I have to take three steps to the old fashioned switch on the wall, twice per session...I used a 120 volt DPST relay. Turning on the relay connects up both legs of the 220 and turning off the relay
disconnects both legs of the 220 line. The relay is housed in a metal box which also contains the VFD and
a cooling fan. The box is mounted on a pedestal on the ceiling right next to the mill.