DSQC679 3HAC028357-001模塊示教器
DSQC679 3HAC028357-001模塊示教器
DSQC679 3HAC028357-001模塊示教器
DSQC679 3HAC028357-001模塊示教器原理圖
DSQC679 3HAC028357-001模塊示教器工作手冊
DSQC679 3HAC028357-001模塊示教器選型手冊
DSQC679 3HAC028357-001 變頻器運行時對PLC干擾應注意的問題
DSQC679 3HAC028357-001 變頻器運行時會對周圍電氣設備(包括P L C )產生較強的電磁干擾,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。
DSQC679 3HAC028357-001 為防止變頻器運行時對PLC干擾,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(guī)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,為抑制諧波干擾,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。如果干擾仍嚴重,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 安裝在同一電控柜時,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。
DSQC679 3HAC028357-001 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干擾應注意的問題;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,避免干擾造成變頻器、PLC 的誤動作;避免連接不當造成PLC 或變頻器的損壞。
DSQC679 3HAC028357-001 如果購買單位的在質保日期一年內發(fā)現有質量缺陷的,可以進行一個免費維修或更換。
ESM2000-9983 3
6ES7653-2CC00-0XB0 2
MV156-PDPMV1 1
MVI56-PDPMV1
BK1120 10
NCR-HB2222A-A000 1
C574 1SAR503041R0003 1
EVW010A0B41-HZ 60pcs
ICP DAS I-8411 100
Q軸減速機/R913014967 LPB070S-MX1-10-OE1-3S
R055706661 MKR-080-NN-2 1
ABB模塊交換機 MOXAEDS-516A-MM-SC 個 1
EDS-516A-MM-SC
R030513398 銘牌 EMC-063-NN-2
X20SO6300 2件
板卡 -AL09XB-08F-4Y234
板卡 -AL09SB-04F-4Y234
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ACCURAY 061589-002 061589002