Mitsubishi Electric 600M Series Error AY0021: Aux axis commu err: Ax No/type illegal

CNC milling machine · taken from the manufacturer’s manual, pages cited

Error codeAY0021

There is an error in the communication between the NC and amplifier. The manual's first action is: “Check whether there is any abnormality in the following : • Cable (Are there any broken wires?) • Cable shield ground • Connector connections • Mounting state of the amplifier Contact the nearest service center.”

Model
Mitsubishi Electric 600M Series
Display shows
Aux axis commu err: Ax No/type illegal (AY0021)
Type
Error code
Source
Manual p. 495

What AY0021 means

Aux axis commu err: Ax No/type illegal p. 495

Common causes

  • There is an error in the communication between the NC and amplifier. p. 495

What to do

  1. Check whether there is any abnormality in the following : • Cable (Are there any broken wires?) • Cable shield ground • Connector connections • Mounting state of the amplifier Contact the nearest service center. p. 495

Before you service the product, read the safety instructions in the manual p. 4.

If AY0021 is still not resolved

  • contact service / dealer p. 5
    “Do not change the fixed cycle program without prior consent from the machine manufacturer.”
  • contact service / dealer p. 5
    “Do not turn OFF the NC a”
Open the manual at page 495 All 600M Series error codes Manual details & download

This page summarises what the manufacturer’s manual says about AY0021; each statement links to the page it comes from, and quoted lines are copied word for word. It is not a substitute for the manual or for a qualified installer. ManualLib is not affiliated with Mitsubishi Electric. Found a mistake? Report an error.