Of Elevator Main Electrical Circuit Troubleshooting Guide - Lub ntsiab Circuit Court (MC)

1 Txheej txheem cej luam

MC Circuit Court muaj peb ntu:input seem,lub ntsiab Circuit Court, thiabtso zis seem.

Nqe lus nkag

• Pib los ntawm lub hwj chim input terminals.

• Hla dhauEMC cov khoom(filters, reactors).

• Txuas mus rau inverter module ntawm kev tswj contactor#5(los yog rectifier module nyob rau hauv lub zog regeneration systems).

Main Circuit Tshooj

• Cov khoom tseem ceeb muaj xws li:

  • Rectifier: Hloov AC rau DC.

    • Uncontrolled Rectifier: Siv cov txuas hniav diode (tsis muaj theem ua ntu zus).

    • Tswj Rectifier: Siv IGBT/IPM modules nrog theem-sensitive tswj.

  • DC Link:

    • Electrolytic capacitors (series-txuas rau 380V systems).

    • Voltage-balancing resistors.

    • Xaiv tauregeneration resistor(rau cov txheej txheem uas tsis yog rov tsim dua tshiab kom dissipate ntau zog).

  • Inverter: Hloov DC rov qab mus rau qhov sib txawv-zaus AC rau lub cev muaj zog.

    • Cov theem tso zis (U, V, W) dhau los ntawm DC-CTs rau kev tawm tswv yim tam sim no.

Ntu ntu tso zis

• Pib los ntawm cov zis inverter.

• Dhau los ntawm DC-CTs thiab xaiv EMC Cheebtsam (reactors).

• Txuas rau lub cev muaj zog terminals.

Ntsiab Lus:

• Polarity: Xyuas kom meej qhov "P" (zoo) thiab "N" (tsis zoo) kev sib txuas rau capacitors.

• SNUBBER Circuits: Nruab rau ntawm IGBT / IPM modules txhawm rau txhawm rau qhov hluav taws xob tawg thaum lub sijhawm hloov.

• Tswj Cov Teeb Meem: PWM signals kis tau los ntawm kev sib tw-pair cables kom txo qis kev cuam tshuam.

Daim duab 1-1: Uncontrolled Rectifier Main Circuit

2 Cov kauj ruam daws teeb meem dav dav

2.1 Cov Cai rau MC Circuit Fault Diagnosis

1. Symmetry Check:

   • Xyuas kom tseeb tias tag nrho peb theem muaj cov hluav taws xob zoo tib yam (kuj, inductance, capacitance).

   • Ib qho kev tsis txaus ntseeg qhia tau hais tias muaj kev ua txhaum (xws li, puas diode hauv rectifier).

2. Theem Sequence Ua raws:

   • Ua raws li cov kab kos kom nruj.

   • Xyuas kom tswj qhov system theem nrhiav kom haum nrog lub ntsiab Circuit Court.

2.2 Qhib Kaw-Loop Control

Txhawm rau cais cov faults nyob rau hauv kaw-loop systems:

1. Disconnect Traction Tsav:

   • Yog hais tias lub kaw lus ua haujlwm ib txwm tsis muaj lub cev muaj zog, qhov txhaum nyob hauv lub cev muaj zog lossis cov cables.

   • Yog tias tsis yog, tsom mus rau lub txee tswj (inverter / rectifier).

2. Saib xyuas Contactor Ua Haujlwm:

   • Rau regenerative systems:

     • Yog#5(input contactor) mus ncig ua ntej#LB(brake contactor) koom nrog, xyuas lub rectifier.

     • Yog#LBengages tab sis muaj teeb meem, xyuas lub inverter.

2.3 Fault Code Analysis

• P1 Board Codes:

  • Piv txwv li,E02(overcurrent),E5(DC txuas overvoltage).

  • Clear keeb kwm txhaum cai tom qab txhua qhov kev xeem kom paub tseeb tseeb.

• Regenerative System Codes:

  • Tshawb xyuas theem kev sib raug zoo ntawm daim phiaj voltage thiab cov khoom siv tam sim no.

2.4 (M)ELD Hom Faults

• Cov tsos mob: Sudden nres thaum lub sijhawm ua haujlwm roj teeb.

• Keeb kwm:

  • Cov ntaub ntawv hnyav load tsis raug.

  • Kev sib txawv nrawm cuam tshuam qhov voltage tshuav.

• Tshawb xyuas:

  • Txheeb xyuas cov kev ua ntawm contactor thiab cov zis voltage.

  • Saib xyuas P1 pawg thawj coj saib ua ntej (M)ELD kaw.

2.5 Traction Motor Fault Diagnosis

3 Kev Ua Phem & Kev daws teeb meem

3.1 PWFH(PP) Indicator Off or Flashing

• Ua rau:

  1. Phase poob los yog tsis raug.

  2. Faulty tswj board (M1, E1, los yog P1).

• Kev daws teeb meem:

  • Ntsuas input voltage thiab raug theem kev txiav txim.

  • Hloov lub rooj tsavxwm tsis zoo.

3.2 Magnetic Pole Learning Failure

• Ua rau:

  1. Encoder misalignment (siv dial taw qhia los xyuas concentricity).

  2. Kev puas tsuaj encoder cables.

  3. Faulty encoder los yog P1 board.

  4. Kev teeb tsa tsis raug (piv txwv li, traction motor configuration).

• Kev daws teeb meem:

  • Reinstall encoder, hloov cables/boards, los yog kho qhov tsis.

3.3 Ncua E02 (Overcurrent) Fault

• Ua rau:

  1. Module cua txias tsis zoo (clogged kiv cua, tsis sib xws thermal paste).

  2. Brake misadjustment (qhov sib txawv: 0.2-0.5mm).

  3. Tsis zoo E1 board lossis IGBT module.

  4. Lub cev muaj zog winding luv-circuit.

  5. Faulty tam sim no transformer.

• Kev daws teeb meem:

  • Ntxuav cov kiv cua, rov muab tshuaj txhuam thermal, kho cov brakes, lossis hloov cov khoom siv.

3.4 General Overcurrent Faults

• Ua rau:

  1. Driver software mismatch.

  2. Asymmetric nres tso tawm.

  3. Lub cev muaj zog rwb thaiv tsev tsis ua haujlwm.

• Kev daws teeb meem:

  • Hloov kho software, synchronize brakes, lossis hloov lub cev muaj zog windings.

Cov ntaub ntawv sau tseg:
Phau ntawv qhia no ua raws li Mitsubishi of the elevator technical standards. Ib txwm ua raws li cov txheej txheem kev nyab xeeb thiab xa mus rau cov ntaub ntawv raug cai rau cov ntsiab lus tshwj xeeb.

© Elevator Cov Ntaub Ntawv Kho Cov Ntaub Ntawv