Phau Ntawv Qhia Kom Paub Txog Mitsubishi Elevator Kev Sib Txuas Lus Circuits (OR): Cov Txheej Txheem, Architecture & Troubleshooting

1 Txheej txheem cej luam of Elevator Communication Systems

Of elevator kev sib txuas lus circuits (OR) kom ntseeg tau cov ntaub ntawv sib pauv ntawm cov khoom tseem ceeb, cuam tshuam ncaj qha rau kev ua haujlwm kev nyab xeeb thiab kev ua haujlwm. Phau ntawv qhia no npogCAN tsheb npavthiabRS-series raws tu qauv, muab kev nkag siab txog kev saib xyuas thiab SEO-kev daws teeb meem zoo tshaj plaws.

1.1 CAN Bus System

Cov yam ntxwv tseem ceeb

• Topology: Multi-node tsheb npav network txhawb kev sib txuas lus puv-duplex.

• Cov qauv hluav taws xob:

  • Differential Signaling: CAN_H (High) thiab CAN_L (Low) twisted-pair cables rau kev tiv thaiv suab nrov.

  • Voltage theem: Dominant (CAN_H=3.5V, CAN_L=1.5V) vs. Recessive (CAN_H=2.5V, CAN_L=2.5V).

• Lub luag haujlwm tseem ceeb:

  • Tus lej ID qis dua = qhov tseem ceeb dua (piv txwv li, ID 0 > ID 100).

  • Kev daws teeb meem sib tsoo los ntawm kev rho tawm tsis siv neeg.

Daim ntawv thov

• Kev saib xyuas kev nyab xeeb ntawm lub sijhawm

• Pab pawg tswj kev sib koom tes

• Fault code kis tau tus mob

Cov Kev Qhia Tshwj Xeeb

1.2 RS-Series Kev Sib Txuas Lus raws tu qauv

Kev sib piv raws tu qauv

Kev siv tseem ceeb

• Qauv: RS-485: Hall hu systems, tsheb raws li txoj cai tawm tswv yim.

• Qauv: RS-232: Kho lub computer interfaces.

Cov Txheej Txheem Txhim Kho

• Sivtwisted shielded cables(AWG 22 los yog tuab dua).

• Teem caij npav xaus nrog120Ω resistors.

• Zam lub hnub qub topologies; ua ntejdaisy-chain txuas.

1.3 of the elevator Communication Architecture

Plaub Qhov Tseem Ceeb Subsystems

1. Pawg Tswj: Coordinates ntau lub elevator ntawm CAN npav.

2. Tsheb Systems: Tswj cov lus txib sab hauv ntawm RS-485.

3. Hall Chaw nres tsheb: tuav sab nraud hu; xav tauHall lub zog lub thawv(H10-H20).

4. Cov Haujlwm Pabcuam: Kev nkag mus tua hluav taws, kev saib xyuas tej thaj chaw deb.

Tswj fais fab

1.4 Phau ntawv qhia daws teeb meem

1. Kev Tshawb Fawb:

   • Ntsuas lub npav voltage (CAN: 2.5-3.5V; RS-485: ± 1.5-5V).

   • Txheeb xyuas qhov kev txiav tawm (120Ω rau CAN / RS-485).

2. Kev tsom xam:

   • Siv oscilloscope txhawm rau txheeb xyuas waveform distortion.

   • Saib xyuas CAN tsheb npav thauj khoom (

3. Kev kuaj cais tawm:

   • Disconnect nodes los txheeb xyuas cov faulty segments.

   • Hloov cov khoom xav tias (xws li, lub thawv fais fab).

Daim duab 1: Elevator Communication System Diagram

2 Cov kauj ruam daws teeb meem dav dav

Kev sib txuas lus tsis raug hauv lub tshuab of elevator tuaj yeem tshwm sim hauv ntau txoj hauv kev, tab sis ua raws li kev tsim qauv ua kom muaj txiaj ntsig zoo thiab kev daws teeb meem. Hauv qab no yog cov kauj ruam ua kom zoo rau kev txheeb xyuas thiab daws teeb meem OR Circuit Court, haum rau SEO thiab kev paub meej.

2.1 Txheeb xyuas Faulty Communication Bus ntawm P1 Board yuam kev Codes

Cov Ntsiab Cai:

1. Xyuas P1 Board Codes:

   • Cov txheej txheem qub: Cov lej dav dav (xws li "E30" rau kev sib txuas lus yuam kev).

   • Cov txheej txheem niaj hnub: Cov lej nthuav dav (xws li "CAN Bus Timeout" lossis "RS-485 CRC yuam kev").

