These are bit settings or numerical values stored within the CNC controller. They are typically binary (0/1) toggles that turn specific hardware options on or off. For example, setting bit 9925.0 to "1" may activate helical interpolation, a feature that is not standard on all base-level controllers. These options are often tied to a software key or a paid hardware upgrade installed by FANUC or the machine builder.
Yes. If the CNC backup battery fails, all 9000 parameters revert to zero (options disabled). You must reload from a backup or have the MTB re-enable them (sometimes for a fee).
Experienced technicians use these parameters to map specific M-codes or G-codes to trigger 9000-series macro programs, streamlining complex operations. The Risks of "Trial and Error" fanuc 9000 parameters list
Configuring deep-level communications with external PCs, networks, and the FANUC PMC (Programmable Machine Control).
Expanding work coordinate systems (e.g., from G54-G59 to hundreds of offsets). These are bit settings or numerical values stored
Depending on your specific control model (e.g., Series 0, 10, 15, 18, 31i), these parameters vary. Below is a list of common system and option parameters found in the 9000 range:
Fanuc 9000 series parameters (and often 9100-9999 depending on the model) are specialized settings that define the options installed on the CNC machine. Unlike standard user parameters ( ) that adjust backlash or acceleration, the These options are often tied to a software
To edit, delete, or view the 9000‑series programs, you must also modify a dedicated security bit.
That said, "9000 parameters" is an umbrella term that can be applied to two very different, yet equally critical, parts of a FANUC CNC system. This article cuts through the confusion to provide a thorough and practical guide to both:
| Parameter No. | Bit | Function (When Bit = 1) | |---|---|---| | | #0 | Fixed cycles (G81–G89) enabled | | 9920.1 | #1 | Tool offset input via G10 enabled | | 9920.2 | #2 | Manual Pulse Generator (MPG) feed enabled | | 9920.3 | #3 | 1 MPG control (handwheel) enabled | | 9920.4 | #4 | Spindle analog output (S4/S5) enabled | | 9920.5 | #5 | Inch/metric conversion enabled (mirror of 900.4 on older systems) | | 9922.2 | #2 | Constant surface speed control (G96/G97) enabled | | 9922.5 | #5 | Stored pitch error compensation enabled | | 9922.6 | #6 | Custom Macro A enabled |