1756-L61/A
1756-L61/A
1756-L61/A
PLC的输入模块是用来检测接收现场输入设备的信号,并将输入的信号转换为PLC内部接受的低电压信号。
1.输入信号的类型及电压等级的选择 常用的开关量输入模块的信号类型有三种:直流输入、交流输入和交流/直流输入。选择时一般根据现场输入信号及周围环境来决定。
交流输入模块接触可靠,适合于有油雾、粉尘的恶劣环境下使用;直流输入模块的延迟时间较短,还可以直接与接近开关、光电开关等电子输入设备连接。
PLC的开关量输入模块按输入信号的电压大小分类有:直流5V、24V、48V、60V等;交流110V、220V等。选择时应根据现场输入设备与输入模块之间的距离来决定。一般5V、12V、24V用于传输距离较近场合。如:5V的输入模块***远不得超过10m距离,较远的应选用电压等级较高的模块。
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厦门泰尼电气有限公司
【产品质量】原装进口***
【检测标准】按原厂标准
【产品质保】 1 年
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