Maitiro ekugadzirisa sei control panel ye wepakati frequency choto? Detailed debugging matanho

Bhodhi rekutonga revheji yepakati pevheji chinhu chakakosha zvikuru apo iyo yepakati frequency furnace iri kushanda. Kubva pakusarudzwa kuenda kune welding board welding, kusvika ku debugging uye kuchembera bvunzo, chinhu chakakosha chinongedzo. Pakati pavo, vashandisi vazhinji vanoregeredza basa rekugadzirisa bhodhi rekutonga, uye havazive maitiro ekugadzirisa bhodhi rekutonga repakati frequency choto. Nhasi ndapfupikisa zvirimo zvine chekuita neiyo control panel debugging matanho ekukutsanangurira, ngatizvitarisei pamwechete.

1. Matanho ekugadzirisa echikamu chekugadzirisa chepaneru yekudzora yepakati frequency furnace.

1. Nekuchengetedza kwekugadzirisa, inverter bridge inofanira kuvharwa isati yagadzirisa.

2. Matatu-chikamu magetsi anogona kupihwa, zvisinei nekutevedzana kwechikamu, uye tarisa kana paine chikamu chekutadza alarm report. Kana zvirizvo, tarisa kuti fuse inokurumidza kuuya yakanganiswa here.

3. Shandura iyo “yakapiwa” potentiometer papaneti kune yakakura clockwise, iyo DC voltage waveform inofanira kunge yakanyatsobudiswa, uye yose 6 wave misoro iri mukati. chiratidzo panguva ino Around 380V. Wobva watendeutsa iyo “yakapihwa” potentiometer papanera inopesana newachi kuenda kudiki, iyo DC voltage waveform inenge yakavharwa zvachose, uye kona A ingangoita 530 madhigirii panguva ino. Iyo inobuda DC waveform inofanirwa kuenderera uye yakatsetseka muchikamu chese chekuchinja renji.

4. Mumamiriro ekukundikana kwesimba, batanidza inverter bhiriji kuti uite inverter inokonzera pulse input, uye bvisa resitive load pa rectifier bridge port. Shandura “W1VF” yekucheka potentiometer pabhodhi redunhu kusvika kumagumo, (apo inverter overvoltage inoitika panguva yekugadzirisa, inogona kupa overvoltage dziviriro). Iyo switch pane main control panel inoiswa kune ON chinzvimbo, uye iyo “yakapihwa” potentiometer papaneri inotenderedzwa inopesana newachi.

5. Mushure mekuita simba kwemasekonzi mashoma, shandura iyo “yakapihwa” potentiometer papaneru newachi zvishoma nezvishoma kuti uwedzere. Panguva ino, iyo inverter zambuko richaonekwa mune maviri anoshanda nyika, imwe inverter zambuko oscillating, imwe yacho Ndiyo inverter zambuko kuburikidza. Chinodiwa panguva ino inverter bridge yakananga kubatana. Kana iyo inverter bhiriji iri mu oscillating state, chikamu chepakati frequency voltage transformer inogona kugadziridzwa mumamiriro ekutadza kwesimba, ndiko kuti, mutsara unobuda wepakati frequency voltage transformer 20V mhepo inogona kugadziriswa. Rinozotanga kubvunda. Mukushanda zvishoma nezvishoma kushandura “yakapiwa” potentiometer pane guru guru, nyatsoteerera kumhinduro yeammeter. Kana chiratidzo cheammeter chichiwedzera nokukurumidza, unofanira kukurumidza kushandura “yakapiwa” potentiometer counterclockwise. ,

6. Panguva ino, inoratidza kuti pane dambudziko kune ikozvino sampling circuit, uye hurongwa huri mumamiriro ezvinhu akazaruka. Tarisa uone kana transformer iripo yakabatana. Izvo zvakajairika kuita ndezvekuti sezvo iyo “yakapihwa” potentiometer inowedzera zvishoma nezvishoma, chiratidzo cheammeter chinowedzerawo. Kana iyo “yakapihwa” potentiometer ikamira kutenderera, chiratidzo cheammeter chinogona kumira padanho rakati.

7. Kana paine chiitiko, shandura iyo “yakapihwa” potentiometer papaneru newachi kuti chiratidziro cheammita chiri pedyo ne50% yemutengo wakayerwa. Iyo glue ikozvino voltmeter inoyera voltage pakati pezviteshi zvitatu. Iwo matatu voltages anofanirwa kunge akafanana. Kana mutsauko wacho wakakurisa, zvinoreva kuti iyo terminal ine zita rimwechete reiyozvino transformer yakabatana zvisizvo. Inofanirwa kururamiswa, kana zvisina kudaro ichakanganisa kushanda kwakajairika kweiyo ikozvino regulator. .

8. Ramba uchishandura potentiometer “yakapiwa” papaneti yewachi kusvika kumagumo, chiratidzo che ammeter chinofanira kuva pedyo nehuwandu hwehuwandu, uye gadzirisa ikozvino pane bhodhi guru rekutonga counterclockwise kuti udyise potentiometer yekucheka kuita DC. ammeter inoratidza yakayerwa kubuda ikozvino. Kugadziriswa kweiyo yakayerwa ikozvino kwapera. Nenzira iyi, kugadzirisa kwebhiriji rekugadziridza kunopedzwa, uye kugadzirisa kweiyo inverter bhiriji kunogona kuitwa.

9. Apo simba rekugadzirisa nzvimbo yekugadzirisa harigoni kugovera ikozvino yakarongedzerwa yechigadzirwa, kuiswa kweiyo yakarongwa ikozvino kunogona kuitwa apo nzvimbo yacho inoshanda pamutoro wakakwana. Nekudaro, iwe unofanirwa kutanga waona kana yazvino sampling loop iri kushanda nemazvo pasi pemamiriro ediki ikozvino.

