Hardware reference guide

Power Supplies
35013379 11/2011 99
Wiring Diagram and Timing Chart
The following figures show the 140CPS22400 wiring diagram (left) and the
140CPS22400 hold-up capacitor timing chart (right).
NOTE:
1. 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, or a power supply failure. The relay will de-energize
when input power drops below 8 Vdc.
2. Tolerance to input interruptions may be increased by adding a ≥ 50 Vdc
electrolytic capacitor between 5 and 6 of the power terminal strip. Refer to the
hold-up capacitor timing chart (above) for capacitor values.
NOTE: See Power and Grounding Considerations for AC and DC Powered
Systems, page 731 for power and grounding wiring guidelines and operational
information.