Description
增加了一个复合按钮SB 3来实现点动控制。需要点动运行时,按下SB 3点动按钮,其常闭触点先断开自锁电路,常开触发后闭合接通起动控制电路,KM接触器线圈得电,主触点闭合,接通三相电源,电动机起动运转。当松开点动按钮SB 3时,KM线圈失电,KM主触点断开,电动机停止运转。
Juniper PE-2MCDS3 2-port Multichannel DS3 PIC M7i M10i
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Juniper RE-1600-2048 Routing Engine T1600, T640, T320
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