Okuteeka signal isolators ku kabineti ezifuga PLC

Mu kisaawe ky’okukola otoma mu makolero, kabineti ezifuga PLC (Programmable Logic Controller) zikola kinene nnyo, ezivunaanyizibwa ku kufuna obubonero okuva mu sensa n’ebikozesebwa eby’enjawulo, n’okutuuka ku kufuga okutuufu okw’enkola y’okufulumya okuyita mu mirimu gya logic egy’omunda. Naye mu nkola entuufu, kabineti ezifuga PLC zitera okwolekagana n’embeera ez’enjawulo enzibu ez’amasannyalaze n’ebizibu by’okutaataaganyizibwa kw’obubonero, ekiyinza okuvaako enkola y’okufuga okukola obubi, okulemererwa enfunda eziwera, n’okutuuka n’okuteeka mu kabi eri obukuumi bw’ebyuma n’abakozi. N’olwekyo, okugattako akabonero akaawuddwamuators to PLC control cabinets kifuuse eky’okugonjoola ekizibu ekya bulijjo.

Emirimu emikulu egy’ebyuma ebyawula siginiini mulimu okuziyiza okutambuza okutaataaganyizibwa kw’amasannyalaze, okukendeeza ku kugwa kw’enkola, n’okuwa okwawula singa wabaawo ebyuma okulemererwa mu kifo, okuziyiza okusaasaana kw’ensobi mu nkola yonna ey’okufuga. Nga tukyusakyusa n’okukyusa obubonero obufunibwa PLC okuyita mu byuma bya semikondokita, oluvannyuma n’obwawula n’okubukyusa nga tukozesa ebyuma ebitegeera amaaso oba magineeti, n’okusembayo okukyusakyusa n’okubikyusa okudda ku siginiini eyasooka oba siginiini ez’enjawulo, enkola eno ekakasa obutebenkevu n’obutuufu bwa siginiini, ate nga era etangira okwonooneka kwa PLC n’okukendeeza ku kukosebwa kwa siginiini eziri mu kifo ku PLC, naddala obubonero obw’okutabula. Okugatta ku ekyo, ebyawula siginiini era bisobola okutuuka ku kukyusa siginiini, gamba ng’okukyusa siginiini okuva mu biyungo bya PT10 okudda mu siginiini za 4-20mA ne ziziyingiza mu nkola za PLC, mu ngeri ennungi okwewala enkaayana wakati w’ensibuko z’amasannyalaze n’amasannyalaze n’okugonjoola ekizibu ky’okutaataaganyizibwa wakati wa loopu n’ebyuma.

Mu nkola ezenjawulo, gamba nga mu layini y’okufulumya ekyuma, okupima n’okufuga bituukibwako okuyita mu PLC, ebikozesebwa mu kukola otoma mu kifo, n’ebikozesebwa mu kifo. PLC eteekebwa mu kabineti efugira esangibwa mita ebikumi ebiwerako okuva mu kifo (ekola ku bbugumu erya bulijjo), era ebikozesebwa mu ngeri ey’obwengula oba thermocouples okuva mu kifo bifulumya obubonero okuyita mu waya okuyingira mu kabineti efugira mu kisenge ekifuga. Mu kiseera kino, siginiini eyingira mu PLC erina okuba eyawuddwamu era eyinza n’okwetaaga okukyusibwa, gamba ng’okwawula 4-20mA n’okugikyusa okudda mu 0-5V nga tonnayingira mu PLC. Ekyuma ekimaliriza okwawula n'okukyusa obubonero bwa thermocouple kiyitibwa "thermocouple signal isolator" oba "thermocouple temperature transmitter". Omulimu gwayo omukulu mulimu okwawula siginiini eyingizibwa ne siginiini efuluma, wamu n’okukyusa siginiini y’omutindo gwa mV eyingizibwa okuva mu thermocouple okudda mu siginiini z’amakolero eza bulijjo (4-20mA, 0-5V, 0-10V).

Mu bufunze, okuteekawo signal isolators kikulu nnyo mu kulongoosa obwesigwa bw’enkola za automatic automation mu makolero, okukendeeza ku miwendo gy’okulemererwa, okukuuma ebyuma bya PLC, n’okulongoosa omutindo gwa signal. Ky’ekimu ku bitundu ebikulu okulaba ng’enkola z’okufuga zikola mu ngeri ennywevu era eyeesigika