{"product_id":"1797-ibn16-allen-bradley-16-point-namur-intrinsically-safe-input-module","title":"1797-IBN16 | Allen-Bradley Módulo de Entrada Intrinsecamente Seguro NAMUR de 16 Pontos","description":"\u003ch2\u003e\u003cstrong\u003eVisão Geral do Módulo\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan class=\"citation-300\"\u003eO\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cstrong\u003e1797-IBN16\u003c\/strong\u003e\u003cspan class=\"citation-300 citation-end-300\"\u003e\u003cspan\u003e \u003c\/span\u003eé um módulo de entrada digital de alta densidade e intrinsecamente seguro (IS), especificamente projetado para ambientes perigosos.\u003csup class=\"superscript\"\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"citation-299 citation-end-299\"\u003eParte da família Allen-Bradley FLEX Ex I\/O, este módulo foi desenvolvido para se conectar diretamente a até 16 sensores de proximidade compatíveis com NAMUR ou interruptores de contato seco localizados nas Zonas 1 ou 2 (Classe I, II, III, Divisão 1).\u003csup class=\"superscript\"\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eAo integrar barreiras de segurança intrínseca diretamente no hardware de E\/S, o\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1797-IBN16\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eelimina a necessidade de barreiras de isolamento externas, reduzindo significativamente o espaço no gabinete e a complexidade da fiação. Ele oferece diagnósticos avançados, incluindo detecção de circuito aberto e curto-circuito, para garantir máxima disponibilidade em aplicações críticas de processo, como refino químico e produção de petróleo e gás.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eEspecificações Técnicas Detalhadas\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan class=\"citation-298\"\u003eO\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cstrong\u003e1797-IBN16\u003c\/strong\u003e\u003cspan class=\"citation-298 citation-end-298\"\u003e\u003cspan\u003e \u003c\/span\u003eé um módulo de entrada sinking não isolado que atende a rigorosos padrões internacionais de proteção contra explosão.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan class=\"citation-297\"\u003e\u003c\/span\u003e\u003cstrong\u003eNúmero de Entradas:\u003c\/strong\u003e\u003cspan class=\"citation-297 citation-end-297\"\u003e\u003cspan\u003e \u003c\/span\u003e16 Canais (Não isolados, Sinking)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTipo de Entrada:\u003c\/strong\u003e\u003cspan class=\"citation-296 citation-end-296\"\u003e\u003cspan\u003e \u003c\/span\u003eCompatível com NAMUR (IEC 60947-5-6)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan class=\"citation-295\"\u003e\u003c\/span\u003e\u003cstrong\u003eClassificações de Segurança Intrínseca:\u003c\/strong\u003e\u003cspan class=\"citation-295 citation-end-295\"\u003e\u003cspan\u003e \u003c\/span\u003e* Ex ia IIB\/IIC T4 \/ AEx ia IIC T4\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eClasse I, II, III, Divisão 1, Grupos A–G T4\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan class=\"citation-294\"\u003e\u003c\/span\u003e\u003cstrong\u003eCorrente em Estado Ligado:\u003c\/strong\u003e\u003cspan class=\"citation-294 citation-end-294\"\u003e\u003cspan\u003e \u003c\/span\u003e\u0026gt; 2,1 mA\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCorrente em Estado Desligado:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u0026lt; 1,2 mA\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHis terese:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e0,2 mA\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan class=\"citation-293\"\u003e\u003c\/span\u003e\u003cstrong\u003eTensão Máxima de Carga:\u003c\/strong\u003e\u003cspan class=\"citation-293 citation-end-293\"\u003e\u003cspan\u003e \u003c\/span\u003e7,5 V CC\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan class=\"citation-292\"\u003e\u003c\/span\u003e\u003cstrong\u003eFrequência de Entrada:\u003c\/strong\u003e\u003cspan class=\"citation-292 citation-end-292\"\u003e\u003cspan\u003e \u003c\/span\u003e1000 Hz (Máx.)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eLargura de Pulso de Entrada:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u0026gt; 500 µs (Ligado ou Desligado)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTempos de Filtro Selecionáveis:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e1 ms, 2 ms, 3 ms, 5 ms, 9 ms, 17 ms ou 33 ms\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIndicadores:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e* 16 Amarelos (Status)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e16 Vermelhos (Falha\/Fio Solto\/Curto-circuito)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan class=\"citation-291 citation-end-291\"\u003e1 Verde (Alimentação do Módulo)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan class=\"citation-290\"\u003e\u003c\/span\u003e\u003cstrong\u003eDispersão de Potência:\u003c\/strong\u003e\u003cspan class=\"citation-290 citation-end-290\"\u003e\u003cspan\u003e \u003c\/span\u003e2,8 Watts\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan class=\"citation-289\"\u003e\u003c\/span\u003e\u003cstrong\u003eDispersão Térmica:\u003c\/strong\u003e\u003cspan class=\"citation-289 citation-end-289\"\u003e\u003cspan\u003e \u003c\/span\u003e9,6 BTU\/h (Máx.)