Fanuc Spindle Alarms for Troubleshooting

A06B-6079-H106

Alarm # Led Display Content of FANUC SPINDLE Alarms
8 4 2 1

1

o

Motor Overheat

2

o

Speed deviates from commanded speed

3

o

o

Regenerative fault

6

o

o

Excess Motor Speed Analog

7

o

o

o

Excess Motor Speed Digital

8

o

Voltage higher than specified

9

o

o

Radiator for power semiconductor overheat

10

o

o

+15Volt Supply is low

11

o

o

o

DC Link voltage is high

12

o

o

DC Link current is high

13

o

o

o

CPU and peripheral parts are defective

14

o

o

o

ROM is defective

Alarm List for A06B-6044-Hxxx

Alarm List for the following Drives:

Alarm # Led Display Content of Alarms
8 4 2 1

1

o

Motor Overheat

2

o

Speed deviates from commanded speed

3

o

o

Fuse F7in DC link is blown out.

4

o

Fuses F1,F2,F3 for AC input blown out.

5

o

o

Fuses AF2 or AF3 on PCB are blown out.

6

o

o

Excess Motor Speed Analog

7

o

o

o

Excess Motor Speed Digital

8

o

Voltage higher than specified (24v)

9

o

o

Radiator for power semiconductor overheat

10

o

o

+15Volt Supply is low

11

o

o

o

DC Link voltage is high

12

o

o

DC Link current is high

13

o

o

o

CPU and peripheral parts are defective

14

o

o

o

ROM is defective

15

o

o

o

o

Option circuit fault.

Digital AC Spindle Drive

Alarm List for A06B-6055-Hxxx

Alarm List for the following drives:

  • Model 3 thru 22    A06B-6055-Hxxx

 

Alarm Display Alarm Content

AL-01

Motor Overheated

AL-02

Speed deviates from commanded speed

AL-03

Fuse F7in DC link is blown out.

AL-04

Fuses F1,F2,F3 for AC input blown out.

AL-06

Excess Motor Speed Analog

AL-07

Excess Motor Speed Digital

AL-08

Voltage higher than specified (24v)

AL-09

Radiator for power semiconductor overheat

AL-10

+15v power supply is abnormally low

AL-11

DC Link voltage is high

AL-12

DC Link current is high

AL-13

Data memory for CPU abnormal

AL-16

RAM in NVRAM is abnormal

AL-17

ROM in NVRAM is abnormal

AL-18

Check sum alarm of ROM

AL-19

Excessive alarm of U phase current detection circuit offset

AL-20

Excessive alarm of V phase current detection circuit offset

AL-21

Excessive alarm of velocity command circuit offset.

AL-22

Excessive alarm of velocity detection circuit offset.

AL-23

Excessive alarm of ER circuit offset.

AL-14

ROM is abnormal

AL-15

Spindle selection control circuit is abnormal.

Alarm List for A06B-6059-Hxxx

Alarm List for the following drives:

  • Model 1S thru 3S   A06B-6059-Hxxx

 View Fanuc Spindle Amp Alarm Codes for Alpha Series here. 

Alarm # Meaning

AL-01

Motor Overheat

AL-02

Speed deviates from commanded speed

AL-03

24v Fuse is blown. (before PCB edition 09A)

AL-04

AL-05

AL-06

Excess Motor Speed Analog

AL-07

Excess Motor Speed Digital

AL-08

Over voltage

AL-09

Overheat of radiator

AL-10

Low voltage of input power.

AL-11

Excessive high voltage of DC link

AL-12

Abnormal current of DC link

AL-13-15

AL-16-23

Defective arithmetic circuit and peripheral circuit

No indication

Defective ROM

Alarm List for A06B-6059-Hxxx

Alarm List for the following drives:

  • Model 6S-26S    A06B-6059-Hxxx
Alarm # Meaning

AL-01

Motor Overheat

AL-02

Speed deviates from commanded speed

AL-03

24v Fuse is blown. (before PCB edition 09A)

AL-04

Open phase of input power.

AL-05

AL-06

Excess Motor Speed Analog

AL-07

Excess Motor Speed Digital

AL-08

Over voltage

AL-09

Overheat of radiator

AL-10

Low voltage of input power.

AL-11

Excessive high voltage of DC link

AL-12

Abnormal current of DC link

AL-13

Defective arithmetic circuit

AL-14

Defective ROM

AL-15

Defective optional circuit.

AL-16-23

Defective arithmetic circuit and peripheral circuit

No indication

Defective ROM

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