FANUC Alarm Codes

Fanuc Alpha axis and spindle alarm codes

Alarms on Fanuc Alpha Servo Drive's

1 :internal fan stopped
2 :Low control power voltage alarm (LV)
3 :Low DC link voltage alarm (LVDC)
4 :Regenerative dis-charge control circuit failure alarm (DCSW)
5 :Over-regenerative discharge alarm (DCOH)
6 :L-and M-axis over-current alarm (HCM)
6. :L-and M-axis IPM alarm (IPMLM)
7 :Dynamic brake circuit failure alarm (DBRLY)
8 :L-axis over-current alarm (HCL)
8. :L-axis IPM alarm (IPML)
9 :M-axis over-current alarm (HCM)
9. :M-axis IPM alarm (IPML)

Alarms on Fanuc Alpha Spindle Drive's

AL-01 : MOTOR OVERHEAT
AL-02 : EX SPEED ERROR
AL-03 : FUSE ON DC LINK BLOWN
AL-04 : INPUT FUSE/POWER FAULT
AL-05 : POWER SUPPLY FUSE BLOWN
AL-07 : OVERSPEED
AL-08 : HIGH VOLT IN-PUT POWER
AL-09 : OVERHEAT MAIN CIRCUIT
AL-10 : LOW VOLT IN-PUT POWER
AL-11 : OVERVOLT POW CIRCUIT
AL-12 : OVERCUR-RENT POW CIRCUIT
AL-13 : DATA MEMORY FAULT CPU
AL-15 : SP SWITCH CONTROL ALARM
AL-16 : RAM FAULT
AL-18 : SUMCHECK ERROR PGM DATA
AL-19 : EX OFFSET CURRENT U
AL-20 : EX OFFSET CURRENT V
AL-24 : SERIAL TRANSFER ERROR
AL-25 : SERIAL TRANSFER STOP
AL-26 : DISCONNECT C VELO DETECT
AL-27 : DISCONNECT POS-CODER
AL-28 : DISCONNECT C-POS DE-TECT
AL-29 : SHORTTIME OVERLOAD
AL-30 : OVERCURRENT POW CIRCUIT
AL-31 : MOTOR LOCK OR V-SIG LOS
AL-32 : RAM FAULT SERIAL LSI
AL-33 : SHORTAGE POWER CHARGE
AL-34 : PARAMETER SETTING ERROR
AL-35 : EX SETTING GEAR RATIO
AL-36 : OVERFLOW ERROR COUNTER
AL-37 : SPEED DETECT PAR. ERROR
AL-39 : 1-ROT Cs SIGNAL ERROR
AL-40 : NO 1 ROT Cs SIGNAL DETECT
AL-41 : 1-ROT POSCODER ERROR
AL-42 : NO 1-ROT. POSCODER DETECT
AL-43 : DISCON. PC FOR DIF. SP. MOD.
AL-44 : CONTROL CIRCUIT(AD) ERROR
AL-46 : SCREW 1-ROT POSCOD. ALARM
AL-47 : POS-CODER SIGNAL AB-NORMAL
AL-49 : HIGH CONV. DIF. SPEED
AL-50 : SPNDL CON-TROL OVER-SPEED
AL-51 : LOW VOLT DC LINK
AL-52 : ITP SIGNAL ABNORMAL I
AL-53 : ITP SIGNAL ABNORMAL II
AL-56 : INNER COOLING FAN STOP
AL-57 : EX DECEL-ERATION POWER
AL-58 : OVERLOAD IN PSM
AL-59 : COOLING FAN STOP IN PSM