Current set resistors


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Thread: Current set resistors

  1. #1
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    Default Current set resistors

    Hi all,
    I am using the Gecko G540 and all 3 steppers are Nema 23 387ozin 3.5amp. I have read on numerous posts and in the Gecko manual that at 3.5amps I don't need to use current set resistors.
    If I don't the G540 won't go into idle. The only down side of this is that the steppers will run hotter.
    I can't find anywhere that states whether the increased operating temperature will be a problem. Can I safely run without current set resistors?
    I can't find 3.5a resistors but I do have 3.6a ones, Is it ok to go a bit higher on the resistor value or a bit lower?
    Thanks.

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  2. #2
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    Default Re: Current set resistors

    Cookie28b

    3.48K should be fairly easy to locate and the current reduction will work correctly.

    Jeff...

    Patience and perseverance have a magical effect before which difficulties disappear and obstacles vanish.


  3. #3
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    Default Re: Current set resistors

    Ok, thanks Jeff, will go with the 3.48k.
    Cheers.



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