Error description 237-13006

Error message

13006 UM: Communication error in FO connection CC%2 %1 (info = %4)

Cause of error

- UM inverter or UEC compact inverter reports errors in communication via an optical fiber (HFL, HEIDENHAIN Fiber Link) with the controller unit
- Info provides information about the exact cause of the error for the diagnosis

Error correction

- Check the optical fiber connections (HFL):
- Is the green LED on?
- Is the optical fiber plug fully engaged?
- Is the tip of the optical fiber clean?
- Ensure the proper bend radius
- Exchange the optical fiber
- Check the machine for correct shield connections and grounding
- Check the motor and power cables for correct shield connections and terminal connections