When the 3.6V lithium battery on the master board fails, the SRAM loses all this data. If you do not have a paper backup or the with the standard defaults, you cannot even begin to type in new values because the machine won't let you access the setting screen without correct basic parameters.
The following are frequently referenced parameters for the 10M series: How to Enable Parameter Write Enable (PWE) on a Fanuc CNC Fanuc 10m Parameter Manual
Modifying parameters without an exact understanding of their function can cause severe machine crashes, servo runaway, or permanent hardware damage. When the 3
Do not wait for the low battery alarm. That alarm means you have 72 hours left. With this manual, you are the master of the black CRT. Without it, you are a spectator. Do not wait for the low battery alarm