HT8CBRB

HT8CBRB

HT8CBRB

HT8CBRB

4、 变频器运行时对PLC干扰应注意的问题

变频器运行时会对周围电气设备（包括P L C ）产生较强的电磁干扰，同时变频器主电路断路器等开关器件动作时也会影响PLC 的正常工作。为防止变频器运行时对PLC干扰，变频器与P L C 相连接时应该注意以下几点：

（1）对PLC 本身应按规定的接线标准和接地条件进行接地，而且应注意避免和变频器使用共同的接地线，且在接地时使二者尽可能分开。

（2）当电源电压波动大，谐波成分多时，为抑制谐波干扰，应在PLC 的电源模块及输入/ 输出模块的电源线上接入噪音滤波器或者隔离变压器。如果干扰仍严重，应考虑在变频器主回路中接入电抗器、变压器和噪音滤波器等措施。

（3）变频器和P L C 安装在同一电控柜时，应尽可能使与变频器有关的电缆和与PLC 有关的电缆分开安装，尤其是连接变频器的强电电缆与连接PLC 的弱电电缆更要分开安装。

4 结束语

变频器和P L C 间连接问题，涉及到数字量信号连接、模拟量信号连接以及避免干扰应注意的问题；在实际应用中，两者间的连接还涉及到用弱电信号控制强电的问题。因此，应引起重视，避免干扰造成变频器、PLC 的误动作；避免连接不当造成PLC 或变频器的损坏。

