Fanuc Alarms

Fanuc Alarm 464 n AXIS : WRITE ID DATA FAILED Fanuc Servo Alarm Description An attempt was made to write maintenance information on the amplifier maintenance screen, but it failed.

Fanuc Alarm 463 n AXIS : SEND SLAVE DATA FAILED Fanuc Servo Alarm Description Because of an FSSB communication error, the servo system could not receive correct data.

Fanuc Alarm 462 n AXIS : SEND CNC DATA FAILED Fanuc Servo Alarm Description Because of an FSSB communication error, a slave could not receive correct data.

Fanuc Alarm 461 n AXIS : ILLEGAL AMP INTERFACE Fanuc Servo Alarm Description The axes of the 2–axis amplifier were assigned to the fast type interface.

Fanuc Alarm 460 n AXIS : FSSB DISCONNECT Fanuc Servo Alarm Description FSSB communication was disconnected suddenly. The possible causes are as follows: 1) The FSSB communication cable was disconnected…

Fanuc Alarm 459 n AXIS : HI HRV SETTING ERROR Fanuc Servo Alarm Description In a pair of axes in which one axis has an odd servo axis number (parameter…

Fanuc Alarm 458 n AXIS : CURRENT LOOP ERROR Fanuc Servo Alarm Description The specified current control period dose not match the actual current control period.

Fanuc Alarm 457 n AXIS : ILLEGAL HI HRV (250US) Fanuc Servo Alarm Description It is specified that, when the current control period is 250 ms, high–speed HRV control is…

Fanuc Alarm 456 n AXIS : ILLEGAL CURRENT LOOP Fanuc Servo Alarm Description An illegal current control period was specified. The amplifier pulse module in use does not match high–speed…

Fanuc Alarm 453 n AXIS : SPC SOFT DISCONNECT ALARM Fanuc Servo Alarm Description Software disconnection alarm of the α pulse coder. Turn off the power to the CNC, then…

Fanuc Alarm 449 n AXIS : INV. IPM ALARM Fanuc Servo Alarm Description 1) SVM: IPM (intelligent power module) detected an alarm. 2) α series SVU: IPM (intelligent power module)…

Fanuc Alarm 448 n AXIS : UNMATCHED FEEDBACK ALARM Fanuc Servo Alarm Description The sign of feedback data from the built–in pulse coder differs from that of feedback data from…

Fanuc Alarm 447 n AXIS : HARD DISCONNECT (EXT) Fanuc Servo Alarm Description A broken wire in the separate detector was detected by hardware.

Fanuc Alarm 446 n AXIS : HARD DISCONNECT ALARM Fanuc Servo Alarm Description A broken wire in the built–in pulse coder was detected by hardware.

Fanuc Alarm 445 n AXIS : SOFT DISCONNECT ALARM Fanuc Servo Alarm Description The digital servo software detected a broken wire in the pulse coder.

Fanuc Alarm 444 n AXIS : INV. COOLING FAN FAILURE Fanuc Servo Alarm Description SVM: The internal stirring fan failed.

Fanuc Alarm 443 n AXIS : CNV. COOLING FAN FAILURE Fanuc Servo Alarm Description 1) PSM: The internal stirring fan failed. 2) PSMR: The internal stirring fan failed. 3) β…

Fanuc Alarm 442 n AXIS : CNV. CHARGE FAILURE Fanuc Servo Alarm Description 1) PSM: The spare discharge circuit of the DC link is abnormal. 2) PSMR: The spare discharge…

Fanuc Alarm 441 n AXIS : ABNORMAL CURRENT OFFSET Fanuc Servo Alarm Description The digital servo software detected an abnormality in the motor current detection circuit.

Fanuc Alarm 440 n AXIS : CNV. EX DECELERATION POW. Fanuc Servo Alarm Description 1) PSMR: The regenerative discharge amount is too large. 2) α series SVU: The regenerative discharge…

Fanuc Alarm 439 n AXIS : CNV. OVER VOLT DC LINK Fanuc Servo Alarm Description 1) PSM: The DC link voltage is too high. 2) PSMR: The DC link voltage…

Fanuc Alarm 438 n AXIS : INV. ABNORMAL CURRENT Fanuc Servo Alarm Description 1) SVM: The motor current is too high. 2) α series SVU: The motor current is too…

Fanuc Alarm 437 n AXIS : CNV. OVERCURRENT POWER Fanuc Servo Alarm Description PSM: Overcurrent flowed into the input circuit.

Fanuc Alarm 436 n AXIS : SOFTTHERMAL (OVC) Fanuc Servo Alarm Description The digital servo software detected the soft thermal state (OVC).

Fanuc Alarm 435 n AXIS : INV. LOW VOLT DC LINK Fanuc Servo Alarm Description SVM: The DC link voltage has dropped.

Fanuc Alarm 434 n AXIS : INV. LOW VOLT CONTROL Fanuc Servo Alarm Description SVM: The control power supply voltage has dropped.

Fanuc Alarm 433 n AXIS : CNV. LOW VOLT DC LINK Fanuc Servo Alarm Description 1) PSM: The DC link voltage has dropped. 2) PSMR: The DC link voltage has…

Fanuc Alarm 432 n AXIS : CNV. LOW VOLT CONTROL Fanuc Servo Alarm Description 1) PSMR: The control power supply voltage has dropped. 2) α series SVU: The control power…

Fanuc Alarm 431 n AXIS : CNV. OVERLOAD Fanuc Servo Alarm Description 1) PSM: Overheat occurred. 2) β series SVU: Overheat occurred.

Fanuc Alarm 430 n AXIS : SV. MOTOR OVERHEAT Fanuc Servo Alarm Description A servo motor overheat occurred.

Fanuc Alarm 423 SERVO ALARM: n AXIS Fanuc Servo Alarm Description In torque control of PMC axis control, the parameter–set allowable cumulative travel distance has been exceeded.

Fanuc Alarm 422 SERVO ALARM: n AXIS Fanuc Servo Alarm Description In torque control of PMC axis control, a specified allowable speed has been exceeded.

Fanuc Alarm 421 SERVO ALARM: n AXIS EXCESS ER (D) Fanuc Servo Alarm Description The difference between the errors in the semi–closed loop and closed loop has become excessive during…

Fanuc Alarm 420 SERVO ALARM: n AXIS SYNC TORQUE (M series) Fanuc Servo Alarm Description During simple synchronous control, the difference between the torque commands for the master and slave…

Fanuc Alarm 417 SERVO ALARM: n–TH AXIS – PARAMETER INCORRECT Fanuc Servo Alarm Description This alarm occurs when the n–th axis (axis 1–8) is in one of the conditions listed…