On my mill, I have 220v single phase coming in, going through a VFD,
then a FWD-OFF-REV switch, and into the motor.

I do not use the reversing switch to turn or reverse the motor. I use
the VFD for it.

What I do use the motor is to make the motor go in the right direction
when switching in and out of backgear. If I switch to a slow speed via
backgear, then all things being kept the same, the spind would turn
backwards when I turn VFD into FWD. That's stupid. So, I maDE A RULE
for myself, whenever I switch the mill to/from the backgear, I flip
the FWD/REV switch on the mill to keep FWD rotation the same. Works
for me.

I use the VFD for plug reversing.

i