Go tsenya di-isolator tsa ditshupo mo dikhabineteng tsa taolo ya PLC

Lefapheng la indasteri jarolla ka ho iketsa, PLC (Programmable Logic Molaoli eo) taolo dikhabinete phetha karolo ea bohlokoa, boikarabelo ba ho amohela matshwao ho tloha disensara tse sa tšoaneng le actuators, le ho finyella taolo e nepahetseng ya tshebetso tlhahiso ka ditshebetso tsa ka hare logic. Leha ho le joalo, ka dikopo tse sebetsang, PLC taolo ya dikhabinete hangata tobana le tikoloho tse sa tšoaneng tse rarahaneng tsa electromagnetic le mathata a tshitiso ya letshwao, e leng se ka lebisang ho tsamaiso ya taolo malfunctions, ho hloleha kgafetsa, 'me esita le ho baka matshosetsi ho thepa le basebetsi polokeho. Ka jalo, go oketsa ka letshwao le le kgaoganengators go PLC taolo ya dikhabinete e fetogile tharabololo e e tlwaelegileng.

Ditiro tse dikgolo tsa di-isolator tsa matshwao di akaretsa go thibela phetiso ya kgoreletso ya motlakase, go fokotsa go diragala ga go palelwa ga tsamaiso, le go tlamela ka go itlhaola mo tiragalong ya go palelwa ga didirisiwa mo lefelong, go thibela go anama ga diphoso mo tsamaisong yotlhe ya taolo. Ka go fetola le go fetola matshwao a a amogetsweng ke PLC ka didiriswa tsa semiconductor, morago ga moo a tlhaole le go a fetola a dirisa didiriswa tsa go utlwa tsa optical kgotsa tsa makenete, mme kwa bofelong a a fetole le go a boela kwa letshwaong la ntlha kgotsa matshwao a a farologaneng, thulaganyo eno e netefatsa botsitso le go nepagala ga letshwao, fa gape e thibela tshenyo e e kgethegileng ya letshwao la PLC- matshwao a tlhakatlhakano. Ho phaella moo, letshwao isolators ka boela finyella letshwao phetolo, tse kang ho fetola matshwao ho tloha PT10 dikgokelo ho 4-20mA matshwao le inputting bona ka dithulaganyo PLC, ka katleho qoba dikgohlano pakeng tsa motlakase le matla mehloli le ho rarolla bothata ba kopanetsweng tshitiso pakeng tsa loops le thepa.

Mo ditirisong tse di rileng, jaaka mo moleng wa tlhagiso wa polante ya tshipi, go lekanya le go laola di fitlhelelwa ka PLC, didirisiwa tsa go itirisa tsa mo lefelong, le di-actuator tsa mo lefelong. PLC e behilwe ka khabinete ya taolo e fumanehang dimithara tse makholo a mmalwa ho tloha sebaka (e sebetsang ka mocheso wa kamore), mme disebediswa tsa ho iketsahalla kapa di-thermocouple ho tswa ho matshwao a dipholo tsa sebaka ka dithapo ho kena khabineteng ya taolo ka phaposing ya taolo. Mo nakong eno, letshwao le le tsenang mo PLC le tshwanetse go kgaoganngwa mme gape le ka tlhoka go fetolwa, jaaka go kgaoganngwa ga 4-20mA le go e fetolela go 0-5V pele ga go tsena mo PLC. Sediriswa se se feleletsang go kgaoganngwa le go fetolwa ga matshwao a thermocouple se bidiwa "setlhaodi sa matshwao a thermocouple" kgotsa "sefetisi sa themperetšha ya thermocouple". Tshebetso ya yona ya mantlha e kenyelletsa ho arola letshwao la ho kenya le letshwao la ho ntsha, hammoho le ho fetola letshwao la boemo ba mV ho tswa ho thermocouple ho ba matshwao a tlwaelehileng a indasteri (4-20mA, 0-5V, 0-10V).

Ka bokhutshwane, go tsenya di-isolator tsa matshwao go botlhokwa thata go tokafatsa go ikanyega ga dithulaganyo tsa go itirisa tsa madirelo, go fokotsa dikelo tsa go palelwa, go sireletsa didirisiwa tsa PLC, le go tokafatsa boleng jwa matshwao. Ke nngwe ya dikarolo tse di botlhokwa go netefatsa gore dithulaganyo tsa taolo di dira ka tsela e e tlhomameng le e e ikanyegang