{"id":18983,"date":"2025-11-03T09:48:26","date_gmt":"2025-11-03T01:48:26","guid":{"rendered":"https:\/\/lorentzzi.com\/?p=18983"},"modified":"2025-11-03T15:38:03","modified_gmt":"2025-11-03T07:38:03","slug":"single-output-vs-dual-output-safety-light-curtains-which-is-better","status":"publish","type":"post","link":"https:\/\/lorentzzi.com\/fr\/single-output-vs-dual-output-safety-light-curtains-which-is-better\/","title":{"rendered":"Barri\u00e8res immat\u00e9rielles de s\u00e9curit\u00e9 \u00e0 simple ou double sortie : Quelle est la meilleure solution ?"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"18983\" class=\"elementor elementor-18983\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-38f7b2c e-flex e-con-boxed e-con e-parent\" data-id=\"38f7b2c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-9ea598c elementor-widget elementor-widget-text-editor\" data-id=\"9ea598c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Imaginez la situation suivante : Vous \u00eates \u00e0 la recherche d'un <\/span><span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/lorentzzi.com\/fr\/safety-light-curtain-sensor\/\"><span style=\"font-weight: 400;\">rideau lumineux de s\u00e9curit\u00e9<\/span><\/a><\/span><span style=\"font-weight: 400;\"> pour prot\u00e9ger vos travailleurs des machines dangereuses, mais lorsque vous cherchez des fournisseurs, ils vous disent qu'il en existe deux types : \u00e0 sortie unique et \u00e0 double sortie.<\/span><\/p><p><span style=\"font-weight: 400;\">Comment choisir ? Quelles sont les diff\u00e9rences entre ces deux types ? Lequel est le plus adapt\u00e9 ? Cet article r\u00e9pondra \u00e0 ces questions une \u00e0 une.<\/span><\/p><p><span style=\"font-weight: 400;\">Continuons !<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c3eb400 elementor-widget elementor-widget-heading\" data-id=\"c3eb400\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Qu'est-ce qu'une barri\u00e8re immat\u00e9rielle de s\u00e9curit\u00e9 \u00e0 sortie unique ?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-13c562e elementor-widget elementor-widget-image\" data-id=\"13c562e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"512\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/11\/PNP-single-outoput-safety-light-curtain-wiring-diagram.jpg\" class=\"attachment-large size-large wp-image-18980\" alt=\"Sch\u00e9ma de c\u00e2blage du rideau lumineux de s\u00e9curit\u00e9 PNP \u00e0 sortie unique\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/11\/PNP-single-outoput-safety-light-curtain-wiring-diagram.jpg 1024w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/11\/PNP-single-outoput-safety-light-curtain-wiring-diagram-300x150.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/11\/PNP-single-outoput-safety-light-curtain-wiring-diagram-768x384.jpg 768w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/11\/PNP-single-outoput-safety-light-curtain-wiring-diagram-18x9.jpg 18w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/11\/PNP-single-outoput-safety-light-curtain-wiring-diagram-600x300.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/11\/PNP-single-outoput-safety-light-curtain-wiring-diagram-64x32.jpg 64w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-283de73 elementor-widget elementor-widget-text-editor\" data-id=\"283de73\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Pour mieux comprendre les diff\u00e9rences entre les barri\u00e8res immat\u00e9rielles de s\u00e9curit\u00e9 \u00e0 sortie unique et \u00e0 double sortie, il convient tout d'abord de clarifier leurs d\u00e9finitions et leur mode de fonctionnement.<\/span><\/p><p><span style=\"font-weight: 400;\">Une barri\u00e8re immat\u00e9rielle de s\u00e9curit\u00e9 \u00e0 sortie unique, comme son nom l'indique, ne poss\u00e8de qu'un seul canal de signal de s\u00e9curit\u00e9 ind\u00e9pendant. Elle prend g\u00e9n\u00e9ralement en charge un seul type de sortie, qui peut \u00eatre un transistor PNP ou NPN, ou un relais sans tension.<\/span><\/p><p><span style=\"font-weight: 400;\">Prenons maintenant l'exemple du rideau lumineux de s\u00e9curit\u00e9 PNP \u00e0 un canal normalement ferm\u00e9 (NC) le plus couramment utilis\u00e9, afin d'expliquer son fonctionnement :<\/span><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Lorsque les faisceaux lumineux infrarouges (Remarque : les faisceaux lumineux sont les principaux composants de la barri\u00e8re immat\u00e9rielle de s\u00e9curit\u00e9, ils peuvent former une barri\u00e8re lumineuse pour d\u00e9tecter une entr\u00e9e depuis l'ext\u00e9rieur) ne sont pas bloqu\u00e9s (\u00e9tat normal), la barri\u00e8re immat\u00e9rielle de s\u00e9curit\u00e9 maintient une sortie active. Un signal de tension (par exemple, 24V DC pour PNP) est pr\u00e9sent entre le fil de sortie (g\u00e9n\u00e9ralement noir ou marron, selon le fabricant) et la borne n\u00e9gative, ce qui maintient l'\u00e9tat \u201cnormalement ferm\u00e9\u201d.