set relative value to zero

HI All
i have a problem with set zero in relative screen (lathe machine)
when i want to set the tool in X or Z to zero in relative the value dosen't change to zero (only in relative coordinates) the machine is
Colchester-Harrison GE Fanuc ALPHA X Series Lathe(touch screen)
note : i have set up refrence return to the machine after the battery became low and released APC alarm X & Z need zero return ,
i changed the batteries and the machine works fine now except the relative zero for X& Z AXIS
are there some parameter to change or something else?
any suggestions, opinions or help will be appreciated
thanks in advance

on later Fanuc controls you can only set relative position page to zero. X and Z absolute page you can not reset to 0 manually.
which control do you have?

thnx for ur reply fordav 11 , actually that's my problem , i need to set zero in relative page, when i work with handle and touch the tool tip at the face of work piece and select relative page to set Z axis to zero it doesn't change the value to zero neither in Z nor in X axis
the machine is: Colchester-Harrison GE Fanuc ALPHA X Series Lathe
(touch screen) the controller is 21i

Quote:

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Originally Posted by nabil_elbadri

thnx for ur reply fordav 11 , actually that's my problem , i need to set zero in relative page, when i work with handle and touch the tool tip at the face of work piece and select relative page to set Z axis to zero it doesn't change the value to zero neither in Z nor in X axis
the machine is: Colchester-Harrison GE Fanuc ALPHA X Series Lathe
(touch screen) the controller is 21i

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With a Series 21i, are you doing the following to set the Relative Page Axis Position to Zero?

1. Press POS Hard button
2. Select REL
3. Input Axis Name you want to Zero
4. Press ORIGIN Soft Key
5. Press EXEC Soft Key

Regards,

Bill

thnx for ur reply angelW last step i didn't do it exec
so i will try it as soon as i got to the workshop
thnx again for ur help guys

relative position page axis are usually not XYZ.
for X axis you need to press U and ORIGIN
V ORIGIN for Y axis
W ORIGIN for Z axis