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Fanuc Servo Amplifier Alarm 421 - SERVO ALARM: n AXIS EXCESS ER (D)

FANUC Servo Amplifier Alarm Code 421: N Axis Excess ER (D)

FANUC Alarm Codes >> FANUC Servo Amplifier Alarms >> Servo Amplifier Alarm 421

Description: The difference between the errors in the semi–closed loop and closed loop has become excessive during dual position feedback. Check the values of the dual position conversion coefficients in parameters No. 2078 and 2079.

 


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Nationwide FANUC Servo Alarm 421 Troubleshooting, Repairs & Replacement Service

Give Tri Star CNC a call and we’ll help you determine the source of the FANUC servo 421 error and find solutions ASAP. We offer FREE phone support (call 815-578-9145 now), competitive repair pricing, or quick turnaround on a replacement component from our exchange stock if necessary. If you need on-site support we can point you in the right direction through our field service network.

FANUC-GE Parts Exchange & Repair Warranty Information

Exchange FANUC parts and repaired parts include a 1-year warranty. Tri Star CNC, LLC warrants the COMPLETE ASSEMBLY REPAIR – not just the parts and labor.

Get more details on our FANUC warranty and please contact us for further CNC machine support.

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