Hardware reference guide

Power Supplies
92
35013379 02 October 2007
LED Indicator
and Description
The following figure shows the CPS12420 LED indicator.
The following table shows the CPS12420 LED description.
Wiring Diagram The following figure shows the CPS12420 wiring diagram.
LED Description
LEDs Color Indication when On
Pwr ok Green Power is supplied to the bus.
Pwr ok
Note: A normally closed relay contact rated at 220 Vac, 6A / 30 Vdc, 5A is available
on terminals 1 and 2 of the power terminal strip. This contact set may be used to
signal input power OFF. The relay will de-energize when input power drops below
8 Vdc.
Note: See Power and Grounding Considerations for AC and DC Powered
Systems, p. 776 for power and grounding wiring guidelines and operational
information.
AC L
AC N
1
2
3
4
5
6
7
Install jumper
for 115 VAC
operation only
Power loss alarm
This document provided by Barr-Thorp Electric Co., Inc. 800-473-9123 www.barr-thorp.com