Cov Ntsiab Lus Tseem Ceeb
Koj qhov tseem ceeb peb -} theem lub cev muaj zog tsuas yog tuag. Ntau lawm nres. Txhua feeb raug nqi nyiaj.
Lub vaj huam sib luag zoo li qub, tab sis lub tshuab yuav tsis ua haujlwm. Qhov teeb meem yuav yog koj peb {-}}} pege stor- Xeev Relay (SSR). Lub cuab yeej uas ntsiag to hloov fais fab rau koj cov cuab yeej, thiab thaum nws ua tsis tiav, txhua yam nres.
Cov lus qhia no pab saib xyuas cov kws kho txuj ci, cov tshuab hluav taws xob, thiab txhim kho peb {{0} {}- lub xeev relay relay. Peb yuav pib nrog cov hauv paus thiab txav mus rau cov kev daws teeb meem siab. Koj yuav tau txais koj cov txheej txheem khiav nrawm dua thiab nyab xeeb.
Ntawm no yog qhov koj yuav kawm:
Yuav ua li cas rau kev nyab xeeb kaw lub system ua ntej pib ua haujlwm
Yuav ua li cas peb {-} theem SSR ua haujlwm
Ib tug plaub -}}}} qib txheej txheem los nrhiav qhov teeb meem: kev pom, kev tswj, thauj khoom, thiab cov tshev kub
Yuav qhia li cas yog hais tias SSR ua tsis tiav lossis yog lwm yam tsis yog lawm
Kev daws teeb meem ceev rau cov teeb meem sib txawv
Yuav ua li cas tiv thaiv yav dhau los ua tsis tiav nrog kev saib xyuas zoo
Kev Nyab Xeeb Ua Ntej: Tseem Ceeb Tshaj Tawm
Peb {-} theem muaj hluav taws xob yog txaus ntshai. Hluav Taws Xob Hluav Taws Xob, Arc Flash, lossis pib pib tuaj yeem ua rau raug mob hnyav lossis tuag taus. Tsis txhob ua haujlwm nyob rau cov hluav taws xob nyob hauv hluav taws xob yam tsis muaj cov khoom siv cob qhia zoo thiab cov khoom siv kev nyab xeeb.
Ua ntej koj qhib lub vaj huam sib luag lossis kov xaim xaim, ua raws cov kauj ruam kev nyab xeeb no. Koj lub neej nyob ntawm nws.
Lockout / Tagout (Loto) Cov Txheej Txheem
Nrhiav lub ntsiab disconnect uas lub hwj chim rau SSR thiab nws lo kev thauj khoom.
Tig mus rau disconnect mus.
Tso koj tus kheej xauv thiab tag ntawm qhov kev txiav tawm. Qhov no nres lwm tus neeg los ntawm tig hwj chim rov qab thaum koj ua haujlwm.
Siv tus puv rau kev kuaj xyuas rau xoom voltage. Ntsuam xyuas txhua qhov kev sib txuas ntawm SSR cov tswv yim terminals kom paub tseeb tias tsis muaj lub zog tam sim no.
Cov Khoom Siv Tiv Thaiv Tus Kheej (PPE)
Hnav cov hnab looj tes insulated thaum ua haujlwm ze rau cov khoom siv hluav taws xob.
Hnav tsom iav kev nyab xeeb lossis lub ntsej muag shield tiv thaiv arc Flash thiab cov khib nyiab.
Siv cov khau ua haujlwm kom zoo, nyiam dua nrog hluav taws xob kev phom sij (EH) kev ntaus nqi.
To taub
Tshawb xyuas thaj chaw ib ncig ntawm cov hluav taws xob hluav taws xob.
Saib rau dej, noo, lossis plua plav hlau uas tuaj yeem tsim cov xwm txheej txaus ntshai.
Saib rau cov ntaub ntawv hauv cov khoom siv lossis cov cua sov nyob ze.
Ib tug primer ntawm peb -} theem ssrs
Txhawm rau txhim kho peb {{-} theem hloov - Lub Xeev Relay, koj yuav tsum nkag siab tias nws ua haujlwm li cas. Tsis zoo li cov neeg ua haujlwm txhua yam nrog txav chaw, ib qho SSR yog hluav taws xob hauv hluav taws xob. Qhov no ua rau nws sai dua, ntev dua- kav, thiab ntsiag to.
