{"id":19333,"date":"2025-10-21T01:45:56","date_gmt":"2025-10-20T17:45:56","guid":{"rendered":"https:\/\/viox.com\/?p=19333"},"modified":"2025-10-21T01:45:58","modified_gmt":"2025-10-20T17:45:58","slug":"how-to-wire-a-time-relay-for-a-motor-starter","status":"publish","type":"post","link":"https:\/\/test.viox.com\/vi\/how-to-wire-a-time-relay-for-a-motor-starter\/","title":{"rendered":"C\u00e1ch \u0110\u1ea5u D\u00e2y R\u01a1 Le Th\u1eddi Gian cho Kh\u1edfi \u0110\u1ed9ng \u0110\u1ed9ng C\u01a1"},"content":{"rendered":"
\n

Cu\u1ed9c G\u1ecdi L\u00fac 3 Gi\u1edd S\u00e1ng M\u00e0 M\u1ecdi K\u1ef9 S\u01b0 Nh\u00e0 M\u00e1y \u0110\u1ec1u Khi\u1ebfp S\u1ee3<\/h2>\n

H\u00e3y h\u00ecnh dung: M\u00e1y b\u01a1m n\u01b0\u1edbc ch\u00ednh c\u1ee7a c\u01a1 s\u1edf b\u1ea1n v\u1eeba b\u1ecb ng\u1eaft\u2014l\u1ea1i n\u1eefa. L\u00fac n\u00e0y l\u00e0 3 gi\u1edd s\u00e1ng, qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t b\u1ecb \u0111\u00ecnh tr\u1ec7 v\u00e0 \u0111\u1ed9i b\u1ea3o tr\u00ec c\u1ee7a b\u1ea1n \u0111ang tranh nhau kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1. Sau m\u1ed9t gi\u1edd t\u00ecm ki\u1ebfm, b\u1ea1n ph\u00e1t hi\u1ec7n ra th\u1ee7 ph\u1ea1m: ba \u0111\u1ed9ng c\u01a1 50-HP c\u1ed1 g\u1eafng kh\u1edfi \u0111\u1ed9ng \u0111\u1ed3ng th\u1eddi, t\u1ea1o ra d\u00f2ng \u0111i\u1ec7n kh\u1edfi \u0111\u1ed9ng l\u1edbn l\u00e0m qu\u00e1 t\u1ea3i h\u1ec7 th\u1ed1ng \u0111i\u1ec7n c\u1ee7a b\u1ea1n. S\u1ee5t \u00e1p nghi\u00eam tr\u1ecdng \u0111\u1ebfn m\u1ee9c c\u00e1c thi\u1ebft b\u1ecb kh\u00e1c c\u1ee7a b\u1ea1n b\u1ecb ng\u1eaft k\u1ebft n\u1ed1i nh\u01b0 qu\u00e2n c\u1edd domino.<\/p>\n

\"water<\/p>\n

T\u00ecnh hu\u1ed1ng n\u00e0y di\u1ec5n ra h\u00e0ng ng\u00e0y trong c\u00e1c c\u01a1 s\u1edf c\u00f4ng nghi\u1ec7p v\u00e0 nguy\u00ean nh\u00e2n g\u1ed1c r\u1ec5 h\u1ea7u nh\u01b0 lu\u00f4n gi\u1ed1ng nhau: \u0111\u1ed9ng c\u01a1 kh\u1edfi \u0111\u1ed9ng m\u00e0 kh\u00f4ng c\u00f3 \u0111i\u1ec1u khi\u1ec3n th\u1eddi gian ph\u1ed1i h\u1ee3p<\/strong>. Khi nhi\u1ec1u \u0111\u1ed9ng c\u01a1 kh\u1edfi \u0111\u1ed9ng c\u00f9ng l\u00fac, d\u00f2ng \u0111i\u1ec7n kh\u1edfi \u0111\u1ed9ng k\u1ebft h\u1ee3p (th\u01b0\u1eddng g\u1ea5p 6-8 l\u1ea7n d\u00f2ng \u0111i\u1ec7n \u0111\u1ea7y t\u1ea3i c\u1ee7a \u0111\u1ed9ng c\u01a1) c\u00f3 th\u1ec3 v\u01b0\u1ee3t qu\u00e1 c\u00f4ng su\u1ea5t \u0111\u1ea7u v\u00e0o c\u1ee7a b\u1ea1n, g\u00e2y ra c\u00e1c chuy\u1ebfn \u0111i phi\u1ec1n to\u00e1i tr\u00ean c\u00e1c b\u1ed9 ng\u1eaft m\u1ea1ch ng\u01b0\u1ee3c d\u00f2ng ho\u1eb7c g\u00e2y ra s\u1ee5t \u00e1p g\u00e2y h\u1ea1i lan t\u1ecfa kh\u1eafp c\u01a1 s\u1edf c\u1ee7a b\u1ea1n.<\/p>\n

T\u1ea1i Sao B\u1ed9 Kh\u1edfi \u0110\u1ed9ng \u0110\u1ed9ng C\u01a1 Ti\u00eau Chu\u1ea9n Kh\u00f4ng \u0110\u1ea1t Y\u00eau C\u1ea7u<\/h2>\n

B\u1ed9 kh\u1edfi \u0111\u1ed9ng \u0111\u1ed9ng c\u01a1 tr\u1ef1c ti\u1ebfp (DOL) truy\u1ec1n th\u1ed1ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 th\u1ef1c hi\u1ec7n m\u1ed9t vi\u1ec7c: \u0111\u00f3ng c\u00e1c ti\u1ebfp \u0111i\u1ec3m c\u1ee7a ch\u00fang v\u00e0 c\u1ea5p \u0111i\u1ec7n cho \u0111\u1ed9ng c\u01a1 ngay l\u1eadp t\u1ee9c khi \u0111\u01b0\u1ee3c l\u1ec7nh. Kh\u00f4ng c\u00f3 tr\u00ed th\u00f4ng minh, kh\u00f4ng c\u00f3 tr\u00ecnh t\u1ef1 v\u00e0 kh\u00f4ng c\u00f3 \u0111\u1ed9 tr\u1ec5. Trong c\u00e1c \u1ee9ng d\u1ee5ng m\u1ed9t \u0111\u1ed9ng c\u01a1, \u0111i\u1ec1u n\u00e0y ho\u1ea1t \u0111\u1ed9ng t\u1ed1t. Nh\u01b0ng trong c\u00e1c c\u01a1 s\u1edf c\u00f3 nhi\u1ec1u \u0111\u1ed9ng c\u01a1, h\u1ec7 th\u1ed1ng b\u0103ng t\u1ea3i ho\u1eb7c thi\u1ebft b\u1ecb y\u00eau c\u1ea7u tr\u00ecnh t\u1ef1 kh\u1edfi \u0111\u1ed9ng theo giai \u0111o\u1ea1n, b\u1ed9 kh\u1edfi \u0111\u1ed9ng DOL m\u1ed9t m\u00ecnh t\u1ea1o ra ba v\u1ea5n \u0111\u1ec1 quan tr\u1ecdng:<\/p>\n

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  1. T\u0103ng \u0110\u1ed9t Bi\u1ebfn Nhu C\u1ea7u \u0110i\u1ec7n<\/strong>: Kh\u1edfi \u0111\u1ed9ng \u0111\u1ed3ng th\u1eddi l\u00e0m t\u0103ng d\u00f2ng \u0111i\u1ec7n kh\u1edfi \u0111\u1ed9ng, c\u00f3 kh\u1ea3 n\u0103ng v\u01b0\u1ee3t qu\u00e1 ph\u00ed nhu c\u1ea7u c\u1ee7a ti\u1ec7n \u00edch c\u1ee7a b\u1ea1n ho\u1eb7c l\u00e0m ng\u1eaft c\u00e1c b\u1ed9 ng\u1eaft m\u1ea1ch ch\u00ednh<\/li>\n
  2. S\u1ed1c C\u01a1 H\u1ecdc<\/strong>: D\u00e2y \u0111ai b\u0103ng t\u1ea3i, h\u1ec7 th\u1ed1ng b\u01a1m v\u00e0 thi\u1ebft b\u1ecb quy tr\u00ecnh c\u00f3 th\u1ec3 b\u1ecb h\u01b0 h\u1ecfng c\u01a1 h\u1ecdc khi t\u1ea5t c\u1ea3 c\u00e1c th\u00e0nh ph\u1ea7n tham gia ngay l\u1eadp t\u1ee9c m\u00e0 kh\u00f4ng c\u00f3 th\u1eddi gian t\u0103ng t\u1ed1c<\/li>\n
  3. Gi\u00e1n \u0110o\u1ea1n Quy Tr\u00ecnh<\/strong>: C\u00e1c tr\u00ecnh t\u1ef1 quan tr\u1ecdng (nh\u01b0 qu\u1ea1t th\u00f4ng gi\u00f3 tr\u01b0\u1edbc khi \u0111\u1ed1t ho\u1eb7c b\u01a1m l\u00e0m m\u00e1t tr\u01b0\u1edbc khi m\u00e1y n\u00e9n) y\u00eau c\u1ea7u ph\u1ed1i h\u1ee3p th\u1eddi gian m\u00e0 b\u1ed9 kh\u1edfi \u0111\u1ed9ng c\u01a1 b\u1ea3n kh\u00f4ng th\u1ec3 cung c\u1ea5p<\/li>\n<\/ol>\n