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Lorsque le faisceau de lumi\u00e8re infrarouge est bloqu\u00e9 (intrusion d\u00e9tect\u00e9e), la sortie se d\u00e9sactive. La tension entre le fil de sortie et la borne n\u00e9gative dispara\u00eet et le signal passe de \u201cnormalement ferm\u00e9\u201d \u00e0 \u201cnormalement ouvert\u201d.\u201d<\/span><\/li><\/ul><p><span style=\"font-weight: 400;\">Ce changement de signal doit \u00eatre connect\u00e9 \u00e0 un contr\u00f4leur de s\u00e9curit\u00e9 (tel qu'un relais de s\u00e9curit\u00e9 ou un automate de s\u00e9curit\u00e9), qui commande alors un contacteur pour couper l'alimentation \u00e9lectrique dangereuse de la machine, garantissant ainsi la conformit\u00e9 aux normes de s\u00e9curit\u00e9 (par exemple, ISO 13849-1) et \u00e9vitant les risques de c\u00e2blage direct.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0ee50b7 elementor-widget elementor-widget-heading\" data-id=\"0ee50b7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Qu'est-ce qu'une barri\u00e8re immat\u00e9rielle de s\u00e9curit\u00e9 \u00e0 double sortie ?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2b78aa4 elementor-widget elementor-widget-image\" data-id=\"2b78aa4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1024\" height=\"512\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/11\/PNP-dual-outoput-safety-light-curtain-wiring-diagram.jpg\" class=\"attachment-large size-large wp-image-18979\" alt=\"Sch\u00e9ma de c\u00e2blage du rideau lumineux de s\u00e9curit\u00e9 \u00e0 double sortie PNP\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/11\/PNP-dual-outoput-safety-light-curtain-wiring-diagram.jpg 1024w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/11\/PNP-dual-outoput-safety-light-curtain-wiring-diagram-300x150.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/11\/PNP-dual-outoput-safety-light-curtain-wiring-diagram-768x384.jpg 768w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/11\/PNP-dual-outoput-safety-light-curtain-wiring-diagram-18x9.jpg 18w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/11\/PNP-dual-outoput-safety-light-curtain-wiring-diagram-600x300.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/11\/PNP-dual-outoput-safety-light-curtain-wiring-diagram-64x32.jpg 64w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fed5295 elementor-widget elementor-widget-text-editor\" data-id=\"fed5295\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Examinons maintenant les barri\u00e8res immat\u00e9rielles de s\u00e9curit\u00e9 \u00e0 double sortie.<\/span><\/p><p><span style=\"font-weight: 400;\">Comme les barri\u00e8res immat\u00e9rielles de s\u00e9curit\u00e9 \u00e0 sortie unique, les barri\u00e8res immat\u00e9rielles de s\u00e9curit\u00e9 \u00e0 double sortie prennent en charge les types de sortie courants, notamment PNP, NPN et relais.<\/span><\/p><p><span style=\"font-weight: 400;\">La principale diff\u00e9rence r\u00e9side dans l'existence de deux canaux de sortie de s\u00e9curit\u00e9 ind\u00e9pendants, g\u00e9n\u00e9ralement \u00e9tiquet\u00e9s <\/span><span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/lorentzzi.com\/fr\/ossd-in-safety-light-curtain-all-you-need-to-know\/\"><span style=\"font-weight: 400;\">OSSD1 (Output Signal Safety Device 1) et OSSD2 (Output Signal Safety Device 2)<\/span><\/a><\/span><span style=\"font-weight: 400;\"> dans la pratique de l'industrie.<\/span><\/p><p><span style=\"font-weight: 400;\">Ces deux canaux fonctionnent ensemble pour r\u00e9pondre \u00e0 des normes de s\u00e9curit\u00e9 strictes (par exemple, EN 61496, ISO 13849-1), assurant une surveillance redondante de l'\u00e9tat de la barri\u00e8re immat\u00e9rielle.