Omron NX-SL3300 User Manual page 93

2 Specifications
Color Status Meaning
--- Not lit An error has occurred in the safety input terminal.
Refer to 12-2-1 Troubleshooting the Main Errors in the Safety CPU Unit on page 12 - 3 for details
on the relationship between the errors of the Safety Input Unit and the indicators.
2
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NX-series Safety Control Unit User's Manual (Z930)