PS416-OUT-400
PS416-OUT-400
PS416-OUT-400
(3)I/O端的接线
输入接线
输入接线一般不要太长。但如果环境干扰较小,电压降不大时,输入接线可适当长些。
输入/输出线不能用同一根电缆,输入/输出线要分开。
尽可能采用常开触点形式连接到输入端,使编制的梯形图与继电器原理图一致,便于阅读。
输出连接
输出端接线分为独立输出和公共输出。在不同组中,可采用不同类型和电压等级的输出电压。但在同一组中的输出只能用同一类型、同一电压等级的电源。
由于PLC的输出元件被封装在印制电路板上,并且连接至端子板,若将连接输出元件的负载短路,将烧毁印制电路板。
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