Hi All,
I’m in the first stages of getting the spindle working, but it will not spin when asked to even though I can hear it gearing up (spinning inside the spindle). It only starts to rotate if I give it a push. I have gone through all of the trouble shooting suggestions I could find…loaded and reloaded the SLB-EXT configuration code…turned on and off the machine in the sequence described multiple times. Checked the voltage at the receptacle at 237.6V. Any help would be greatly appreciated.
Sounds like one of the three phases is missing. You indicate you checked the voltage at the receptacle - is that the 240 volt supply receptacle? If so, that sounds good. Have you checked the voltage at the connector on the spindle? Should be voltage between A & B, B & C, C & A. If one is missing the motor probably will not start. At least that is my understanding of a three phase motor.
Make sure you are using shielded cable. The lack of a good earth on the shield cable can make it sound like its spinning when its not. Its quite bizarre.