{"id":11266,"date":"2024-12-12T23:07:18","date_gmt":"2024-12-12T15:07:18","guid":{"rendered":"https:\/\/viox.com\/?p=11266"},"modified":"2024-12-12T23:23:14","modified_gmt":"2024-12-12T15:23:14","slug":"is-emergency-stop-button-normally-open-or-closed","status":"publish","type":"post","link":"https:\/\/test.viox.com\/vi\/is-emergency-stop-button-normally-open-or-closed\/","title":{"rendered":"N\u00fat d\u1eebng kh\u1ea9n c\u1ea5p th\u01b0\u1eddng m\u1edf hay \u0111\u00f3ng?"},"content":{"rendered":"
\n

N\u00fat d\u1eebng kh\u1ea9n c\u1ea5p, th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p v\u00e0 an to\u00e0n, th\u01b0\u1eddng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf v\u1edbi c\u00e1c ti\u1ebfp \u0111i\u1ec3m th\u01b0\u1eddng \u0111\u00f3ng (NC). C\u1ea5u h\u00ecnh n\u00e0y \u0111\u1ea3m b\u1ea3o c\u01a1 ch\u1ebf an to\u00e0n, cho ph\u00e9p ng\u1eaft ngu\u1ed3n \u0111i\u1ec7n ngay l\u1eadp t\u1ee9c cho m\u00e1y m\u00f3c khi \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t, do \u0111\u00f3 t\u0103ng c\u01b0\u1eddng t\u00ednh an to\u00e0n v\u00e0 \u0111\u1ed9 tin c\u1eady khi v\u1eadn h\u00e0nh.<\/p>\n

So s\u00e1nh gi\u1eefa ti\u1ebfp \u0111i\u1ec3m NO v\u00e0 ti\u1ebfp \u0111i\u1ec3m NC<\/h2>\n\n\n\n\n\n\n\n\n\n
<\/th>\nKH\u00d4NG Li\u00ean h\u1ec7<\/th>\nLi\u00ean h\u1ec7 NC<\/th>\n<\/tr>\n<\/thead>\n
Bi\u1ec3u t\u01b0\u1ee3ng \u0111i\u1ec7n<\/td>\n\"NO<\/td>\n\"NC<\/td>\n<\/tr>\n
T\u1ed5ng quan v\u1ec1 C\u1ea5u tr\u00fac C\u00f4ng t\u1eafc (Tr\u1ea1ng th\u00e1i Tr\u01b0\u1edbc khi Ho\u1ea1t \u0111\u1ed9ng)<\/td>\n\"Switch<\/td>\n\"Switch<\/td>\n<\/tr>\n
Gi\u1ea3i th\u00edch<\/td>\n\n
    \n
  • Tr\u01b0\u1edbc khi v\u1eadn h\u00e0nh: kh\u00f4ng c\u00f3 d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua.<\/li>\n
  • Sau khi ho\u1ea1t \u0111\u1ed9ng: d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua.<\/li>\n<\/ul>\n<\/td>\n
\n
    \n
  • Tr\u01b0\u1edbc khi v\u1eadn h\u00e0nh: d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua.<\/li>\n
  • Sau khi ho\u1ea1t \u0111\u1ed9ng: d\u00f2ng \u0111i\u1ec7n kh\u00f4ng ch\u1ea1y qua.<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n
S\u1eed d\u1ee5ng nh\u01b0 m\u1ed9t m\u1ea1ch d\u1eebng kh\u1ea9n c\u1ea5p<\/td>\nKh\u00f4ng c\u00f3<\/td>\nYes<\/td>\n<\/tr>\n
H\u00e0nh vi khi x\u1ea3y ra s\u1ef1 ng\u1eaft m\u1ea1ch ho\u1eb7c l\u1ed7i d\u1eabn truy\u1ec1n<\/td>\nD\u00f2ng \u0111i\u1ec7n kh\u00f4ng ch\u1ea1y qua trong qu\u00e1 tr\u00ecnh ho\u1ea1t \u0111\u1ed9ng.
\n->N\u1ebfu s\u1eed d\u1ee5ng nh\u01b0 m\u1ed9t m\u1ea1ch d\u1eebng kh\u1ea9n c\u1ea5p, m\u00e1y kh\u00f4ng d\u1eebng khi nh\u1ea5n n\u00fat. (H\u1ecfng h\u00f3c nguy hi\u1ec3m cho m\u00e1y)<\/td>\n		D\u00f2ng \u0111i\u1ec7n kh\u00f4ng ch\u1ea1y qua ngay c\u1ea3 khi n\u00fat \u0111\u01b0\u1ee3c \u0111\u1eb7t l\u1ea1i.
\n->Kh\u00f4ng th\u1ec3 nh\u1eadn d\u1ea1ng n\u00fat reset do c\u1ea5u tr\u00fac m\u1ea1ch n\u00ean m\u00e1y kh\u00f4ng th\u1ec3 v\u1eadn h\u00e0nh \u0111\u01b0\u1ee3c. (M\u00e1y h\u1ecfng an to\u00e0n)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

