we have a bolting robot KR150L110-2 2000 with a C2 controller.
The robot is operating for many years now with no problems and only needed some retouching sometimes. This week I got this alarm on more than one occasions. Always on Axis 6 and always in the same move, a lot articulated and fast actually. Once aknowledged the robot continues well and repeat the same move with no issue for maybe 3-4 times and then stops again.
I have little experience with robots and don't remind anything that covered this in the training I attended i.e. Programming 1.
Someone of you could shed some light, please?