    \u201cGi\u1ea3i ph\u00e1p\u201d th\u00f4ng th\u01b0\u1eddng\u2014kh\u1edfi \u0111\u1ed9ng so le th\u1ee7 c\u00f4ng ho\u1eb7c s\u1eed d\u1ee5ng l\u1eadp tr\u00ecnh PLC ph\u1ee9c t\u1ea1p\u2014ho\u1eb7c l\u00e0 kh\u00f4ng \u0111\u00e1ng tin c\u1eady (l\u1ed7i c\u1ee7a con ng\u01b0\u1eddi) ho\u1eb7c t\u1ed1n k\u00e9m (th\u1eddi gian k\u1ef9 thu\u1eadt v\u00e0 chi ph\u00ed ph\u1ea7n c\u1ee9ng).<\/p>\n

    \"VIOX<\/p>\n

    R\u01a1 le th\u1eddi gian VIOX<\/a><\/p>\n

    Kho\u1ea3nh Kh\u1eafc Aha!: R\u01a1 Le Th\u1eddi Gian Nh\u01b0 B\u1ed9 \u0110i\u1ec1u Khi\u1ec3n Giao Th\u00f4ng Kh\u1edfi \u0110\u1ed9ng C\u1ee7a B\u1ea1n<\/h2>\n

    \u0110\u00e2y l\u00e0 n\u01a1i r\u01a1 le th\u1eddi gian bi\u1ebfn \u0111\u1ed5i chi\u1ebfn l\u01b0\u1ee3c \u0111i\u1ec1u khi\u1ec3n \u0111\u1ed9ng c\u01a1 c\u1ee7a b\u1ea1n.<\/strong> H\u00e3y ngh\u0129 v\u1ec1 m\u1ed9t r\u01a1 le th\u1eddi gian nh\u01b0 m\u1ed9t \u0111\u00e8n giao th\u00f4ng cho h\u1ec7 th\u1ed1ng \u0111i\u1ec7n c\u1ee7a b\u1ea1n\u2014n\u00f3 \u0111i\u1ec1u khi\u1ec3n khi n\u00e0o<\/em> d\u00f2ng \u0111i\u1ec7n \u0111\u1ebfn cu\u1ed9n d\u00e2y kh\u1edfi \u0111\u1ed9ng \u0111\u1ed9ng c\u01a1 c\u1ee7a b\u1ea1n, kh\u00f4ng ph\u1ea3i n\u1ebfu<\/em> d\u00f2ng \u0111i\u1ec7n \u0111\u00f3. B\u1eb1ng c\u00e1ch ch\u00e8n m\u1ed9t r\u01a1 le th\u1eddi gian nh\u1ecf g\u1ecdn gi\u1eefa c\u00f4ng t\u1eafc \u0111i\u1ec1u khi\u1ec3n c\u1ee7a b\u1ea1n v\u00e0 m\u1ea1ch cu\u1ed9n d\u00e2y kh\u1edfi \u0111\u1ed9ng \u0111\u1ed9ng c\u01a1, b\u1ea1n c\u00f3 \u0111\u01b0\u1ee3c kh\u1ea3 n\u0103ng ki\u1ec3m so\u00e1t ch\u00ednh x\u00e1c, c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed1i v\u1edbi tr\u00ecnh t\u1ef1 kh\u1edfi \u0111\u1ed9ng m\u00e0 kh\u00f4ng c\u1ea7n PLC \u0111\u1eaft ti\u1ec1n ho\u1eb7c l\u1eadp tr\u00ecnh ph\u1ee9c t\u1ea1p.<\/p>\n

    \u0110\u00e2y l\u00e0 s\u1ef1 \u0111\u01a1n gi\u1ea3n thanh l\u1ecbch: Khi n\u00fat kh\u1edfi \u0111\u1ed9ng c\u1ee7a b\u1ea1n \u0111\u01b0\u1ee3c nh\u1ea5n, r\u01a1 le th\u1eddi gian b\u1eaft \u0111\u1ea7u \u0111\u1ebfm ng\u01b0\u1ee3c (tr\u1ec5 b\u1eadt) ho\u1eb7c gi\u1eef c\u00e1c ti\u1ebfp \u0111i\u1ec3m c\u1ee7a n\u00f3 \u0111\u00f3ng trong m\u1ed9t kho\u1ea3ng th\u1eddi gian nh\u1ea5t \u0111\u1ecbnh (tr\u1ec5 t\u1eaft). Ch\u1ec9 sau kho\u1ea3ng th\u1eddi gian ch\u00ednh x\u00e1c n\u00e0y, n\u00f3 m\u1edbi ho\u00e0n th\u00e0nh m\u1ea1ch \u0111\u1ebfn cu\u1ed9n d\u00e2y kh\u1edfi \u0111\u1ed9ng \u0111\u1ed9ng c\u01a1 c\u1ee7a b\u1ea1n, c\u1ea5p \u0111i\u1ec7n cho c\u00f4ng t\u1eafc t\u01a1 v\u00e0 kh\u1edfi \u0111\u1ed9ng \u0111\u1ed9ng c\u01a1 c\u1ee7a b\u1ea1n. K\u1ebft qu\u1ea3? Kh\u1edfi \u0111\u1ed9ng \u0111\u1ed9ng c\u01a1 ph\u1ed1i h\u1ee3p, tu\u1ea7n t\u1ef1 gi\u00fap lo\u1ea1i b\u1ecf xung \u0111\u1ed9t d\u00f2ng \u0111i\u1ec7n kh\u1edfi \u0111\u1ed9ng v\u00e0 b\u1ea3o v\u1ec7 thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n.<\/p>\n

    \u0110i\u1ec3m ch\u00ednh<\/strong>: R\u01a1 le th\u1eddi gian c\u1ee7a b\u1ea1n kh\u00f4ng \u0111i\u1ec1u khi\u1ec3n tr\u1ef1c ti\u1ebfp \u0111\u1ed9ng c\u01a1\u2014n\u00f3 \u0111i\u1ec1u khi\u1ec3n m\u1ea1ch cu\u1ed9n d\u00e2y kh\u1edfi \u0111\u1ed9ng \u0111\u1ed9ng c\u01a1. Logic \u0111i\u1ec1u khi\u1ec3n d\u00f2ng \u0111i\u1ec7n th\u1ea5p n\u00e0y c\u00f3 ngh\u0129a l\u00e0 b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng m\u1ed9t r\u01a1 le nh\u1ecf g\u1ecdn v\u1edbi \u0111\u1ecbnh m\u1ee9c ti\u1ebfp \u0111i\u1ec3m nh\u1ecf \u0111\u1ec3 \u0111i\u1ec1u khi\u1ec3n m\u1ed9t b\u1ed9 kh\u1edfi \u0111\u1ed9ng \u0111\u1ed9ng c\u01a1 l\u1edbn.<\/em><\/p><\/blockquote>\n

    H\u01b0\u1edbng D\u1eabn \u0110i D\u00e2y T\u1eebng B\u01b0\u1edbc Ho\u00e0n Ch\u1ec9nh<\/h2>\n

    B\u01b0\u1edbc 1: Gh\u00e9p Lo\u1ea1i R\u01a1 Le C\u1ee7a B\u1ea1n V\u1edbi \u1ee8ng D\u1ee5ng C\u1ee7a B\u1ea1n<\/h3>\n

