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IndustryArena Forum > CNC Electronics > CNC Machine Related Electronics > E-stop, Interrupt The 110v Ac Or 28v Dc?
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  1. #1
    Join Date
    Sep 2003
    Posts
    1475

    Question E-stop, Interrupt The 110v Ac Or 28v Dc?

    The E-Stop button is a big heavy one, cannot find any ratings on it, or numbers that look like ratings.

    It has two sets of contacts, I’ll use one for the 5V to the breakout board.

    The other one I plan to use to interrupt the 28V PS. To the Stepper control boards. Should I run 110V AC through the E-Stop or should I run the 28V DC through the E-Stop SW?

    Thanks
    Hager
    Attached Thumbnails Attached Thumbnails E-StopSW.jpg  

  2. #2
    Join Date
    Dec 2003
    Posts
    24222
    As far as the voltage rating, they generally are rated for at least 250v.
    whether you interupt the 110ac or 28v depends of course on your circuit.
    Al.
    CNC, Mechatronics Integration and Custom Machine Design

    “Logic will get you from A to B. Imagination will take you everywhere.”
    Albert E.

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