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Thread: Spindle Malfunction

  1. #1
    Member Andrewkbt's Avatar
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    Unhappy Spindle Malfunction

    Hello everyone, I have a problem with my spindle for CNC 1224. It does not revolve/rotate when I set it to 15,000RPM. When I set it to other RPMs (i.e 6000,10000,12000,18000,24000), it revolves/rotates. Secondly, even when I try to cut a model in NCStudio, the spindle does not revolve/rotate. Is it a problem with NCStudio or it is a problem with wiring? I installed NCStudio afresh but still no change.

    Please help me!

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    Member Algirdas's Avatar
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    Default Re: Spindle Malfunction

    did you try S15100 for instance? or S15010.



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    Member Andrewkbt's Avatar
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    Default Re: Spindle Malfunction

    No, I have not. May you please direct me on how to do it! Am new in using NCStudio and CNC machines



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    Default Re: Spindle Malfunction

    Try run the spindle on 15010rpm instead of 15000. That's it.



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    Default Re: Spindle Malfunction

    Okay let me try. Will inform you of outcome

    Thanks



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    Default Re: Spindle Malfunction

    Hello, I have tried setting at 15100 rpm but still not working....Is there anything else I should try?



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    Member Algirdas's Avatar
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    Default Re: Spindle Malfunction

    find out what rpm close to 15000 is running well. For instance, S14900M3
    then try non stop:
    S14900M3
    S15000
    what happens?
    The same investigation starting from 18000 down.



  8. #8
    Member Andrewkbt's Avatar
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    Default Re: Spindle Malfunction

    The next value it revolves at from 15000rpm is 18000rpm.

    Thank you



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    Default Re: Spindle Malfunction

    ok, try to execute without pause:
    S14999M3
    S18000

    what happens?



  10. #10
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    Default Re: Spindle Malfunction

    Hello, I have executed. when I first execute S14999M3, it does not revolve, but after I execute S18000, it then revolves



  11. #11
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    Default Re: Spindle Malfunction

    I have also executed S14999M3 S18000, it rotates



  12. #12
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    Default Re: Spindle Malfunction

    I have tried running the machine for values between S12001 and S15000 but still the machine spindle does not revolve.



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    Default Re: Spindle Malfunction

    (Corrected)

    Your machine has 3 bits for the spindle speed- "low", "medium" and "high". The NC Studio card has 3 separate output pins going to the VFD. Either one of those outputs has gone bad, or one of the VFD inputs got fried, or the wire between them got broken.

    When you command M3 S18000, does the spindle rotate at 18000RPM, or at a slower speed?



  14. #14
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    Default Re: Spindle Malfunction

    what should I do



  15. #15
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    Default Re: Spindle Malfunction

    When i command M3 S18000, the machine rotates at 18000rpm but the rotation seems to be slower. At 12000rpm, the machine seems to rotate faster than on 18000rpm. Please assist.

    Thank you



  16. #16
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    Default Re: Spindle Malfunction

    Check the "Spindle high" output of your breakout card. Measure it with a voltmeter with the spindle on (at 18000RPM) and spindle off.



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