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.

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

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

Quote:

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Originally Posted by hmoltedo

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

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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