<\/span><\/p><p><span style=\"font-weight: 400;\">Pour illustrer son fonctionnement, nous utiliserons une configuration courante comme exemple : une barri\u00e8re immat\u00e9rielle de s\u00e9curit\u00e9 \u00e0 double sortie avec une sortie PNP normalement ferm\u00e9e (NC). Son fonctionnement est le suivant :<\/span><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Lorsque le faisceau lumineux est d\u00e9bloqu\u00e9 : OSSD1 et OSSD2 maintiennent une sortie active. Un signal de tension de 24 V CC existe entre chaque ligne de sortie (par exemple, noire pour OSSD1, brune pour OSSD2) et sa borne n\u00e9gative, ce qui maintient un \u00e9tat \u201cnormalement ferm\u00e9\u201d. Ce signal actif synchronis\u00e9 informe le contr\u00f4leur de s\u00e9curit\u00e9 (par exemple, un automate de s\u00e9curit\u00e9) que la zone prot\u00e9g\u00e9e est intacte.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Lorsque le faisceau lumineux est bloqu\u00e9 : OSSD1 et OSSD2 tombent en panne simultan\u00e9ment. La tension de 24 V CC entre les deux lignes de sortie et leurs bornes n\u00e9gatives dispara\u00eet et les deux signaux passent de mani\u00e8re synchronis\u00e9e de l'\u00e9tat \u201cnormalement ferm\u00e9\u201d \u00e0 l'\u00e9tat \u201cnormalement ouvert\u201d. La barri\u00e8re immat\u00e9rielle de s\u00e9curit\u00e9 reconna\u00eet imm\u00e9diatement l'intrusion et d\u00e9clenche des mesures de s\u00e9curit\u00e9 (par exemple, coupure de l'alimentation \u00e9lectrique dangereuse de la machine).<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Si un d\u00e9faut se produit (par exemple, OSSD1 est actif mais OSSD2 est d\u00e9faillant), le contr\u00f4leur de s\u00e9curit\u00e9 d\u00e9terminera que la barri\u00e8re immat\u00e9rielle est d\u00e9faillante et d\u00e9clenchera un arr\u00eat de s\u00e9curit\u00e9 : Si les signaux des deux canaux ne sont pas coh\u00e9rents, le contr\u00f4leur de s\u00e9curit\u00e9 d\u00e9terminera que la barri\u00e8re immat\u00e9rielle est d\u00e9faillante et d\u00e9clenchera un arr\u00eat de s\u00e9curit\u00e9 - c'est le c\u0153ur de la tol\u00e9rance aux pannes de la conception \u00e0 double sortie.<\/span><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8d80587 elementor-widget elementor-widget-image\" data-id=\"8d80587\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1024\" height=\"512\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/11\/Lorentzzi-high-quality-safety-relay.jpg\" class=\"attachment-large size-large wp-image-18982\" alt=\"Relais de s\u00e9curit\u00e9 de haute qualit\u00e9 Lorentzzi\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/11\/Lorentzzi-high-quality-safety-relay.jpg 1024w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/11\/Lorentzzi-high-quality-safety-relay-300x150.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/11\/Lorentzzi-high-quality-safety-relay-768x384.jpg 768w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/11\/Lorentzzi-high-quality-safety-relay-18x9.jpg 18w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/11\/Lorentzzi-high-quality-safety-relay-600x300.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/11\/Lorentzzi-high-quality-safety-relay-64x32.jpg 64w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-374c0ad elementor-widget elementor-widget-heading\" data-id=\"374c0ad\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Avantages de l'utilisation d'une barri\u00e8re immat\u00e9rielle de s\u00e9curit\u00e9 \u00e0 double sortie<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4cd0d36 elementor-widget elementor-widget-text-editor\" data-id=\"4cd0d36\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">L'utilisation d'une barri\u00e8re immat\u00e9rielle de s\u00e9curit\u00e9 \u00e0 double sortie plut\u00f4t qu'\u00e0 simple sortie pr\u00e9sente plusieurs avantages, voir ci-dessous :<\/span><\/p><ol><li style=\"font-weight: 400;\" aria-level=\"1\"><b>Il offre aux utilisateurs une protection contre la redondance<\/b><span style=\"font-weight: 400;\">Les sorties OSSD sont des sorties de type relais : comme indiqu\u00e9 ci-dessus, elles garantissent que le syst\u00e8me de s\u00e9curit\u00e9 reste efficace m\u00eame en cas de d\u00e9faillance d'un canal de sortie. Cependant, veuillez noter que si la sortie est de type relais, vous pouvez c\u00e2bler les deux sorties OSSD en s\u00e9rie et contr\u00f4ler ensuite un contacteur CA. Si la sortie est de type transistor, comme PNP ou NPN, un relais de s\u00e9curit\u00e9 ou deux contacteurs CA distincts sont n\u00e9cessaires pour assurer une double protection. Si vous avez besoin d'une assistance technique pour le c\u00e2blage des deux OSSD, veuillez vous adresser \u00e0 <\/span><span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/lorentzzi.com\/fr\/contact-us\/\"><span style=\"font-weight: 400;\">nous contacter<\/span><\/a><\/span><span style=\"font-weight: 400;\"> pour obtenir de l'aide.