Quote Originally Posted by charlieuk View Post
New spindle and vfd arrived from cnc4u and I have replaced them wire for wire. Are there any tests I can do to make sure all is ok before I do any damage?
If you have metered across the phase wires in pairs and all 3 sets of windings read similarly and you've metered the resistance to earth too and that reads open circuit then your motor is fine and you shouldn't be able to damage a VFD with it.

- Nick