101-1633-009
101-1633-009
101-1633-009
4、 变频器运行时对PLC干扰应注意的问题
变频器运行时会对周围电气设备(包括P L C )产生较强的电磁干扰,同时变频器主电路断路器等开关器件动作时也会影响PLC 的正常工作。为防止变频器运行时对PLC干扰,变频器与P L C 相连接时应该注意以下几点:
(1)对PLC 本身应按规定的接线标准和接地条件进行接地,而且应注意避免和变频器使用共同的接地线,且在接地时使二者尽可能分开。
(2)当电源电压波动大,谐波成分多时,为抑制谐波干扰,应在PLC 的电源模块及输入/ 输出模块的电源线上接入噪音滤波器或者隔离变压器。如果干扰仍严重,应考虑在变频器主回路中接入电抗器、变压器和噪音滤波器等措施。
(3)变频器和P L C 安装在同一电控柜时,应尽可能使与变频器有关的电缆和与PLC 有关的电缆分开安装,尤其是连接变频器的强电电缆与连接PLC 的弱电电缆更要分开安装。
4 结束语
变频器和P L C 间连接问题,涉及到数字量信号连接、模拟量信号连接以及避免干扰应注意的问题;在实际应用中,两者间的连接还涉及到用弱电信号控制强电的问题。因此,应引起重视,避免干扰造成变频器、PLC 的误动作;避免连接不当造成PLC 或变频器的损坏。
如果购买单位的在质保日期一年内发现有质量缺陷的,可以进行一个免费维修或更换。
ABB GCE7000880R0111 1
6ES7214-1BG40-0XB0 2
6ES7241-1CH32-0XB0 4
6ES7155-6AA01-0BN0 4
6ES7131-6BH01-0BA0 44
6ES7132-6BH01-0BA0 18
6ES7134-6GF00-0AA1 15
6ES7135-6HD00-0BA1 11
6ES7193-6BP00-0DA0 29
6ES7193-6BP00-0BA0 27
6ES7155-6AU01-0CN0 ------
6ES7136-6BA00-0CA0
6ES7136-6DB00-0CA0
6GK5208-0BA00-2AC2 -------
ACS800-104LC-0705-7+E205 3AUA0000032552 1
JAMSC-120AV00100 2
JAMSC-120AVO0100
6GK7 443-1EX30-0XE0 1个-------
1C31181G01 Emerson 数量 4--------
1C31204G01 Emerson 数量 2-------
1X00102H01 Emerson 数量3--------
1C31197G01 Emerson 数量2-----
3ABD00018091
3AUA0000160631-D
3AFE10005019
3ABD00042217
3ABD68685192-D
3AFE64606859
3AFE10005019
3ABD00010542 各一
ABB 0DPZ0164691961 A 2/2 2
1747-AENTR面价25895------
A16B-2200-069
HU364DS 3
HU365DS 1
6ES7214-1HG40-0XB0 1个
6ES7221-1BH32-0XB0 1个
6ES7234-4HE32-0XB0 1个
6ED1052-1FB00-0BA6 需安装好程序 2
A06B-6077-H106 1----
120-2TE21-0AD0 1
002-5CA51-1AG0 1
002-2CA31-1AG0 2
002-5PA21-1AG0 1
247-0AA00-0AA3 1
6SN1145-1AA01-0AA2 1-------
123-1AA00-0HA1 1
6FC5372-0AA30-0AB0------
6FC5348-0AA02-0AA0 1--------
6FC5247-0AA00-0AA3 1------
1485C-P1A500 500米 面价32221
6EP1436-3BA01 1
170M4410 EATON'S BUSSMANN FUSE
170M4183 EATON'S BUSSMANN FUSE
170M4182 EATON'S BUSSMANN FUSE
170M3986 EATON'S BUSSMANN FUSE
170M3766 EATON'S BUSSMANN FUSE
170M3716 EATON'S BUSSMANN FUSE
10316H2000A EATON CUTLER HAMMER Limit Switch GL
(3) Eaton GHB2020 Industrial Circuit Breakers 20A 277/480VAC 2 Pole
MP2B-330 EATON FIXED INDUCTOR 33uH 1.7A 0.09ohms QTY: 550 REEL
Motorschütz EATON Moeller DILM32-10(230) 15KW, 277260; 3H+1S, Schütz;Hilfsschütz
Motorschütz EATON Moeller DILM32-01(230) 15KW, 277292; 3H+1?, Schütz;Hilfsschütz
Motorschütz EATON Moeller DILM25-10(230) 11KW, 277132; 3H+1S, Schütz;Hilfsschütz
Motorschütz EATON Moeller DILM25-01(230) 11KW, 277164; 3H+1?, Schütz;Hilfsschütz
Moeller-Eaton Netzschalter 400V AC bis 100A P3-100 für Verteiler
Moeller-EATON Leistungs-Schütz DILM72 37KW 230V~ DILM 72 NEU, OVP
Moeller-EATON Leistungs-Schütz DILM65 30KW 230V~ DILM 65 NEU, OVP
Moeller/Eaton T0-8-15290/EZ Cam switch (NOS)
Moeller, Eaton Base Unit -- PKZ2 --
MOELLER, CONTACT RELAY 27AMP 110-120 COIL,CAT#CN15DN3, MINT
MOELLER, CONTACT RELAY 27AMP 110-120 COIL,CAT#AN16DNO, MINT
MOELLER NZMB1-A, 3-Pole 50A Circuit Breaker 480Y 277V AC w/ EATON Switch
Moeller Motorschutzrelais ZB150-100/KK (Eaton) ZB150
Moeller Electric EATON MFD-TAP13-NI-A E/A MFD 24VDC
Moeller Eaton SN1,0(400/24) Steuertrafo *Neu/OVP*
Moeller Eaton Schütz DILM50 22KW 230V 50Hz/60 (XTCE050D00G2) NEU/OVP
Moeller Eaton Schütz DILM50 22KW 230V 50Hz 240V 60Hz NEU/OVP
Moeller Eaton Motorschutzschalter PKZM4-58 (50-58A) NEU
Moeller Eaton M22-WS Key Selector Switch 00786685280707
Moeller Eaton Klemmbock Anschlussklemme Terminal K95/4 NEU
Moeller Eaton Frequenzumrichter RA - SP2 - 342 - 075/ C2 - 060 0,75 kW
Moeller Eaton Easy 621-DC-TC Easy Relay 12 in/ 8 Transistor out
Moeller Eaton DILM80 Schütz 37KW Spule 230V Moeller MSAA239402
Moeller Eaton DILM72 Schütz 37KW Spule 230V Art. 107670
Moeller Eaton DILM50 Schütz 22KW Spule230V Moeller 277830 ohne Ovp.
Moeller Eaton Analog Eingang Thermo XN-2AI-THERMO-PI Micro Innovation
Moeller Eaton AD 40/5-1 Bus System