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KUKA Robot Controller
Servo/Axis · Basic
KUKA Robot KRC0202 - ERROR ON READING, DRIVER: ** **
This alarm indicates a communication or data reading error occurring on a specific axis driver within the KUKA KRC control system. The error occurs when the controller fails to properly read feedback or status information from the axis driver, preventing correct motor control and feedback validation. This typically results in loss of axis control and requires immediate intervention to restore normal operation.
KRC0202
KUKA Robot KRC0202 - ERROR ON READING, DRIVER: ** **
ERROR ON READING, DRIVER: ** **
This alarm indicates a communication or data reading error occurring on a specific axis driver within the KUKA KRC control system. The error occurs when the controller fails to properly read feedback or status information from the axis driver, preventing correct motor control and feedback validation. This typically results in loss of axis control and requires immediate intervention to restore normal operation.
Common Causes
- Faulty or degraded encoder/feedback sensor on the affected axis
- Loose or damaged communication cable between controller and axis driver
- Defective axis driver card or control module
- Corrupted driver firmware or communication protocol mismatch
- Electrical noise or interference affecting serial communication lines
Troubleshooting Steps
- 1Identify the specific axis driver by checking the complete alarm message and cross-referencing with the axis configuration in the system parameters
- 2Power cycle the KRC controller using the main disconnect switch, wait 30 seconds, and restart the system to reset communication
- 3Inspect all connector cables between the KRC control cabinet and the identified axis driver for loose connections, bent pins, or visible damage
- 4Verify encoder functionality by manually moving the axis and observing feedback values in the diagnostic menu or service interface
- 5Access the driver diagnostics through the KRC teach pendant to check driver status codes and communication error counters
- 6If errors persist, replace the suspected axis driver card or contact KUKA service for advanced diagnostics and component replacement
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