IC694BEM331模块
IC694BEM331模块
IC694BEM331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。
750-662/000-003 1
FR-E840-0120-4-60 5.5KW 4
FR-E840-0060-4-60 2.2KW 3
FR-E840-0095-4-60 3.7KW 2
MR-J2S-10B 1个
TAKEX UM-Z3DS-38STF 1
HD142E6-88S 1
FX-3U-32MT/DSS 1
Q06UDHCPU 1
Q64P 2
QD81DL96 1
QJ71E71-100 1
QD75MH1 1
Q68ADI 7
QY81P 2
GOT1000 GT1672-VNBD 1
FCP280 2
FBM230 1
RH928AZ 1
RH926GH 1
FBM214b 6
RH100CC 6
RH924JH 6
FBM215 4
RH926SP 4
RH100CC 4
RH916MZ 1
RH100EB 2
UM-FX-DI32-24 1
RH100CN 1
FBM242 1
RH916YY 1
RH100CN 1
FCP270 2
FBM 214b 5
FBM 217 2
FBM 242 2
FBM 218 4
FCM 2F2 1
FBM 216b 4
FEM100 1
FBM242 1
P0916PW 1
RH916FK 1
NFX8327B011.24/DC.18460 3
FCP270 2
FBM 214b 9
FBM 217 3
FBM 242 2
FBM 218 4
FCM 2F2 1
FBM 216b 2
YASKAWA ELECTRIC ETJ002860 ETJ002860
YAMATAKE 82114927-002 82114927002
WESTRONICS INC 3000-111-010-031-012-0-0 300011101003101
WESTINGHOUSE NCMZ-1799 NCMZ1799
WESTINGHOUSE 2838A31G01 2838A31G01
WESTINGHOUSE 149D930G01 149D930G01
TYCOR PTY-H-277/480-PDTS PTYH277480PDTS
TOPEX 2200-HYC 2200HYC
TEXOR AB 56-3206-25 56320625
TELEMECANIQUE TSX-P87-455E TSXP87455E
TAYLOR ELECTRONICS 6214BZ10110 6214BZ10110
TAYLOR ELECTRONICS 6205BZ10000 6205BZ10000
TAYLOR ELECTRONICS 6204BZ10100D 6204BZ10100D
SYMAX 8020-SCP-544 8020SCP544
SYMAX 8020-SCP-424 8020SCP424
STROMBERG SAFUI-290F460 SAFUI290F460
SQUARE D NJHN36000S40ABSOY002 NJHN36000S40ABSO
SQUARE D NF1000G3N2 NF1000G3N2
SQUARE D HU663DS HU663DS
SQUARE D 8502-SGO2-V02S 8502SGO2V02S
SQUARE D 3020-CM2450 3020CM2450
SPRECHER & SCHUH PNS-0180-480V PNS0180480V
SIEMENS 6XV18206BT65 6XV18206BT65
SIEMENS 6SE9-521-8CC40 6SE95218CC40
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SIEMENS 6ES5-247-4UA31 6ES52474UA31
SIEMENS 6ES5-247-4UA31 6ES52474UA31
SIEMENS 6DD1-661-0AB1 6DD16610AB1
SIEMENS 6DD1-660-0AH0 6DD16600AH0
SIEMENS 6DD1-601-0AF0 6DD16010AF0
SIEMENS 6DD1-601-0AE0 6DD16010AE0
SIEMENS 6BK1-000-0CG00-0AA0 6BK10000CG000AA0
SIEMENS 6AV7-725-2BB10-0AC0 6AV77252BB100AC0
SIEMENS 6AU1-435-0AA00-0AA1 6AU14350AA000AA1
SIEMENS 1FT6105-8AB71-1TA0 1FT61058AB711TA0
SICK OPTIC ELECTRONIC LUT1-450 LUT1450
SICK OPTIC ELECTRONIC LUT1-440 LUT1440
SICK OPTIC ELECTRONIC LUT1-431 LUT1431
SICK OPTIC ELECTRONIC LUT1-410 LUT1410
SICK OPTIC ELECTRONIC LUT1-400 LUT1400
SAGINAW D-56059 D56059
RITTAL 3394.509 3394509
REXROTH 0-608-830-123 0608830123
RELIANCE ELECTRIC T2851303L-TX T2851303LTX
RELIANCE ELECTRIC T2851303L-SX T2851303LSX
RELIANCE ELECTRIC C1812ATZ C1812ATZ
RELIANCE ELECTRIC 86487-S 86487S
RELIANCE ELECTRIC 801429-SD 801429SD
RELIANCE ELECTRIC 3RA2003 3RA2003
RELIANCE ELECTRIC 0-51893-2 0518932
PPT VISION 661-0326-C30 6610326C30
OMRON NT600M-DT211 NT600MDT211
OMRON F400-C10E F400C10E
OMRON CV500-MC221 CV500MC221
NSK 23056-CAMK-E4-C3 23056CAMKE4C3
NEMATRON CORP ICC-310 ICC310
NEMATRON CORP IC61A1-CB5105F0 IC61A1CB5105F0
NEMATRON CORP IC61A1-C8910461 IC61A1C8910461
NACHI RAX11 RAX11