{"id":20765,"date":"2026-06-06T15:31:29","date_gmt":"2026-06-06T07:31:29","guid":{"rendered":"https:\/\/lorentzzi.com\/?p=20765"},"modified":"2026-06-06T15:32:09","modified_gmt":"2026-06-06T07:32:09","slug":"how-to-wire-a-safety-light-curtain","status":"publish","type":"post","link":"https:\/\/lorentzzi.com\/pt\/how-to-wire-a-safety-light-curtain\/","title":{"rendered":"Como fazer a instala\u00e7\u00e3o el\u00e9trica de uma cortina de luz de seguran\u00e7a (2026)?"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"20765\" class=\"elementor elementor-20765\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-dadbd50 e-flex e-con-boxed e-con e-parent\" data-id=\"dadbd50\" 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-a413599 elementor-widget elementor-widget-text-editor\" data-id=\"a413599\" 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;\">Escolher uma empresa de boa reputa\u00e7\u00e3o <\/span><span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/lorentzzi.com\/pt\/top-13-global-safety-light-curtain-manufacturers\/\"><span style=\"font-weight: 400;\">fornecedor de cortinas de luz de seguran\u00e7a<\/span><\/a><\/span><span style=\"font-weight: 400;\"> \u00c9 importante, mas saber como fazer a instala\u00e7\u00e3o el\u00e9trica da cortina de luz de seguran\u00e7a \u00e9 outra hist\u00f3ria. Por isso, este artigo ir\u00e1 detalhar os m\u00e9todos de instala\u00e7\u00e3o el\u00e9trica para cortinas de luz de seguran\u00e7a.<\/span><\/p><p><span style=\"font-weight: 400;\">Este tutorial inclui instru\u00e7\u00f5es de instala\u00e7\u00e3o el\u00e9trica para tr\u00eas tipos de cortinas de luz de seguran\u00e7a:<\/span><\/p><ol><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Cortina de luz de seguran\u00e7a NPN,<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Cortina de luz de seguran\u00e7a PNP,<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Cortina de luz de seguran\u00e7a com sa\u00edda de rel\u00e9.<\/span><\/li><\/ol><p><span style=\"font-weight: 400;\">Ent\u00e3o, vamos come\u00e7ar.<\/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-658deef elementor-widget elementor-widget-heading\" data-id=\"658deef\" 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\">Diagrama de fia\u00e7\u00e3o da cortina de luz de seguran\u00e7a NPN<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1f0428e elementor-widget elementor-widget-text-editor\" data-id=\"1f0428e\" 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;\">Semelhante ao nosso <\/span><span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/lorentzzi.com\/pt\/sensor-fotoeletrico-2\/\"><span style=\"font-weight: 400;\">sensores fotoel\u00e9tricos<\/span><\/a><\/span><span style=\"font-weight: 400;\"> ou outros tipos de <\/span><span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/lorentzzi.com\/pt\/sensores-de-proximidade\/\"><span style=\"font-weight: 400;\">sensores de proximidade<\/span><\/a><\/span><span style=\"font-weight: 400;\">, as cortinas de luz de seguran\u00e7a geralmente oferecem sa\u00eddas de transistor NPN e PNP, bem como sa\u00eddas de contato de rel\u00e9 sem tens\u00e3o.<\/span><\/p><p><span style=\"font-weight: 400;\">Antes de apresentar o esquema de fia\u00e7\u00e3o de uma cortina de luz de seguran\u00e7a com sa\u00edda NPN, precisamos primeiro compreender seu princ\u00edpio de funcionamento.<\/span><\/p><p><span style=\"font-weight: 400;\">Por motivos de seguran\u00e7a, o circuito de sa\u00edda de uma cortina de luz de seguran\u00e7a \u00e9 normalmente projetado no modo normalmente fechado (NC). Portanto, seu princ\u00edpio de funcionamento ser\u00e1 o seguinte:<\/span><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Quando o feixe n\u00e3o est\u00e1 bloqueado (estado normal): o transistor NPN interno fica ligado (permanece normalmente fechado) e o terminal de sa\u00edda (fio preto) est\u00e1 em 0 V em rela\u00e7\u00e3o ao terra.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Quando o feixe \u00e9 bloqueado (estado acionado): O transistor NPN interno \u00e9 desligado (o circuito muda de normalmente fechado para normalmente aberto), e o terminal de sa\u00edda \u00e9 desconectado de 0 V. Nesse momento, a sa\u00edda fica em estado flutuante. Se um resistor pull-up estiver conectado no circuito externo (por exemplo, conectado a uma entrada de PLC), a sa\u00edda passar\u00e1 a ser de 24 V.