[scrap maker]

The Z axis on our lathe works on jogging and feeding. However, the manual wheel does not work. How does one test an encoder? I looked at the encoder and see that the cable is integrated with the encoder for I was hoping that there is a break in the cable itself, which is still possible. Thanks.

[scrap maker]

The electrician went to fish out the cable for the encoder and found a connector for it that had managed to unscrew itself and come apart. The connector for the X axis was about to come apart too. So, problem solved.

[Jade York]

If the lathe jogs and feeds, it probably isn't an issue with the encoder or motor. I have seen in the Fanuc Beta Series a similar issue with the manual wheel where the drive's control board was faulty and gave us the same problem. If you can give me more information on the make and model number of the motor and encoder, I may be able to give you further information on your issue. You can contact me through