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><b style=\"font-style: inherit;\">Il peut fournir des alertes aux op\u00e9rateurs<\/b><span style=\"font-weight: 400;\">: Outre les avantages mentionn\u00e9s ci-dessus, il peut \u00e9galement \u00eatre utilis\u00e9 de la mani\u00e8re suivante : une sortie est utilis\u00e9e pour contr\u00f4ler l'\u00e9tat marche\/arr\u00eat de la machine afin de prot\u00e9ger l'op\u00e9rateur, et une autre sortie est connect\u00e9e \u00e0 une alarme, un t\u00e9moin lumineux ou un \u00e9cran tactile pour alerter l'op\u00e9rateur en cas de danger.<\/span><\/li><\/ol>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8703a2d elementor-widget elementor-widget-heading\" data-id=\"8703a2d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Conclusion<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c50cf75 elementor-widget elementor-widget-text-editor\" data-id=\"c50cf75\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">En r\u00e9sum\u00e9, la barri\u00e8re immat\u00e9rielle de s\u00e9curit\u00e9 \u00e0 double sortie est fortement recommand\u00e9e en raison de sa conception redondante. M\u00eame si l'une des sorties tombe en panne, l'autre fonctionne toujours, ce qui est essentiel pour prot\u00e9ger l'op\u00e9rateur de l'impact de machines lourdes et dangereuses.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f4a32fb elementor-widget elementor-widget-image\" data-id=\"f4a32fb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"#elementor-action%3Aaction%3Dpopup%3Aopen%26settings%3DeyJpZCI6Ijg4MzMiLCJ0b2dnbGUiOmZhbHNlfQ%3D%3D\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"512\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/11\/Lorentzzi-high-quality-dual-output-safety-light-curtain-\u62f7\u8d1d.jpg\" class=\"attachment-large size-large wp-image-18981\" alt=\"Barri\u00e8re immat\u00e9rielle de s\u00e9curit\u00e9 \u00e0 double sortie de haute qualit\u00e9 Lorentzzi\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/11\/Lorentzzi-high-quality-dual-output-safety-light-curtain-\u62f7\u8d1d.jpg 1024w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/11\/Lorentzzi-high-quality-dual-output-safety-light-curtain-\u62f7\u8d1d-300x150.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/11\/Lorentzzi-high-quality-dual-output-safety-light-curtain-\u62f7\u8d1d-768x384.jpg 768w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/11\/Lorentzzi-high-quality-dual-output-safety-light-curtain-\u62f7\u8d1d-18x9.jpg 18w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/11\/Lorentzzi-high-quality-dual-output-safety-light-curtain-\u62f7\u8d1d-600x300.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/11\/Lorentzzi-high-quality-dual-output-safety-light-curtain-\u62f7\u8d1d-64x32.jpg 64w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5ecf983 elementor-widget elementor-widget-text-editor\" data-id=\"5ecf983\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Si vous \u00eates \u00e0 la recherche d'un fournisseur et d'un partenaire commercial fiables pour les barri\u00e8res immat\u00e9rielles de s\u00e9curit\u00e9 en Chine, vous pouvez envoyer votre demande \u00e0 l'adresse suivante <\/span><span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"mailto:shonxu@lorentzzi.com\"><span style=\"font-weight: 400;\">shonxu@lorentzzi.com<\/span><\/a><\/span><span style=\"font-weight: 400;\">Nous vous r\u00e9pondrons dans les 24 heures.\u00a0<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5fa902a eael-product-grid-column-4 elementor-widget elementor-widget-eicon-woocommerce\" data-id=\"5fa902a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"eicon-woocommerce.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\n        <div class=\"eael-product-grid eael-product-simple grid\" id=\"eael-product-grid\" data-widget-id=\"5fa902a\" data-page-id=\"18983\" data-nonce=\"636274bb85\" >\n            <div class=\"woocommerce\">\n                <ul class=\"products eael-post-appender eael-post-appender-5fa902a\" data-ssi-desktop=\"no\" data-ssi-tablet=\"no\" data-ssi-mobile=\"no\" data-layout-mode=\"grid\"> <li class=\"product\">\n<div class=\"eael-product-wrap\" data-src=\"\" data-src-hover=\"\">\n    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/proximity-sensor\/safety-light-curtain\/200-mm-protection-height-safety-light-curtain-sensor\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><img decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/08\/200-mm-Protection-Height-Safety-Light-Curtain-Sensor-1-300x300.jpg\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail wvs-archive-product-image\" alt=\"200 mm Hauteur de protection Barri\u00e8re immat\u00e9rielle de s\u00e9curit\u00e9 Capteur\" loading=\"eager\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/08\/200-mm-Protection-Height-Safety-Light-Curtain-Sensor-1-300x300.