Kuka · KR C4 Operating Instructions
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.
Click steps to track your progress.
Check the ballast resistor for physical damage, an open circuit, or an incorrect resistance value using a multimeter.
Check the cabling between the KPP and the ballast resistor for continuity, short circuits, and proper connections.
Reinitialize the drive bus by performing a Power Off / Power On cycle of the entire system.
Check the KPP module itself for internal faults if the ballast circuit components are verified correct.