VDC is also available.

**  Set L08-55 to 0 when using an external dynamic braking opon.
 

Resistor is connected to B1 and B2. CDBR is connected to – and +3.

***  24VDC interface board has terminals SN, SC, and SP instead of X2. 

Safety Controller

(Oponal)

HC

H1

H2

IG

S-

S+

R-

R+

AC

RP  Mul-funcon Pulse Input
0 to 32 kHz

A3  Mul-funcon Analog Input 3
-10 to +10 VDC, 0 to +10 VDC (20k

Ω

) PTC

A2  Mul-Funcon Analog Input 2
-10 to +10 VDC, 0 to +10 VDC (20k

Ω

)

4 to 20 mA (250

Ω

)

A1  Mul-Funcon Analog Input 1
-10 to +10 VDC, 0 to +10 VDC (20k

Ω

)

-V  -10.5 VDC +/-10%, 20 mA

+V  +10.5 VDC +/-10%, 20mA

E(G)

S8  MFDI 8

S7  MFDI 7

S6  MFDI 6

S5  MFDI 5

S4  MFDI 4

S3  MFDI 3

S2  MFDI 2

S1  MFDI 1

X2  Common***

X2  Common***

X2  Common***

X2  Common***

120

Ω

Terminang

Resistor

DIP Switch S2

Modbus RTU

Communicaons

RS-485/422

115.2 kbps Max.

2k

Ω

Digit

a

l Inputs

X2

X1

L1

L2

L3

EXT FAULT

MICROSPEED

SPEED 5

SPEED 4

SPEED 3

SPEED 2

REV/DOWN

FWD/UP

ULS2

LLS2

120 VAC*

24 VAC*

42-48 VAC*

Branch

Circuit

Protecon &

Disconnect

Line Reactor

(Oponal)

Inputs

Outputs

Step 3

PG-X3 Encoder Feedback Card and Encoder Wiring 
(IMPULSE•VG+ Series 4 Only)

In this step the PG-X3 encoder feedback card is installed. 

WITH POWER OFF

install the PG-X3 card as shown below. 

Make sure to follow good wiring 

practices and follow all applicable codes. Ensure that the feedback card is 
grounded properly as shown in item H below.

Option Card Installation

This option card can be inserted into the CN5-C (top) connector located on the 
drive’s control board.

Encoder Power Supply

Encoder Connection

(Max. 200mA)

Select Encoder Power 
Supply (IP + IG TB2) 
with Jumper CN3.

It is required to use a differential quadrature 

encoder in Flux Vector control mode 

(A01-02 = 3).

PG-X3 Encoder Wiring

Ground Lead

 A  

– Connector CN5-C

 B 

– Connector CN5-B

 C 

– Connector CN5-A

 D 

–  Drive grounding terminal (FE)

 E 

–  Insert connector CN5 here

 F 

–  Option card

 G 

–  Mounting screw

 H 

–  Lead line ground

  I 

–  Use wire cutters to create an 

     opening for cable lines

 J 

–  Front cover

 K 

–  Digital operator

 L 

–  Terminal cover

– Terminal block TB1

– Ground terminal (installation hole)

– Jumper for PG power supply voltage (CN3)

– Terminal block TB2

– Model number

– Installation hole

– Connector (CN5)

PG-X3 Option Card

Default

IMPORTANT: Verify Encoder 
Power Supply Rating

B+

Z+

Z-

SD FE

A-

B-

A+

PG-X3 Terminals

a+

a-

b-

z+

IG

SG

IP

b+

z+

TB1

TB2

-

Encoder 

Power

Encoder Signals

PG

(Required for Flux Vector Operation)

IMPULSE

®

•G+/VG+ Series 4 Variable Frequency Drive

Quick Start Guide

N49 W13650 Campbell Drive
Menomonee Falls, WI 53051
Phone: 262.783.3500
Fax: 262.783.3510
Toll-Free Phone: 800.288.8178
Toll-Free Fax: 800.298.3503

For questions regarding service or technical information contact:
1.833.SVC.CMCO (1.833.782.2626)

International Service
Outside the U.S. & Canada call 1.262.783.3500, press 3

www.columbusmckinnon.com/magnetek

IMPULSE•G+/VG+ Series 4 Quick Start Guide

144-27514 R1

August 2020 © Copyright 2020 Magnetek

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