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A06B-0893-B390#3000
A06B-0893-B390#3000
A06B-0893-B390#3000
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。
FS300R17KE3/AGDR-76C
ACS880-01-038A-3+B056+J425+K454+L503 2
ACS880-01-025A-3+B056+J425+K454+L503 2
ACS580-01-088A-4+K454+J400 1
68869625 9
3GBA312420-BDM 1
3GBA222210-ADC+331 1
3GBA071320-BSD 1
952-0AC50-0AD0数量1
6GK5206-2GS00-2AC2 数量1个
ABB CS2000-9944 1
440R-S13R2 1面价 799
RH35M-2DK.5L.3R 1
BMXDRA1605 7个
6GK5202-2BB00-2BA3 1
6ES7960-1AA06-0XA0 2
6SL3120-2TE21-0AA4 3
502-00935 1
6AV2144-8GC10-0AA0 2
214-1BG40-0XB0数量50
LX660-4024-T023/L1R503 GV 1019051-49/16 1
1769-L33ERMSK 1 面价53003
1734-IB8 7 面价964
1734-OB8S 1 面价4669
1734-AENTR 1 面价5068
1734-EP24DC 1 面价1580
1769-PB2 1 面价3214
25C-D4P0N114 2 面价6131
2711P-T12W21D8S 1 面价31377
1497-G-M4-0-N 1 面价2408
1756-L71 7 面价65363
1756-PA72 5 面价11588
YASKAWA ELECTRIC USAMED-30MA2T USAMED30MA2T
YASKAWA ELECTRIC E7BVB021 E7BVB021
YASKAWA ELECTRIC CIMR-P5U20450F CIMRP5U20450F
YASKAWA ELECTRIC CIMR-H3-0G2E-10 CIMRH30G2E10
YASKAWA ELECTRIC CACR-IR10101FC CACRIR10101FC
WILLIAMSON PRO-120-20-F-23 PRO12020F23
WESTINGHOUSE MD3B1NPFRG MD3B1NPFRG
WESTINGHOUSE 292B930A10 292B930A10
VIBRO METER CMC16 CMC16
TRICONEX 3006 3006
TOTAL CONTROL PRODUCTS QPI-CTA-E0000 QPICTAE0000
TEXAS INSTRUMENTS PLC 575-2104 5752104
TEXAS INSTRUMENTS PLC 565-2820 5652820
TELEMECANIQUE MPC-KT12NAX00N MPCKT12NAX00N
TB WOODS UVC-4050-0H UVC40500H
SYMAX 8030-ROM-121 8030ROM121
SSD DRIVES 955-8R0060 9558R0060
SQUARE D MEL36800LSG MEL36800LSG
SQUARE D ATV-58EU54N4 ATV58EU54N4
SQUARE D 1.5S1F 15S1F
SPECTRA TECH 912A036A 912A036A
SIEMENS HNFC366J HNFC366J
SIEMENS 6SE7-041-6ES87-0FA0 6SE70416ES870FA0
SIEMENS 6SE7-021-0EA61-Z-L20 6SE70210EA61ZL20
SIEMENS 6SC9-111-2GB15 6SC91112GB15
SIEMENS 6FX1-113-0AA02 6FX11130AA02
SIEMENS 6ES7-414-2XG01-0AB0 6ES74142XG010AB0
SIEMENS 6ES5-581-0EE15 6ES55810EE15
SIEMENS 6ES5-247-1AA11 6ES52471AA11
SIEMENS 6DS1-143-8AA 6DS11438AA
SIEMENS 6DS1-105-8AA 6DS11058AA
SIEMENS 6DD1-606-1AC0 6DD16061AC0
SIEMENS 3WN6231-0FC74-1FA1 3WN62310FC741FA1
SIEMENS 3TF6944-0CM7 3TF69440CM7
SIEMENS 1LA0364-2SP22 1LA03642SP22
SEIKO INSTRUMENTS & ELECS LTD OFL-760A-26 OFL760A26
SAFTRONICS SAF402.0140 SAF4020140
REXROTH PE110 PE110
REXROTH 0-608-830-141 0608830141
RELIANCE ELECTRIC W/R-67100-B WR67100B
RELIANCE ELECTRIC VZ3000-DASR-1 VZ3000DASR1
RELIANCE ELECTRIC GV3000AC106 GV3000AC106
RELIANCE ELECTRIC GV3000-AC-043 GV3000AC043
RELIANCE ELECTRIC B/M-60031-1 BM600311
RELIANCE ELECTRIC 803456-3T 8034563T
RELIANCE ELECTRIC 61C-613 61C613
RELIANCE ELECTRIC 61C-160 61C160
RELIANCE ELECTRIC 57C-442 57C442
RELIANCE ELECTRIC 50P4161 50P4161
RELIANCE ELECTRIC 45C-15D 45C15D
RELIANCE ELECTRIC 0-60031-4B 0600314B
RELIANCE ELECTRIC 0-55325-37 05532537
RELIANCE ELECTRIC 0-48673-1 0486731
PROSOFT 3100-MCM 3100MCM
PHOENIX CONTACT IBS-IP-500-PS-2-BS IBSIP500PS2BS
PARKER 46987601L 46987601L
ORMEC MAC-B200F/K1A MACB200FK1A
OMRON V530-R160EP V530R160EP
NICOLET PROTEJE-460 PROTEJE460
NEMATRON CORP IWS-2513 IWS2513
NACHI ROP501 ROP501
NACHI ROP500 ROP500
MOORE PRODUCTS 39ACM28ADN 39ACM28ADN
MOORE PRODUCTS 352PEA21VNNNNAW 352PEA21VNNNNAW
MODICON PC-CBCA-000 PCCBCA000
MODICON AS-P890-300 ASP890300
MODICON AS-M507-016 ASM507016
MODICON AS-B807-132 ASB807132
MODICON AS-506P-F16 AS506PF16
MODICON AS-506P-005 AS506P005
MODICON AM-S980-800 AMS980800
MODICON AM-M909-023 AMM909023
MODICON AM-M909-002 AMM909002
MODICON 557VIC10200 557VIC10200
MODICON 140-CRP-931-00 140CRP93100
MODICON 140-CPU-534-14 140CPU53414
MODICON 140-CPU-434-12A 140CPU43412A
MODICON 140-CPU-434-12 140CPU43412
MODICON 140-CPU-213-04C 140CPU21304C
MIYACHI MM-730A MM730A
MITSUBISHI Q173CPU Q173CPU
MITSUBISHI HC-H703BS-A42 HCH703BSA42
MICROMASS LCT LCT
MEASUREX 51402089-100 51402089100
MEASUREX 51198947-100 51198947100
MARCONI ASX-1000-10AC ASX100010AC
MAGNETEK R762 R762