I need help ~
i have a NL series machine and it's battery for NC,SERVO parts was down,
so i changed it and resetting the absolute position (X,Y,Z) yesterday
however, when I try to set for 'T' axis today, the problem is that i can not change the status of ZERO POINT SET to 'VALID'
when I try to change it to 'VALID', the message 'zero point set is already done' is issued, even T axis doesn't set before
please let me know the way to change ZERO POINT SET to 'VALID'
or the way to set T axis ~