A friend of mine just picked up a 1985 lb10 w/ osp5000 . the Z axis will not move and we dont know if this is a new problem.
to complicate the problems we cant find all of the manuals.

the Z axis errors out with a 201-4 alarm-A servo amp.

the pson led's are lit on both servo drives but the z axis has the sat led on. the Z axis will not move at all.

does anyone have any info on these errors, we really need to know what the sat led means.

The servo drives are bdu-30A, at least that is what the x axis is. The z axis does not have its cover.

thanks

Matt