{"id":6528,"date":"2023-09-18T17:40:36","date_gmt":"2023-09-18T09:40:36","guid":{"rendered":"https:\/\/www.dcl-controls.com\/?p=6528"},"modified":"2025-04-18T14:33:56","modified_gmt":"2025-04-18T06:33:56","slug":"actuator-immunity-4-20ma-vs-2-10v","status":"publish","type":"post","link":"https:\/\/www.dcl-controls.com\/pt_pt\/support\/ta-actuator\/actuator-immunity-4-20ma-vs-2-10v","title":{"rendered":"Grande concorr\u00eancia para anti-interfer\u00eancia de desempenho dos atuadores el\u00e9tricos (4-20mA VS 2-10V)"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"6528\" class=\"elementor elementor-6528\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-c4425ee elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"c4425ee\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-592bf2f\" data-id=\"592bf2f\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-2d2988c elementor-widget elementor-widget-text-editor\" data-id=\"2d2988c\" data-element_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>Na aplica\u00e7\u00e3o de anti-interfer\u00eancia de atuadores el\u00e9tricos, o anti-interfer\u00eancia desempenho usando uma anal\u00f3gica de 4-20mA sinal \u00e9 muito melhor do que usando uma 2-10 V sinal anal\u00f3gico. Por qu\u00ea?<\/p><ul><li><a href=\"#2-10v\"><span style=\"text-decoration: underline;\">2-10V an\u00e1lise de sinal<\/span><\/a><\/li><li><a href=\"#ff\"><span style=\"text-decoration: underline;\">Sinal de 4-20mA an\u00e1lise<\/span><\/a><\/li><li><span style=\"text-decoration: underline;\">conclus\u00e3o<\/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-dbd312d elementor-widget elementor-widget-heading\" data-id=\"dbd312d\" data-element_type=\"widget\" id=\"2-10v\" 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\">2-10V an\u00e1lise de sinal<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a6737d1 elementor-widget elementor-widget-image\" data-id=\"a6737d1\" data-element_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=\"1920\" height=\"1027\" src=\"https:\/\/www.dcl-controls.com\/content\/dam\/tech\/images\/dcl-2-10v-cn.webp\" class=\"attachment-full size-full wp-image-6532\" alt=\"2-10V\u6297\u5e72\u6270\u793a\u610f\u56fe\uff08DCL \u534e\u6613\u667a\u63a7\uff09\" srcset=\"https:\/\/www.dcl-controls.com\/content\/dam\/tech\/images\/dcl-2-10v-cn.webp 1920w, https:\/\/www.dcl-controls.com\/content\/dam\/tech\/images\/dcl-2-10v-cn-1536x822.webp 1536w, https:\/\/www.dcl-controls.com\/content\/dam\/tech\/images\/dcl-2-10v-cn-18x10.webp 18w\" sizes=\"(max-width: 1920px) 100vw, 1920px\" \/>\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-0362964 elementor-widget elementor-widget-text-editor\" data-id=\"0362964\" data-element_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>Como mostrado na imagem acima\uff1a<\/p><ol><li>Quando usamos 2-10V, devido \u00e0 alta resist\u00eancia de entrada do m\u00f3dulo (R=34K), o sinal de entrada de corrente \u00e9 muito baixa (0.059 mA-0.29 mA). Como resultado, o sinal-para-ru\u00eddo, este caminho \u00e9 muito baixa, o que significa que a condu\u00e7\u00e3o e radia\u00e7\u00e3o anti-interfer\u00eancia, o desempenho \u00e9 ruim. Em outras palavras, a partir de uma perspectiva de design eletr\u00f4nico, esta \u00e9 a parte mais vulner\u00e1vel.<\/li><li>No 2-10V caminho do sinal, o dispositivo de sa\u00edda s\u00f3 pode garantir a exatid\u00e3o da tens\u00e3o de sa\u00edda (Vo) do controlador de lado (porque a tens\u00e3o de realimenta\u00e7\u00e3o ponto \u00e9 perto do pino de sa\u00edda). Pelo contr\u00e1rio, a tens\u00e3o de entrada (Vi) no atuador lado, n\u00e3o podem ser garantidos, para ser correto, porque Vi=Vo+Vnoise+Vground-diff, Vnoise e Vground diferen\u00e7as s\u00e3o muito suscet\u00edveis a interfer\u00eancias e produzir altera\u00e7\u00f5es transit\u00f3rias, que n\u00e3o pode ser evitado.<\/li><li>O comprimento, a resist\u00eancia interna e a protec\u00e7\u00e3o medidas de 2-10 V o cabo de sinal ir\u00e1 afectar significativamente o desempenho antiparasit\u00e1rio de 2-10 V sinal. O maior o cabo, maior a resist\u00eancia interna do cabo, e o pior a blindagem medidas, o pior anti-interfer\u00eancia de desempenho de 2-10 V sinal. Portanto, 2-10V \u00e9 comumente usado para a comunica\u00e7\u00e3o de curto alcance.