If you get a "System Alarm" immediately after changing a 900 parameter, the control has detected an invalid configuration. Revert to the previous value.
Press the function key (sometimes labelled DGNOS/PARAM ). fanuc ot 900 parameter list
| Bit | Name | Function | | :--- | :--- | :--- | | 0 | SHP2 | Shop floor programming 2 | | 1 | NUR | NURBS interpolation (spline machining) | | 2 | QVS | Quick view solid (3D graphics) | | 3 | CLK | Clock function (#3001 time variables) | | 4 | BSK | Block skip (/) function extension | | 5 | PCH | Punching cycle pack | | 6 | SCB | Skip cycle block | | 7 | CAM | Cam cycle (for hydraulic cam machines) | If you get a "System Alarm" immediately after