Switched to a 220V set-up (both spindle and VFD). Controller is the Sienci Labs Longboard and CNC is the Longmill MK2 48x30. Would like a sanity check on the correct frequency lower limit for the 2.2kW 10A ER20 D80-110v-220v-380v 80-230mm water-cooled-spindle-motor. I haven’t found accurate G-Penny spindle specs online.