{"id":13611,"date":"2024-07-20T13:46:11","date_gmt":"2024-07-20T05:46:11","guid":{"rendered":"https:\/\/lorentzzi.com\/?p=13611"},"modified":"2025-07-07T10:23:07","modified_gmt":"2025-07-07T02:23:07","slug":"safety-light-curtain-terms-explanation-6-terms-you-must-know","status":"publish","type":"post","link":"https:\/\/lorentzzi.com\/fr\/safety-light-curtain-terms-explanation-6-terms-you-must-know\/","title":{"rendered":"Explication des termes relatifs aux barri\u00e8res immat\u00e9rielles de s\u00e9curit\u00e9 : 6 termes \u00e0 conna\u00eetre"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"13611\" class=\"elementor elementor-13611\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-664c5f9 e-flex e-con-boxed e-con e-parent\" data-id=\"664c5f9\" 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-e20d9f6 elementor-widget elementor-widget-text-editor\" data-id=\"e20d9f6\" 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;\"><span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/lorentzzi.com\/\">Safety light curtains<\/a><\/span> not only protect workers from dangerous machines in an invisible way, but also save time when frequently opening or closing guardrails manually. The first safety light curtain was developed by Erwin Sick, who subsequently founded the SICK &#8211; a well-known German sensor manufacturer.<\/span><\/p><p><span style=\"font-weight: 400;\">As a beginner of safety light curtains, you may be confused by some professional terms such as EMD, PLe, Category 4, muting, blanking etc. Below we will introduce various terms in detail. Let&#8217;s get started.<\/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-186d982 eael-product-grid-column-4 elementor-widget elementor-widget-eicon-woocommerce\" data-id=\"186d982\" 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=\"186d982\" data-page-id=\"13611\" data-nonce=\"636274bb85\" >\n            <div class=\"woocommerce\">\n                <ul class=\"products eael-post-appender eael-post-appender-186d982\" 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 fetchpriority=\"high\" 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 Protection Height Safety Light Curtain Sensor\" 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 Protection Height Safety Light Curtain Sensor<\/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 &ldquo;200 mm Protection Height Safety Light Curtain Sensor&rdquo;\" rel=\"nofollow\" data-success_message=\"\">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\/120-mm-protection-height-small-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\/120-mm-protection-height-small-safety-light-curtain-300x300.jpg\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail wvs-archive-product-image\" alt=\"120 mm protection height small safety light curtain\" loading=\"eager\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/08\/120-mm-protection-height-small-safety-light-curtain-300x300.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/08\/120-mm-protection-height-small-safety-light-curtain-150x150.jpg 150w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/08\/120-mm-protection-height-small-safety-light-curtain-600x600.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/08\/120-mm-protection-height-small-safety-light-curtain-100x100.jpg 100w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/08\/120-mm-protection-height-small-safety-light-curtain-64x64.jpg 64w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/08\/120-mm-protection-height-small-safety-light-curtain.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\/120-mm-protection-height-small-safety-light-curtain\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><h3 class=\"woocommerce-loop-product__title\">120 mm Protection Height Small Safety Light Curtain<\/h3><\/a>\n    <\/div>    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/proximity-sensor\/safety-light-curtain\/120-mm-protection-height-small-safety-light-curtain\/\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_11882\" data-quantity=\"1\" class=\"button product_type_simple\" data-product_id=\"11882\" data-product_sku=\"\" aria-label=\"En savoir plus sur &ldquo;120 mm Protection Height Small Safety Light Curtain&rdquo;\" rel=\"nofollow\" data-success_message=\"\">Lire la suite<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_11882\" 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-guard-1160-mm-protection-height-relay-or-transistor-output\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><img decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/08\/1160mm-protection-height-safety-light-curtain-1-300x300.jpg\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail wvs-archive-product-image\" alt=\"Safety Light Guard, 1160 Protection Height, Relay Or Transistor Output\" loading=\"eager\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/08\/1160mm-protection-height-safety-light-curtain-1-300x300.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/08\/1160mm-protection-height-safety-light-curtain-1-150x150.jpg 150w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/08\/1160mm-protection-height-safety-light-curtain-1-600x600.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/08\/1160mm-protection-height-safety-light-curtain-1-100x100.jpg 100w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/08\/1160mm-protection-height-safety-light-curtain-1-64x64.jpg 64w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/08\/1160mm-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\/safety-light-guard-1160-mm-protection-height-relay-or-transistor-output\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><h3 class=\"woocommerce-loop-product__title\">Safety Light Guard, 1160 mm Protection Height, Relay Or Transistor Output<\/h3><\/a>\n    <\/div>    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/proximity-sensor\/safety-light-curtain\/safety-light-guard-1160-mm-protection-height-relay-or-transistor-output\/\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_11848\" data-quantity=\"1\" class=\"button product_type_simple\" data-product_id=\"11848\" data-product_sku=\"\" aria-label=\"En