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IndustryArena Forum > Machine Controllers Software and Solutions > Fanuc > Home position problem in CNC turning Center
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  1. #1
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    Oct 2014
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    22

    Home position problem in CNC turning Center

    Dear All,

    I need your help regarding our machine. We have COLCHESTER 2000L CNC Turning Center, Controller FANUC OT. The problem is, when we give the command for home position its x axis reaches its home position but z axis does not. I have disengage the belt of z axis from its motor and when the command for home position is given its z axis motor keeps on running and don't stop or engage at some point.

    Kindly help me in this situation. Thank you.

  2. #2
    Junior Member
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    Oct 2014
    Posts
    3

    Re: Home position problem in CNC turning Center

    Does it have any alram or not ?.
    I think it loss z home position. Pls try to reset home position.

  3. #3
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    Dec 2008
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    9

    Re: Home position problem in CNC turning Center

    hello all, i have the same machine (COLCHESTER 2000L CNC), but i dont see any limit switches or home switches, do you know where they are located in the axis z and x? thanks for your help
    regards
    Humberto

  4. #4
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    Join Date
    Aug 2011
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    7

    Re: Home position problem in CNC turning Center

    Quote Originally Posted by hmoltedo View Post
    hello all, i have the same machine (COLCHESTER 2000L CNC), but i dont see any limit switches or home switches, do you know where they are located in the axis z and x? thanks for your help
    regards
    Humberto
    There are no zero return switches or overtravel switches
    Over travels are set up in the soft limit parameters

    You need to reset your origin positions
    par 22 bit 0= x bit 1=z

    set parameter to 0 on required axis
    move with hand wheel to correct zero position( look in your manual, gives dimensions to ref point from chuck face/ chuck centreline position)
    BE CAREFUL NOT TO TRAVEL TO FAR AS YOU WILL HIT THE END OF TRAVEL AND CAUSE DAMAGE
    Set parameter 22 to 1 on the axis you are setting up
    switch off and back on

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