I am trying to figure out the best way to retrofit my CHNC lathe and am stuck on how to drive the spindle. I would like to keep the original spindle motor as it was just rebuilt. It is a DC PM servo motor, specs are:

Model: 193-18-0025-0
Frame: NR00166
Encl: T.E.N.V.
Duty: Cont.
Ins.Cl. H
Torque 242
RPM 0
JA-LB.IN.SEC.2(squared) .295
Max RPM 3500
Max Volts 118
Max.Arm.Pulse Amp. 1094
Tach. 31.5 Volts/1000 RPM
Spec. IFC 34-1 (1969)
Data Sheet K-8722
BR. Volt. 90 D.C.

The exisiting AB control uses a GE PWM to drive the spindle. I want to update this with either another PWM or else a servo drive.

The existing drive ouputs 90V at 85A to the spindle motor.

If anyone can direct me where to look for a compatible drive that will work with Mach3, I would be very appreciative...

Thanks,
-Ryan