savoir plus sur &ldquo;Safety Light Guard, 1160 mm Protection Height, Relay Or Transistor Output&rdquo;\" rel=\"nofollow\" data-success_message=\"\">Lire la suite<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_11848\" 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=\"Safety Light Grid for Machinery\" 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\">Safety Light Grid for Machinery, 1240 mm Protection Height<\/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 &ldquo;Safety Light Grid for Machinery, 1240 mm Protection Height&rdquo;\" rel=\"nofollow\" data-success_message=\"\">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-186d982\");\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                        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table of contents\"><i aria-hidden=\"true\" class=\"fas fa-chevron-down\"><\/i><\/div>\n\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--collapse\" role=\"button\" tabindex=\"0\" aria-controls=\"elementor-toc__31fbd33\" aria-expanded=\"true\" aria-label=\"Close table of contents\"><i aria-hidden=\"true\" class=\"fas fa-chevron-up\"><\/i><\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<div id=\"elementor-toc__31fbd33\" class=\"elementor-toc__body\">\n\t\t\t<div class=\"elementor-toc__spinner-container\">\n\t\t\t\t<i class=\"elementor-toc__spinner eicon-animation-spin eicon-loading\" aria-hidden=\"true\"><\/i>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-77f4abb elementor-widget elementor-widget-heading\" data-id=\"77f4abb\" 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\">What Is ESPE(AOPD)?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e02872d elementor-widget elementor-widget-text-editor\" data-id=\"e02872d\" 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;\">The<\/span><b> ESPE(AOPD)<\/b><span style=\"font-weight: 400;\"> is the abbreviation of <\/span><b>Electro-Sensitive Protective Equipment(Active Opto-Electronic Protective Device)<\/b><span style=\"font-weight: 400;\">. In the safety light curtain, ESPE refers to a type of safety device that uses light beams(infrared light) to detect the presence of objects or people in a hazardous area, thereby providing protection against potential injury. When an object interrupts the light beam, the ESPE detects this interruption and sends a signal to stop or prevent the motion of the machine, ensuring safety.<\/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-eaa0fdf elementor-widget elementor-widget-heading\" data-id=\"eaa0fdf\" 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\">What Are SIL 2 and SIL 3?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0a626f9 elementor-widget elementor-widget-text-editor\" data-id=\"0a626f9\" 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;\">SIL 2 and SIL 3 are the safety protection levels in safety light curtains. The higher the level, the safer it is. We will introduce them one by one below.<\/span><\/p><p><span style=\"font-weight: 400;\">SIL 2, which stands for &#8220;Safety Integrity Level 2,&#8221; is the second level of safety integrity as defined by the international standard <\/span><span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/www.tuvsud.com\/en-us\/services\/functional-safety\/iec-61508\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">IEC 61508<\/span><\/a><\/span><span style=\"font-weight: 400;\"> for electrical and electronic safety-related systems.<\/span><\/p><p style=\"text-align: left;\"><span style=\"font-weight: 400;\">SIL 3\u00a0 is Safety Integrity Level 3,\u00a0 this is the highest safety integrity level defined in the<\/span><span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/www.tuvsud.com\/en-us\/services\/functional-safety\/iec-61508\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\"> IEC 61508 <\/span><\/a><\/span><span style=\"font-weight: 400;\">standard. It is used to classify the safety performance required for safety functions in safety-related systems. SIL 3 requires very high reliability to ensure that the safety function operates properly when required.<\/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-de3069a elementor-widget elementor-widget-heading\" data-id=\"de3069a\" 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\">What Are Category 2 and Category 4?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9657771 elementor-widget elementor-widget-text-editor\" data-id=\"9657771\" 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;\">Category 2 and Category 4, also known as Type 2 and Type 4, are used in machinery safety and risk assessment. These terms are often<\/span><span style=\"font-weight: 400;\"> used in the context of the <\/span><a href=\"https:\/\/www.iso.org\/standard\/73481.html\"><span style=\"font-weight: 400;\">ISO 13849<\/span><\/a><span style=\"font-weight: 400;\">. <\/span><span style=\"font-weight: 400;\">Category 4 is the highest category and is used for machinery or systems where the risk assessment indicates that the highest level of safety measures is required.\u00a0<\/span><\/p><p><span style=\"font-weight: 400;\">Here below is the advantages and disadvantages of category 2 and category 4 safety light curtains, also you can get more knowledge from our this article:<\/span><span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/lorentzzi.com\/safety-light-curtain-types-type-2-and-type-4-differences\/\"><span style=\"font-weight: 400;\">Safety Light Curtain Types: Type 2 and Type 4 Differences<\/span><\/a><\/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-c533166 elementor-widget elementor-widget-image\" data-id=\"c533166\" 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=\"768\" height=\"384\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2024\/07\/Category-2-and-category-4-safety-light-curtains-comparasion-768x384.jpg\" class=\"attachment-medium_large size-medium_large wp-image-13616\" alt=\"Category 2 and category 4 safety light curtains comparasion\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2024\/07\/Category-2-and-category-4-safety-light-curtains-comparasion-768x384.jpg 768w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2024\/07\/Category-2-and-category-4-safety-light-curtains-comparasion-300x150.