Elevator Main Electrical Circuit Troubleshooting Guide - Main Circuit (MC)

1 Muchidimbu

Iyo MC yedunhu ine zvikamu zvitatu:chikamu chekupinza,chikamu chikuru chedunhu,uyechikamu chekubuda.

Input Chikamu

• Inotangira kubva pamagetsi ekuisa magetsi.

• Inopfuura nepakatiEMC zvikamu(sefa, reactor).

• Inobatanidza kune inverter module kuburikidza nekudzora contactor#5(kana rectifier module mune simba regeneration system).

Main Circuit Chikamu

• Core components zvinosanganisira:

  • Rectifier: Inoshandura AC kuita DC.

    • Uncontrolled Rectifier: Inoshandisa diode mabhiriji (hapana chikamu chinoteerana chinodiwa).

    • Controlled Rectifier: Inoshandisa IGBT/IPM modules ine phase-sensitive control.

  • DC Link:

    • Electrolytic capacitors (yakatevedzana-yakabatana kune 380V masisitimu).

    • Voltage-kuenzanisa resistors.

    • Optionalregeneration resistor(kune asiri-regenerative systems kuti aparadze simba rakawandisa).

  • Inverter: Inoshandura DC kudzokera kune inoshanduka-frequency AC yemota.

    • Zvikamu zvekubuda (U, V, W) zvinopfuura neDC-CTs yemhinduro dzazvino.

Output Chikamu

• Inotangira kubva kune inverter kubuda.

• Inopfuura neDC-CTs uye inosarudzika EMC zvikamu (mareactor).

• Inobatanidza kumagetsi emagetsi.

Key Notes:

• Polarity: Iva nechokwadi chekuti "P" (positive) uye "N" (negative) yekubatanidza kune capacitor.

• SNUBBER Circuits: Yakaiswa paIGBT/IPM modules kudzvinyirira voltage spikes panguva yekuchinja.

• Kudzora Zviratidzo: PWM masiginecha anofambiswa kuburikidza neakamonyoroka-matambo tambo kuti aderedze kupindira.

Mufananidzo 1-1: Isingadzoreki Rectifier Main Circuit

2 General Troubleshooting Matanho

2.1 Misimboti yeMC Circuit Fault Diagnosis

1. Symmetry Check:

   • Wona kuti ese matatu zvikamu ane zvakafanana magetsi paramita (resistance, inductance, capacitance).

   • Chero kusaenzana kunoratidza kukanganisa (semuenzaniso, yakakuvadzwa diode mukugadzirisa).

2. Phase Sequence Compliance:

   • Tevera wiring diagrams zvakasimba.

   • Ita shuwa control system phase yekuona inoenderana neiyo main circuit.

2.2 Kuvhura Yakavharwa-Loop Kudzora

Kuparadzanisa zvikanganiso muakavharika-loop masisitimu:

1. Bvisa Traction Motor:

   • Kana iyo system ichishanda zvakajairika pasina mota, kukanganisa kuri mumotokari kana tambo.

   • Kana zvisiri, tarisa pane yekudzora kabati (inverter / rectifier).

2. Monitor Contactor Zviito:

   • Kune regenerative masisitimu:

     • Kana#5(input contactor) nzendo pamberi#LB(brake contactor) inobata, tarisa rectifier.

     • Kana#LBinobata asi nyaya dzichiramba, tarisa inverter.

2.3 Fault Code Analysis

• P1 Board Codes:

  • E.g.,E02(overcurrent),E5(DC link overvoltage).

  • Bvisa zvikanganiso zvezvakaitika mushure mekuedza kwega kwega kwekuongorora kwakarurama.

• Regenerative System Codes:

  • Tarisa kurongeka kwechikamu pakati pegrid voltage uye yekupinda ikozvino.

2.4 (M)ELD Mode Zvikanganiso

• Zviratidzo: Kamwe kamwe inomira panguva yekushanda kwebhatiri-powered.

• Zvikonzero:

  • Data yekuyera mutoro isiriyo.

  • Speed ​​​​kutsauka kunovhiringa voltage balance.

• Check:

  • Verify contactor zviito uye goho voltage.

  • Monitor P1 bhodhi makodhi pamberi (M) ELD kudzima.

2.5 Traction Motor Fault Diagnosis

3 Zvakajairwa Mhosho & Mhinduro

3.1 PWFH(PP) Chiratidzo Yakadzima kana Kupenya

• Zvinokonzera:

  1. Kurasikirwa kwechikamu kana kutevedzana kusina kururama.

  2. Yakashata control board (M1, E1, kana P1).

• Solutions:

  • Eresa voltage yekupinda uye kurongeka kwechikamu.

  • Dzorera bhodhi rakaremara.

3.2 Magnetic Pole Kutadza Kudzidza

• Zvinokonzera:

  1. Encoder misalignment (shandisa dial chiratidzo kutarisa concentricity).

  2. Tambo dze encoder dzakakuvadzwa.

  3. Yakanganisa encoder kana P1 bhodhi.

  4. Zvisizvo parameter marongero (semuenzaniso, traction mota kumisikidza).

• Solutions:

  • Reinstall encoder, chinja tambo/mabhodhi, kana gadzirisa ma parameter.

3.3 Kakawanda E02 (Overcurrent) Mhosva

• Zvinokonzera:

  1. Yakashata module kutonhora (yakavharwa mafeni, isina kuenzana yekupisa paste).

  2. Kukanganisa kwebhureki (gap: 0.2-0.5mm).

  3. Yakaremara E1 bhodhi kana IGBT module.

  4. Motor winding short-circuit.

  5. Yakashata ikozvino transformer.

• Solutions:

  • Chenesa mafeni, shandisazve thermal paste, gadzirisa mabhureki, kana kutsiva zvinhu.

3.4 General Overcurrent Mhosho

• Zvinokonzera:

  1. Mutyairi software kusawirirana.

  2. Asymmetric brake release.

  3. Kutadza kwemotor insulation.

• Solutions:

  • Gadziridza software, wiriranisa mabhureki, kana kutsiva mota windings.

Zvinyorwa Zvinyorwa:
Gwaro iri rinoenderana neMitsubishi elevator tekinoroji zviyero. Gara uchitevera maprotocol ekuchengetedza uye tarisa kune zvinyorwa zvepamutemo zvemuenzaniso-chaiwo ruzivo.

© Elevator Maintenance Technical Documentation