7115 Alarm Message: OVERSPeed (or related parameter error) Applicable Systems: Fanuc Series 16i/18i/21i, 16/18/21, 0i, and 30i Series controls.
The internal control board cannot properly regulate the voltage passing through the IPM.
The most critical first step is to confirm the alarm number. Double-check your CNC controller's display. The alarm number 7115 might be accompanied by a prefix like "SV" (Servo), "PS" (Power Supply), or "SR" (Spindle). This prefix is a vital clue that points you directly to the source of the issue. fanuc 7115 alarm
If your machine uses a physical gearbox to change ranges, check the proximity sensors that detect the position of the gears. Look for LEDs on the sensors. Verify the sensors are not covered in coolant or oil. Ensure they are not loose. 7115 Alarm Summary Table Potential Issue Tips welded, bad aux contacts Replace contactors (KM1/KM2) I/O Modules No signal reaching PLC Check input status on FANUC diagnostics Wiring Broken wire in electrical cabinet Trace and repair connection Sensors Misaligned or damaged Clean, adjust, or replace sensor Preventing Future 7115 Errors
: Provides specific hardware-related troubleshooting for Alpha drives and power supplies. MRO Electric specifically for this alarm? Common FANUC CNC Alarms List 30 Aug 2021 — 7115 Alarm Message: OVERSPeed (or related parameter error)
Do not simply cycle power repeatedly. This alarm often latches because the underlying corruption persists. Follow this step-by-step guide.
To understand the 7115 alarm, you must understand three acronyms: , PMC , and I/O . Double-check your CNC controller's display
Continuous axis movement has frayed the internal copper strands inside the flexible cable tracks. 3. Mechanical Overload
(Spindle Amplifier) on the control. Look for accompanying errors like (Panel Alarm) or