Error description 237-1807D

Error message

1807D CC%2: physical disturbance of data reception %1, error code=%4

Cause of error

The communication component for the optical fiber connection (HFL) to the inverters reports an error.
Possible causes:
- Hardware defective
- Electromagnetic disturbances
- Optical fibers (HFL) not connected correctly
- Insufficient bend radius of the optical fibers

Error correction

- Use TNCdiag to check the damping of the optical fiber connections (HFL);
if the damping is too high:
- Check the optical fiber connections
- Comply with the guidelines in the Technical Manual regarding the cable routing
- If necessary, exchange the hardware
- Create a service file (error code gives information about the exact cause of the error for the diagnosis at HEIDENHAIN)
- Inform your service agency
- Check the machine for correct shield connections and grounding
- Check the motor and power cables for correct shield connections and terminal connections