Fanuc alarm: 404 - SERVO ALARM: n-TH AXIS VRDY ON

CNC Machine Control Manufacturer
Fanuc
Control Model
16/18/21, 16i/18i/21i, 160i/180i/210i, , 0i
404 - SERVO ALARM: n-TH AXIS VRDY ON

Alarm Description

Even though the n-th axis (axis 1-8) READY signal (MCON) went off, the servo amplifier READY signal (DRDY) is still on. Or, when the power was turned on, DRDY went on even though MCON was off. Check that the servo interface module and servo amp are connected.

Additional Suggestions & Alarm Clarification

None currently

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