He powered off. Counted ten seconds. Powered on.
Modifying these parameters is sensitive and typically requires a specific procedure to unlock the control: Enable PWE Parameter Write Enable (PWE) to 1 on the "Setting" screen. Enter EDIT Mode fanuc ot 900 parameter list
Press the SYSTEM key and search for the specific parameter (e.g., 901). He powered off
| Bit | Name | Function | | :--- | :--- | :--- | | 0 | HSM | High-speed machining (look-ahead) | | 1 | RIN | Rigid tapping (G84.2 / G84.3) – Critical for live tooling | | 2 | PRC2 | Advanced precision contouring (improved block transition) | | 3 | F15 | F15 format part system | | 4 | LK3 | Helical interpolation (Z axis movement during circular interpolation) | | 5 | CX1 | Chamfering / corner rounding (G01 with ,C or ,R) | | 6 | PPB | Program re-start (from any sequence number) | | 7 | NC1 | NC unit for punching | Conquest) | 902 bits 7-6=10 (PMC-R)
| Machine Builder | Typical 900 Params (examples) | Notes | |----------------|--------------------------------|-------| | (OSP 7000L) | 906 bit 0=1 (dogless reference), 908 bit5=1 (shortest path turret) | Uses absolute encoders – 900 params must match encoder type | | Mori Seiki (SL series) | 907 bit6=1 (rigid tapping), 910 bit7=1 (4th axis live tooling) | Heavy use of 904 PMC ladder protection | | Hardinge (T42, Conquest) | 902 bits 7-6=10 (PMC-R), 908 bit3=1 (random tool selection) | Unique tool changer logic tied to param 941-944 | | Haas (HL-1, HL-2 – early models) | 905 bit7=1 (custom macro), 909 bit4=1 (DNC with no parity) | Haas used modified FANUC OT firmware – check service manual |