I finally have my retrofit running well and have been slowly tuning my drives and motors (M3 software) to the point where I think I have a good tune however there is some stationary noise that is audible that is a little baffling to me. When the drives are not faulted and just sitting in place I get a pop/crackling noise that I have tried to mess with the drive tunes to get rid of with some success however I can't seem to get rid of it entirely. I have never been able to get a O-scope hooked up to these drives with success so all of my tuning has been done by ear. It seems when I mess with the "P" tuning I can adjust the amount of noise but then I will loose my in position signal or get oscillation. The noise is fairly minimal but I am wanting it gone all together and not sure where I should be looking. Outside of this the machine works great and doesn't fault out anywhere with great results in the actual machining.

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