Fanuc 7115 Alarm Direct

| Bit | Function | Effect on 7115 | | :--- | :--- | :--- | | | Reference point return direction | If set opposite to actual dog approach direction → 7115 alarm |

At its core, the 7115 alarm is a feedback loop failure. The CNC controller sends a command to the Fanuc servo drive, which in turn moves the motor. When the actual position reported by the encoder differs too significantly from the commanded position—often due to mechanical resistance or electrical glitches—the system triggers the 7115 code to prevent damage. Primary Causes fanuc 7115 alarm

(often two Izumi modules sitting side-by-side) that power the spindle switching relays and logic. Relay and Hardware Fatigue: The physical 24V relays | Bit | Function | Effect on 7115