Originally Posted by
Chris D
As there is no isolation, it appears as though there is some sort of ground-loop problem causing a vibration on the motor(s) while at rest. This should be easy to resolve when I get a chance.
Chris
Hi Chris
Mariss solved the problem of the noisy motors at idle and as you say it is a ground loop problem caused by the lack of optoisolation. The solution was to put a 100 Ohm resistor in series with the DB-25 ground to G251 terminal 12. I did this for each drive and everything went silent. I have ordered a CNC4PC breakout box and will install it once it arrives but in the mean time things are working spot on.
Cheers
Peter
The ingenuity of idiots is unlimited.
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