<\/span><\/li><\/ul><p><span style=\"font-weight: 400;\">Veja, ent\u00e3o, o seguinte esquema de fia\u00e7\u00e3o da cortina de luz de seguran\u00e7a NPN:<\/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-71dff9c elementor-widget elementor-widget-image\" data-id=\"71dff9c\" 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\/2026\/06\/Single-NPN-Output-Safety-Light-Curtain-Wiring-Diagram.jpg\" class=\"attachment-large size-large wp-image-20768\" alt=\"Diagrama de fia\u00e7\u00e3o da cortina de luz de seguran\u00e7a com sa\u00edda NPN \u00fanica\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/06\/Single-NPN-Output-Safety-Light-Curtain-Wiring-Diagram.jpg 1024w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/06\/Single-NPN-Output-Safety-Light-Curtain-Wiring-Diagram-300x150.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/06\/Single-NPN-Output-Safety-Light-Curtain-Wiring-Diagram-768x384.jpg 768w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/06\/Single-NPN-Output-Safety-Light-Curtain-Wiring-Diagram-18x9.jpg 18w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/06\/Single-NPN-Output-Safety-Light-Curtain-Wiring-Diagram-600x300.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/06\/Single-NPN-Output-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-8aeac33 elementor-widget elementor-widget-image\" data-id=\"8aeac33\" 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\/2026\/06\/Dual-NPN-Outputs-Safety-Light-Curtain-Wiring-Diagram.jpg\" class=\"attachment-large size-large wp-image-20769\" alt=\"\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/06\/Dual-NPN-Outputs-Safety-Light-Curtain-Wiring-Diagram.jpg 1024w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/06\/Dual-NPN-Outputs-Safety-Light-Curtain-Wiring-Diagram-300x150.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/06\/Dual-NPN-Outputs-Safety-Light-Curtain-Wiring-Diagram-768x384.jpg 768w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/06\/Dual-NPN-Outputs-Safety-Light-Curtain-Wiring-Diagram-18x9.jpg 18w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/06\/Dual-NPN-Outputs-Safety-Light-Curtain-Wiring-Diagram-600x300.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/06\/Dual-NPN-Outputs-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-7601fd8 elementor-widget elementor-widget-heading\" data-id=\"7601fd8\" 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\">Diagrama de fia\u00e7\u00e3o da cortina de luz de seguran\u00e7a PNP<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e5bc37f elementor-widget elementor-widget-text-editor\" data-id=\"e5bc37f\" 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;\">Por outro lado, a sa\u00edda da cortina de luz de seguran\u00e7a gerada por um transistor PNP \u00e9 completamente diferente da sa\u00edda da cortina de luz de seguran\u00e7a gerada por um transistor NPN.<\/span><\/p><p><span style=\"font-weight: 400;\">\u00c9 importante observar que os m\u00e9todos de sincroniza\u00e7\u00e3o para cortinas de luz de seguran\u00e7a se dividem em sincroniza\u00e7\u00e3o \u00f3ptica e sincroniza\u00e7\u00e3o de linha. A vantagem da sincroniza\u00e7\u00e3o \u00f3ptica \u00e9 que ela reduz a necessidade de fia\u00e7\u00e3o, mas a desvantagem \u00e9 que ela \u00e9 facilmente afetada por luz intensa. A vantagem da sincroniza\u00e7\u00e3o de linha \u00e9 que ela \u00e9 est\u00e1vel e n\u00e3o \u00e9 afetada por luz forte, mas a fia\u00e7\u00e3o \u00e9 um pouco mais complicada e requer cabos adicionais.<\/span><\/p><p><span style=\"font-weight: 400;\">E o princ\u00edpio de funcionamento da cortina de luz de seguran\u00e7a PNP \u00e9 o seguinte:<\/span><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Quando o feixe n\u00e3o est\u00e1 bloqueado (estado normal): o transistor PNP interno est\u00e1 inicialmente ligado (permanece normalmente fechado), e a sa\u00edda (fio preto) apresenta +24 VCC (n\u00edvel alto) em rela\u00e7\u00e3o ao terra.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Quando o feixe \u00e9 bloqueado (estado de acionamento): O transistor PNP interno est\u00e1 inicialmente desligado, e o terminal de sa\u00edda est\u00e1 desconectado de +24 V. Nesse momento, a sa\u00edda encontra-se em estado flutuante. Se um resistor pull-down estiver conectado no circuito externo (por exemplo, conectado a uma entrada de PLC), a sa\u00edda ficar\u00e1 em 0 V.<\/span><\/li><\/ul><p><span style=\"font-weight: 400;\">Portanto, o diagrama de fia\u00e7\u00e3o \u00e9 o seguinte:<\/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-0c2b0ee elementor-widget elementor-widget-image\" data-id=\"0c2b0ee\" 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\/2026\/06\/Single-PNP-Output-Safety-Light-Curtain-Wiring-Diagram.jpg\" class=\"attachment-large size-large wp-image-20770\" alt=\"\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/06\/Single-PNP-Output-Safety-Light-Curtain-Wiring-Diagram.jpg 1024w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/06\/Single-PNP-Output-Safety-Light-Curtain-Wiring-Diagram-300x150.