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2024\/07\/Category-2-and-category-4-safety-light-curtains-comparasion-600x300.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2024\/07\/Category-2-and-category-4-safety-light-curtains-comparasion-64x32.jpg 64w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2024\/07\/Category-2-and-category-4-safety-light-curtains-comparasion.jpg 1024w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\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-44a94b6 elementor-widget elementor-widget-heading\" data-id=\"44a94b6\" 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\">What Is PL e?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a13a791 elementor-widget elementor-widget-text-editor\" data-id=\"a13a791\" 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;\">PL e is <\/span><b>Performance Level e<\/b><span style=\"font-weight: 400;\">. This is a performance level defined in the<\/span><span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/www.iso.org\/standard\/73481.html\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\"> ISO 13849<\/span><\/a><\/span><span style=\"font-weight: 400;\"> standard and is similar to SIL 3 in terms of the required safety level. Performance Level e requires a higher level of safety performance and is intended for machinery or systems where a risk assessment has determined that this level of safety is required.<\/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-0d11224 elementor-widget elementor-widget-heading\" data-id=\"0d11224\" 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\">What Is EDM?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6665b0d elementor-widget elementor-widget-text-editor\" data-id=\"6665b0d\" 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;\">EDM in the safety light curtain is the abbreviation of &#8220;<strong>External Device Monitor<\/strong>&#8220;. The EDM function is mainly used to monitor the working status of devices such as external safety relays or contactors connected to the safety light curtain to ensure that they can normally cut off the circuit in an emergency, thereby playing a safety protection role. If an external relay or contactor fails, such as the contact sticking and unable to disconnect, EDM can detect this abnormality and trigger the alarm, causing the equipment to shut down until the fault is eliminated.<\/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-9f11d99 elementor-widget elementor-widget-image\" data-id=\"9f11d99\" 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=\"640\" height=\"404\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2024\/07\/How-EDM-works-normal-status.jpg\" class=\"attachment-medium_large size-medium_large wp-image-13617\" alt=\"\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2024\/07\/How-EDM-works-normal-status.jpg 640w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2024\/07\/How-EDM-works-normal-status-300x189.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2024\/07\/How-EDM-works-normal-status-600x379.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2024\/07\/How-EDM-works-normal-status-64x40.jpg 64w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/>\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-c6dd45a elementor-widget elementor-widget-text-editor\" data-id=\"c6dd45a\" 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;\">For example, the above figure shows the operation of the EDM after OSSD 1 or OSSD 2 is worn and stuck. Once one or both contacts are stuck, the EDM contacts will not return to the non-operating state, but will remain in the normally open state, which means that the OSSD 1 or OSSD 2 contacts are not working properly. The safety light curtain will receive this signal and shut down the machine to avoid potential risks.<\/span><\/p><p><span style=\"font-weight: 400;\">Specifically, the EDM function can continuously monitor whether a specific voltage is applied to the external relay monitoring input line on the safety grating photoreceiver side, and put the safety grating into a locked state when an abnormality is detected. For example, within 300ms after the control output changes from ON to OFF, if the normally closed contact of the external relay has not been closed, that is, the specified voltage is not applied to the external relay monitoring input line, EDM will determine that it is an error and put the safety light curtain into a locked state.<\/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-b22aa29 elementor-widget elementor-widget-video\" data-id=\"b22aa29\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/youtu.be\\\/rcFsPuz5KjQ&quot;,&quot;video_type&quot;:&quot;youtube&quot;,&quot;controls&quot;:&quot;yes&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<div class=\"elementor-video\"><\/div>\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cc97329 elementor-widget elementor-widget-heading\" data-id=\"cc97329\" 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\">What Are Muting, Blanking And Interlock?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d44195a elementor-widget elementor-widget-text-editor\" data-id=\"d44195a\" 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><b>Muting<\/b><span style=\"font-weight: 400;\">: Muting is a function that allows a specific area of the light curtain to be <\/span><b>temporarily ignored<\/b><span style=\"font-weight: 400;\"> by the control system. It is used when there is a need to pass through the light curtain without stopping the machine. Muting is typically used for areas where the risk of injury is low, and it is a temporary solution to allow safe passage.\u00a0<\/span><\/p><p><span style=\"font-weight: 400;\">Muting function is generally used to justify the materials or person in a conveyor belt system, this function allows the materials to go from hazardous area to the safe area without stopping and disallows people from going from safe area to the dangerous area. This function realization is based on the correct time and space sequence.