6ES7822-1AE08-0YA5
6ES7822-1AE08-0YA5
6ES7822-1AE08-0YA5
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。
YASAKAWA SERVO CONTROLLER CACR-SR 30TZ0SFY302 SERVOPACK CACR-SR30TZ6SF-Y8
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ALLEN BRADLEY 170014 REV. 2 PC BOARD
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Allen Bradley 1336-BDB-SP3A Gate Driver Board Series A 74101-582-53
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ALLEN-BRADLEY PLC SLC 500 1746-P2 AND 1746-A7 WITH 1746-0B16 AND 1747-L524
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Allen-Bradley 1771-A2B 8 Slot Chassis w/cards and Power Supply
ALLEN-BRADLEY 153H REF, 114 #2 DUST COLLECTOR FAN 480V 135A, 3PH 60HZ (OR11)
ALLEN-BRADLEY 1333-BAA AC FREQUENCY DRIVE 3PH 230VAC 14AMPS 4.4KVA NS**
ALLEN-BRADLEY 1326AB-B2E-11-3396C AC SERVO MOTOR, 3000-RPM, 2.5kW (RTS0412.595)
Allen-Bradley - SERVO MOTOR 460VAC 0.7NM 6K RPM RARE EARTH - 1326AS-B310H-21
Allen Bradly Servo Motor MPL-B4530F-SJ72AA
ALLEN BRADLEY X175431 * OUT OF A BOX* 848
ALLEN BRADLEY VERSAVIEW 1500P 6181P-15NSXPH SER. A REV. B 6181P15NSXPH
ALLEN BRADLEY ULTRA SERIES 1398-DDM-19X-DN SERIES A 9101-1812 W/DNET
ALLEN BRADLEY SP-151177 POWER SUPPLY BOARD * NO BOX*
ALLEN BRADLEY SLC 500 HIGH SPEED COUNTER MODULE 1746-HSCE SER. A 1746HSCE
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Allen Bradley Size 5 Motor Starter Cat# 509-FOB 200HP
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ALLEN BRADLEY PROCESSOR CONTROL MODULE 1772-LI REMAN 1772LI
Allen Bradley Powerflex 70 AC Drive 20A D 011 A 0 AYYANNN Series A 7.5HP 7.5 HP
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ALLEN BRADLEY POWERFLEX 40 AC DRIVE 22B-D010N104, 22BD010N104
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Allen Bradley PC Main Control Boad 1336F-MCB-SP1K V5.004
Allen Bradley PC Main Control Boad 1336F-MCB-SP1G V5.003
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Allen Bradley Panelview Plus 600 2711P-K6C20D8 6" Graphic Terminal
Allen Bradley Panelview 600, 2711-K6C10 series B
Allen Bradley PanelView 550 2711-B5A2 Ser B rev D FRN 1.07 GOOD!
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Allen Bradley PanelView 1000 2711-T10C15
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Allen Bradley Nema 3 Reversing Motor Starter 505V-DOD 50 HP 600 VAC 90 Amp
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Allen Bradley Bulletin Drive 1361DO6418_1361-DO64-18_103618 Rev 06_103620 Rev 07
Allen Bradley Bulletin 1334-DOB Adjustable Freq Motor Drive 1334-EOB C2 N4 T3 W3
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ALLEN BRADLEY AC DRIVE 1305-BA01A-HA2 SERIES C * OUT OF BOX* (AS PICTURED)
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