    Tr\u01b0\u1edbc khi b\u1ea1n ch\u1ea1m v\u00e0o m\u1ed9t s\u1ee3i d\u00e2y n\u00e0o, b\u1ea1n ph\u1ea3i x\u00e1c \u0111\u1ecbnh xem b\u1ea1n c\u00f3 c\u1ea7n m\u1ed9t tr\u1ec5 b\u1eadt<\/strong> hay ra-ch\u1eadm tr\u1ec5<\/strong> r\u01a1 le th\u1eddi gian\u2014l\u00e0m sai \u0111i\u1ec1u n\u00e0y v\u00e0 \u0111\u1ed9ng c\u01a1 c\u1ee7a b\u1ea1n s\u1ebd kh\u1edfi \u0111\u1ed9ng ho\u00e0n to\u00e0n sai th\u1eddi \u0111i\u1ec3m.<\/p>\n

    R\u01a1 le th\u1eddi gian tr\u1ec5<\/strong> (c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 r\u01a1 le tr\u1ec5 b\u1eadt ho\u1eb7c DORM):<\/p>\n

      \n
    • Khi n\u00e0o n\u00ean s\u1eed d\u1ee5ng<\/strong>: Khi b\u1ea1n c\u1ea7n m\u1ed9t \u0111\u1ed9ng c\u01a1 kh\u1edfi \u0111\u1ed9ng sau<\/em> m\u1ed9t \u0111\u1ed9 tr\u1ec5 c\u1ee5 th\u1ec3 sau l\u1ec7nh kh\u1edfi \u0111\u1ed9ng<\/li>\n
    • \u1ee8ng d\u1ee5ng ph\u1ed5 bi\u1ebfn<\/strong>: Kh\u1edfi \u0111\u1ed9ng b\u01a1m tu\u1ea7n t\u1ef1, kh\u1edfi \u0111\u1ed9ng qu\u1ea1t tr\u1ec5, d\u00e0n d\u1ef1ng b\u0103ng t\u1ea3i<\/li>\n
    • L\u00e0m th\u1ebf n\u00e0o n\u00f3 ho\u1ea1t \u0111\u1ed9ng<\/strong>: Khi cu\u1ed9n d\u00e2y r\u01a1 le \u0111\u01b0\u1ee3c c\u1ea5p \u0111i\u1ec7n, n\u00f3 b\u1eaft \u0111\u1ea7u t\u00ednh th\u1eddi gian. Sau khi \u0111\u1ed9 tr\u1ec5 \u0111\u1eb7t tr\u01b0\u1edbc h\u1ebft h\u1ea1n, c\u00e1c ti\u1ebfp \u0111i\u1ec3m \u0111\u1ea7u ra \u0111\u00f3ng l\u1ea1i, c\u1ea5p \u0111i\u1ec7n cho cu\u1ed9n d\u00e2y kh\u1edfi \u0111\u1ed9ng \u0111\u1ed9ng c\u01a1<\/li>\n<\/ul>\n

      R\u01a1 le th\u1eddi gian tr\u1ec5 t\u1eaft<\/strong> (c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 r\u01a1 le tr\u1ec5 t\u1eaft ho\u1eb7c DODB):<\/p>\n

        \n
      • Khi n\u00e0o n\u00ean s\u1eed d\u1ee5ng<\/strong>: Khi b\u1ea1n c\u1ea7n m\u1ed9t \u0111\u1ed9ng c\u01a1 ti\u1ebfp t\u1ee5c ch\u1ea1y trong m\u1ed9t kho\u1ea3ng th\u1eddi gian sau<\/em> l\u1ec7nh d\u1eebng<\/li>\n
      • \u1ee8ng d\u1ee5ng ph\u1ed5 bi\u1ebfn<\/strong>: Qu\u1ea1t th\u00f4ng gi\u00f3 ph\u1ea3i ch\u1ea1y sau khi t\u1eaft \u0111\u1ea7u \u0111\u1ed1t, b\u01a1m l\u00e0m m\u00e1t ti\u1ebfp t\u1ee5c sau khi thi\u1ebft b\u1ecb quy tr\u00ecnh d\u1eebng<\/li>\n
      • L\u00e0m th\u1ebf n\u00e0o n\u00f3 ho\u1ea1t \u0111\u1ed9ng<\/strong>: Khi cu\u1ed9n d\u00e2y r\u01a1 le b\u1ecb m\u1ea5t \u0111i\u1ec7n, n\u00f3 b\u1eaft \u0111\u1ea7u t\u00ednh th\u1eddi gian. C\u00e1c ti\u1ebfp \u0111i\u1ec3m \u0111\u1ea7u ra v\u1eabn \u0111\u00f3ng (gi\u1eef cho \u0111\u1ed9ng c\u01a1 ch\u1ea1y) cho \u0111\u1ebfn khi \u0111\u1ed9 tr\u1ec5 h\u1ebft h\u1ea1n<\/li>\n<\/ul>\n

        M\u1eb9o chuy\u00ean nghi\u1ec7p<\/strong>: Trong 80% \u1ee9ng d\u1ee5ng tr\u00ecnh t\u1ef1 c\u00f4ng nghi\u1ec7p, b\u1ea1n s\u1ebd s\u1eed d\u1ee5ng r\u01a1 le tr\u1ec5 b\u1eadt. R\u01a1 le tr\u1ec5 t\u1eaft \u0111\u01b0\u1ee3c chuy\u00ean d\u1ee5ng cho kh\u00f3a li\u00ean \u0111\u1ed9ng an to\u00e0n v\u00e0 c\u00e1c y\u00eau c\u1ea7u l\u00e0m m\u00e1t\/th\u00f4ng gi\u00f3. N\u1ebfu b\u1ea1n ch\u1ec9 \u0111\u01a1n gi\u1ea3n l\u00e0 c\u1ed1 g\u1eafng so le nhi\u1ec1u l\u1ea7n kh\u1edfi \u0111\u1ed9ng \u0111\u1ed9ng c\u01a1, h\u00e3y b\u1eaft \u0111\u1ea7u v\u1edbi tr\u1ec5 b\u1eadt.<\/em><\/p><\/blockquote>\n

        B\u01b0\u1edbc 2: X\u00e1c Minh \u0110\u1ecbnh M\u1ee9c \u0110i\u1ec7n Quan Tr\u1ecdng (B\u1ea3ng Th\u00f4ng S\u1ed1 K\u1ef9 Thu\u1eadt Kh\u00f4ng N\u00f3i D\u1ed1i)<\/h3>\n

        \u0110\u00e2y l\u00e0 n\u01a1i h\u1ea7u h\u1ebft c\u00e1c l\u1ed7i \u0111i d\u00e2y b\u1eaft ngu\u1ed3n\u2014kh\u00f4ng ph\u1ea3i \u1edf c\u00e1c k\u1ebft n\u1ed1i v\u1eadt l\u00fd, m\u00e0 l\u00e0 \u1edf giai \u0111o\u1ea1n \u0111\u1eb7c t\u1ea3. B\u1ea1n ph\u1ea3i x\u00e1c minh ba \u0111\u1ecbnh m\u1ee9c quan tr\u1ecdng:<\/p>\n

        A. \u0110i\u1ec7n \u00c1p M\u1ea1ch \u0110i\u1ec1u Khi\u1ec3n<\/strong><\/p>\n

        \u0110i\u1ec7n \u00e1p cu\u1ed9n d\u00e2y c\u1ee7a r\u01a1 le th\u1eddi gian c\u1ee7a b\u1ea1n ph\u1ea3i kh\u1edbp ch\u00ednh x\u00e1c<\/strong> \u0111i\u1ec7n \u00e1p m\u1ea1ch \u0111i\u1ec1u khi\u1ec3n c\u1ee7a b\u1ed9 kh\u1edfi \u0111\u1ed9ng \u0111\u1ed9ng c\u01a1 c\u1ee7a b\u1ea1n. \u0110i\u1ec7n \u00e1p ph\u1ed5 bi\u1ebfn bao g\u1ed3m:<\/p>\n

          \n
        • 24V DC (ng\u00e0y c\u00e0ng ph\u1ed5 bi\u1ebfn trong c\u00e1c h\u1ec7 th\u1ed1ng hi\u1ec7n \u0111\u1ea1i c\u00f3 t\u00edch h\u1ee3p PLC)<\/li>\n
        • 120V AC (ti\u00eau chu\u1ea9n B\u1eafc M\u1ef9 cho m\u1ea1ch \u0111i\u1ec1u khi\u1ec3n)<\/li>\n
        • 240V AC (\u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p v\u00e0 qu\u1ed1c t\u1ebf)<\/li>\n<\/ul>\n

