Could you tell me how you wired your VFD to get on/off and spindle control with mach3. Is there special settings in Mach 3 to get these two fuctions to work? I currently have my spindle setup with a manual on/off switch and a pot switch for adjusting RPM. But i can't seem to figure out how to wire it and set it up to control these with mach 3. Any help would be appreciated.