Can't home Z 500 over travel alarm

[adamant]

Talent 8/52
oi-TC control

Everything was working fine yesterday.

Today when I powered up X homed fine.
Z gave a alarm 500, Z overtavel.

Not sure how to troubleshoot this.

I'm looking at the censors in the back but and not sure how they work with the parameters. I see two ramped sensors. the sensor falls off the ramp about .100 before the overtravel alarm.

Thanks for any help.
Sure would like a trouble shooting guide for this machine!

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[Lyfordln1]

Try the following. Shut off machine, hold "P" and "Can" together and restart machine.Hold untill startup is complete. Then try to re-home.
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[adamant]

Try the following. Shut off machine, hold "P" and "Can" together and restart machine.Hold untill startup is complete. Then try to re-home.
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I was reluctant to do this because on my control, the O and the P hard key are the same button. Found a link that said the same thing. Asked tech and he said the same thing.

It worked. Thanks for your help.

[Mcdicer69]

That did the trick : )
Thanks for your help!!!

[waseem.malik]

dear sir i use fanuc oi tc.machine indicate alram no500 xaxis over travel.plz guide me.
machine can not homing
best regards

[lasernerd]

Just wanted to confirm that the P/O + CAN (P and O are same button) solution worked on our Hardinge T42 with 18T fanuc control when it had this odd 500 X+ over travel error. Thank goodness!

[Uguessedit]

Try the following. Shut off machine, hold "P" and "Can" together and restart machine.Hold untill startup is complete. Then try to re-home.
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Thank You. It was a lot quicker looking here than in my manual books. Glad to have them but where to look through 500 pages? Lol.