If your machine has lost its home position (often indicated by ), use this procedure:

To optimize your Fanuc 0T lathe, focus on these critical parameter groups: Precision and Accuracy

The following parameters are primary for managing the reference position and stroke limits:

This report outlines the essential parameters and procedures for optimizing the

Reference return was interrupted (RESET pressed during return). Fix: Perform full reference return (press ZRN + axis direction key) and allow axis to complete deceleration and stop.

Here is a more comprehensive list of reference parameters for FANUC OT: