Mitsubishi Elevator Hoistway Signal Circuit (HW) Troubleshooting Guide
Hoistway Signal Circuit (HW)
1 Muchidimbu
TheHoistway Signal Circuit (HW)inosanganisiraleveling switchuyeterminal switchiyo inopa nzvimbo yakakosha uye ruzivo rwekuchengetedza kune elevator control system.
1.1 Kuchinja Kuchinja (PAD Sensors)
-
Function: Wona nzvimbo yemotokari yekumisikidza pasi, nzvimbo dzekushanda kwegonhi, uye nzvimbo dzekuisa zvakare.
-
Common Signal Combinations:
-
DZD/DZU: Main door zone yekuona (mota mukati me ± 50mm yefloor level).
-
RLD/RLU: Re-leveling zone (yakamanikana kupfuura DZD/DZU).
-
FDZ/RDZ: Mberi/kumashure masaini enzvimbo yemasuo (yemaviri-gonhi masisitimu).
-
-
Mutemo Wakakosha:
-
-
Kana RLD/RLU iri kushanda, DZD/DZUanofanirashingairawo. Kutyora kunokonzeresa kuchengetedzwa kwenzvimbo yesuwo (onaSF Circuit)
-
-
1.2 Terminal switches
| Type | Function | Safety Level |
|---|---|---|
| Deceleration | Inodzikamisa kumhanya kwemotokari pedyo nemateshi; inobatsira kugadzirisa nzvimbo. | Kudzora chiratidzo (soft stop). |
| Limit | Inodzivirira kudarika pamaterminals (semuenzaniso, USL/DSL). | Sachigaro chekuchengetedza (hard stop). |
| Final Limit | Yekupedzisira-resort mechanical stop (semuenzaniso, UFL/DFL). | Inocheka #5/#LB simba. |
Cherechedza: Machine-room-less (MRL) elevator inogona kudzorera epamusoro terminal switch semanyorero ekushanda.
2 General Troubleshooting Matanho
2.1 Leveling Shandura Mhosho
Zviratidzo:
-
Kusakwana kwechiyero (± 15mm kukanganisa).
-
Kakawanda kukwirisa zvakare kana "AST" (Abnormal Stop) kukanganisa.
-
Kunyoreswa kwepasi kusiri iko.
Diagnostic Matanho:
-
PAD Sensor Check:
-
Simbisa musiyano pakati pePAD uye magineti vane (5-10mm).
-
Test sensor kubuda ine multimeter (DC 12-24V).
-
-
Signal Validation:
-
Shandisa P1 board'sdebug modekuratidza PAD chiratidzo musanganiswa sezvo mota ichipfuura pasi.
-
Muenzaniso: Code "1D" = DZD inoshanda; "2D" = DZU inoshanda. Mismatches inoratidza masensor asina kukwana.
-
-
Wiring Inspection:
-
Tarisa uone kana tambo dzakatyoka/ dzakavharirwa pedyo nemamotor kana mitsara yemagetsi.
-
2.2 Terminal Shandura Zvikanganiso
Zviratidzo:
-
Emergency inomira pedyo nematerminal.
-
Terminal deceleration isiriyo.
-
Kusakwanisa kunyoresa terminal pasi ("nyora layer" kutadza).
Diagnostic Matanho:
-
Bata-Type Shanduko:
-
Gadzirisaactuator imbwakureba kuti ive nechokwadi chekusimudzira panguva imwe chete yekuchinja kwepedyo.
-
-
Kwete-Contact (TSD-PAD) Swichi:
-
Simbisa magnet plate sequence uye nguva (shandisa oscilloscope yekuongorora chiratidzo).
-
-
Signal Tracing:
-
Kuyera voltage paW1/R1 bhodhi zviteshi (semuenzaniso, USL = 24V kana yamutswa).
-
3 Zvakajairwa Mhosho & Mhinduro
3.1 Kusakwanisa Kunyoresa Floor Height
| Chikonzero | Solution |
|---|---|
| Yakanganisa Terminal Switch | - YeTSD-PAD: Simbisa kudzika kwemagineti ndiro yekuisa (≥20mm). -Kune switch switch: Gadzirisa USR/DSR actuator chinzvimbo. |
| PAD Signal Error | Simbisa DZD/DZU/RLD/RLU zvikwangwani zvinosvika pabhodhi rekutonga; tarisa PAD kurongeka. |
| Board Fault | Tsiva P1/R1 bhodhi kana kuvandudza software. |
3.2 Otomatiki Terminal Re-Leveling
| Chikonzero | Solution |
|---|---|
| TSD Misalignment | Ongorora kuisirwa kweTSD pamifananidzo (kushivirira: ± 3mm). |
| Rope Slippage | Ongorora traction sheave groove kupfeka; chinja tambo kana ikatsvedza>5%. |
3.3 Emergency Stop at Terminals
| Chikonzero | Solution |
|---|---|
| Zvisizvo TSD Sequence | Simbisa magineti plate coding (semuenzaniso, U1→U2→U3). |
| Actuator Imbwa Kukanganisa | Rongedza hurefu kuti uve nechokwadi chekupindirana nemachinjiro ekugumira. |
4. Dhiyagiramu
Mufananidzo 1: PAD Signal Timing
Mufananidzo 2: Terminal Switch Layout
Zvinyorwa Zvinyorwa:
Gwaro iri rinoenderana neMitsubishi elevator zviyero. Kune MRL masisitimu, tungamira TSD-PAD magineti plate sequencing cheki.
© Elevator Maintenance Technical Documentation