Kuka · KR C4 extended
An overvoltage condition occurred during the charging phase of the KPP or KSP module for a specific axis. This could be due to excessive mains voltage or an insufficient number of connected capacitance modules.
Click steps to track your progress.
Measure mains voltage and verify it is within specified limits.
Verify the correct number of capacitor modules are connected.
Reinitialize the drive bus: Power Off / Power On.
Check the KPP module.
Check the KSP module, though this is considered improbable as a primary cause.