What causes KUKA Robot alarm KRC0025?

Continuous high-speed axis movement without adequate rest periods causing excessive friction heat. Brake cooling fan malfunction or blocked ventilation paths around the brake assembly. Ambient temperature in the robot cell exceeding designed operating range of 5-45 degrees Celsius. Worn brake pads generating excessive heat due to increased friction and reduced braking efficiency. Brake spring preload set too high causing continuous engagement friction even during motion phases.

How do I fix KUKA Robot alarm KRC0025?

1. Stop all robot operations immediately and allow the affected axis brake to cool passively without forced air circulation 2. Check the environmental conditions around the robot and verify ambient temperature is within KUKA specifications of 5-45 degrees Celsius 3. Inspect the brake cooling fan for debris blockage and ensure all ventilation slots around the brake housing are unobstructed 4. Review the recent application program to identify if continuous high-speed axis operations occurred without cooldown cycles 5. Examine the brake pads for wear using WorkVisual diagnostics and compare against KUKA maintenance specifications for replacement threshold 6. If brake overheating recurs frequently, contact KUKA service to verify brake spring preload adjustment and perform thermal stress testing

KUKA Robot codes

axismd.ai

KUKA Robot Controller

Servo/Axis · Intermediate

Alarm KRC0025

KUKA Robot KRC0025 - Brake Cooldown Time

The brake assembly on the specified axis has exceeded its thermal operating limit, triggering an automatic safety shutdown. The robot cannot execute any motion commands until the brake has cooled to a safe operating temperature, typically requiring 15-30 minutes of passive cooling.

KUKA RobotServo/AxisIntermediate

KRC0025

KUKA Robot KRC0025 - Brake Cooldown Time

Brake Cooldown Time

Common Causes

Continuous high-speed axis movement without adequate rest periods causing excessive friction heat
Brake cooling fan malfunction or blocked ventilation paths around the brake assembly
Ambient temperature in the robot cell exceeding designed operating range of 5-45 degrees Celsius
Worn brake pads generating excessive heat due to increased friction and reduced braking efficiency
Brake spring preload set too high causing continuous engagement friction even during motion phases

Troubleshooting Steps

1Stop all robot operations immediately and allow the affected axis brake to cool passively without forced air circulation
2Check the environmental conditions around the robot and verify ambient temperature is within KUKA specifications of 5-45 degrees Celsius
3Inspect the brake cooling fan for debris blockage and ensure all ventilation slots around the brake housing are unobstructed
4Review the recent application program to identify if continuous high-speed axis operations occurred without cooldown cycles
5Examine the brake pads for wear using WorkVisual diagnostics and compare against KUKA maintenance specifications for replacement threshold
6If brake overheating recurs frequently, contact KUKA service to verify brake spring preload adjustment and perform thermal stress testing

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