          Ki\u1ec3m tra s\u01a1 \u0111\u1ed3 \u0111i d\u00e2y c\u1ee7a b\u1ed9 kh\u1edfi \u0111\u1ed9ng \u0111\u1ed9ng c\u01a1 c\u1ee7a b\u1ea1n\u2014\u0111i\u1ec7n \u00e1p m\u1ea1ch \u0111i\u1ec1u khi\u1ec3n th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00e1n nh\u00e3n tr\u00ean s\u01a1 \u0111\u1ed3 ho\u1eb7c tr\u00ean ch\u00ednh cu\u1ed9n d\u00e2y c\u1ee7a b\u1ed9 kh\u1edfi \u0111\u1ed9ng. S\u1ef1 kh\u00f4ng ph\u00f9 h\u1ee3p \u1edf \u0111\u00e2y c\u00f3 ngh\u0129a l\u00e0 r\u01a1 le b\u1ecb h\u1ecfng ngay l\u1eadp t\u1ee9c ho\u1eb7c, t\u1ed1t nh\u1ea5t l\u00e0 ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng \u0111\u00e1ng tin c\u1eady.<\/p>\n

          B. \u0110\u1ecbnh M\u1ee9c Ti\u1ebfp \u0110i\u1ec3m (T\u1ea3i So V\u1edbi Dung L\u01b0\u1ee3ng R\u01a1 Le)<\/strong><\/p>\n

          C\u00e1c ti\u1ebfp \u0111i\u1ec3m \u0111\u1ea7u ra c\u1ee7a r\u01a1 le th\u1eddi gian c\u1ee7a b\u1ea1n ph\u1ea3i \u0111\u01b0\u1ee3c \u0111\u1ecbnh m\u1ee9c \u0111\u1ec3 x\u1eed l\u00fd d\u00f2ng \u0111i\u1ec7n cu\u1ed9n d\u00e2y c\u1ee7a b\u1ed9 kh\u1edfi \u0111\u1ed9ng \u0111\u1ed9ng c\u01a1. \u0110\u00e2y l\u00e0 c\u00e1ch t\u00ednh:<\/p>\n

            \n
          1. T\u00ecm \u0111\u1ecbnh m\u1ee9c d\u00f2ng \u0111i\u1ec7n cu\u1ed9n d\u00e2y c\u1ee7a b\u1ed9 kh\u1edfi \u0111\u1ed9ng \u0111\u1ed9ng c\u01a1 c\u1ee7a b\u1ea1n (th\u01b0\u1eddng \u0111\u01b0\u1ee3c li\u1ec7t k\u00ea b\u1eb1ng miliampe ho\u1eb7c watt tr\u00ean cu\u1ed9n d\u00e2y)<\/li>\n
          2. Th\u00eam h\u1ec7 s\u1ed1 an to\u00e0n 25%<\/li>\n
          3. X\u00e1c minh \u0111\u1ecbnh m\u1ee9c ti\u1ebfp \u0111i\u1ec3m c\u1ee7a r\u01a1 le th\u1eddi gian c\u1ee7a b\u1ea1n v\u01b0\u1ee3t qu\u00e1 gi\u00e1 tr\u1ecb n\u00e0y<\/li>\n<\/ol>\n

            V\u00ed d\u1ee5<\/strong>: N\u1ebfu cu\u1ed9n d\u00e2y c\u00f4ng t\u1eafc t\u01a1 c\u1ee7a b\u1ea1n h\u00fat 50mA \u1edf 120V AC, th\u00ec c\u00e1c ti\u1ebfp \u0111i\u1ec3m r\u01a1 le th\u1eddi gian c\u1ee7a b\u1ea1n ph\u1ea3i \u0111\u01b0\u1ee3c \u0111\u1ecbnh m\u1ee9c \u00edt nh\u1ea5t 65mA (50mA \u00d7 1,25). H\u1ea7u h\u1ebft c\u00e1c r\u01a1 le th\u1eddi gian ti\u00eau chu\u1ea9n \u0111\u1ec1u c\u00f3 c\u00e1c ti\u1ebfp \u0111i\u1ec3m \u0111\u01b0\u1ee3c \u0111\u1ecbnh m\u1ee9c cho 5A tr\u1edf l\u00ean \u1edf 120\/240V AC, cung c\u1ea5p nhi\u1ec1u kho\u1ea3ng kh\u00f4ng\u2014nh\u01b0ng lu\u00f4n x\u00e1c minh<\/em>.<\/p>\n

            \u0110i\u1ec3m ch\u00ednh<\/strong>: L\u1ed7i \u0111\u1eb7c t\u1ea3 ph\u1ed5 bi\u1ebfn nh\u1ea5t l\u00e0 nh\u1ea7m l\u1eabn \u0111i\u1ec7n \u00e1p cu\u1ed9n d\u00e2y c\u1ee7a r\u01a1 le v\u1edbi \u0111\u1ecbnh m\u1ee9c ti\u1ebfp \u0111i\u1ec3m c\u1ee7a n\u00f3. \u0110\u00e2y l\u00e0 nh\u1eefng th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt \u0111\u1ed9c l\u1eadp. Cu\u1ed9n d\u00e2y r\u01a1 le c\u1ee7a b\u1ea1n c\u00f3 th\u1ec3 l\u00e0 24V DC, nh\u01b0ng c\u00e1c ti\u1ebfp \u0111i\u1ec3m c\u1ee7a n\u00f3 v\u1eabn c\u00f3 th\u1ec3 chuy\u1ec3n \u0111\u1ed5i t\u1ea3i 240V AC\u2014h\u00e3y ki\u1ec3m tra c\u1ea3 hai.<\/em><\/p><\/blockquote>\n

            C. Ph\u1ea1m Vi Th\u1eddi Gian<\/strong><\/p>\n

            \u0110\u1ea3m b\u1ea3o ph\u1ea1m vi th\u1eddi gian c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh c\u1ee7a r\u01a1 le bao g\u1ed3m c\u00e1c nhu c\u1ea7u \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n. Ph\u1ea1m vi ph\u1ed5 bi\u1ebfn:<\/p>\n

              \n
            • 0,1 \u0111\u1ebfn 10 gi\u00e2y (tr\u00ecnh t\u1ef1 nhanh)<\/li>\n
            • 1 \u0111\u1ebfn 60 gi\u00e2y (d\u00e0n d\u1ef1ng \u0111\u1ed9ng c\u01a1 chung)<\/li>\n
            • 1 \u0111\u1ebfn 999 gi\u00e2y (\u0111\u1ed9 tr\u1ec5 k\u00e9o d\u00e0i cho chu k\u1ef3 l\u00e0m m\u00e1t ho\u1eb7c th\u00f4ng gi\u00f3)<\/li>\n<\/ul>\n

              B\u01b0\u1edbc 3: \u0110i D\u00e2y M\u1ea1ch \u0110i\u1ec1u Khi\u1ec3n (C\u00e1c K\u1ebft N\u1ed1i Quan Tr\u1ecdng)<\/h3>\n

              B\u00e2y gi\u1edd ch\u00fang ta s\u1ebd \u0111i \u0111\u1ebfn ph\u1ea7n \u0111i d\u00e2y th\u1ef1c t\u1ebf. \u0110\u00e2y l\u00e0 n\u01a1i l\u00fd thuy\u1ebft g\u1eb7p th\u1ef1c h\u00e0nh v\u00e0 n\u01a1i k\u1ef9 thu\u1eadt ph\u00f9 h\u1ee3p ng\u0103n ng\u1eeba c\u00e1c l\u1ed7i trong t\u01b0\u01a1ng lai.<\/p>\n

