{"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\/sv_se\/support\/ta-actuator\/actuator-immunity-4-20ma-vs-2-10v","title":{"rendered":"Stor konkurrens f\u00f6r anti-inblandning utf\u00f6randet av elektriska st\u00e4lldon (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>I till\u00e4mpningen av anti-inblandning av elektriska st\u00e4lldon, anti-inblandning prestanda med hj\u00e4lp av en 4-20mA analog signal \u00e4r mycket b\u00e4ttre \u00e4n med en 2-10V analog signal. Varf\u00f6r?<\/p><ul><li><a href=\"#2-10v\"><span style=\"text-decoration: underline;\">2-10V signal analys<\/span><\/a><\/li><li><a href=\"#ff\"><span style=\"text-decoration: underline;\">4-20mA signal analys<\/span><\/a><\/li><li><span style=\"text-decoration: underline;\">slutsats<\/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 signal analys<\/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>Som visas i bilden ovan\uff1a<\/p><ol><li>\u5f53\u6211\u4eec\u4f7f\u75282-10V\u65f6\uff0c\u7531\u4e8e\u6a21\u5757\u4e0a\u7684\u8f93\u5165\u7535\u963b\u8f83\u9ad8\uff08R=34K\uff09\uff0c\u8f93\u5165\u4fe1\u53f7\u7535\u6d41\u975e\u5e38\u4f4e\uff080.059mA-0.29mA\uff09\u3002\u5176\u7ed3\u679c\u662f\u8be5\u8def\u5f84\u4e0a\u7684\u4fe1\u566a\u6bd4\u975e\u5e38\u4f4e\uff0c\u8fd9\u610f\u5473\u7740\u4f20\u5bfc\u548c\u8f90\u5c04\u6297\u5e72\u6270\u6027\u80fd\u8f83\u5dee\u3002\u6362\u53e5\u8bdd\u8bf4\uff0c\u5728\u7535\u5b50\u8bbe\u8ba1\u7684\u89d2\u5ea6\u6765\u770b\uff0c\u8fd9\u662f\u6700\u8106\u5f31\u7684\u90e8\u5206\u3002<\/li><li>\u57282-10V\u4fe1\u53f7\u8def\u5f84\u4e0a\uff0c\u8f93\u51fa\u8bbe\u5907\u53ea\u80fd\u786e\u4fdd\u63a7\u5236\u5668\u4fa7\u7684\u8f93\u51fa\u7535\u538b\uff08Vo\uff09\u6b63\u786e\u6027\uff08\u56e0\u4e3a\u7535\u538b\u53cd\u9988\u70b9\u9760\u8fd1\u8f93\u51fa\u5f15\u811a\uff09\u3002\u76f8\u53cd\uff0c\u6267\u884c\u5668\u4fa7\u7684\u8f93\u5165\u7535\u538b\uff08Vi\uff09\u4e0d\u80fd\u88ab\u786e\u4fdd\u4e3a\u6b63\u786e\u7684\uff0c\u56e0\u4e3aVi=Vo+Vnoise+Vground-diff\uff0cVnoise\u548cVground-diff\u662f\u975e\u5e38\u5bb9\u6613\u53d7\u5230\u5e72\u6270\u800c\u4ea7\u751f\u77ac\u6001\u53d8\u5316\u7684\uff0c\u8fd9\u4e00\u70b9\u65e0\u6cd5\u907f\u514d\u3002<\/li><li>2-10V\u4fe1\u53f7\u7ebf\u7f06\u7684\u957f\u5ea6\u3001\u5185\u963b\u548c\u5c4f\u853d\u63aa\u65bd\u4f1a\u663e\u8457\u5f71\u54cd2-10V\u7684\u6297\u5e72\u6270\u6027\u80fd\uff0c\u7ebf\u7f06\u8d8a\u957f\u3001\u7ebf\u7f06\u5185\u963b\u8d8a\u5927\u3001\u5c4f\u853d\u63aa\u65bd\u8d8a\u5dee\uff0c2-10V\u4fe1\u53f7\u7684\u6297\u5e72\u6270\u6027\u80fd\u8d8a\u5dee\u3002\u6240\u4ee5\uff0c2-10V\u5e38\u7528\u4e8e\u6781\u77ed\u8ddd\u79bb\u7684\u901a\u8baf\u3002<\/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\">4-20mA signal analys<\/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>J\u00e4mf\u00f6rt med 2-10V, 4-20mA l\u00f6ser tv\u00e5 d\u00f6dliga brister i 2-10V signal. Som visas i bilden ovan\uff1a<\/p><ol><li>N\u00e4r vi anv\u00e4nder 4-20mA, p\u00e5 grund av den l\u00e5ga ing\u00e5ngen motst\u00e5nd p\u00e5 modulen (R=120 \u03c9) insignalens nuvarande \u00e4r relativt stor (4mA-20mA). Som ett resultat, signal-till-brus-f\u00f6rh\u00e5llande p\u00e5 denna v\u00e4g \u00e4r mycket h\u00f6g, vilket inneb\u00e4r att ledning och str\u00e5lning, anti-inblandning resultatet \u00e4r b\u00e4ttre. D\u00e4rf\u00f6r \u00e4r det sv\u00e5rt f\u00f6r en 4-20mA signal linje f\u00f6r att bli st\u00f6rd i ett stort tal.