BETA SVU Alarms

Fanuc Beta Servo Unit Alarms and Error Codes.

Fanuc Beta Servo Unit Alarms. These alarm and error codes cover the A06B-6093 series.

Please contact us if you need testing, a repair or an exchange part. For further information please visit our dedicated Fanuc Beta Servo Unit  Page.

Alarm number in Series 0-C (Servo Alarms)

Alarm No  Description
309 Alarm2 a pulse coder error alarm
309 Alarm4 Pulse coder communication error alarm
400 Alarm1 bit7 Overheat alarm (motor)
414 Alarm1 bit5 Overload alarm( OVC)
414 Alarm1 bit3 DC link over voltage alarm (LVDC)
414 Alarm1 bit6 Low DC link voltage (LVDC)
414 Alarm1 bit2 Over generative discharge alarm (DCOH)
414 Alarm1 bit4 Over current alarm (HC)
416 Alarm1 bit1 Feedback disconnected alarm
417 Invalid servo parameter setting alarm

 

Alarm number in Series 16, 18, 20, 21 (Servo Alarms)

Alarm No  Description
350 Alarm3 a pulse coder error alarm
350 Alarm3 bit 3 Rotation speed data error alarm
351 Alarm4 Pulse coder communication error alarm
400 Alarm1 bit7 Overheat alarm (motor)
414 Alarm5 bit6 Current conversion error alarm
414 Alarm1 bit5 Overload alarm( OVC)
414 Alarm1 bit3 DC link over voltage alarm (LVDC)
414 Alarm1 bit6 Low DC link voltage (LVDC)
414 Alarm1 bit2 Over generative discharge alarm (DCOH)
414 Alarm1 bit4 Over current alarm (HC)
416 Alarm1 bit1 Feedback disconnected alarm
417 Invalid servo parameter setting alarm

 

Servo Amplifier Unit Alarms

If alarm condition related to the servo amplifier unit occurs, the alarm indicator on the amplifier front panel is lit. Check the description of alarm at servo tuning screen.

Type Description
Over voltage alarm (HV) This alarm occurs if the DC voltage of the main circuit power supply is abnormally high
Low DC link voltage alarm (LVDC) This alarm occurs if the DC voltage of the voltage main circuit power supply is abnormally low or the outer circuit breaker trips
Over regenerative discharge alarm ( DCOH) This alarm occurs if:

The average regenerative discharge energy is too high.

Overheat Alarm (OH) This alarm occurs if the temperature of the amplifier is abnormally high
Fan Alarm  (FAL) The fan, built into the servo amplifier unit has stopped
Over current alarm (HC) This alarm occurs if an abnormally over current flows in servo amplifier unit

 

Pulse Coder Alarms

Alarm Code Description of Alarm/Error
360  n  axis: abnormal checksum (int)
361  n  axis: abnormal phase  data (int)
362  n  axis: abnormal rev.data  (int)
363  n  axis: abnormal clock  (int)
364  n  axis: soft phase alarm (int)
365  n  axis: broken LED (int)
366  n  axis: pulse miss  (int)
367  n  axis: count miss  (int)
368  n  axis: serial data error (int)
369  n  axis:  data trans.error (int)
380  n  axis: broken LED  (ext)
381  n  axis: abnormal phase (ext lin)
382  n  axis: count miss (ext)
383  n  axis: pulse miss (ext)
384  n  axis: soft phase alarm (ext)
385  n  axis: serial data error (ext)
386  n  axis: data trans. error (ext)

Servo Amplifier Alarms

Alarm Code Description of Alarm/Error
430 n axis: servo motor overheat
431 n axis: cnv. overload (OH)
432 n axis: cnv. lowvolt con./powfault (LV)
433 n axis: cnv. low volt DC link (DCLV)
436 n axis: softthermal (OVC)
438 n axis: inv. abnormal current (HC)
439 n axis: overvolt power (HV)
440 n axis: cnv.ex deceleration pow. (DCOH)
441 n axis: abnormal current offset
443 n axis: cnv. cooling fan failure (FAL)
445 n axis: soft disconnection alarm
446 n axis: hard disconnection alarm
447 n axis: hard disconnection (ext)
448 n axis: unmatched feedback alarm
460 n axis: FSSB disconnection
461 n axis: illegal amp interface
462 n axis: send CNC data failed
463 n axis: send slave data failed
464 n axis: write ID data failed
465 n axis: read ID data failed
466 n axis: motor/ amp combination
467 n axis: illegal setting of axis

 

P/S Alarms

Alarm Code Description of Alarm/Error
5134 FSSB: open ready time out
5135 FSSB: error mode
5136 FSSB: number of amp is small
5137 FSSB: configuration error
5138 FSSB: axis setting not complete
5197 FSSB: open time out
5198 FSSB: ID data not read