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IndustryArena Forum > MetalWorking Machines > Hitachi Seikis > numc_board sys_fail . Error on Hitachi Seiki VK45-2
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  1. #1
    Join Date
    Jun 2015
    Posts
    42

    numc_board sys_fail . Error on Hitachi Seiki VK45-2

    Hi Guys,

    having troubles with my Hitachi Seiki VK45-2 with Seicos control. The control does not start up saying NUMC_BOARD_SYS_FAIL . Then it shows "table checksum failed". I assume that the problem is in control board and already called for a fellow guy who specialise in cnc controls but maybe some of you already have gotten such an error ?

  2. #2
    Join Date
    Dec 2009
    Posts
    539

    Re: numc_board sys_fail . Error on Hitachi Seiki VK45-2

    Hello
    could be the board itself, the NUMC are faulty at times. If you are getting this alarm randomly you can try to re-seat the NUMC and see if its a connection issue. Try that and report back
    John

  3. #3
    Join Date
    Jun 2015
    Posts
    42

    Re: numc_board sys_fail . Error on Hitachi Seiki VK45-2

    Quote Originally Posted by shas595 View Post
    Hello
    could be the board itself, the NUMC are faulty at times. If you are getting this alarm randomly you can try to re-seat the NUMC and see if its a connection issue. Try that and report back
    John
    Just got back to the shop. Had reset NUMC and SPHC boards and do not know what to do further - it's just sends these errors (on attached photo) and i cannot clear them and go further than that screen (i assume that i need to set all the parameters back but cannot proceed to that menu)
    Attached Thumbnails Attached Thumbnails 111111.jpg  

  4. #4
    Join Date
    Dec 2009
    Posts
    539

    Re: numc_board sys_fail . Error on Hitachi Seiki VK45-2

    Hello
    do you mean you replaced the boards? If so you need to regenerate the data and reenter it, its not a hrad process. Please confirm if you did in fact replace the boards
    John

    Quote Originally Posted by evidence_87 View Post
    Just got back to the shop. Had reset NUMC and SPHC boards and do not know what to do further - it's just sends these errors (on attached photo) and i cannot clear them and go further than that screen (i assume that i need to set all the parameters back but cannot proceed to that menu)

  5. #5
    Join Date
    Jun 2015
    Posts
    42
    Quote Originally Posted by shas595 View Post
    Hello
    do you mean you replaced the boards? If so you need to regenerate the data and reenter it, its not a hrad process. Please confirm if you did in fact replace the boards
    John
    Hi, I mean that I just drained a battery (condensers) on purpose to clear all parameters on these boards.

  6. #6
    Join Date
    Jul 2021
    Posts
    0

    Re: numc_board sys_fail . Error on Hitachi Seiki VK45-2

    Hi Evidence, did you ever resolve the problem. i'm having sim. problems with my mill and looking for info if you would care to share .

    Adrian [email protected] in case you would prefer to email. Thanks'

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