26050
Fault in brake resistor, KPP/KSP (axis)
Kuka · KR C4 Operating Instructions
What does 26050 mean?
The KPP has detected an error within the ballast circuit, which includes the brake resistor. This indicates a problem with the energy dissipation system responsible for braking the motor, potentially leading to uncontrolled deceleration.
Repair Steps
- 1
Check the ballast resistor for physical damage, an open circuit, or an incorrect resistance value using a multimeter.
- 2
Check the cabling between the KPP and the ballast resistor for continuity, short circuits, and proper connections.
- 3
Reinitialize the drive bus by performing a Power Off / Power On cycle of the entire system.
- 4
Check the KPP module itself for internal faults if the ballast circuit components are verified correct.
Verified technical data. Last updated: March 2026
Source: Kuka KR C4 Operating Instructions