{"id":25168,"date":"2011-01-12T16:22:55","date_gmt":"2011-01-12T09:22:55","guid":{"rendered":"https:\/\/banbientan.com\/?p=25168"},"modified":"2011-01-12T16:22:55","modified_gmt":"2011-01-12T09:22:55","slug":"tim-hieu-ve-loi-qua-ap-tren-bien-tan-ov1-ov2-ov3-mua-ban-sua-chua-bien-tan-tai-ha-noi","status":"publish","type":"post","link":"https:\/\/hunglong.banbientan.com\/?p=25168","title":{"rendered":"T\u00ecm hi\u1ec3u v\u1ec1 l\u1ed7i qu\u00e1 \u00e1p tr\u00ean bi\u1ebfn t\u1ea7n OV1 OV2 OV3 Mua b\u00e1n s\u1eeda ch\u1eefa bi\u1ebfn t\u1ea7n t\u1ea1i h\u00e0 n\u1ed9i"},"content":{"rendered":"\n

\"\"<\/a>Nhi\u1ec1u b\u1ea1n c\u00f3 th\u1eafc m\u1eafc v\u1ec1 l\u1ed7i qu\u00e1 \u00e1p ov1,ov2 v\u00e0 ov3 c\u1ee7a bi\u1ebfn t\u1ea7n. m\u1eddi c\u00e1c b\u1ea1n c\u00f9ng tham kh\u1ea3o b\u00e0i vi\u1ebft sau \u0111\u00e2y v\u1ec1 nguy\u00ean nh\u00e2n v\u00e0 c\u00e1ch kh\u1eafc ph\u1ee5c l\u1ed7i n\u00e0y tr\u00ean bi\u1ebfn t\u1ea7n nh\u00e9.<\/p>\n

C\u01a1 b\u1ea3n v\u1ec1 l\u1ed7i qu\u00e1 \u00e1p OV c\u1ee7a bi\u1ebfn t\u1ea7n<\/h2>\n

M\u1ed9t trong nh\u1eefng l\u1ed7i ph\u1ed5 bi\u1ebfn v\u00e0 th\u01b0\u1eddng r\u1ea5t d\u1ec5 g\u1eb7p tr\u00ean bi\u1ebfn t\u1ea7n l\u00e0 l\u1ed7i qu\u00e1 \u00e1p. L\u1ed7i qu\u00e1 \u00e1p ti\u1ebfng anh c\u00f3 ngh\u0129a l\u00e0 over voltge, ch\u00ednh v\u00ec v\u1eady tr\u00ean bi\u1ebfn t\u1ea7n ph\u1ed5 bi\u1ebfn th\u01b0\u1eddng b\u00e1o ov hay ov 1-2 g\u00ec \u0111\u00f3. \u0110\u1ed1i v\u1edbi m\u1ed9t s\u1ed1 h\u00e3ng bi\u1ebfn t\u1ea7n th\u00ec c\u00e1ch th\u1ec3 hi\u1ec7n l\u1ed7i n\u00e0y l\u00e0 E7( e c\u00f3 ngh\u0129a l\u00e0 error) hay f4( f c\u00f3 ngh\u0129a l\u00e0 fault).<\/p>\n

L\u01b0u \u00fd khi l\u1ed7i qu\u00e1 \u00e1p x\u1ea3y ra th\u01b0\u1eddng l\u00e0 t\u1ee9c th\u1eddi t\u1ea1i m\u1ed9t th\u1eddi \u0111i\u1ec3m nh\u1ea5t \u0111\u1ecbnh n\u00ean b\u1ea1n ch\u1ec9 c\u00f3 th\u1ec3 theo d\u00f5i \u0111i\u1ec7n \u00e1p DC bus l\u01b0u tr\u00ean bi\u1ebfn t\u1ea7n th\u1eddi \u0111i\u1ec3m l\u1ed7i m\u00e0 th\u00f4i r\u1ea5t kh\u00f3 \u0111\u1ec3 \u0111o \u0111\u01b0\u1ee3c \u0111i\u1ec7n \u00e1p b\u1ecb qu\u00e1 l\u00fac n\u00e0y.<\/p>\n

