26047
Power supply failure, KPP/KSP (axis)
Kuka · KR C4 Controller
What does 26047 mean?
This fault indicates that the supply voltage to the KPP/KSP drive has dropped below 300 V. Insufficient supply voltage can lead to unstable drive operation, undervoltage faults, and system shutdowns.
Common Causes
- Supply voltage dropping below 300 V
- Issues with the power lead supplying the KPP
- Incorrect or damaged KPP cabling for power supply
Repair Steps & Checklist
Click steps to track your progress.
- 1
Inspect the main power lead for continuity and proper connection.
- 2
Check the KPP cabling connecting to the power supply for damage or loose connections.
- 3
Reinitialize the drive bus by cycling Power Off / Power On.
- 4
Check the KPP module for any status indicators.
Verified technical data. Last updated: March 2026
Related Faults
Source: Kuka KR C4 Controller