DSQC208A
DSQC208A
DSQC208A
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。
9-29
FDCO-02 1
6SN1123-1AA00-0AA0 2-------
3UF7941-0AA00-0
HMS02.1N-W0054-A-07-NNNN 1--------
HMS01.1N-W0020-A-07-NNNN -------
6GK5204-2BB10-2AA3 10 -------
ACS-AP-W 4
RDCO-04C 4
BCU-02 4
BCU-12 4
AI820 3
AO810 3
6AV2124-0UC02-0AX0 TP1900 Comfort 1块
6SE7031-8EF60 1---------
A02B-0319-D514#M 1
1762-IF4数量5 3378
6ES7323-1BH01-0AA0 数量:2
6AV7240-0BC06-0HA0 数量:1
6ES7626-1SB04-0AC0 数量:1
西门子 储存卡6FC5250-7CY30-4AH0 1张-------
西门子6FC5357-0BB15-0AA0 1块-------
6AV6 648-0BC11-3AX0 1-------
6ES7 331-7KB01-0AB0 1
6AV6643-0AA01-1AX0---------
6AV6 647-0DA11-3AX0 ------
6AV6545-0DA10-0AX0 ------
6AV7861-2TB10-1AA0 ------
6ED1056-1DA00-0BA0
6ED1056-7DA00-0BA0
6EP1332-1SH12 2.5A
6AU1445-0AA00-0AA0 --------
6EP1437-2BA10 40A 380V/24V
6EP3311-6SB00-0AY0
6ES5451-2BA11
6ES7 021-3TP50
6ES7 131-1BL01-0XB0
6ES7 132-4HB00-0AB0
6ES7132-4HB10-0AB0
6ES7131-4BF50-0AA0
6ES7 138-4CF42-0AB0
6ES7 141-3BH00-0XA0
6ES7 142-3BF00-0XA0
6ES7 274-1XA30-0XA0
6ES7 274-1XF30-0XA0
6ES7 212-1HE40-0XB0
6ES7 314-6CF00-0AB0
6ES7 323-1BL00-9AM0
6ES7 340-1AH02-0AE0
6ES7 392-1AM00-0AA1
6ES7 460-0AA01-0AB0
6ES7 461-0AA01-0AA0
6ES7 522-1BH10-0AB0
6ES7 901-3BF20-0XA0
6ES7 901-3CB30-0XA0
6ES7 953-8LJ10-0AA0
952-1KP00-0AA0
6ES7-134-4GB00-0AB0
6ES7138-4CA50-0AB0
6ES7-138-4DF01-0AB0
6ES7-138-4FB03-0AB0
6ES7138-4FR00-0AA0
6ES7141-4FB00-0AA0
6ES7-151-3BA23-0AB0
6ES7151-7AA13-0AB0
6ES7193-4CB30-0AA0
6ES7305-1BA80-0AA0
6ES7314-6CH04-0AB0
6ES7317-2AJ10-0AB0
6ES7-392-AM00-0AA0
6ES7953-8LG30-0AA0
2GCA281348A0030 1
A20B-8200-0846 2件(0847也可以)
YT204001-KF
YT204001-AD/2 YXU-168A
YT204001-AA/1 YPM102A
YT204001-CE YPG109A YYT105CE
YT204001-CN/4
YT204001-HC
YT204001-JD/3
YT204001-BP
YT204001-FSI1
YT204001-FK/1
YT204001-FL/1
YT204001-OK
YT204001-BN
YT204001-JL
YT204001-JB
YT204001-JD
YT204001-FL/1
YT204001-DT
YT204001-AA
YT204001-CB/2
YT204001-FK
YT204001-FB
YT204001-FS
YT204001-JH
YT204001-BG
YT204001-BM
YT204001-DL
YT204001-FP
YT204001-DM/1
YT204001-FD
YT204001-BL/2
YT204001-FY/1
YT204001-AN
YT204001-JJ/1
YT204001-EH
YT204001-DY/2
YT204001-DF
YT204001-CP
YT204001-CN/2
YT204001-KE
YT204001-JD/1
YT204001-AM
YT204001-HS
YT204001-0Y/2
YT204001-HE
YT204001-JF
YT204001-CK/1
YT204001-JH/1
YT213001-BA/1
YT213001-BC/2
YT213001-AC/2
YT213001-BC
YT213001-AB
YT213001-AA
YT213001-BA
YT213001-BC/1
YT213001-BB
YT213001-AC/4
YT213001-AA/3
YT213001-AB/2
YT213001-AB/6
CUTLER HAMMER KD3400F USPP KD3400F
Cutler Hammer KD3400F 400 Amp 600 V 3 Pole Circuit Breaker
Cutler Hammer KD3400F 3POLE 600V KT3200T 200AMP TRIP
Cutler Hammer KD3400F 3pole 400amp breaker trip units available
Cutler Hammer KD3400Circuit Breaker Type KD 35K 3 pole 400 amp 600 volt