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/08\/200-mm-Protection-Height-Safety-Light-Curtain-Sensor-1-150x150.jpg 150w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/08\/200-mm-Protection-Height-Safety-Light-Curtain-Sensor-1-600x600.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/08\/200-mm-Protection-Height-Safety-Light-Curtain-Sensor-1-100x100.jpg 100w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/08\/200-mm-Protection-Height-Safety-Light-Curtain-Sensor-1-64x64.jpg 64w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/08\/200-mm-Protection-Height-Safety-Light-Curtain-Sensor-1.jpg 640w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><div class=\"eael-product-title\">\n    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/proximity-sensor\/safety-light-curtain\/200-mm-protection-height-safety-light-curtain-sensor\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><h3 class=\"woocommerce-loop-product__title\">200 mm Hauteur de protection Barri\u00e8re immat\u00e9rielle de s\u00e9curit\u00e9 Capteur<\/h3><\/a>\n    <\/div>    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/proximity-sensor\/safety-light-curtain\/200-mm-protection-height-safety-light-curtain-sensor\/\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_12022\" data-quantity=\"1\" class=\"button product_type_simple\" data-product_id=\"12022\" data-product_sku=\"\" aria-label=\"En savoir plus sur \u201c200 mm Protection Height Safety Light Curtain Sensor\u201d\" rel=\"nofollow\" data-success_message=\"\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\">Lire la suite<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_12022\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n    \n<\/div>\n\n<\/li> <li class=\"product\">\n<div class=\"eael-product-wrap\" data-src=\"\" data-src-hover=\"\">\n    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/proximity-sensor\/safety-light-curtain\/360-mm-protection-height-safety-light-curtain-sensor\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><img decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/08\/360mm-Protection-Height-Safety-Light-Curtain-Sensor-2-300x300.jpg\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail wvs-archive-product-image\" alt=\"360 mm Hauteur de protection Barri\u00e8re immat\u00e9rielle de s\u00e9curit\u00e9 Capteur\" loading=\"eager\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/08\/360mm-Protection-Height-Safety-Light-Curtain-Sensor-2-300x300.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/08\/360mm-Protection-Height-Safety-Light-Curtain-Sensor-2-150x150.jpg 150w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/08\/360mm-Protection-Height-Safety-Light-Curtain-Sensor-2-600x600.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/08\/360mm-Protection-Height-Safety-Light-Curtain-Sensor-2-100x100.jpg 100w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/08\/360mm-Protection-Height-Safety-Light-Curtain-Sensor-2-64x64.jpg 64w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/08\/360mm-Protection-Height-Safety-Light-Curtain-Sensor-2.jpg 640w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><div class=\"eael-product-title\">\n    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/proximity-sensor\/safety-light-curtain\/360-mm-protection-height-safety-light-curtain-sensor\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><h3 class=\"woocommerce-loop-product__title\">360 mm Hauteur de protection Barri\u00e8re immat\u00e9rielle de s\u00e9curit\u00e9 Capteur<\/h3><\/a>\n    <\/div>    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/proximity-sensor\/safety-light-curtain\/360-mm-protection-height-safety-light-curtain-sensor\/\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_12019\" data-quantity=\"1\" class=\"button product_type_simple\" data-product_id=\"12019\" data-product_sku=\"\" aria-label=\"En savoir plus sur \u201c360 mm Protection Height Safety Light Curtain