如果购买单位的在质保日期一年内发现有质量缺陷的，可以进行一个免费维修或更换。

ACOPOS MULTI P0220 8VP0220HW00.000-1

ACOPOS MULTI P0220 8VP0220H000.000-1

ACOPOS MULTI C0160 8B0C0160HW00.000-1

ACOPOS MULTI C0160 8B0C0160HC00.001-1

ACOPOS MULTI K3630 8B0K3630HW00.001-1

ACOPOS MULTI E0500 8BVE0500HW00.000-1

ACOPOS MULTI E0500 8BVE0500HC00.000-1

ACOPOS 1045, 8V1045 00-2, 48070484366

FS67B322222数量2

6SY7000-0AD34    4

6SY7000-0AB62   2

6SE7038-6EK84-1GF0    1-------

SACE PR121/P    SACE EH4 32    1

6DL1135-6TF00-0PH1   1

6ES7 5131-AL02-0AB0   1

513-1AL02-0AB0

1756-IF8H数量1面价17280

6AV6646-1BA18-0NA0 1 个

6AV7863-5MA10-2AA0 1个 

6AV7860-3EH00-0AA0 1个

6SL3224-0BE35-5AA0   1台

施耐德 功率模块 ATV1200C 700/100P，1台，

施耐德 CPU模块 Modicon  M580/BMEP582020

施耐德 接口模块 M340/BMXP341000 

6SL3224-0BE33-7UA0   1个

LD810HSE  EX     1

ABB

NDBU-95C DDCS      1

APBU-44C  APBU-44CE      1

6ES7223-1BL32-1XB0    1---------

223-1BL32-0XB0

6SL3120-2TE21-8AA3   1

6AV3688-3CD13-0AX0   4

6ES7414-3XM07-0AB0   1---------

6SE7038-6GL84-1HJ1   1-------

6SY7000-0AC35   2

6ES5980-0MA11   2

6SE7032-7EB87-2DA0  1------

6SY7000-0AA52   1

6FX8002-2CB54-1AF0   1

6SY7000-1AB67   1

6SY7000-1AB66   

6SY7000-0AC48   4

6AV3617-1JC00-0AX1   1

223-1BL22-0XA0    1

6SE7028-0UF60   1--------

3RW4055-6BB35   1------

526-1BH00-0AB0   1

6ED1055-1FB00-0BA2   10

6SL3210-1PH31-2UL0   1

NBRA653,ABB # 58914975    1

NBRA-653

5STP1865M0004  YST45-28    8

SNAT 7261 PCP   1

OT630E03P  2

SNAT7261INT   1

S502UC-K15   2

MG200QIUS  CODE 10002931   4

SKN60F15   4

SNAT633PAC   3

3BSC610064R1   2

SACE 15 RE22    1

EATON CUTLER-HAMMER LIMIT SWITCH HEAD MODEL E50DS3

EATON CUTLER-HAMMER LIMIT SWITCH COMPONENT E50ALR1P5

EATON CUTLER-HAMMER K3-62K00 & K3-62K 110-120V CIRCUIT BREAKER

EATON CUTLER-HAMMER INDUCTIVE PROXIMITY SENSOR E57SAL12A2E SER. B1

EATON CUTLER-HAMMER INDUCTIVE PROXIMITY SENSOR E57LAL18A2SA SER E1

Eaton Cutler-Hammer Hot Tub Panel 50 AMP BR50A BR50SPA GFCI

Eaton Cutler-Hammer Heavy Duty Safety Switch 600V 30A 60Hz 250V DH361UGK

Eaton Cutler-Hammer Heavy Duty Safety Switch 60 Amp 600 VDC DH162URKN

Eaton Cutler-Hammer Heavy Duty Safety Switch 30amp 600Volts Max 2 Pole DH261UGK

Eaton Cutler-Hammer Heavy Duty Safety Switch 30Amp 600Volts A-c 3 Pole DH361UGK

Eaton Cutler-Hammer H2010B-3 Overload Heater Pack Freedom 6.75 -11.0 Amp

Eaton Cutler-Hammer H1056 Heater Coil

Eaton Cutler-Hammer H1052 Heater Coil

Eaton Cutler-Hammer Ground Fault Breaker 20A 1 Pole 120 V # GFCB120 2 ea.

Eaton Cutler-Hammer Green Standard Illuminated Indicating Light 30.5mm #HT8HBGT3

EATON CUTLER-HAMMER GREEN PILOT LIGHT 125 EZC-G 125EZCG 125V 449D187G24 NIB

EATON CUTLER-HAMMER GHC2030 MOLDED CASE FEED-THRU BREAKER 2 POLE 30 AMP GHC 2030

Eaton Cutler-Hammer GHB3040 Breaker 3 Pole 40 Amp Bolt-on 277/480 Volt

EATON CUTLER-HAMMER GHB2015 2P 15A 277/480 VAC BOLT ON BREAKER OEM 113

Eaton Cutler-Hammer General Duty Safety Switch Part # DG222NRB NOB

Eaton Cutler-Hammer General Duty Safety Switch Part # DG222NRB NOB

EATON CUTLER-HAMMER GENERAL DUTY SAFETY SWITCH DG222NRB 60A 240 VAC/V   IN BOX

Eaton Cutler-Hammer GDB 14k Industrial 3-Pole 50A Circuit Breaker AC/DC

Eaton Cutler-Hammer FS340050A 3 Pole 50 Amp Circuit Breaker

Eaton Cutler-Hammer FDB3015 Series C 15 amp Circuit Breaker

Eaton Cutler-Hammer Enclosure Only For ECN0801AAA Starter Style 84-28691-23  

Eaton Cutler-Hammer EM22JS2Y2 Joystick Operator

Eaton Cutler-Hammer ECN0501AAA Motor Starter (Enclosure Only)

Eaton Cutler-Hammer E65-SMPP100-GD Perfect Prox Sensor 100mm *BRAND  *

Eaton Cutler-Hammer E59-F18A109C02-A2 18mm iProx Sensor   8301D

EATON Cutler-Hammer E57SAL18T111ED Series G1 Proximity Switch

Eaton Cutler-Hammer E57SAL12A2 12mm E57 Premium Inductive Proximity Sensor

EATON CUTLER-HAMMER E57MCL18T110 TUBULAR INDUCTIVE PROXIMITY SENSOR SER. D1

EATON CUTLER-HAMMER E57MCL18T110 SERIES A1 INDUCTIVE PROXIMITY SENSOR

EATON CUTLER-HAMMER E57MBL18A2 90-250 VAC 45-65 HERTZ PROXIMITY SENSOR, NIB

EATON Cutler-Hammer E57MAL30A2B1 Series E 1Proximity Switch

Eaton Cutler-Hammer E57LBL18A2EA Inductive Proximity Sensor 20-250VAC *NIB*