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IndustryArena Forum > MetalWorking Machines > Hitachi Seikis > Drive Hitachi Seiki VK45 II
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  1. #1
    Registered
    Join Date
    Oct 2016
    Posts
    14

    Drive Hitachi Seiki VK45 II

    Good morning,

    I have a problem with the servo driver of my VK45. The servo driver is by NEC 193-230072.
    The problem is that the previous owner has burned a mosfet, and replaced it with a compatible and not with an equal.
    Now unfortunately do not remember the original mosfets code.
    I ask if anyone has a similar car if you can not read the letters written on the component.
    I tried the online drive sheet date, but have not found anything

    So the mill work some days, and then i have to change the mosfet again (I think because the features are slightly different)



    Thank you
    Attached Thumbnails Attached Thumbnails Drive.jpg  

  2. #2
    Member
    Join Date
    Dec 2009
    Posts
    479

    Re: Drive Hitachi Seiki VK45 II

    Hello,

    what you need is

    NEC K831 - check for the datasheet here and find one that is compatible if need be

    2SK831 Datasheet(PDF) - NEC

    John

    Quote Originally Posted by firstreal View Post
    Good morning,

    I have a problem with the servo driver of my VK45. The servo driver is by NEC 193-230072.
    The problem is that the previous owner has burned a mosfet, and replaced it with a compatible and not with an equal.
    Now unfortunately do not remember the original mosfets code.
    I ask if anyone has a similar car if you can not read the letters written on the component.
    I tried the online drive sheet date, but have not found anything

    So the mill work some days, and then i have to change the mosfet again (I think because the features are slightly different)



    Thank you

  3. #3
    Registered
    Join Date
    Oct 2016
    Posts
    14

    Re: Drive Hitachi Seiki VK45 II

    Thank you so much John

  4. #4

    Join Date
    Jan 2021
    Posts
    13

    Re: Drive Hitachi Seiki VK45 II

    HI
    *I have a hitachi seiki vk45 vmc Ladder corrupted*and no backup and no softwarecan you please*help me(austrikengineering@gmail.com)

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