FAQ

In Addition

Power Supplies

Wiring Systems

Measuring & Monitoring Relays

Axial Fans

Power Supply Topic: Causes and Solutions of Output Indicator Turns ON and OFF

FAQ No. FAQ02033

Question

The output indicator turns ON, but then turns OFF immediately. What is the cause of the problem and solution (in models equipped with the overvoltage protection function)?

Answer

 

Likely cause	Solutions
The remote sensing terminals are open. (Indicates that the remote sensing function is being used.)	When not using remote sensing, short-circuit terminals +V and +S, and also terminals -V and -S. The overvoltage protection function will operate, so turn OFF the input power and then turn it back ON again.
The internal control circuit has malfunctioned, thereby activating the overvoltage protection function.	Turn OFF the input power and then turn it back ON again. If the problem reoccurs, the internal circuits are possibly damaged. Consult your OMRON representative.

Other Power Supply FAQs

 What happens when the Power Supply reaches its life expectancy?

 What is life expectancy?

 What is the best way to estimate the amount of heat produced by the Power Supply?