ABB DO890 babban abin dogaro ne, Tsarin fitarwa na dijital na Intrinsically Safe (IS), musamman an tsara shi don tsarin rarrabawar ABB Ability™ System 800xA®. Ana amfani da wannan tsarin da farko don samar da amintattun siginonin sarrafawa masu aminci zuwa fidda na'urori masu aiki a cikin buƙatun yanayin masana'antu, musamman a wurare masu haɗari inda yanayin fashewar na iya kasancewa. Babban falsafar ƙira ta tana ba da haɗin kai kai tsaye da tuƙi na na'urorin filin da ke cikin wurare masu haɗari ba tare da buƙatar ƙarin shingen aminci na waje ko na'urorin kariya ba. Wannan yana sauƙaƙa ƙirar tsarin sosai, yana rage shigarwa da farashin kulawa, kuma yana haɓaka amincin tsarin gabaɗaya.
Tsarin DO890 yana haɗa manyan hanyoyin kariya masu aminci a cikin kowace tashar fitarwa, tare da dacewa da ƙa'idodin kariyar fashewar ƙasa (kamar IECEx, ATEX, da sauransu). Wannan yana tabbatar da cewa fitarwar makamashin lantarki a ƙarƙashin aiki na yau da kullun ko ƙayyadaddun yanayin kuskure bai isa ya kunna takamaiman yanayi mai fashewa ba. Wannan ya sa ya zama kyakkyawan zaɓi don Tsarin Instrumented Safety Instrumented (SIS) da tsarin sarrafa tsari a cikin masana'antun da suka haɗa da abubuwa masu ƙonewa da fashewa, kamar mai da gas, sinadarai, magunguna, da dandamali na ketare.
A matsayin wani ɓangare na jerin S800 I/O, DO890 ya gaji kyawawan halaye na babban yawa, daidaitawa, da cikakken keɓewar wannan jerin. Yana sadarwa tare da babban mai sarrafawa (misali, AC 800M) ta hanyar ModuleBus kuma yana haɗawa cikin tsarin gine-ginen 800xA ba tare da ɓata lokaci ba, yana ba da damar ingantaccen musayar bayanai da haɗin kai da tsarin injiniya.
2. Core Design da Key Features
1. Tsare Tsare Tsare Tsare
Kariyar da aka Gina: Kowace tashar fitarwa tana haɗa ƙwararrun abubuwan kariya masu aminci (kamar ƙayyadaddun ƙayyadaddun halin yanzu da da'irar ƙarfin lantarki), kawar da buƙatun shingen aminci na waje mai tsada da cinye sarari tsakanin ma'aikatar kulawa da na'urorin filin.
Haɗin kai tsaye zuwa Wuri Mai Haɗari: Yana ba da damar na'urorin filin da ke cikin wurare masu haɗari (Zone 0/1 ko Zone 1/21, dangane da takaddun shaida), kamar bawul ɗin solenoid, masu sautin ƙararrawa, da fitilun nuni, don haɗa kai tsaye ta hanyar kebul masu sauƙi biyu zuwa ƙirar DO890 da aka shigar a cikin amintaccen wuri.
Aiwatar da Faɗi: Yana goyan bayan duka Ex (kariyar fashewa) da aikace-aikacen da ba na Ex ba ta hanyar haɗawa tare da raka'a tashoshi daban-daban (TU890 don aikace-aikacen Ex, TU891 don aikace-aikacen da ba Ex) don saduwa da buƙatun yanayi daban-daban.
2. Ƙarfin Ƙarfi Mai Ƙarfi
Ƙayyadaddun fitarwa: Kowane tashoshi yana ba da ingantaccen fitarwa na 11V DC, 40mA, wanda aka inganta don tuki ƙananan na'urorin filin.
Daidaita Load: Nau'i na yau da kullun shine 300 ohms, yana da ikon tuƙi da dogaron Ex-certified solenoid bawul, ƙararrawa, da fitilun nuna alama. Nau'in siginar sa na 'Solenoid Driver' yana nuna cewa halayen fitarwar sa sun dace musamman don tuki kayan aiki.