Khi bi\u1ebfn t\u1ea7n x\u1ea3y ra l\u1ed7i qu\u00e1 \u00e1p li\u00ean t\u1ee5c c\u00e1c b\u1ea1n ph\u1ea3i ngay l\u1eadp t\u1ee9c t\u00ecm nguy\u00ean nh\u00e2n v\u00e0 c\u00e1ch kh\u1eafc ph\u1ee5c tr\u00e1nh vi\u1ec7c reset ch\u1ea1y l\u1ea1i nhi\u1ec1u l\u1ea7n c\u00f3 th\u1ec3 l\u00e0m bi\u1ebfn t\u1ea7n b\u1ecb n\u1ed5 ho\u1eb7c h\u01b0 h\u1ecfng n\u1eb7ng h\u01a1n. Khi g\u1eb7p l\u1ed7i n\u00e0y c\u00e1c b\u1ea1n ph\u1ea3i b\u00ecnh t\u0129nh ki\u1ec3m tra v\u00e0 gi\u1ea3i quy\u1ebft theo hai h\u01b0\u1edbng nh\u01b0 sau.<\/p>\n

L\u1ed7i qu\u00e1 \u00e1p OV do \u0111i\u1ec7n \u00e1p \u0111\u1ea7u v\u00e0o bi\u1ebfn t\u1ea7n qu\u00e1 cao<\/h2>\n

Nguy\u00ean nh\u00e2n g\u00e2y ra l\u1ed7i qu\u00e1 \u00e1p l\u00e0 \u0111i\u1ec7n \u00e1p \u0111o v\u1ec1 tr\u00ean DC bus qu\u00e1 sao, v\u01b0\u1ee3t ng\u01b0\u1ee1ng cho ph\u00e9p c\u1ee7a\u00a0bi\u1ebfn t\u1ea7n<\/a>\u00a0n\u00ean s\u1ebd g\u00e2y ra l\u1ed7i. M\u1ed9t trong nh\u1eefng nguy\u00ean nh\u00e2n g\u00e2y ra \u0111i\u1ec7n \u00e1p cao tr\u00ean DC bus \u0111\u00f3 ch\u00ednh l\u00e0 ngu\u1ed3n \u0111i\u1ec7n \u00e1p \u0111\u1ea7u v\u00e0o qu\u00e1 cao. L\u00fac n\u00e0y c\u00e1c b\u1ea1n h\u00e3y \u0111o \u0111i\u1ec7n \u00e1p \u0111\u1ea7u v\u00e0o ho\u1eb7c ki\u1ec3m tra th\u00f4ng s\u1ed1 dc bus l\u00fac l\u1ed7i l\u00e0 bao nhi\u00eau( th\u00f4ng s\u1ed1 n\u00e0y th\u01b0\u1eddng l\u01b0u trong b\u1ed9 th\u00f4ng s\u1ed1 monitor c\u1ee7a bi\u1ebfn t\u1ea7n).<\/p>\n

Bi\u1ebfn t\u1ea7n b\u1ecb qu\u00e1 \u00e1p \u0111\u1ea7u v\u00e0o c\u00f3 th\u1ec3 do tr\u1ea1m bi\u1ebfn \u00e1p c\u00f3 v\u1ea5n \u0111\u1ec1 l\u00e0m t\u0103ng \u00e1p \u1edf \u0111i\u1ec7n ngu\u1ed3n bi\u1ebfn t\u1ea7n. C\u0169ng c\u00f3 m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p qu\u00e1 \u00e1p ngu\u1ed3n do t\u1ee7 t\u1ee5 b\u1ee5 c\u00f3 v\u1ea5n \u0111\u1ec1.<\/p>\n

N\u1ebfu \u0111i\u1ec7n \u00e1p \u0111\u1ea7u v\u00e0o b\u1ea1n \u0111o th\u1ea5y b\u00ecnh th\u01b0\u1eddng th\u00ec h\u00e3y tham kh\u1ea3o ti\u1ebfp ph\u01b0\u01a1ng \u00e1n th\u1ee9 2 b\u00ean d\u01b0\u1edbi \u0111\u00e2y.<\/p>\n

L\u1ed7i qu\u00e1 \u00e1p OV do t\u1ea3i c\u00f3 qu\u00e1n t\u00ednh l\u1edbn<\/h2>\n

