{"id":5165,"date":"2022-09-16T14:02:27","date_gmt":"2022-09-16T07:02:27","guid":{"rendered":"http:\/\/mese.vn\/?p=5165"},"modified":"2022-09-19T10:11:25","modified_gmt":"2022-09-19T03:11:25","slug":"af0500-role-bao-ve-ho-quang-theo-vung","status":"publish","type":"post","link":"https:\/\/tofu.isoinaction.com\/mesevn\/vi\/af0500-role-bao-ve-ho-quang-theo-vung.html","title":{"rendered":"AF0500 – Role b\u1ea3o v\u1ec7 h\u1ed3 quang theo v\u00f9ng"},"content":{"rendered":"

H\u1ed3 quang \u0111i\u1ec7n l\u00e0 m\u1ed9t hi\u1ec7n t\u01b0\u1ee3ng th\u01b0\u1eddng th\u1ea5y xu\u1ea5t hi\u1ec7n trong l\u01b0\u1edbi \u0111i\u1ec7n, t\u00e1c h\u1ea1i c\u1ee7a n\u00f3 g\u00e2y th\u01b0\u01a1ng t\u00edch cho con ng\u01b0\u1eddi, g\u00e2y h\u01b0 h\u1ecfng n\u1eb7ng cho thi\u1ebft b\u1ecb v\u00e0 g\u00e2y s\u1ef1 c\u1ed1 l\u01b0\u1edbi \u0111i\u1ec7n.<\/p>\n

H\u1ed3 quang \u0111i\u1ec7n v\u00e0 t\u00e1c h\u1ea1i c\u1ee7a n\u00f3:\u00a0Link<\/a><\/strong><\/span><\/p>\n

Hi\u1ec7n nay trong t\u1ee7 \u0111i\u1ec7n trung \u00e1p v\u00e0 h\u1ea1 \u00e1p n\u00f3i chung m\u1edbi ch\u1ec9 \u0111\u01b0\u1ee3c trang b\u1ecb b\u1ea3o v\u1ec7 qu\u00e1 d\u00f2ng ph\u1ea1m vi t\u1eeb bi\u1ebfn d\u00f2ng \u0111i\u1ec7n tr\u1edf ra, c\u00f2n ph\u1ea7n t\u1eeb bi\u1ebfn d\u00f2ng \u0111i\u1ec7n \u0111\u1ebfn m\u00e1y c\u1eaft v\u00e0 c\u1ea3 thanh c\u00e1i l\u1ea1i n\u1eb1m ngo\u00e0i v\u00f9ng b\u1ea3o v\u1ec7 c\u1ee7a ng\u0103n l\u1ed9, n\u1ebfu c\u00f3 s\u1ef1 c\u1ed1 trong \u201cv\u00f9ng ch\u1ebft\u201d n\u00e0y th\u00ec b\u1ea3o v\u1ec7 ng\u0103n l\u1ed9 n\u00e0y s\u1ebd kh\u00f4ng t\u00e1c \u0111\u1ed9ng, khi \u0111\u00f3 ph\u1ea3i tr\u00f4ng ch\u1edd v\u00e0o b\u1ea3o v\u1ec7 c\u1ea5p tr\u00ean (upstream) t\u00e1c \u0111\u1ed9ng. Tuy nhi\u00ean \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh ch\u1ecdn l\u1ecdc c\u1ee7a b\u1ea3o v\u1ec7, th\u1eddi gian t\u00e1c \u0111\u1ed9ng c\u1ee7a b\u1ea3o v\u1ec7 c\u1ea5p tr\u00ean th\u01b0\u1eddng tr\u1ec5 h\u01a1n 500ms, khi \u0111\u00f3 h\u1ed3 quang \u0111i\u1ec7n \u0111\u00e3 ph\u00e1t tri\u1ec3n r\u1ed9ng v\u00e0 g\u00e2y h\u1eadu qu\u1ea3 nghi\u00eam tr\u1ecdng.<\/p>\n

