FANUC Beta Servo Amplifier Unit Alarms and Error Codes

Alarms and Error Codes

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.

Request a Free Consultation

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

Alarm	Description
309 Alarm2	A pulse coder error.
309 Alarm4	Pulse coder communication error.
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.
417	Invalid servo parameter setting.

Series 16, 18, 20, and 21 Servo Alarms

Alarm No	Description
350 Alarm3	Pulse coder error.
350 Alarm3 bit 3	Rotation speed data error.
351 Alarm4	Pulse coder communication error.
400 Alarm1 bit7	Motor overheat.
414 Alarm5 bit6	Current conversion error.
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 (DCOH).
414 Alarm1 bit4	Over current (HC).
416 Alarm1 bit1	Feedback disconnected.
417	Invalid servo parameter setting.

FANUC Servo Amplifier Unit Alarms

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.

FANUC Pulse Coder Alarms

Alarm Code	Description
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
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.

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.