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Thread: Inverter Fault

  1. #1
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    Default Inverter Fault

    Keep getting "System Interrrupt: Inverter Fault".

    Machine has a Yaskawa GPD 506/P5 Inverter.

    I am sure the dust in cabinet hasn't helped, have cleaned out cabinet and inverter but problem seems to be gradually getting worse. Used to happen once a day and now it happens every couple sheets I cut.

    Any suggestions would be great.

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  2. #2
    Member Jim Dawson's Avatar
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    Default Re: Inverter Fault

    The real question is: Is it a real fault, shown on the inverter display, or does the controller just think it's getting a fault signal from the inverter? The former may be a problem with the inverter, the latter could be just a loose wire.

    Jim Dawson
    Sandy, Oregon, USA


  3. #3
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    Default Re: Inverter Fault

    The Inverter is showing EF3 - Ext Fault 3

    I did check to make sure all the terminals were tight on the inverter. Next I guess I should probably check the whole panel for loose wires.



  4. #4
    Member Jim Dawson's Avatar
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    Default Re: Inverter Fault

    That being the case, I would check the electrical diagrams to see what terminal triggers an external fault on the inverter. Then follow that wire back to the source.

    Jim Dawson
    Sandy, Oregon, USA


  5. #5
    Member cncmakers001's Avatar
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    Default Re: Inverter Fault

    Quote Originally Posted by Cabmaker View Post
    Keep getting "System Interrrupt: Inverter Fault".

    Machine has a Yaskawa GPD 506/P5 Inverter.

    I am sure the dust in cabinet hasn't helped, have cleaned out cabinet and inverter but problem seems to be gradually getting worse. Used to happen once a day and now it happens every couple sheets I cut.

    Any suggestions would be great.
    Change a new inverter would be the solution, because if keep showing the error and stop the production is time wasting which means losing money.

    http://cncmakers.com/cnc/controllers/CNC_Controller_System/CNC_Retrofit_Package.html


  6. #6
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    Default Re: Inverter Fault

    What wire is going to terminal 3 on the inverter?

    And what model machine do you have?



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