Quote Originally Posted by MikeD51 View Post
The spindle motor also has a red cap, so I assume a VFD will not work.

Mike
It depends on the exact red cap spindle motor. Look at the data tag, if it does not say 'Exite Perm Magnet' and 'AC Servo Motor' then it is most likely a standard(ish) 3 phase induction motor, and can be run with a VFD