C\u1ea5u h\u00ecnh n\u00fat d\u1eebng kh\u1ea9n c\u1ea5p<\/h2>\n

C\u00e1c n\u00fat d\u1eebng kh\u1ea9n c\u1ea5p th\u01b0\u1eddng s\u1eed d\u1ee5ng c\u00e1c ti\u1ebfp \u0111i\u1ec3m th\u01b0\u1eddng \u0111\u00f3ng (NC) trong thi\u1ebft k\u1ebf c\u1ee7a ch\u00fang, \u0111\u1ea3m b\u1ea3o tr\u1ea1ng th\u00e1i m\u1eb7c \u0111\u1ecbnh khi c\u00e1c ti\u1ebfp \u0111i\u1ec3m \u0111i\u1ec7n \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u00e0 d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua m\u1ea1ch. C\u1ea5u h\u00ecnh n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 duy tr\u00ec an to\u00e0n v\u1eadn h\u00e0nh trong c\u00e1c thi\u1ebft l\u1eadp c\u00f4ng nghi\u1ec7p. Khi \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t, c\u00e1c ti\u1ebfp \u0111i\u1ec3m c\u1ee7a n\u00fat s\u1ebd m\u1edf ra, ngay l\u1eadp t\u1ee9c ng\u1eaft ngu\u1ed3n \u0111i\u1ec7n cung c\u1ea5p cho m\u00e1y m\u00f3c \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u00e0 k\u00edch ho\u1ea1t qu\u00e1 tr\u00ecnh t\u1eaft m\u00e1y nhanh ch\u00f3ng. C\u00e1c ti\u00eau chu\u1ea9n an to\u00e0n qu\u1ed1c t\u1ebf khuy\u1ebfn ngh\u1ecb c\u00e1ch ti\u1ebfp c\u1eadn n\u00e0y v\u00ec n\u00f3 cung c\u1ea5p c\u01a1 ch\u1ebf d\u1eebng kh\u1ea9n c\u1ea5p \u0111\u00e1ng tin c\u1eady v\u00e0 ph\u1ea3n h\u1ed3i nhanh h\u01a1n so v\u1edbi c\u1ea5u h\u00ecnh th\u01b0\u1eddng m\u1edf (NO). Vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1c ti\u1ebfp \u0111i\u1ec3m NC trong c\u00e1c n\u00fat d\u1eebng \u0111i\u1ec7n t\u1eed l\u00e0 m\u1ed9t th\u00f4ng l\u1ec7 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u ng\u00e0nh c\u00f4ng nghi\u1ec7p kh\u00e1c nhau, \u01b0u ti\u00ean s\u1ef1 an to\u00e0n c\u1ee7a ng\u01b0\u1eddi lao \u0111\u1ed9ng v\u00e0 b\u1ea3o v\u1ec7 thi\u1ebft b\u1ecb.<\/p>\n

