{"id":5429,"date":"2026-08-15T08:00:00","date_gmt":"2026-08-15T00:00:00","guid":{"rendered":"https:\/\/www.aox-actuator.com\/?p=5429"},"modified":"2026-08-31T17:33:15","modified_gmt":"2026-08-31T09:33:15","slug":"wire-electric-actuator-4-20ma-signal-control","status":"publish","type":"post","link":"https:\/\/www.aox-actuator.com\/fr\/blog\/technical-guides\/wire-electric-actuator-4-20ma-signal-control\/","title":{"rendered":"Comment c\u00e2bler un actionneur \u00e9lectrique pour un contr\u00f4le par signal 4-20mA ?"},"content":{"rendered":"<h2 class=\"wp-block-heading\"><strong>R\u00e9ponse rapide<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Pour c\u00e2bler un signal 4-20mA d'actionneur \u00e9lectrique, connectez la borne positive du contr\u00f4leur \u00e0 l'entr\u00e9e analogique positive de l'actionneur conform\u00e9ment au sch\u00e9ma de c\u00e2blage du fabricant. Compl\u00e9tez la boucle analogique en renvoyant le fil de retour \u00e0 la borne n\u00e9gative du contr\u00f4leur.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le mauvais agencement de la boucle de commande dans une usine de traitement humide entra\u00eenera une d\u00e9rive du signal, causant une usure pr\u00e9matur\u00e9e des vannes. L'installation doit utiliser un c\u00e2blage torsad\u00e9 blind\u00e9 pour \u00e9viter toute perturbation due \u00e0 des interf\u00e9rences \u00e9lectromagn\u00e9tiques dans le fonctionnement de l'actionneur.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"680\" src=\"https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image5-1-1200x680.webp\" alt=\"Actionneur de vanne \u00e9lectrique AOX pour un contr\u00f4le pr\u00e9cis du signal 4\u201120 mA\" class=\"wp-image-5430\" srcset=\"https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image5-1-1200x680.webp 1200w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image5-1-500x283.webp 500w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image5-1-300x170.webp 300w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image5-1-768x435.webp 768w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image5-1-1536x870.webp 1536w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image5-1-18x10.webp 18w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image5-1-132x75.webp 132w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image5-1-480x272.webp 480w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image5-1-800x453.webp 800w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image5-1.webp 1667w\" sizes=\"auto, (max-width:767px) 480px, (max-width:1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Qu'est-ce que le contr\u00f4le 4-20mA pour les actionneurs \u00e9lectriques ?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Un <a href=\"https:\/\/www.aox-actuator.com\/fr\/product\/aox-vr-series-electric-actuator\/\" target=\"_blank\" rel=\"noreferrer noopener\">syst\u00e8me de contr\u00f4le 4-20mA pour actionneur \u00e9lectrique<\/a> est couramment appliqu\u00e9 dans l'automatisation des processus en raison de l'immunit\u00e9 du signal de courant aux chutes de tension sur de longs c\u00e2bles. Un c\u00e2blage correct de l'actionneur \u00e9lectrique 4-20mA garantit que la carte de contr\u00f4le re\u00e7oit une commande de position pr\u00e9cise.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L'utilisation de cosses pr\u00e9-isol\u00e9es pour la terminaison de la carte de connexion aidera \u00e0 prot\u00e9ger la carte des fils effiloch\u00e9s.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Comment fonctionne le contr\u00f4le de modulation 4-20mA<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Le signal de l'actionneur \u00e9lectrique de modulation met en correspondance la position de la vanne lin\u00e9airement sur une plage de 16mA. Dans les configurations standard, 4mA repr\u00e9sente une vanne compl\u00e8tement ferm\u00e9e (course 0%), tandis que 20mA correspond \u00e0 une vanne compl\u00e8tement ouverte (course 100%).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les signaux de milieu de gamme, tels que 12mA, correspondent g\u00e9n\u00e9ralement \u00e0 une course de 50% dans une configuration lin\u00e9aire, bien que les configurations \u00e0 action invers\u00e9e puissent inverser la r\u00e9ponse. Le microprocesseur interne de l'actionneur surveille ce courant et entra\u00eene le <a href=\"https:\/\/www.aox-actuator.com\/fr\/blog\/how-gearbox-reducer-work\/\" target=\"_blank\" rel=\"noreferrer noopener\">moteur d'engrenage <\/a>pour faire correspondre pr\u00e9cis\u00e9ment cette valeur analogique. L'utilisation de signaux de courant analogiques standardis\u00e9s dans la mesure et le contr\u00f4le des processus industriels est couverte par la norme CEI 60381-1.