R911190119 REXROTH

GP4501TADW
2711P-T6C20AC
REM615E-E
MVP-020-3DC
6SL3300-1AE32-5AA0
6SL3040-0PA01-0AA0
6GK5212-2BB00-2AA3
MVME187
EPCOSBR6000-R12
Beijer-EXTERK70

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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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