Xav txog nws li hnyav - luag hauj lwm hluav taws xob hloov rau cov khoom siv lag luam. Nws yuav siv sij hawm tswj cov teeb liab me me thiab siv nws hloov ntau dua peb -}}}}}}}}}}}}} paab lossis cov tsav tsheb.
Dab tsi yog peb -} theem SSR?
Ib tug peb {-} theem ssr yog peb ib -}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}} {theem SSRs hauv ib pob. Ntawm no yog li cas nws ua haujlwm:
Cov tswv yim hluav taws xob tau txais lub teeb liab tswj hwm los ntawm PLC, ntsuas kub, lossis lwm yam khoom siv. Lub teeb liab no feem ntau yog tsawg dc voltage (zoo li 4-32VDC) lossis AC voltage (zoo li 90-280vac).
Cov phiaj xwm tawm tswv yim no tig rau sab hauv. Lub teeb hla kev hla kev sib txawv thiab ntaus lub teeb - hosttriconductor. Qhov txuas no (hu ua tus phobocoupler) ua kom muaj qhov qis - voltage tswj cais tawm los ntawm lub siab- voltage Circuit Court.
Lub teeb liab ces ua rau cov zis hloov mus rau Circuit Court. Txhua ntawm peb theem peb siv cov tshuab luam yeeb tshuaj Thaum triggered, cov semiconductors cia hluav taws xob ntws. Thaum tsis yog txhais, lawv thaiv nws.
Xoom -} hla vs. random hloov
Koj tus SSR hloov hom teeb meem rau kev siv thiab kuaj mob. Muaj ob hom tseem ceeb:
Ib xoom -} hla SSR tig rau tsuas yog thaum AC voltage yog nyob rau hauv lossis ze xoom volts. Qhov no txo cov kev cuam tshuam hluav taws xob thiab spikes tam sim no. Nws zoo meej rau kev tawm dag zog zoo li cua sov.
Ib qho Random Hloov SSR tig rau tam sim ntawd thaum nws tau txais lub teeb liab tswj, tsis muaj teeb meem nyob qhov twg ntawm AC WaveForm yog. Cov lus teb ceev no yog xav tau rau inductive thauj tau zoo li cov motors thiab transformers. Siv lub hom tsis yog ua rau muaj teeb meem lossis ua tiav tsis tiav.
Tus Txheej Txheem Kev Ntsuas Hluav Taws Xob
Tsis txhob twv thaum daws teeb meem hluav taws xob. Cov txheej txheem thev naus laus zis pom qhov tseeb ua kom ceev tshaj plaws. Peb yuav siv plaub kauj ruam uas kuaj xyuas txhua qhov ntawm lub system: Kev teeb tsa lub cev, tswj cov teeb liab, thauj cov teeb liab, thiab tswj xyuas kub.
Txoj kev no tiv thaiv koj ntawm hloov SSR zoo thaum qhov teeb meem tiag tiag yog xaim xaim, tus tswj tsis zoo, lossis txias txias.
Kauj ruam 1: Kev Ntsuam Xyuas Kev Pom Zoo
Siv koj qhov kev nkag siab ua ntej siv cov cuab yeej ntsuas. Kev kuaj xyuas kom pom zoo feem ntau qhia txog qhov teeb meem tam sim ntawd. Ua qhov no nrog lub hwj chim tag thiab xauv tawm.
Ua ntej, hnov tus ntxhiab tsw txawv. Hlaws electronics muaj cov ntse, iab uas tsis muaj ntxhiab uas qhia meej ntawm qhov tsis ua haujlwm. Yog tias koj tsw tias qhov no, SSR tau yuav luag yeej tsis tau nyob rau hauv.
Txheeb xyuas SSR rau lub cev puas. Saib rau cov kab nrib pleb, tej daim, lossis melted yas. Cov yeeb yam no hnyav dhau los yog luv -} Circuit kev puas tsuaj.
Saib ntawm SSR, heatsink, thiab cov xaim ze rau cov xim hloov. Xim av lossis tsaus thaj tsam ntawm SSR lub cev lossis cov rwb thaiv hlau pom kev mob ntev heev.