3. Cikakken Binciken Tashoshi da Kariya
Gano Buɗewa da Gajeren Wuta: Ana iya saita kowane tashoshi da kansa don buɗe da'irar (warkewar waya) da gajeriyar kewayawa (waya-zuwa-waya ko waya-zuwa ƙasa). Bayan gano kuskure, tsarin nan da nan ya ba da rahotonsa ga tsarin kuma ya nuna shi akan alamar matsayin tashar a gaban kwamitin, yana ba da damar ganowa da kiyayewa cikin sauri.
Alamar Matsayin Tashoshi: Kowane tashoshi yana sanye da alamar LED mai zaman kanta, yana ba da nuni na ainihin lokacin fitarwa (kunnawa / kashe) da matsayi mara kyau (na al'ada/kuskure), yana ba da ingantaccen bincike na gida.
4. Kyakkyawan Ayyukan Ware Wutar Lantarki
Cikakkun Tashoshi: Duk tashoshi huɗu na fitarwa sun keɓanta da wutar lantarki (Galvanic Isolation) daga juna. Wannan yana nufin kuskure akan kowane tashoshi ɗaya (misali, overvoltage, gajeriyar kewayawa) ba zai shafi aikin yau da kullun na sauran tashoshi ba, inganta ingantaccen tsarin aminci da samuwa.
Keɓewar Matsayin Tsari: Duk tashoshi kuma an keɓe su ta hanyar lantarki daga bas ɗin sadarwa na ModuleBus da na'urar samar da wutar lantarki. Wannan zane yana hana tsangwama na madauki na ƙasa, magudanar ruwa da ke haifar da yuwuwar bambance-bambance, da kuma wuce gona da iri waɗanda za a iya gabatar da su daga gefen filin daga tasirin cibiyar sadarwa na tsarin sarrafawa, tabbatar da kwanciyar hankali.
5. Samar da wutar lantarki mai sassauƙa da haɗin kai
Samar da Wutar Lantarki: Ana canza ƙarfin aiki don matakan fitarwa na module daga wadatar 24V DC da aka bayar akan tashoshi na samar da wutar lantarki.
Sauƙaƙe Waya: Lokacin da aka yi amfani da shi tare da TU890/TU891 Compact MTU (Micro Terminal Unit), yana ba da damar haɗin waya biyu zuwa na'urorin filin ba tare da ƙarin matsakaicin matsakaici ba, rage wuraren haɗin kai da yuwuwar tushen gazawar, da adana sararin shigarwa da lokaci.
6. Haɗin Tsarin Tsari mara kyau
Haɗin 800xA: A matsayin wani ɓangare na tsarin 800xA, DO890 za a iya daidaita shi daidai ta hanyar Ƙwararrun Ƙwararrun Ƙwararru don daidaitawar hardware da saitin sigina.
Taimakon DTM: Yana goyan bayan Manajan Nau'in Na'ura (DTM), yana ba da izini don daidaitawa na ci gaba, bincike, da ayyukan kiyayewa a cikin kayan aikin injiniya masu goyan bayan fasahar FDT/FRAME (kamar Gudanar da Na'urar 800xA), yana ba da damar sarrafa na'ura mai hankali.
3. Yanayin aikace-aikace
Yin amfani da halayen aminci na ciki da ingantaccen ƙarfin tuƙi, ana amfani da tsarin DO890 don sarrafa na'urori a cikin wurare masu haɗari a cikin yanayin masana'antu masu zuwa:
Sarrafa Valve Process: Tuƙi Ex-certified pneumatic ko na'ura mai aiki da karfin ruwa bawuloli da aka yi amfani da shi don keɓe ko tsari a cikin sinadarai, mai, da bututun gas.
Tsare-tsaren Tsaro & Ƙararrawa: Kunna masu ƙararrawa mai tabbatar da fashewa a cikin wurare masu haɗari don ba da faɗakarwa da ji da gani a cikin gaggawa.
Alamar Matsayi: Haskaka fitilu masu tabbatar da fashewa don nuna matsayin kayan aiki daga nesa (misali, gudu, tsayawa, kuskure).
Wuta & Gas / Rufe Gaggawa (ESD): Yin aiki azaman ɓangare na Tsarin Kayan Aikin Tsaro don haifar da ayyukan kayan aikin da suka danganci aminci.
Gudanar da Load na Gabaɗaya: Hakanan za'a iya amfani da shi azaman babban maƙasudin maƙasudin ƙarancin wutar lantarki na DC a cikin wuraren da ba masu haɗari ko lokacin amfani da TU891.
