KPS Intermediate Circuit Undervoltage During Charging

Was bedeutet Undervoltage PMx during charging ?

The intermediate circuit of the KPS module (PMx) did not reach the 500 V threshold during charging, indicating an undervoltage condition. This is typically caused by a mains voltage that is too low.

• KPS intermediate circuit voltage is too low during charging, below P0-52.
• Charging circuit failure in the KPS unit.
• External power source providing insufficient voltage for charging.

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1. 1

   Measure the incoming mains voltage at the KPS input terminals. If it is too low, identify the cause and rectify the mains supply issue.