Charmille roboform 20A sinker cannot clear xy and z overtravel limit

[Stbeeney]

1997 machine - hoping it isn't toast - was getting good work out of it until this. Anyone have any suggestions?
Tried reloading the operating system but didn't solve the problem.

 

[Laurentian]

Location ?

 

[SteveEx30]

Never had a Chamilles but once had a machine I couldn't clear an overtravel alarm, ended up being a 24v wire was pinched and grounded out. Check all the voltages at the PS