VRDM368/50LWC電機_廈門海通華業科技有限公司

VRDM368/50LWC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。

ENC-1-3-T-24 3

SME-1-S-LED-24B 6

358-015-02-U77 6

B&R 8LSA44.E3030D300-0 1

B&R 8LSA44.E3030D101-1 1

B&R 8LVA23 B1015D1000 1

25C-A4P8N114數量面價4317

6ES7522-1BH10-0AA0 X45 1

EM235,CTS7 235-0KD32 1

EM231,CTS7 231-7PB32 1

NS2104MT 1

A5E00714565 1

E82EV371-2C E82EV751-2c 各一個

CT-AHC.22 6

FX1N-40MT-001 1

NL6448AC33-24 2塊

7820Z172-A16a 1

1 : PNUEMATIC CYLINDER DNC-100-1000-PPV

2: PNUEMATIC CYLINDER DNU-100-1400

3 : PNUEMATIC CYLINDER DNG-80-900-PPV-A

4 : PNUEMATIC CYLINDER DNC-80-140-PPV-S6

5 : PNUEMATIC CYLINDER VL/O-3-1/4-EX

24N2A16A150

SME-1-S-LED-24B 6

ENC-1-3-T-24 3

E2E-X5ME2-N (NPN-NC) 12

CPM1A-40CDR-D-V1 2

MSEB-3-24vdc, Order code: 389614 D

Qty: 10 PCS Brand: Festo

Kit Power Supply, 100-230VAC, Ex

Material Code: 71323007

Product Number: 71345534

Brand: Endress Hauser 1

MVI56E-MNET-------------

CSD5-04BX1 1

XPD0024-AC00 數量1臺

模板 FBM03 數量1

模塊 433M MODBUS 12入12出數量1

模板 AI711-S11 數量1塊

模板 AI722-S11 數量1塊

模板 DI716-S11 數量1塊

微型斷路器 IC65N 3P C63A 數量6

FRN55G1S-4C 1臺

Model: PMVN-5-1/4

Model: SHP 024 048

DVS-DIPA-63X 1

RDV100M4-57 1

AI-808BXL2L2X 1

MB80 CPU721E 1

PRT1-SCU11 2個

NERCAR-SIS-cam-04-18 2

ATC48MS30ⅢA 2個

Pepperl+Fuchs (352855) KFA6-STR-1.24.4 1

Lenze E84AVHCE2512SX0 250W

GENERAL ELECTRIC FVK37ED6 FVK37ED6

GENERAL ELECTRIC DS3860NVCD DS3860NVCD

GENERAL ELECTRIC DS3800HUMA1B1C DS3800HUMA1B1C

GENERAL ELECTRIC 186C8141G1 186C8141G1

GENERAL ELECTRIC 117D6635G2 117D6635G2

GENERAL ELECTRIC 115D2227G4 115D2227G4

GENERAL ELECTRIC 115D2219G2 115D2219G2

GE FUJI 6KG1143060X9B1 6KG1143060X9B1

GE FANUC IC752WTG572 IC752WTG572

GE FANUC IC670ALG620 IC670ALG620

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GE FANUC IC3606SPCC1D IC3606SPCC1D

FLUKE 720A 720A

FISHER ROSEMOUNT 01984-4164-0004 0198441640004

FESTO ELECTRIC DNC-63-192-PPV-A-K3-KP DNC63192PPVAK3KP

FANUC A350-0004-T012/01 A3500004T01201

FANUC A20B-0009-0930 A20B00090930

FANUC A06B6059C212 A06B6059C212

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FANUC A06B-0502-B751 A06B0502B751

FANUC A06B-0368-B231 A06B0368B231

DYNASERV DR-1100A-115 DR1100A115

DYNAMATIC 15-867-13 1586713

CUTLER HAMMER P3BDK3400GN P3BDK3400GN

CUTLER HAMMER NS360900A NS360900A

CUTLER HAMMER DH363UWK316 DH363UWK316

CUTLER HAMMER DH363NWK DH363NWK

CUTLER HAMMER 92-01815-03 920181503

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CONTROL TECHNIQUES FX-6120 FX6120

CONSULTRONICS DLS400 DLS400

COGNEX 800-5855-1B 80058551B

CISCO UCS-IOM-2208XP UCSIOM2208XP

CARRIER 06DS8246BC365ARP 06DS8246BC365ARP

BOSCH 1070081259-102 1070081259102

BOSCH 1070081259-100 1070081259100

BARDAC PLX115/270 PLX115270

BALDOR ZD18H440-EO-D ZD18H440EOD

BALDOR MB7-160-AB MB7160AB

BALDOR ID15H450-EO ID15H450EO

BAILEY CONTROLS INNPM-12 INNPM12

AVTRON AFS056-4CNO-C AFS0564CNOC

ATLAS COPCO ETD-S7-50-13-CTADS ETDS75013CTADS

ASEA BROWN BOVERI QK-190-0R6501 QK1900R6501

ASEA BROWN BOVERI 750191-001B 750191001B

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ALLEN BRADLEY 1326AB-B515E-21-K5 1326ABB515E21K5

ALLEN BRADLEY 104-B400ND3 104B400ND3

AGA 680 680