Quote Originally Posted by DingbatCA View Post
Yep, 240V. I have a 50A circuit normally used for charging the EV.

My 120V VFD is/was connected to a 20A circuit.

Yes, the 2.5A was on the VFD drive keypad screen. What's the math to get 7.5A? 2.5A per phase, 3 phases to the spindle?
The VFD Drive only displays (1) of the phases, so it is normally quite simple x 3=7.5A which would be the max for that spindle, there could be some Parameters that could help depending on the VFD Drive, when they reach there max the VFD will be at its max also unless it is over sized for the spindle, so a stall is going to happen, just back the feed off until it does not stall or take a smaller depth of cut, (2) options