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48VAC Interface Option Card 

                                                                              

G+Mini 48VAC IF CARD 

                                                                                                              

144-25076 

 

January 2009                                                                                                                                                   Page 1 of 2                                           

 

 

Part Number: 

144-25079 (G+M 48VAC IF CARD) 

 

Applicability: 

G+ Mini 

 

Introduction: 

The G+M 48VAC Interface option card mounts directly to the control board 

terminals (S1 – S7 and SC) on the drive.  This card allows 48 VAC control logic circuits to 
interface with the seven digital inputs (S1 – S7) with the G+ Mini control circuitry. 

 

 
Receiving: 

All equipment is tested against defect at the factory. Report any damages, shortages 

evident when the equipment is received to the commercial carrier who transported the equipment. 
 

Warning: 

Hazardous voltage can cause severe injury or death. Lock all power sources feeding 

the drive and the option card’s wiring in the “OFF” position. 
 

Important: 

When

 

handling boards always use electrostatic discharge (ESD) protection. Keep the 

boards in the ESD bag as long as you can. Do not lay the board on any surfaces without ESD 
protection. When handling, always hold the board from the edges and do not touch the 
components. Before installing this option card, a technically qualified individual, who is familiar 
with this type of equipment and the hazards involved, should read this entire installation guide. 
 

Control Circuit Terminals: 

The G+ M 48V IF CARD has seven optically isolated input terminals which can be used to 
connect with the user 48 VAC devices.  The interface card connects to drive terminals S1-S7 and 
SC. The users 48 VAC input devices will then connect to terminals S1-S7 and X2 on the interface 
card. Terminals S1 and S2 are factory set for the forward (up) and reverse (down) run 
commands; however, they can be programmed for speed control and other functions like the 
remaining terminals.  Figure 1 shows the control terminal arrangement for the IMPULSE•G+ Mini 
with the 48V interface card along with a simplified wiring diagram.  

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Figure 1.

 Typical 48 VAC Interface Card Wiring

48 VAC 

INTERFACE 

CARD

48 VAC

X2

S1

S2

S3

S4

S5

S6

S7

SC Common

S1 Forward/Up Input

S2 Reverse/Down Input

S3 Multi-function Input

S4 Multi-Function Input

S5 Multi-Function Input

S6 Multi-Function Input

S7 Multi-Function Input

FWD

REV

Spd 2

Spd 3

Spd 4

Spd 5

UL2

LL2

X2

X1

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