KPS Intermediate Circuit Overvoltage During Operation

What does Overvoltage PMx mean?

An overvoltage condition has been detected in the intermediate circuit of the KPS module (PMx) during operation. This can be caused by excessively high mains voltage or a defective ballast switch not dissipating regenerative energy.

• Intermediate circuit voltage exceeds the safe limit during operation.
• Regenerative braking feedback too high without sufficient load.
• Power supply fluctuations.
• Faulty capacitor bank in the intermediate circuit.
• Overvoltage protection device failure.

Click steps to track your progress.

1. 1

   Measure the incoming mains voltage at the KPS input terminals. If it exceeds specifications, identify and rectify the source of the high voltage.

2. 2

   If the mains voltage is within specifications, the ballast switch inside the KPS module may be defective; exchange the KPS module.