Mitsubishi Electric 600M Series Error SYW0001: External switch emergency stop

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

Error codeSYW0001

An external emergency stop input signal was received. (24V is not being applied to the CN23 connector.) The manual's first action is: “Examine the causes of the emergency stop, and remove them.”

Model
Mitsubishi Electric 600M Series
Display shows
External switch emergency stop (SYW0001)
Type
Error code
Source
Manual p. 496

What SYW0001 means

External switch emergency stop p. 496

Common causes

  • An external emergency stop input signal was received. (24V is not being applied to the CN23 connector.) p. 496

What to do

  1. Examine the causes of the emergency stop, and remove them. p. 496

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

If SYW0001 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 SYW0001; 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.