              C\u00e1c Th\u00e0nh Ph\u1ea7n Y\u00eau C\u1ea7u<\/strong>:<\/p>\n

                \n
              • R\u01a1 le th\u1eddi gian (th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e1c minh t\u1eeb B\u01b0\u1edbc 2)<\/li>\n
              • Kh\u1edfi \u0111\u1ed9ng t\u1eeb (motor starter) v\u1edbi c\u00e1c \u0111\u1ea7u n\u1ed1i m\u1ea1ch \u0111i\u1ec1u khi\u1ec3n \u0111\u01b0\u1ee3c d\u00e1n nh\u00e3n<\/li>\n
              • Ngu\u1ed3n \u0111i\u1ec7n \u0111i\u1ec1u khi\u1ec3n (bi\u1ebfn \u00e1p ho\u1eb7c \u0111i\u1ec7n \u00e1p \u0111\u01b0\u1eddng d\u00e2y tr\u1ef1c ti\u1ebfp)<\/li>\n
              • N\u00fat nh\u1ea5n kh\u1edfi \u0111\u1ed9ng\/d\u1eebng (ho\u1eb7c c\u00f4ng t\u1eafc \u0111i\u1ec1u khi\u1ec3n)<\/li>\n
              • Ti\u1ebfp \u0111i\u1ec3m r\u01a1 le qu\u00e1 t\u1ea3i (th\u01b0\u1eddng \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p trong kh\u1edfi \u0111\u1ed9ng t\u1eeb)<\/li>\n
              • D\u00e2y d\u1eabn c\u00f3 k\u00edch th\u01b0\u1edbc theo \u0110i\u1ec1u 430 c\u1ee7a NEC cho m\u1ea1ch \u0111i\u1ec1u khi\u1ec3n (th\u01b0\u1eddng l\u00e0 14-18 AWG)<\/li>\n<\/ul>\n

                Tr\u00ecnh t\u1ef1 \u0111\u1ea5u d\u00e2y R\u01a1 le Th\u1eddi gian Tr\u1ec5 (On-Delay)<\/strong> (c\u1ea5u h\u00ecnh ph\u1ed5 bi\u1ebfn nh\u1ea5t):<\/p>\n

                  \n
                1. Thi\u1ebft l\u1eadp Ngu\u1ed3n \u0111i\u1ec7n \u0110i\u1ec1u khi\u1ec3n<\/strong>:\n
                    \n
                  • K\u1ebft n\u1ed1i D\u00e2y 1 (L1) c\u1ee7a ngu\u1ed3n \u0111i\u1ec7n \u00e1p \u0111i\u1ec1u khi\u1ec3n c\u1ee7a b\u1ea1n v\u1edbi m\u1ed9t b\u00ean c\u1ee7a n\u00fat nh\u1ea5n kh\u1edfi \u0111\u1ed9ng<\/li>\n
                  • \u0110\u00e2y l\u00e0 ch\u00e2n \u0111i\u1ec1u khi\u1ec3n \u201cn\u00f3ng\u201d c\u1ee7a b\u1ea1n<\/li>\n<\/ul>\n<\/li>\n
                  • \u0110\u1ea5u d\u00e2y N\u00fat Kh\u1edfi \u0111\u1ed9ng v\u00e0 Cu\u1ed9n d\u00e2y R\u01a1 le Th\u1eddi gian<\/strong>:\n
                      \n
                    • K\u1ebft n\u1ed1i \u0111\u1ea7u ra c\u1ee7a n\u00fat kh\u1edfi \u0111\u1ed9ng th\u01b0\u1eddng h\u1edf (NO) v\u1edbi m\u1ed9t \u0111\u1ea7u n\u1ed1i c\u1ee7a cu\u1ed9n d\u00e2y r\u01a1 le th\u1eddi gian (th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00e1n nh\u00e3n A1)<\/li>\n
                    • K\u1ebft n\u1ed1i \u0111\u1ea7u n\u1ed1i cu\u1ed9n d\u00e2y r\u01a1 le th\u1eddi gian c\u00f2n l\u1ea1i (th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00e1n nh\u00e3n A2) tr\u1edf l\u1ea1i D\u00e2y 2 (L2\/Trung t\u00ednh) c\u1ee7a \u0111i\u1ec7n \u00e1p \u0111i\u1ec1u khi\u1ec3n c\u1ee7a b\u1ea1n<\/li>\n
                    • Quan tr\u1ecdng: \u0110\u1ea5u d\u00e2y n\u00fat d\u1eebng (ti\u1ebfp \u0111i\u1ec3m NC) v\u00e0 ti\u1ebfp \u0111i\u1ec3m r\u01a1 le qu\u00e1 t\u1ea3i (NC) n\u1ed1i ti\u1ebfp tr\u00ean ch\u00e2n L1 tr\u01b0\u1edbc n\u00fat kh\u1edfi \u0111\u1ed9ng \u0111\u1ec3 t\u1ea1o th\u00e0nh m\u1ed9t chu\u1ed7i an to\u00e0n ho\u00e0n ch\u1ec9nh<\/li>\n<\/ul>\n<\/li>\n
                    • K\u1ebft n\u1ed1i Ti\u1ebfp \u0111i\u1ec3m \u0110\u1ea7u ra R\u01a1 le Th\u1eddi gian v\u1edbi Cu\u1ed9n d\u00e2y Kh\u1edfi \u0111\u1ed9ng t\u1eeb<\/strong>:\n
                        \n
                      • X\u00e1c \u0111\u1ecbnh c\u00e1c ti\u1ebfp \u0111i\u1ec3m \u0111\u1ea7u ra \u0111\u1ecbnh th\u1eddi c\u1ee7a r\u01a1 le th\u1eddi gian (th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00e1n nh\u00e3n l\u00e0 ti\u1ebfp \u0111i\u1ec3m NO: 15-18, 25-28, v.v.)<\/li>\n
                      • K\u1ebft n\u1ed1i m\u1ed9t b\u00ean c\u1ee7a c\u00e1c ti\u1ebfp \u0111i\u1ec3m NO \u0111\u1ecbnh th\u1eddi n\u00e0y v\u1edbi c\u00f9ng ch\u00e2n \u0111i\u1ec1u khi\u1ec3n L1<\/li>\n
                      • K\u1ebft n\u1ed1i ph\u00eda c\u00f2n l\u1ea1i c\u1ee7a c\u00e1c ti\u1ebfp \u0111i\u1ec3m NO \u0111\u1ecbnh th\u1eddi v\u1edbi m\u1ed9t \u0111\u1ea7u n\u1ed1i c\u1ee7a cu\u1ed9n d\u00e2y kh\u1edfi \u0111\u1ed9ng t\u1eeb (\u0111\u01b0\u1ee3c d\u00e1n nh\u00e3n A1 ho\u1eb7c t\u01b0\u01a1ng t\u1ef1)<\/li>\n
                      • K\u1ebft n\u1ed1i \u0111\u1ea7u n\u1ed1i cu\u1ed9n d\u00e2y kh\u1edfi \u0111\u1ed9ng t\u1eeb c\u00f2n l\u1ea1i (A2) tr\u1edf l\u1ea1i L2<\/li>\n
                      • \u0110\u00e2y l\u00e0 \u0111\u01b0\u1eddng d\u1eabn quan tr\u1ecdng<\/strong>: Khi r\u01a1 le th\u1eddi gian h\u1ebft th\u1eddi gian, n\u00f3 \u0111\u00f3ng c\u00e1c ti\u1ebfp \u0111i\u1ec3m NO c\u1ee7a n\u00f3, ho\u00e0n th\u00e0nh m\u1ea1ch \u0111\u1ec3 c\u1ea5p \u0111i\u1ec7n cho cu\u1ed9n d\u00e2y kh\u1edfi \u0111\u1ed9ng t\u1eeb<\/li>\n<\/ul>\n<\/li>\n
                      • Th\u00eam M\u1ea1ch Duy tr\u00ec<\/strong> (cho ho\u1ea1t \u0111\u1ed9ng duy tr\u00ec):\n
                          \n
                        • K\u1ebft n\u1ed1i m\u1ed9t ti\u1ebfp \u0111i\u1ec3m NO ph\u1ee5 tr\u1ee3 t\u1eeb kh\u1edfi \u0111\u1ed9ng t\u1eeb (\u0111\u01b0\u1ee3c d\u00e1n nh\u00e3n 13-14 ho\u1eb7c t\u01b0\u01a1ng t\u1ef1) song song v\u1edbi n\u00fat kh\u1edfi \u0111\u1ed9ng<\/li>\n
                        • \u0110i\u1ec1u n\u00e0y t\u1ea1o ra m\u1ed9t m\u1ea1ch \u201ct\u1ef1 gi\u1eef\u201d \u0111\u1ec3 \u0111\u1ed9ng c\u01a1 ti\u1ebfp t\u1ee5c ch\u1ea1y sau khi b\u1ea1n nh\u1ea3 n\u00fat kh\u1edfi \u0111\u1ed9ng<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n

