Yuav ua li cas ntsuas seb lub zog-lub xeev relay yog qhov zoo los yog phem
Kev txheeb xyuas cov tswv yim thiab cov zis pins thiab kev ntsuas ntawm lawv qhov zoo yog feem ntau cim nrog cov lus "ntxiv", "-", thiab "Input" ntawm lub tsev ntawm AC solid-state relays, thaum cov zis kawg tsis muab faib ua qhov zoo. thiab tsis zoo, tab sis qee cov khoom siv tau cim nrog cov lus "LOAD". Rau DC solid-state relays, ob qho tib si cov tswv yim thiab cov khoom tso tawm feem ntau yog cim nrog "ntxiv" thiab "-", thiab qee cov khoom siv kuj raug cim nrog cov lus "IN" (input) thiab "OUT" (tso tawm) los qhia qhov sib txawv. . Thaum siv lub tshuab digital multimeter kom paub qhov txawv ntawm cov tswv yim thiab cov khoom siv tawm, lub diode ntau tuaj yeem siv los ua cov kev xeem rau pem hauv ntej thiab thim rov qab ntawm plaub tus pins. Ntawm lawv, nws yog qhov tseeb tias tus nqi hluav taws xob nruab nrab ntawm ob lub pins ua raws li cov cai ntawm kev coj mus rau pem hauv ntej thiab rov qab txiav tawm, uas yog, "1.3-1.6V" tshwm sim thaum ntsuas pem hauv ntej, thiab "1" yog tso tawm kom pom thaum rov qab sim.
Raws li qhov no, nws tuaj yeem txiav txim siab tias ob tus pins no yog cov khoom siv nkag, thiab thaum ntsuas tom ntej, qhov ntsuas ntawm "1.3-1.6V" tshwm sim. Cov hlau lead liab txuas nrog qhov zoo electrode, thaum cov hlau lead dub txuas nrog qhov tsis zoo electrode. Rau DC solid-state relays, thaum pom cov tswv yim tawm tswv yim, qhov zoo thiab qhov tsis zoo ntawm cov khoom siv hluav taws xob feem ntau yog qhov sib txawv rau ib leeg kab rov tav. Nws yuav tsum tau taw qhia tias qee qhov DC solid-state relays muaj kev tiv thaiv diodes ntawm lawv cov khoom siv hluav taws xob. Cov ncej zoo ntawm lub raj tiv thaiv yog txuas nrog tus ncej tsis zoo ntawm cov khoom siv-xeev diode, thaum cov ncej tsis zoo ntawm cov raj tiv thaiv txuas nrog rau tus ncej zoo ntawm cov khoom-state relay. Thaum kuaj, nws yog ib qho tseem ceeb kom paub qhov txawv kom raug.
Kev kuaj pom piv txwv: Cov cuab yeej kuaj xyuas yog JGTIFA hom DC solid-state relay. Nws cov zis davhlau ya nyob twg yog txuas nrog ib tug tiv thaiv diode nyob rau hauv parallel. Rau qhov yooj yim ntawm kev piav qhia, sau cov plaub tus pins ntawm lub cuab yeej ua ①, ②, ③, thiab ④. Thaum kuaj, thawj qhov sib txawv ntawm ob tus pins ntawm qhov kawg ntawm kev nkag. Siv DT890Digital multimeter diode ntau yam, ua kev ntsuas rau pem hauv ntej thiab rov qab ntawm ①, ②, ③, thiab ④. Los ntawm cov ntaub ntawv xeem, nws tuaj yeem pom tau tias thaum lub xov tooj liab txuas nrog tus pin ① thiab qhov kev sojntsuam dub txuas nrog tus pin ②, lub ntsuas ntsuas pom tus nqi ntawm 1381 (1.381V). Thaum sib pauv kev sojntsuam rau kev ntsuas, qhov ntsuas pom muaj lub cim hla ntawm "1"; Thaum qhov kev sojntsuam liab txuas nrog tus pin ④ thiab qhov kev sojntsuam dub txuas nrog tus pin ③, qhov ntsuas tau qhia tus nqi ntawm 543 (0.543V). Thaum sib pauv cov kev sojntsuam rau kev ntsuas, lub ntsuas ntsuas pom cov cim overflow "1"; Hauv lwm lub xeev kev xeem, qhov ntsuas tau qhia txog cov cim "1".