Trong thi\u1ebft k\u1ebf t\u1ee7 \u0111i\u1ec7n hi\u1ec7n nay, th\u00f4ng th\u01b0\u1eddng thanh c\u00e1i ch\u00ednh v\u00e0 c\u00e1c thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn \u0111\u1ee7 s\u1ee9c ch\u1ecbu \u0111\u1ef1ng c\u00e1c l\u1ef1c \u0111i\u1ec7n \u0111\u1ed9ng g\u00e2y ra b\u1edfi d\u00f2ng ng\u1eafn m\u1ea1ch l\u1edbn nh\u1ea5t khi t\u00ednh to\u00e1n trong v\u00f2ng kho\u1ea3ng 1s. Th\u1eddi gian \u0111\u00f3 l\u00e0 \u0111\u1ee7 l\u1edbn \u0111\u1ec3 b\u1ea3o v\u1ec7 c\u1ea5p tr\u00ean (upstream) t\u00e1c \u0111\u1ed9ng n\u1ebfu kh\u00f4ng may s\u1ef1 c\u1ed1 x\u1ea3y ra trong \u201cv\u00f9ng ch\u1ebft\u201d c\u1ee7a c\u00e1c ng\u0103n l\u1ed9.<\/p>\n

\u0110i\u1ec1u kh\u00f4ng may \u0111\u1ed1i v\u1edbi s\u1ef1 c\u1ed1 ph\u00f3ng h\u1ed3 quang l\u00e0 khi m\u1edbi b\u1eaft \u0111\u1ea7u h\u00ecnh th\u00e0nh ph\u00f3ng tia l\u1eeda \u0111i\u1ec7n (do c\u00e1ch \u0111i\u1ec7n l\u00e3o h\u00f3a ho\u1eb7c kho\u1ea3ng c\u00e1ch c\u00e1ch \u0111i\u1ec7n kh\u00f4ng \u0111\u1ea3m b\u1ea3o, m\u00f4i tr\u01b0\u1eddng b\u1ee5i b\u1ea9n\u2026) th\u00ec d\u00f2ng \u0111i\u1ec7n ph\u00f3ng trong kh\u00f4ng kh\u00ed khi \u0111\u00f3 kh\u00e1 b\u00e9. Ch\u1ec9 \u0111\u1ebfn khi l\u1edbp kh\u00f4ng kh\u00ed b\u1ecb \u00f4 xy h\u00f3a v\u00e0 d\u00f2ng \u0111i\u1ec7n ng\u1eafn m\u1ea1ch ch\u1ea3y qua h\u1ed3 quang l\u00fac n\u00e0y m\u1edbi th\u1ef1c s\u1ef1 l\u1edbn. D\u00f2ng n\u00e0y c\u00f3 th\u1ec3 kh\u00f4ng ph\u1ea3i l\u00e0 l\u1edbn so v\u1edbi kh\u1ea3 n\u0103ng ch\u1ecbu \u0111\u1ef1ng d\u00f2ng ng\u1eafn m\u1ea1ch l\u1edbn nh\u1ea5t c\u1ee7a thanh c\u00e1i v\u00e0 thi\u1ebft b\u1ecb. Tuy nhi\u00ean, nhi\u1ec7t \u0111\u1ed9 ph\u00e1t sinh trong h\u1ed3 quang r\u1ea5t l\u1edbn v\u00e0 t\u0103ng nhanh l\u00e0 nguy\u00ean nh\u00e2n l\u00e0m c\u00e1c b\u1ed9 ph\u1eadn c\u1ee7a t\u1ee7 \u0111i\u1ec7n ch\u00e1y th\u00e0nh tro ch\u1ec9 trong th\u1eddi gian v\u00e0i miligi\u00e2y. \u00c1p su\u1ea5t t\u0103ng nhanh do gi\u1ea3i tho\u00e1t n\u0103ng l\u01b0\u1ee3ng s\u1ebd l\u00e0m m\u1edf tung c\u00e1c v\u00e1ch ng\u0103n c\u1ee7a t\u1ee7 \u0111i\u1ec7n.<\/p>\n

Th\u1eddi gian khi x\u1ea3y ra s\u1ef1 c\u1ed1 h\u1ed3 quang l\u00e0 r\u1ea5t ng\u1eafn, ch\u01b0a \u0111\u1ebfn 10ms v\u00e0 l\u00e0 kh\u00f4ng \u0111\u1ee7 cho b\u1ea5t c\u1ee9 thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 n\u00e0o c\u00f3 th\u1ec3 t\u00e1c \u0111\u1ed9ng k\u1ecbp.<\/p>\n

