This might be a long shot, but i will try anyway.
I have a Robot, with the 7th axis mounted on the tool.
The 7th axis is mastered to be 0, and should go to 0 everytime the robot is reset.
Suddenly the feedback from the encoder return f.x 11mm, even though its physical is in 0.
This ofcouse gives me a following error, and somethimes a overcurrent fault. which make sense, because i can move to 0, if its allready there.
my solution so far, is to unmaster the external axis, and then remaster in the right position, and then it works perfekt again.
Are the maybe anyone, that have experienced the same, or maybe have some sort of solution ?
we have checked the tension of the belt, and also the condition of it, and its all fine.