Well things are working a lot better now... I think it had a lot to do with the encoder setting, but I did switch the Analog out 5. I truthfully don't know exactly. This factory system has an encoder on the spindle motor and a second encoder on the chuck after the gear box (so I thought) . Both go back to the drive and the drive has a differential output. Using the HAL meter I could see the encoder.velocity.0 was much different than actual chuck rpm by using a tachometer. I adjusted the encoder settings to get the rpm I was seeing and that has gotten things closer. Really the only thing that changed was analog 5 and more sleep as compared to last night. Thanks for your help!
What would be some starting values for PID for a 7.5kw servo spindle drive? I put in 10.0 for P (and nothing else for I and D) and the spindle started to run away. Any ideas?
