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Lead Contents

Causes and Solutions of Output Indicator Turns ON and OFF

FAQ No. FAQ02033

Primary Contents

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 causeSolution
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.