{"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":"2025-03-31T07:10:42","modified_gmt":"2025-03-31T07:10:42","slug":"actuator-immunity-4-20ma-vs-2-10v","status":"publish","type":"post","link":"https:\/\/dclactuator.com\/hu_hu\/tamogatas\/ta-akutator\/aktuator-immunitasa-4-20ma-vs-2-10v","title":{"rendered":"Az interferencia-ellen\u00e1ll\u00e1s teljes\u00edtm\u00e9ny\u00e9nek \u00f6sszehasonl\u00edt\u00e1sa: 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-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"c4425ee\" data-element_type=\"section\" data-e-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\" data-e-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-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>Az elektromos aktu\u00e1torok interferencia-ellen\u00e1ll\u00e1s\u00e1nak alkalmaz\u00e1sakor a 4-20 mA-es anal\u00f3g jel jelent\u0151sen fel\u00fclm\u00falja a 2-10 V-os anal\u00f3g jelet. Mi\u00e9rt van ez \u00edgy?<\/p><h2>2-10V jelelemz\u00e9s<\/h2><p><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone size-medium\" src=\"\/wp-content\/uploads\/2023\/09\/dcl-2-10v-cn.webp\" width=\"1920\" height=\"1027\" \/><\/p><p><strong>Interferencia-diagram 2-10 V-os jelhez (DCL Huayi intelligens vez\u00e9rl\u00e9s)<\/strong><\/p><p>Amint a fenti \u00e1br\u00e1n l\u00e1that\u00f3:<\/p><p>2-10V haszn\u00e1lata eset\u00e9n a modul nagyobb bemeneti ellen\u00e1ll\u00e1sa (R=34K) miatt a bemeneti jel\u00e1ram nagyon alacsony (0,059mA \u2013 0,29mA). Ennek eredm\u00e9nyek\u00e9nt a jel-zaj viszony ezen az \u00fatvonalon nagyon alacsony, ami azt jelenti, hogy a vezet\u0151k\u00e9pes \u00e9s sug\u00e1rz\u00e1si interferencia-ellen\u00e1ll\u00e1s gyenge. M\u00e1s sz\u00f3val, az elektronikai tervez\u00e9s szempontj\u00e1b\u00f3l ez a legsebezhet\u0151bb r\u00e9sz.<\/p><p>A 2-10V-os jel\u00fatvonalon a kimeneti eszk\u00f6z csak a vez\u00e9rl\u0151oldalon tudja biztos\u00edtani a kimeneti fesz\u00fclts\u00e9g (Vo) helyess\u00e9g\u00e9t (mivel a fesz\u00fclts\u00e9g-visszacsatol\u00e1si pont k\u00f6zel van a kimeneti l\u00e1bhoz). M\u00e1sr\u00e9szt a beavatkoz\u00f3oldalon a bemeneti fesz\u00fclts\u00e9g (Vi) helyess\u00e9ge nem garant\u00e1lhat\u00f3, mert <span class=\"katex\">Vi=Vo+Vzaj+Vf\u00f6ld\u2212k\u00fcl\u00f6nbs\u00e9gVi = Vo + V_{zaj} + V_{f\u00f6ld-k\u00fcl\u00f6nbs\u00e9g}<\/span>, ahol <span class=\"katex\">VzajV_{zaj}<\/span> \u00e9s <span class=\"katex\">Vtalaj-k\u00fcl\u00f6nbs\u00e9gV_{talaj-k\u00fcl\u00f6nbs\u00e9g}<\/span> rendk\u00edv\u00fcl \u00e9rz\u00e9kenyek az interferenci\u00e1ra, ami elker\u00fclhetetlen \u00e1tmeneti v\u00e1ltoz\u00e1sokat okozhat.<\/p><p>A 2-10V-os jelk\u00e1bel hossza, bels\u0151 ellen\u00e1ll\u00e1sa \u00e9s \u00e1rny\u00e9kol\u00e1si int\u00e9zked\u00e9sei jelent\u0151sen befoly\u00e1solj\u00e1k a 2-10V-os jel interferenciav\u00e9delmi teljes\u00edtm\u00e9ny\u00e9t. Min\u00e9l hosszabb a k\u00e1bel, ann\u00e1l nagyobb a bels\u0151 ellen\u00e1ll\u00e1s, \u00e9s min\u00e9l rosszabb az \u00e1rny\u00e9kol\u00e1s, ann\u00e1l rosszabb a 2-10V-os jel interferenci\u00e1val szembeni ellen\u00e1ll\u00e1sa. Ez\u00e9rt a 2-10V-ot \u00e1ltal\u00e1ban nagyon r\u00f6vid t\u00e1vols\u00e1g\u00fa kommunik\u00e1ci\u00f3hoz haszn\u00e1lj\u00e1k.<\/p><h2>4-20mA jel elemz\u00e9s<\/h2><p><img decoding=\"async\" class=\"alignnone size-medium\" src=\"\/wp-content\/uploads\/2023\/09\/dcl-4-20ma-cn.webp\" width=\"1920\" height=\"1026\" \/><\/p><p><strong>Interferencia-diagram 4-20 mA-es jelhez (DCL Huayi intelligens vez\u00e9rl\u00e9s)<\/strong><\/p><p>A 2-10V-hoz k\u00e9pest a 4-20mA a 2-10V-os jel k\u00e9t kritikus gyenges\u00e9g\u00e9t kezeli. Amint a fenti \u00e1bra mutatja:<\/p><p>4-20 mA haszn\u00e1lata eset\u00e9n a modul alacsonyabb bemeneti ellen\u00e1ll\u00e1sa (R=120 ohm) miatt a bemeneti jel\u00e1ram viszonylag magas (4 mA \u2013 20 mA). Ez magasabb jel-zaj ar\u00e1nyt eredm\u00e9nyez ezen az \u00fatvonalon, ami azt jelenti, hogy a vezet\u0151k\u00e9pes \u00e9s sug\u00e1rz\u00e1si interferencia-sz\u0171r\u00e9s jobb. Ennek eredm\u00e9nyek\u00e9nt a 4-20 mA-es jel sokkal nehezebben zavarhat\u00f3.