Fanuc 7115 Alarm ((exclusive)) -

or the control's built-in PMC diagnostic screen to see if the "Spindle Switch" (SSW) signal is stuck or flickering. Hardware Reset:

: Manual jogging might still work, but the moment a spindle speed instruction is sent, the system trips hard. fanuc 7115 alarm

: If you also see a 449 alarm (high current) or EX0099 , it further suggests a systemic electrical issue or a short circuit in the amplifier/cables. or the control's built-in PMC diagnostic screen to

If a machine builder created a custom macro that executes a DPRNT (Print) function or attempts to write to a PLC address that doesn't exist (e.g., W# instruction with an out-of-range byte), the CNC will halt and display 7115 with a sub-code indicating the illegal offset. W# instruction with an out-of-range byte)