{"id":19671,"date":"2024-03-01T12:05:17","date_gmt":"2024-03-01T10:05:17","guid":{"rendered":"https:\/\/www.clearsy.com\/?post_type=references&#038;p=19671"},"modified":"2024-03-26T12:59:12","modified_gmt":"2024-03-26T10:59:12","slug":"safety-relay-vital-relay-rs4-automatic-landing-door-control-systems","status":"publish","type":"references","link":"https:\/\/www.clearsy.com\/en\/references\/safety-relay-vital-relay-rs4-automatic-landing-door-control-systems\/","title":{"rendered":"SAFETY RELAY \u2013 VITAL RELAY RS4: Automatic landing door control systems"},"content":{"rendered":"<p>RS4 safety critical relays (also qualified as vital) are used to drive the \u201cClosed and Locked\u201d safety signal in interface with each Door Control Unit (DCU) of the platform gate. This electric circuitry makes a safety \u2018AND\u2019 between each platform screen door and consolidate the \u201cClosed and locked status\u201d at platform level. This status is linked with a signal seen bay the driver who lets train depart from the station once all platform doors are physically closed and locked.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>RS4 safety critical relays (also qualified as vital) are used to drive the \u201cClosed and Locked\u201d safety signal in interface [&hellip;]<\/p>\n","protected":false},"featured_media":19583,"template":"","secteur":[],"domaines_references":[696,693],"class_list":["post-19671","references","type-references","status-publish","has-post-thumbnail","hentry","domaines_references-nuclear-energy","domaines_references-railway"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>SAFETY RELAY \u2013 VITAL RELAY RS4: Automatic landing door control systems - CLEARSY<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.clearsy.com\/en\/references\/safety-relay-vital-relay-rs4-automatic-landing-door-control-systems\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"SAFETY RELAY \u2013 VITAL RELAY RS4: Automatic landing door control systems - 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