Fanuc Beta I Servo Unit Alarms and Error Codes.

These Fanuc Beta I Servo Unit Alarms relate to the A06B-6130 & A06B-6132 Series. Please contact us if you need testing, a repair or an exchange part. For further information please visit our dedicated Fanuc Beta I Servo Unit Page.

Servo Amplifier Module Alarms

Alarm CodeLED
Description of Alarm/Error
Converter: DC link undervoltageONVoltage drop at the DC link in the main circuit.
Converter: DC link overvoltageONVoltage rise at the DC link in the main circuit.
Converter: Excessive deceleration powerONToo large or abnormal regenerative discharge amount.
Converter: Control power supply undervoltageON
  • Drop in external control power supply
  • Connector/cable defective
  • SVM failure
Inverter: Internal cooling fan stoppedON
  • Fan not running
  • Fan motor connector or cable defective
  • SVM failure
Inverter: Internal cooling fan stopped of the radiatorON
  • Fan not running
  • Fan motor connector or cable defective
  • SVM failure
Inverter: IPM alarmON
  • Short circuit between power lead phases or ground fault in them
  • Short circuit between motor winding phases or ground fault in them
  • SVM failure
Inverter: IPM alarm (OH)ON
  • The motor is being used under a harsh condition
  • The ambient temperature is high
  • SVM failure
Inverter: Motor current alarmON
  • Short circuit between power lead phases or ground fault in them
  • Short circuit between motor winding phases or ground fault in them
  • Incorrect motor ID setting
  • SVM or motor failure
Inverter: FSSB communication errorON
  • Connector or cable failure
  • SVM or CNC failure

 

Servo Alarm For Series 15i

Alarm CodeDescription
SV0027Invalid digital servo parameter setting
SV0361Pulsecoder phase error ( built in)
SV0364Soft phase alarm (built in)
SV0365LED error ( built in)
SV0366Pulse error (built in)
SV0367Count error (built in)
SV0368Serial data error (built in)
SV0369Data transfer error ( built in)
SV0380LED error ( separate)
SV0381Pulsecoder phase error (separate)
SV0382Count error ( separate)
SV0383Pulse error (separate)
SV0384Soft phase alarm (separate)
SV0385 Serial data error (separate)
SV0386Data transfer error (separate)
SV0387Sensor error(separate)
SV0421Excessive semi full error
SV0430Servo motor overheat
SV0432Converter: control power supply undervoltage

 

SV0433Converter: DC Link undervoltage
SV0436Soft thermal (OVC)
SV0438Inverter: motor current alarm
SV0439Converter: DC link overvoltage
SV0440Converter: Excessive deceleration power
SV0441Current offset error
SV0444Inverter: internal cooling fan stopped
SV0445Soft disconnection alarm
SV0447Hard disconnection alarm (separate)
SV0448Feedback mismatch alarm
SV0449Inverter: IPM alarm
SV0601Inverter: cooling fan stopped of the radiator
SV0603Inverter: IPM alarm (OH)

 

Servo Alarm For Series 16i, 18i, 20i, 21i, 0i and Power Mate i. 

Alarm CodeDescription
361Pulsecoder phase error ( built in)
364Soft phase alarm ( built in)
365LED error ( built in)
366Pulse error (built in)
367Count error (built in)
368Serial data error (built in)
369Data transfer error ( built in)
380LED error (separate)
381Pulsecoder phase error ( separate)
382Count error ( separate)
383Pulse error ( separate)
384Soft phase alarm (separate)
385Serial data error ( separate)
386Data transfer error (separate)
387Sensor error (separate)
417Invalid parameter
421Excessive semi full error
430Servo motor overheat
432Converter: Control undervoltage
433Converter: DC link undervoltage
436Soft thermal (OVC)
438Inverter: motor current alarm
439Converter: DC link overvoltage
440Converter: excessive deceleration power
441Current offset error
444Inverter: internal cooling fan stopped
445Soft disconnection alarm
447Hard disconnection alarm (a Pulsecoder)
448Feedback mismatch alarm
449Inverter : IPM alarm
453Soft disconnection alarm ( a Pulsecoder)
601Inverter: cooling fan stopped of the radiator
603Inverter: IPM alarm (OH)