产品简介
1756-ENEB
1756-ENEB
产品价格:¥5360
上架日期:2018-08-14 10:28:03
产地:本地
发货地:本地至全国
供应数量:不限
最少起订:1台
浏览量:163
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    1756-ENEB 

    (3) PLC控制系统的抗干扰设计。随着工业自动化技术的日新月异的发展,晶闸管可控整流和变频调速装置使用日益广泛,这带来了交流电网的污染,也给控制系统带来了许多干扰问题,防干扰是PLC控制系统设计时必须考虑的问题。一般采用以下几种方式: 


    隔离:由于电网中的高频干扰主要是原副边绕组之间的分布电容耦合而成,所以建议采用1:1超隔离变压器,并将中性点经电容接地。 

    屏蔽:一般采用金属外壳屏蔽,将PLC系统内置于金属柜之内。金属柜外壳可靠接地,能起到良好的静电、磁场屏蔽作用,防止空间辐射干扰。 

    布线:强电动力线路、弱电信号线分开走线,并且要有一定的间隔;模拟信号传输线采用双绞线屏蔽电缆。 

    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:小黄(销售代表)
    联系电话:0592-6809319
    传真号码:0592-6890859(麻烦备注01006收)
    手机:189-5019-1386微信同号
    QQ号码:2917675397
    地址:厦门市海沧区海沧农场海农北里17号
    诚信经营,质量为首,诚信至上,泰尼电气小黄竭诚为您服务!!!
    ————————————————————————————————
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