Key in the new value and press the INPUT key.
Many machine-specific functions and alarms are managed through the PMC's Keep Relays (K parameters), which you manually recorded. Here's a classic example of how to use them for troubleshooting: Fanuc 10m Parameter Manual
Press the RESET key to clear the parameter alarm. Troubleshooting with the Fanuc 10M Manual Key in the new value and press the INPUT key
Before you can change a single number, you must "unlock" the parameters. Here’s how to do it using the software-based Parameter Write Enable (PWE) method: Fanuc 10m Parameter Manual
Before changing any parameters, use the PUNCH feature on the control to save your existing parameters to an external device.