26033
Ground fault, KPP/KSP (axis)
Kuka · KR C4 Operating Instructions
What does 26033 mean?
An overcurrent condition has occurred in the power unit, specifically indicating a ground fault. This suggests an insulation breakdown or a short circuit to ground within the motor or its associated cabling, posing a safety risk.
Repair Steps
- 1
Check the motor cable for physical damage, shorts to ground, or insulation breakdown using an insulation tester (megger).
- 2
Check the motor for internal ground faults or winding damage by measuring winding resistance and insulation resistance.
- 3
Reinitialize the drive bus by performing a Power Off / Power On cycle of the entire system.
- 4
Check the KSP module for diagnostic indicators related to power unit status.
- 5
Check the KPP module for diagnostic indicators related to power unit status.
Verified technical data. Last updated: March 2026
Source: Kuka KR C4 Operating Instructions