V\u00ec v\u1eady, c\u1ea7n ph\u1ea3i c\u00f3 bi\u1ec7n ph\u00e1p h\u1ea1n ch\u1ebf c\u0169ng nh\u01b0 x\u1eed l\u00fd h\u1ed3 quang. Ngo\u00e0i c\u00e1c bi\u1ec7n ph\u00e1p truy\u1ec1n th\u1ed1ng, vi\u1ec7c \u1ee9ng d\u1ee5ng th\u00eam c\u00f4ng ngh\u1ec7 b\u1ea3o v\u1ec7 m\u1edbi nh\u01b0 s\u1eed d\u1ee5ng role b\u1ea3o v\u1ec7 h\u1ed3 quang,.. c\u0169ng n\u00ean \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng.\u00a0\u00a0C\u00e1c r\u01a1 le ph\u00e1t hi\u1ec7n h\u1ed3 quang \u0111\u01b0\u1ee3c l\u1eafp trong c\u00e1c t\u1ee7 \u0111i\u1ec7n ng\u00e0y nay th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ph\u00e1t hi\u1ec7n s\u1edbm (khi m\u1edbi b\u1eaft \u0111\u1ea7u ph\u00e1t tia l\u1eeda \u0111i\u1ec7n \u0111\u1ea7u ti\u00ean).<\/p>\n

LittelFuse., Inc l\u00e0 m\u1ed9t c\u00f4ng ty s\u1ea3n xu\u1ea5t \u0111i\u1ec7n t\u1eed c\u1ee7a M\u1ef9 v\u00e0 c\u00f3 tr\u1ee5 s\u1edf ch\u00ednh t\u1ea1i Chicago, lllinois. C\u00f4ng ty ch\u1ee7 y\u1ebfu s\u1ea3n xu\u1ea5t c\u00e1c s\u1ea3n ph\u1ea9m b\u1ea3o v\u1ec7 m\u1ea1ch nh\u01b0ng c\u0169ng s\u1ea3n xu\u1ea5t nhi\u1ec1u lo\u1ea1i c\u00f4ng t\u1eafc \u0111i\u1ec7n t\u1eed v\u00e0 c\u1ea3m bi\u1ebfn oto. LittelFuse \u0111\u01b0\u1ee3c th\u00e0nh l\u1eadp v\u00e0o n\u0103m 1927.<\/p>\n

LittelFuse c\u00f3 c\u00e1c d\u00f2ng role b\u1ea3o v\u1ec7 h\u1ed3 quang kh\u00e1c nhau nh\u01b0 AF0100, AF0500 v\u00e0 PGR-8800.<\/p>\n

Nguy\u00ean t\u1eafc ho\u1ea1t \u0111\u1ed9ng chung c\u1ee7a role b\u1ea3o v\u1ec7 h\u1ed3 quang (Arc Flash Relay) nh\u01b0 sau:\u00a0Khi s\u1ef1 c\u1ed1 h\u1ed3 quang h\u00ecnh th\u00e0nh, \u00e1nh s\u00e1ng l\u00e0 y\u1ebfu t\u1ed1 d\u1ec5 d\u00e0ng ph\u00e1t hi\u1ec7n nh\u1ea5t n\u00ean h\u1ea7u h\u1ebft c\u00e1c role b\u1ea3o v\u1ec7 h\u1ed3 quang s\u1eed d\u1ee5ng c\u1ea3m bi\u1ebfn \u00e1nh s\u00e1ng nh\u1eb1m ph\u00e1t hi\u1ec7n s\u1ef1 h\u00ecnh th\u00e0nh c\u1ee7a h\u1ed3 quang. T\u00edn hi\u1ec7u \u0111\u1ea7u ra c\u1ee7a c\u1ea3m bi\u1ebfn \u00e1nh s\u00e1ng \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi role b\u1ea3o v\u1ec7 h\u1ed3 quang c\u00f3 nhi\u1ec7m v\u1ee5 g\u1eedi t\u00edn hi\u1ec7u c\u1eaft ngu\u1ed3n v\u00e0 c\u1eaft d\u00f2ng n\u0103ng l\u01b0\u1ee3ng cung c\u1ea5p cho h\u1ed3 quang. Role s\u1ebd ph\u00e1t hi\u1ec7n ra h\u1ed3 quang khi c\u1ea3m bi\u1ebfn nh\u1eadn c\u01b0\u1eddng \u0111\u1ed9 \u00e1nh s\u00e1ng l\u1edbn h\u01a1n ng\u01b0\u1ee1ng t\u00e1c \u0111\u1ed9ng.<\/p>\n

