P0500SE FOXBORO 主电路的连接

P0500SR – FOXBORO
P0500UM – FOXBORO
P0500UX – FOXBORO
P0500UY – FOXBORO
P0500WX – FOXBORO
P0500XL – FOXBORO
P0600TA – FOXBORO
P0700AC – FOXBORO
P0700AH – FOXBORO
P0700FV – FOXBORO
P0700FW – FOXBORO
P0700HE – FOXBORO
P0700TT – FOXBORO
P0700WB – FOXBORO

Description

可编程控制器的硬件连接实现电动机的点动及连续运行所需的器件有:起点按钮SB1,停止按钮SB2,交流接触器KM,热继电器JR及刀开关QS等。主电路的连接如图所示。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。

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