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Sch\u00e9ma de c\u00e2blage : Connexion 4-20mA \u00e0 l'actionneur \u00e9lectrique<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u00c0 l'int\u00e9rieur du bo\u00eetier, les blocs de jonction se connectent directement \u00e0 la carte de positionneur de vanne 4-20mA int\u00e9gr\u00e9e. D\u00e9nudez la gaine ext\u00e9rieure sur la longueur sp\u00e9cifi\u00e9e par le fabricant pour permettre une flexibilit\u00e9 suffisante du fil sans exposer les conducteurs nus.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"626\" src=\"https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image1-1200x626.webp\" alt=\"Sch\u00e9ma de c\u00e2blage \u00e9tape par \u00e9tape de l&#039;actionneur de vanne \u00e9lectrique 4\u201120 mA\" class=\"wp-image-5431\" srcset=\"https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image1-1200x626.webp 1200w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image1-500x261.webp 500w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image1-300x156.webp 300w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image1-768x401.webp 768w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image1-1536x801.webp 1536w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image1-18x9.webp 18w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image1-144x75.webp 144w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image1-480x250.webp 480w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image1-800x417.webp 800w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image1.webp 1737w\" sizes=\"auto, (max-width:767px) 480px, (max-width:1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">G\u00e9n\u00e9ralement, mettez \u00e0 la terre le blindage de la paire torsad\u00e9e \u00e0 l'extr\u00e9mit\u00e9 de l'API pour r\u00e9duire le risque d'interf\u00e9rences de boucle de masse. Inspectez toujours le joint du bo\u00eetier et nettoyez les surfaces d'\u00e9tanch\u00e9it\u00e9 avant de serrer le couvercle pour \u00e9viter toute infiltration d'humidit\u00e9.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>4-20mA vs 0-10V vs Modbus : Comparaison des signaux<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Contrairement aux signaux de tension qui souffrent de chutes de ligne, les boucles de courant sont fiables sur de vastes installations. Les protocoles num\u00e9riques comme Modbus offrent des diagnostics plus riches mais n\u00e9cessitent un adressage complexe, ce qui rend les boucles analogiques plus simples.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Type de signal<\/strong><\/td><td><strong>Immunit\u00e9 au bruit<\/strong><\/td><td><strong>Limite de distance<\/strong><\/td><td><strong>Complexit\u00e9 du mat\u00e9riel<\/strong><\/td><td><strong>Meilleure utilisation<\/strong><\/td><\/tr><tr><td><strong>Courant 4-20mA<\/strong><\/td><td>Excellent<\/td><td>\u00c9lev\u00e9e (limit\u00e9e par la r\u00e9sistance)<\/td><td>Faible (simple 2 fils)<\/td><td>Traitement chimique intensif<\/td><\/tr><tr><td><strong>Tension 0-10V<\/strong><\/td><td>Pauvre<\/td><td>Tr\u00e8s courte (sensible aux chutes de tension)<\/td><td>Faible (n\u00e9cessite une masse commune)<\/td><td>CVC et salles blanches<\/td><\/tr><tr><td><strong>Modbus RTU<\/strong><\/td><td>Excellent<\/td><td>Longue (d\u00e9pend du transmetteur RS-485)<\/td><td>Moyenne (n\u00e9cessite une configuration du contr\u00f4leur)<\/td><td>R\u00e9seaux multi-appareils<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Ce tableau compare les param\u00e8tres cl\u00e9s pour vous aider \u00e0 s\u00e9lectionner la m\u00e9thode de contr\u00f4le la plus efficace pour votre boucle de processus. Les usines de processus privil\u00e9gient la signalisation de courant pour maintenir une communication fiable et sans interf\u00e9rences sur de longues distances.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Probl\u00e8mes de c\u00e2blage courants et d\u00e9pannages<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"626\" src=\"https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image2-1-1200x626.webp\" alt=\"Tableau de d\u00e9pannage du signal 4\u201120 mA pour les actionneurs de vanne \u00e9lectriques\" class=\"wp-image-5432\" srcset=\"https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image2-1-1200x626.webp 1200w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image2-1-500x261.webp 500w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image2-1-300x157.webp 300w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image2-1-768x401.webp 768w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image2-1-1536x802.webp 1536w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image2-1-18x9.webp 