Originally Posted by
mactec54
The unit does not tell us what you have the VFD Drive can have a 110v /120v input rating and a 220v 3 phase output, the spindle on these can be 220v what do you have 220v spindle or 110v spindle, tell where and who would buy something that is 110v 3 phase in NA if you have this spindle they are junk, only the Chinese make such a motor for the people in the NA to buy, they will make anything if they think they can sell it
If your motor is rated 1.5Kw @ 110v the VFD would have to supply 13.6 A to be 1.5Kw , with stall at 9 Amps gives you only at 990 watts, the 110V / 120V supply would see 15.5 A draw at the 9 A motor stall
Motor current x 1.73 is what to expect at the input power supply to the VFD with any type of install
This also could be how you have set up the VFD Parameters, with Parameters set correct the Spindle should go the max setting in the VFD
Anyone that buys these none standard 110v 3Phase spindles can't really expect anything else, than a dismal performance
Don't even dream that you could run a 3Kw spindle on your 110 /120v VFD, it would be an even worse outcome than what you already have, you would need 47 amps at 110v