Originally Posted by
emexcee380
Hey guys,
Our Mori ZL15SM w / Fanuc 0TTB came up with "AL11" on the main spindle amp today. The alarm comes up as soon as the control is powered on.
The Fanuc manual says only that it is "OVERVOLTAGE OF THE DC LINK" with very little diagnostics.
I pulled the amp and checked all 4 transistor modules in the base. (They're okay.)
Is replacement of the pcb the next indicated repair?
Please advise. (Al the Man? Underthetire? You guys know anything about this alarm? I've seen plenty of AL-12's, but never AL-11.)
Please advise.
emexcee380