Rockwell Automation Publication 1769-UM021G-EN-P - October 2015 315
Appendix C
Connect Power to the Series A L1 CompactLogix
5370 Controllers
This appendix explains how to connect power to the series A L1 CompactLogix™
5370 controllers.
CompactLogix 5370 L1,
Series A, Controller Power
Connection
The external power supply must be dedicated to the embedded supply of the
controller. The external power supply converts 115/230V AC power to 24V DC
or other application-required DC voltage that is within the operating range of
the controller.
Topic Page
CompactLogix 5370 L1, Series A, Controller Power Connection 315
CompactLogix 5370 L1, Series A, Controller Field Power to I/O Devices Connection 321
This section describes how to power the controller via the VDC+ and VDC-
terminals.
Connections to the VDC+ and VDC- terminals do not provide power to input or
output devices that are connected to the embedded I/O modules of the
controller or local expansion modules. Power must be connected to the FP+
and FP- terminals to provide power to input or output devices that are
connected to the embedded I/O modules of the controller or local expansion
modules.
For more information on how to provide power to input or output devices that
are connected to the embedded I/O modules of the controller and local
expansion modules, see page 321
.
WARNING: Do not connect directly to line voltage. Line voltage must be
supplied by a suitable, approved isolating transformer or power supply having
short circuit capacity not exceeding 100VA maximum or equivalent. The
controller power requirement is 50VA.
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