{"id":10893,"date":"2024-12-02T13:29:04","date_gmt":"2024-12-02T05:29:04","guid":{"rendered":"https:\/\/viox.com\/?p=10893"},"modified":"2024-12-02T13:33:49","modified_gmt":"2024-12-02T05:33:49","slug":"what-do-nc-and-no-mean","status":"publish","type":"post","link":"https:\/\/test.viox.com\/vi\/what-do-nc-and-no-mean\/","title":{"rendered":"&#039;NC&#039; v\u00e0 &#039;NO&#039; c\u00f3 ngh\u0129a l\u00e0 g\u00ec?"},"content":{"rendered":"<div class=\"product-intro\">\n<h2>\u0110\u1ecbnh ngh\u0129a NC v\u00e0 NO<\/h2>\n<p>C\u00f4ng t\u1eafc n\u00fat nh\u1ea5n c\u00f3 hai c\u1ea5u h\u00ecnh ch\u00ednh: Th\u01b0\u1eddng \u0111\u00f3ng (NC) v\u00e0 Th\u01b0\u1eddng m\u1edf (NO), x\u00e1c \u0111\u1ecbnh tr\u1ea1ng th\u00e1i \u0111i\u1ec7n m\u1eb7c \u0111\u1ecbnh c\u1ee7a c\u00f4ng t\u1eafc v\u00e0 c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u00f4ng t\u1eafc trong c\u00e1c \u1ee9ng d\u1ee5ng kh\u00e1c nhau.<\/p>\n<p><strong>Th\u01b0\u1eddng \u0111\u00f3ng (NC)<\/strong> c\u00f4ng t\u1eafc duy tr\u00ec m\u1ea1ch ho\u00e0n ch\u1ec9nh \u1edf tr\u1ea1ng th\u00e1i m\u1eb7c \u0111\u1ecbnh, cho ph\u00e9p d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua khi kh\u00f4ng b\u1ecb t\u00e1c \u0111\u1ed9ng. Khi \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t, c\u00f4ng t\u1eafc NC ng\u1eaft d\u00f2ng \u0111i\u1ec7n b\u1eb1ng c\u00e1ch m\u1edf m\u1ea1ch.<\/p>\n<p><strong>Th\u01b0\u1eddng m\u1edf (NO)<\/strong> c\u00f4ng t\u1eafc c\u00f3 m\u1ea1ch h\u1edf \u1edf v\u1ecb tr\u00ed m\u1eb7c \u0111\u1ecbnh, ng\u0103n d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua. Khi k\u00edch ho\u1ea1t, c\u00f4ng t\u1eafc NO s\u1ebd \u0111\u00f3ng m\u1ea1ch, cho ph\u00e9p d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua.<\/p>\n<p>C\u00e1c c\u1ea5u h\u00ecnh c\u01a1 b\u1ea3n n\u00e0y quy\u1ebft \u0111\u1ecbnh h\u00e0nh vi v\u00e0 t\u00ednh ph\u00f9 h\u1ee3p c\u1ee7a c\u00f4ng t\u1eafc \u0111\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3:<\/p>\n<ul>\n<li>C\u00f4ng t\u1eafc NC l\u00fd t\u01b0\u1edfng cho c\u00e1c h\u1ec7 th\u1ed1ng y\u00eau c\u1ea7u ng\u1eaft ngu\u1ed3n ngay l\u1eadp t\u1ee9c khi k\u00edch ho\u1ea1t.<\/li>\n<li>C\u00f4ng t\u1eafc NO th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c thi\u1ebft b\u1ecb c\u1ea7n k\u00edch ho\u1ea1t t\u1ea1m th\u1eddi, ch\u1eb3ng h\u1ea1n nh\u01b0 chu\u00f4ng c\u1eeda ho\u1eb7c n\u00fat b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n.<\/li>\n<li>\u0110\u1ea7u cu\u1ed1i ph\u00eda tr\u00ean c\u1ee7a c\u00f4ng t\u1eafc n\u00fat nh\u1ea5n th\u01b0\u1eddng t\u01b0\u01a1ng \u1ee9ng v\u1edbi ti\u1ebfp \u0111i\u1ec3m NC, trong khi \u0111\u1ea7u cu\u1ed1i ph\u00eda d\u01b0\u1edbi \u0111\u1ea1i di\u1ec7n cho ti\u1ebfp \u0111i\u1ec3m NO.<\/li>\n<\/ul>\n<h2>\u1ee8ng d\u1ee5ng trong H\u1ec7 th\u1ed1ng an to\u00e0n<\/h2>\n<p>H\u1ec7 th\u1ed1ng an to\u00e0n ph\u1ee5 thu\u1ed9c nhi\u1ec1u v\u00e0o c\u00f4ng t\u1eafc NC (th\u01b0\u1eddng \u0111\u00f3ng) do \u0111\u1eb7c t\u00ednh an to\u00e0n khi h\u1ecfng h\u00f3c c\u1ee7a ch\u00fang. Trong c\u00e1c n\u00fat d\u1eebng kh\u1ea9n c\u1ea5p, c\u00f4ng t\u1eafc NC \u0111\u1ea3m b\u1ea3o ng\u1eaft ngu\u1ed3n ngay l\u1eadp t\u1ee9c khi \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t, t\u0103ng c\u01b0\u1eddng an to\u00e0n t\u1ea1i n\u01a1i l\u00e0m vi\u1ec7c. C\u1ea5u h\u00ecnh n\u00e0y r\u1ea5t quan tr\u1ecdng trong m\u00e1y m\u00f3c, n\u01a1i kh\u1ea3 n\u0103ng t\u1eaft m\u00e1y t\u1ee9c th\u1eddi c\u00f3 th\u1ec3 ng\u0103n ng\u1eeba tai n\u1ea1n v\u00e0 b\u1ea3o v\u1ec7 ng\u01b0\u1eddi lao \u0111\u1ed9ng.