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IndustryArena Forum > MetalWorking Machines > Hitachi Seikis > Hitachi seiki vm40 spindle wont go over 3000rpm
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  1. #1

    Hitachi seiki vm40 spindle wont go over 3000rpm

    Hi i hope some one can help. I have a Hitachi seiki vm40 with Seikos control, it has Mitsubishi 6000rpm spindle motor and drive. It will not go above approx 2900rpm. No alarms, no load on spindle, no noises. Control working perfectly otherwise. Can some one give me some helpful advice?
    Thanks in advance,
    Craig.

  2. #2
    Member
    Join Date
    Dec 2019
    Posts
    18

    Re: Hitachi seiki vm40 spindle wont go over 3000rpm

    I’m using big drill on my late I often get alarm 3100 (servo alarm) and 3141 (axis overrun protection x axis) it always happens when drill is going back to zero point during g00 z20.0m09 G97 g30 u0 w0







    Kodi nox

  3. #3

    Join Date
    Jul 2020
    Posts
    1

    Re: Hitachi seiki vm40 spindle wont go over 3000rpm

    Do you have a winding's selector? Sounds like you are not getting into the H windings? Also, check the drive parameters? Did this happen all of a sudden?

  4. #4

    Re: Hitachi seiki vm40 spindle wont go over 3000rpm

    Quote Originally Posted by Craig1971 View Post
    Hi i hope some one can help. I have a Hitachi seiki vm40 with Seikos control, it has Mitsubishi 6000rpm spindle motor and drive. It will not go above approx 2900rpm. No alarms, no load on spindle, no noises. Control working perfectly otherwise. Can some one give me some helpful advice?
    Thanks in advance,
    Craig.
    If it is using frequency inverter, then you can check its setting for highest speed, is it match with 6000rpm speed?
    Or you can check the electronic gear ratio setting.
    http://cncmakers.com/cnc/controllers/CNC_Controller_System/CNC_Retrofit_Package.html

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