NX100 1105 Alarm (200*)

We have an NX100 that has a trunnion positioner giving us a 1105 System Error (Servo) [2007]. We cycled power and tried reseating the axis control card though the alarm still occurred, but only when turning in 1 direction at full speed. We reduced the speed of the trunnion in that direction and this stopped the alarm form occurring for now.

Any ideas on what could be causing this and why it was only occurring in 1 direction and at max speed?

The system had been functioning for around 2 years, it just started happening one morning. There were PM's over the weekend replacing fans but that was the only changepoint.

We ended up swapping out the servo amplifier and that corrected the issues. Would still be interested if there was any insight on root cause, but we are back running.

My only thought that the servo amp was on its way out, and turning in that direction required slightly more force than the other so it started on that side.