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{{PiFace2-Manuel-NAV}}
{{PiFace2-Manuel-NAV}}
{{traduction}}
{{traduction}}
PiFace Digital 2 has two changeover relays in parallel with the first two outputs. Each relay is connected to three black screw terminals. The pins’ functions are shown in the diagram below and are labelled on the underside of the PiFace Digital 2.
* NC - '''N'''ormally '''C'''losed contact
* CO - '''CO'''mmon contact
* NO - '''N'''ormally '''O'''pen contact
The NC and CO contacts are electrically connected until the relay is activated, at which point CO changes over to be connected to NO.
[[Fichier:PiFace2-Manuel-Relais-00.jpg]]
The relays may be disabled by removing the appropriate jumper (JP5 and JP6) as detailed in Jumper settings.
[[Fichier:PiFace2-Manuel-Relais-01.jpg]]
{{PiFace2-Manuel-TRAILER}}
{{PiFace2-Manuel-TRAILER}}