Fanuc A06B Alarms and Faults

[zigmund]

Here is a handy list of Fanuc A06B Alarms and fault codes. They are  critical for any A06B troubleshooting. And they are applicable to: A06B-6079, A06B-6080, A06B-6089, A06B-6090, A06B-6096, A06B-6114, A06B-6117, and possibly some other Fanuc servo drives.

Alarm Code    Description of Fault

• 1 - Internal cooling fan stopped
  
• 2 - Control power supply under voltage
  
• 5 - DC link under voltage
  
• 6 - Overheat
  
• 8 - DC link current alarm (L axis)
  
• 8. - IPM alarm (L axis)
  
• 9    - DC link current alarm (M axis)
  
• 9. - IPM alarm (M axis)
  
• Blinking - abnormal control power supply
  
• A - DC Link Current alarm (N axis)
  
• A. - IPM alarm (N axis)
  
• b - DC Inverter: Control Command Failure
  
• c - DC Inverter: Control Command Failure
  
• d - DC Inverter: Control Command Failure
  
• F - cooling fan stopped of the radiator
  
• P - Communication error between amplifier and module
  
• U - FSSB communication error (COP10B)
  
• L - FSSB communication error (COP10A)
  

[zigmund]

I even transposed these into a Q&A style list, I don't know if this is beneficial or not, but here it is anyway. And what does the dot mean on the Fanuc display?

• What does Alarm 1 mean on Fanuc A06B? A: Internal cooling fan stopped
  
• What does Alarm 2 mean on Fanuc A06B? A: Control power supply under voltage
  
• What does Alarm 5 mean on Fanuc A06B? A: DC link under voltage
  
• ]What does Alarm 6 mean on Fanuc A06B? A: Overheat
  
• What does Alarm 8 mean on Fanuc A06B? A: DC link current alarm (L axis)
  
• What does Alarm 8. mean on Fanuc A06B? A: IPM alarm (L axis)
  
• What does Alarm 9 mean on Fanuc A06B? A: DC link current alarm (M axis)
  
• What does Alarm 9. mean on Fanuc A06B? A: IPM alarm (M axis)
  
• What does a Blinking Display mean on Fanuc A06B? A: abnormal control power supply
  
• What does Alarm A mean on Fanuc A06B? A: DC Link Current alarm (N axis)
  
• What does Alarm A. mean on Fanuc A06B? A: IPM alarm (N axis)
  
• What does Alarm b mean on Fanuc A06B? A: DC Inverter: Control Command Failure
  
• What does Alarm c mean on Fanuc A06B? A: DC Inverter: Control Command Failure
  
• What does Alarm d mean on Fanuc A06B? A: DC Inverter: Control Command Failure
  
• ]What does Alarm F mean on Fanuc A06B? A: cooling fan stopped of the radiator
  
• What does Alarm P mean on Fanuc A06B? A: Communication error between amplifier and module
  
• What does Alarm U mean on Fanuc A06B? A: FSSB communication error (COP10B)
  
• What does Alarm L mean on Fanuc A06B? A: FSSB communication error (COP10A)
  

[benklassne]

Nice work on the A06B Faults!