12-1
How to Check for Errors
You can check to see if an error has occurred in the Safety Control Units with the following methods.
Checking method What you can check
Checking the Indicators Operating status of the NJ/NX-series CPU Unit, Safety CPU Unit, and Safe-
ty I/O Units
Checking with the Troubleshoot-
ing Function of the Sysmac Stu-
dio
Current errors in the Safety CPU Unit and Safety I/O Units, error logs in the
Safety CPU Unit and Safety I/O Units, and the sources, causes, and correc-
tions for errors
12 Troubleshooting
12 - 2
NX-series Safety Control Unit User's Manual (Z930)