FANUC Beta Servo A06B-6093 Series Alarms and Error Codes

The following alarm codes pertain to the Series 0-C (Servo Alarms). Knowing your error code could help us provide you with the fast and precise evaluation for repair or exchange services.

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Please contact us for free consultation about any of the following error codes, or any other problems with your FANUC units. Call 630-616-0039 or fill up a contact form.

Series 0-C Servo Alarms

AlarmDescription
309 Alarm2A pulse coder error.
309 Alarm4Pulse coder communication error.
400 Alarm1 bit7Overheat alarm (motor).
414 Alarm1 bit5Overload alarm( OVC).
414 Alarm1 bit3DC link over voltage alarm (LVDC).
414 Alarm1 bit6Low DC link voltage (LVDC).
414 Alarm1 bit2Over generative discharge alarm (DCOH).
414 Alarm1 bit4Over current alarm (HC).
416 Alarm1 bit1Feedback disconnected.
417Invalid servo parameter setting.

Series 16, 18, 20, and 21 Servo Alarms

Alarm No Description
350 Alarm3Pulse coder error.
350 Alarm3 bit 3Rotation speed data error.
351 Alarm4Pulse coder communication error.
400 Alarm1 bit7Motor overheat.
414 Alarm5 bit6Current conversion error.
414 Alarm1 bit5Overload alarm( OVC).
414 Alarm1 bit3DC link over voltage alarm (LVDC).
414 Alarm1 bit6Low DC link voltage (LVDC).
414 Alarm1 bit2Over generative discharge (DCOH).
414 Alarm1 bit4Over current (HC).
416 Alarm1 bit1Feedback disconnected.
417Invalid servo parameter setting.

FANUC Servo Amplifier Unit Alarms

TypeDescription
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.

FANUC Pulse Coder Alarms

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

Servo Amplifier Alarms

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

P/S Alarms

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

Request a Free Consultation

Please contact us for free consultation about any of the following error codes, or any other problems with your FANUC Beta Series units. Call 630-616-0039 or fill up a contact form.