1715-OB8DE Allen-Bradley na'urar fitar dijital mai maimaituwa

Takaitaccen Bayanin Samfur

Allen-Bradley 1715-OB8DE na’ura ce ta fitar da siginar dijital (digital output module) mai mahimmanci da ke da maki 8, wadda aka ƙera don jerin Bulletin 1715 na redundant I/O. Wannan module ɗin yana bayar da amintattun siginonin fitarwa na 24VDC zuwa na’urorin filin aiki kamar solenoids, relays, da motor starters. Tare da ƙananan nauyi kusan 0.35 kg (kimamin nauyin module), 1715-OB8DE an tsara ta ne don gine-ginen tsarin da ke buƙatar samun samuwa koyaushe (high-availability architectures) inda ba a yarda tsarin ya tsaya ba. Harafin "DE" yana nuna cewa tana da ci-gaba a bangaren diagnostics da kariyar lantarki ta fitarwa, wanda ke tabbatar da cewa ana gano matsala kuma a ware ta kafin ta shafi dabarar sarrafawa gaba ɗaya.

Muhimman Fa’idodin Fasaha

Na’urar 1715-OB8DE an gina ta ne don juriya da daidaito. Tana da galvanic isolation na 500 VDC tsakanin wayoyin bangaren fili da kayan lantarki masu saurin fahimta na bangaren logic, wanda ke hana tashin wutar lantarki lalata controller backplane. Kowanne daga cikin tashoshi 8 na fitarwa na iya ɗaukar kaya har zuwa 500 mA, yana ba da isasshen wuta ga nauyin masana’antu na yau da kullum. Bugu da ƙari, an tsara module ɗin ne don aiki fault-tolerant; idan aka haɗa ta da abokin module mai redundant a cikin tsarin duplex, tana ba da damar canzawa kai tsaye idan ɗaya ya samu matsala (seamless failover) da kuma gyara ko cirewa/cika module (hot-swappable maintenance) ba tare da katse aikin da ke gudana ba.

Ƙayyadaddun Bayanai na Fasaha

Jagorar Shigarwa & Injiniya

Domin samun ingantacciyar sahihancin sigina, ya kamata a yi wa 1715-OB8DE wayoyi da igiyoyin tagulla masu sulke (shielded copper conductors) na 18 zuwa 16 AWG. An tsara module ɗin ne don daidaitaccen daurin DIN rail ta hanyar Bulletin 1715 termination assembly. Yayin shigarwa, tabbatar cewa wutar lantarki ta bangaren fili (field power supply) tana da ƙima akalla 32 VDC don ɗaukar yiwuwar faɗuwar wuta (line drops) a kan dogayen kebul. Matsayin shock na 25 g na module ɗin yana sa ta dace da amfani a wuraren da ake da babbar motsi ta inji, muddin an kulle ta sosai a cikin ramin backplane da aka tanada mata.

Fa’idodin Injiniya

Babbar fa’ida ta 1715-OB8DE ita ce haɗuwa da ita a cikin dandali na I/O mai "High Integrity". Tana ba da cikakkun diagnostics ga kowane tashar, ciki har da gano buɗewar nauyi (open-load) da yanayin gajeren lantarki (short-circuit). Wannan gano matsalar tun kafin ta tsananta yana ba tawagar kiyayewa damar gyara matsalolin wayoyi kafin su haifar da tsayawar aiki (process trips). Bugu da ƙari, ƙaramin dumamar wuta (power dissipation) na 3 Watts mafi yawan lokaci yana ba da damar tara modules da yawa a cikin cabinets na sarrafawa ba tare da buƙatar tsarin sanyaya na tilasta iska na musamman (forced-air cooling systems) ba, wanda ke rage rikitarwa da girman wurin da ake buƙata.

Tambayoyi na Fasaha (FAQs)

Q1: Menene harafin ƙarshe "DE" ke nufi a 1715-OB8DE?
A1: "DE" yana nuna Digital Output da Diagnostics da kuma kariyar lantarki ta fitarwa (Electronically protected outputs), wanda ke ba da ingantacciyar gano matsala idan aka kwatanta da modules na dijital na al’ada.

Q2: Zan iya maye gurbin wannan module ɗin yayin da tsarin yake da wuta?
A2: I, za ka iya. 1715-OB8DE tana goyon bayan cirewa da saka module yayin akwai wuta (Removal and Insertion Under Power – RIUP) a cikin tsarin redundant, wanda ke ba da damar ci gaba da aiki yayin gyaran module.

Q3: Shin akwai kariya ga yin ɗorawa da yawa a kan tashoshi ɗaya-ɗaya?
A3: I, kowanne daga cikin tashoshi 8 yana da kariyar lantarki. Idan yawan ƙarfi (current) da ake ja ya zarce 500 mA sosai, module ɗin za ta ware tashar da abin ya shafa domin kare kayan lantarki na ciki.