Battery-related errors indicating the absolute position data is at risk. How to Set or Reset the Absolute Position
A severe impact can jump the encoder or move the physical axis, making the stored value in 1860 inaccurate. Related Alarms fanuc parameter 1860
If there is an issue with the absolute position data, you may encounter specific : the absolute position is lost
If the encoder batteries die, the absolute position is lost, and Parameter 1860 may need to be reset. fanuc parameter 1860