Rockwell Automation 8720MC 8720MC Regenerative Power Supply User Manual - Manual (Page 28)

When two units are connected in parallel, turn the switches
SW7-1 and SW7-2 to the ON side, and when three units are
connected in parallel, turn the switches SW7-1 through SW7-3
to the ON side.
Slave Unit 2
Slave Unit 1
Master Unit
SW7-4
SW7-3
SW7-2
SW7-1
ON OFF
ENABLE BASE BLOCK
Keep SW7-4 always to the OFF side.
When the switch is turned to the OFF side, the base signal is
interrupted, and the unit will be in the OFF condition.
When the switch is turned to the ON side, the base signal is
kept ON, and PWM switching will continue.
2-16 About 8720MC-RPS Regenerative Power Supply