<\/li><li>\u00a0P\u00e5 en signal v\u00e4g 4-20mA, enhet kan s\u00e4kerst\u00e4lla riktigheten av hela produktionen str\u00f6mslinga, inklusive den nuvarande utmatning och den aktuella vid ing\u00e5ngen av st\u00e4lldonet. Eftersom feedback provtagning m\u00e5l av produktionen krets som \u00e4r aktuella vid utg\u00e5ng 4-20 ma loop, den nuvarande \u00e4r helt likv\u00e4rdiga i hela signalen loop. D\u00e4rf\u00f6r \u00e4r den nuvarande prov p\u00e5 st\u00e4lldonet terminalen m\u00e5ste vara den nuvarande produktionen vid kontroll terminal. \u00c4ven i n\u00e4rvaro av st\u00f6rningar och inkonsekvent markniv\u00e5, 4-20mA utg\u00e5ng krets kan justeras genom att aktivt negativ feedback f\u00f6r att s\u00e4kerst\u00e4lla riktigheten i den aktuella signalen.<\/li><li>L\u00e4ngd och inre motst\u00e5nd 4-20mA signal kabel har liten effekt p\u00e5 den anti-inblandning prestanda f\u00f6r 4-20mA. D\u00e4rf\u00f6r, 4-20 ma \u00e4r vanligen anv\u00e4nds f\u00f6r kommunikation \u00f6ver l\u00e5nga avst\u00e5nd.<\/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\">slutsats<\/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>I sammanfattning, anti-inblandning prestanda av 4-20mA signal i det industriella omr\u00e5det \u00e4r betydligt b\u00e4ttre \u00e4n 2-10V signal. Detta \u00e4r ocks\u00e5 sant i till\u00e4mpningarna av elektriska st\u00e4lldon.<\/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=\"\/sv_se\/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\">Tekniskt samr\u00e5d<\/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=\"\/sv_se\/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\">Produkten best\u00e4llning<\/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>Tekniska artiklar\uff1a<\/p><ul><li><a href=\"\/sv_se\/tech\/why-voltage-signal-oscillate\/\">Varf\u00f6r sp\u00e4nning-typ utsignal sv\u00e4nga under vissa driftf\u00f6rh\u00e5llanden?<\/a><\/li><\/ul><p>Tekniska standarder<\/p><ul><li><a href=\"\/sv_se\/tech\/gb-t-3369-1-2008-iec-60381-1-1982\/\">GB\/T 3369.1\u20142008\/IEC 60381-1:1982 Analoga signaler f\u00f6r process-styrsystem-Del 1: LIKSTR\u00d6M signaler<\/a><\/li><li><a href=\"\/sv_se\/tech\/gb-t-3369-2-2008-iec-60381-2-1978\/\">GB\/T 3369.2\u20142008\/IEC 60381-2:1978 Analoga signaler f\u00f6r process control systems-Del 2: DC-sp\u00e4nning signaler<\/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\">Tillbaka till toppen<\/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>\u5728\u7535\u52a8\u6267\u884c\u5668\u6297\u5e72\u6270\u7684\u5e94\u7528\u4e2d\uff0c\u4f7f\u75284-20mA\u6a21\u62df\u4fe1\u53f7\u6bd4\u4f7f\u75282-10V\u6a21\u62df\u4fe1\u53f7\u7684\u6297\u5e72\u6270\u6027\u80fd\u597d\u975e\u5e38\u591a\uff0c\u4e3a\u4ec0\u4e48\uff1f 2 [&hellip;]<\/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\/sv_se\/wp-json\/wp\/v2\/posts\/6528","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.dcl-controls.com\/sv_se\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.dcl-controls.com\/sv_se\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.dcl-controls.com\/sv_se\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.dcl-controls.com\/sv_se\/wp-json\/wp\/v2\/comments?post=6528"}],"version-history":[{"count":0,"href":"https:\/\/www.dcl-controls.com\/sv_se\/wp-json\/wp\/v2\/posts\/6528\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.dcl-controls.com\/sv_se\/wp-json\/wp\/v2\/media\/6529"}],"wp:attachment":[{"href":"https:\/\/www.dcl-controls.com\/sv_se\/wp-json\/wp\/v2\/media?parent=6528"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.dcl-controls.com\/sv_se\/wp-json\/wp\/v2\/categories?post=6528"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.dcl-controls.com\/sv_se\/wp-json\/wp\/v2\/tags?post=6528"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}