1C31197G01 GE

SR489-P5-LO-A20
A06B-0202-B000
A06B-6130-H003
A06B-6114-H207
A06B-6114-H104
A06B-6114-H303
A06B-6114-H103
A06B-6111-H022#H550
A06B-6110-H026
A06B-6117-H304
A06B-6134-H302

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描述

PLC控制系统的输入电路设计。PLC供电电源一般为AC85—240V,适应电源范围较宽,但为了抗干扰,应加装电源净化元件(如电源滤波器、1:1隔离变压器等);隔离变压器也可以采用双隔离技术,即变压器的初、次级线圈屏蔽层与初级电气中性点接大地,次级线圈屏蔽层接PLC输入电路的地,以减小高低频脉冲干扰。

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