Fanuc 7115 Alarm -

| Bit | Function | Recommended Value | | :--- | :--- | :--- | | | Reference point return direction check | 1 (Skip check – default for most machines) | | | | 0 (Check enabled – more strict, may cause 7115) |

In simpler terms: The CNC commanded the axis to move in the direction of the reference point (e.g., + direction), but the position feedback or limit switch configuration suggests the axis would have to move in the opposite direction to reach the reference point. The CNC detects this as an impossible or dangerous condition. fanuc 7115 alarm

The is a spindle-related fault primarily associated with the SP Switch Control system . This alarm indicates that the CNC controller has detected an issue with the switching contactors used for spindle speed control—specifically, that they are not engaging or "pulling in" correctly during power-on or operation. Understanding the 7115 Alarm | Bit | Function | Recommended Value |