Fanuc 21-tb alarms

[Hlynur]

It is a Harrisson Alpha 550
Year 1996
Serial no .A50085
600 Lathe number A50085/027

We can see alarms
506 +x owertrawel
507 -z owertrawel
507 +z owertrawel
Every time we look at alarm history
at every start
On the display
Even if we clear the history list.

And the lathe will not start.

Hello I get alarm red led number 2 on the cnc moudule
Can anyone tell me the meanig of this.

[tobyaxis]

Please post the Machine Tool Manufacturer and year so someone can better assist you.

There are a lot of very bright people here that can help.

Welcome to The Zone

[Al_The_Man]

pdf.
Al.

[electromecanik]

Hello All, I have a Tsugami FMA3 with Fanuc Control milling machine with a little problem, last time I turned it ON the Y axis servo drive had an ALARM 2 code (Low control power voltage alarm LV). I took the driver out and everything looks just fine but the ALARM doesnt get away. I tried changing the command cable to the X axis but the ALARM remains in the same driver. Does anyone knows if there is a way to fix this problem?

[mlbieker]

I have the same problem on a Mori Seiki Frontier L. Was a solution ever found?

[yours_prabhat]

The SRAM data of the machine is gone relaod The parameters than u can get the original screen

[underthetire]

Originally Posted by mlbieker I have the same problem on a Mori Seiki Frontier L. Was a solution ever found?

What problem. there are more than one listed here. Frontier L what BTW. A L2 I would assume, witch is a SL25, just newer control. The L1 was a small machine like a AL2

[supato]

FANUC 21-TB ALARM 1020 MOTOR OVERLOAD
THE DRIVE UNIT IS NOT ALARM(--,0)