Chechipiri, nhanho dzekugadzirisa dzeiyo inverter chikamu chepaneru chekutonga chepakati frequency choto

1, calibration frequency tafura

DIP -2 yekuchinja pane main control board inoiswa kune ON chinzvimbo, DIP -3 inoiswa kune OFF chinzvimbo, uye iyo “yakapihwa” potentiometer papaneru inodzikiswa pasi newachi. Batanidza oscilloscope kuchubhu kesi yeQ5 kana Q6, kuyera imwe mafambiro eiyo inverter trigger pulse (iyo imwe mafambiro ekusimudzira inogona kugadziridzwa neFMAX neDIP-1), gadzirisa: W6 FHZ “tune-tune iyo potentiometer kugadzira. kuverenga kwema frequency mita Inopindirana neinopimwa neoscilloscope. Kana iyo yepakati frequency magetsi ichishandisa yakakosha yepakati frequency frequency mita, iyi nhanho yekubvisa inogona kusiiwa.

2, kutanga-up inverter

(1) Chekutanga, tarisa kana mutsara wegedhi we inverter thyristor wakabatana nemazvo, uye kana kupenya kwe LED pane yekupedzisira nhanho ye inverter yakajairika. Kana iyo isina kujeka, zvinoreva kuti E uye C zviteshi zve inverter nhanho zvinodzoserwa shure; ipapo iyo huru yekudzora bhodhi Bvisa kubatana kwekunze kweiyo UA yepamusoro, uye ona kana iyo LED inverter nhanho inodzimwa iri munzvimbo ye diagonal ye inverter bhiriji.

(2) Shandura DIP-2 yeDIP chinja pane main control board kuenda kune ON chinzvimbo uye DIP-3 kune OFF chinzvimbo, shandura iyo “yakapihwa” potentiometer papaneru kusvika kumagumo, uye gadzirisa “W5” pa. iyo control panel. FMAX “Fine-tuning potentiometer uye DIP-1, ita kuti mafambiro ekusimudzira awedzere kupfuura 1.4 nguva dzetangi resonance frequency, “W3MAX” uye “W4MIN” yakanaka-tuning potentiometers inoshandurwa munzvimbo yepakati. Shandura iyo “yakapihwa” potentiometer papaneru newachi kuenda kune yakakura, uye ipapo mafambiro ayo ekusimudzira anotanga kutsvaira kubva kumusoro kusvika pasi. Iyo inverter bhiriji inopinda munzvimbo yekushanda uye inotanga kudedera.

(3) Kana ikasadengenyeka, inozoratidzwa sezvo ichikurudzira chiratidzo kuti iite inodzokororwa kutsvaira zviito, izvo zvinogona kugadzirisa chikamu chepakati frequency voltage transformer, kureva kudzosera mutsara unobuda we20V mhepo yemhepo. yepakati frequency voltage transformer. Kana iyo inobuda mutsara we20V mhepo yepakati frequency voltage transformer ikadzoserwa, ichiri kutadza kutanga. Panguva ino, iwe unofanirwa kusimbisa kana resonance frequency yetangi redunhu rakarurama. Iwe unogona kushandisa capacitance / inductance mita kuyera capacitance yekupisa capacitor uye inductance yeinductor. Verenga iyo resonant frequency yetangi redunhu. Kana iyo resonant frequency yetangi redunhu iri pakati pe 0.6 kusvika 0.9 yeiyo excitation frequency, inofanira kunge iri nyore kutanga. Nhanho inotevera ndeyekutarisa kana inverter thyristor yakakuvadzwa.

3, isa kona yekumberi kweiyo reverse lead

(1) Mushure mekunge inverter yatanga kuzununguka, unogona kuita basa rekuisa iyo yekumberi kona ye inverter. Shandura DIP chinja DIP-2 munzvimbo yeON uye DIP-3 iri OFF chinzvimbo. Iyo pulser inoona waveform ye100V inotenderera yevoltage transformer uye inogadzirisa Iyo “W4MIN” yakanaka-tuning potentiometer pane huru control board inoita inverse conversion phase lead angle kutenderedza 25 °. Panguva ino, chiyero chepakati frequency kubuda voltage kune DC voltage inotenderera 1.3.

(2) Shandura iyo DIP-3 chinja kune ON chinzvimbo zvakare, gadzirisa “W3 MAX” yekuchera potentiometer pane huru control board, uye isa kona yepamberi yereverse kutendeuka kwechikamu chinotungamira. Zvinoenderana neyakasiyana yepakati frequency inobuda voltage ye750V, iyo inverse yekushandura chikamu chinotungamira angle inodiwa kuti iite 42 °. Panguva ino, chiyero chepakati frequency kubuda voltage kune DC voltage ndeye 1.5.

(3) Kana paine yakanyanyisa hombe yekumberi kona ye inverter panguva yekugadzirisa, tarisa kana tangi redunhu resonance frequency yakadzikira.

4. Kugadzwa kweiyo yakatemerwa kubuda voltage

Seta iyo yakatemerwa inobuda voltage pasi peyakaremerwa mamiriro ezvinhu, isa iyo DIP switch DIP-2 pane main control board kune iyo ON chinzvimbo uye DIP-3 kune OFF chinzvimbo. “Chinja potentiometer newachi, uye inverter bhiriji inoshanda. Ramba uchitenderedza “yakapihwa” potentiometer papaneru newachi kuti uwedzere. Panguva ino, iyo inobuda yepakati frequency voltage iri padyo neyakayerwa kukosha. Gadzirisa iyo “W1VF” yakanaka-tuning potentiometer counterclockwise kuita kuti inobuda yepakati frequency voltage isvike pachiyero chakayerwa.