Chapter 14 
283 
Troubleshooting 
14 Troubleshooting 
 
In case of an error please refer to the Safety Controller User’s Manual. There you 
will find a list of LED error displays, error codes, error causes and rectification 
measures. 
Error codes and error messages can also be displayed in the Diagnostics view if 
you are connected to the MELSEC-WS safety controller. For more information on 
how to perform diagnostics, see Section 5.8.