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Thread: VAC-II drive unit

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  1. 01-27-2015, 03:08 AM #1
    KHOATRANNGOC
    KHOATRANNGOC is offline Registered
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    May 2011
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    VAC-II drive unit

    Hello,
    I have the machine Okuma MC-30VA OSP5020M. VAC-II Drive Unit D8A VACA121K
    Power on it alarm M1, M2 red led flash, CPU alarm orange led on, green led 3 on, green led 12 on, 7-segment led number 15.
    I check all +15V -15V +5V good, Power of VAC-II 200VAC good and all fuse good.
    Please help me.
    Thank you very much.
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  2. 01-27-2015, 07:34 AM #2
    kurmay
    kurmay is offline Member
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    Re: VAC-II drive unit

    VACII Drive Unit book
    Attached Thumbnails Attached Thumbnails Drive Unit #VACII# Maintenance Manual %1st.pdf  
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  3. 01-27-2015, 11:28 AM #3
    fordav11
    fordav11 is offline Gold Member
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    Re: VAC-II drive unit

    better to read the thread set up for this purpose.....
    http://www.cnczone.com/forums/okuma/...fix-notes.html
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  4. 01-31-2015, 07:21 AM #4
    KHOATRANNGOC
    KHOATRANNGOC is offline Registered
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    Re: VAC-II drive unit

    Hello,
    Thank you very much for your help.
    Resistor on the main board VAC-II broken. I replace it and now good.
    Thanks
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