Mitsubishi Electric 600M Series Error SY0020: SV initial communication error

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

Error codeSY0020

An error occurred during the initial communication with the servo system. The manual's first action is: “Check the servo/spindle amplifier setting, connection, axis No. in the spindle specification parameters, "No amp" of the axis specification parameters, etc.”

Model
Mitsubishi Electric 600M Series
Display shows
SV initial communication error (SY0020)
Type
Error code
Source
Manual p. 466

What SY0020 means

SV initial communication error p. 466

Common causes

  • An error occurred during the servo initial communication. p. 466

What to do

  1. Check the servo/spindle amplifier setting, connection, axis No. in the spindle specification parameters, "No amp" of the axis specification parameters, etc. p. 466

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

If SY0020 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 466 All 600M Series error codes Manual details & download

This page summarises what the manufacturer’s manual says about SY0020; 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.