M\u1ed9t nguy\u00ean nh\u00e2n kh\u00e1c g\u00e2y ra l\u1ed7i qu\u00e1 \u00e1p \u0111\u00f3 ch\u00ednh l\u00e0 t\u1ea3i c\u1ee7a bi\u1ebfn t\u1ea7n thu\u1ed9c d\u1ea1ng t\u1ea3i c\u00f3 qu\u00e1n t\u00ednh l\u1edbn n\u00ean d\u1eabn t\u1edbi c\u00f3 m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p \u0111\u1ed9ng c\u01a1 tr\u1edf th\u00e0nh m\u00e1y ph\u00e1t t\u1ea1o \u0111i\u1ec7n d\u1ed9i ng\u01b0\u1ee3c l\u1ea1i DC g\u00e2y l\u1ed7i qu\u00e1 \u00e1p. L\u1ed7i qu\u00e1 \u00e1p n\u00e0y th\u01b0\u1eddng xu\u1ea5t hi\u1ec7n khi bi\u1ebfn t\u1ea7n kh\u1edfi \u0111\u1ed9ng ho\u1eb7c d\u1eebng l\u1ea1i. Trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y c\u00f3 2 c\u00e1ch \u0111\u1ec3 b\u1ea1n x\u1eed l\u00fd nh\u01b0 sau. M\u1ed9t l\u00e0 c\u00e0i th\u1eddi gian t\u0103ng gi\u1ea3m t\u1ed1c c\u1ee7a bi\u1ebfn t\u1ea7n d\u00e0i ra, hai l\u00e0 g\u1eafn\u00a0\u0111i\u1ec7n tr\u1edf x\u1ea3 cho bi\u1ebfn t\u1ea7n<\/a>.<\/p>\n

\u0110\u1ed1i v\u1edbi tr\u01b0\u1eddng h\u1ee3p bi\u1ebfn t\u1ea7n \u0111\u00e3 c\u00f3 s\u1eb5n \u0111i\u1ec7n tr\u1edf x\u1ea3 th\u00ec n\u00ean ki\u1ec3m tra xem c\u00f3 k\u00edch ho\u1ea1t t\u00ednh n\u0103ng x\u1ea3 tr\u00ean bi\u1ebfn t\u1ea7n l\u00ean ch\u01b0a ? \u0110\u1ed1i v\u1edbi m\u1ed9t s\u1ed1 d\u00f2ng bi\u1ebfn t\u1ea7n c\u0169 kh\u00f4ng t\u00edch h\u1ee3p b\u1ed9 x\u1ea3 b\u00ean trong th\u00ec c\u00e1c b\u1ea1n c\u1ea7n ph\u1ea3i mua b\u1ed9 x\u1ea3 r\u1eddi \u0111\u1ec3 g\u1eafn cho bi\u1ebfn t\u1ea7n tr\u01b0\u1edbc khi g\u1eafn \u0111i\u1ec7n tr\u1edf x\u1ea3.<\/p>\n

L\u1ed7i qu\u00e1 \u00e1p c\u0169ng c\u00f3 th\u1ec3 x\u1ea3y ra do b\u1ed9 x\u1ea3 b\u00ean trong ho\u1eb7c g\u1eafn ngo\u00e0i c\u1ee7a bi\u1ebfn t\u1ea7n b\u1ecb l\u1ed7i kh\u00f4ng x\u1ea3 \u0111i\u1ec7n d\u01b0 \u0111\u01b0\u1ee3c. B\u1ea1n c\u0169ng n\u00ean ki\u1ec3m tra l\u1ea1i ph\u1ea7n linh ki\u1ec7n n\u00e0y n\u1ebfu bi\u1ebfn t\u1ea7n v\u1eabn b\u1ecb b\u00e1o l\u1ed7i qu\u00e1 \u00e1p li\u00ean t\u1ee5c.<\/p>\n

Ngo\u00e0i ra th\u00ec c\u0169ng c\u00f3 m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p bi\u1ebfn t\u1ea7n l\u1ed7i qu\u00e1 \u00e1p do c\u1ea3m bi\u1ebfn \u0111o \u0111i\u1ec7n \u00e1p b\u1ecb h\u1ecfng d\u1eabn t\u1edbi k\u1ebft qu\u1ea3 tr\u1ea3 v\u1ec1 board x\u1eed l\u00fd kh\u00f4ng \u0111\u00fang n\u00ean l\u00e0m cho bi\u1ebfn t\u1ea7n b\u1ecb b\u00e1o l\u1ed7i.<\/p>\n

C\u00f4ng ty TNHH \u0111i\u1ec7n v\u00e0 t\u1ef1 \u0111\u1ed9ng h\u00f3a H\u01b0ng Long (Hung Long AE Co.,ltd)<\/strong><\/p>\n

S\u1ed1 66, Ng\u00f5 282 Kim Giang, Ph\u01b0\u1eddng \u0110\u1ea1i Kim, Qu\u1eadn Ho\u00e0ng Mai, H\u00e0 N\u1ed9i<\/strong><\/p>\n

Mua b\u00e1n, l\u1eafp \u0111\u1eb7t, c\u00e0i \u0111\u1eb7t, s\u1eeda ch\u1eeda Bi\u1ebfn t\u1ea7n v\u00e0 c\u00e1c thi\u1ebft b\u1ecb t\u1ef1 \u0111\u1ed9ng h\u00f3a<\/u><\/strong><\/p>\n

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