\u1ee8ng d\u1ee5ng b\u1ea3o v\u1ec7 ch\u1ed1ng, ph\u00f2ng h\u1ed3 quang d\u1ef1a tr\u00ean c\u1ea3m bi\u1ebfn \u00e1nh s\u00e1ng \u0111\u00e3 tr\u1edf th\u00e0nh B\u00ccNH TH\u01af\u1edcNG<\/strong> m\u1edbi trong b\u1ea3o v\u1ec7 ngu\u1ed3n \u0111i\u1ec7n. B\u1ea3o v\u1ec7 ch\u1ed1ng, ph\u00f2ng h\u1ed3 quang mang l\u1ea1i nh\u1eefng l\u1ee3i \u00edch kh\u00f4ng th\u1ec3 nghi ng\u1edd ch\u1eb3ng h\u1ea1n nh\u01b0 t\u1ed1c \u0111\u1ed9, t\u00ednh ch\u1ecdn l\u1ecdc v\u00e0 hi\u1ec7u qu\u1ea3 chi ph\u00ed \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n. B\u1ea3o v\u1ec7 ch\u1ed1ng ph\u00f2ng h\u1ed3 quang \u0111\u00e3 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng \u1edf nhi\u1ec1u ch\u00e2u l\u1ee5c v\u00e0 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng trong t\u1ea5t c\u1ea3 c\u00e1c lo\u1ea1i h\u1ec7 th\u1ed1ng ph\u00e2n ph\u1ed1i \u0111i\u1ec7n kh\u00e1c nhau, t\u1eeb c\u00f4ng ty \u0111i\u1ec7n l\u1ef1c \u0111\u1ebfn ph\u00e1t \u0111i\u1ec7n truy\u1ec1n th\u1ed1ng v\u00e0 t\u00e1i t\u1ea1o, c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p, h\u00e0ng h\u1ea3i, ngo\u00e0i kh\u01a1i, c\u01a1 quan v\u00e0 c\u01a1 s\u1edf th\u01b0\u01a1ng m\u1ea1i trong c\u00e1c t\u1ee7 \u0111\u00f3ng c\u1eaft h\u1ea1 \u00e1p \u2013 trung \u00e1p v\u00e0 thi\u1ebft b\u1ecb \u0111i\u1ec1u khi\u1ec3n.<\/p>\n

Trong b\u00e0i vi\u1ebft n\u00e0y, ch\u00fang t\u00f4i s\u1ebd \u0111\u1ec1 c\u1eadp t\u1edbi d\u00f2ng role AF0500 c\u1ee7a LittelFuse.<\/p>\n

\"\"<\/p>\n

H\u00ecnh 1: H\u00ecnh \u1ea3nh th\u1ef1c t\u1ebf c\u1ee7a AF0500<\/em><\/p>\n

1. M\u00f4 t\u1ea3 chung<\/strong><\/p>\n

Role AF0500 l\u00e0 role b\u1ea3o v\u1ec7 h\u1ed3 quang d\u1ea1ng vi x\u1eed l\u00fd, gi\u00fap h\u1ea1n ch\u1ebf thi\u1ec7t h\u1ea1i do s\u1ef1 c\u1ed1 h\u1ed3 quang b\u1eb1ng vi\u1ec7c ph\u00e1t hi\u1ec7n \u00e1nh s\u00e1ng t\u1eeb tia h\u1ed3 quang v\u00e0 nhanh ch\u00f3ng t\u00e1c \u0111\u1ed9ng \u0111\u1ec3 ng\u1eaft m\u00e1y c\u1eaft t\u1ed5ng. D\u00f2ng AF0500 r\u1ea5t ph\u00f9 h\u1ee3p l\u1eafp trong t\u1ee7 \u0111i\u1ec7n t\u1ed5ng, tr\u1ea1m bi\u1ebfn \u00e1p, tr\u1ea1m converter.<\/p>\n

C\u00e1c c\u1ea3m bi\u1ebfn, \u0111\u1ea7u v\u00e0o v\u00e0 c\u00e1c k\u1ebft n\u1ed1i \u0111\u01b0\u1ee3c role theo d\u00f5i gi\u00e1m s\u00e1t \u0111\u1ea3m b\u1ea3o lu\u00f4n trong tr\u1ea1ng th\u00e1i ho\u1ea1t \u0111\u1ed9ng t\u1ed1t. C\u1ed5ng USB h\u1ed7 tr\u1ee3 vi\u1ec7c c\u1ea5u h\u00ecnh v\u00e0 thu th\u1eadp th\u00f4ng tin tr\u1ea1ng th\u00e1i s\u1ef1 c\u1ed1,\u2026<\/p>\n

