32 Rockwell Automation Publication 750-RM004A-EN-P - April 2018
Chapter 1 Selection Considerations
Connections are made to the control busbars using a 20-750-CTRLBUS-
CONN1 control bus connector. Taps from the control bus connector are rated
for 10 A.
External 240V AC control power requirements greater than 10 A total can be
made using the Control Bus Connector, 0-750-MCTRLBUS-CONN2. This
connector is rated for 100 A to match the control bus rating.
Figure 7 - PowerFlex 755T Control Bus Configuration (Shown with External 240V AC Control
Power Connector)
ATTENTION: If an internal control transformer is installed, DO NOT connect
external 240V AC control power. Severe damage to the PowerFlex 755T and
external power supplies could occur.
IMPORTANT The PowerFlex 755T product control busbars and splice kits are not
compatible with other enclosure busbar systems that may have been used
with PowerFlex 700S drives. If it is necessary to connect to existing control
busbars, the migration solution designer is responsible for the proper design
and installation of any busbar transition equipment required.
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