C\u01a1 ch\u1ebf ph\u1ea3n \u1ee9ng t\u1ee9c th\u1eddi<\/h2>\n

Kh\u1ea3 n\u0103ng ph\u1ea3n \u1ee9ng nhanh c\u1ee7a c\u00e1c n\u00fat d\u1eebng kh\u1ea9n c\u1ea5p th\u01b0\u1eddng \u0111\u00f3ng (NC) l\u00e0 m\u1ed9t t\u00ednh n\u0103ng an to\u00e0n quan tr\u1ecdng trong c\u00e1c thi\u1ebft l\u1eadp c\u00f4ng nghi\u1ec7p. Khi \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t, c\u00e1c n\u00fat n\u00e0y s\u1ebd m\u1edf m\u1ea1ch ngay l\u1eadp t\u1ee9c, c\u1eaft ngu\u1ed3n \u0111i\u1ec7n cho m\u00e1y m\u00f3c trong mili gi\u00e2y. S\u1ef1 gi\u00e1n \u0111o\u1ea1n ngay l\u1eadp t\u1ee9c n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 ng\u0103n ng\u1eeba tai n\u1ea1n v\u00e0 gi\u1ea3m thi\u1ec3u th\u01b0\u01a1ng t\u00edch ti\u1ec1m \u1ea9n trong c\u00e1c t\u00ecnh hu\u1ed1ng kh\u1ea9n c\u1ea5p. S\u1ef1 chuy\u1ec3n \u0111\u1ed5i nhanh ch\u00f3ng t\u1eeb tr\u1ea1ng th\u00e1i \u0111\u00f3ng sang tr\u1ea1ng th\u00e1i m\u1edf \u0111\u1ea3m b\u1ea3o r\u1eb1ng ngay c\u1ea3 khi n\u00fat kh\u00f4ng \u0111\u01b0\u1ee3c nh\u1ea5n ho\u00e0n to\u00e0n, n\u00f3 v\u1eabn c\u00f3 th\u1ec3 d\u1eebng ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3. L\u1ef1a ch\u1ecdn thi\u1ebft k\u1ebf n\u00e0y \u01b0u ti\u00ean s\u1ef1 an to\u00e0n c\u1ee7a ng\u01b0\u1eddi lao \u0111\u1ed9ng b\u1eb1ng c\u00e1ch cung c\u1ea5p c\u01a1 ch\u1ebf t\u1eaft g\u1ea7n nh\u01b0 t\u1ee9c th\u1eddi, khi\u1ebfn c\u00e1c ti\u1ebfp \u0111i\u1ec3m NC tr\u1edf th\u00e0nh c\u1ea5u h\u00ecnh \u0111\u01b0\u1ee3c \u01b0u ti\u00ean cho c\u00e1c h\u1ec7 th\u1ed1ng d\u1eebng kh\u1ea9n c\u1ea5p trong nhi\u1ec1u ng\u00e0nh c\u00f4ng nghi\u1ec7p kh\u00e1c nhau.<\/p>\n

Thi\u1ebft k\u1ebf an to\u00e0n ch\u1ed1ng l\u1ed7i<\/h2>\n

Thi\u1ebft k\u1ebf an to\u00e0n c\u1ee7a n\u00fat d\u1eebng kh\u1ea9n c\u1ea5p th\u01b0\u1eddng \u0111\u00f3ng (NC) cung c\u1ea5p th\u00eam m\u1ed9t l\u1edbp an to\u00e0n trong c\u00e1c thi\u1ebft l\u1eadp c\u00f4ng nghi\u1ec7p. N\u1ebfu x\u1ea3y ra l\u1ed7i trong m\u1ea1ch, ch\u1eb3ng h\u1ea1n nh\u01b0 ng\u1eaft k\u1ebft n\u1ed1i ho\u1eb7c \u0111\u1ee9t d\u00e2y, c\u1ea5u h\u00ecnh NC \u0111\u1ea3m b\u1ea3o r\u1eb1ng thi\u1ebft b\u1ecb s\u1ebd t\u1ef1 \u0111\u1ed9ng d\u1eebng ho\u1ea1t \u0111\u1ed9ng. T\u00ednh n\u0103ng an to\u00e0n v\u1ed1n c\u00f3 n\u00e0y ng\u0103n kh\u00f4ng cho m\u00e1y m\u00f3c ch\u1ea1y khi kh\u00f4ng c\u1ea7n thi\u1ebft, gi\u1ea3m nguy c\u01a1 tai n\u1ea1n ho\u1eb7c h\u01b0 h\u1ecfng thi\u1ebft b\u1ecb. C\u01a1 ch\u1ebf an to\u00e0n \u0111\u1eb7c bi\u1ec7t c\u00f3 gi\u00e1 tr\u1ecb trong c\u00e1c t\u00ecnh hu\u1ed1ng m\u00e0 ho\u1ea1t \u0111\u1ed9ng li\u00ean t\u1ee5c c\u00f3 th\u1ec3 g\u00e2y nguy hi\u1ec3m, v\u00ec n\u00f3 m\u1eb7c \u0111\u1ecbnh \u1edf tr\u1ea1ng th\u00e1i an to\u00e0n ngay c\u1ea3 trong tr\u01b0\u1eddng h\u1ee3p h\u1ec7 th\u1ed1ng b\u1ecb l\u1ed7i ho\u1eb7c m\u1ea5t \u0111i\u1ec7n. Tri\u1ebft l\u00fd thi\u1ebft k\u1ebf n\u00e0y ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c ti\u00eau chu\u1ea9n an to\u00e0n qu\u1ed1c t\u1ebf v\u00e0 c\u00e1c th\u00f4ng l\u1ec7 t\u1ed1t nh\u1ea5t cho h\u1ec7 th\u1ed1ng d\u1eebng kh\u1ea9n c\u1ea5p, \u01b0u ti\u00ean b\u1ea3o v\u1ec7 ng\u01b0\u1eddi lao \u0111\u1ed9ng v\u00e0 t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a thi\u1ebft b\u1ecb trong c\u00e1c m\u00f4i tr\u01b0\u1eddng c\u00f3 kh\u1ea3 n\u0103ng nguy hi\u1ec3m.<\/p>\n

