MC-40H065 "ALARM P servoprocessor error"

[Algirdas]

The problem when OSP is booting up. Machine: MC-40H, OSP 5000M-G, DOB: 1987. Machine is second hand one. Sweedish interface installed.
SBP Monitor
>
OSP doesn't boots up

[Superman]

You of all people should know the importance of supplying the entire alarm code string

What are the last codes to the alarm ????
the books say there is more to the alarm

[OkumaWiz]

What we have here is a failure to communicate...

Servo processor boards to the NC. Check your cables for loose connections and your servo drives for additional error codes on the drive themselves.

It will not boot if it can't talk to the drives.

If it can't boot, it can't give you alarm codes! It will however give you a bunch of garbage addresses etc, on the screen.

[Algirdas]

I just approached the machine today.
Entire alarm is:
065 servoprocessor failure during NC boot A000001
it means, X axis encoder fault.
I swiched X and Y axis encoders connectors to SVC-A boards, I swiched SVC-A boards (jumpering properly of course) and still I have the same alarm.
"E" type encoder is used instead of "F" type encoder, it's example given as explanation why this alarm occurs. The encoder is "E" type, if I understand correctly, so I have wrong data in buble memory. The backup battery has 3,71V (nominal litium battery 3,6V). Maybe someone replaced battery improper?
Machine has 8" floppy and paper tape reader.

[juniormaster]

You need to change encoder to Y if alarm changes axis then it sounds like your problem is the encoder (can be replaced with an FC encoder). If the alarm doesnt change then you need to swap SVP boards(you might not be able to change svp boards make sure they have the same a911 number.) Kinda didnt really do anything by you swapping svc boards, just gave drive a different board.

[Algirdas]

English language ... I have changed SVC-A boards (taking care of jumpering) and I connected Y encoder to X board in every combination. Alarm is the same. Most likely, the problem is in bubble memory.
What is interresting there: paper version of OSP data management card shows "E" type encoders are used, but "original" backup copy of OSP data management card shows "F" type encoders. Numbers and even date of both copies are the same.

[Algirdas]

the reason was squeezed X axis encoder cable. Four lines were nearly cut away.
what I did wrong at first, i disconnected encoder cables only from SVC-A boards. More important is to disconnect from SVP boards. But at this case no difference - alarm is the same all the time.