PLC issues

2017-01-09 View Original

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The motor bearings of the pump froze due to the cold weather; why does starting it cause the PLC’s CPU to stop working?

Reply #2 2017-01-11

It will only stop when an error occurs inside the PLC

Reply #3 2017-01-11

This shouldn’t happen; check the program – it’s either the program or the hardware that can cause the PLC to stop working

Reply #4 2017-01-12

Is the same power supply being used? Could it be that the motor shaft has frozen, causing an overcurrent?

Reply #5 2017-01-13

It has nothing to do with your motor getting stuck; it’s either an error in the PLC’s internal program or a hardware issue. I suspect that OB122 is missing from the program

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PLC issues

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