描述
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、地电位差及空间电磁辐射在信号线上感应的共态(同方向)电压叠加所形成。
PACIFIC SCIENTIFIC NS47671 NSFP NS47671
Pacific Scientific Servomotor R32SSNA-R2-NS-NV-05 SVG90
Pacific Scientific Carbon Motor Brush YP00372
PACIFIC SCIENTIFIC POWERTEC DIGIMAX
PACIFIC SCIENTIFIC PMB11B-10Y14-04 USPP PMB11B10Y1404
PACIFIC SCIENTIFIC R46GENA-TS-NS-VS-00 NSFP R46GENATSNS
Pacific Scientific YP00583 – DC motor brush Replaces Y
PACIFIC SCIENTIFIC NS47671 NSFP NS47671
Pacific Scientific Servomotor R32SSNA-R2-NS-NV-05 SVG90
Pacific Scientific Carbon Motor Brush YP00372
PACIFIC SCIENTIFIC POWERTEC DIGIMAX
PACIFIC SCIENTIFIC PMB11B-10Y14-04 USPP PMB11B10Y1404
PACIFIC SCIENTIFIC R46GENA-TS-NS-VS-00 NSFP R46GENATSNS
Pacific Scientific YP00583 – DC motor brush Replaces Y