Nws tsis yog qhov nyuaj los kos cov lus xaus los ntawm qhov no: ① thiab ② pins yog DC input terminals ntawm cov khoom kuaj, ① pins yog tus ncej zoo, ② pins yog tus ncej tsis zoo, thiab "1.381V" yog lub hauv ntej voltage poob ntawm sab hauv lub teeb-emitting diode ntawm solid-state relay; ③ thiab ④ Pin yog lub DC tso zis davhlau ya nyob twg, tus pin ③ yog tus ncej zoo, tus pin ④ yog tus ncej tsis zoo, thiab "0.543V" yog qhov hluav taws xob rau pem hauv ntej ntawm cov khoom tiv thaiv diode txuas nrog tib lub sijhawm rau qhov tso zis davhlau ya nyob twg ntawm lub solid-state relay. Nco ntsoov tias rau cov khoom siv hauv xeev tsis muaj kev tiv thaiv diodes ntawm qhov kawg tso zis, txawm li cas los xij cov kev sojntsuam raug pauv los ntsuas tus pins ③ thiab ④, qhov ntsuas yuav tso tawm cov cim hla "1". Thaum ntsuas lub teeb-emitting diodes ntawm solid-state relays siv cov qauv sib txawv ntawm digital multimeter, qee cov twj paj nruag tsuas tuaj yeem nyem lub sijhawm nyeem ntawv, thiab tom qab ntawd tso tawm cov cim "1". Hauv qhov no, qhov kev sojntsuam tuaj yeem rov sib pauv rau ntau qhov kev ntsuas kom txog thaum qhov kev xeem tiav.
2. Txheeb xyuas lub peev xwm thauj khoom (1) Siv lub diode ntau ntawm DT899A digital multimeter, ua ntej ntsuas cov lus qhia rau pem hauv ntej thiab thim rov qab ntawm tus pins ① thiab ②, thiab lub ntsuas ntsuas pom cov cim overflow "1"; Ua kev ntsuas rau pem hauv ntej thiab rov qab ntawm tus pins ③ thiab ④. Thaum lub xov tooj liab txuas nrog tus pin ③ thiab qhov kev sojntsuam dub txuas nrog tus pin ④, qhov ntsuas ntsuas 1524 (1.524V). Thaum qhov kev sojntsuam tau hloov pauv rau kev ntsuas, lub ntsuas ntsuas pom lub cim hla "1", qhia tias tus pins ③ thiab ④ yog lub davhlau ya nyob twg input, pins ③ yog tus ncej zoo, thiab pins ④ yog tus ncej tsis zoo. Cov pins ① thiab ② yog AC tso zis terminals ntawm cov cuab yeej kuaj. (2) Siv DC5V stabilized fais fab mov, teeb tsa DT890A digital multimeter rau 2k Ω tsis kam ntau los ntsuas qhov kev tawm tsam ntawm lub davhlau ya nyob twg. Tom qab kaw thiab siv hluav taws xob ntawm S1, qhov ntsuas qhov ntsuas tsis zoo yog 1.343k Ω, qhia tias lub thyristor sab hauv yog ua thiab cov load tuaj yeem txuas rau lub sijhawm no. Thaum S1 raug rho tawm, lub cuab yeej qhia lub cim overflow "1" (tus nqi kuj yog infinite), qhia tias cov cuab yeej kuaj tau raug muab tua thiab lub load tuaj yeem raug txiav tawm ntawm lub sijhawm no. Nco ntsoov tias nyob rau hauv lub xeev tsis kam qhov tseem ceeb ntawm cov ntsuas cov zis terminals sib txawv nyob ntawm seb tus qauv ntawm lub solid-state relay raug kuaj, nrog rau ntau yam ntawm cov