2017/5/16 11:49:28 来源: 福州卓凯电子科技有限公司
6DI50Z-120现货
BBDP1-01现货
PLC的供电电源为50Hz、220V±10%交流市电。
S7-200系列可编程控制器有直流24V输出接线端,该接线端可为输入传感器(如光电开关或接近开关)提供直流24V电源。
如果电源发生故障,中断时间少于10ms,可编程控制器工作不受影响。若电源中断超过10ms或电源下降超过允许值,则可编程控制器停止工作,所有的输出点均同时断开。当电源恢复时,若RUN输入接通,则操作自动进行。
对于电源线来的干扰,可编程控制器本身具有足够的抵制能力。如果电源干扰特别严重,可以安装一个变比为1:1的隔离变压器,以减少设备与地之间的干扰。
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