1783-RMS10T以太网模块
1783-RMS10T以太网模块
1783-RMS10T以太网模块
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PLC)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PLC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PLC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PLC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。
触摸屏6AV6545-0DA10-0AX0 数量:1
LST400Y0S15N1P3A1H1SC2B2TCCRGS1M5 1
ABB 3HAC17332-1 1PCS
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YASKAWA 2171IF JACP-317217, CP-317, YASKAWA CODE : 87317-21720-S0200 1
84E901259G5 30
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A02B-0323-B802
A06B-6250-H060
A06B-6290-H155
A06B-6270-H075#H600 各一
6FX2003-0LU00 15个
3EF4026 1
FC-TSAI-1620m 6
BPOW-01C 5
440L-T4F2070-Q 23年面价:5458 1个
6GT2002-0AB00 Siemens 11台
131-1BL12-0XB0
6ES5318-8MA12 各一
6GK1900-0UB00-0AA0
A5E02630233-002 C2-002
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3AE1586-7AF50-0FJ9-Z
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6SL3710-1GE41-0AA3-Z
6RA7082-6FV22-0-Z-G64-------------
1756-PBR2 面价44550 1
20-750-ENETR 4543 1个
TBUX297378 10
745836 1
1SBL397201R1300 1
1SCA022627R3170 1
1VCF339752S5918 2
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FILTER PUMP IND 8C-5C 8C5C
FANUC A06B-0642-B012 A06B0642B012
FANUC A06B-0583-B041 A06B0583B041
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FANUC A06B-0128-B577 A06B0128B577
FANUC A06B-0127-B675 A06B0127B675
ENDRESS & HAUSER 93WA1-BA1A20RCBAAA 93WA1BA1A20RCBA1
ENCODER PRODUCTS 725N6000QOC1FNEY 725N6000QOC1FNEY
DIGITAL COMPUTER 5016017-01-D1-P3 501601701D1P3
CUTLER HAMMER SVX025A1-4A1B1 SVX025A14A1B1
CUTLER HAMMER SPD200480Y3K SPD200480Y3K
CUTLER HAMMER PUM-1 PUM1
CUTLER HAMMER HLD3600 HLD3600
CUTLER HAMMER DH425FGK DH425FGK
CUTLER HAMMER CB4033T120K480 CB4033T120K480
CUTLER HAMMER A900M2DAC A900M2DAC
CONTROL TECHNIQUES V7500ICD V7500ICD
CONTROL TECHNIQUES SPMD1604M SPMD1604M
COMPUMOTOR DRM21008B115 DRM21008B115
COGNEX IS5100-00 IS510000
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COGNEX 800-5870-1 80058701
CARRIER HK50AA021 HK50AA021
BONITRON M3452-H600K6 M3452H600K6
BAYSIDE RA142-015-LB RA142015LB
BANNER ENGINEERING P4COR P4COR
BALDOR ZD18H-460-EO ZD18H460EO
BAILEY CONTROLS 6637446A 6637446A
BAILEY CONTROLS 6637033A4 6637033A4
BAILEY CONTROLS 6637033A2 6637033A2
AVTRON 630267 630267
ASEA BROWN BOVERI YT221001-LS YT221001LS
ASEA BROWN BOVERI YB560103-AC/8 YB560103AC8
ASEA BROWN BOVERI SR4313150R23C2EC1AB SR4313150R23C2EC
ASEA BROWN BOVERI DCF504-0050 DCF5040050
ASEA BROWN BOVERI ACS800-U1-0120-5+E202+L500+L502+P901 ACS800U101205E20
ASEA BROWN BOVERI 52614759 52614759
ARO 93970317 93970317
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ALLEN BRADLEY 6180-ADIDCFBCCZZ 6180ADIDCFBCCZZ
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ALLEN BRADLEY 1747-OCEDEBA 1747OCEDEBA
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ALLEN BRADLEY 1391-DES45-DI-AQB-A 1391DES45DIAQBA
ALLEN BRADLEY 1391-DES22-DI-AQB 1391DES22DIAQB
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ALLEN BRADLEY 1336S-B020-AA-EN4-HA2-L6 1336SB020AAEN4H2
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ALLEN BRADLEY 1336F-BRF200-AN-EN-L5 1336FBRF200ANENL
ALLEN BRADLEY 1336F-BRF200-AE-EN-L5 1336FBRF200AEENL
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ALLEN BRADLEY 1326AB-B420H-S2K4L 1326ABB420HS2K4L
ALLEN BRADLEY 1326AB-A530E-21 1326ABA530E21
ADEPT TECH 10332-00716 1033200716
AC TECHNOLOGY M34400B M34400B