Fanuc Alarms

Fanuc Alarm 416 SERVO ALARM: n–TH AXIS – DISCONNECTION Fanuc Servo Alarm Description Position detection system fault in the n–th axis (axis 1–4) pulse coder (disconnection alarm). Refer to diagnosis…

Fanuc Alarm 415 SERVO ALARM: n–TH AXIS – EXCESS SHIFT Fanuc Servo Alarm Description A speed higher than 524288000 units/s was attempted to be set in the n–th axis (axis…

Fanuc Alarm 414 SERVO ALARM: n–TH AXIS – DETECTION RELATED ERROR Fanuc Servo Alarm Description N–th axis (axis 1–4) digital servo system fault. Refer to diagnosis display No. 200, 201,…

Fanuc Alarm 411 SERVO ALARM: n–TH AXIS – EXCESS ERROR Fanuc Servo Alarm Description The position deviation value when the n–th axis (axis 1–8) moves is larger than the set…

Fanuc Alarm 410 SERVO ALARM: n–TH AXIS – EXCESS ERROR Fanuc Servo Alarm Description The position deviation value when the n–th axis (axis 1–8) stops is larger than the set…

Fanuc Alarm 409 SERVO ALARM: n AXIS TORQUE ALM Fanuc Servo Alarm Description Abnormal servo motor load has been detected. Alternatively, abnormal spindle motor load has been detected in Cs…

Fanuc Alarm 407 SERVO ALARM: EXCESS ERROR Fanuc Servo Alarm Description The difference in synchronous axis position deviation exceeded the set value.

Fanuc Alarm 405 SERVO ALARM: (ZERO POINT RETURN FAULT) Fanuc Servo Alarm Description Position control system fault. Due to an NC or servo system fault in the reference position return,…

Fanuc Alarm 404 SERVO ALARM: n–TH AXIS VRDY ON Fanuc Servo Alarm Description Even though the n–th axis (axis 1–8) READY signal (MCON) went off, the servo amplifier READY signal…

Fanuc Alarm 403 SERVO ALARM: CARD/SOFT MISMATCH Fanuc Servo Alarm Description The combination of the axis control card and servo software is illegal. The possible causes are as follows: ·…

Fanuc Alarm 402 SERVO ALARM: SV CARD NOT EXIST Fanuc Servo Alarm Description The axis control card is not provided.

Fanuc Alarm 401 SERVO ALARM: n–TH AXIS VRDY OFF Fanuc Servo Alarm Description The n–th axis (axis 1–8) servo amplifier READY signal (DRDY) went off. Refer to procedure of trouble…

Fanuc Alarm 400 SERVO ALARM: n–TH AXIS OVERLOAD Fanuc Servo Alarm Description The n–th axis (axis 1–4) overload signal is on. Refer to diagnosis display No. 200, 201 for details.

Fanuc Alarm 971 NMI OCCURRED IN SLC Fanuc System alarm Description With the PMC–SA1, an I/O Link disconnection was detected. Check the I/O Link.

Fanuc Alarm 970 NMI OCCURRED IN PMCLSI Fanuc System alarm Description With the PMC–SA1, an error occurred in the PMC control LSI device on the motherboard. (I/O RAM parity) Replace…

Fanuc Alarm 976 L–BUS ERROR Fanuc System alarm Description A bus error occurred on the local bus. The motherboard may be faulty.

Fanuc Alarm 975 BUS ERROR Fanuc System alarm Description A bus error occurred on the motherboard. The motherboard may be faulty.

Fanuc Alarm 974 F–BUS ERROR Fanuc System alarm Description A bus error occurred on the FANUC bus. The motherboard or option board may be faulty.

Fanuc Alarm 973 NON MASK INTERRUPT Fanuc System alarm Description An NMI occurred as a result of an unknown cause.

Fanuc Alarm 972 NMI OCCURRED IN OTHER MODULE Fanuc System alarm Description An NMI occurred on a board other than the motherboard. The option board may be faulty.

Fanuc Alarm 951 PMC WATCH DOG ALARM Fanuc System alarm Description An error occurred in the PMC. (Watchdog alarm) The motherboard may be faulty.

Fanuc Alarm 950 PMC SYSTEM ALARM Fanuc System alarm Description An error occurred in the PMC. The PMC control circuit on the motherboard may be faulty.

Fanuc Alarm 935 SRAM ECC ERROR Fanuc System alarm Description An error occurred in RAM for part program storage. Action: Replace the master printed circuit board (SRAM module), perform all–clear…

Fanuc Alarm 930 CPU INTERRUPT Fanuc System alarm Description CPU error (abnormal interrupt). The motherboard or CPU card may be faulty.

Fanuc Alarm 926 FSSB ALARM Fanuc System alarm Description FSSB alarm. Replace the axis control card.

Fanuc Alarm 921 SERVO ALARM (5–8 AXIS) Fanuc System alarm Description Servo alarm (fifth to eighth axis). A watchdog alarm condition occurred, or a RAM parity error occurred in the…

Fanuc Alarm 920 SERVO ALARM (1–4 AXIS) Fanuc System alarm Description Servo alarm (first to fourth axis). A watchdog alarm condition occurred, or a RAM parity error occurred in the…

Fanuc Alarm 919 DRAM PARITY : (BYTE 7) Fanuc System alarm Description A RAM parity error occurred in the DRAM module. Replace the DRAM module.

Fanuc Alarm 918 DRAM PARITY : (BYTE 6) Fanuc System alarm Description A RAM parity error occurred in the DRAM module. Replace the DRAM module.

Fanuc Alarm 917 DRAM PARITY : (BYTE 5) Fanuc System alarm Description A RAM parity error occurred in the DRAM module. Replace the DRAM module.

Fanuc Alarm 916 DRAM PARITY : (BYTE 4) Fanuc System alarm Description A RAM parity error occurred in the DRAM module. Replace the DRAM module.

Fanuc Alarm 915 DRAM PARITY : (BYTE 3) Fanuc System alarm Description A RAM parity error occurred in the DRAM module. Replace the DRAM module.

Fanuc Alarm 914 DRAM PARITY : (BYTE 2) Fanuc System alarm Description A RAM parity error occurred in the DRAM module. Replace the DRAM module.

Fanuc Alarm 913 DRAM PARITY : (BYTE 1) Fanuc System alarm Description A RAM parity error occurred in the DRAM module. Replace the DRAM module.

Fanuc Alarm 912 DRAM PARITY : (BYTE 0) Fanuc System alarm Description A RAM parity error occurred in the DRAM module. Replace the DRAM module.