Originally Posted by
mactec54
What was the error, this is important, that sounds like you don't have it wired correctly, or you have a wiring shorting in the plug.
The correct wiring is with a 4-wire Shielded Cable from the VFD Drive to the Spindle
U / Pin1
V / Pin2
W / Pin3
Ground / Earth to Pin 4
Shield Termination is by clamping in the Plug Restraint, and a Clamp to the Ground Plane at the VFD Drive end.
For testing the spindle Plug Pins
With no Power connected
Spindle Plug ohm measurement.
Pin1 to Pin2=
Pin2 to Pin3=
Pin3 to Pin1=
Pin4 should have continuity to the Spindle Body if not this will have to be corrected, as some are not connected inside.