Bently3500/92 136180-01

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Bently3500/92 136180-01

【联系人：苏烈格】
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　(1)来自空间的辐射干扰

　　空间的辐射电磁场（EMI）主要是由电力网络、电气设备的暂态过程、雷电、无线电广播、电视、雷达、高频感应加热设备等产生的，通常称为辐射干扰，其分布极为复杂。若PLC系统置于所射频场内，就回收到辐射干扰，其影响主要通过两条路径；一是直接对PLC内部的辐射，由电路感应产生干扰；而是对PLC通信内网络的辐射，由通信线路的感应引入干扰。辐射干扰与现场设备布置及设备所产生的电磁场大小，特别是频率有关，一般通过设置屏蔽电缆和PLC局部屏蔽及高压泄放元件进行保护。

　　(2)来自系统外引线的干扰

　　主要通过电源和信号线引入，通常称为传导干扰。这种干扰在我国工业现场较严重。

　　(3)来自电源的干扰

　　实践证明，因电源引入的干扰造成PLC控制系统故障的情况很多，笔者在某工程调试中遇到过，后更换隔离性能更高的PLC电源，问题才得到解决。

　　PLC系统的正常供电电源均由电网供电。由于电网覆盖范围广，将受到所有空间电磁干扰而在线路上感应电压和电路。尤其是电网内部的变化，入开关操作浪涌、大型电力设备起停、交直流转动装置引起的谐波、电网短路暂态冲击等，都通过输电线路到电源边。PLC电源通常采用隔离电源，但其机构及制造工艺因素使其隔离性并不理想。实际上，由于分布参数特别是分布电容的存在，隔离是不可能的。
ALLEN BRADLEY 1326AB-B420E-21-X92

