Kev saib xyuas ntawm PLC cov tswv yim thiab cov khoom siv hluav taws xob rau cov cua hluav taws xob cua sov

Kev saib xyuas ntawm PLC cov tswv yim thiab cov khoom siv hluav taws xob rau cov cua hluav taws xob cua sov

(1) Kev saib xyuas ntawm PLC cov tswv yim thiab cov khoom xaim hluav taws xob

Txhawm rau tiv thaiv kom tsis txhob muaj qhov sib nqus sib nqus induction muaj peev xwm sib txawv los ntawm kev cuam tshuam ntawm cov tswv yim lossis cov khoom siv hluav taws xob hluav taws xob ntawm cov hluav taws xob tsim nyog los ntawm kev ua rau muaj kev phom sij loj rau PLC, thiab thaum cov tsav tsheb tseem ceeb ntawm PLC yog relays thiab DC contactor electromagnetic coils. , daim ntawv thov ntawm xoom hla nruab nrab relay AC-SSR ntawm cov khoom siv tsav tsheb thiab PLC tso zis davhlau ya nyob twg yog qhov ua tau zoo thiab ua tau.

(2) Kev tiv thaiv yuam kev rau kev tawm tswv yim thiab tso tawm cov ntaub ntawv teeb liab

Txhawm rau txo cov kev tawm tswv yim tam sim no ntawm PLC thiab qhov tam sim no ntawm kev thauj khoom sab nraud, feem ntau siv los ntawm cov khoom siv hluav taws xob ntawm cov tswv yim thiab cov zis tawm.

(3) Cov dej ntws tam sim no

Thaum siv DC ob kab controllers xws li qhov sib thooj keyboards thiab photoelectric hloov mus rau cov ntaub ntawv tawm tswv yim rau cov cua hluav taws xob cua sov, yog tias qhov hluav taws xob xau loj, qhov ua haujlwm yuam kev yuav tsum raug txiav txim siab, yog li PLC cov ntaub ntawv tawm tswv yim tsis tuaj yeem muab tua. Nyob rau ntawm no, ib sab resistor tuaj yeem txuas nrog PLC input davhlau ya nyob twg los txo cov input impedance. Thaum siv bidirectional thyristor raws li cov khoom tso tawm, los tiv thaiv cov xau tam sim no thiab lwm yam laj thawj uas yuav ua rau cov khoom tso tawm tsis tuaj yeem tua, ib sab resistor kuj tseem tuaj yeem txuas rau hauv cov khoom ntawm cov zis kawg.

(4) Lub zog hluav taws xob

Thaum lub rooj tsav xwm tswj tau tawm los ua qhov chaw sib cuag, tsis hais seb lub rooj tsav xwm tswj nws tus kheej tuaj yeem tiv thaiv kev cuam tshuam, RC kev zom thiab nqus tau siv rau kev sib txuas lus AC loads, thiab diodes freewheeling yog siv rau DC loads rau zom thiab nqus cov surge voltage los ntawm inductive. loads.

(5) Impulsive tam sim no kom muaj nuj nqis

Thaum lub tshuab cua sov cov chaw tsim khoom siv bidirectional thyristor tso zis modules los tsav cov teeb fluorescent lossis lwm yam khoom siv nrog cov khoom siv hluav taws xob hloov loj, lawv yuav tsum tau txuas PLC cov zis kawg nyob rau tib lub sijhawm nrog lub bypass resistor lossis load hauv series los tswj cov zis module.

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