CX1500-M310 BECKHOFF PLC系统

BECKHOFF CX1100-0002
BECKHOFF CX1500-M310
BEIJER E1043
BEIJER E1043
BEIJER E1043
BENDER 107TL47
BENDER IRDH375
BENDER RCM470DD
BENTLEY 330780-50-00
BENTLEY 1900/65A
BENTLY 1900/65A-01-01-01-00-00
BENTLY 1900/65A-01-00-01-00-00
BENTLY 167699-02
BENTLY 330180-X0-05
BENTLY 3500/15
BENTLY 149992-01

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Description

对于变送器供电的电源和PLC系统有直接电气连接的仪表的供电电源,并没受到足够的重视,虽然采取了一定的隔离措施,但普遍还不够,主要是使用的隔离变压器分布参数大,抑制干扰能力差,经电源耦合而串入共模干扰、差模干扰。所以,对于变送器和共用信号仪表供电应选择分布电容小、抑制带大(如采用多次隔离和屏蔽及漏感技术)的配电器,以减少PLC系统的干扰。

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