AF0500 h\u1ed7 tr\u1ee3 c\u1ed5ng Ethernet v\u00e0 giao ti\u1ebfp Modbus TCP. Nh\u01b0 v\u1eady vi\u1ec7c c\u00e0i \u0111\u1eb7t role t\u00e1c \u0111\u1ed9ng b\u1ea3o v\u1ec7 theo v\u00f9ng, t\u00e1c \u0111\u1ed9ng ng\u1eaft m\u00e1y c\u1eaft \u1edf ph\u00eda tr\u00ean \u0111\u1ea7u ngu\u1ed3n ho\u1eb7c t\u00e1c \u0111\u1ed9ng ng\u1eaft m\u00e1y c\u1eaft li\u00ean l\u1ea1c c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh d\u1ec5 d\u00e0ng.<\/p>\n

C\u00f3 th\u1ec3 k\u1ebft n\u1ed1i nhi\u1ec1u role AF0500 v\u1edbi nhau \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi c\u1ea5u h\u00ecnh thi\u1ebft k\u1ebf c\u1ee7a h\u1ec7 th\u1ed1ng b\u1ea3o v\u1ec7 h\u1ed3 quang.<\/p>\n

\"\"<\/p>\n

H\u00ecnh 2: C\u00e1c \u0111\u1ea7u v\u00e0o\/ra k\u1ebft n\u1ed1i c\u1ee7a AF0500<\/em><\/p>\n

2. C\u1ea3m bi\u1ebfn \u00e1nh s\u00e1ng<\/strong><\/p>\n

Role AF0500 nh\u1eadn c\u1ea3 2 lo\u1ea1i c\u1ea3m bi\u1ebfn d\u1ea1ng \u0111i\u1ec3m PGA-LS10 v\u00e0 c\u1ea3m bi\u1ebfn d\u1ea1ng s\u1ee3i quang PGA-LS20\/LS30.<\/p>\n

\"\"<\/p>\n

H\u00ecnh 3: C\u1ea3m bi\u1ebfn \u0111i\u1ec3m PGA-LS10<\/em><\/p>\n

C\u1ea3m bi\u1ebfn \u0111i\u1ec3m PGA-LS10: ph\u1ea1m vi gi\u00e1m s\u00e1t trong b\u00e1n k\u00ednh n\u1eeda h\u00ecnh c\u1ea7u 2m. C\u00f3 \u0111\u00e8n ch\u1ec9 th\u1ecb tr\u1ea1ng th\u00e1i (s\u1eb5n s\u00e0ng l\u00e0m vi\u1ec7c) ho\u1eb7c l\u1ed7i. C\u1ea3m bi\u1ebfn c\u00f3 th\u1ec3 l\u1eafp \u0111\u1eb7t c\u00e1ch xa role \u0111\u1ebfn 50m.<\/p>\n

\"\"<\/p>\n

H\u00ecnh 4: C\u1ea3m bi\u1ebfn s\u1ee3i\u00a0 PGA-LS20\/30<\/em><\/p>\n

C\u1ea3m bi\u1ebfn s\u1ee3i PGA-LS20\/30: ph\u1ea1m vi gi\u00e1m s\u00e1t trong to\u00e0n b\u1ed9 chi\u1ec1u d\u00e0i c\u1ee7a s\u1ee3i quang, 360 \u0111\u1ed9, b\u00e1n k\u00ednh l\u00ean t\u1edbi 8m ho\u1eb7c 18m. L\u00fd t\u01b0\u1edfng \u0111\u1ec3 b\u1ea3o v\u1ec7 thanh c\u00e1i, l\u1eafp \u0111\u1eb7t nhi\u1ec1u ng\u0103n nh\u01b0 trung t\u00e2m \u0111i\u1ec1u khi\u1ec3n \u0111\u1ed9ng c\u01a1 ho\u1eb7c c\u00e1c khu v\u1ef1c c\u00f3 nhi\u1ec1u v\u1eadt c\u1ea3n. C\u00f3 \u0111\u00e8n ch\u1ec9 th\u1ecb tr\u1ea1ng th\u00e1i (s\u1eb5n s\u00e0ng l\u00e0m vi\u1ec7c) ho\u1eb7c l\u1ed7i. C\u1ea3m bi\u1ebfn c\u00f3 th\u1ec3 l\u1eafp \u0111\u1eb7t c\u00e1ch xa role \u0111\u1ebfn 50m.<\/p>\n

