HB-37350-810-01-51F-EN SMX Installation manual.docx Page 96 of 234
Version: 50F
4.3.5.2 Wiring examples for safe digital outputs I/O's I/O’s (IQQx)
4.3.5.2.1 Wiring single-channel without testing
When using a two-channel output (IQQx) in connection with a single-channel external wiring
without external examination it must be taken into account that and adherence of one or several
external contacts of the SMX1x module is not recognized. The following circuitry example is only
suitable in a restrictive manner, maximally PL b according to EN ISO 13849-1 can be reached!
Fig.: Two-channel output with single-channel wiring without testing
Safety note:
• Not recommended for safety applications! In this context see also the notes in EN ISO
13849-1 concerning the application and the required fault exclusions.
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