Recently a servo motor was replaced on the machine, for the z-axis.

The driver is throwing a fault error.
https://cadcamcadcam.com/servo.aspx

The servo is a new Hansen with a provided pigtail for the optical encoder. The exact product is not listed on their site.

Unfortunatly, the supplier has no wiring diagram.

We've followed their trouble shooting instructions:
- ensure power is connected properly.
- We've double checked the correct pigtail is in use on the encoder.
- verrify connection cable
- verify female jack on controller
- modified the pots per original documentation

Everything checks out, but as soon as we move the z-axis, the servo moves one tick then the encoder indicates a fault.

Any suggestions would be helpful.