What VFD are you using? All of the controls on my unit, start, stop, emergency stop, forward, and reverse work just as they normally do. They just control
low voltage inputs to the VFD that in turn does all of the power switching. One thing that is very important, NEVER put a switch between
the VFD and the motor, you will end up having to buy a new VFD if you do. I have a power switch on the 220 single phase input to the VFD as
a way t0 shut the unit off when its not in use. Speed control on my unit is controlled by a little potentiometer knob on the VFD itself, but
it could be controlled by a remote potentiometer on the lathe itself, again using low voltage wiring going to the VFD. I was initially taken aback
by the manual but after a few sticky note book marks, I finally figured it out and have never looked back.
Chuck the grumpy old guy