Rockwell Automation 1771-PM , D17716.5.18 U MNL 1771-PM CLUTCH/BRAKE MOD - Manual (Page 66)

Field Wiring Arm Connections
Chapter 6
6Ć14
Figure 6.3
Connections for Main and Auxiliary Valve Solenoids, MOV Surge Suppression, Crowbar and
Seal Relays (Ungrounded AC Power)
LRB LRA LRB LRA
3L1
Main Valve
Solenoids
A B
A B
3L2
2L2
2L2
Chassis A
1
2
3L2
Module Group 2
Slot 1
Module Group 3
Slot 0
NOTES: Use this wiring with figure 6.1 for ungrounded AC power.
LRA and LRB load resistors for triac feedback are 2K ohm, 15 watt resistors
Each solenoid or relay coil should draw at least 60mA.
Connect one MOV between 3L1 and 3L2 for electrical noise suppression.
Connect one MOV to the 3L1 side of each solenoid load and to 3L2 for electrica
l noise suppression.
If solenoid are not used, replace with 2K ohm, 15 watt resistors.
1
2
17882
B
B
A
A
Seal Relay
Crowbar Relay
Auxiliary
Valve
Solenoids
4
2
2
3
3
4
3L1
3L2
Crowbar Relay
Seal Relay
A
0
1
2
3
4
5
6
7
A
0
1
2
3
4
5
6
7
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
2
5
4
5
Chassis B
B
B
Chassis A
Chassis B
1771ĆIA 1771ĆOD