Fanuc 16 with 912 ram parity..

[ajm100a]

I had a 910 come up first while running. After removing the main cpu board, I found some oil residue on some of the small chip cards. Cleaned them off with some contact cleaner and blew them off and reinstalled. Got a 912 then. Thought I had corrupted the memory, so I cycled power with the ole"reset delete". This in turn came up with a 912 parity error again. I found one more main card with the piggy back modules. I tried another ram module and got a 913 parity error.

Is there any other thing that might cause it? I have no spares to try.

Thanks

[fanuservicetech]

Do you know if this control is Fanuc 16A, B, or C series? If you are not sure please post the number of the main CPU board ==> should be something like A16B-xxxx-xxxx.

[55belairtim]

i hope you have your paramaters. when i had that happen to my machine i held those buttons and cycled the power and lost every parameter, timer, keeper etc. i then had to slowly get the parameters in one by one. our machine still does this once in a grate while. dont know why but untill it dies completely im not worried about it that much. good luck hope the fanuc tech can help you out.

[ajm100a]

I got the parameters backed up....
The small ram card was an a20b card. I didn't get the main board number...

[ajm100a]

Update, The main board number is a16b-2200-090.
NC status leds
OFF ON OFF OFF
Alarm leds
ON ON OFF

Option board #2 has alarms also...

Status for it is:
OFF ON OFF OFF
ON OFF OFF

Still getting 910, 912, 913 ram parity alarms. Depends on what we remove to clean and reinstall.

[fanuservicetech]

Alarm status indicates problem with your main CPU board a16b-2200-0900 rather than SRAM module problem. Please contact Fanuc America at 888-326-8287 for replacement or repair.

[ajm100a]

Turns out that the pmc module was in the crt slot. DUH!! Someone must have swapped them somewhere in the troubleshooting.

Called Fanuc in for that.

[fanuservicetech]

Not questioning what Fanuc tech told you but any explaination on how the system was able to display message alarms such as 912, 913 on the screen when CRT control module was in the wrong slot...? Anyway, hope this solves your problem.

[ajm100a]

There was not supposed to be a module in the crt slot....it is on another option card. Someone put the PMC module in the crt slot on the main card leaving no PMC module?? Just what we were told.

[cachaco377]

I have a some trouble. I hace a japaneise AMADA LASER with fanuc 16B, main board a16b-2200-090 with alarm 910 or 911. Please, how you find the solution? I press RESET + DELETE, but the trouble continue. I am from Colombia and I have no spares. Regards.