Mitsubishi Of Elevator Power Circuit (PS) Phau Ntawv Qhia Teeb Meem

1 Txheej txheem cej luam

Lub PS (Power Supply) Circuit Court muab lub zog tseem ceeb rau of elevator subsystems, categorized rau hauvpa hluav taws xob systemsthiabhluav taws xob xwm txheej ceev.

Cov Lus Qhia Tseem Ceeb

Sau ntawv:

• Cov qib hluav taws xob yuav txawv ntawm tus qauv of elevator (piv txwv li, #79 hauv tshuab-chav-tsawg elevator sib tw # 420 voltage).

• Ib txwm xa mus rau cov qauv qhia tshwj xeeb rau cov ntawv qhia tshwj xeeb rau cov lus qhia meej.

Cov Txheej Txheem Hluav Taws Xob

1. Transformer-raws li:

   • Cov tswv yim: 380V AC → Cov zis: Ntau qhov AC / DC voltages ntawm cov khoom siv thib ob.

   • Xws li rectifiers rau DC outputs (piv txwv li, 5V rau tswj boards).

   • Kev hloov pauv ntxiv tuaj yeem raug ntxiv rau cov cuab yeej muaj peev xwm tsaws lossis teeb pom kev nyab xeeb.

2. DC-DC Converter-raws li:

   • Tawm tswv yim: 380V AC → DC 48V → Hloov mus rau DC voltages.

   • Qhov txawv tseem ceeb:

     • Cov tshuab imported khaws AC lub zog rau kev tsaws / tsheb sab saum toj chaw nres tsheb.

     • Cov tshuab hauv tsev hloov pauv mus rau DC.

Emergency Power Systems

• (M)ELD (Emergency Landing Device):

  • Activates thaum fais fab tuag kom tsav lub elevator mus rau pem teb ze tshaj plaws.

  • Ob hom:

    1. Ua kom qeeb: Yuav tsum muaj kev pom zoo ntawm daim phiaj tsis ua haujlwm; cais daim phiaj fais fab kom txog thaum ua tiav.

    2. Instant thaub qab: Khaws DC lub npav hluav taws xob thaum muaj hluav taws xob.

Precharge / Discharge Circuits

• Muaj nuj nqi: Muaj kev nyab xeeb them / tso tawm DC txuas capacitors.

• Cheebtsam:

  • Precharge resistors (txheej inrush tam sim no).

  • Discharge resistors (dissipate residual zog tom qab kaw).

• Fault Handling: SaibMC Circuitseem rau regenerative system teeb meem.

Precharge Circuit Court schematic

2 Cov kauj ruam daws teeb meem dav dav

2.1 Pa hluav taws xob tsis ua haujlwm

Tej Teeb Meem:

1. Fuse/Circuit Breaker Tripping:

   • Cov kauj ruam:

     1. Disconnect lub faulty Circuit Court.

     2. Ntsuas qhov voltage ntawm lub hwj chim qhov chaw.

     3. Txheeb xyuas qhov hluav taws xob tiv thaiv nrog megohmmeter (> 5MΩ).

     4. Reconnect loads ib tug los ntawm ib tug los txheeb xyuas cov faulty Cheebtsam.

2. Tsawg voltage:

   • Cov kauj ruam:

     1. Cais lub hwj chim qhov chaw thiab ntsuas cov zis.

     2. Rau transformers: Kho cov tswv yim kais dej yog tias qhov voltage deviates.

     3. Rau DC-DC converters: Hloov lub tsev yog tias qhov kev tswj tsis tau.

3. EMI / Suab nrov cuam tshuam:

   • Kev txo qis:

     • Cais cov high/low voltage cables.

     • Siv orthogonal routing rau parallel kab.

     • Hauv av cable tais kom txo tau hluav taws xob.

2.2 Precharge / Discharge Circuit Faults

Cov tsos mob:

1. Abnormal Charging Voltage:

   • Xyuas precharge resistors rau overheating los yog cua tshuab cua sov fuses.

   • Ntsuas qhov hluav taws xob poob ntawm cov khoom (piv txwv li, resistors, cables).

2. Lub Sijhawm Them Ntxiv:

   • Tshawb xyuas cov capacitors, ntsuas qhov ntsuas, thiab cov kev tso tawm (piv txwv li, rectifier modules, busbars).

Diagnostic cov kauj ruam:

1. Tshem tawm tag nrho cov kev sib txuas DCP (DC Positive).

2. Ntsuas precharge Circuit Court tso zis.

3. Reconnect DCP circuits incrementally kom nrhiav tau txoj hauv kev txawv txav.

2.3 (M)ELD System Faults

Tej Teeb Meem:

1. (M) ELD Ua Tsis Tau Pib:

   • Txheeb xyuas #79 lub teeb liab hluav taws xob thaum lub caij tsis ua haujlwm.

   • Xyuas cov roj teeb voltage thiab kev sib txuas.

   • Tshawb xyuas tag nrho cov tswj cov keyboards (piv txwv li hauv tshuab-chav-tsawg teeb tsa).

2. Qhov txawv txav (M) ELD Voltage:

   • Ntsuam xyuas roj teeb kev noj qab haus huv thiab kev them nqi hluav taws xob.

   • Rau cov tshuab nrog boost transformers: Xyuas cov tswv yim / tso zis voltage kais.

3. Xauv Xauv Tsis Taus:

   • Tshawb xyuas kev nyab xeeb relays (piv txwv li, #89) thiab lub qhov rooj teeb liab.

3 Kev Ua Phem & Kev daws teeb meem

3.1 Voltage Abnormalities (C10 / C20, H10 / H20, S79 / S420)

3.2 Lub Rooj Tswjhwm Saib tsis ua haujlwm rau lub hwj chim

3.3 Transformer puas

3.4 (M)ELD ua haujlwm tsis zoo

3.5 Precharge / Discharge Circuit Court teeb meem

Cov ntaub ntawv sau tseg:
Phau ntawv qhia no ua raws li Mitsubishi elevator qauv. Ib txwm ua raws li cov txheej txheem kev nyab xeeb thiab sab laj cov ntawv qhia kev paub txog cov qauv tshwj xeeb.

© Elevator Cov Ntaub Ntawv Kho Cov Ntaub Ntawv