Device temperature too high, KPP/KSP (axis) Overtemperature

What does 26111 mean?

Overtemperature detected in the KPP/KSP device or related axis components of the KUKA KR C4/KR C4 CK controller. This indicates elevated operational temperature within the drive or its environment, which can lead to thermal shutdown or reduced component lifespan.

• High ambient temperature around the KR C4/KR C4 CK cabinet.
• Excessive load in the robot program leading to sustained high power consumption.
• Accumulation of dirt or dust in the cooling circuit, impeding airflow.
• Malfunction of the cabinet cooling fan.
• Malfunction of the PC fan within the controller.
• Internal issue within the KSP (KUKA Servo Pack) module.
• Internal issue within the KPP (KUKA Power Pack) module.

Click steps to track your progress.

1. 1

   Verify the cabinet cooling fan is operational, free from obstructions, and providing adequate airflow.

2. 2

   Measure and ensure the ambient temperature around the KR C4/KR C4 CK controller cabinet is within the manufacturer's specified operating limits.

3. 3

   Evaluate the robot program for excessive load or duty cycle and reduce if possible.

4. 4

   Inspect the cooling circuit (e.g., heatsinks, air filters) for dirt, dust, or blockages and clean thoroughly.

5. 5

   Check the PC fan within the controller for proper operation.

6. 6

   Perform a power cycle (Power Off / Power On) of the KR C4/KR C4 CK controller to reinitialize the drive bus.