Role v\u00e0 c\u1ea3m bi\u1ebfn c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng l\u1eafp \u0111\u1eb7t ngay c\u1ea3 \u0111\u1ed1i v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng c\u1ea3i t\u1ea1o m\u00e0 g\u1ea7n nh\u01b0 kh\u00f4ng c\u1ea7n ph\u1ea3i thay \u0111\u1ed5i c\u1ea5u h\u00ecnh b\u1ed1 tr\u00ed c\u1ee7a t\u1ee7 \u0111i\u1ec7n. \u0110\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u01a1n gi\u1ea3n, role c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng ngay m\u00e0 kh\u00f4ng c\u1ea7n ph\u1ea3i c\u1ea5u h\u00ecnh th\u00f4ng qua m\u00e1y t\u00ednh. \u0110\u1ed1i v\u1edbi h\u1ec7 th\u1ed1ng ph\u1ee9c t\u1ea1p nh\u01b0 c\u00f3 nhi\u1ec1u ngu\u1ed3n c\u1ea5p, vi\u1ec7c c\u1ea5u h\u00ecnh l\u1ea1i role c\u0169ng t\u01b0\u01a1ng \u0111\u1ed1i \u0111\u01a1n gi\u1ea3n th\u00f4ng qua c\u1ed5ng USB v\u00e0 ph\u1ea7n m\u1ec1m giao ti\u1ebfp.<\/p>\n

Th\u00f4ng th\u01b0\u1eddng, m\u1ed7i khoang t\u1ee7 n\u00ean s\u1eed d\u1ee5ng 1 ho\u1eb7c 2 c\u1ea3m bi\u1ebfn \u0111\u1ea3m b\u1ea3o ph\u1ee7 \u0111\u01b0\u1ee3c c\u1ea3 thanh c\u00e1i d\u1ecdc v\u00e0 ngang, khoang m\u00e1y c\u1eaft v\u00e0 b\u1ea5t k\u00ec v\u1ecb tr\u00ed n\u00e0o c\u00f3 nguy c\u01a1 ph\u00e1t sinh h\u1ed3 quang. C\u1ea3m bi\u1ebfn s\u1ee3i quang c\u00f3 th\u1ec3 ch\u1ea1y d\u1ecdc t\u1ee7 v\u00e0 c\u00e1c khu v\u1ef1c n\u01a1i m\u00e0 c\u1ea3m bi\u1ebfn \u0111i\u1ec3m kh\u00f4ng ti\u1ebfp x\u00fac t\u1edbi \u0111\u01b0\u1ee3c gi\u00fap n\u00e2ng cao kh\u1ea3 n\u0103ng b\u1ea3o v\u1ec7 c\u1ee7a role.<\/p>\n

\"\"<\/p>\n

H\u00ecnh 5: V\u00ed d\u1ee5 minh h\u1ecda v\u1ec1 l\u1eafp \u0111\u1eb7t c\u1ea3m bi\u1ebfn \u00e1nh s\u00e1ng trong t\u1ee7 \u0111i\u1ec7n<\/em><\/p>\n

3. T\u00ednh n\u0103ng c\u1ee7a thi\u1ebft b\u1ecb<\/strong><\/p>\n

– 04 \u0111\u1ea7u v\u00e0o c\u1ea3m bi\u1ebfn, h\u1ed7 tr\u1ee3 c\u1ea3m bi\u1ebfn \u0111i\u1ec3m v\u00e0 c\u1ea3m bi\u1ebfn s\u1ee3i quang;<\/p>\n

– Th\u1eddi gian t\u00e1c \u0111\u1ed9ng <1ms: H\u1ea1n ch\u1ebf thi\u1ec7t h\u1ea1i do h\u1ed3 quang v\u00e0 tai n\u1ea1n lao \u0111\u1ed9ng;<\/p>\n

– 2 ti\u1ebfp \u0111i\u1ec3m \u0111\u1ea7u ra t\u00e1c \u0111\u1ed9ng nhanh IGBT: H\u1ed7 tr\u1ee3 c\u00e1c \u1ee9ng d\u1ee5ng c\u00f3 m\u00e1y c\u1eaft \u0111\u1ea7u ngu\u1ed3n ho\u1eb7c m\u00e1y c\u1eaft li\u00ean l\u1ea1c;<\/p>\n