Cutler Hammer KD3400Circuit Breaker Type KD 35K 3 pole 400 amp 600 volt
CUTLER HAMMER KD3400 USPP KD3400
Cutler Hammer KD3400 KD 3400 Circuit Breaker
Cutler Hammer KD3350 Circuit Breaker Type KD 35K 3 pole 350 amp 600 volt
Cutler Hammer KD3350 Circuit Breaker Type KD 35K 3 pole 350 amp 600 volt
Cutler Hammer KD3300 Circuit Breaker Type KD 35K 3 pole 300 amp 600 volt
Cutler Hammer KD3300 Circuit Breaker Type KD 35K 3 pole 300 amp 600 volt
Cutler Hammer KD3250 KD 3250 Circuit Breaker
Cutler Hammer KD3250 Circuit Breaker Type KD 35K 3 pole 250 amp 600 volt
Cutler Hammer KD3250 Circuit Breaker Type KD 35K 3 pole 250 amp 600 volt
Cutler Hammer KD3225WA01S29 225amp 3pole aux sw 1A1B LH MT S/T 110-240VAC
Cutler Hammer KD3225 Circuit Breaker Type KD 35K 3 pole 225 amp 600 volt
Cutler Hammer KD3225 Circuit Breaker Type KD 35K 3 pole 225 amp 600 volt
Cutler Hammer KD3200 Circuit Breaker Type KD 35K 3 pole 200 amp 600 volt
Cutler Hammer KD3200 Circuit Breaker Type KD 35K 3 pole 200 amp 600 volt
Cutler Hammer KD315OWA01529 series C 150amp 3pole A1X3PK 1A-1B aux switch
CUTLER HAMMER KD2400F USPP KD2400F
CUTLER HAMMER KD2300 INDUSTRIAL CIRCUIT BREAKER NIB
CUTLER HAMMER KD KD2400F 3 POLE 600V 400 TRIP BREAKER 100% POSITIVE FB
Cutler Hammer KD 3400 F 400 Amp Circuit Breaker 35K
CUTLER HAMMER KD 3400 F 3 POLE 400A 600V CIR BREAKER
Cutler Hammer KB3250F 3 pole KB frame only trip unit available
CUTLER HAMMER KB2250F NSFP KB2250F
CUTLER HAMMER KB-2200 NSFP KB2200
CUTLER HAMMER K15-001126-1101 NSFP K150011261101
CUTLER HAMMER K13-000034-0202 NSFP K130000340202
CUTLER HAMMER K13-000034-0201 USPP K130000340201
CUTLER HAMMER K13-000034-0107 NSFP K130000340107
CUTLER HAMMER JT3250T USPP JT3250T
CUTLER HAMMER JT3250T TRIP UINIT CHEAP CIRCUIT BREAKER CH C-H C/H
CUTLER HAMMER JT3225T USPP JT3225T
Cutler Hammer JT3225T TRIP UNIT 225 AMP 3 POLE JD T/M
CUTLER HAMMER JT3225T NSFP JT3225T
Cutler Hammer JT3225T Adjustasble Circuit Breaker Trip Unit 3P 225A 600V
Cutler Hammer JT3225T 225amp 3pole trip unit
CUTLER HAMMER JT3200T USPP JT3200T
CUTLER HAMMER JT3200T NSFP JT3200T
Cutler Hammer JT3200T circuit breaker trip unit JD3250F
CUTLER HAMMER JT3175T USPP JT3175T
CUTLER HAMMER JT3150T USPP JT3150T
CUTLER HAMMER JT3150T NSFP JT3150T
CUTLER HAMMER JT3125T USPP JT3125T
CUTLER HAMMER JT3125T NSFP JT3125T
CUTLER HAMMER JT2200FA NSFP JT2200FA
CUTLER HAMMER JS360225A CIRCUIT BREAKER
CUTLER HAMMER JS360225A CIRCUIT BREAKER
CUTLER HAMMER JHMVD06B NSFP JHMVD06B
CUTLER HAMMER JGE4100FAG CIRCUIT BREAKER 4 POLE 100 AMP
Cutler Hammer JGE3150FAG Circuit breaker 690Volt 150Amp 3 phase in box
CUTLER HAMMER JGE2250NN NSFP JGE2250NN