[smolly]

Machine: Matra-Fanuc Tape Cut-Model Q. Control: Fanuc system 6M, Model B, Series ME

First the Alarm 704 occurred that I dealt with for around a year. From time to time machine was in function.
Then certain system alarms occurred.
I cleared and initialized the bubble memory and input the parameters again.
System alarms disappeared but new ones came: 402, 414, 424, 434, 454 and 704.
Reset button removes all but 402 and 704.

PRDY on velocity control units are off.

My it be parameters issue?


Any help would be much appreciated.

[cncmakers001]

Machine: Matra-Fanuc Tape Cut-Model Q. Control: Fanuc system 6M, Model B, Series ME

First the Alarm 704 occurred that I dealt with for around a year. From time to time machine was in function.
Then certain system alarms occurred.
I cleared and initialized the bubble memory and input the parameters again.
System alarms disappeared but new ones came: 402, 414, 424, 434, 454 and 704.
Reset button removes all but 402 and 704.

PRDY on velocity control units are off.

My it be parameters issue?


Any help would be much appreciated.

If alarm 704 was a recurring problem before the memory reset,
and it’s still present afterward, there might also be an intermittent hardware issue
But still, the root issue now is likely software/configuration,
since the spindle and servo drives aren’t even reaching the ready state.

[smolly]

Many thanks for your replay.

It looks like software issue for me, too, because servo alarms: 402, 414, 424, 434 and 454 occurred when I reset the bubble memory. But, I had original parameters at the machine and double checked if I had input them correctly and found no errors.

I guess I first have to resolve servo alarms to get machine to the only 704 alarm status, like it was before I reset the memory.

Any suggestion what to do next may be helpful.

[smolly]

One more info.

MCC contactor at velocity control unit does not turn on at all. I don't hear it any moment.

Any idea what I have could done wrong?