18w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image2-1-144x75.webp 144w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image2-1-480x251.webp 480w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image2-1-800x418.webp 800w, https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2026\/08\/image2-1.webp 1736w\" sizes=\"auto, (max-width:767px) 480px, (max-width:1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">La mise en service sur site r\u00e9v\u00e8le souvent des erreurs de c\u00e2blage qui retardent les calendriers de d\u00e9marrage de l'usine. Un courant de boucle de 0mA indique une rupture physique dans le circuit, tandis qu'un faible courant sugg\u00e8re des jonctions \u00e0 haute r\u00e9sistance ou des terminaisons m\u00e9diocres.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Si le signal est pr\u00e9sent mais que le comportement de la vanne est instable, v\u00e9rifiez les boucles de masse du blindage ou les interf\u00e9rences des c\u00e2bles d'alimentation AC adjacents. L'humidit\u00e9 ou la condensation interne sur les cartes de connexion peuvent provoquer des <a href=\"https:\/\/www.aox-actuator.com\/fr\/blog\/actuator-valve-not-working-signs\/\" target=\"_blank\" rel=\"noreferrer noopener\">d\u00e9rives de signal<\/a> inattendues dans les zones humides.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Guide d'int\u00e9gration PLC pour actionneurs 4-20mA<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">L'int\u00e9gration d'un appareil 4-20mA d'actionneur \u00e9lectrique dans un syst\u00e8me PLC n\u00e9cessite de faire correspondre l'alimentation \u00e9lectrique \u00e0 l'imp\u00e9dance de la boucle. La conception d'une boucle de commande d'actionneur \u00e9lectrique fiable <a href=\"https:\/\/www.aox-actuator.com\/fr\/blog\/control-valve-modulation-onoff\/\" target=\"_blank\" rel=\"noreferrer noopener\">boucle de commande<\/a> n\u00e9cessite le calcul de la r\u00e9sistance totale pour assurer la capacit\u00e9 du pilote.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pour calculer la tension d'alimentation minimale requise pour la boucle, multipliez le courant maximal de 20mA par la r\u00e9sistance totale de la boucle et ajoutez la marge de fonctionnement requise par l'actionneur. Si ce total d\u00e9passe les limites de tension d'entra\u00eenement de l'\u00e9metteur, un \u00e9cr\u00eatage du signal se produit dans la plage sup\u00e9rieure et emp\u00eache la course compl\u00e8te de la vanne.<\/p>\n\n\n\n<style>\n  .hero-recommendation-vertical {\n    max-width: 420px;\n    margin: 32px auto;\n    background: #fff;\n    border-radius: 16px;\n    box-shadow: 0 4px 18px 0 rgba(60, 66, 87, 0.10);\n    overflow: hidden;\n    transition: box-shadow 0.2s;\n  }\n  .hero-link-vertical {\n    display: flex;\n    flex-direction: column;\n    align-items: center;\n    text-decoration: none;\n    color: inherit;\n    width: 100%;\n    transition: background 0.2s;\n  }\n  .hero-link-vertical:hover {\n    background: #f8f9fa;\n  }\n  .hero-image-vertical img {\n    display: block;\n    width: 100%;\n    height: 210px;\n    object-fit: cover;\n    background: #f4f4f4;\n  }\n  .hero-content-vertical {\n    padding: 28px 22px 24px 22px;\n    text-align: center;\n    width: 100%;\n  }\n  .hero-content-vertical h2 {\n    margin: 0 0 12px 0;\n    font-size: 1.3rem;\n    font-weight: 700;\n    color: #263238;\n    letter-spacing: 0.01rem;\n  }\n  .hero-content-vertical p {\n    margin: 0 0 18px 0;\n    font-size: 1rem;\n    color: #546e7a;\n    line-height: 1.5;\n  }\n  .hero-btn-vertical {\n    padding: 10px 26px;\n    background: #ffc107; \/* Changed button background color *\/\n    border: none;\n    border-radius: 6px;\n    font-size: 1rem;\n    font-weight: 600;\n    color: #fff;\n    cursor: pointer;\n    transition: background 0.2s, color 0.2s;\n    box-shadow: 0 2px 8px rgba(255,193,7,0.10); \/* Adjusted shadow color *\/\n  }\n  .hero-btn-vertical:hover {\n    background: #e0a800; \/* Darkened color for hover effect (approx 10-15%) *\/\n  }\n  @media (max-width: 600px) {\n    .hero-recommendation-vertical {\n      max-width: 98vw;\n    }\n    .hero-image-vertical img {\n      height: 160px;\n    }\n    .hero-content-vertical {\n      padding: 18px 8px 16px 8px;\n    }\n  }\n<\/style>\n<div class=\"hero-recommendation-vertical\">\n  <a href=\"https:\/\/www.aox-actuator.com\/fr\/product\/aox-vr-series-electric-actuator\/\" class=\"hero-link-vertical\" target=\"_blank\" rel=\"noopener\">\n    <div class=\"hero-image-vertical\">\n      <img decoding=\"async\" src=\"https:\/\/www.aox-actuator.com\/wp-content\/uploads\/2024\/09\/AOX-VR-series-electric-actuator.webp\" alt=\"Actionneur de vanne \u00e9lectrique s\u00e9rie AOX-VR\">\n    <\/div>\n    <div class=\"hero-content-vertical\">\n      <p><strong>Actionneur de vanne \u00e9lectrique s\u00e9rie AOX-VR<\/strong><\/p>\n      <p>\n      La s\u00e9rie \u201cAOX-VR\u201d pr\u00e9sente une structure compacte avec une excellente r\u00e9sistance aux intemp\u00e9ries et aux chocs.