32 Rockwell Automation Publication 440G-UM001B-EN-P - May 2016
Chapter 4   Description of Operation
Connection of Guard Locking 
Control
With two-channel control, the jumper between IMP1 and IMP2 must be 
removed. Connection as shown above.
Dual-Channel 
Solenoid Control
Hardware Rev B provides the possibility of a dual lock command. Rev B 
models have three possibilities for solenoid control of the 442G-MAB:
a.  1-channel IMP1 (+24VDC) with jumper 
b. 2-channel IMP1 (+24VDC) and IMP2 (+24VDC)
c. 2-channel IMP1 (+24VDC) and IMM (0V)
The factory-default setting for Rev B models is for single-channel control (a 
jumper installed in the base of the lock module connects IMP1 and IMP2).
MAB
O1
IMP1 IMP2
MAB
O1
IMP1 IMP2 IMM
O2
MAB
PLC PLC PLC
O1
IMP1 IMP2 IMM
O2
1-channel control
1 x p-switching
2-channel control
2 x p-switching
2-channel control
1 x p-switching
1 x n-switching
Jumper (default)
Signal Terminal Name (Rev A) Name (Rev B)
Lock Command A x3.7 IMP IMP1
Lock Command B x3.6 n/a IMP2
Alternate Lock Command B X3.8 n/a IMM
IMPORTANT The jumper between IMP1 and IMP2 must be removed for dual-channel 
control.
87654321
87654321
X5 X4
X3
optional cover function*
X2
IMM
IMP1
IMP2
0V
UA
OT
OL
OI
0V
UB
OD
654321
FI1B
*
FO1A
FO1B
RST
FI1A
654321