"Qala-stop" iqhosha kwi izindlu. Indlela ukuxhuma?

amaqhosha Control "sisiqalo-ukuyeka" eziqhelekileyo emsebenzini. Ezi zixhobo zisetyenziswa ukuba usebenzise oomatshini. Phambi kokuxhuma imodeli kubalulekile ukwazi uhlobo iswitshi. Kukho qha nokulungalungiswa engasebenzi ngeengcingo. Ukongeza, idlala indima isilawuli, esetyenziswa ngexesha lofako. Ukuze siqonde imbambano, kuyimfuneko kuqala ukuqwalasela ibhanile iingcingo kwisazobe iswitshi.

Idayagram

Standard uqhagamshelo yesiphaluka iqhosha start-stop kubandakanya ukusetyenziswa ukuvalwa lwekontraka. Ukuqaleka ukuba ifaniswe conductivity ka-4.5 cm. Ezinye iingcali bafakele ifowuni ngqo nge relay. Oku igxunyekwe kuphela iinguqulelo ezifanelekileyo. Ukuba beka ifowuni kunye comparator, i-flip-गर्नुहोस् qalela isetyenziswa ne insulators. Ucingo yokuqala ukusuka iswitshi ivale coil relay. Lwekontraka inikezelwa ngqo transceiver.

Ukuqwalaselwa QF1

Idibanisa nge Umqali iqhosha "qala-stop" lwenziwa yi baphinde. Ukuba sicinga Udweliso umlawuli Esetyenzisiweyo, lo thyristor lisetyenziswa ngezigaba ezibini. Ngqo capacitor kufuneka 4 PF. Iingcali zithi ukuba nabalawuli ingasetyenziswa kwiziphumo ezimbini nantathu. Noko ke, kule meko, oku kuxhomekeke kuhlobo rectifier. Xa koomatshini eqhelekileyo ukuba ifakwe ngentlawulo ezintle.

Lokumelana ke ilingana no ngaphantsi kwe ohms-50. Kubalulekile ukuba uqaphele ukuba uye walungiselela ipleyiti wokuvala. Kulo meko, abafowunelwa yokuqala iswitshi ezinikwa le relay. Apho isilawuli ivale isigaba sokuqala. Ngaphambi kokuba ahlole uxhathiso kubalulekile ukujonga yesekethe komhlaba. Kwakhona Kucetyiswa ukuba ukudibanisa yokwambathisa. Qha lwesibini iswitshi nakwesiphi na olwandisa. Le somfanekiso kufuneka ukudibanisa uhlobo otshangatshangiswayo.

Umzobo ne actuator ongenakulungiseka

ukubala vuhlayiseki mva rhoqo. iqhosha Connect "qala-stop" uvumelekile ukuba enze ngqo nge relay. Kulo mzekelo, i-flip-flops nje isicelo. Kufuneka kuqatshelwe ukuba ukufakelwa iswitshi kunokwenziwa ngokusebenzisa comparator. Kwimeko enjalo kuya kuba lula ukufaka esisebenza. Ngaphezu imvelaphi inyuselwa somfanekiso.

Iingcali zithi ukuba converter kusetyenziswa uhlobo qho-zemiyalelo. Ukuhlobanisa yomfowunelwa wokuqala kuthwalwa kwisigaba sokuqala. Kufuneka kuqatshelwe ukuba kwisekethe capacitors zisetyenziswa uhlobo capacitive. Ngaloo ndlela somfanekiso kufuneka uhlobo-kwipali enye. Ukuba sicinga zidlulisele channel-mbini, i wegazi zoqhagamshelwano kuphela asetyenziswa kuzo. Le nokucima zivaliwe kulo mzekelo kunye bobuso. Abafownelwa zokuqala phantsi kwisigaba sesibini.

Ukusebenzisa ukubala elungisa

Ukuhlobanisa isiqalo-stop iqhosha nge contactors nitshintshe lwenziwa okanye ngaphandle converters. Ukuba sicinga ukhetho yokuqala, capacitors zisetyenziswa kunye insulators semiconductor. Ngqo asetyenziswa ngokubhijela 15V index ukuxhathisa kulo akufunekanga ibe ohms ngaphantsi kwama-30.

A comparator iyasetyenziswa beze kulayita iziphumo ezimbini. Yomfowunelwa wokuqala uvaliwe yi isigaba sokuqala. Le somfanekiso kule meko kufuneka sibe kwindawo evulekileyo. Ezinye iinguqulelo zithengiselwa kunye izihluzi. Kananjalo kubalulekile ukuba siqaphele ukuba kukho contactors kunye Unijunction resistors.

Imiyalelo Yokuqala PML-1100 Series

Indlela ukudibanisa i "qala-stop 'iqhosha? It intle elula ukwenza nge thyristor ijelo. Osebenzisa kuba isixhobo lemifanekiso ezimbini ekhethiweyo. index ukumelana, nge-avareji ilingana ohms 55. Dynistors egunyazisiweyo ukusebenzisa udidi bi-zemiyalelo.

Iingcali zithi kubalulekile ngokupheleleyo ukucoca contactors. Ngaphezulu, kufuneka kuqatshelwe ukuba abaqhubi kufuneka zigqunyiwe. Yomfowunelwa wokuqala uvaliwe kwisigaba sesibini. Le conductivity chain, nge-avareji ilingana no 4.5 cm. Le olwandisa kusetyenziswa xa ufaka uhlobo lwebhendi ebanzi.

