IC697CSE925
IC697CSE925
厦门光沃自动化设备有限公司
联系人:小杨
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电话:
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IC697CSE925
来自信号线引入的干扰
与PLC控制系统连接的各类信号传输线,除了传输有效的各类信号之外,会有外部干扰信号侵入。此干扰主要有两种途径:一是通过变送器或共用信号仪表的供电电源串入的电网干扰,这往往被忽略;二是信号线受空间电磁辐射感应的干扰,即信号线上的外部感应干扰,这是很严重的。由信号引入干扰会引起I/O信号工作异常和测量精度大大降低,严重时将引起元器件损伤。对于隔离性能差的系统,还将导致信号间互相干扰CONTROL ENGINEERING China版权所有,引起共地系统总线回流,造成逻辑数据变化、误动和死机。PLC控制系统因信号引入干扰造成I/O模件损坏数相当严重,由此引起系统故障的情况也很多。
IC697CSE925
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ABB 3HAC1620-1 DSQC 365 Power supply
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ABB 3HAC3462-1 DSQC 374 Power supply
ABB 3HAC10597-1 DSQC 386 Devicenet gateway
ABB 3HAC3616-1 DSQC 500 Main computer
ABB 3HAC3619-1 DSQC 503 Axis computer
ABB 3HAC4297-1 DSQC 506 Power supply
ABB 3HAC5393-2 DSQC 508 Battery unit
ABB 3HAC5687-1 DSQC 509 Panel unit
ABB 3HAC7519-2 DSQC 518A Flash disk 64Mb
ABB 3HAC7519-3 DSQC 518B Flash disk 128Mb
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ABB 3HAC14279-1 DSQC 540 Main computer
ABB 3HAC16917-3 DSQC 544A Flash disk 64Mb
ABB 3HAC16917-4 DSQC 544B Flash disk 128Mb
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ABB 3HAB8101-18 DSQC 546A Drive unit
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ABB 3HAC022104-002 DSQC 564B Flash disk 128Mb
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ABB 3HAC025918-001 DSQC 653 Digital relay
ABB 3HAC025465-004 DSQC 656 Flash disk 256Mb
ABB YB560103-BD DSQC223 I/O Card
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ABB 3HAA 3562-AGA/2 DSQC249A PowerUnit
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ABB 3HAB 2211-1/1 DSQC256A
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ABB YB161100-DP DSQS 174 Teach pendant S2
ABB YB161100-DR DSQS 174 Teach pendant S2
ABB 48990001-FE DSSR 115 Power supply
ABB 48990001-FK DSSR 116 Power supply
ABB 3HAC023195-1 Flexpendant Teach penda