26103
Internal error, KPP/KSP (axis)
Kuka · KR C4 Operating Instructions
What does 26103 mean?
The KPP/KSP device has detected an internal error. This indicates a problem within the device's internal electronics or firmware that cannot be resolved externally without component replacement.
Common Causes
- An unrecoverable internal error has occurred within the KPP/KSP control unit.
- Firmware corruption or malfunction.
- Internal memory error.
- Logic fault in the KPP/KSP processor.
- Watchdog timer reset due to system freeze.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Reinitialize the drive bus by performing a Power Off / Power On cycle of the entire system.
- 2
Check the KPP module's LEDs for further diagnostic information or specific internal fault indicators.
Verified technical data. Last updated: March 2026
Related Faults
Source: Kuka KR C4 Operating Instructions