Hi, Just joined up today & I have posted this twice already in the wrong place SORRY....
This hopefully is the correct one, here goes, my son owns a Colchester Colt lathe with Anilam Crusader II control.
He wants to control it with two G320 which I purchased & here is the rub..

Tested first G320 tuned in fine (Bench test SEM MT30 servo with AMT102)
same motor on the "X" Axis.
Second drive G320 tuned in reasonably good but, tried to tune in better and
found that the Gain & Damp when moved to upper & lower limits (lightly)nothing changed ? It was getting step/ dir & ran fine.

Am I doing something wrong or is the G320 drive faulty?

Help !!!!