Thaum kawg, maj mam rub rau txhua lub xaim txuas nrog SSR lub terminals. Kev xoob xoob yog ib qho muaj thiab txaus ntshai. Lawv tsim cov kub uas tuaj yeem ua rau feem ua tsis tiav thiab hluav taws kub.
Kauj ruam 2: Tshawb xyuas Kev Tswj Xyuas Circuit Court
Cov kauj ruam no teb ib nqe lus nug: Puas yog SSR tau txais lub teeb liab kom tig mus? Yog tias lub teeb liab tswj tau ploj los yog tsis ncaj ncees lawm, SSR tsis tuaj yeem ua haujlwm, txawm tias nws zoo kawg nkaus.
Ua ntej, nrog lub hwj chim tseem tawm, ob - Khij tias tswj cov xaim hluav taws xob txuas rau cov kev sib txuas nrog cov chav tshem tawm (+ {} rau DC, A1 thiab A2 rau AC). Nco ntsoov tias polarity muaj tseeb rau DC cov qauv.
Tam sim no, tom qab cov txheej txheem kev nyab xeeb rau nyob circuits, tig lub zog rov qab. Hais kom lub kaw lus tig tus SSR ntawm (zoo li teeb tsa qhov ntsuas kub thiab txias tshaj qhov kub tam sim no).
Siv koj cov multimeter ntawm txoj cai voltage ntau (VDC lossis VOLTCAGE ntau (VERCT) los ntsuas voltage ncaj qha thoob plaws SSR cov tswv yim terminals.
Piv koj nyeem ntawv rau kev tswj kev tswj voltage ntawm SSR daim ntawv lo (zoo li 4-32VDC). Yog hais tias tus voltage yog nyob rau hauv no ntau, lub teeb liab tswj tau zoo. Txav mus rau Kauj ruam 3.
Yog tias koj nyeem Volts Volts, lossis voltage uas tsawg dhau los yog tsis khov, tus SSR tsis yog qhov teeb meem. Qhov txhaum yog nyob hauv kev tswj hwm. Txheeb xyuas cov PLC cov zis, tswj hwm relay, tswj kev siv hluav taws xob, lossis tswj kav hlau.
Kauj ruam 3: Tshawb xyuas LOAD CALCRATIC
Yog tias lub teeb liab tswj tau tam sim no, kuaj yog tias SSR hloov siab ntau voltage rau lub nra. Qhov no txhais tau tias ntsuas voltages thoob plaws SSR cov zis tawm tswv yim thaum nws ob qho tib si ntawm thiab tawm.
Qhov kev ntsuas no xav tau lub nra sib txuas thiab lub zog tseem ceeb ntawm. Ceev faj heev.
Ua ntej, sim nrog SSR tau txib txog. Siv lub teeb liab tswj. Siv koj txoj kev sib txuam rau cov hluav taws xob ntau rau kev ntsuas voltage hla txhua qhov kev tawm tsam (T1 txog L2, T3).
Kev noj qab haus huv, ua SSR ua yeeb yam zoo li lub pob nyem kaw. Koj yuav tsum pom lub voltage me me poob thoob plaws nws cov kev txiav tawm, feem ntau 1 txog 2 lub Vac. Qhov no me me voltage yog siv los ntawm cov semiconductors sab hauv. Yog tias koj pom kev nyeem no ntawm tag nrho peb ntu, SSR yog qhov yuav hloov kho kom raug.
Yog tias koj ntsuas cov kab hluav taws xob (xws li 240v lossis 480v) thoob plaws ib ntu thaum SSR tau txib rau, qhov theem ntawd tsis tig mus. Nws tau ua tsis tiav qhib.
Tom ntej no, sim nrog SSR tau txib tawm. Tshem cov teeb liab tswj. Ib zaug ntxiv, ntsuas tau voltage hla txhua ntawm peb cov zis theem (T1 txog L1, T2 rau L2, T3).
Kev noj qab haus huv, tsis -}}}}}}}}}}} Cov SSR ua zoo li qhib hloov. Koj yuav tsum ntsuas cov kab hluav taws xob tag nrho voltage hla cov terminals vim tias SSR yog thaiv cov ntws tam sim no.
