Ethercat GA500 or V1000 on an RPKM
If you run across one of these and don't know how to set it up, this worked for me.
Make sure that Modbus control is disabled on V1000_0 in the MM plugin!
Set the up the VFD as shown here, Use RPM instead of percentage
New screen
Set VFD parameters here, not in the machmotion plugin
Spindle Calibration
All the instructions for spindle calibration can be found in VFD - Spindle Calibration
Check out the VFD section of the 2000 Series RapidPath Operating Manual. I found it quite helpful.
https://support.machmotion.com/link/1231#bkmrk-vfd