KCP2 00-130-547
KCP2 00-130-547
KCP2 00-130-547
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。
VFD550B43C 数量1
VFD450B43A 数量1
8810-HI-TX
8811-IO-DC 各2
MTL-5042 10
A20B-2900-0310/05A
A20B-1005-0421/03A
QPJ2D100S2P数量1
SAN3-120SNS 1
SAN3-24S 1
CLV-BMA00A2B 1
D4SL-N4NFG-D 4
NW20 H1 1
MO325-16A,4个
MO325-20A,4个
MO325-25A,4个
6ES7223-1PL32-0XB0 50个
MFE190-04UP-09A0-2+N802 1
ACH580-01-088A-4 -般应用+DPMP-EXT控制盘柜门安装组件 1
6EP3332-6SB00-0AY0 1
6ES7134-6HB00-0DA1 1
134-6GD00-0BA1 1
6FX2002-1DC00-1CF0(25米) 3根
6GK7443-5DX05-0XE0 数量3
6ES7216-2AD23-0XB8 数量2
6177R-RMPW7 面价27572
6186-M17ALTC 没有查到面价 数量:各2
触摸工控机 6AV7260-1GM30-0BX0 SIEMENS 1个
继电器 3RQ3018-1AB00 SIEMENS 2个
起动器 3RK1308-0DB00-0CP0 SIEMENS 4个
输入模块 6ES7136-6BA00-0CA0 SIEMENS 2个
6ES7223-1PL32-0XB0 50个
ABB DCS AC900F控制器PM902F 1
138-4CA01-1AA0 1
6ES7136-6DC00-0CA0 8
6ES7136-6DB00-0CA0 2
TM241CE24T 1
1769-L32E 数量1 面价:40906--------
842D-60131331BDA 数量2 面价10848
6ED1052-2HB08-0BA1 7
51198651-100 1 -----------
触摸屏,触摸屏HMIGXU6512 1-----------
施耐德其他,冗余RJ45模块490NAC0100 4
施耐德其他,热备光纤490NOR00003 4
施耐德其他,模拟量输入模块,BMEAHI0410 1
施耐德其他,模拟量输出模块,BMEAHO0410 1
施耐德其他,高速计数模块,BMXEHC0800 1
施耐德其他,运动控制模块,BMXMSP0200 1
施耐德其他,前连接器,BMXFTB2020 4
施耐德其他,模拟量输出模块,AMO0210 3
BMXAMO0210
施耐德其他,以太网通讯模块,BMXNOC0402 1
施耐德其他,输入模块,开关量BMXDDI6402K(施耐德) 1
施耐德其他,输出模块,开关量BMXDDO6402K(施耐德) 1
施耐德其他,数字量输入输出模块,BMXDDM16022 1
施耐德其他,储存卡BMXRMS008MPF 1
施耐德其他,CPU,M340 - max 1024离散+ 256模拟I / O - Modbus -以太网,BMXP342020H,施耐德 1
施耐德其他,电源BMXCPS3500 1
施耐德其他,背板BMEXBP1200 1
施耐德其他,前连接器(AI)BMXFTB2820 1
QPJ2D100S2P数量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
变频器ACS850-04-050A-5+0J400/22KW 1
变频器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存储卡) 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 面价1856
6ES7 331-7NF10-4AB1 19台
272-0AA30-0YA1数量1
342-5DA02-0XE0数量2
314-1AG14-0AB0数量1
953-8LG20-0AA0数量2
323-1BL00-0AA0数量1
343-1EX30-0XE0数量1
321-1BH01-0AA0数量1
331-7NF00-0AB0数量1
?3AUA0000074145 1
BGDR-01C
3AXD50000042965 1
BDPS-11C
ATV310H037N4A
ATV310H075N4A
ATV310HU15N4A
ATV310HU22N4A
ATV310HU30N4A
PP881, 3BSE092978R1-----------
3ASD489301A410
YPK107E
440C-CR30-22BBB 1 面价7186.8
ABB ES2000-975 12只
Wavetek 278 Synthesized Function Generator 12 MHz
Wavetek 184 5MHz Function Generator
WAVETEK 1034A POWER METER 10-18GHZ with Power sensor
Wavetek Acterna JDSU MS1400 CATV Signal Meter MS-1400
@CALIBRATED@5 to 890 MHz CATV Meter@90 Day Warranty!@
Wavetek 188-S-1257 sweep/function generator, NIST-certified
additional free NIST recalibration within one year
Wavetek JDSU CLI-1450 Cable Signal CATV Meter CLI1450
@CALIBRATED@5MHz-890MHz CATV Meter@90 Day Warranty@
WAVETEK 1901C, DISPLAY OSCILLOSCOPE
Wavetek Acterna JDSU MS1300 CATV Signal Meter MS-1300
@CALIBRATED@45 to 890 MHz CATV METER@90 Day Warranty!@
Wavetek 189 sweep/function generator, NIST-certified
additional free NIST recalibration within one year
Wavetek 21 Stabilized Function Generator 11MHz
WAVETEK 186 5 MHz PHASELOCK/ FUNCTION GENERATOR W/ MAN!
