Hardware reference guide

Power Supplies
35013379 02 October 2007 97
Specifications The following table shows the specifications for the 140CPS21400 PS 24 Vdc power
supply module.
LED Indicator
and Description
The following figure shows the CPS21400 LED indicator.
The following table shows the CPS21400 LED description.
Specifications
Input Requirements
Input Voltage 20 ... 30 Vdc
Input Current 3.8 A max
Inrush Current 25 A @ 24 Vdc. 14 A @ 20 Vdc
Input Ripple 2.4 Vdc max, 94 ... 189 Hz
Input Power Interruption 1 ms max @ 24 Vdc (see the hold-up capacitor timing chart)
Fusing (external) 5.0 A slo-blo recommended (Part # 043502405 or equivalent)
Output to Bus
Voltage 5.1 Vdc
Maximum Current 8 A
Minimum Current None required
Protection Over Current, Over Voltage
General
Field Wiring Connector 7 point terminal strip (Part # 043503328)
Internal Power Dissipation 6.0 + 1.8 x I
OUT
= Watts (where I
OUT
is in Amperes)
Operating Mode Standalone / Summable
LED Description
LEDs Color Indication when On
Pwr ok Green Power is supplied to the bus.
Pwr ok
This document provided by Barr-Thorp Electric Co., Inc. 800-473-9123 www.barr-thorp.com