In MDI mode, with PWE=1, typing parameters 9900–9999 often shows “****” or “0”. To view:
: Go to the SETTING screen and set Parameter Write Enable (PWE) to 1 (this will trigger an alarm, which is normal). fanuc 9900 parameter list
Additional axis control (4th/5th axis), Axis mirroring, Circular interpolation In MDI mode, with PWE=1, typing parameters 9900–9999