Yog tias koj ntsuas ze tshaj VALTAGE rau ib theem thaum SSR tau raug txib tawm, theem ntawd tau ua tsis tiav. Nws tau daig thiab yuav tsis tua. Qhov no yog qhov txaus ntshai. Hloov cov SSR tam sim ntawd.
Ceeb Toom: SSRs muaj cov "xau tam sim no" txawm tias thaum tawm. Ib qho rhiab digital pulultimeter tej zaum yuav xaiv no thiab qhia cov kev ntsuas tsis zoo. Yog tias koj xav tias qhov no, qhov qis -} agnedance multimeter pub tau zoo dua.
Kauj Ruam 4: Ntsuam xyuas cov cua sov
Thaum tshav kub kub yog tus yeeb ncuab loj tshaj plaws ntawm cov khoom - lub xeev cov khoom siv. SSR tsim kev kub thaum ua tam sim no. Cov cua sov no yuav tsum tau muab tshem tawm kom tiv thaiv cov ntu sab hauv los ntawm kev kub ntxhov thiab tsis ua tiav. Muaj ntau cov SSR swb tsis yog los ntawm kev tsis xws luag nyob rau hauv lub relay nws tus kheej, tab sis los ntawm kev tswj hwm kub.
Pib los ntawm kev kuaj cov cua sov. Nws puas yog qhov loj me rau lub nra tam sim no thiab chav tsev kub? Cov chaw tsim khoom DUA DAVASTE muaj cov kab kos rau xaiv qhov tseeb hamsink. Nco ntsoov tias hamsink fasks yog huv thiab dawb ntawm hmoov av, roj, lossis khib nyiab uas thaiv airflow. Yog tias muaj kiv cua txias, tshawb xyuas nws ua haujlwm.
Txheeb xyuas tus SSR li cas rau cov cua sov. Lub SSR puag yuav tsum zaum tiv thaiv cov heatsink nto rau qhov ntau tshaj plaws hloov cua sov. Thov ib qho nyias nyias, txawm tias txheej ntawm thermal compound ntawm cov chaw. Txhua qhov khoob lossis cov thermal thermal compound tsim cov kub thiab tsis ua tiav.
Txoj hauv kev zoo tshaj plaws los tshawb xyuas cov cua sov ua haujlwm yog nrog tus pas ntsuas kub infrared lossis lub koob yees duab thermal. Nrog cov khoom siv khiav ntawm tag nrho cov kev thauj khoom tsawg kawg 30 feeb, ntsuas ntsuas qhov kub ntawm SSR tus hlau puag.
Sib piv qhov kev ua haujlwm no rau qhov xwm txheej kub tshaj plaws hauv SSR's DATHEET. Nco ntsoov xyuas cov nkhaus sib tw, uas qhia tau tias yuav txo qhov siab tshaj plaws ntawm kev thauj khoom ntau npaum li kub nce. Yog tias koj ntsuas kub ntsuas qhov kev txwv siab tshaj plaws, koj muaj teeb meem txias. Txhim kho nws nrog cov hluav taws kub loj dua, muaj qhov chaw nqus pa, lossis kiv cua.
Cov Qauv Ua tsis tiav
Cov rooj no txuas cov tsos mob tshwm sim rau cov tsos mob rau lawv cov laj thawj yuav ua rau muaj kev daws teeb meem. Siv qhov no kom sai sai siv tam sim ntawd kev coj tus cwj pwm.
|
Mob li cas |
Feem ntau yuav ua rau (s) |
Kev daws teeb meem sai sai |
|
Relay yuav tsis tig |
1. Tsis muaj / tsis muaj kev tswj xyuas lub teeb liab |
1. Khij tswj kev tswj voltage ntawm SSR cov tswv yim terminals nrog multimeter. |
|
Relay yuav tsis tua |
1. SSR sab hauv |
1. Disconnect tswj cov xov tooj tswj hwm ntawm SSR. Kuaj xyuas yog tias lub thauj mus. |
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Relay / Thauj Khoom "sib tham" lossis flashes |
1. Tsis muaj SSR hom (piv txwv li, xoom -} hla kev ntawm kev thauj khoom hauv inductive) |
1. Tshawb xyuas SSR (xoom {-}}}}}}}}} random random) random random) yog qhov tseeb rau hom load (tawm tsam lossis inductive). |
|
Overheating / nquag ua tsis tiav |
1. Kev kub ceev tsis txaus |
1. Tshawb xyuas, huv si, thiab txheeb xyuas qhov cua sov yog qhov loj me thiab mounted nrog cov thermal compound. |
Kho lossis hloov?