<\/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-978dbaa elementor-widget elementor-widget-image\" data-id=\"978dbaa\" 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=\"768\" height=\"384\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2024\/07\/Safety-light-curtain-muting-explanation-768x384.jpg\" class=\"attachment-medium_large size-medium_large wp-image-13618\" alt=\"Safety light curtain muting explanation\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2024\/07\/Safety-light-curtain-muting-explanation-768x384.jpg 768w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2024\/07\/Safety-light-curtain-muting-explanation-300x150.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2024\/07\/Safety-light-curtain-muting-explanation-600x300.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2024\/07\/Safety-light-curtain-muting-explanation-64x32.jpg 64w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2024\/07\/Safety-light-curtain-muting-explanation.jpg 1024w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\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-8633bcf elementor-widget elementor-widget-text-editor\" data-id=\"8633bcf\" 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><b>Blanking<\/b><span style=\"font-weight: 400;\">:Similar to muting, blanking is a function that disables a specific area of the light curtain. However, the difference is that blanking is a <\/span><b>permanent or long-term solution<\/b><span style=\"font-weight: 400;\">. Blanking can be divided into 3 types, namely fixed blanking, floating blanking and fixed+floating blanking. This function is widely used in pressing machines to make the processed metal out of the pressing machine easily in the blanking area but at the same time protecting workers from outside.<\/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-89d7192 elementor-widget elementor-widget-image\" data-id=\"89d7192\" 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=\"768\" height=\"384\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2024\/07\/Safety-light-curtain-blanking-explanation-768x384.jpg\" class=\"attachment-medium_large size-medium_large wp-image-13619\" alt=\"\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2024\/07\/Safety-light-curtain-blanking-explanation-768x384.jpg 768w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2024\/07\/Safety-light-curtain-blanking-explanation-300x150.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2024\/07\/Safety-light-curtain-blanking-explanation-600x300.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2024\/07\/Safety-light-curtain-blanking-explanation-64x32.jpg 64w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2024\/07\/Safety-light-curtain-blanking-explanation.jpg 1024w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\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-00bb086 elementor-widget elementor-widget-text-editor\" data-id=\"00bb086\" 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><b>Interlock<\/b><span style=\"font-weight: 400;\">: An interlock function is a safety mechanism that requires the light curtain to be intact for the machine to operate. If the light curtain is broken (i.e., the light beams are interrupted), the interlock will stop the machine or equipment immediately. This is a crucial safety feature to prevent accidents by ensuring that the machine cannot operate unless the light curtain is fully functional. This function can be reset by manual or auto operation in a safety light curtain.<\/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-75ee92f elementor-widget elementor-widget-heading\" data-id=\"75ee92f\" 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\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4610743 elementor-widget elementor-widget-text-editor\" data-id=\"4610743\" 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;\">By reading the above, we think you now have a deeper understanding of safety light curtains.<\/span><\/p><p><span style=\"font-weight: 400;\">We, <\/span><span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/lorentzzi.com\/\"><span style=\"font-weight: 400;\">Lorentzzi<\/span><\/a><\/span><span style=\"font-weight: 400;\">, a Chinese safety light curtain manufacturer, have a professional team to develop and produce a variety of <\/span><span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/lorentzzi.com\/safety-light-curtain-sensor\/\"><span style=\"font-weight: 400;\">Type 2 and Type 4 safety light curtains<\/span><\/a><\/span><span style=\"font-weight: 400;\"> in different lengths with enthusiasm and excellent quality. If you are looking for a safety light curtain manufacturer now, choosing us is your best choice.<\/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>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Safety light curtains not only protect workers from dangerous machines in an invisible way, but also save time when frequently opening or closing guardrails manually. The first safety light curtain was developed by Erwin Sick, who subsequently founded the SICK &#8211; a well-known German sensor manufacturer. As a beginner of safety light curtains, you may [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":13613,"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":"disabled","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-13611","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>Safety Light Curtain Terms Explanation: 6 Terms You Must Know<\/title>\n<meta name=\"description\" content=\"Safety light curtain is an important protection device in the automation control system. What is its working principle? What are its terms?\" \/>\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\/safety-light-curtain-terms-explanation-6-terms-you-must-know\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Safety Light Curtain Terms Explanation: 6 Terms You Must Know\" \/>\n<meta property=\"og:description\" content=\"Safety light curtain is an important protection device in the automation control system. What is its working principle? 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