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

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

Fanuc Control Model: 16 / 18 / 21-Series, 16i/18i/21i and 30i/31i/32i series

Fanuc Alarm Description

The n–th axis (axis 1–8) servo amplifier READY signal (DRDY) went off. Refer to procedure of trouble shooting.


Have you faced Fanuc Alarm 401 SERVO ALARM: n–TH AXIS VRDY OFF on your machine? Share your experience or troubleshooting tips in the comments below to help other CNC operators and programmers clear this error faster!

 

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