AI820 babban aiki ne, nau'in shigarwar analog na daban-daban daban-daban, wani ɓangare na dangin kayan aikin ABB Ability ™ System 800xA®, wanda aka tsara don siginar madaidaicin siginar a cikin sarrafa kansa na masana'antu da tsarin sarrafawa. Wannan tsarin yana ba da cikakkun tashoshi 4 keɓantacce na shigar da shigarwar. Kowace tashar za a iya daidaita shi da kansa azaman shigarwar halin yanzu ko ƙarfin lantarki, yana tallafawa nau'ikan siginar siginar masana'antu daban-daban ciki har da ± 20 mA, 4… 20 mA, ± 10 V, 2… 10 V, da sauransu, yana ba da ƙarfi mai ƙarfi da sassauci.
AI820 tana amfani da ƙirar shigarwa ta bambanta, yadda ya kamata yana murkushe tsangwama ta hanyar gama gari da tabbatar da daidaiton siginar siginar da kwanciyar hankali a cikin mahallin masana'antu masu tsauri. Samfurin ya ƙunshi babban madaidaicin analog-zuwa-dijital mai canzawa tare da ƙuduri 14-bit tare da alamar alamar. Haɗe tare da ƙarancin zafin jiki da ƙaƙƙarfan rigakafin amo, ya dace da aikace-aikacen buƙatu daban-daban kamar sarrafa tsari, tsarin sa ido, da shigar da bayanai.
Hakanan tsarin yana haɗa rarraba wutar lantarki don masu watsa wayoyi biyu na waje. Lokacin da aka yi amfani da su tare da Extended Module Termination Units (MTUs), yana sauƙaƙa wayan filin kuma yana rage rikitaccen haɗin tsarin. An tsara duk tashoshi tare da keɓewar rukuni, tabbatar da amincin sigina da amincin tsarin.
2. Key Features da Amfanin
| Siffar |
Siffar |
| Tallafin Nau'in Sigina da yawa |
Yana goyan bayan abubuwan shigarwa na halin yanzu (-20…+20 mA, 0…20 mA, 4…20 mA) da ƙarfin lantarki (-10…+10 V, 0…10 V, 2…10 V, -5…+5 V, 0…5 V, 1… |
| Abubuwan Shiga Banbancin & Babban Keɓewa |
4 tashoshi na shigarwa daban-daban, duk tashoshi a cikin rukuni an keɓe su daga ƙasa. Ƙimar wutar lantarki mai ƙididdigewa: 50 V. Babban Ƙimar Ƙimar Ƙimar Ƙirar (CMRR> 80 dB). |
| Babban Daidaito & Ƙaddamarwa |
14-bit ƙuduri da alamar bit. Jimlar kuskure ≤ 0.1%. Matsakaicin zafin jiki (Yanzu: 50 ppm/°C, Wutar lantarki: 70 ppm/°C). |
| Ingantattun Hanyoyin Kariya |
Resistors shunt shigarwa suna jure haɗin haɗari har zuwa 30 V DC. 250 Ω resistors na hankali na yanzu suna da ƙarfin juzu'i na 5 W nan take don kare da'irar shigarwa. |
| Daidaituwar Sadarwar HART |
Da'irar shigarwa na iya ɗaukar siginar sadarwa na HART, tana tallafawa haɗin kai tare da kayan aiki masu wayo. |
| Samar da wutar lantarki ta waje |
Tsarin na iya rarraba wutar lantarki 24 V DC zuwa masu watsa wayoyi biyu na waje ta hanyar MTU, sauƙaƙe wayoyi. |
| Saurin Amsa |
Sabunta zagayowar don duk tashoshi 4 <26 ms. Lokacin tashin matatar shigarwa: 40 ms. Dace da saurin aiwatar da siginar siginar. |
| Cikakken Bincike |
Panel na gaba sanye take da F (Fault), R (Run), da W (Gargadi) LEDs. Yana goyan bayan module da saka idanu matakin matakin tashar. |
| Faɗin Dacewar Muhalli |
Ya dace da wurare masu haɗari na Class I Div 2 / Zone 2. Ƙungiyoyin rarraba ruwa da yawa sun tabbatar da su. Yanayin zafin aiki: 0…+55°C. |
| Shigarwa na Modular |
Mai jituwa tare da MTU daban-daban (TU810, TU812, TU814, TU830, TU833). Shigarwa mai sassauƙa mai dacewa da ƙaƙƙarfan shimfidu na majalisar ministoci. |
3. Bayanin Aiki da Zane
3.1 Kanfigareshan Tashar shigarwa
Kowace tashoshi na AI820 za a iya daidaita shi da kansa azaman ƙarfin lantarki ko shigarwa ta halin yanzu ta hanyar wayoyi da saitunan software. Abubuwan shigar da wutar lantarki suna amfani da babban madaidaicin tsari na banbanta don rage tasirin lodi. Ana canza abubuwan shigarwa na yanzu zuwa siginonin wutar lantarki don aunawa ta hanyar madaidaicin 250 Ω na ciki. Samfurin yana goyan bayan girman siginar dijital na HART, yana mai da shi dacewa da tsarin watsa mai wayo.
