U-Emerson wazisa iindibano zeevalvu eziqinisekiswe yi-SIL ezi-3

U-Emerson uqalise iindibano zokuqala zeevalvu ezihlangabezana neemfuno zenkqubo yoyilo lweNqanaba loBulungisa boKhuseleko (i-SIL) 3 ngokomgangatho we-IEC 61508 weKhomishini ye-Electrotechnical yeHlabathi. Ezi FisherUkuzahlula kwiDijithaliIzisombululo zento yokugqibela zibonelela ngeemfuno zabathengi beevalvu zokuvala kwizicelo zenkqubo yokhuseleko olubalulekileyo (i-SIS).

Ngaphandle kwesi sisombululo, abasebenzisi kufuneka bachaze zonke izinto zevalvu nganye nganye, bathenge nganye nganye, baze bayidibanise ibe yinto epheleleyo esebenzayo. Nokuba la manyathelo enziwe ngokuchanekileyo, olu hlobo lokuhlanganiswa ngokwezifiso alusayi kubonelela ngazo zonke izibonelelo zeDigital Isolation assembly.

Ukwakha ivalvu yokuvala ukhuseleko ngumsebenzi onzima. Iimeko zenkqubo eziqhelekileyo nezingalunganga kufuneka zihlolwe ngononophelo kwaye ziqondwe xa kukhethwa iinxalenye zevalvu kunye ne-actuator. Ukongeza, indibaniselwano efanelekileyo yee-solenoids, iibrakethi, ii-couplings kunye nezinye izixhobo ezibalulekileyo kufuneka zichazwe kwaye zihambelane ngononophelo nevalvu ekhethiweyo. Elinye lala macandelo kufuneka lisebenze ngokwahlukeneyo kwaye lihambelane ukuze lisebenze.

U-Emerson ujongana nale micimbi kunye neminye ngokubonelela ngendibano yevalvu yokuvala iDigital Isolation eyakhiwe ngobunjineli, eyenzelwe inkqubo nganye ethile. Izinto ezahlukeneyo zikhethwe ngokukodwa ukwanelisa iimfuno zesicelo. Yonke indibano ithengiswa njengeyunithi evavanyiweyo neqinisekisiweyo ngokupheleleyo, enenombolo enye ye-serial kunye namaxwebhu ahambelanayo achaza iinkcukacha zenxalenye nganye yendibano.

Ngenxa yokuba indibano yakhiwe njengesisombululo esipheleleyo kwizibonelelo zase-Emerson, iqhayisa ngesantya esiphucukileyo kakhulu sokungaphumeleli xa ifunwa (PFD). Kwezinye iimeko, izinga lokungaphumeleli kwendibano liya kuba ngaphantsi nge-50% kunendibaniselwano yezixhobo ezifanayo zevalvu ezithengwe ngokwahlukeneyo kwaye zahlanganiswa ngumsebenzisi wokugqibela.