2. Muab qhov tseem ceeb tshaj qhov kev cais tawm:

   • Piv txwv li: Ib qho "Group Control Link Failure" code qhia CAN teeb meem tsheb npav, thaum "Hall Call Timeout" taw qhia rau RS-485 txhaum.

2.2 Tshawb xyuas cov kab hluav taws xob & cov ntaub ntawv

Kev Ntsuam Xyuas Tseem Ceeb:

1. Kev sim txuas ntxiv:

   • Siv ib lub multimeter los xyuas qhov tseeb ntawm cov hlau. Rau cov cables ntev, tsim ib lub voj nrog cov xov hlau seem rau kev ntsuas kom raug.

2. Rwb thaiv tsev Resistance:

   • Ntsuas nrog megohmmeter (> 10MΩ rau RS-485;> 5MΩ rau CAN tsheb npav).

   • Tswv yim: High-frequency signals mimic short circuits yog tias rwb thaiv tsev degrades.

3. Twisted Pair Specifications:

   • Txheeb xyuas qhov sib tw twist (tus qauv: 15-20mm rau CAN; 10-15mm rau RS-485).

   • Zam tsis txhob siv cov kab hluav taws xob tsis zoo-txawm tias luv luv cuam tshuam cov teeb liab kev ncaj ncees.

2.3 Diagnose Node Teeb meem ntawm Status LEDs

Txheej txheem:

1. Nrhiav Faulty Nodes:

   • CAN nodes: Kos "ACT" (kev ua si) thiab "ERR" LEDs.

   • RS-485 nodes: Txheeb xyuas "TX/RX" blink rates (1Hz = normal).

2. Common LED Qauv:

   LED State	Txhais lus
   ACT tsis tu ncua, ERR tawm	Node ua haujlwm
   ERR ntsais muag	CRC yuam kev lossis ID tsis sib haum
   ACT/RX tawm	Fais fab lossis teeb liab poob

2.4 Txheeb xyuas Node Settings & Termination Resistors

Configuration Checks:

1. Node ID Validation:

   • Xyuas kom IDs phim cov haujlwm hauv pem teb (piv txwv li, Node 1 = 1st pem teb).

   • Cov ID tsis sib haum ua rau tsis lees txais pob ntawv lossis kev sib tsoo tsheb npav.

2. Termination Resistors:

   • Yuav tsum tau ntawm cov chaw nres tsheb npav (120Ω rau CAN / RS-485).

   • Piv txwv li: Yog tias qhov deb tshaj plaws hloov pauv, hloov qhov resistor.

Tej Teeb Meem:

• Kev txiav tsis tiav → Cov teeb liab cuam tshuam → Cov ntaub ntawv tsis ncaj ncees.

• Tus nqi resistor tsis raug → Voltage poob → Kev sib txuas lus tsis ua haujlwm.

2.5 Kev txiav txim siab ntxiv

1. Firmware Consistency:

   • Tag nrho cov nodes (tshwj xeeb yog cov chaw nres tsheb) yuav tsum khiav cov software zoo ib yam.

2. Hardware Compatibility:

   • Hloov cov laug cam nrog qhov sib txuam (xws li, R1.2 boards rau R1.2 nodes).

3. Lub zog cuam tshuam:

   • Ntsuas AC qhov chaw (xws li, teeb pom kev zoo circuits) rau EMI siv lub spectrum analyzer.

   • Nruab ferrite cores ntawm kev sib txuas lus cables ze rau cov khoom siv hluav taws xob siab.

3 Kev Sib Txuas Lus Tsis Txaus

3.1 Fault: Tsheb Pem Hauv Ntej Khawm Tsis teb

Tej Yam Ua Tau & Kev daws teeb meem:

3.2 Fault: Hall Hu Khawm Tsis teb

Tej Yam Ua Tau & Kev daws teeb meem:

3.3 Fault: Nws pib-tso tseg ntawm kev sau npe hu thaum ua haujlwm

Tej Yam Ua Tau & Kev daws teeb meem:

Cov Lus Qhia Txog Kev Kho Mob

1. Kev kuaj kab mob:

   • Siv atime-domain reflectometer (TDR)txhawm rau nrhiav cov kab tsis raug hauv cov kab ntev ntev.

2. Kev kuaj xyuas hauv av:

   • Ntsuas qhov voltage ntawm kev sib txuas lus cable shields thiab hauv av (

3. Firmware Hloov tshiab:

   • Ib txwm phim board firmware versions (piv txwv li, P1 v3.2 nrog lub qhov rooj tswj v3.2).