                          \u0110i\u1ec3m ch\u00ednh<\/strong>: R\u01a1 le th\u1eddi gian n\u1eb1m gi\u1eefa n\u00fat kh\u1edfi \u0111\u1ed9ng v\u00e0 cu\u1ed9n d\u00e2y kh\u1edfi \u0111\u1ed9ng t\u1eeb c\u1ee7a b\u1ea1n\u2014n\u00f3 l\u00e0 m\u1ed9t ng\u01b0\u1eddi g\u00e1c c\u1ed5ng trong logic \u0111i\u1ec1u khi\u1ec3n, kh\u00f4ng ph\u1ea3i m\u1ea1ch \u0111i\u1ec7n ch\u00ednh. Kh\u00f4ng bao gi\u1edd \u0111\u1ea5u d\u00e2y r\u01a1 le th\u1eddi gian n\u1ed1i ti\u1ebfp v\u1edbi d\u00e2y d\u1eabn \u0111i\u1ec7n ch\u00ednh c\u1ee7a \u0111\u1ed9ng c\u01a1.<\/em><\/p><\/blockquote>\n

                          Chi ti\u1ebft L\u1eafp \u0111\u1eb7t Quan tr\u1ecdng<\/h3>\n
                            \n
                          • S\u1eed d\u1ee5ng \u0111\u1ea7u cos (ferrule) tr\u00ean d\u00e2y nhi\u1ec1u s\u1ee3i \u0111\u1ec3 ch\u1ed1ng rung<\/li>\n
                          • Si\u1ebft ch\u1eb7t c\u00e1c v\u00edt \u0111\u1ea7u cu\u1ed1i theo th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t (th\u01b0\u1eddng l\u00e0 7-9 in-lbs cho c\u00e1c \u0111\u1ea7u cu\u1ed1i \u0111i\u1ec1u khi\u1ec3n)<\/li>\n
                          • D\u00e1n nh\u00e3n t\u1ea5t c\u1ea3 c\u00e1c d\u00e2y b\u1eb1ng d\u1ea5u d\u00e2y (wire marker) x\u00e1c \u0111\u1ecbnh ngu\u1ed3n v\u00e0 \u0111\u00edch<\/li>\n
                          • Gi\u1eef cho h\u1ec7 th\u1ed1ng d\u00e2y \u0111i\u1ec7n m\u1ea1ch \u0111i\u1ec1u khi\u1ec3n t\u00e1ch bi\u1ec7t v\u1edbi c\u00e1p \u0111i\u1ec7n \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n \u00e1p cao \u0111\u1ec3 gi\u1ea3m nhi\u1ec5u \u0111i\u1ec7n<\/li>\n<\/ul>\n

                            B\u01b0\u1edbc 4: \u0110\u1eb7t Th\u1eddi gian v\u00e0 Ki\u1ec3m tra Tr\u00ecnh t\u1ef1<\/h3>\n

                            Sau khi ho\u00e0n th\u00e0nh vi\u1ec7c \u0111\u1ea5u d\u00e2y, b\u1ea1n ph\u1ea3i \u0111\u1eb7t v\u00e0 x\u00e1c minh \u0111\u00fang ch\u1ee9c n\u0103ng th\u1eddi gian:<\/p>\n

                            \u0110i\u1ec1u ch\u1ec9nh Th\u1eddi gian<\/strong>:<\/p>\n

                              \n
                            • X\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed m\u1eb7t s\u1ed1 \u0111i\u1ec1u ch\u1ec9nh th\u1eddi gian ho\u1eb7c c\u00e0i \u0111\u1eb7t k\u1ef9 thu\u1eadt s\u1ed1 (tham kh\u1ea3o h\u01b0\u1edbng d\u1eabn s\u1eed d\u1ee5ng r\u01a1 le cho ki\u1ec3u m\u00e1y c\u1ee5 th\u1ec3 c\u1ee7a b\u1ea1n)<\/li>\n
                            • \u0110\u1ed1i v\u1edbi tr\u00ecnh t\u1ef1 kh\u1edfi \u0111\u1ed9ng ban \u0111\u1ea7u, h\u00e3y b\u1eaft \u0111\u1ea7u v\u1edbi \u0111\u1ed9 tr\u1ec5 d\u00e0i h\u01a1n (10-15 gi\u00e2y gi\u1eefa c\u00e1c \u0111\u1ed9ng c\u01a1)<\/li>\n
                            • B\u1ea1n c\u00f3 th\u1ec3 gi\u1ea3m \u0111\u1ed9 tr\u1ec5 sau khi quan s\u00e1t h\u00e0nh vi d\u00f2ng kh\u1edfi \u0111\u1ed9ng th\u1ef1c t\u1ebf<\/li>\n<\/ul>\n

                              Giao th\u1ee9c Ki\u1ec3m tra<\/strong> (th\u1ef1c hi\u1ec7n v\u1edbi \u0111\u1ed9ng c\u01a1 \u0111\u00e3 ng\u1eaft k\u1ebft n\u1ed1i ho\u1eb7c \u1edf ch\u1ebf \u0111\u1ed9 ki\u1ec3m tra):<\/p>\n

                                \n
                              1. Ki\u1ec3m tra C\u1ea5p \u0111i\u1ec7n cho Cu\u1ed9n d\u00e2y<\/strong>: Nh\u1ea5n n\u00fat kh\u1edfi \u0111\u1ed9ng. B\u1ea1n s\u1ebd nghe\/th\u1ea5y r\u01a1 le th\u1eddi gian \u0111\u01b0\u1ee3c c\u1ea5p \u0111i\u1ec7n (\u0111\u00e8n LED ho\u1eb7c ti\u1ebfng click c\u00f3 th\u1ec3 nghe \u0111\u01b0\u1ee3c)<\/li>\n
                              2. X\u00e1c minh Th\u1eddi gian<\/strong>: S\u1eed d\u1ee5ng \u0111\u1ed3ng h\u1ed3 b\u1ea5m gi\u1edd \u0111\u1ec3 x\u00e1c minh \u0111\u1ed9 tr\u1ec5 kh\u1edbp v\u1edbi c\u00e0i \u0111\u1eb7t c\u1ee7a b\u1ea1n. Kh\u1edfi \u0111\u1ed9ng t\u1eeb ch\u1ec9 \u0111\u01b0\u1ee3c c\u1ea5p \u0111i\u1ec7n sau th\u1eddi gian \u0111\u1eb7t tr\u01b0\u1edbc<\/li>\n
                              3. Ki\u1ec3m tra Ch\u1ee9c n\u0103ng D\u1eebng<\/strong>: Nh\u1ea5n n\u00fat d\u1eebng. C\u1ea3 r\u01a1 le th\u1eddi gian v\u00e0 kh\u1edfi \u0111\u1ed9ng t\u1eeb s\u1ebd m\u1ea5t \u0111i\u1ec7n ngay l\u1eadp t\u1ee9c (\u0111\u1ed1i v\u1edbi r\u01a1 le tr\u1ec5)<\/li>\n
                              4. Ki\u1ec3m tra M\u1ea1ch Duy tr\u00ec<\/strong>: Sau khi kh\u1edfi \u0111\u1ed9ng \u0111\u1ecbnh th\u1eddi, nh\u1ea3 n\u00fat kh\u1edfi \u0111\u1ed9ng. \u0110\u1ed9ng c\u01a1 s\u1ebd ti\u1ebfp t\u1ee5c ch\u1ea1y th\u00f4ng qua ti\u1ebfp \u0111i\u1ec3m ph\u1ee5 tr\u1ee3 t\u1ef1 gi\u1eef<\/li>\n<\/ol>\n

                                M\u1eb9o chuy\u00ean nghi\u1ec7p<\/strong>: Trong c\u00e1c tr\u00ecnh t\u1ef1 nhi\u1ec1u \u0111\u1ed9ng c\u01a1, h\u00e3y \u0111\u1eb7t \u0111\u1ed9 tr\u1ec5 so le (\u0110\u1ed9ng c\u01a1 1: 0 gi\u00e2y, \u0110\u1ed9ng c\u01a1 2: 8 gi\u00e2y, \u0110\u1ed9ng c\u01a1 3: 16 gi\u00e2y). \u0110i\u1ec1u n\u00e0y t\u1ea1o ra m\u1ed9t \u201ckh\u1edfi \u0111\u1ed9ng l\u0103n\u201d gi\u00fap gi\u1ea3m \u0111\u00e1ng k\u1ec3 nhu c\u1ea7u c\u1ef1c \u0111\u1ea1i.<\/em><\/p><\/blockquote>\n

