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IndustryArena Forum > MetalWorking Machines > Knee Vertical Mills > Enshu Yuasa AccuMill 1547 with Fanuc 3M
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  1. #1
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    Enshu Yuasa AccuMill 1547 with Fanuc 3M

    I keep getting a Z overtravel alarm. While attempting a reference return it will go above zero and trip out on a servo reading before hitting the overtravel limit switch..
    How do you calibrate this axis?

  2. #2
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    Please check the limit switch, its resistance should change as the dog moves its arm past the contact point...

  3. #3
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    Which limit switch? I have a upper a lower and a slowdown on the left side.

  4. #4
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    Well, since the Z axis is probably over travelling going in the up (Z+) direction, I would check all of the limit swithces that it is hitting going up (in direction of the alarm) first.

  5. #5

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    Re: Enshu Yuasa AccuMill 1547 with Fanuc 3M

    Quote Originally Posted by fixer2 View Post
    Which limit switch? I have a upper a lower and a slowdown on the left side.

    I have similar problem but it is a not ready alarm that won’t go away.

    Here are details: https://www.cnczone.com/forums/fanuc...tem-ready.html

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