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePeso Físico:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e0,37 kg (0,81 lbs)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eDiagnóstico NAMUR e Detecção de Falhas\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan class=\"citation-288\"\u003eA característica definidora do\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cstrong\u003e1797-IBN16\u003c\/strong\u003e\u003cspan class=\"citation-288 citation-end-288\"\u003e\u003cspan\u003e \u003c\/span\u003eé sua conformidade com o padrão de sensores NAMUR.\u003csup class=\"superscript\"\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eIsso permite que o módulo diferencie quatro estados distintos da linha:\u003c\/p\u003e\n\u003col class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDESLIGADO:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEstado normal onde a corrente está entre 1,2 mA e 2,1 mA.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eLIGADO:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEstado normal onde a corrente está acima de 2,1 mA.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCurto-circuito:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDetectado quando a resistência do circuito cai muito (corrente \u0026gt; 6 mA).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCircuito Aberto (Fio Solto):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDetectado quando a resistência do circuito está muito alta (corrente \u0026lt; 0,15 mA).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cspan class=\"citation-287 citation-end-287\"\u003eSe uma falha for detectada, o LED vermelho correspondente acende, e um bit de diagnóstico é enviado ao controlador Logix, permitindo a identificação imediata de problemas na fiação de campo sem necessidade de diagnóstico manual.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eInstalação e Fiação em Áreas Perigosas\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan class=\"citation-286\"\u003eO\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cstrong\u003e1797-IBN16\u003c\/strong\u003e\u003cspan class=\"citation-286\"\u003e\u003cspan\u003e \u003c\/span\u003edeve ser usado com uma base de terminais FLEX Ex específica, seja a\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cstrong\u003e1797-TB3\u003c\/strong\u003e\u003cspan class=\"citation-286\"\u003e\u003cspan\u003e \u003c\/span\u003e(parafuso) ou a\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cstrong\u003e1797-TB3S\u003c\/strong\u003e\u003cspan class=\"citation-286 citation-end-286\"\u003e\u003cspan\u003e \u003c\/span\u003e(mola).\u003csup class=\"superscript\"\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eComo este é um módulo intrinsecamente seguro, ele deve ser instalado em um ambiente protegido (como um invólucro NEMA 4X) e alimentado por uma fonte de alimentação IS aprovada da série 1797-PS. O pessoal de manutenção pode realizar com segurança a \"Remoção e Inserção Sob Tensão\" (RIUP) mesmo em áreas perigosas, desde que o sistema tenha sido projetado seguindo os parâmetros específicos da entidade FLEX Ex.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003ePerguntas Técnicas Frequentes\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePosso usar interruptores de limite padrão de \"contato seco\" com este módulo?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSim, mas para manter os diagnósticos de monitoramento da linha (circuito aberto\/curto-circuito), você deve instalar dois resistores no interruptor: um em série e outro em paralelo. Isso simula a impedância de um sensor NAMUR.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQual é o comprimento máximo do cabo para sensores conectados ao 1797-IBN16?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA distância é limitada principalmente pela capacitância e indutância do cabo para manter a segurança intrínseca. Geralmente, distâncias de até 300 metros são alcançáveis com cabo instrumento padrão 12 AWG (4\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"math-inline\"\u003e$mm^2$\u003c\/span\u003e), mas um cálculo formal da entidade IS deve ser realizado.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEste módulo requer uma barreira externa?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNão. O\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1797-IBN16\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eé um \"aparelho associado\" que contém seu próprio circuito limitador IS interno. Ele foi projetado para ser a barreira entre o backplane da área segura e os sensores de campo da área perigosa.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52457813410101,"sku":"1797-IBN16","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/1797-IBN16.jpg?v=1773993446","url":"https:\/\/www.5gplc.com\/pt\/products\/1797-ibn16-allen-bradley-16-point-namur-intrinsically-safe-input-module","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}