Recently, we experienced the y-axis moving correctly in one direction, but not the correct distance in the other direction. This difference was significant (about half the distance). We tracked the problem back to the CW8060 electronic driver unit. Simply replaced the driver unit and everything has work great since. A month later, experienced the same issue with the z-axis. Again, by process of elimination, we replaced the CW8060 and the problem immediately went away.
It seems very odd that we would have two problems with axis moving correctly in one direction and not the other direction -- and to track the problem to the cw8060 driver units. These drivers have been working great for a long time.
Has anyone experience this problem before with cw8060 drivers? Is there a reason why cw8060 drivers suddenly work in one direction, but not in the other direction?
Thanks for your help.
Mike