So I am setting up my used 2005 PRT Alpha with 3HP Columbo spindle and everything works great, except I cant get the spindle to turn on. It's connected to a Delta VFD-B. The VFD turns on and does not prompt any errors and the spindle's fan turns on. Also the PC router on the second Z axis starts up no problem. Maybe some setting is incorrect in the VFD? Tbh I don't know where to start.