Ok ,once again I need help with the z axis tripping the servo disconnect when using rapid moves. I had this problem once before, the servo drive board was replaced and the problem was solved. When it started this time, I thought I could just replace the board again. NOPE. Bought a couple boards off e-bay, changed the board, problem remains. Changed the transformer under the drive board. problem remains
I verified the problem is just on the z axis, by switching the y axis wires to the z axis board. Servo disconnect trips when a rapid move is made. It does fine with a feed move or jog moves.

The machine is an Anilam crusader M (1989) on a Supermax mill 3 axis.

I could program feed moves instead of rapids, for now. but a lot of the canned drill cycles use rapid moves in z.

Any Idea what to look at ?
Thanks
Van