XI16E1-F4.0 ABB

ABB 3BSE004160R1 PFTL101A
ABB PFEA111-65
ABB PFEA111/112
FOXBORO P0922AG
FOXBORO FCP270
FOXBORO FBM216 P0917TN
FOXBORO FCM10E

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Description

影响PLC控制系统的干扰源,大都产生在电流或电压剧烈变化的部位,其原因是电流改变产生磁场,对设备产生电磁辐射;磁场改变产生电流,电磁高速产生电磁波。通常电磁干扰按干扰模式不同,分为共模干扰和差模干扰。共模干扰是信号对地的电位差,主要由电网串入

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