Fanuc 7115 Alarm !new! May 2026

FANUC 7115 alarm is a spindle-related fault, typically identified as the SP Switch Control Alarm

If this "handshake" fails, the 7115 alarm triggers to prevent mechanical damage or electrical surges that could occur if the machine tried to accelerate while stuck between ranges. Common Root Causes Electrical Power Loss: A common culprit is the failure of the 24VDC power supplies fanuc 7115 alarm

• Example: 7115 ILLEGAL PLC ADDRESS (WORD) - ADDRESS: G0120 This tells you exactly which memory address caused the fault.

FANUC 7115 alarm is specifically identified as the SPN 1: SP Switch Control Alarm FANUC 7115 alarm is a spindle-related fault, typically