nqi xws li los ntawm ob peb teev ntawm ohms mus rau ntau txhiab ohms. Lub xeev tsis kam ntawm cov zis davhlau ya nyob twg muaj feem xyuam nrog cov tswv yim tam sim no IS. Nyob rau hauv qhov ntau ntawm 10-20mA, qhov loj dua qhov input tam sim no IS, qhov me me ntawm lub xeev tsis kam. Qhov loj ntawm IS tus nqi yog nyob ntawm qhov loj ntawm DC voltage thov rau lub input davhlau ya nyob twg, tab sis cov input voltage thov yuav tsum tsis txhob tshaj qhov ntsuas input voltage tus nqi ntawm cov khoom kuaj. Tsis tas li ntawd, yog hais tias lub polarity ntawm cov input DC voltage yog thim rov qab, lub solid-state relay tsis tuaj yeem ua haujlwm zoo. Cov ntaub ntawv ntsig txog: Yuav ua li cas siv digital multimeter los ntsuas qhov zoo ntawm cov khoom siv hauv lub xeev relays
1. Ntsuas qhov kev tiv thaiv kev tiv thaiv siv qhov kev tiv thaiv ntau yam ntawm multimeter. Ntsuas qhov tsis kam ntawm qhov kev sib txuas ib txwm kaw thiab qhov taw tes txav mus, thiab tus nqi kuj yuav tsum yog 0; Qhov kev tawm tsam ntawm qhov ib txwm qhib kev sib cuag thiab qhov txav taw tes yog infinite. Los ntawm qhov no, nws tuaj yeem paub qhov txawv uas yog ib txwm kaw kev sib cuag thiab qhov ntawd yog ib txwm qhib kev sib cuag.
2. Qhov kev tiv thaiv ntawm lub kauj tuaj yeem ntsuas tau siv lub ntsuas universal R × Ntsuas qhov kev tiv thaiv ntawm cov coil relay ntawm 10 Ω los txiav txim seb puas muaj qhov qhib Circuit Court hauv lub kauj.
3. Ntsuas qhov rub-hauv qhov hluav taws xob thiab rub-hauv tam sim no txhawm rau nrhiav kev hloov kho lub zog hluav taws xob thiab ammeter, nkag mus rau ib txheej ntawm qhov hluav taws xob mus rau relay, thiab txuas lub ammeter nyob rau hauv cov khoom siv hluav taws xob rau kev saib xyuas. Maj mam nce lub hwj chim mov voltage, thiab thaum koj hnov lub relay kaw suab, nco ntsoov kaw voltage thiab tam sim no. Rau qhov raug, koj tuaj yeem sim ntau zaus kom pom tus nqi nruab nrab.
4. Kev ntsuas qhov tso tawm voltage thiab tso tawm tam sim no kuj txuas rau kev sim raws li tau hais los saum toj no. Tom qab rub lub relay, maj mam txo cov khoom siv hluav taws xob. Thaum lub relay tso tawm dua, sau qhov voltage thiab tam sim no, thiab sim ntau zaus kom tau txais qhov nruab nrab tso tawm voltage thiab tam sim no. Feem ntau, qhov tso tawm qhov hluav taws xob ntawm lub relay yog kwv yees li 10-50 feem pua ntawm qhov hluav taws xob rub tawm. Yog tias qhov hluav taws xob tso tawm tsawg dhau (tsawg dua 1/10 ntawm qhov hluav taws xob rub-hauv), nws tsis tuaj yeem siv ib txwm, uas ua rau muaj kev hem thawj rau kev ruaj ntseg ntawm Circuit Court thiab ua rau nws tsis tuaj yeem ua haujlwm.
