44A717588G01
44A717588G01
44A717588G01
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。
9-6
MC07B0300-503-4-00数量1
FZ2400R12HE4-B9
FZ1200R12KE3
CM-MPN52.S 各一
6GK7242-7KX30-0XE0 1------
242-7KX30-0XE0
BMXXBP0400 1
BMXP342020 1
ABB AF16Z-40-00-23 4
1746-NIO4I 2 22487
逆变模块ACS800-104-0060-7+N664 2台
逆变模块ACS800-104-0580-7+E205+V991 2台
6DD1607-0CA1 1------
GE D20 EME 1台
ATV71HC28N4
ATV930C11N4C
ATV930D45N4
ATV930C13N4C
ATV930D55N4 各1
断路器MT 50H2/3P 5.0A 5000A 抽出式 施耐德,1套
6ES7656-8XP302-GF0 1个
6ES7656-8XP30-2GF0
6SE7032-7EB87-2DA1-Z=M08 1个
ATV71HU55M3Z
ATV71HU22M3Z 各1
140NOC78100 2
6ES7350-2AH01-0AE0
6ES7407-0KA01-0AA0 各1
A06B-6240-H105 8-----
6AU1510-1AA00-7AA0 1
2090-CFBM7DD-CEAA15 1 面价 3050
1791DS-IB16 2 面价8904
6SL3210-1KE14-3UF1 2
6SL3210-1KE17-5UF1 1
变频器 6SL3210-1KE31-4AB1
变频器 6SL3210-1KE31-1AB1
变频器 6SL3210-1KE31-7AB1
6GK5798-0SN00-0EA0-------
6GK5795-1TN00-1AA0------
IC693CPU350 3
IC693CMM311 2
IC693ALG223 3
IC693ALG392 1
IC693BEM330 2
6ES7517-3AP00-0AB0 1
6ES7515-2AM02-0AB0 1
6ES7137-6AA01-0BA0 1
6ES7288-5CM01-0AA0 3
6SL3120-2TE13-0AA3 1个
6SL3120-2TE15-0AA4 1个
HARS700/190Ⅱ 1
ACS800-107-0005-3+F268+G 1
6SL3350-6TK00-0EA0 Version:C 1
FZ2400R17KE3_B9_S1 3
ACS800-04-0023-3+E200+K454+L509+N671 1
ACSM1-04AM-02A5-4+K454+L502 1
C98043-A7003-L4-9---------
品牌: YSU/C31553ABEAAG 1
6RY1703-0EA02 1====
6RY1703-0CA03 1-----
C98043-A7014-L1-4-------
6RX1700-0AK00 1
6RY1703-0GA01 1
6SL3353-1AE41-5DA1 1
G1B4 TZ800N16KOF 6
E78996 VSKE270-20 3
6RY1702-0CA38 4------
N3533ZD220 4
6RY1702-0CA34 4------
6RY1702-0CA00 4-----
6RY1702-0CA04 4-------
6RY1700-0AA03 4-------
6RY1700-0AA10 4--------
6AV6643-0CB01-1AX1数量1------
ACS510-01-180A-4 1
RSYC-01 68838967 ABB 1
6GK5416-4GS00-2AM2 1-----
22b-d017n104 1 面价12882
6ES7134-6GF00-0AA1 10
3RT5075-6AP36 4
7MF1565-3BG00-1CA1 1
ACS355-03E-04A1-4 1
1756-M16SE/A 1
5069-IF8 面价 7706
5069-L310ER 面价 24295 1
6SL3995-6AX00-0AA0 1个
IC695CHS007 7
IC695PSD040 7
IC695CPE305 7
IC694MDL645 21
IC694MDL740 14
IC694TBB032 14
6SL3224-0CA31-1UA0 1
6SL3224-0CA31-5UA0 1
6ES7226-6BA32-0XB0 1
140CPU65260 面价 96907----
5069-OW16 6226 1
2711-K5A1 20700 1
6ES7513-1FL01-0AB0 一个
6ES7 215-1AG40-0XB0 8
施耐德M241系列PLC:
1.TM241C24T
2.TM3AI2H
531-7QD00-0AB0 1
6ES7131-6GF00-0AAI 1
CX61125数控车手轮,型号:6FX2007-1AD03,数量:1件
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General Electric GE Fanuc Monitor Board 531x179PLMAJG1 VA-5
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GE Fanuc IC697ALG230 IC697ALG230F Analog 90-70 - NEW
VERY NICE GE GENERAL ELECTRIC FANUC MOTHER BOARD MODEL
NEW GILBARCO MARCONI T19706-G2 T-19706-G2 POWER SUPPLY
TELLABS MARCONI RELTEC DCU20B DISC*S 1PTY SVC REDUNDANT CIRCUIT PACK SLISB15
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