Meldas 520 AML EMG


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Thread: Meldas 520 AML EMG

  1. #1
    ros78's Avatar
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    Default Meldas 520 AML EMG

    Good morning,
    I have a supermax tc15 lathe two axis with Mit.Meldas 520 AML.
    The machine is in emergency but ready.
    The CN has:
    QX084 P.S. with green led1 lit,led2 led3 not lit, battery 3,1V, DC5V,DC12V, AC100V are OK
    QX611-1 CPU card with green led1 lit, green led2 flicker, green led3,4 dim lit
    QX522 video card with green led1 lit, red led 2,3 lit(feedback alarm)
    Two QX531 in-out card
    No warning on servo drive/spindle and x,z axis, turret etc. works fine. If i open R69 all bits are 1.
    I have replaced QX084,Qx611-1(change eeprom, reload parameters and fixed cycle), replaced video board QX522,
    replaced Tamagawa external encoder, but two red led on QX522 are red lit and green led1 QX611 is lit yet.I have not checked the PLG spindle motor resolver.
    Could somebody help me, thanks in advance.
    Regards

    Rosario



  2. #2
    Member Drisscn's Avatar
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    Default

    which battery did you test the battery of the psu i think 3v and for the absoulut posistion 3,6 send me a picture



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