EVS9330-EP
EVS9330-EP
EVS9330-EP
變頻器運行時對PLC幹擾應注意的問題
變頻器運行時會對周圍電氣設備（包括P L C ）產生較強的電磁幹擾，同時變頻器主電路斷路器等開關器件動作時也會影響PLC 的正常工作。為防止變頻器運行時對PLC幹擾，變頻器與P L C 相連接時應該注意以下幾點：
（1）對PLC 本身應按規定的接線標準和接地條件進行接地，而且應注意避免和變頻器使用共同的接地線，且在接地時使二者盡可能分開。
（2）當電源電壓波動大，諧波成分多時，為抑制諧波幹擾，應在PLC 的電源模塊及輸入/ 輸出模塊的電源線上接入噪音濾波器或者隔離變壓器。如果幹擾仍嚴重，應考慮在變頻器主回路中接入電抗器、變壓器和噪音濾波器等措施。
（3）變頻器和P L C 安裝在同一電控櫃時，應盡可能使與變頻器有關的電纜和與PLC 有關的電纜分開安裝，尤其是連接變頻器的強電電纜與連接PLC 的弱電電纜更要分開安裝。
4 結束語
變頻器和P L C 間連接問題，涉及到數字量信號連接、模擬量信號連接以及避免幹擾應注意的問題；在實際應用中，兩者間的連接還涉及到用弱電信號控制強電的問題。因此，應引起重視，避免幹擾造成變頻器、PLC 的誤動作；避免連接不當造成PLC 或變頻器的損壞。
如果購買單位的在質保日期一年內發現有質量缺陷的，可以進行一個免費維修或更換。
DQX1-8c11/5AS11 2.00
L1-3000/660-11-GC 2.00
HV300-A04T04500B 1.00
106-2B00-2AC2 1.00
SK3100 1.00
YTH-WG20151 1.00
R2-3500/1000-11-GC 6.00
L1-1500/440-11-GC 2.00
R1-1200/440-11 2.00
R2-4000/660-11-GC 2.00
516.SY0003.05 1
MSC301E-COCC 20
HART475 1
JL-FS50-600 20
EC510H-4BXX-09A8 1
JSR1-400/R 2
BM136A 2
BM136B 2
BM136C 2
QY2-2000S/T 2
QY2-500S/T 2
PHASE MODULEPOWER CELL ACS580MV_PEBB_R6
ZN63A(VS1) 1
CPA 100-220 1
CPA 101-220 1
QT18-4U/T3385 5
QT18-5U/T2961 2
QCX-H2B(1) 2
WT-6000 3
D0B-0815040 5
516.SY0003.04 1
516.SY0003.05 1
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INDRAMAT 112D-2-HD-1-8/130-A-0/J1250/S05 112D2HD18130A0J1
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HEIDENHAIN CORP 359651-02 35965102
HALLIBURTON MP-48 MP48
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GENERAL ELECTRIC 0784E661G0002 0784E661G0002
GE FUJI 6KDV5088R9X9 6KDV5088R9X9
GE FANUC IC752WTA058 IC752WTA058
GE FANUC IC752DPA062 IC752DPA062
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DANFOSS 175H4447 175H4447
DANFOSS 175H4147 175H4147
CUTLER HAMMER S801R10P3S S801R10P3S
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ASEA BROWN BOVERI UC86-8CH UC868CH
ASEA BROWN BOVERI GNT2009473R0100 GNT2009473R0100
ASEA BROWN BOVERI ACS604-0320-6-000B0000901 ACS60403206000B0
ASEA BROWN BOVERI ACS604-0100–6–000B0200901 ACS60401006000B0
ASEA BROWN BOVERI 57520001-BZ 57520001BZ
ASEA BROWN BOVERI 57310001-CC 57310001CC
ASEA BROWN BOVERI 3HAB6182-1 3HAB61821
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APW MCLEAN M52-1218-017H M521218017H
ALLEN BRADLEY 8600-2214-H-OA 86002214HOA
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ALLEN BRADLEY 506309 506309
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ALLEN BRADLEY 150-A97NCD 150A97NCD
ALLEN BRADLEY 1395-B74-C2-P10 1395B74C2P10
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ALLEN BRADLEY 1336-B020-EAE-L3-S1 1336B020EAEL3S1
ALLEN BRADLEY 1334-GOB 1334GOB
ALLEN BRADLEY 1326AB-C4C-11 1326ABC4C11
ALLEN BRADLEY 1326AB-B740C-21 1326ABB740C21
ALLEN BRADLEY 100-B600NA3 100B600NA3
ADEPT TECH 10332-00655 1033200655
ACTUS POWER NPSA-20NN-50E8 NPSA20NN50E8
ACCURAY 069829-002 069829002
ACCURAY 061577-003 061577003
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