8005 RT-108
8005 RT-108
8005 RT-108
變頻器運(yùn)行時(shí)對(duì)PLC干擾應(yīng)注意的問題
變頻器運(yùn)行時(shí)會(huì)對(duì)周圍電氣設(shè)備(包括P L C )產(chǎn)生較強(qiáng)的電磁干擾,同時(shí)變頻器主電路斷路器等開關(guān)器件動(dòng)作時(shí)也會(huì)影響PLC 的正常工作。為防止變頻器運(yùn)行時(shí)對(duì)PLC干擾,變頻器與P L C 相連接時(shí)應(yīng)該注意以下幾點(diǎn):
(1)對(duì)PLC 本身應(yīng)按規(guī)定的接線標(biāo)準(zhǔn)和接地條件進(jìn)行接地,而且應(yīng)注意避免和變頻器使用共同的接地線,且在接地時(shí)使二者盡可能分開。
(2)當(dāng)電源電壓波動(dòng)大,諧波成分多時(shí),為抑制諧波干擾,應(yīng)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(yán)重,應(yīng)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(shí),應(yīng)盡可能使與變頻器有關(guān)的電纜和與PLC 有關(guān)的電纜分開安裝,尤其是連接變頻器的強(qiáng)電電纜與連接PLC 的弱電電纜更要分開安裝。
4 結(jié)束語
變頻器和P L C 間連接問題,涉及到數(shù)字量信號(hào)連接、模擬量信號(hào)連接以及避免干擾應(yīng)注意的問題;在實(shí)際應(yīng)用中,兩者間的連接還涉及到用弱電信號(hào)控制強(qiáng)電的問題。因此,應(yīng)引起重視,避免干擾造成變頻器、PLC 的誤動(dòng)作;避免連接不當(dāng)造成PLC 或變頻器的損壞。
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VFD550B43C 數(shù)量1
VFD450B43A 數(shù)量1
8810-HI-TX
8811-IO-DC 各2
MTL-5042 10
A20B-2900-0310/05A
A20B-1005-0421/03A
QPJ2D100S2P數(shù)量1
SAN3-120SNS 1
SAN3-24S 1
CLV-BMA00A2B 1
D4SL-N4NFG-D 4
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6EP3332-6SB00-0AY0 1
6ES7134-6HB00-0DA1 1
134-6GD00-0BA1 1
6FX2002-1DC00-1CF0(25米) 3根
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6177R-RMPW7 面價(jià)27572
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138-4CA01-1AA0 1
6ES7136-6DC00-0CA0 8
6ES7136-6DB00-0CA0 2
TM241CE24T 1
1769-L32E 數(shù)量1 面價(jià):40906--------
842D-60131331BDA 數(shù)量2 面價(jià)10848
6ED1052-2HB08-0BA1 7
51198651-100 1 -----------
觸摸屏,觸摸屏HMIGXU6512 1-----------
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施耐德其他,熱備光纖490NOR00003 4
施耐德其他,模擬量輸入模塊,BMEAHI0410 1
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BMXAMO0210
施耐德其他,以太網(wǎng)通訊模塊,BMXNOC0402 1
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施耐德其他,電源BMXCPS3500 1
施耐德其他,背板BMEXBP1200 1
施耐德其他,前連接器(AI)BMXFTB2820 1
QPJ2D100S2P數(shù)量1
2CSF204005R2400 10pc
2CVM300101K1022 6pc
1SDA067113R1 2pc
1SDA068162R1 6pc
1SDA068161R1 2pc
2CDS272001R0204 60pc
2CDS200912R0001 60pc
2CDS200922R0001 60pc
1SDA067110R1 3pc
1SFA619403R5153 200pc
1SBL137001R1301 15pc
80026-172-23-R 1 85541
6ES7953-8LG11-0AA0 1
6ES7953-8LG31-0AA0 1
6ES7138-4FA05-0AB0 2
6ES7138-4CF42-0AB0 2
6ES7195-7HA00-0XA0 2
變頻器ACS850-04-050A-5+0J400/22KW 1
變頻器ACS850-04-078A-5+0J400/37KW 1
1SVR010203R0500 1
ABB CC-E IAC/ILPO
DCS800-S02-0260-05 4
DCS800-S02-0075-05 4
DCS800-S02-0200-05 12
ACS880-01-07A2-3 12
ACS880-01-02A4-3 18
SDCS-MEN-8(DCS800存儲(chǔ)卡) 20
DCS800-S02-0350-05 2
DCS800-S02-0100-05 2
ACS880-01-105A-3 4
ACS880-01-045A-3 2
ACS880-01-04A0-3 2
FEN-31 6
SK-R1-IB1-F8 9 面價(jià)1856
6ES7 331-7NF10-4AB1 19臺(tái)
272-0AA30-0YA1數(shù)量1
342-5DA02-0XE0數(shù)量2
314-1AG14-0AB0數(shù)量1
953-8LG20-0AA0數(shù)量2
323-1BL00-0AA0數(shù)量1
343-1EX30-0XE0數(shù)量1
321-1BH01-0AA0數(shù)量1
331-7NF00-0AB0數(shù)量1
?3AUA0000074145 1
BGDR-01C
3AXD50000042965 1
BDPS-11C
ATV310H037N4A
ATV310H075N4A
ATV310HU15N4A
ATV310HU22N4A
ATV310HU30N4A
PP881, 3BSE092978R1-----------
3ASD489301A410
YPK107E
440C-CR30-22BBB 1 面價(jià)7186.8
ABB ES2000-975 12只
VEE ARC 931-048 USPP 931048
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1 VEE-ARC PC6000-13A REGULATOR CARD Q9-4
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Vee Arc RIVCL 4 1/2HP Adjustable Speed Motor Controller
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VEE ARC PC7000-11J USPP PC700011J
VEE ARC MICRC 7000 MCF401K0A1 5 HP
VEE ARC GAC-A94V0 USPP GACA94V0
VEE ARC 404-082C USPP 404082C
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VEE ARC 930-111 NSPP 930111
VEE ARC 930-135 NSPP 930135
Vee Arc Board Electronic 930-074, #5368
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VEE-ARC 930-140 75HP VFD CHARGER BOARD 930140
Vee Arc 404-055 B 404055B Base Driver - New, No Box
VEE-ARC 913-111 DYNAMIC BRAKE ASSEMBLY ***XLNT***
VEE ARC PC BOARD PC6000-11B USED PC600011B
VEE ARC 900-949 USPP 900949
VEE ARC 930-013 USPP 930013
VEE-ARC CORP. 900-751 *NEW OUT OF BOX*
VEE ARC PC7000-46 USPP PC700046
VEE ARC PC7000-900-788 NSPP PC7000900788
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VEE-ARC PC7000 *NEW NO BOX*
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NEW Vee Arc Base Driver 930-136, #5182
VEE-ARC CORP. 900-949 DRIVE BOARD 900949
VEE-ARC CORP PC7000 REGULATOR BOARD *USED*
PC7000-UQ10 VEE-ARC REGULATOR BOARD NEW
VEE-ARC CORP. HIGH PERFORMANCE 3 HP AC SPEED DRIVE
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VEE ARC 930-110 NSPP 930110
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VEE-ARC 930-127 VFD BASE DRIVER BOARD 930127
VEE-ARC CORPORATION 900-753 *USED*