Thaum koj pom qhov txhaum, koj puas yuav tsum kho lossis hloov cov khoom sib xyaw? Rau cov khoom - Xeev Relays, cov lus teb feem ntau yooj yim.
Kev txiav txim siab yog nkag siab tias SSR chav yog ntim, thaum lub kaw lus ib puag ncig nws tuaj yeem ua haujlwm.
Vim li cas hloov hloov yog qhov zoo tshaj plaws
Cov khoom - Lub Xeev Relay yog lub rooj sib dhos hauv hluav taws xob. Nws sab hauv - ntaub photocouplers, ua rau muaj kev sib tw, thiab scrs {{3} Kuv tsis yog tsim rau kev pabcuam kev pabcuam. Tsis muaj tus siv -} Pab cov khoom hauv SSR.
Yog tias muaj kev daws teeb meem pom zoo sab hauv tsis ua haujlwm, zoo li cov theem uas ua tsis tiav lossis luv luv, tsuas yog hloov pauv tag nrho cov SSR. Sim qhib lossis kho cov chav tsev yog cov ntawv pov thawj kev nyab xeeb.
Kho cov kab ke
Thaum lub sijhawm SSR tsis tuaj yeem kho tau, cov xwm txheej sab nraud uas ua rau tsis ua haujlwm feem ntau yuav kho tau. Nov yog qhov tseeb "kho" tshwm sim. Ib txoj kev vam meej, ntev {- Qhov kev txhim kho lub ntsiab txhais tau tias tsis yog txuas cov hauv paus cag.
Qhov no suav nrog hloov cov xov tsis zoo lossis ua tiav PLC tsim tawm uas tau xa cov cim tsis raug. Nws txhais tau tias txhim kho ib qho kev kub ntxhov lossis ntxiv cov kiv cua txias rau cov teeb meem cua sov.
Nws cuam tshuam nrog kev ntxuav cov av heatsink feaths los restore cua txias. Qhov tseem ceeb, nws txhais tau tias nrhiav thiab zawm cov hluav taws xob sib txuas uas tsim cov kub. Txhim kho cov kev ua txhaum sab nraud tiv thaiv tiv thaiv tus SSR tshiab los ntawm kev ua tsis tau.
Cov txij nkawm ssr txij nkawm
Txoj hauv kev zoo tshaj plaws los lis SSR swb yog kev tiv thaiv lawv. Tsiv los ntawm kev kho cov khoom sib tsoo tawg kom tau teem sijhawm txhim kho cov cuab yeej siv tau zoo thiab txo qis poob nthav.
Ib lub sijhawm kho kom yooj yim, kev txij nkawm zoo ib puag ncig tuaj yeem txuas ntxiv nrawm dua - lub xeev relay lub neej thiab cov kab ke lawv tswj.
Lub sijhawm txij nkawm
Lub hom phiaj saib xyuas tsis tas yuav tsum nyuaj. Peb lub hlis twg thiab cov tshev txhua xyoo coj cov teeb meem loj tshaj plaws ua ntej lawv ua rau kev ua tsis ncaj ncees. Lub sijhawm no yuav tsum yog ib feem ntawm kev tiv thaiv kev tiv thaiv tag nrho rau lub tshuab lossis chaw.
Cov ntaub ntawv tshawb pom, tshwj xeeb tshaj yog qhov ntsuas kub. Qhov no pab xyuas kom paub meej meej sijhawm dhau lub sijhawm uas yuav ua rau muaj kev tiv thaiv tsis zoo lossis ua kom muaj kev loj hlob.
Peb hlis twg txij nkawm
Cov tshev ceev no siv ob peb feeb thiab tsom rau feem ntau ib puag ncig ib puag ncig tsis muaj tseeb.
Kev Ntsuam Xyuas Pom: Saib ntawm watcheinks rau hmoov av, av, lossis roj buildup. Nyob rau hauv ib puag ncig qias neeg, xyuas ntau zaus.
