IC697ALG230  

IC697ALG230  

IC697ALG230  

（2） PLC控制系统的输出电路设计。依据生产工艺要求，各种指示灯、变频器/数字直流调速器的启动停止应采用晶体管输出，它适应于高频动作，并且响应时间短;如果PLC 系统输出频率为每分钟6 次以下，应**继电器输出，采用这种方法，输出电路的设计简单，抗干扰和带负载能力强。 

如果PLC输出带电磁线圈等感性负载，负载断电时会对PLC的输出造成浪涌电流的冲击，为此，对直流感性负载应在其旁边并接续流二极管，对交流感性负载应并接浪涌吸收电路，可有效保护PLC。 

当PLC扫描频率为10次／min 以下时，既可以采用继电器输出方式，也可以采用PLC输出驱动中间继电器或者固态继电器（SSR），再驱动负载。 

备货，备货，降降降，火火火，火火火……

备货，备货，降降降，火火火，火火火……

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公司名称：厦门泰尼电气有限公司

联系人：小廖（销售代表）

联系：

传真号码：（麻烦备注01008收）

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QQ号码:1490371370
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诚信经营，质量为首，诚信至上，泰尼电气小廖竭诚为您服务！！！

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