VAL-MS 230/3+1保護器
VAL-MS 230/3+1保護器
VAL-MS 230/3+1保護器
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。
貝加萊兩軸驅動模塊8BVI0055HWD0.000-1 REV.00
貝加萊電源模塊 B&R 8BVP0440HW00.000-1
貝加萊輔助電源模塊 B&R 8B0C0320HW00.002-1
CM-KRN 1SVR450081R0000 1
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FX5-8AD 9
2080-SERIALISOL 面價757
2085-IQ32T 面價2173
制動電阻 SAFUR210F575 2個
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6FX5002-2DC10-1BC0
YOKOGAWA SBSD SBSD
YASKAWA ELECTRIC USADED-45-YR14 USADED45YR14
YASKAWA ELECTRIC JANCD-SV02C JANCDSV02C
YASKAWA ELECTRIC JANCD-SV02B JANCDSV02B
YASKAWA ELECTRIC CIMR-H110B.D-10 CIMRH110BD10
WHEDCO MTR-3S86-G-R-0-E-S MTR3S86GR0ES
VEE ARC 931-048 931048
TYCOR PTYSXTY480YEDRSX PTYSXTY480YEDRSX
TYCOR PTY-H-277/480-PD-4XTS PTYH277480PD4XTS
TRIDIUM INC WEB-545I-AX WEB545IAX
TREND IQ3-4002K4096 IQ34002K4096
TRANSTECTOR ACP100BW ACP100BW
TEXAS INSTRUMENTS PLC VPU210-3105 VPU2103105
TELEMECANIQUE ATV-452D15 ATV452D15
TB WOODS DVC51000AXN0BG DVC51000AXN0BG
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STROMBERG SAFT-101-C0N SAFT101C0N
SQUARE D SED362000LSGET1A8 SED362000LSGET1A
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SICK OPTIC ELECTRONIC LMS-200-S60 LMS200S60
SCHWEITZER ENGINEERING SEL-121F-X-4256MHNB SEL121FX4256MHNB
RELIANCE ELECTRIC FLEXPAX3000 FLEXPAX3000
RELIANCE ELECTRIC DDM-019X DDM019X
RELIANCE ELECTRIC B/M-60001-1 BM600011
RELIANCE ELECTRIC B/M-60001 BM60001
RELIANCE ELECTRIC 86466-87T 8646687T
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RELIANCE ELECTRIC 57C-435A 57C435A
RELIANCE ELECTRIC 57C-435 57C435
RELIANCE ELECTRIC 45C-203 45C203
RELIANCE ELECTRIC 10P8171 10P8171
RELIANCE ELECTRIC 0-57435-G 057435G
RELIANCE ELECTRIC 0-52837 052837
RELIANCE ELECTRIC 0-52501-1 0525011
PANASONIC YB-020UDD YB020UDD
NEMATRON CORP ICC-8L6-HS1-850 ICC8L6HS1850
MODICON MM-PMC3-100 MMPMC3100
MODICON MM-PMA2-400C MMPMA2400C
MODICON I646-4 I6464
MODICON AS-509P-007 AS509P007
MODICON 141-MMS-425-01 141MMS42501
MIYACHI IS-471B IS471B
豫公安備 41010502000017號