Application manual for YRB-4EML-31S safety relay
Contrinex AG Industrial Electronics
6
4.2.1
YRB-4EML-31S up to PL e/SIL 3 ..................................................................................................... 28
4.3
Movable guards ..................................................................................................................................... 30
4.3.1
YRB-4EML-31S up to PL d/SIL 2 ..................................................................................................... 31
4.6 Contact extension/forcibly guided contacts .......................................................................................... 33
A
Appendix for document lists ......................................................................................................................... 34
A 1 Explanation of terms .................................................................................................................................. 34
A 1 Case studies – connection to a PLC ........................................................................................................... 36