– D\u1ea3i ngu\u1ed3n c\u1ea5p \u0111a d\u1ea1ng:\u00a0 100 – 240VAC, 24 – 48VDC ho\u1eb7c 110 – 250VDC;<\/p>\n

– H\u1ec7 th\u1ed1ng gi\u00e1m s\u00e1t tr\u1ea1ng th\u00e1i, li\u00ean t\u1ee5c gi\u00e1m s\u00e1t tr\u1ea1ng th\u00e1i c\u00e1c c\u1ea3m bi\u1ebfn \u0111\u1ea3m b\u1ea3o ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh;<\/p>\n

– \u0110\u00e8n hi\u1ec3n th\u1ecb tr\u1ea1ng th\u00e1i LED (tr\u00ean m\u1eb7t role v\u00e0 c\u1ea3m bi\u1ebfn);<\/p>\n

– Kh\u1ea3 n\u0103ng li\u00ean k\u1ebft: Nhi\u1ec1u role c\u00f3 th\u1ec3 li\u00ean k\u1ebft v\u1edbi nhau h\u00ecnh th\u00e0nh h\u1ec7 th\u1ed1ng;<\/p>\n

\"\"<\/p>\n

H\u00ecnh 6: Role AF0500 li\u00ean k\u1ebft h\u00ecnh h\u1ec7 th\u1ed1ng th\u1ed1ng gi\u00e1m s\u00e1t<\/em><\/p>\n

– Giao ti\u1ebfp th\u00f4ng qua c\u1ed5ng USB: Thu th\u1eadp d\u1eef li\u1ec7u v\u00e0 ph\u1ea7n m\u1ec1m c\u1ea5u h\u00ecnh th\u00f4ng qua c\u1ed5ng USB m\u00e0 kh\u00f4ng \u0111\u00f2i h\u1ecfi ph\u1ea7n m\u1ec1m chuy\u00ean bi\u1ec7t;<\/p>\n

– Thu th\u1eadp d\u1eef li\u1ec7u: Ghi l\u1ea1i \u0111\u01b0\u1ee3c 2048 s\u1ef1 ki\u1ec7n;<\/p>\n

– Truy\u1ec1n th\u00f4ng Ethernet\/ Modbus TCP.<\/p>\n

4. \u1ee8ng d\u1ee5ng c\u1ee7a thi\u1ebft b\u1ecb<\/strong><\/p>\n

– B\u1ea3o v\u1ec7 ph\u00e2n v\u00f9ng: B\u1ea3o v\u1ec7 theo 2 v\u00f9ng \u0111\u1ed9c l\u1eadp.<\/p>\n

\"\"<\/p>\n

H\u00ecnh 7: B\u1ea3o v\u1ec7 ph\u00e2n v\u00f9ng<\/em><\/p>\n

– T\u00e1c \u0111\u1ed9ng m\u00e1y c\u1eaft t\u1ed5ng (\u0111\u1ea7u ngu\u1ed3n): Trong tr\u01b0\u1eddng h\u1ee3p s\u1ef1 c\u1ed1 h\u1ed3 quang x\u1ea3y ra, m\u00e1y c\u1eaft t\u1ea1i v\u1ecb tr\u00ed x\u1ea3y ra h\u1ed3 quang kh\u00f4ng c\u1eaft (b\u1ecb l\u1ed7i), role s\u1ebd g\u1eedi t\u00edn hi\u1ec7u t\u00e1c \u0111\u1ed9ng c\u1eaft l\u00ean m\u00e1y c\u1eaft t\u1ed5ng (\u0111\u1ea7u ngu\u1ed3n) \u0111\u1ec3 lo\u1ea1i b\u1ecf s\u1ef1 c\u1ed1.<\/p>\n

\"\"<\/p>\n

H\u00ecnh 8: \u1ee8ng d\u1ee5ng t\u00e1c \u0111\u1ed9ng m\u00e1y c\u1eaft t\u1ed5ng (\u0111\u1ea7u ngu\u1ed3n)<\/em><\/p>\n

