Tisati taudza dambudziko iri, chekutanga, isu tinofanirwa kujeka nezve chinangwa che servo mota, maererano neyakajairwa mota, iyo servo mota inonyanya kushandiswa pakumisikidza kwakaringana, saka isu tinowanzo taura kuti control servo, chokwadi, ndiyo chinzvimbo chekutonga che servo mota.Muchokwadi, iyo servo mota inoshandisawo mamwe maviri modhi ekushanda, ndiko kuti, kudzora kumhanya uye torque control, asi iyo application ishoma.Speed control inowanzoitwa ne frequency converter.Yekumhanyisa kudzora ine servo mota inowanzo shandiswa kukurumidza kumhanyisa uye kudzikisira kana chaiyo kumhanya kudzora, nekuti inoenderana neiyo frequency converter, iyo servo mota inogona kusvika kuzviuru zvekuchinja mukati memamirimita mashoma.
Nekuti servo yakavharwa-loop, kumhanya kwakanyatso kugadzikana.Torque control inonyanya kudzora inobuda torque ye servo mota, zvakare nekuda kwekukurumidza kupindura kwe servo mota.Kushandisa kwemhando mbiri dziri pamusoro pekutonga, unogona kutora servo drive se frequency converter, kazhinji ine analog control.
Iko kushandiswa kukuru kwe servo mota kana chinzvimbo chekutonga, saka bepa iri rinotarisa paPLC chinzvimbo chekutonga kwe servo mota.Position control ine huwandu hwemuviri huviri hunoda kudzorwa, ndiko kuti, kumhanya uye chinzvimbo.Kunyanya, ndeye kudzora kuti inokurumidza sei iyo servo mota inosvika pairi uye nekumira nemazvo.
Mutyairi weservo anodzora chinhambwe uye kumhanya kweiyo servo mota neiyo frequency uye nhamba yemapulses yaanogamuchira.Semuenzaniso, takabvumirana kuti servo mota yaizoshandura 10,000 pulses yega yega.Kana iyo PLC inotumira 10,000 pulses muminiti, ipapo servo motor inopedzisa denderedzwa pa 1r / min, uye kana ikatumira 10,000 pulses muchipiri, ipapo servo motor inopedzisa denderedzwa pa 60r / min.
Naizvozvo, PLC iri kuburikidza nekutonga kweiyo pulse kudzora servo mota, iyo yenyama nzira yekutumira pulse, ndiko kuti, kushandiswa kwePLC transistor kubuda ndiyo inonyanya kushandiswa nzira, kazhinji yakaderera-kuguma PLC uchishandisa nzira iyi.Uye iyo yepakati nepamusoro yekupedzisira PLC ndeyekutaurira huwandu uye kuwanda kwemapulses kumutyairi weservo, seProfibus-DP CANopen, MECHATROLINK-II, EtherCAT zvichingodaro.Idzi nzira mbiri dzinongova nzira dzakasiyana dzekuita, hunhu hwakafanana, hwekuronga, hwakafanana.Kunze kwekugamuchira pulse, kutonga kwe servo drive kwakangofanana neiyo inverter.
Pakunyora chirongwa, mutsauko uyu wakakura kwazvo, yeJapan PLC ndeyekushandisa nzira yekuraira, uye European PLC ndeye kushandisa chimiro chezvivharo zvinoshanda.Asi iwo musimboti wakafanana, sekudzora servo kuti uende zvachose chinzvimbo, iwe unofanirwa kudzora iyo PLC yekubuda chiteshi, pulse nhamba, pulse frequency, kukwidziridza uye kudzikisira nguva, uye unoda kuziva kana servo driver positioning yapera. , kana kusangana nemuganhu uye zvichingodaro.Hazvina mhosva kuti rudzii rwePLC, hachisi chinhu chinopfuura kutonga kwehuwandu hwemuviri uye kuverenga kwemafambo paramita, asi nzira dzakasiyana dzekushandisa dzePLC hadzina kufanana.
Izvo zviri pamusoro ndiyo pfupiso yePLC (inorongwa controller) control servo mota, tobva tasvika pakunzwisisa kuiswa kwePLC programmable controller precautions.
PLC chirongwa chekutonga chave chichishandiswa zvakanyanya munzvimbo dzakasiyana siyana, nekuti yemukati ine huwandu hukuru hwezvinhu zvemagetsi, zviri nyore kukanganiswa nezvimwe zvakatenderedza zvikamu zvemagetsi kukanganiswa, yakasimba magineti yemagetsi munda, ambient tembiricha uye humidity, vibration amplitude uye zvimwe zvinhu. kukanganisa basa rakajairwa rePLC controller, izvi zvinowanzo furatirwa nevanhu vazhinji.Kunyange kana purogiramu iri nani, maererano nekubatanidza kusungirirwa hakuteereri, mushure mekugadzirisa, kumhanya kunounza kukanganisa kwakawanda.Ndiri kumhanya mhanya ndichiedza kuichengetedza.
