Cause : shutoff valve control/feedback signal error comes when the drive-integrated "Safety Integrated" function on the Control Unit (monitoring channel 1) has detected a fault for the control/feedback signal of the shutoff valve and initiated a STOP A.

Possible causes:

- shutoff valve either not connected or not correctly connected (X272).
- feedback signal of the shutoff valve either not connected or not correctly connected (X281/X282).
- feedback signal of the shutoff valve incorrectly set (p9626/p9826).
- shutoff valve defective.
- Hydraulic Module defective.

- check the shutoff valve connection (X272).
- check the feedback signals of the shutoff valve (X281, X282).
- check the configuration of the feedback signals of the shutoff valve (p9626/p9826).
- Check for EMC-compliant control cabinet design and cable routing (e.g. use shielded cables and connect the shield).
- if necessary, replace the shutoff valve.
- if necessary, replace the Hydraulic Module.