330180-91-05 BENTLY

BENTLY 330180-51-00
BENTLY 330130-040-00-CN
BENTLY 330130-035-00-CN
BENTLY 330103-00-05-10-02-00
BENTLY 330106-05-30-10-02-00
BENTLY 3500/42-01-00

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Description

按钮的常开和常闭触点的选择也会影响到系统的可靠性。现以一个简单的起动、停止控制线路为例,如图2和图3所示的是两个控制线路和它们的对应梯形图。这两个控制线路的控制功能完全一样,按下起动按钮,输出动作;按下停止按钮,输出断开;但它们的可靠性不一样。

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