Mitsubishi Electric 600M Series Error SYW0005: PLC emergency stop

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

Error codeSYW0005

The user PLC (ladder sequence) is not running. This error also occurs when an error occurs in the data communication with the remote I/O. The manual's first action is: “Turn ON the PLC ladder RUN switch on the CPU Card. (Second switch from the top of the QX... DIP switches.)”

Model
Mitsubishi Electric 600M Series
Display shows
PLC emergency stop (SYW0005)
Type
Error code
Source
Manual p. 496

What SYW0005 means

PLC emergency stop p. 496

Common causes

  • The user PLC (ladder sequence) is not running. This error also occurs when an error occurs in the data communication with the remote I/O. p. 496

What to do

  1. Turn ON the PLC ladder RUN switch on the CPU Card. (Second switch from the top of the QX... DIP switches.) p. 496
  2. Check whether there is an abnormality in the connection between the NC main unit and remote IO unit. p. 496

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

If SYW0005 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 SYW0005; 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.