Error message

8B50 Axis module %.2s not ready

Cause of error

- Safety relay not on (e.g. connectors X71 and X72 of the UV, X73 of the HEIDENHAIN expansion board for Simodrive)
- PWM bus cable interrupted
- PWM interface on the control defective
- Defective axis module
- No pulse release for the power module

Error correction

- Inform your service agency
- Exchange the power module
- Exchange the HEIDENHAIN expansion board for Simodrive
- Exchange the PWM bus cable