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505-T0D接触器
505-T0D接触器
505-T0D接触器
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。
3RW4055-6BB44 2
SGDV-1R6A01B 2个
FCU400-P 8
42FT1500206 6
42TT-15050A/C 3
T266DSHFSPNNH 1
T266GSHDFTNH 1
ABB 3BHB040253R0001,数量4
6MF1013-0CA10-0AA0/BB 2
LDX:L0133994 2
100-D180ED00 25 面价17055
JZSP-CF1M20-05-E 10PCS
JZSP-CF1G00-03-E 11PCS
BCH2LH1033CA6C 1
6SY7010-0AE74 2PCS
6SY7000-0AE51 2PCS
6ES5490-8MA13 2
USB转接器/3ABD0000040000 2WH 2个
ACS880-01-025A-3 2
16253930112A04 2
6ES7134-6GD01-0BA1 1台
7RW8020-5EB00-1DA0 1
150-F970NBA 1 165009
2904-BMP5-S 没查到面价
2094-BMP5-S
2904-BM02-S 没查到面价
2094-BM02-S
1734-EP24DC 1951
22B-D107N104 没查到面价
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22A-D1P4N104 5322
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1394-AM50 查不到面价
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4100-234-RL 面价216375
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140NOM21100 1
型号是:TYPE:TLG-408-01 1
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Motor M41 1台
342-5DA03-0XE0 1
AMK: AMKASYN KW20 - 2
6FX2001-5FS24 - 2
GCE9401766P0106
GCE9401766P0105
通风挡板 1HC0022684R0185 数量:2个
通风挡板 1HC0022684R0186 数量:2个
YX-DOUBLE-IFC01 1
MDD44-16N1B 2
EATON 控制板,部件号1024460,适用于UPS型号:9155-30-NTXHS-M-0 480v/120v;编码:1024460 B0000361332A03
MEASUREX 51402089-100 51402089100
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LENZE EVS9327-ESV906 EVS9327ESV906
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INDRAMAT MAC071C-0-NS-3-C/095-A-0/S001 MAC071C0NS3C095B
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HONEYWELL W7761A-2010 W7761A2010
HONEYWELL TVMP-E0-00-AM0-A00-F10-0U0000-00 TVMPE000AM0A00F1
HONEYWELL 51401570-100 51401570100
HONEYWELL 51195096-200 51195096200
HOFFMAN ENCLOSURES MHB11-0426-G306 MHB110426G306
HARMONIC DRIVE HTL8000-1L-AS-DC HTL80001LASDC
GIDDINGS & LEWIS 1-21783 121783
GHISALBA GH57.3.00-FG51 GH57300FG51
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FOXBORO P0961BD P0961BD
FOXBORO P0960GC P0960GC
FOXBORO B0133LA B0133LA
FISHER ROSEMOUNT 01984-2503-0001 0198425030001
FANUC A20B-0008-0911 A20B00080911
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ENDRESS & HAUSER 50P4H-EL0A1RA0BAAA 50P4HEL0A1RA0BAA
DYNAVISION M6-17-12 M61712
DANFOSS FC-102P7K5T2P21H2XGXXXXSXXXXAXBXCXXXXDX FC102P7K5T2P21H2
CUTLER HAMMER AN56SN0 AN56SN0
CUTLER HAMMER 5485SK-PMPP-5000 5485SKPMPP5000
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CONTROL TECHNIQUES M0598400 M0598400
CONTROL TECHNIQUES M0598300 M0598300
CONTROL TECHNIQUES FX-8400 FX8400
COMPUMOTOR 469876-01F 46987601F
COMAU SAU2-MOD-2 SAU2MOD2
COGNEX 800-5870-1 80058701
CLEVELAND MOTION CONTROL BNR5110GPA00CS0002 BNR5110GPAOOCS00
CAMCO 601RDM-C135 601RDMC135
BOSCH 0-608-830-142 0608830142
BAUMULLER BUS20-160/270-31-023 BUS2016027031023
BAUMULLER BUS20-160/270-31-022 BUS2016027031022
BARBER COLMAN GCM-86120 GCM86120
BALDOR MB7420AB MB7420AB
BAILEY CONTROLS NSSM-01 NSSM01
ASTRO MED IMCD-DDE3200 IMCDDDE3200
ASEA BROWN BOVERI GNT2009421R0001 GNT2009421R0001
ASEA BROWN BOVERI DPH-10051D-S15001/1 DPH10051DS150011
ASEA BROWN BOVERI ACS550-PC-072A-4+B055+K466+L511 ACS550PC072A4B05
ASEA BROWN BOVERI 57360001-A/6 57360001A6
ASEA BROWN BOVERI 57310001-LM 57310001LM
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ASEA BROWN BOVERI 3ADT306800R1 3ADT306800R1
ALLEN BRADLEY MPG-B050-031-M22 MPGB050031M22
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ALLEN BRADLEY 1756-L63 1756L63
ALLEN BRADLEY 1756-L61S 1756L61S
ALLEN BRADLEY 1756-L55M24 1756L55M24
ALLEN BRADLEY 1756-L1M3 1756L1M3
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ACCURAY QA-3-017948-003 QA3017948003
ACCURAY 100614-001 100614001