Sensor\u201d\" rel=\"nofollow\" data-success_message=\"\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\">Lire la suite<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_12019\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n    \n<\/div>\n\n<\/li> <li class=\"product\">\n<div class=\"eael-product-wrap\" data-src=\"\" data-src-hover=\"\">\n    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/proximity-sensor\/safety-light-curtain\/1000-mm-protection-height-safety-light-curtain\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><img decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/08\/1000-mm-Protection-Height-Safety-Light-Curtain-1-300x300.jpg\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail wvs-archive-product-image\" alt=\"1000 mm Hauteur de protection Barri\u00e8re immat\u00e9rielle de s\u00e9curit\u00e9-1\" loading=\"eager\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/08\/1000-mm-Protection-Height-Safety-Light-Curtain-1-300x300.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/08\/1000-mm-Protection-Height-Safety-Light-Curtain-1-150x150.jpg 150w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/08\/1000-mm-Protection-Height-Safety-Light-Curtain-1-600x600.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/08\/1000-mm-Protection-Height-Safety-Light-Curtain-1-100x100.jpg 100w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/08\/1000-mm-Protection-Height-Safety-Light-Curtain-1-64x64.jpg 64w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/08\/1000-mm-Protection-Height-Safety-Light-Curtain-1.jpg 640w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><div class=\"eael-product-title\">\n    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/proximity-sensor\/safety-light-curtain\/1000-mm-protection-height-safety-light-curtain\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><h3 class=\"woocommerce-loop-product__title\">1000 mm Hauteur de protection Barri\u00e8re immat\u00e9rielle de s\u00e9curit\u00e9<\/h3><\/a>\n    <\/div>    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/proximity-sensor\/safety-light-curtain\/1000-mm-protection-height-safety-light-curtain\/\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_11862\" data-quantity=\"1\" class=\"button product_type_simple\" data-product_id=\"11862\" data-product_sku=\"\" aria-label=\"En savoir plus sur \u201c1000 mm Protection Height Safety Light Curtain\u201d\" rel=\"nofollow\" data-success_message=\"\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\">Lire la suite<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_11862\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n    \n<\/div>\n\n<\/li> <li class=\"product\">\n<div class=\"eael-product-wrap\" data-src=\"\" data-src-hover=\"\">\n    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/proximity-sensor\/safety-light-curtain\/safety-light-grid-for-machinery-1240-mm-protection-height\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><img decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2022\/09\/1240-protection-height-safety-light-curtain-sensor-1-300x300.jpg\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail wvs-archive-product-image\" alt=\"Barri\u00e8re immat\u00e9rielle de s\u00e9curit\u00e9 pour machines\" loading=\"eager\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2022\/09\/1240-protection-height-safety-light-curtain-sensor-1-300x300.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2022\/09\/1240-protection-height-safety-light-curtain-sensor-1-150x150.jpg 150w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2022\/09\/1240-protection-height-safety-light-curtain-sensor-1-600x600.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2022\/09\/1240-protection-height-safety-light-curtain-sensor-1-100x100.jpg 100w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2022\/09\/1240-protection-height-safety-light-curtain-sensor-1-64x64.jpg 64w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2022\/09\/1240-protection-height-safety-light-curtain-sensor-1.jpg 640w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><div class=\"eael-product-title\">\n    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/proximity-sensor\/safety-light-curtain\/safety-light-grid-for-machinery-1240-mm-protection-height\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><h3 class=\"woocommerce-loop-product__title\">Barri\u00e8re immat\u00e9rielle de s\u00e9curit\u00e9 pour machines, hauteur de protection 1240 mm<\/h3><\/a>\n    <\/div>    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/proximity-sensor\/safety-light-curtain\/safety-light-grid-for-machinery-1240-mm-protection-height\/\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_4801\" data-quantity=\"1\" class=\"button product_type_simple\" data-product_id=\"4801\" data-product_sku=\"\" aria-label=\"En savoir plus sur \u201cSafety Light Grid for Machinery, 1240 mm Protection Height\u201d\" rel=\"nofollow\" data-success_message=\"\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\">Lire la suite<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_4801\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n    \n<\/div>\n\n<\/li><\/ul>            <\/div>\n        <\/div>\n\n        <script type=\"text\/javascript\">\n            jQuery(document).ready(function($) {\n                var $scope = jQuery(\".elementor-element-5fa902a\");\n                var $products = $('.products', $scope);\n                var $layout_mode = $products.data('layout-mode');\n                \n                if ( $layout_mode === 'masonry' ) {\n                    \/\/ init isotope\n                    var $isotope_products = $products.isotope({\n                        itemSelector: \"li.product\",\n                        layoutMode: $layout_mode,\n                        percentPosition: true\n                    });\n\n                    $isotope_products.imagesLoaded().progress( function() {\n                        $isotope_products.isotope('layout');\n                    })\n                    \n                }\n            });\n        <\/script>\n        \t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-90e2a47 elementor-widget elementor-widget-text-editor\" data-id=\"90e2a47\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">En tant que fournisseur professionnel en Chine, <\/span><span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/lorentzzi.com\/fr\/\"><span style=\"font-weight: 400;\">Wenzhou Lorentzzi Electric Co, Ltd.<\/span><\/a><\/span><span style=\"font-weight: 400;\"> offres <\/span><span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/lorentzzi.com\/fr\/safety-light-curtain-sensor\/\"><span style=\"font-weight: 400;\">barri\u00e8res immat\u00e9rielles de s\u00e9curit\u00e9 \u00e0 double sortie<\/span><\/a><\/span><span style=\"font-weight: 400;\"> avec une qualit\u00e9 constante et diverses options de longueur pour r\u00e9pondre \u00e0 toutes vos exigences en mati\u00e8re de s\u00e9curit\u00e9.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Imagine this: You&#8217;re looking for a safety light curtain to protect your workers from hazardous machinery, but when you search for suppliers, they tell you there are two types available: single-output and dual-output. So, how do you choose? What are the differences between these two types? Which one is more suitable? This article will answer [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":18978,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[110],"tags":[],"class_list":["post-18983","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sensor","desktop-align-center","tablet-align-left","mobile-align-left"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.0 (Yoast SEO v27.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Single-output Vs Dual-output Safety Light Curtains: Which Is Better?<\/title>\n<meta name=\"description\" content=\"In this article, we will explain single-output vs dual-output safety light curtains in details, click to get more information now!\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/lorentzzi.com\/fr\/single-output-vs-dual-output-safety-light-curtains-which-is-better\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Single-output Vs Dual-output Safety Light Curtains: Which Is Better?\" \/>\n<meta property=\"og:description\" content=\"In this article, we will explain single-output vs dual-output safety light curtains in details, click to get more information now!\" \/>\n<meta property=\"og:url\" content=\"https:\/\/lorentzzi.com\/fr\/single-output-vs-dual-output-safety-light-curtains-which-is-better\/\" \/>\n<meta property=\"og:site_name\" content=\"Lorentzzi Industrial Supply-Chinese Manufacturer&amp;Exporter\" \/>\n<meta property=\"article:published_time\" content=\"2025-11-03T01:48:26+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-11-03T07:38:03+00:00\" \/>\n<meta property=\"og:image\" 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