L\u1ee3i \u00edch v\u1ec1 \u0111\u1ed9 tin c\u1eady ho\u1ea1t \u0111\u1ed9ng<\/h2>\n

C\u1ea5u h\u00ecnh th\u01b0\u1eddng \u0111\u00f3ng c\u1ee7a c\u00e1c n\u00fat d\u1eebng kh\u1ea9n c\u1ea5p gi\u00fap t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 tin c\u1eady khi v\u1eadn h\u00e0nh theo nhi\u1ec1u c\u00e1ch. B\u1eb1ng c\u00e1ch duy tr\u00ec m\u1ea1ch k\u00edn trong qu\u00e1 tr\u00ecnh v\u1eadn h\u00e0nh b\u00ecnh th\u01b0\u1eddng, c\u00e1c n\u00fat n\u00e0y c\u00f3 th\u1ec3 ph\u00e1t hi\u1ec7n v\u00e0 ph\u1ea3n h\u1ed3i khi k\u00edch ho\u1ea1t m\u1ed9t ph\u1ea7n, \u0111\u1ea3m b\u1ea3o an to\u00e0n ngay c\u1ea3 khi kh\u00f4ng \u0111\u01b0\u1ee3c nh\u1ea5n ho\u00e0n to\u00e0n. Thi\u1ebft k\u1ebf n\u00e0y c\u0169ng cho ph\u00e9p theo d\u00f5i li\u00ean t\u1ee5c t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a m\u1ea1ch, k\u00edch ho\u1ea1t ngay l\u1eadp t\u1ee9c khi c\u00f3 b\u1ea5t k\u1ef3 l\u1ed7i ho\u1eb7c ng\u1eaft k\u1ebft n\u1ed1i n\u00e0o x\u1ea3y ra. Ngo\u00e0i ra, thi\u1ebft l\u1eadp NC gi\u00fap gi\u1ea3m kh\u1ea3 n\u0103ng b\u00e1o \u0111\u1ed9ng sai ho\u1eb7c k\u00edch ho\u1ea1t ngo\u00e0i \u00fd mu\u1ed1n v\u00ec c\u1ea7n ph\u1ea3i c\u00f3 h\u00e0nh \u0111\u1ed9ng c\u1ed1 \u00fd \u0111\u1ec3 ng\u1eaft m\u1ea1ch. C\u00e1c t\u00ednh n\u0103ng n\u00e0y c\u00f9ng nhau g\u00f3p ph\u1ea7n t\u1ea1o n\u00ean h\u1ec7 th\u1ed1ng d\u1eebng kh\u1ea9n c\u1ea5p m\u1ea1nh m\u1ebd v\u00e0 \u0111\u00e1ng tin c\u1eady h\u01a1n, r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 duy tr\u00ec c\u00e1c ti\u00eau chu\u1ea9n an to\u00e0n trong m\u00f4i tr\u01b0\u1eddng c\u00f4ng nghi\u1ec7p, n\u01a1i ph\u1ea3n \u1ee9ng nhanh ch\u00f3ng v\u00e0 \u0111\u00e1ng tin c\u1eady l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft.<\/p>\n

B\u00e0i vi\u1ebft li\u00ean quan<\/h2>\n

N\u00fat d\u1eebng kh\u1ea9n c\u1ea5p ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o<\/a><\/p>\n

H\u01b0\u1edbng d\u1eabn \u0111\u1ea7y \u0111\u1ee7 v\u1ec1 c\u00f4ng t\u1eafc n\u00fat nh\u1ea5n<\/a><\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

Emergency stop buttons, commonly used in industrial and safety applications, are typically designed with normally closed (NC) contacts. This configuration ensures a fail-safe mechanism, allowing immediate interruption of power to machinery when activated, thereby enhancing safety and operational reliability. Comparison between NO contacts and NC contacts NO Contact NC Contact Electrical Symbol Overview of the […]<\/p>\n","protected":false},"author":1,"featured_media":11278,"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-11266","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\/11266","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=11266"}],"version-history":[{"count":0,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/posts\/11266\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/media\/11278"}],"wp:attachment":[{"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/media?parent=11266"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/categories?post=11266"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/tags?post=11266"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}