Control is Fanuc O-MD on a Yang SMV1000.
At power on the control gives an alarm:
434 servo alarm: Z AXIS DETECT ERROR
When looking at the Z axis servo amp in the electrical cabinet, the digital status display is giving alarm code #2.
We don't have any manuals for this side of the machine, only for the control.
Alarm 343 says refer to DIAGNOS No. 720/727
Any ideas?