Re: Yaskawa UAASKA-06CA1 and Durapulse GS3 VFD
I would use Sensorless Vector mode, gives you constant torque at low speed. Setting the base frequency at 50Hz is fine, set the voltage for 200V, set the amps per the motor nameplate. At 50 Hz I would expect a 4 pole motor to run at ~1500 RPM, and at 60 Hz at ~1800 RPM.
Once you have set the the above parameters, then run the Auto Tune. Don't worry about the volts and amps going to the motor, the VFD will take care of that. You will notice that the amp draw on the motor will go up as the speed is reduced, this is normal below the base frequency. At about 600 RPM mine would run at about 70% load when idling, then drop down as the speed was increased.
I had a similar setup on my lathe with a GS3 drive and a very similar Fanuc spindle motor (1500/6000, 200V). Worked just fine for a few years until I installed the servo spindle motor which is running parts as I type this. I have a similar setup on my mill and it has been running fine for years.
Jim Dawson
Sandy, Oregon, USA