@@@ CALIBRATED @@@ CALIBRATED @@@ CALIBRATED @@@
Wavetek Model 171 Synthesizer / Function Generator
Wavetek model 171 Synthesized Function Generator
[2 units] Wavetek 8502 Peak Power Meter - Parts Units
Wavetek Fiberkit 850 ( FS 850 & FM )
WAVETEK 191 PULSE FUNCTION GENERATOR
WAVETEK 801 PULSE GENERATOR, 5Hz to 50MHz, 20V P-P Output
WAVETEK PHASELOCK GENERATOR MODEL 186
Wavetek 171 Synthesizer/Function Generator
WAVETEK 3600D WITH CCM-CDMA-800
90Day Warranty
WAVETEK 3600D CELLULAR TEST SYSTEM IS-136 TDMA GPIB ACELP
WAVETEK 193 20 MHz SWEEP/ MODULATION/ GENERATOR!
@@@ CALIBRATED @@@ CALIBRATED @@@ CALIBRATED @@@
Wavetek Model 404 Serial No. 4300945
Wavetek 193 Function/Modulation Gen .002 Hz to 20 MHz
NIST calibration/30-day warranty14-day right of return
WAVETEK SAM 1000 SIGNAL ANALYSIS METER
WAVETEK METER SAM 1 SIGNAL ANALYSIS METER
WAVETEK 275 PROGRAMMABLE ARBITRARY/FUNCTION GENERATOR!
@@@ CALIBRATED @@@ CALIBRATED @@@ CALIBRATED @@@
WAVETEK 148 20MHZ/AM/FM/PM FUNCTION MODULATION GENERATOR
Wavetek 1038-H11 Horizontal Amplifier
Wavetek Model 75 Arbitrary Waveform Generator
Wavetek 75A (75) Arbitrary Waveform Generator 5MHz Opt. 001 IEEE-488 TESTED!
H# Wavetek micro stealth MS1000
Wavetek 2407 Synthesized Signal Generator | 2 for parts
WaveTek Phase Meter Model 740
Wavetek Model 185 Sweep Generator
WAVETEK MS1000 SIGNAL LEVEL METER
WaveTek MS1000 MicroStealth Signal Level Meter
Wavetek Brickwall Filter Model 753A-002
WAVETEK 3000390100 FNFP 3000390100
Wavetek 180 Function Generator - Untested
WAVETEK 146 Function Generator/Sweep Generator GOOD
Wavetek 273 Synthesized Sweep Function Generator 12 MHz
CABLE GUY SPECIAL! WAVETEK CLI-1450, 5 POINT HARNESS, TORQUE WRENCH, SAFETY BELT
Wavetek CLI-1450 Cable Signal Level Meter w / Charger and battery
@@ WAVETEK 162 30 MHz FUNCTION GENERATOR! @@
@@@ CALIBRATED @@@ CALIBRATED @@@ CALIBRATED @@@
Wavetek 3600D/TDMA Cellular Test Set
Wavetek 271 12MHz Function/Signal Generator - Hobby Tech Test Electronic Pulse
WAVETEK MODEL 3600D, CELLULAR TEST SYSTEM
LOT of 10 Wavetek LP-50 Logic Probes
Wavetek 171 Synthesizer/ Function Generator
Wavetek model 132 VCG/Noise generator works
Wavetek 3600D/CDMA Cellular Test Set
Wavetek 3600D Cellular Test System CDMA
30-day warranty/14-day right of return
Wavetek 904 Signal Generator 3.7GHz to 7.6GHz ***DEFECTIVE***
WAVETEK 3600D CELLULAR TEST SYSTEM - Untested
Wavetek Model 166 50MHz Pulse / Function Generator
Wavetek Model 275 Function Generator
Vintage WAVETEK Model 166 0.0001Hz- 50 MHz PULSE/ Function GENERATOR 100- 240V
WAVETEK 2002 SWEEP GENERATOR
Wavetek MS1400 Cable Signal Level Meter w / Charger and battery