SMC Networks LECSN-T Series - Page 385

13. USING STO FUNCTION
13 - 1
13. USING STO FUNCTION ...........................................................................................................................2
13.1 Introduction ...........................................................................................................................................2
13.1.1 Summary .........................................................................................................................................2
13.1.2 Terms related to safety ...................................................................................................................2
13.1.3 Cautions ...........................................................................................................................................2
13.1.4 Residual risks of the STO function ................................................................................................3
13.1.5 Specifications ...................................................................................................................................4
13.1.6 Maintenance ....................................................................................................................................5
13.2 STO I/O signal connector (CN8) and signal layouts ............................................................................5
13.2.1 Signal layouts ..................................................................................................................................5
13.2.2 Signal (device) explanations ...........................................................................................................6
13.2.3 How to pull out the STO cable .......................................................................................................6
13.3 Connection example ..............................................................................................................................7
13.3.1 Connection example for CN8 connector ........................................................................................7
13.3.2 External I/O signal connection example using an MR-J3-D05 safety logic unit of Mitsubishi
Electric Corporation ...................................................................................................................................8
13.3.3 External I/O signal connection example using an external safety relay unit ...........................10
13.4 Detailed description of interfaces .......................................................................................................11
13.4.1 Sink I/O interface ..........................................................................................................................11
13.4.2 Source I/O interface ......................................................................................................................13