<\/p>\n<p>Ng\u01b0\u1ee3c l\u1ea1i, c\u00f4ng t\u1eafc NO (th\u01b0\u1eddng m\u1edf) \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng trong c\u00e1c c\u01a1 ch\u1ebf \u0111i\u1ec1u khi\u1ec3n khi c\u1ea7n k\u00edch ho\u1ea1t t\u1ea1m th\u1eddi, ch\u1eb3ng h\u1ea1n nh\u01b0 chu\u00f4ng c\u1eeda ho\u1eb7c c\u00f4ng t\u1eafc t\u1ea1m th\u1eddi trong b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n. Vi\u1ec7c l\u1ef1a ch\u1ecdn gi\u1eefa c\u1ea5u h\u00ecnh NC v\u00e0 NO r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 thi\u1ebft k\u1ebf c\u00e1c giao th\u1ee9c an to\u00e0n hi\u1ec7u qu\u1ea3 v\u00e0 c\u00e1c bi\u1ec7n ph\u00e1p ki\u1ec3m so\u00e1t ho\u1ea1t \u0111\u1ed9ng trong nhi\u1ec1u b\u1ed1i c\u1ea3nh c\u00f4ng nghi\u1ec7p v\u00e0 th\u01b0\u01a1ng m\u1ea1i kh\u00e1c nhau.<\/p>\n<h2>K\u00fd hi\u1ec7u v\u00e0 d\u1ea5u hi\u1ec7u m\u1ea1ch \u0111i\u1ec7n<\/h2>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"size-full wp-image-10896 aligncenter\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2024\/12\/NC-and-NO-Circuit-Symbols.webp\" alt=\"NC and NO Circuit Symbols\" width=\"422\" height=\"316\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2024\/12\/NC-and-NO-Circuit-Symbols.webp 422w, https:\/\/test.viox.com\/wp-content\/uploads\/2024\/12\/NC-and-NO-Circuit-Symbols-300x225.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2024\/12\/NC-and-NO-Circuit-Symbols-16x12.webp 16w\" sizes=\"(max-width: 422px) 100vw, 422px\" \/><\/p>\n<p>S\u01a1 \u0111\u1ed3 m\u1ea1ch s\u1eed d\u1ee5ng c\u00e1c k\u00fd hi\u1ec7u ri\u00eang bi\u1ec7t \u0111\u1ec3 bi\u1ec3u di\u1ec5n c\u00e1c c\u00f4ng t\u1eafc NO v\u00e0 NC, h\u1ed7 tr\u1ee3 vi\u1ec7c nh\u1eadn d\u1ea1ng v\u00e0 tri\u1ec3n khai \u0111\u00fang c\u00e1ch. C\u00e1c c\u00f4ng t\u1eafc NO th\u01b0\u1eddng \u0111\u01b0\u1ee3c m\u00f4 t\u1ea3 b\u1eb1ng c\u00e1c ti\u1ebfp \u0111i\u1ec3m ng\u1eaft k\u1ebft n\u1ed1i \u0111\u00f3ng l\u1ea1i khi \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t, trong khi c\u00e1c c\u00f4ng t\u1eafc NC hi\u1ec3n th\u1ecb c\u00e1c ti\u1ebfp \u0111i\u1ec3m \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i m\u1edf ra khi \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t.<\/p>\n<p>C\u00e1c c\u00f4ng t\u1eafc v\u1eadt l\u00fd th\u01b0\u1eddng c\u00f3 c\u00e1c \u0111\u1ea7u cu\u1ed1i ho\u1eb7c k\u00fd hi\u1ec7u \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a m\u00e0u, v\u1edbi m\u00e0u \u0111\u1ecf th\u01b0\u1eddng bi\u1ec3u th\u1ecb NC v\u00e0 m\u00e0u xanh l\u00e1 c\u00e2y bi\u1ec3u th\u1ecb NO. C\u00e1c t\u00edn hi\u1ec7u tr\u1ef1c quan n\u00e0y gi\u00fap c\u00e1c k\u1ef9 s\u01b0 v\u00e0 k\u1ef9 thu\u1eadt vi\u00ean ph\u00e2n bi\u1ec7t nhanh ch\u00f3ng gi\u1eefa c\u00e1c lo\u1ea1i c\u00f4ng t\u1eafc, \u0111\u1ea3m b\u1ea3o l\u1eafp \u0111\u1eb7t v\u00e0 ch\u1ee9c n\u0103ng ch\u00ednh x\u00e1c trong c\u00e1c h\u1ec7 th\u1ed1ng \u0111i\u1ec7n t\u1eed kh\u00e1c nhau.