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/06\/Single-PNP-Output-Safety-Light-Curtain-Wiring-Diagram-768x384.jpg 768w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/06\/Single-PNP-Output-Safety-Light-Curtain-Wiring-Diagram-18x9.jpg 18w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/06\/Single-PNP-Output-Safety-Light-Curtain-Wiring-Diagram-600x300.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/06\/Single-PNP-Output-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-a8f962d elementor-widget elementor-widget-image\" data-id=\"a8f962d\" 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 loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"512\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/06\/Dual-PNP-Outputs-Safety-Light-Curtain-Wiring-Diagram.jpg\" class=\"attachment-large size-large wp-image-20771\" alt=\"Diagrama de fia\u00e7\u00e3o da cortina de luz de seguran\u00e7a com sa\u00eddas PNP duplas\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/06\/Dual-PNP-Outputs-Safety-Light-Curtain-Wiring-Diagram.jpg 1024w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/06\/Dual-PNP-Outputs-Safety-Light-Curtain-Wiring-Diagram-300x150.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/06\/Dual-PNP-Outputs-Safety-Light-Curtain-Wiring-Diagram-768x384.jpg 768w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/06\/Dual-PNP-Outputs-Safety-Light-Curtain-Wiring-Diagram-18x9.jpg 18w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/06\/Dual-PNP-Outputs-Safety-Light-Curtain-Wiring-Diagram-600x300.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/06\/Dual-PNP-Outputs-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-5fa4d22 elementor-widget elementor-widget-heading\" data-id=\"5fa4d22\" 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\">Diagrama de fia\u00e7\u00e3o da cortina de luz de seguran\u00e7a com sa\u00edda de rel\u00e9<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-50ef100 elementor-widget elementor-widget-text-editor\" data-id=\"50ef100\" 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;\">Se a sa\u00edda de uma cortina de luz de seguran\u00e7a for do tipo rel\u00e9, ela funciona como um interruptor de contato sem tens\u00e3o (seco). Sem uma fonte de alimenta\u00e7\u00e3o externa conectada a essas sa\u00eddas de rel\u00e9, ela s\u00f3 pode abrir ou fechar o circuito, mas n\u00e3o pode fornecer tens\u00e3o ou corrente de acionamento \u00e0 unidade controlada.<\/span><\/p><p><span style=\"font-weight: 400;\">Portanto, para que uma cortina de luz de seguran\u00e7a com sa\u00edda de rel\u00e9 funcione corretamente, \u00e9 necess\u00e1rio conectar uma fonte de alimenta\u00e7\u00e3o externa aos terminais de sa\u00edda do rel\u00e9.<\/span><\/p><p><span style=\"font-weight: 400;\">O princ\u00edpio de funcionamento da cortina de luz de seguran\u00e7a com sa\u00edda de rel\u00e9 \u00e9 o seguinte:<\/span><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Se o feixe n\u00e3o for bloqueado, o circuito permanece fechado e a m\u00e1quina pode funcionar normalmente.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Quando o feixe \u00e9 bloqueado, seus contatos passam de normalmente fechados para normalmente abertos, interrompendo assim a alimenta\u00e7\u00e3o externa da bobina do rel\u00e9 de uso geral ou do contator CA e, consequentemente, desligando o motor ou outros atuadores.<\/span><\/li><\/ul><p><span style=\"font-weight: 400;\">O diagrama de fia\u00e7\u00e3o da cortina de luz de seguran\u00e7a com sa\u00edda de rel\u00e9 \u00e9 o seguinte:<\/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-a8194c0 elementor-widget elementor-widget-image\" data-id=\"a8194c0\" 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 loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"512\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/06\/Single-Relay-Output-Safety-Light-Curtain-Wiring-Diagram.jpg\" class=\"attachment-large size-large wp-image-20772\" alt=\"\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/06\/Single-Relay-Output-Safety-Light-Curtain-Wiring-Diagram.jpg 1024w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/06\/Single-Relay-Output-Safety-Light-Curtain-Wiring-Diagram-300x150.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/06\/Single-Relay-Output-Safety-Light-Curtain-Wiring-Diagram-768x384.jpg 768w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/06\/Single-Relay-Output-Safety-Light-Curtain-Wiring-Diagram-18x9.jpg 18w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/06\/Single-Relay-Output-Safety-Light-Curtain-Wiring-Diagram-600x300.