Tsarinta na tashoshi 4 yana ba da sassauci mai kyau don sarrafa ƙananan na'urori masu yawa ko a matsayin wani ɓangare na daidaitawa mara kyau.
4. Shigarwa, Kanfigareshan, da Diagnostics
Shigarwa
An shigar da tsarin DO890 akan madaidaicin rak a cikin tashar S800 I/O. Ana haɗa igiyoyin filayen ta hanyar haɗin gaba ko, zai fi dacewa, TU890/TU891 Compact MTU. Yin amfani da TU890/TU891 yana kawar da buƙatar ƙarin tubalan tashoshi, yana ba da damar haɗin kai da aminci, musamman dacewa da shigarwa mai yawa.
Kanfigareshan
Tsarin ƙirar ƙirar ana yin su ne ta hanyar ABB Control Builder Professional injiniyan injiniyanci:
Ma'auni na Module: Saita sigogi na duniya, kamar yanayin kulawa da wutar lantarki, don saka idanu akan lafiyar wadatar 24V.
Ma'aunin Tashoshi: Tsara kowane tashoshi kai tsaye:
Kunna/A kashe: Ana iya kashe tashoshi da ba a yi amfani da su ba.
Ikon OSP & Ƙimar: Ana iya amfani da shi don saita ƙimar amincin fitarwa (misali, tilasta fitarwa zuwa ƙayyadaddun yanayi akan kuskure; koma zuwa sabon littafin jagora don takamaiman ayyuka).
Kula da Tashoshi: Kunna ko saita gano buɗe/gajeren kewayawa.
Lokacin da aka haɗa shi zuwa mai sarrafa AC 800M, ana yin duk daidaitawa ta hanyar Mai Gina Sarrafa; idan ana sarrafa shi azaman na'ura ta wasu hanyoyi, ana iya amfani da DTM ɗinta don daidaitawa a cikin aikace-aikacen firam ɗin FDT.
Bincike da Kulawa
Ganewa na lokaci-lokaci: Modulun yana ci gaba da yin bincike na ciki da bincikar lodin tashoshi (bude/gajeren kewayawa).
Bayanin Matsayi: Matsayin tashar (Ok/Kuskure) ana ba da rahoto a cikin ainihin-lokaci zuwa tsarin sarrafawa ta hanyar Channel Status Byte, yana ba masu aiki damar saka idanu akan Interface na Mutum-Machine (HMI).
Nunawar Gida: LED ɗin kowane tashoshi akan ɓangaren gaba na module yana ba da mafi kyawun hanyoyin kai tsaye don gano kuskuren gida.
Binciken DTM: DTM yana ba da damar samun ƙarin cikakkun bayanan na'urar, bayanan laifuffuka na tarihi, da matsayin kiwon lafiya, sauƙaƙe kiyaye kariya da binciken kuskure.
5. Takaitacciyar Fa'idodi
Aminci Mafi Girma: Kariyar aminci mai gina jiki shine ma'aunin zinare don haɗawa da na'urorin yanki masu haɗari, haɓaka matakan amincin shuka.
Mai Tasiri: Yana kawar da shingen aminci na waje, rage ƙimar kayan masarufi sosai, buƙatun sararin majalisar ministoci, da ƙoƙarin shigar da wayoyi.
Babban Dogara: Cikakken ƙirar keɓewar tashar yana hana yaɗuwar kuskure yadda ya kamata. Ayyuka masu ƙarfi masu ƙarfi suna tabbatar da gano kuskure da kulawa da sauri, yana haɓaka samuwar tsarin.
Kyakkyawan Haɗin Tsarin Tsarin: A matsayin ɗan ƙasa na yanayin yanayin yanayin 800xA, yana ba da damar sarrafa tsarin rayuwa mara kyau daga aikin injiniya, daidaitawa, da ƙaddamarwa don aiki da kiyayewa.
Sassaucin aikace-aikacen: Ya dace da wuraren Ex da waɗanda ba Ex, masu jituwa da na'urorin filin daban-daban. Tsarin tashoshi huɗu yana saduwa da buƙatun sarrafawa iri-iri.
Sauƙaƙan Kulawa: Bayyanar nuni na gida, iyawar bincike mai nisa, da tallafin kayan aikin DTM suna sa kiyayewa da magance matsalar yau da kullun cikin sauri da inganci.
