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Rockwell Automation Publication 8720MC-RM001K-EN-P - September 2018
Chapter 5
Connect the 8720MC-RPS Unit
Figure 41 - Ribbon Cable Locations (series B)
Ribbon Cable Wiring in Parallel Operation
For 8720MC-RPS065BS units, the low height lock is used for both ends of the
ribbon cable in parallel operation. The cable connector is not keyed, so be
careful not to insert the CN2 and CN3 connectors backwards.
For 8720MC-RPS190BS units, high and low height locks are used on ribbon
cables in parallel operation. If the cable is inserted backwards, the locks will not
function properly.
See the labels placed on the ribbon cables. As shown below, apply the higher
lock to the leader/follower 1 side, and the lower lock to the follower 1 /
follower 2 side.
Figure 42 - Ribbon Cable for Follower Units (series B)
IMPORTANT
Make sure cables are inserted properly. If aligned properly, excessive force is
not required. Cables inserted backwards or misaligned with the mating
connector can result in a power module failure or damage to the connectors.
Leader/Follower1 Side
Follower1/Follower2 Side
High
Low
Low
Low
8720MC-RPS065BS
8720MC-RPS190BS