I'm no expert ! but I altered the connections on a friends lathe motor from star to delta and fitted Huanyang 2.2 KW inverter which cost £90.40 via ebay, it was here in 4 days obviously not direct from PRC but some where here in UK. I have kept a copy of the programming should you or anyone else like a copy.I also I altered the lathe coolant pump so that it runs independently from a 240 volt supply, by reconnecting the motor to delta and then fitted, I think a 4 micro farad capacitor ex fluorescent lighting one. John