3HAC060334-001電機
3HAC060334-001電機
3HAC060334-001電機
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PLC)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PLC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PLC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PLC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。
激光避障傳感器S30B-311DA
艾默生IC694ALG232 6
艾默生IC695ECM850 6
艾默生ME98MBP001 3
7MH4950-1AA01 1
6SL3912-5AP36-0AA0 2
FR-E740-5.5K-CHT 1
K55HXDFJ-6841 1
QS30FF400Q 4
DVP20SX21 1
DVPPS0 2
AS16AM10N-A 2
DVP08SP11R 3
ODOP-PNM02 V2.0 10
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8I86T407500.0P-200 1piece
X20CA0E61.00300 1piece
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8BCM0020.1111A-0 7pieces
8BCM0007.1111A-0 1piece
8B0M0160HW00.000-1 1piece
6PPT80.156B-10B 1piece
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8JSA52.EB045D100-0 2pieces
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ADAM-6024-D 4
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UN0-PS/1AC/24DC/240W
ERV 180 1024 03912-03 Heidenhain 1
Pro-face Digital Electronics model 3280007-12 AGP3301-S1-D24 1
Danfoss FC-102N560T4E54H2TGC3XXSXXXXAXBXCXXXXDX PIN:135U4000 S/N:000302H298 1
MPU-H-700/154 1
FS28184-75-34 4
ECSEE020C4B Lenze? —?2
LENZE E82ZAFPC010? —?5
?ECSEA016C4B Lenze? —?1
FN080-SDA.6N.V7P2 . 141676 - 5
AMK: AMKASYN KWD2 - 2
SICK: WTB2S-2P1330 - 3
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QM/32/P Norgren QM/32/P - 1
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Nidec Servo D1751S48B9CP-54 (3AUA0000083484) 172x51 48V 2.3A OEM - 1
Telemex XCM NFC 63-140/145 - 10
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130B1107 danfoss 1個
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6ES7954-8LT03-0AA0 1
GENERAL ELECTRIC EVWHS553CD04 EVWHS553CD04
GENERAL ELECTRIC DS3800HAFA-1D1E DS3800HAFA1D1E
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GENERAL ELECTRIC 837X67 837X67
GENERAL ELECTRIC 745-W3-P5-G5-HI-A-E 745W3P5G5HIAE
GENERAL ELECTRIC 6351091AC 6351091AC
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GENERAL ELECTRIC 12SBC23C1D 12SBC23C1D
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GE FANUC IC752SKT003 IC752SKT003
GE FANUC IC3600SSLB1 IC3600SSLB1
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GE FANUC A06B-0163-B575 A06B0163B575
FISHER ROSEMOUNT ES-72-70574 ES7270574
FANUC A860-0056-T020 A8600056T020
FANUC A20B-0006-0430 A20B00060430
FANUC A16B-1210-0030 A16B12100030
FANUC A06B-6058-H101 A06B6058H101
FANUC A06B-0707-B001 A06B0707B001
FANUC A06B-0614-B031 A06B0614B031
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EUROTHERM DRIVES 590L/0350/9/1/1/0/0/00/000 590L035091100000
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ENDRESS & HAUSER 93WA1-BA1A20RCBAAH 93WA1BA1A20RCBAA
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EMERSON RT-460SB RT460SB
EEC AEG THYRO-3M-500-495-HF THYRO3M500495HF
DYNAMATIC 15-886-3 158863
DOMINO DPX-2000 DPX2000
CUTLER HAMMER NPBILL20 NPBILL20
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ASEA BROWN BOVERI BVC4HRD040302P BVC4HRD040302P
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ALLEN BRADLEY 1395-B69-C1-P10 1395B69C1P10
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ADEPT TECH 30350-10352 3035010352
ACUITY IMAGING 002-PV900 002PV900
ACCURAY 085221-001 085221001
ACCURAY 064892-002 064892002
ACCURAY 061595-003 061595003