R911273435 REXROTH

3HAC024563-003 ABB
3HAC024596-007 ABB
3HAC024628-001 ABB
3HAC024692-013 ABB
3HAC024719-003 ABB
3HAC024762-001 ABB []ABB
3HAC024793-001 ABB
3HAC024826-019 ABB

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描述

PLC的供电电源,除了引进设备时同时引进PLC应根据产品说明书要求设计和选用外,一般PLC的供电电源应设计选用220VAC电源,与国内电网电压一致。重要的应用场合,应采用不间断电源或稳压电源供电。如果PLC本身带有可使用电源时,应核对提供的电流是否满足应用要求,否则应设计外接供电电源。为防止外部高压电源因误操作而引入PLC,对输入和输出信号的隔离是必要的,有时也可采用简单的二极管或熔丝管隔离。

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