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IndustryArena Forum > CNC Electronics > Gecko Drives > Current set resistors

Thread: Current set resistors

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  1. 07-31-2014, 07:09 AM #1
    cookie28b
    cookie28b is offline Registered
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    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. 07-31-2014, 07:55 AM #2
    jalessi
    jalessi is offline Gold Member
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    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.
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  3. 07-31-2014, 08:42 AM #3
    cookie28b
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    Re: Current set resistors

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