– B\u1ea3o v\u1ec7 m\u00e1y c\u1eaft li\u00ean l\u1ea1c: Trong tr\u01b0\u1eddng h\u1ee3p x\u1ea3y ra s\u1ef1 c\u1ed1 t\u1ea1i 1 khu v\u1ef1c c\u1ee7a t\u1ee7 t\u1ed5ng, role t\u00e1c \u0111\u1ed9ng c\u1eaft \u0111\u1ed3ng th\u1eddi c\u1ea3 ngu\u1ed3n c\u1ea5p v\u00e0 m\u00e1y c\u1eaft li\u00ean l\u1ea1c t\u1eeb \u0111\u00f3 c\u00e1ch ly ho\u00e0n to\u00e0n s\u1ef1 c\u1ed1 ra kh\u1ecfi h\u1ec7 th\u1ed1ng v\u00e0 \u0111\u1ea3m b\u1ea3o t\u00ednh li\u00ean t\u1ee5c c\u1ee7a ph\u1ea7n c\u00f2n l\u1ea1i.<\/p>\n

\"\"<\/p>\n

H\u00ecnh 9: \u1ee8ng d\u1ee5ng b\u1ea3o v\u1ec7 m\u00e1y c\u1eaft li\u00ean l\u1ea1c<\/em><\/p>\n

Qu\u00fd kh\u00e1ch h\u00e0ng tham kh\u1ea3o th\u00eam t\u1ea1i: Link<\/a><\/span><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

H\u1ed3 quang \u0111i\u1ec7n l\u00e0 m\u1ed9t hi\u1ec7n t\u01b0\u1ee3ng th\u01b0\u1eddng th\u1ea5y xu\u1ea5t hi\u1ec7n trong l\u01b0\u1edbi \u0111i\u1ec7n, t\u00e1c h\u1ea1i c\u1ee7a n\u00f3 g\u00e2y th\u01b0\u01a1ng t\u00edch cho con ng\u01b0\u1eddi, g\u00e2y h\u01b0 h\u1ecfng n\u1eb7ng cho thi\u1ebft b\u1ecb v\u00e0 g\u00e2y s\u1ef1 c\u1ed1 l\u01b0\u1edbi \u0111i\u1ec7n. H\u1ed3 quang \u0111i\u1ec7n v\u00e0 t\u00e1c h\u1ea1i c\u1ee7a n\u00f3:\u00a0Link Hi\u1ec7n nay trong t\u1ee7 \u0111i\u1ec7n trung \u00e1p v\u00e0 h\u1ea1 \u00e1p … Continue reading AF0500 – Role b\u1ea3o v\u1ec7 h\u1ed3 quang theo v\u00f9ng<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":120142,"featured_media":5167,"comment_status":"open","ping_status":"open","sticky":true,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26,25,1350,106],"tags":[1877,1869,1871,1873,1875,1859,1863,1879,1881,1883],"class_list":["post-5165","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-giai-phap-dien-dau-khi","category-giai-phap-nganh-mo","category-cho-nha-may","category-tin-tuc-vi","tag-af0500","tag-arc-flash-relay","tag-bao-ve","tag-cam-bien-anh-sang","tag-cam-bien-quang","tag-ho-quang","tag-littelfuse","tag-pga-ls10","tag-pga-ls20","tag-pga-ls30"],"yoast_head":"\nAF0500 - Role b\u1ea3o v\u1ec7 h\u1ed3 quang theo v\u00f9ng - MES Engineering<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/tofu.isoinaction.com\/mesevn\/vi\/af0500-role-bao-ve-ho-quang-theo-vung.html\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"AF0500 - Role b\u1ea3o v\u1ec7 h\u1ed3 quang theo v\u00f9ng\" \/>\n<meta property=\"og:description\" content=\"H\u1ed3 quang \u0111i\u1ec7n l\u00e0 m\u1ed9t hi\u1ec7n t\u01b0\u1ee3ng th\u01b0\u1eddng th\u1ea5y xu\u1ea5t hi\u1ec7n trong l\u01b0\u1edbi \u0111i\u1ec7n, t\u00e1c h\u1ea1i c\u1ee7a n\u00f3 g\u00e2y th\u01b0\u01a1ng t\u00edch cho con ng\u01b0\u1eddi, g\u00e2y h\u01b0 h\u1ecfng n\u1eb7ng cho thi\u1ebft b\u1ecb v\u00e0 g\u00e2y s\u1ef1 c\u1ed1 l\u01b0\u1edbi \u0111i\u1ec7n. 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