DSQC602模塊
DSQC602模塊
DSQC602模塊
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。
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J250E
E125B
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6ES7322-8BH01-0AB0 SIEMENS
6SL3120-2TE13-0AA3 數量2
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J250E 3個
E125B 2個
TEMP. 監控繼電器, ABB, CM-TCS-135
開關保險絲控制卡, BSFC-02C
ABB 光纖電纜 , NLWC-03 , 3 米長
繼電器, 24VDC, CR-M024DC4L
EMPARRO 電源 1相, 輸入: 100-240 VAC, 輸出: 24-28VDC / 5A,9000
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008-0BA10-1AB2
Y-2006-2-H04AA 1面價43964
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ACS800-104-0580-7+C126+E205(ABB) 14
VRT600 2
NT538 1
T154 1
DQ96-X-2961510930 6
M4T32-BR12SH6 7
SGDH-50DE-OY 1個
6ES7132-6HD01-0BB1 20
6ES7193-6BP20-0BB1 20
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6ES7132-4BD32-0AA0 8
6ES7193-4CB30-0AA0 20
6ES7131-4BF00-0AA0 3
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203-0CE21-0AA0 1
040-1LA01-0AA0 1
210-1PB15-5UL0 1
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130-6TE21-6AA3 2
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AF205-30-11-13 2
1SDA062102R1 2
CDP312R 3
1SDA063552R1 2
3AUA0000054712E2400524KK 1
3AUA000044173A2362333KK 1
ACS510-01-012A-4 1
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NDP 2212 1
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2080-LC20-20QBB 2109 3
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A1A0100275,一個
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490NAE91100 4
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6AG1315-2AH14-7AB0
952-1AY00-0AA0
313-6CE01-0AB0
312-1AE14-0AB0
335-7HG02-0AB0
313-5BE01-0AB0
652-0XX04-1XE1
640-0DA11-0AX0
405-0RA02-0AA0
181-4MB00-0AX0
181-8XP00-0AX0
6AV6640-0CA11-0AX1
197-1LB00-0XA0
A06B-6093-H103 1-------
ACH580-01-106A-4 55KW 1個
ACH580-01-145A-4 75KW 1個
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SCHNEIDER ELECTRIC 輸出模塊 TWDDDO32UK USD 3
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6SL3055-0AA00-6AB0 1
NJ15-30GK-N-150 4
UAR1210B/IAR1210B 1
EagleOne -0200T1T1SDDZ90000HHE05 1
Pt100 (Support 2 Wire, 3 Wire RTD) 208:36:25
AIENSN 數據線 NW0H-CNV 2
6AV7674-1MA00-0AA0 1
6AV7674-1MG00-0AA0 1
1P00028G01 1
1X00781H01 1
952-1ky00-0aa0 20
68569591 6
VRT600 2
NT538 1
T154 1
DQ96-X-2961510930 6
100150090 1
QUINT-DIODE/20A 3
Q12PRHCPU 2
140DAI75300 4
490NTW00005 4
AK-R2-120P1K2*3個面價2479
FRN30G11S-4 30KW
FRN30G11S-4c 30KW
NI 9866
MXE-5301G 各1
M-FASTSFP-MM/LC-DC24V-24V 2
6GK5738-1GY00-0AA0數量1
6ES7155-6AU00-0DN0 1
PM207 10A 2
6FH9525-3DY60 2
WF16AF1U1 2
WF16AF1M24 2
ZS-630 1
wes1000-06a150-101 1
RMCV5100-10/115-A 1
ATV1100800A1001C 1
CIRCUIT BREAKERHFD3125LUA斷路器
F5PAE140P100 1
6SE7041-8GK85-0LA0 1------
Y-2006-2-H04AA 1
(FISHER)DVC6200F;32VDC MAX,145PSI MAX;INPUT DC:FIELDBUS
1套
SK-Y1-DCFAN1 10
IEC947-7-1 11
DRT1-MD16T-1 2個
DRT1-MD16TA-1 2個
NJ600B-550HFF 1孟加拉
KL3404
ASL09-30-01-81
XCK-J.C
MKP850-D-38
KA1725HA2
46.61.9.024.004
PLC-BSC-230UC/21/SO46
PLC-BSC-24DC/21
KN007026111
KN001002111
KN001007211
KN001008133
NPS8202-2A-71 4
FFB1224SHE DC24V 1.20A 1
EFB0924HHE DC24V 0.30A 1
HEAG 174ST 1
FL SWITCH SF 16TX 1
FL SWITCH SFNB 5TX 1
KFD2-HLC-Ex1.D.2W 1
EDR-120 1
DILA-XH122 1
PKZM0-4 2
PKZM0-10 2
PKZM0-6.3 2
DILM17-10 3
DILA31 8
K2E225-RB92-09 2
TT251N18KOF 3個
AX18-30-01+CA5X-22M 3
|7PA2231-1 2
AWK-3131A-US 1
“SCALANCEW700 774-1RT45” 1
FBoX-4G 1
TZ245814-PNF 5
FP50R12KT4 1
CB1-R-24V 1
CM1-R-24V 1
TSW-12A-2P?VAC 2
X20AT4222 1