                                \u1ee8ng d\u1ee5ng Th\u1ef1c t\u1ebf: Gi\u1ea3i ph\u00e1p Tr\u00ecnh t\u1ef1 Ba B\u01a1m<\/h2>\n

                                H\u00e3y xem l\u1ea1i k\u1ecbch b\u1ea3n m\u1edf \u0111\u1ea7u c\u1ee7a ch\u00fang ta v\u1edbi c\u00e1c m\u00e1y b\u01a1m n\u01b0\u1edbc b\u1ecb ng\u1eaft. \u0110\u00e2y l\u00e0 c\u00e1ch r\u01a1 le th\u1eddi gian gi\u1ea3i quy\u1ebft ch\u00ednh x\u00e1c v\u1ea5n \u0111\u1ec1 n\u00e0y:<\/p>\n

                                C\u1ea5u h\u00ecnh<\/strong>:<\/p>\n

                                  \n
                                • Ba m\u00e1y b\u01a1m 50-HP, m\u1ed7i m\u00e1y c\u00f3 m\u1ed9t kh\u1edfi \u0111\u1ed9ng t\u1eeb ri\u00eang<\/li>\n
                                • N\u00fat kh\u1edfi \u0111\u1ed9ng \u0111\u01a1n kh\u1edfi t\u1ea1o tr\u00ecnh t\u1ef1 \u0111\u1ea7y \u0111\u1ee7<\/li>\n
                                • B\u01a1m 1: Kh\u1edfi \u0111\u1ed9ng tr\u1ef1c ti\u1ebfp (kh\u00f4ng tr\u1ec5)<\/li>\n
                                • B\u01a1m 2: R\u01a1 le tr\u1ec5 \u0111\u01b0\u1ee3c \u0111\u1eb7t th\u00e0nh 10 gi\u00e2y<\/li>\n
                                • B\u01a1m 3: R\u01a1 le tr\u1ec5 \u0111\u01b0\u1ee3c \u0111\u1eb7t th\u00e0nh 20 gi\u00e2y<\/li>\n<\/ul>\n

                                  Qu\u1ea3<\/strong>: Thay v\u00ec d\u00f2ng kh\u1edfi \u0111\u1ed9ng \u0111\u1ed3ng th\u1eddi 450A (3 \u0111\u1ed9ng c\u01a1 \u00d7 150A m\u1ed7i \u0111\u1ed9ng c\u01a1), b\u1ea1n nh\u1eadn \u0111\u01b0\u1ee3c ba \u0111\u1ec9nh 150A ri\u00eang bi\u1ec7t tr\u1ea3i \u0111\u1ec1u 10 gi\u00e2y. H\u1ec7 th\u1ed1ng \u0111i\u1ec7n c\u1ee7a b\u1ea1n x\u1eed l\u00fd vi\u1ec7c n\u00e0y m\u1ed9t c\u00e1ch d\u1ec5 d\u00e0ng, \u0111i\u1ec7n \u00e1p v\u1eabn \u1ed5n \u0111\u1ecbnh v\u00e0 thi\u1ebft b\u1ecb h\u1ea1 ngu\u1ed3n ti\u1ebfp t\u1ee5c ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng.<\/p>\n

                                  L\u1ee3i \u00edch chi ph\u00ed<\/strong>: Ba r\u01a1 le th\u1eddi gian ($150 t\u1ed5ng c\u1ed9ng) so v\u1edbi gi\u1ea3i ph\u00e1p d\u1ef1a tr\u00ean PLC ($2,000+) ho\u1eb7c ch\u1ea5p nh\u1eadn c\u00e1c chuy\u1ebfn \u0111i g\u00e2y phi\u1ec1n to\u00e1i li\u00ean t\u1ee5c v\u00e0 thi\u1ec7t h\u1ea1i ti\u1ec1m \u1ea9n cho thi\u1ebft b\u1ecb ($$$$).<\/p>\n

                                  T\u1ea1i sao R\u01a1 le Th\u1eddi gian l\u00e0 Gi\u1ea3i ph\u00e1p \u0110i\u1ec1u khi\u1ec3n Hi\u1ec7u qu\u1ea3 Chi ph\u00ed Nh\u1ea5t c\u1ee7a B\u1ea1n<\/h2>\n\n\n\n\n\n\n\n\n
                                  N\u0103ng<\/th>\nGi\u00e1 tr\u1ecb cho B\u1ea1n<\/th>\n<\/tr>\n
                                  C\u00e0i \u0111\u1eb7t \u0110\u01a1n gi\u1ea3n<\/strong><\/td>\nG\u1eafn tr\u00ean ray DIN, h\u1ec7 th\u1ed1ng d\u00e2y \u0111i\u1ec7n m\u1ea1ch \u0111i\u1ec1u khi\u1ec3n ti\u00eau chu\u1ea9n\u2014kh\u00f4ng c\u1ea7n l\u1eadp tr\u00ecnh<\/td>\n<\/tr>\n
                                  Th\u1eddi gian c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh<\/strong><\/td>\nC\u00e0i \u0111\u1eb7t b\u1eb1ng n\u00fam xoay ho\u1eb7c k\u1ef9 thu\u1eadt s\u1ed1 cho ph\u00e9p t\u1ed1i \u01b0u h\u00f3a t\u1ea1i ch\u1ed7 m\u00e0 kh\u00f4ng c\u1ea7n thay \u0111\u1ed5i ph\u1ea7n c\u1ee9ng<\/td>\n<\/tr>\n
                                  K\u00edch th\u01b0\u1edbc nh\u1ecf g\u1ecdn<\/strong><\/td>\nPh\u00f9 h\u1ee3p v\u1edbi c\u00e1c t\u1ee7 \u0111i\u1ec1u khi\u1ec3n hi\u1ec7n c\u00f3 m\u00e0 kh\u00f4ng c\u1ea7n s\u1eeda \u0111\u1ed5i l\u1edbn<\/td>\n<\/tr>\n
                                  \u0110\u1ed9 tin c\u1eady cao<\/strong><\/td>\nThi\u1ebft k\u1ebf b\u00e1n d\u1eabn ho\u1eb7c c\u01a1 \u0111i\u1ec7n v\u1edbi h\u01a1n 100.000 chu k\u1ef3 ho\u1ea1t \u0111\u1ed9ng<\/td>\n<\/tr>\n
                                  Chi ph\u00ed th\u1ea5p<\/strong><\/td>\n$50-150 m\u1ed7i r\u01a1 le so v\u1edbi h\u00e0ng ngh\u00ecn cho c\u00e1c gi\u1ea3i ph\u00e1p d\u1ef1a tr\u00ean PLC<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                                  K\u1ebft lu\u1eadn<\/strong>: R\u01a1 le th\u1eddi gian cung c\u1ea5p cho b\u1ea1n tr\u00ecnh t\u1ef1 kh\u1edfi \u0111\u1ed9ng \u0111\u1ed9ng c\u01a1 ch\u00ednh x\u00e1c v\u1edbi chi ph\u00ed v\u00e0 \u0111\u1ed9 ph\u1ee9c t\u1ea1p th\u1ea5p h\u01a1n nhi\u1ec1u so v\u1edbi b\u1ed9 \u0111i\u1ec1u khi\u1ec3n l\u1eadp tr\u00ecnh. \u0110\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng y\u00eau c\u1ea7u \u0111\u1ed9 tr\u1ec5 ho\u1eb7c ph\u00e2n \u0111o\u1ea1n \u0111\u01a1n gi\u1ea3n m\u00e0 kh\u00f4ng c\u1ea7n logic ph\u1ee9c t\u1ea1p, ch\u00fang l\u00e0 gi\u1ea3i ph\u00e1p \u0111\u00e1ng tin c\u1eady v\u00e0 kinh t\u1ebf nh\u1ea5t hi\u1ec7n c\u00f3.<\/p>\n

                                  Nh\u1eefng sai l\u1ea7m th\u01b0\u1eddng g\u1eb7p c\u1ea7n tr\u00e1nh khi \u0111\u1ea5u d\u00e2y<\/h2>\n