Allen Bradley 1326AB-B720E-S2L

Allen Bradley 1326AB-B720E-M2L

Allen Bradley 1326ab-b720e-s2l

ALLEN BRADLEY ,1326AB-B520E-S2L

ALLEN BRADLEY 1326AB-B720E-21-L

Allen-Bradley 1326AB-B420H-21-K4

ALLEN BRADLEY 1326AB-B520F-21

Allen-Bradley: SERV MTR,153-IN-LB,3K-RPM,STD INCH - 1326AB-B3E-11

ALLEN BRADLEY 1326AB-C2C-11

Allen Bradley 1326 AC 1326AB-B740C-21-L

Allen Bradley 1326 Motor 1326AB-B3E-A5 p/n

ALLEN BRADLEY 1326AB-B740C-21-L

ALLEN BRADLEY 1326AB-B420E-21

Allen Bradley - 1326AB-B730E-21-A

ALLEN BRADLEY 1326AB-B410G-21-K4

ALLEN BRADLEY 1326AB-A2E-11

ALLEN BRADLEY 1326AB-B3B-11










ALLEN-BRADLEY 1326AB-B520F-21

ALLEN BRADLEY 1326AB-C4C-21

ALLEN BRADLEY 1326AB-B3E-21

1326ABA740B21 - MOTEUR ALLEN BRADLEY

ALLEN BRADLEY 1326AB-A2E-11

ALLEN BRADLEY 1326AB-B515E-21-K5

ALLEN BRADLEY 1326AB-B3E-11-A5

ALLEN BRADLEY 1326AB-B520E-21

ALLEN BRADLEY 1326AB-B740C-21-ML

ALLEN BRADLEY 1326AB-B520F-S2L

ALLEN BRADLEY 1326AB-B2E-11

ALLEN BRADLEY 1326AB-B720E-21-MK7L

ALLEN BRADLEY 1326AB-A530E-21

Allen bradley 1326AB-B520F-S2K5L

ALLEN BRADLEY 1326AB-B520E-21

Allen bradley 1326AB-B520F-S2K5L

Allen Bradley 1326AB-C4C-11-A7

ALLEN BRADLEY 1326AB-B730E-21

ALLEN BRADLEY 1326AB-B420E-21

ALLEN BRADLEY 1326AB-B530E-21-L

ALLEN BRADLEY 1326AB-B520E-21-K5

ALLEN BRADLEY 1326AB-C3E21

ALLEN BRADLEY 1326AB-B410G-21

ALLEN BRADLEY 1326AB-B720E-21-Z15

ALLEN BRADLEY 1326AB-B3E-11-A5

Allen-Bradley: 120VAC 3000RPM - 1326AB-B2E-11

ALLEN BRADLEY 1326AB-A2E-11-A4

ALLEN BRADLEY 1326AB-A3E-11

ALLEN BRADLEY 1326AB-B720F-21K7

Allen Bradley 1326AB-B720E-21

ALLEN BRADLEY 1326AB-A1G-11

Allen Bradley 1326AB-B2E-11 p/n

Allen Bradley 1326ab-b520f-s2k5l

ALLEN BRADLEY 1326AB-B515E-M2LS

ALLEN BRADLEY 1326AB-B2E-11

ALLEN BRADLEY 1326AB-A3E-11

NEW ALLEN BRADLEY 1326AB-B2E-11

ALLEN BRADLEY 1326AB-C2E-11

Allen Bradley 1326AB-C3E-11-A7

ALLEN BRADLEY 1326AB-B420E-21

ALLEN BRADLEY 1326AB-B730E-21-L

Allen Bradley 1326AB-C4C-11-A7

ALLEN BRADLEY 1326AB-C2E-11-A7

ALLEN BRADLEY 1326AB-B1C-11-A5

Allen Bradley 1326AB-B410G-21 /C

Allen Bradley 1326AB-B520F-S2L









ALLEN BRADLEY 1326AB-B515E-M2LS

ALLEN BRADLEY 1326AB-B2E-11

ALLEN BRADLEY 1326AB-A3E-11

ALLEN BRADLEY 1326AB-C2E-11AC

Allen Bradley 1326AB-C3E-11-A7

ALLEN BRADLEY 1326AB-B420E-21AC

ALLEN BRADLEY 1326AB-B730E-21-L

Allen Bradley 1326AB-C4C-11-A7

ALLEN BRADLEY 1326AB-C2E-11-A7

ALLEN BRADLEY 1326AB-B1C-11-A5

Allen Bradley 1326AB-B410G-21 /C

Allen Bradley 1326AB-B520F-S2L

ALLEN BRADLEY 1326AB-B2E-11-K5

ALLEN BRADLEY 1326AB-B430E-M2L

ALLEN BRADLEY 1326AB-B515E-21-K5

ALLEN BRADLEY 1326AB-B410J-21-K4

ALLEN BRADLEY 1326AB-B420E-M2L

ALLEN BRADLEY 1326AB-B430G-21-K4

Allen-Bradley 1326AB-A2E-11-A4

ALLEN BRADLEY 1326AB-B530F-21

ALLEN BRADLEY 1326AB-B520E-M2L

ALLEN-BRADLEY 1326AB-B520E-21

Allen Bradley 1326 AC 1326AB-B520E-21 155324

1326AB-B520F-M2L - Allen Bradley

ALLEN BRADLEY 1326AB-C2C-11

ALLEN BRADLEY 1326AB-C2E-11

ALLEN BRADLEY 1326AB-B420H-S2L

ALLEN BRADLEY 1326AB-B730E-21-L

ALLEN BRADLEY 1326AB-B530E-21-ML

ALLEN BRADLEY 1326AB-B420E-21

ALLEN BRADLEY 1326AB-B420E-21-ML

ALLEN BRADLEY (1326AB-B530E-S2LS)

Allen Bradley 1326AB-B3B-11

Allen Bradley 1326AB-A2E-11-A4

ALLEN BRADLEY 1326AB-B420E-21-K4L

Allen bradley 1326AB-B430G-M2L

ALLEN BRADLEY 1326AB-B420H-21-K4

allen bradley 1326ab-c3e-11

ALLEN BRADLEY 1326AB-B530E-21

ALLEN BRADLEY 1326AB-C3E-11

Allen bradley 1326AB-B430G-M2L

SERVO MOTOR 1326AB-B5330E-21

ALLEN BRADLEY 1326AB-B430E-21-K4









Allen Bradley 1326ab-c3e-11

Allen Bradley 1326ab-b430g-m2l

ALLEN BRADLEY 1326AB-B515E-21-X51

ALLEN BRADLEY 1326AB-B430G-S2K4L

ALLEN BRADLEY 1326AB-B720E-21-715

ALLEN BRADLEY 1326AB-B720E-21-ML

ALLEN BRADLEY 1326AB-A2E-21-A4

ALLEN BRADLEY 1326AB-B430E-S2L

ALLEN BRADLEY 1326AB-MOD-PGB20

Allen Bradley 1326AB-C3E-11-A7 /A

ALLEN BRADLEY 1326AB-B3E-11AC

Allen Bradley 1326AB-A3E-11 122245

Allen-Bradley/Bayside 1326AB-B720E-21 6.79KW