The mutual moving head of the RDC6612U vision controller is not working,how can I solve this issue?

When I use the RDC6612U vision controller for processing, the equipment appears to be functioning normally: the camera can take photos and perform recognition, and the system can accurately complete visual positioning. However, after switching to the mutual head mode, the mutual head never moves. I initially suspected a mechanical failure, but upon inspection of the motor, drive, and wiring, no abnormalities were found. Who can give me some advice? Thanks in advance.