Finally getting time to do some turning, and I did a little cleaning up on the PM. I opened the VFD box and vacuumed out old chips and may have bumped the keypad on the VFD. I was able to turn one bowl and now the digital RPM display lights up but the motor doesn't turn. I don't have the manul and don't know what parameters the VFD keypad should display. Any suggestions?? The VFD is a Delta VFD B