變頻器電源板 58907294H
變頻器電源板 58907294H
1．原理圖
2．工作過程分析
轉(zhuǎn)換開關(guān)SA處在“正轉(zhuǎn)”位置，電動機(jī)正轉(zhuǎn)；轉(zhuǎn)換開關(guān)SA處在“反轉(zhuǎn)”位置，電動機(jī)的相序改變，電動機(jī)反轉(zhuǎn)；轉(zhuǎn)換開關(guān)SA處在“停止”位置，電源被切斷，電動機(jī)停車。
電動機(jī)處于正轉(zhuǎn)狀態(tài)時，欲使之反轉(zhuǎn)，必須把手柄扳到“停止”位置，先使電動機(jī)停轉(zhuǎn)，然后再把手柄扳至“反轉(zhuǎn)”位置。如直接由“正轉(zhuǎn)”扳至“反轉(zhuǎn)”，因電源突然反接，會產(chǎn)生很大的沖擊電流，燒壞轉(zhuǎn)換開關(guān)和電動機(jī)定子繞組。
3．電氣線路特點(diǎn)
優(yōu)點(diǎn)：所用電器少，控制簡單
缺點(diǎn)：頻繁換向時，操作不方便，無欠壓，零壓保護(hù)，只能適合于容量5.5KW以下的電動機(jī)的控制。
IFM EFFECTOR PHOTOELECTRIC SENSOR OG5044
YOKOGAWA 0-800 AC AMPERES METER 60RY3434 / 288 1990
HEIDENHAIN 294 742 05 640MM LINEAR ENCODER, LS 176
SONAC PROXIMITY SENSOR MODEL-11L
DARKFIELD QUEBEC 40W 115V 60Hz COLONY COUNTER 3325
EMECANIQUE XTA-A159115 PROXIMITY SENSOR, NNB
NAMCO DURAPROX PROXIMITY SENSOR EE510-9104
OMRON * PHOTO MICRO SENSSOR * WW-SPW421
BANNER RETRO SENSOR RSBLV 25547 NIB
IFM ELECTRONIC PHOTOELECTRIC SENSOR 005000 NNB
EMECANIQUE 110-120V INDUCTIVE PROXIMITY SENSOR XSB-A25513
EATON CUTLER-HAMMER 20-264VAC, 15-30VDC PHOTOELECTRIC SENSOR 11101AQD03
KOBOLD SPST FLOW METER VKM / 41R57 NNB
GP:50 231-VE/GS/FB PRESSURE TRANSDUCER, NIB
OHMART VEGA VEGA PULS 65.UX SENSOR ASSEMBLY PS 65.UXMNPHKNA
-TRU 0-200 DEGREES-F THERMOMETER
DIXON BOSS 0-100PSI PRESSURE GUAGE NIB GC225
LORENZ MESSTECHNIK TORQUE 100NM
DELPHI PS10073 MAP POSITION SENSOR, NIB
DELPHI PS10086 MAP POSITION SENSOR, NIB
OTHER * BANNER PHOTOELECTRIC EMITTER * SMI306EQ
BANNER MULTI-BEAM LOGIC MODULE 26665
DELPHI TS10145 TEMPERATURE SENSOR, NIB
DELPHI TS10154 TEMPERATURE SENSOR, NIB
DELPHI TS10081 TEMPERATURE SENSOR, NIB
SCHUNK INDUCTIVE PROXIMITY SENSOR 0301585 NIB
SMC PRESSURE SWITCH PSE100-A SENSOR
TAKAGI 0-1000 0-3600 CLASS 2.5 RPM GAUGE KMV-80-BJ
FLOW PLUS FLUID PRODUCTS LS-5100-BBNO FLOAT SWITCH, NNB
STI MINISAFE B LIGHT CURTAIN TRANSMITTER MS436BX
VICKERS ELECTRICAL PRESSURE INDICATOR P-230304-01B NIB
PULSOTRONIC 20..250VAC PROXIMITY SWITCH SENSOR 9853-3862
BALLUFF OUTPUT SENSOR RXE-1805N-PU-02 NNB
IFM ELECTRONIC 102-132VAC 20-400PSI PRESSURE SENSOR PB4213
IFM EFECTOR100 INDUCTIVE SENSOR IF5580 NIB
EFECTOR100 IFM QUADRONORM PROXIMITY SWITCH IG5907
TEMPOSONICS LINEAR TRANSDUCER DCTM-1911
IFM EFECTOR 20-250V 350MA PROXIMITY SENSOR, IGA2008-ABOA/SL?/IG0341, NNB
SICK FIBER OPTIC LIGHT GUIDE CABLE LSSF 32900 / 7023585
ENCODER PRODUCTS 15VDC ACCU-CODER INCREMENTAL SHAFT ENCODER MODEL 716
FOXBORO 8300 SERIES MAGNETIC FLOWTUBE 8306-SABA-TSJ-G?FNA
KEYENCE LASER DISPLACEMENT SENSOR LK-2503
YAMATAKE-HONEYW?ELL 10.8-26.4VDC PHOTOELECTRIC SENSOR HPJ-E21-008
DYNAPAR ROTARY ENCODER AI2512122B92F
BANNER VALU-BEAM 915 SER SENSOR, SMA915FQD, W ELECTROMECHANIC?AL RELAY OUTPUT NIB
