Munzvimbo yeindasitiri, panogona kunge paine nyaya dzakawanda dzinogona kuitika, uye kuisirwa kwakaringana uye nzira dzekuisa waya dzakakosha kuitira kuti uve nechokwadi chekuchengetedza mukugadzirwa.Kuburikidza nechidzidzo chemazuva ano, tichaongorora pamwe chete maitiro ekuona kuchengetedzwa mukugadzirwa kwemaindasitiri.
1. Tsanangudzo yeDambudziko
Mutengi wekupedzisira aishandisa iyo 485 yekutaurirana module CT-5321 yekutaurirana ine frequency inverter.Vakasangana nemamiriro ezvinhu apo makadhi matanhatu ekutaurirana mune frequency inverter akapisa zvakateerana.Mushure mekutsiva iyo inverter makadhi katanhatu (nguva yega yega zvichikonzera kupera simba), iyo CT-5321 yekutaurirana module pachayo yakatsva pachiitiko chechitanhatu.
Kudzivirira kuwedzera kurasikirwa kwevatengi, mainjiniya eODOT akashanyira saiti iyi kubatsira mukugadzirisa matambudziko.
2. Pa-site Troubleshooting
Mushure mekunyatsotariswa uye kuongororwa nemainjiniya ari pasaiti, zvinotevera zvakaonekwa:
(1) Kune gumi nemana ekudzora makabati pa-saiti, imwe neimwe ine maviri frequency inverters uye imwe simba mita inoda kutaurirana neCT5321.
(2) Iyo GND ye frequency inverter yakabatana kune inodzivirira layer yemutsetse wechiratidzo.
(3) Pamusoro pekuongorora wiring ye frequency inverter, yakawanikwa kuti nzvimbo yekukurukurirana uye inverter pasi haina kuparadzaniswa.
(4) Waya yakadzivirirwa yeRS485 chiratidzo chemutsara haina kubatana pasi.
(5) Iyo RS485 yekutaurirana terminal resistors haina kubatana.
3. Cause Analysis
Zvichienderana nekutarisa uye kuongororwa kweiyo-saiti mamiriro, mainjiniya akapa zvinotevera zviono:
(1) Zvikamu zvakakuvadzwa uye ma module haana kuratidza zviratidzo zvekukuvadzwa kwakajairwa ne electrostatic discharge (ESD) kana kuvhiya.Kusiyana neESD kana kukuvara kwekuvhiya, izvo kazhinji zvisingakonzere kupiswa kwezvinhu, zvikamu zvakapiswa muCT-5321 zvaive zvine hukama neRS485 port's electrostatic kuchengetedza mudziyo.Chishandiso ichi chinowanzo kuve neDC yekuputsa voltage inotenderera 12V.Nokudaro, zvakaonekwa kuti magetsi pabhazi reRS485 akanga adarika 12V, zvichida nekuda kwekuiswa kwe24V magetsi.
(2) Bhazi reRS-485 raive nemidziyo yakawanda-yepamusoro-simba nemamita emagetsi.Mukushaikwa kwekuzviparadzanisa kwakakodzera uye kudzika pasi, zvishandiso izvi zvinogona kugadzira mutsauko wakakura ungangoita.Kana uyu mutsauko unokwanisa uye simba zvakakura, zvinokwanisika kugadzira loop paRS485 chiratidzo mutsara, zvichitungamira mukuparadzwa kwemidziyo pamwe neiyi loop.
4. Solution
Mukupindura kunyaya idzi dzepa-saiti, mainjiniya eODOT akakurudzira mhinduro dzinotevera:
(1) Bvisa chiratidzo chekudzivirira chivharo kubva kune inverter GND uye uibatanidze zvakasiyana kune chiratidzo chepasi.
(2) Gadzika iyo inverter midziyo, paradzanisa chiratidzo chepasi, uye uve nechokwadi chekudzika kwakakodzera.
(3) Wedzera materminal resistors eRS485 kutaurirana.
(4) Isa RS-485 zvipingaidzo zvekuzviparadzanisa nevamwe pamidziyo paRS-485 bhazi.
5. Rectification diagram
Kuitwa kwematanho ekugadzirisa ari pamusoro anogona kudzivirira zvinobudirira matambudziko akafanana kuti asaitike zvakare, kuve nechokwadi chekufarira uye kuchengetedzeka kwevatengi.
Panguva imwecheteyo, ODOT inoyeuchidzawo vatengi kuti vateerere kune dzimwe nyaya dzakafanana mukugadzirisa nekugadzirisa zvirongwa zvekutaurirana, kusimbisa kugadzirisa nekugadzirisa michina, uye kuvimbisa kugadzikana uye kuvimbika kwegadziriro.
Nguva yekutumira: Feb-01-2024