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/06\/Single-Relay-Output-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-72fda76 elementor-widget elementor-widget-image\" data-id=\"72fda76\" 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 loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"512\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/06\/Dual-Relay-Outputs-Safety-Light-Curtain-Wiring-Diagram.jpg\" class=\"attachment-large size-large wp-image-20773\" alt=\"Diagrama de fia\u00e7\u00e3o da cortina de luz de seguran\u00e7a com sa\u00eddas duplas de rel\u00e9\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/06\/Dual-Relay-Outputs-Safety-Light-Curtain-Wiring-Diagram.jpg 1024w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/06\/Dual-Relay-Outputs-Safety-Light-Curtain-Wiring-Diagram-300x150.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/06\/Dual-Relay-Outputs-Safety-Light-Curtain-Wiring-Diagram-768x384.jpg 768w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/06\/Dual-Relay-Outputs-Safety-Light-Curtain-Wiring-Diagram-18x9.jpg 18w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/06\/Dual-Relay-Outputs-Safety-Light-Curtain-Wiring-Diagram-600x300.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/06\/Dual-Relay-Outputs-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-15c6114 elementor-widget elementor-widget-heading\" data-id=\"15c6114\" 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\">Posso usar rel\u00e9s de uso geral (intermedi\u00e1rios) com a cortina de luz de seguran\u00e7a?\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-842259d elementor-widget elementor-widget-text-editor\" data-id=\"842259d\" 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;\">A <\/span><span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/lorentzzi.com\/pt\/general-purpose-relay-what-is-it-and-how-does-it-work\/\"><span style=\"font-weight: 400;\">rel\u00e9 de uso geral (intermedi\u00e1rio)<\/span><\/a><\/span><span style=\"font-weight: 400;\"> \u00e9 um dispositivo que utiliza um pequeno sinal de controle para controlar alta tens\u00e3o e alta corrente. Portanto, ao conectar a sa\u00edda de uma cortina de luz de seguran\u00e7a ao terminal de sinal de controle de um rel\u00e9 de uso geral e conectar a parte controlada a uma pequena carga ou bobina de um <\/span><span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/lorentzzi.com\/pt\/products\/accessories\/cjx2-contactor\/\"><span style=\"font-weight: 400;\">Contator CA<\/span><\/a><\/span><span style=\"font-weight: 400;\">, a m\u00e1quina pode ser ligada e desligada.<\/span><\/p><p><span style=\"font-weight: 400;\">Portanto, no caso de cortinas de luz de seguran\u00e7a de sa\u00edda \u00fanica ou dupla, \u00e9 poss\u00edvel utilizar um ou dois rel\u00e9s de uso geral em conjunto; no entanto, essa configura\u00e7\u00e3o \u00e9 menos segura do que um rel\u00e9 espec\u00edfico para cortinas de luz de seguran\u00e7a e n\u00e3o est\u00e1 em conformidade com as normas de seguran\u00e7a funcional (por exemplo, <\/span><span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/www.iso.org\/standard\/69883.html\" target=\"_blank\" rel=\"noopener nofollow\"><span style=\"font-weight: 400;\">ISO 13849<\/span><\/a><\/span><span style=\"font-weight: 400;\">, <\/span><span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/webstore.iec.ch\/en\/publication\/59927\" target=\"_blank\" rel=\"noopener nofollow\"><span style=\"font-weight: 400;\">IEC 62061<\/span><\/a><\/span><span style=\"font-weight: 400;\">).<\/span><\/p><p><span style=\"font-weight: 400;\">Em resumo, embora um rel\u00e9 de uso geral possa ser utilizado em conjunto com uma cortina de luz de seguran\u00e7a para parar a m\u00e1quina e proteger os operadores, ele \u00e9 <\/span><b>recomenda-se vivamente o uso de um <\/b><span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/lorentzzi.com\/pt\/products\/proximity-sensor\/safety-light-curtain\/light-curtain-safety-relay-for-dual-output-safety-light-curtain-sensor\/\"><b>rel\u00e9 de seguran\u00e7a para cortina de luz<\/b><\/a><\/span><span style=\"font-weight: 400;\"> para evitar poss\u00edveis riscos ao pessoal, uma vez que oferece maior confiabilidade.<\/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-e1f3bb6 elementor-widget elementor-widget-heading\" data-id=\"e1f3bb6\" 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\">Conclus\u00e3o<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9a370ed elementor-widget elementor-widget-text-editor\" data-id=\"9a370ed\" 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;\">Em resumo, antes de conectar uma cortina de luz de seguran\u00e7a, \u00e9 preciso determinar seu tipo de sa\u00edda: transistor NPN, transistor PNP ou sa\u00edda por rel\u00e9, e se trata de uma <\/span><span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/lorentzzi.com\/pt\/single-output-vs-dual-output-safety-light-curtains-which-is-better\/\"><span style=\"font-weight: 400;\">sa\u00edda \u00fanica ou dupla<\/span><\/a><\/span><span style=\"font-weight: 400;\">. As sa\u00eddas duplas geralmente oferecem redund\u00e2ncia e prote\u00e7\u00e3o de backup, mas a instala\u00e7\u00e3o el\u00e9trica ser\u00e1 um pouco mais complexa.