Dear Experts,
I am working on cnc lathe equipped with fanuc oi-tf controller with C axis. My machine showed low battery alarm and I replaced the batteries while machie was OFF which is totally wrong. i didnt know that batteries should be repalced in ON position. There were some other alarms which has been removed by moving the turret more than one rotation via manual clamp/unclam procedure of turret.

Now machine is showing EX 1003 Turret mis- index alarm and EX1107 Tooling axis not orientation. My machine tool builder asked me change parameter 1815 for positional reference. I done accordingly but problem still persists. I cant change parameter 1815 bit APC for turret axis (machine shown APC alarm) and when i change bit APZ from 0 to 1, after turning off the value become zero by itself.

I am in deep trouble since two weeks. Can anybody help me regarding this issue?