<\/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-b3d927a elementor-widget elementor-widget-heading\" data-id=\"b3d927a\" data-element_type=\"widget\" id=\"4-20ma\" 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\">Sinal de 4-20mA an\u00e1lise<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-52bf554 elementor-widget elementor-widget-image\" data-id=\"52bf554\" data-element_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=\"1920\" height=\"1026\" src=\"https:\/\/www.dcl-controls.com\/content\/dam\/tech\/images\/dcl-4-20ma-cn.webp\" class=\"attachment-full size-full wp-image-6530\" alt=\"4-20mA\u6297\u5e72\u6270\u793a\u610f\u56fe\uff08DCL \u534e\u6613\u667a\u63a7\uff09\" srcset=\"https:\/\/www.dcl-controls.com\/content\/dam\/tech\/images\/dcl-4-20ma-cn.webp 1920w, https:\/\/www.dcl-controls.com\/content\/dam\/tech\/images\/dcl-4-20ma-cn-1536x821.webp 1536w, https:\/\/www.dcl-controls.com\/content\/dam\/tech\/images\/dcl-4-20ma-cn-18x10.webp 18w\" sizes=\"(max-width: 1920px) 100vw, 1920px\" \/>\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-ffdf34a elementor-widget elementor-widget-text-editor\" data-id=\"ffdf34a\" data-element_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>Em compara\u00e7\u00e3o com 2-10V, 4-20mA resolve dois fatal fraquezas do 2-10 V sinal. Como mostrado na imagem acima\uff1a<\/p><ol><li>Quando usamos 4-20mA, devido \u00e0 baixa resist\u00eancia de entrada do m\u00f3dulo (R=120 ohms), o sinal de entrada atual \u00e9 relativamente grande (4mA-20mA). Como resultado, o sinal-para-ru\u00eddo, este caminho \u00e9 muito alta, o que significa que a condu\u00e7\u00e3o e radia\u00e7\u00e3o anti-interfer\u00eancia, o desempenho \u00e9 melhor. Portanto, \u00e9 dif\u00edcil para um sinal de 4-20mA linha a ser perturbado em uma grande propor\u00e7\u00e3o.<\/li><li>\u00a0Em um caminho de sinal de 4-20mA, o dispositivo de sa\u00edda pode assegurar a exatid\u00e3o de toda a produ\u00e7\u00e3o corrente de loop, incluindo a corrente no lado da sa\u00edda e da corrente na entrada do atuador. Porque o feedback de amostragem de destino de sa\u00edda do circuito \u00e9 a corrente na sa\u00edda de 4-20mA ciclo, a corrente \u00e9 completamente equivalente em todo o loop de sinal. Portanto, a corrente amostrada no atuador do terminal deve ser a sa\u00edda de corrente no terminal de controle. Mesmo na presen\u00e7a de interfer\u00eancia e inconsistente do n\u00edvel do solo, 4-20 ma circuito de sa\u00edda pode ser ajustada pelo active feedback negativo para garantir a corre\u00e7\u00e3o do sinal de corrente.<\/li><li>O comprimento e a resist\u00eancia interna do sinal de 4-20mA cabo t\u00eam pouco efeito sobre o anti-interfer\u00eancia de desempenho de 4-20mA. Portanto, 4-20mA \u00e9 comumente usado para a comunica\u00e7\u00e3o de longa dist\u00e2ncia.<\/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-1cfccba elementor-widget elementor-widget-heading\" data-id=\"1cfccba\" data-element_type=\"widget\" id=\"conclusion\" 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-9e38325 elementor-widget elementor-widget-text-editor\" data-id=\"9e38325\" data-element_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>Em resumo, o anti-interfer\u00eancia de desempenho do sinal de 4-20mA no campo industrial \u00e9 significativamente melhor do que a de 2-10 V sinal. Isso tamb\u00e9m \u00e9 verdadeiro em cen\u00e1rios de aplica\u00e7\u00e3o de atuadores el\u00e9tricos.