\n      <\/p>\n      <button class=\"hero-btn-vertical\">Explorer les produits et solutions<\/button>\n    <\/div>\n  <\/a>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Conclusion<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">L'installation correcte de votre boucle 4-20mA d'actionneur \u00e9lectrique \u00e9vite les temps d'arr\u00eat op\u00e9rationnels et maintient un contr\u00f4le pr\u00e9cis des fluides. V\u00e9rifiez l'imp\u00e9dance de la boucle et la marge avant de mettre le circuit sous tension pour garantir des performances \u00e0 long terme.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Lors de la mise \u00e0 niveau, envisagez de vous associer \u00e0 un fabricant qui propose des <a href=\"https:\/\/www.aox-actuator.com\/fr\/product-category\/electric-actuator\/\" target=\"_blank\" rel=\"noreferrer noopener\">actionneurs de vannes \u00e9lectriques<\/a>. hautes performances.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>FAQ<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>1.<\/strong> <strong>Cette approche proactive r\u00e9duit le temps de d\u00e9pannage et garantit une int\u00e9gration transparente avec votre mat\u00e9riel existant.<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Le c\u00e2blage des boucles de courant en parall\u00e8le divise le courant du signal entre les appareils, ce qui emp\u00eache un calibrage correct et peut entra\u00eener des lectures incorrectes ou des d\u00e9fauts de boucle. Une boucle de courant conventionnelle de 4-20 mA est c\u00e2bl\u00e9e en s\u00e9rie afin que le m\u00eame courant traverse chaque appareil de la boucle.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>2.<\/strong> <strong>Le fil de blindage doit-il \u00eatre mis \u00e0 la terre aux deux extr\u00e9mit\u00e9s ?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">G\u00e9n\u00e9ralement, mettez le blindage \u00e0 la terre \u00e0 une extr\u00e9mit\u00e9, souvent du c\u00f4t\u00e9 de l'armoire PLC, pour r\u00e9duire le risque d'interf\u00e9rences de boucle de masse. La mise \u00e0 la terre des deux extr\u00e9mit\u00e9s cr\u00e9e un chemin \u00e9lectrique qui peut introduire du bruit dans le signal de commande.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Comment v\u00e9rifier si la boucle analogique fonctionne ?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Utilisez un multim\u00e8tre num\u00e9rique en s\u00e9rie pour mesurer le courant sur le circuit actif. V\u00e9rifiez que 4 mA positionnent la vanne \u00e0 0%, 12 mA la positionnent \u00e0 50% et 20 mA l'am\u00e8nent \u00e0 100% ouverte.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-fe48e5de wp-block-buttons-is-layout-flex\">\n<div style=\"--wp--block-button--width: 50;\" class=\"wp-block-button has-custom-width wp-block-button__width wp-block-button__width-50\"><a class=\"wp-block-button__link has-white-color has-text-color has-background has-link-color has-medium-font-size has-custom-font-size wp-element-button\" href=\"https:\/\/www.aox-actuator.com\/fr\/contact\/\" style=\"background-color:#ffc107;font-style:normal;font-weight:700\" target=\"_blank\" rel=\"noreferrer noopener\">Contactez-nous<\/a><\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Quick Answer To wire an electric actuator 4-20mA signal, connect the controller&#8217;s positive terminal to the actuator&#8217;s positive analog input according to the manufacturer&#8217;s wiring diagram.<span class=\"excerpt-hellip\"> [\u2026]<\/span><\/p>\n","protected":false},"author":1,"featured_media":5430,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[72],"tags":[],"class_list":["post-5429","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technical-guides"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Electric Actuator 4-20mA Wiring Guide | AOX<\/title>\n<meta name=\"description\" content=\"Learn how to wire an electric actuator for 4-20mA signal control. This guide covers wiring diagrams, PLC integration, signal comparison, and common troubleshooting tips.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.aox-actuator.com\/fr\/blog\/technical-guides\/wire-electric-actuator-4-20ma-signal-control\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Electric Actuator 4-20mA Wiring Guide | AOX\" \/>\n<meta property=\"og:description\" content=\"Learn how to wire an electric actuator for 4-20mA signal control. 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