Mloog: nrog cov cuab yeej ua haujlwm, mloog qhov kev sib tsoo tsis zoo lossis tawg ntawm cov kiv cua txias. Qhov no qhia tau cov kabmob tsis ua tiav yog los.
Huv si: yog tias hmoov av nyob tam sim no, tua lub zog thiab xauv tawm lub vaj huam sib luag. Siv muag muag muag muag thiab lub tshuab nqus tsev lossis roj -} free compressed cua kom huv si heatsink featsin fas. Ua kom cov txee kom huv thiab.
Daim Ntawv Qhia Ib Xyoos Xyoo
Cov ntaub ntawv ntxaws ntxaws no yuav tsum tau ua ib xyoos ib zaug thaum lub sijhawm kho tau teem sijhawm.
Thermal Scan: Nrog lub tshuab ua haujlwm ntawm qhov ntsuas kub tau txais, siv tus ntsuas kub infrared lossis thermal lub koob yees duab los ntsuas txhua peb {} {pagease. Teev qhov kub thiab muab piv rau cov xyoo dhau los. Qhov ntsuas kub khov kho kom nce xyoo nyob rau xyoo dhau los qhia teeb meem nrog cov chaw ntxhua khaub ncaws, qhov cua, lossis SSR nws tus kheej.
Kev sib txuas Torque: Thermal Cycling - Kev nthuav dav thiab kev cog lus los ntawm cua sov thiab cua txias}} tuaj yeem xoob ntsia hlau lub sijhawm dhau sijhawm. Qhov no yog ib qho tseem ceeb tsis ua hauj lwm. Nrog lub hwj chim tawm, siv ib qho hluav taws xob ntsuas ntawm cov ntsia hlau ntswj lossis wrench rau re ... {porque tag nrho cov siab thiab thauj khoom sab) rau cov chaw tsim khoom lag luam. Kev sib txuas ntawm txoj kev sib txuas tsim tawm, uas tsim cua sov, ua rau thermal khiav tawm thiab ib puag ncig ua tsis tiav.
Ntxuam Khij / Hloov: Cov kiv cua txias muaj cov nyiaj ua neej, feem ntau luv dua li SSR. Ntsuam cov kiv cua cuam tshuam nrog SSRS lossis kev tswj txee. Yog tias lawv tau ntau xyoo lossis qhia cov cim ntawm qeeb, hloov lawv tsis zoo tshaj qhov tsis ua tiav.
Txheeb xyuas lub cav: Tshawb xyuas kev tu lub cav. Puas yog koj hloov tib lub SSR txhua 18 lub hlis? Cov ntsiab lus no rau qhov teeb meem system {{2} Zoo li kev sib tw ua kom tsis raug lossis hluav taws xob tsis zoo los yog kev sib pauv tau yooj yim.
Xaus: SSR kev cia siab
Kev daws teeb meem tau zoo ntawm peb theem khoom muaj peev xwm relay tsis xav tau hmoov. Nws yuav tsum muaj lub laj thawj thiab txoj kev mus kom ze. Los ntawm kev kuaj xyuas peb tus ncej ntawm kev ua haujlwm-}}}}}}}}}} Koj tuaj yeem paub tseeb thiab ua rau muaj kev tsis ua haujlwm. Tus txheej txheem no hloov kev ntxhov siab rau kev teeb tsa downtime kev tshwm sim rau hauv ib qho teeb meem, daws teeb meem.
Nco ntsoov tias SSR feem ntau yog tus neeg raug tsim txom los ntawm nws ib puag ncig. Feem ntau cov hauv paus ua rau tsis ua haujlwm
Yog li ntawd, txoj kev rau kev ntseeg tau mus dhau qhov kev daws teeb meem zoo. Nws nyob hauv kev tsim kom zoo - Hais txog kev saib xyuas kom zoo nkauj thiab kev tu kom zoo nkauj ntawm peb {}}} lub xeev repays. Los ntawm kev ua kom lawv txias, huv si, thiab nruj, koj meej koj cov khoom {}}} Lub Xeev nce, thiab cov kev pab cuam uas nyob ntsiag to, thiab muaj peev xwm tsim tau.