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-affdae5 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"affdae5\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-25 elementor-inner-column elementor-element elementor-element-2f8ba00\" data-id=\"2f8ba00\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3093316 elementor-align-left elementor-mobile-align-center elementor-widget elementor-widget-button\" data-id=\"3093316\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"\/pt_pt\/tech-enquiry\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Consulta t\u00e9cnica<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\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<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-25 elementor-inner-column elementor-element elementor-element-02c6b03\" data-id=\"02c6b03\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-e0a3c3a elementor-align-left elementor-mobile-align-center elementor-widget elementor-widget-button\" data-id=\"e0a3c3a\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"\/pt_pt\/where-to-buy\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Ordem do produto<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\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<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-25 elementor-inner-column elementor-element elementor-element-885dead\" data-id=\"885dead\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-25 elementor-inner-column elementor-element elementor-element-09dd98c\" data-id=\"09dd98c\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-2faeafb elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"2faeafb\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\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-192baa1 elementor-widget elementor-widget-text-editor\" data-id=\"192baa1\" data-element_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>Relacionados technical articles\uff1a<\/p><ul><li><a href=\"\/pt_pt\/tech\/why-voltage-signal-oscillate\/\">Por que a tens\u00e3o e o tipo de sinal de sa\u00edda oscilam em determinadas condi\u00e7\u00f5es de funcionamento?<\/a><\/li><\/ul><p>Relacionados normas t\u00e9cnicas<\/p><ul><li><a href=\"\/pt_pt\/tech\/gb-t-3369-1-2008-iec-60381-1-1982\/\">GB\/T 3369.1\u20142008\/IEC 60381-1:1982 sinais Anal\u00f3gicos para sistemas de controle de processo-Parte 1: sinais de corrente DC<\/a><\/li><li><a href=\"\/pt_pt\/tech\/gb-t-3369-2-2008-iec-60381-2-1978\/\">GB\/T 3369.2\u20142008\/IEC 60381-2:1978 sinais Anal\u00f3gicos para sistemas de controle de processo-Parte 2: sinais de tens\u00e3o DC<\/a><\/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-aea6233 elementor-widget elementor-widget-text-editor\" data-id=\"aea6233\" data-element_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=\"text-decoration: underline;\"><a href=\"#top\">Voltar para o topo<\/a><\/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<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Na aplica\u00e7\u00e3o de anti-interfer\u00eancia de atuadores el\u00e9tricos, o anti-interfer\u00eancia desempenho usando uma anal\u00f3gica de 4-20mA sinal \u00e9 muito melhor do que usando uma 2-10 V sinal anal\u00f3gico. Por qu\u00ea?<\/p>","protected":false},"author":1,"featured_media":6529,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"elementor_theme","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[334],"tags":[44,34,390,42,373,41],"class_list":["post-6528","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ta-actuator","tag-fast-move-actuator","tag-actuator","tag-tech-ref","tag-general-actuator","tag-very-small-actuator-tag","tag-explosion-proof-actuator"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.dcl-controls.com\/pt_pt\/wp-json\/wp\/v2\/posts\/6528","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.dcl-controls.com\/pt_pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.dcl-controls.com\/pt_pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.dcl-controls.com\/pt_pt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.dcl-controls.com\/pt_pt\/wp-json\/wp\/v2\/comments?post=6528"}],"version-history":[{"count":0,"href":"https:\/\/www.dcl-controls.com\/pt_pt\/wp-json\/wp\/v2\/posts\/6528\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.dcl-controls.com\/pt_pt\/wp-json\/wp\/v2\/media\/6529"}],"wp:attachment":[{"href":"https:\/\/www.dcl-controls.com\/pt_pt\/wp-json\/wp\/v2\/media?parent=6528"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.dcl-controls.com\/pt_pt\/wp-json\/wp\/v2\/categories?post=6528"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.dcl-controls.com\/pt_pt\/wp-json\/wp\/v2\/tags?post=6528"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}