316 Rockwell Automation Publication 1769-UM021I-EN-P - May 2018
Appendix C Connect Power to the Series A CompactLogix 5370 L1 Controllers
Power is connected to the controller via a removable connector that is
connected to the front of the controller. The following graphic shows the
connector.
Consider these points before completing the steps in this section:
• This section describes how to connect an external 24V DC power
source to the CompactLogix 5370 L1 controller.
For information on how to provide field power to input and output
devices that are connected to the embedded I/O modules of the
controller and local expansion modules via the removable connector, see
page 144
.
• The external power supply that provides power to the
CompactLogix 5370 L1 controller must be dedicated to power
the controller.
• You must use a separate, dedicated external 24V DC power source to
connect power to other terminals on the removable connector and
devices in the system, for example, the FP+ terminal or a barcode
scanner, respectively.
• The external 24V DC power source that is connected to the VDC+ and
VDC- terminals on the removable connector must reside in the same
enclosure as the CompactLogix 5370 L1 controller.
IMPORTANT The controller is grounded once it is installed on a DIN rail as described in
Mount the System on page 32
.
ATTENTION: You must use an external power supply that is Class 2 or
SELV-listed.
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