Rockwell Automation Publication 1769-UM021G-EN-P - October 2015 147
Use I/O Modules with CompactLogix 5370 L1 Controllers Chapter 7
3. Loosen the screws that secure the removable connector to the 
CompactLogix 5370 L1 controller and pull the connector off the 
controller.
4. Connect the wire that is connected to the + terminal on the external 24V 
DC power source to the FP+ terminal, that is, the fourth terminal from 
the top, on the removable connector. 
Wires that are connected between external 
24V DC power source and VDC+ and VDC- 
terminals on the removable connector.