Ohlanganisa ukuziqalela seemodyuli

Kuba Yokuqala wire iimodyuli idityanisiwe kuphela kwiqhosha "qala-stop". Kulo mzekelo, i converters idla ngokusetyenziswa kunye ezisebenza ngokubakho. Yomfowunelwa wokuqala iswitshi ivaliwe yi isigaba sokuqala. Ngqo yokwambathisa imiselwe ukuze uphumelele. kusetyenziswe rectifier thyristor. Noko ke, kule meko, oku kuxhomekeke esisebenza. Xa siqwalasela umzekelo kwiziphumo ezintathu, kufuneka dynistor ezimbini. Yomfowunelwa wokuqala iswitshi ivaliwe yi kwisigaba sesibini. A somfanekiso ekhwele ukuya kwenye ekupheleni lokucoca ulwelo.

Yokuqala Uguqulelo lwe open

Iqhosha "Start-stop 'izindlu ukuvula lwekontraka enxulumene noko ngocingo adubule. Le transceiver lisetyenziswa wegazi omnye okanye ngaphezulu. Xa uqhagamshela le inverter lukhangelwe ukuxhathisa ukususela capacitor abakwazi ukumelana nomthwalo yangoku.

Olu khetho yi-avareji ulingana ohms 33. Ukuba i-indawo ezintathu batshintshele kunye isilawuli, eli transceiver usebenzisa uhlobo multi-channel. Conductivity kufuneka ube malunga 4.5 cm. Ngaphezu koko, kubalulekile ukuqaphela ukuba umfowunelwa yesibini iswitshi ivaliwe yi isigaba sokuqala. Iingcali zithi umqhubi kwi kwipleyiti kufuneka ska ngenyameko. Le isolator umiselwe olwandisa. Ukuba solder-ngenxa transceiver, isihluzo esinye ezimbini asetyenziswa wesekethe.

ukubala kokuxhuma ivaliwe uphumezo

Iqhosha "qala-ayeke" ukubala data efakwe ngqo nge relay. Le transistors ayakhethwa ukulungiselela le njongo a conductivity eliphantsi. Phambi kokuxhuma kuvavanywa amacandelo output amanzi. Uthe parameter kwi wesekethe mayingagqithi ohms 45. Xa omninzi eliphezulu kucetyiswa ukuba utshintshe lokucoca ulwelo. Kananjalo kubalulekile ukuba siqaphele ukuba iingxaki lunokwenzeka ngenxa conductivity sezantsi kwesikhundla transistor. Yomfowunelwa wokuqala iswitshi ivaliwe yi isigaba sokuqala. Kungako beesekethe lisetyenziswa kuphela hlobo-kwipali enye. Omninzi Isalathisi embundwini kwicandelo imbono ilingana ubuncinane 5 A.

Udibaniso ngokusebenzisa unijunction iswitshi kubangela

Unijunction ekwenyukeni babe conductivity eliphezulu. izixhobo Insulators zohlobo olukhethiweyo ibhidi. Simple iqhosha "qala-stop" lusekiwe ngqo nge baphinde. Kufuneka kuqatshelwe ukuba isixhobo ufakelo zingenziwa ngokusebenzisa iyunithi yolawulo. Xa siqwalasela umatshini wokugaya eqhelekileyo, i transceiver usebenzisa uhlobo olunye-channel. Yomfowunelwa wokuqala iswitshi inikezelwa yi kwisigaba sesibini. Kweli nqanaba kubalulekile ukuvavanya amanzi kwimveliso. Xa sithwalisa 3 A conductivity kufuneka ingadluli 5.5 Niyabo.

Ukuba usebenzisa izilawuli eqinileyo-karhulumente, i uxhathiso kwi-avareji alinganayo ohms 55. Ngaphezu koko, kubalulekile ukuqaphela ukuba ngokufuthi Ukuseta contactors lokuvalwa kwi kunye outs ezimbini. Kule meko, i yokwambathisa umiselwe sixhobo. Ngenxa yoko, omninzi ekugqibeleni lidlula 6 A. ukuqaleka badla isicelo ukuya endlebeni. Qhagamshelana nabo ukuze kuqhagamshelwa ngokuthe ngqo.

kusungula Isicelo dvuhperehodnyh

Lidla iqhosha "qala-stop 'umiselwe kunye kusungula ithuba-emibini. Bona uxhume nge gqatso ukuya unikezelo 12 V igunya kusetyenziswa uhlobo ukubetha. Ukubalisa angasebenzisa 4 A. I iswitshi aqala imvelaphi inyuselwa khona ukuya ukufakela transducer. lokumelana imveliso alinganayo ohms 40. Ukuba sakhi kakhulu kushushu kakhulu, ngoko ke ingxaki ilele kwi adubule ingxinano. Ukulungiselela le njongo, kuphela capacitors wire. Ngaloo comparators zivaliwe yi kwisigaba sokuqala.

Devices kunye nabaqondisi capacitive bangathungelana kuphela dynistors. Kulo mzekelo, ulungiso ezifanelekileyo iziphumo ezintathu kuphela. Le yokwambathisa ukhwele kwisekethe kwimveliso. Kulo mzekelo, i converter kukhethiwe blocker ibhidi. Imveliso ombane kumphathi wesekethe imalunga 15 V. Kulo mzekelo, ombane umthwalo mayingagqithi 4 A. Ukuba umlawuli dipole, zombini linokusetyenziswa iziphumo ezimbini. Yomfowunelwa wokuqala iswitshi ivaliwe yi kwisigaba sesibini. I ukumelana kufuneka ohms ngaphantsi kwama-30.