Fanuc: 9900 Parameter List

These control the configuration of input/output signals, such as those for tool changers, coolant systems, and spindle control.

After installing the new motor (same specs), you verify the ID code. If it changed, you set 9900 to the correct ID from Fanuc’s motor list, then power off/on. The CNC then auto-configures current limits, feedback gain, and encoder resolution based on that ID. fanuc 9900 parameter list