3.2 Keɓewa da Hayaniyar Kariya
Duk tashoshi 4 an keɓe su ta hanyar lantarki daga ModuleBus kuma ƙasa a matsayin rukuni ɗaya, tare da ƙimar insulation ƙarfin lantarki na 50 V da ƙarfin dielectric na 500 V AC. Matsakaicin ƙin yarda da yanayin gama gari (≥80 dB) da Matsakaicin Ƙimar Yanayin Al'ada (33 dB) suna tabbatar da amincin sigina koda a cikin mahalli tare da tsangwama mai ƙarfi na lantarki.
3.3 Samar da Wutar Lantarki da Rarrabawa
Tsarin yana karɓar ƙarfin 24 V DC daga ModuleBus kuma yana ba da rarraba wutar lantarki don masu watsa wayoyi biyu na waje. Lokacin amfani da Extended MTUs (misali, TU830), ana iya ba da wutar lantarki kai tsaye zuwa kayan aikin filin ba tare da ƙarin tashoshi ba. Layukan samar da wutar lantarki ba su da iyaka na yanzu; Kariyar ta dogara da fis a cikin MTU ko kewayen waje.
3.4 Hanyoyin Kariya
Kariyar Wutar Lantarki: Abubuwan shigarwa na yanzu suna iya jure haɗin haɗari har zuwa 30 V DC. Resistors na hankali na 250 Ω suna da karfin 5 W nan take.
Tacewa da Kwanciyar Hankali: Kowane tashoshi yana sanye take da matattara mai ƙarancin wucewa (LPF) tare da lokacin tashi na 40 ms, yadda ya kamata yana murkushe ƙara mai girma.
Kula da Matsayi: Tsarin ya haɗa da sa ido kan samar da wutar lantarki na ciki da kuma bincikar tashar. Ana nuna kurakurai ta LEDs na gaban panel da ƙararrawar bas ɗin tsarin.
3.5 Waya da Daidaituwar MTU
AI820 ya dace da Rukunin Ƙarshe Module daban-daban, gami da:
TU830/TU833 Extended MTU: Haɗa rarraba wutar lantarki da fuses, yana tallafawa haɗin kai tsaye na kayan aikin waya uku.
TU810/TU814 Karamin MTU: Yana ba da tashoshi don shigarwar wutar lantarki na tsari na 24 V; yana buƙatar rarraba wutar lantarki ta waje.
TU812 Karamin MTU: Yana da haɗin haɗin D-Sub 25-pin, wanda ya dace da aikace-aikacen wayoyi masu yawa.
4. Yanayin Aikace-aikace na al'ada
AI820 ya dace da tsarin sarrafa tsarin masana'antu daban-daban da tsarin sa ido, gami da amma ba'a iyakance ga:
Tsari Canjin Saye: Daidaitaccen auna siginar analog kamar zazzabi, matsa lamba, kwarara, da matakin.
Tsarin Gudanar da Makamashi: Kulawa da rikodin sigogin lantarki kamar ƙarfin lantarki, halin yanzu, da ƙarfi.
Kula da Yanayin Kayan Aiki: Samun sigina daga na'urori masu auna firikwensin inji don girgiza, ƙaura, gudu, da sauransu.
Laboratory and Test Benches: Multi-channel, high-madaidaici tsarin sayan bayanai.
Aikace-aikacen Wuri Mai Haɗari: Ya dace da mahalli da aka tabbatar don Class I Div 2/ Zone 2, kamar masana'antun sinadarai, mai, da gas.
5. Shawarwarin Shigarwa da Kanfigareshan
Zaɓin MTU: Zaɓi nau'in MTU ɗin da ya dace bisa la'akari da rikitarwar wayoyi da buƙatun samar da wutar lantarki.
Grounding da Garkuwa: Ana ba da shawarar yin amfani da igiyoyi masu murɗaɗɗen garkuwa da aiwatar da ƙasa mai maki ɗaya a gefen majalisar don rage tsangwama.
Rarraba Wutar Lantarki: Lokacin da ake kunna masu watsa wayoyi biyu masu yawa, ƙididdige jimlar halin yanzu kuma tabbatar da ƙarfin fuse MTU ya wadatar.
La'akari da Muhalli: A cikin matsanancin zafi ko cunkushe kayan aiki, tabbatar da isasshen zafi don kiyaye ƙirar cikin kewayon zafinsa.
Kanfigareshan Software: Sanya nau'in siginar kowane tasha, kewayon, da sigogin tacewa ta hanyar Tsarin 800xA ko dandamalin mai sarrafawa daidai.