<\/p><p>A 4-20 mA-es jel\u00fatvonalon a kimeneti eszk\u00f6z biztos\u00edtani tudja a teljes kimeneti hurok\u00e1ram helyess\u00e9g\u00e9t, bele\u00e9rtve mind a kimeneti oldalon l\u00e9v\u0151 \u00e1ramot, mind a beavatkoz\u00f3 bemenet\u00e9n l\u00e9v\u0151 \u00e1ramot. Ez az\u00e9rt van, mert a kimeneti \u00e1ramk\u00f6r visszacsatol\u00e1sos mintav\u00e9telez\u00e9si c\u00e9lja a 4-20 mA-es hurok kimeneti v\u00e9g\u00e9n l\u00e9v\u0151 \u00e1ram, \u00e9s az \u00e1ram a teljes jelhurokban egyenl\u0151. Ez\u00e9rt a beavatkoz\u00f3 v\u00e9g\u00e9n mintav\u00e9telezett \u00e1ramnak meg kell egyeznie a vez\u00e9rl\u0151 kimeneti \u00e1ram\u00e1val. Interferencia \u00e9s f\u00f6ldel\u00e9si potenci\u00e1l inkonzisztenci\u00e1i eset\u00e9n is a 4-20 mA-es kimeneti \u00e1ramk\u00f6r akt\u00edv negat\u00edv visszacsatol\u00e1sos be\u00e1ll\u00edt\u00e1ssal biztos\u00edtja a jel\u00e1ram helyess\u00e9g\u00e9t.<\/p><p>A 4-20 mA-es jelk\u00e1bel hossza \u00e9s bels\u0151 ellen\u00e1ll\u00e1sa csek\u00e9ly hat\u00e1ssal van a 4-20 mA-es jel interferenciav\u00e9delmi teljes\u00edtm\u00e9ny\u00e9re. Ez\u00e9rt a 4-20 mA-t \u00e1ltal\u00e1ban nagy t\u00e1vols\u00e1g\u00fa kommunik\u00e1ci\u00f3hoz haszn\u00e1lj\u00e1k.<\/p><h2>K\u00f6vetkeztet\u00e9s<\/h2><p>\u00d6sszefoglalva, a 4-20 mA-es jel ipari k\u00f6rnyezetben l\u00e9nyegesen jobb interferencia-ellen\u00e1ll\u00e1ssal rendelkezik, mint a 2-10 V-os jel. Ez az elektromos aktu\u00e1torokat tartalmaz\u00f3 alkalmaz\u00e1sokra is igaz.<\/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>Az elektromos aktu\u00e1torok interferencia-ellen\u00e1ll\u00e1si teljes\u00edtm\u00e9ny\u00e9nek alkalmaz\u00e1sakor a 4-20 mA-es anal\u00f3g jel jelent\u0151sen fel\u00fclm\u00falja a 2-10 V-os anal\u00f3g jelet. Mi\u00e9rt van ez \u00edgy? 2-10 V-os jel elemz\u00e9se Interferencia-ellen\u00e1ll\u00e1si diagram 2-10 V-os jelhez (DCL Huayi intelligens vez\u00e9rl\u00e9s) Amint a fenti \u00e1bra mutatja: 2-10 V haszn\u00e1lata eset\u00e9n a modul nagyobb bemeneti ellen\u00e1ll\u00e1sa (R=34K) miatt a [\u2026]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"elementor_theme","format":"standard","meta":{"_acf_changed":true,"footnotes":""},"categories":[8],"tags":[49],"class_list":["post-6528","post","type-post","status-publish","format-standard","hentry","category-ta-acutator","tag-input-signal"],"acf":[],"_links":{"self":[{"href":"https:\/\/dclactuator.com\/hu_hu\/wp-json\/wp\/v2\/posts\/6528","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dclactuator.com\/hu_hu\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dclactuator.com\/hu_hu\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dclactuator.com\/hu_hu\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dclactuator.com\/hu_hu\/wp-json\/wp\/v2\/comments?post=6528"}],"version-history":[{"count":0,"href":"https:\/\/dclactuator.com\/hu_hu\/wp-json\/wp\/v2\/posts\/6528\/revisions"}],"wp:attachment":[{"href":"https:\/\/dclactuator.com\/hu_hu\/wp-json\/wp\/v2\/media?parent=6528"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dclactuator.com\/hu_hu\/wp-json\/wp\/v2\/categories?post=6528"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dclactuator.com\/hu_hu\/wp-json\/wp\/v2\/tags?post=6528"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}