Kuka · KR C4 Controller
This fault indicates a power unit overcurrent due to a ground fault in the motor or motor cable connected to a KPP/KSP drive. A ground fault poses a significant safety risk and can cause severe damage to electrical components.
Click steps to track your progress.
Inspect the motor cable for insulation breakdown or damage that could cause a ground fault.
Check the motor for internal ground faults by measuring insulation resistance.
Reinitialize the drive bus by cycling Power Off / Power On.
Check the KSP module for any status indicators.
Check the KPP module for any status indicators.