Izvi zvinotevera chenjedzo pakuiswa:
1. PLC yekuisa mamiriro
a, iyo ambient tembiricha inotangira pa0 kusvika ku55 degrees.Kana kutonhora kwakanyanya kana kuderera, zvikamu zvemagetsi zvemukati hazvishande zvakanaka.Tora matanho ekutonhora kana kudziya kana zvichidikanwa
b, humidity yepakati i35% ~ 85%, humidity yakanyanyisa, magetsi emagetsi ezvikamu zvemagetsi anowedzerwa, zviri nyore kudzikisa voltage yezvikamu, ikozvino yakakura uye kukuvara kwekuparara.
c, haigone kuisirwa muvibration frequency ye50Hz, amplitude inopfuura 0.5mm, nekuti iyo vibration amplitude yakakura kwazvo, zvichiita kuti mukati redunhu bhodhi remagetsi emagetsi welding, rinodonha.
d, mukati nekunze kwebhokisi remagetsi rinofanira kunge riri kure sezvinobvira kubva kune simba remagineti uye munda wemagetsi (senge control transformer, yakakura AC contactor, hombe capacitor, nezvimwewo) magetsi emagetsi, uye nyore kugadzira high harmonic (zvakadai sefrequency converter, servo driver, inverter, thyristor, etc.) control zvishandiso.
e, dzivirira kurodha munzvimbo dzine guruva resimbi, ngura, gasi rinopisa, hunyoro, nezvimwe
f, zviri nani kuisa zvikamu zvemagetsi muchikamu chepamusoro chebhokisi remagetsi, kure nechitubu chekupisa, uye funga kutonhora uye kunze kwekubuda kwemhepo kurapwa kana zvichidiwa.
2. Simba rekupa
a, kuti uwane nenzira kwayo PLC magetsi ekupa, kune mapoinzi ekuonana zvakananga.Zvakadai seMitsubishi PLC DC24V;AC voltage iri kuwedzera kuchinjika kupinza, huwandu hwacho ndeye 100V ~ 240V (inotenderwa huwandu 85 ~ 264), iyo frequency ndeye 50/60Hz, hapana chikonzero chekudhonza switch.Zvakanakisa kushandisa isolation transformer kupa PLC simba.
b, yePLC inobuda DC24V inowanzo shandiswa kune yakawedzera basa module magetsi emagetsi, ekunze matatu-waya sensor magetsi kana zvimwe zvinangwa, kunyangwe iyo inobuda DC24V magetsi ine yakawandisa uye mapfupi-sekiti ekudzivirira ekudzivirira uye mashoma kugona.Zvinokurudzirwa kuti yekunze matatu-waya sensor ishandise yakazvimiririra switching magetsi kudzivirira pfupi dunhu, izvo zvinogona kukonzera PLC kukuvadzwa uye kutungamirira kune zvisina basa dambudziko.
3. Wiring uye nzira
Kana wiring, inofanirwa kucheneswa nechando yekutsikisa piritsi uye yobva yabatanidzwa kune yekupinza uye inobuda materminal ePLC.Inofanira kuva yakasimba uye yakachengeteka.
Kana iyo yekupinza iri DC chiratidzo, seyakatenderedza kupindira masosi uye nezvimwe, inofanirwa kufunga yakadzivirirwa tambo kana yakamonyoroka peya, iyo online nzira haifanirwe kuenderana netambo yemagetsi uye haigone kuiswa mune imwecheteyo mutsara slot, mutsara chubhu, kudzivirira kupindira.
4. Pasi
Kuramba kwepasi hakufanirwe kuve kwakakura kupfuura 100 Ohms.Kana pane bhora repasi mubhokisi remagetsi, ribatanidze zvakananga kune pasi.Usaibatanidza nebhari yepasi mushure mekubatanidza kune iyo pasi bar yevamwe vatongi (zvakadai se frequency converters).
5. Vamwe
a, PLC haigone kumira yakamira, yakatwasuka zvinoenderana nekuisirwa, senge PLC iri kutsanya, zvinoenderana nekugadzikwa kwezvigadziko kuti zvisimbise, kwete kusunungurwa, kana paine vibration, kukuvadzwa kwezvinhu zvemukati zvemagetsi, kana njanji yekadhi, inofanirwa. sarudza inokwanisa kadhi njanji, tanga wadhonza kiyi wozopinda munjanji yekadhi, wobva wasundidzira kukiya, mushure mekunge mutongi wePLC atadza kukwira nekudzika.
b, kana iyo relay inobuda mhando, yayo inobuda poindi yazvino kugona ndeye 2A, saka mumutoro wakakura (senge DC clutch, solenoid vharafu), kunyangwe ikozvino iri pasi pe2A, inofanirwa kufunga nezve kushandisa relay shanduko.
Nguva yekutumira: May-20-2023