<\/span><\/p><p><span style=\"font-weight: 400;\">Se voc\u00ea ainda tiver d\u00favidas sobre a instala\u00e7\u00e3o de uma cortina de luz de seguran\u00e7a, entre em contato conosco, <\/span><span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/lorentzzi.com\/pt\/\"><span style=\"font-weight: 400;\">Lorentzzi Electric<\/span><\/a><\/span><span style=\"font-weight: 400;\">, para obter mais suporte t\u00e9cnico gratuito.<\/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>Choosing a reputable safety light curtain supplier is important, but knowing how to wire the safety light curtain is another matter entirely. Therefore, this article will detail the wiring methods for safety light curtains. This tutorial includes wiring instructions for three types of safety light curtains: NPN safety light curtain, PNP safety light curtain, Relay [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":20766,"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-20765","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sensor"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.5 (Yoast SEO v27.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>How to Wire a Safety Light Curtain (2026)?<\/title>\n<meta name=\"description\" content=\"In this blog post, we will provide you with a detailed wiring diagram for different safety light curtains. 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Click to learn how to wire them!\" \/>\n<meta property=\"og:url\" content=\"https:\/\/lorentzzi.com\/pt\/how-to-wire-a-safety-light-curtain\/\" \/>\n<meta property=\"og:site_name\" content=\"Lorentzzi Industrial Supply-Chinese Manufacturer&amp;Exporter\" \/>\n<meta property=\"article:published_time\" content=\"2026-06-06T07:31:29+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-06-06T07:32:09+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/06\/Safety-light-curtain-wiring-diagram-blog-cover.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"640\" \/>\n\t<meta property=\"og:image:height\" content=\"640\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Shon\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"Shon\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. tempo de leitura\" \/>\n\t<meta name=\"twitter:data2\" content=\"6 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/lorentzzi.com\\\/how-to-wire-a-safety-light-curtain\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/lorentzzi.com\\\/how-to-wire-a-safety-light-curtain\\\/\"},\"author\":{\"name\":\"Shon\",\"@id\":\"https:\\\/\\\/lorentzzi.com\\\/#\\\/schema\\\/person\\\/f4d29474f9d489167c3db9a85835c8d1\"},\"headline\":\"How to Wire a Safety Light Curtain (2026)?\",\"datePublished\":\"2026-06-06T07:31:29+00:00\",\"dateModified\":\"2026-06-06T07:32:09+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/lorentzzi.com\\\/how-to-wire-a-safety-light-curtain\\\/\"},\"wordCount\":845,\"publisher\":{\"@id\":\"https:\\\/\\\/lorentzzi.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/lorentzzi.com\\\/how-to-wire-a-safety-light-curtain\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/lorentzzi.com\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/Safety-light-curtain-wiring-diagram-blog-cover.jpg\",\"articleSection\":[\"Proximity Sensor\"],\"inLanguage\":\"pt-BR\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/lorentzzi.com\\\/how-to-wire-a-safety-light-curtain\\\/\",\"url\":\"https:\\\/\\\/lorentzzi.com\\\/how-to-wire-a-safety-light-curtain\\\/\",\"name\":\"How to Wire a Safety Light Curtain (2026)?\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/lorentzzi.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/lorentzzi.com\\\/how-to-wire-a-safety-light-curtain\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/lorentzzi.com\\\/how-to-wire-a-safety-light-curtain\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/lorentzzi.com\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/Safety-light-curtain-wiring-diagram-blog-cover.jpg\",\"datePublished\":\"2026-06-06T07:31:29+00:00\",\"dateModified\":\"2026-06-06T07:32:09+00:00\",\"description\":\"In this blog post, we will provide you with a detailed wiring diagram for different safety light curtains. 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