Hi, I have been facing a issue.
Issue: The situation is, when I turn off the power in my electrical panel, to do some welding work. But when I turn the power back ON, many of the PLC power cards go into fault and many PLC Card or the CPU goes into fault. Now just turning OFF and then turning the power ON, is causing faulty cards and PLC.
Can you please help me find the root cause of the issue, what are possible reasons to correct this?