Mitsubishi Electric 600M Series Error SYW0009: RIO4 communication error

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

Error codeSYW0009

RIO4 communication error occurs when the emergency stop signal from the remote IO unit (R104) is detected due to a disconnected communication cable. The manual's first action is: “Check and remove the cause of the remote IO unit emergency stop.”

Model
Mitsubishi Electric 600M Series
Display shows
RIO4 communication error (SYW0009)
Type
Error code
Source
Manual p. 496

What SYW0009 means

RIO4 communication error p. 496

Common causes

  • The emergency stop input signal was input from the remote IO unit (R104). The communication cable with the remote IC unit (R104) is disconnected. p. 496

What to do

  1. Check and remove the cause of the remote IO unit emergency stop. p. 496
  2. Check the cable connection. p. 496

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

If SYW0009 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 496 All 600M Series error codes Manual details & download

This page summarises what the manufacturer’s manual says about SYW0009; 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.