变频器底板 0370133

变频器底板 0370133

变频器底板 0370133

 1．原理图

2．原理分析

正转控制：按下正转按钮SB1→接触器KM1线圈得电→KM1主触头闭合→电动机正转，同时KM1的自锁触头闭合，KM1的互锁触头断开。

反转控制：先按下停止按钮SB3→接触器KM1线圈失电→KM1的互锁触头闭合。然后按下反转按钮SB2→接触器KM2线圈得电→从而KM2主触头闭合，电动机开始反转，同时KM2的自锁触头闭合，KM2的互锁触头断开。

3．线路特点

对于这种线路，要改变电动机的转向时，必须先按下停止按钮，再按下反转按钮，才能使电动机反转。

IFM EFFECTOR PHOTOELECTRIC SENSOR OG5044
 
YOKOGAWA 0-800 AC AMPERES METER 60RY3434 / 288 1990
 
HEIDENHAIN 294 742 05 640MM LINEAR ENCODER, LS 176
 
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IFM ELECTRONIC PHOTOELECTRIC SENSOR 005000 NNB
 
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EATON CUTLER-HAMMER 20-264VAC, 15-30VDC PHOTOELECTRIC SENSOR 11101AQD03
 
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GP:50 231-VE/GS/FB PRESSURE TRANSDUCER, NIB
 
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-TRU 0-200 DEGREES-F THERMOMETER
 
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PULSOTRONIC 20..250VAC PROXIMITY SWITCH SENSOR 9853-3862
 
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