<\/p>\n<h2>\u00dd ngh\u0129a trong \u0110i\u1ec7n t\u1eed<\/h2>\n<p>Hi\u1ec3u \u0111\u01b0\u1ee3c s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa c\u1ea5u h\u00ecnh NC v\u00e0 NO l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi thi\u1ebft k\u1ebf \u0111i\u1ec7n t\u1eed v\u00e0 x\u1eed l\u00fd s\u1ef1 c\u1ed1. C\u00e1c lo\u1ea1i c\u00f4ng t\u1eafc n\u00e0y \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong nhi\u1ec1u \u1ee9ng d\u1ee5ng kh\u00e1c nhau, t\u1eeb c\u00e1c thi\u1ebft b\u1ecb gia d\u1ee5ng \u0111\u01a1n gi\u1ea3n \u0111\u1ebfn m\u00e1y m\u00f3c c\u00f4ng nghi\u1ec7p ph\u1ee9c t\u1ea1p.<\/p>\n<p>Vi\u1ec7c l\u1ef1a ch\u1ecdn gi\u1eefa c\u00f4ng t\u1eafc NC v\u00e0 NO c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u00e1ng k\u1ec3 \u0111\u1ebfn \u0111\u1ed9 tin c\u1eady c\u1ee7a h\u1ec7 th\u1ed1ng, hi\u1ec7u qu\u1ea3 n\u0103ng l\u01b0\u1ee3ng v\u00e0 ch\u1ee9c n\u0103ng t\u1ed5ng th\u1ec3. V\u00ed d\u1ee5:<\/p>\n<ul>\n<li>C\u00f4ng t\u1eafc NC th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng trong c\u00e1c h\u1ec7 th\u1ed1ng quan tr\u1ecdng v\u1ec1 an to\u00e0n do t\u00ednh ch\u1ea5t an to\u00e0n khi h\u1ecfng h\u00f3c c\u1ee7a ch\u00fang.<\/li>\n<li>C\u00f4ng t\u1eafc NO th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c \u1ee9ng d\u1ee5ng y\u00eau c\u1ea7u k\u00edch ho\u1ea1t t\u1ee9c th\u1eddi.<\/li>\n<\/ul>\n<h2>Kh\u00e1m ph\u00e1 th\u00eam<\/h2>\n<div class=\"ast-oembed-container\" style=\"height: 100%;\"><iframe title=\"NO vs NC | 5 \u0110i\u1ec3m TH\u1ef0C T\u1ebe v\u00e0 QUAN TR\u1eccNG V\u1ec1 Ti\u1ebfp \u0110i\u1ec3m Th\u01b0\u1eddng \u0110\u00f3ng v\u00e0 Th\u01b0\u1eddng M\u1edf\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/txUbijasCZU?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>NC vs NO Definitions Push button switches come in two main configurations: Normally Closed (NC) and Normally Open (NO), which define their default electrical states and determine how they function in various applications. Normally Closed (NC) switches maintain a complete circuit in their default state, allowing current to flow when untouched. When activated, NC switches [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":10898,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"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":"","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":[1],"tags":[],"class_list":["post-10893","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/posts\/10893","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/comments?post=10893"}],"version-history":[{"count":0,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/posts\/10893\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/media\/10898"}],"wp:attachment":[{"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/media?parent=10893"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/categories?post=10893"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/tags?post=10893"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}