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Fanuc Servo Amplifier Alarm 401 - SERVO ALARM: n–TH AXIS VRDY OFF

FANUC Alarm Codes >> FANUC Servo Amplifier Alarms >> Servo Amplifier Alarm 401

Disclaimer: Attempting repairs yourself can be dangerous and can void your warranty. Contact us for support.

FANUC Servo Amplifier Alarm Codes 401, N-TH Axis VRDY Off

DescriptionRemedy
The n–th axis (axis 1–8) servo amplifier READY signal (DRDY) went off.
  1. Check the power supply to the servo amplifier to ensure it is stable and within the required voltage range.
  2. Inspect the connections between the servo amplifier and the CNC control unit for any loose or damaged cables.
  3. Verify the parameter settings related to the servo amplifier in the CNC control system.
  4. Check the diagnostic display for any additional error codes or messages related to the servo amplifier.
  5. If possible, try resetting the alarm and restarting the system to see if the issue resolves.
  6. Contact Tri Star for further support.

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Nationwide FANUC Servo Alarm 401 Troubleshooting, Repairs & Replacement Service

Give Tri Star CNC a call and we’ll help you determine the source of the FANUC servo 401 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.

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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.

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