VMC (Kia KV25), Fanuc 0M
Machine was working normally.
Suddenly, it started to give next alarms (in different combinations):
426 SERVO ALARM: Y AXIS DISCONECT
401 SERVO ALARM: (VRDY OFF)
421 SERVO ALARM: Y AXIS EXCESS ERROR
It happened while moving Y or X axis. Not every time.
Now, I can not move Y axis.
When I try to, I hear buzzing from motor (load?), it moves for few milimeters and than it crashes and gives:
424 SERVO ALARM: Y AXIS DETECT ERROR
From diagnostic 721 it says OVC (over current alarm).