Need Help! Fanuc 11m Ram Parity Error / Adress Error


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Thread: Fanuc 11m Ram Parity Error / Adress Error

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    Default Fanuc 11m Ram Parity Error / Adress Error

    Hi, I know three was many threads about it, but i think my problem is another.

    Matsura MC600h. When I turn the machine on, she's working 30s to 1 minute and then display Ram Parity Error. When I turn she again is displayed Adress Error or IPL menu.

    Should I clear memory or the problem is in voltage 24DC? What signals should been on ALC & ALD connectors?


    Sorry for my English.
    Best regards

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    Default Re: Fanuc 11m Ram Parity Error / Adress Error

    Make sure you have a complete back first.
    Check all voltages when the problem occurs: 5V. +-15V, 24V
    If you have a ROM/RAM board, it is the likely culprit, but you can't rule out the main board.



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    Quote Originally Posted by memoryman View Post
    Make sure you have a complete back first.
    Check all voltages when the problem occurs: 5V. +-15V, 24V
    If you have a ROM/RAM board, it is the likely culprit, but you can't rule out the main board.
    Thanks for your answer. Voltages on Master PCB are correct,but I don't know what voltages should be on Alc & Ald Pins on I/O Board. In mine machine they have 22Volts but I don't know if it has any effect. I have backup of the parameters. I'm a little scared clear memory ????



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Fanuc 11m Ram Parity Error / Adress Error

Fanuc 11m Ram Parity Error / Adress Error