                                  Ngay c\u1ea3 nh\u1eefng th\u1ee3 \u0111i\u1ec7n c\u00f3 kinh nghi\u1ec7m c\u0169ng m\u1eafc ph\u1ea3i nh\u1eefng l\u1ed7i n\u00e0y:<\/p>\n

                                    \n
                                  1. \u0110\u1ea5u d\u00e2y r\u01a1 le th\u1eddi gian v\u00e0o m\u1ea1ch ngu\u1ed3n \u0111\u1ed9ng c\u01a1<\/strong>: R\u01a1 le th\u1eddi gian \u0111i\u1ec1u khi\u1ec3n cu\u1ed9n d\u00e2y kh\u1edfi \u0111\u1ed9ng (d\u00f2ng \u0111i\u1ec7n th\u1ea5p), kh\u00f4ng bao gi\u1edd \u0111i\u1ec1u khi\u1ec3n ngu\u1ed3n \u0111\u1ed9ng c\u01a1 (d\u00f2ng \u0111i\u1ec7n cao)<\/li>\n
                                  2. \u0110i\u1ec7n \u00e1p cu\u1ed9n d\u00e2y kh\u00f4ng ph\u00f9 h\u1ee3p<\/strong>: Cu\u1ed9n d\u00e2y r\u01a1 le 24V s\u1ebd kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng \u0111\u00e1ng tin c\u1eady \u1edf \u0111i\u1ec7n \u00e1p 120V v\u00e0 ng\u01b0\u1ee3c l\u1ea1i<\/li>\n
                                  3. K\u00edch th\u01b0\u1edbc d\u00e2y kh\u00f4ng ph\u00f9 h\u1ee3p<\/strong>: M\u1ea1ch \u0111i\u1ec1u khi\u1ec3n v\u1eabn y\u00eau c\u1ea7u k\u00edch th\u01b0\u1edbc AWG ph\u00f9 h\u1ee3p theo ti\u00eau chu\u1ea9n NEC<\/li>\n
                                  4. Qu\u00ean m\u1ea1ch gi\u1eef<\/strong>: N\u1ebfu kh\u00f4ng c\u00f3 ti\u1ebfp \u0111i\u1ec3m ph\u1ee5 t\u1ef1 gi\u1eef, \u0111\u1ed9ng c\u01a1 s\u1ebd d\u1eebng khi b\u1ea1n nh\u1ea3 n\u00fat kh\u1edfi \u0111\u1ed9ng<\/li>\n
                                  5. B\u1ecf qua ki\u1ec3m tra th\u1eddi gian<\/strong>: Lu\u00f4n x\u00e1c minh th\u1eddi gian th\u1ef1c t\u1ebf kh\u1edbp v\u1edbi c\u00e0i \u0111\u1eb7t c\u1ee7a b\u1ea1n tr\u01b0\u1edbc khi v\u1eadn h\u00e0nh<\/li>\n<\/ol>\n

                                    S\u1eb5n s\u00e0ng lo\u1ea1i b\u1ecf c\u00e1c v\u1ea5n \u0111\u1ec1 kh\u1edfi \u0111\u1ed9ng?<\/h2>\n

                                    L\u1ef1a ch\u1ecdn v\u00e0 \u0111\u1ea5u d\u00e2y r\u01a1 le th\u1eddi gian ph\u00f9 h\u1ee3p bi\u1ebfn qu\u00e1 tr\u00ecnh kh\u1edfi \u0111\u1ed9ng \u0111\u1ed9ng c\u01a1 h\u1ed7n lo\u1ea1n th\u00e0nh c\u00e1c tr\u00ecnh t\u1ef1 ph\u1ed1i h\u1ee3p, \u0111\u00e1ng tin c\u1eady. Cho d\u00f9 b\u1ea1n \u0111ang ph\u00e2n \u0111o\u1ea1n nhi\u1ec1u m\u00e1y b\u01a1m, b\u1ea3o v\u1ec7 thi\u1ebft b\u1ecb b\u1eb1ng c\u00e1ch kh\u1edfi \u0111\u1ed9ng tr\u1ec5 hay th\u1ef1c hi\u1ec7n kh\u00f3a li\u00ean \u0111\u1ed9ng an to\u00e0n, r\u01a1 le th\u1eddi gian cung c\u1ea5p tr\u00ed th\u00f4ng minh v\u1ec1 th\u1eddi gian m\u00e0 b\u1ed9 kh\u1edfi \u0111\u1ed9ng \u0111\u1ed9ng c\u01a1 c\u1ee7a b\u1ea1n c\u1ea7n.<\/p>\n

                                    C\u00e1c b\u01b0\u1edbc ti\u1ebfp theo<\/strong>:<\/p>\n

                                      \n
                                    • Xem l\u1ea1i s\u01a1 \u0111\u1ed3 \u0111i\u1ec1u khi\u1ec3n b\u1ed9 kh\u1edfi \u0111\u1ed9ng \u0111\u1ed9ng c\u01a1 c\u1ee7a b\u1ea1n \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh c\u00e1c c\u01a1 h\u1ed9i v\u1ec1 th\u1eddi gian<\/li>\n
                                    • Ch\u1ecdn r\u01a1 le th\u1eddi gian ph\u00f9 h\u1ee3p v\u1edbi \u0111i\u1ec7n \u00e1p \u0111i\u1ec1u khi\u1ec3n v\u00e0 y\u00eau c\u1ea7u v\u1ec1 ti\u1ebfp \u0111i\u1ec3m c\u1ee7a b\u1ea1n<\/li>\n
                                    • L\u00e0m theo c\u00e1c b\u01b0\u1edbc \u0111\u1ea5u d\u00e2y \u1edf tr\u00ean \u0111\u1ec3 v\u1eadn h\u00e0nh \u0111\u00e1ng tin c\u1eady, l\u00e2u d\u00e0i<\/li>\n<\/ul>\n

                                      C\u1ea7n h\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt?<\/strong> C\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t l\u1edbn nh\u01b0 Eaton, ABB, Schneider Electric v\u00e0 Phoenix Contact cung c\u1ea5p c\u00e1c d\u00f2ng s\u1ea3n ph\u1ea9m r\u01a1 le th\u1eddi gian to\u00e0n di\u1ec7n v\u1edbi s\u01a1 \u0111\u1ed3 \u0111\u1ea5u d\u00e2y chi ti\u1ebft v\u00e0 h\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt \u1ee9ng d\u1ee5ng. Lu\u00f4n tham kh\u1ea3o b\u1ea3ng d\u1eef li\u1ec7u c\u1ee5 th\u1ec3 cho ki\u1ec3u r\u01a1 le b\u1ea1n \u0111\u00e3 ch\u1ecdn \u0111\u1ec3 x\u00e1c minh k\u00fd hi\u1ec7u v\u00e0 \u0111\u1ecbnh m\u1ee9c c\u1ee7a thi\u1ebft b\u1ecb \u0111\u1ea7u cu\u1ed1i.<\/p>\n

                                      H\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n \u0111\u1ed9ng c\u01a1 c\u1ee7a b\u1ea1n ch\u1ec9 \u0111\u00e1ng tin c\u1eady nh\u01b0 m\u1eaft x\u00edch y\u1ebfu nh\u1ea5t c\u1ee7a n\u00f3\u2014h\u00e3y \u0111\u1ea3m b\u1ea3o r\u1eb1ng \u0111i\u1ec1u khi\u1ec3n th\u1eddi gian kh\u00f4ng ph\u1ea3i l\u00e0 m\u1eaft x\u00edch y\u1ebfu \u0111\u00f3.<\/strong><\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

                                      The 3 AM Phone Call Every Plant Engineer Dreads Picture this: Your facility’s main water pumps just tripped\u2014again. It’s 3 AM, production is down, and your maintenance team is scrambling. After an hour of troubleshooting, you discover the culprit: three 50-HP motors trying to start simultaneously, creating a massive inrush current that’s overloading your electrical […]<\/p>\n","protected":false},"author":1,"featured_media":19341,"comment_status":"closed","ping_status":"closed","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-19333","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\/19333","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=19333"}],"version-history":[{"count":7,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/posts\/19333\/revisions"}],"predecessor-version":[{"id":19342,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/posts\/19333\/revisions\/19342"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/media\/19341"}],"wp:attachment":[{"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/media?parent=19333"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/categories?post=19333"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/tags?post=19333"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}