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6ES7 326-1RF00-0AB0
- 更新时间:2025-02-15
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6ES7 326-1RF00-0AB0
6ES7 326-1RF00-0AB0
6ES7 326-1RF00-0AB0
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。
FX3u-128M 1个
D4NS-1AF 14
PP2000D170-N01
118.195.024L
NCN40+U1+N0-V1
XS305B-E 1
25500082 1
EE-SPY412 14个
德国balluff,BLG-1-015-210-070-PV01-SX
德国balluff,BES 516-300-S295/1.225-S4
JZSP-C7P10E-10-E
JEPMC-W6002-A5-E
JUSP-TA26P-2-E
2711P-T12W21D8S 1
1784-U2DHP 1 面价31866
20-750-C6-C770D740 面价 76953 1个
ABB MS497-75 数量1
6SE7035-1EK60 1
6SL3300-1AE32-5BA0 2
6SE7032-7EB87-2DA1-Z 4-----------
6SE7031-8EF60-Z 1------------
6SE7033-7EG60-Z/Z=G43+G91+M20 1-------------
6SE7032-7ES87-2DC0 2----------------
6SL3352-1AE41-0FA1 1
6SE7041-3TL84-1JC0 1--------------
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6SE7090-0XX84-0AB0 8
6SE7038-6EK84-1JC1 5--------------
6SL3210-1SE31-1UA0 1
6SE7031-6EB87-2DA0 1--------------
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6SL3055-0AA00-3AA1 3
6SL3055-0AA00-4CA5 3
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6SE7028-0ES87-2DA1 1------------
6SL3055-0AA00-5CA2 5
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6SL3352-7AE32-6AA1 1
6EP1337-3BA00 1
6SL3054-0EH00-1BA0 2
6ES7972-0BA41-0XA0 4
6SY7000-0AC80 4-----------
6SE7037-0EK60 1-------------
6EP1334-3BA10 5
6ES7 214-1AG40-0XB0 12
IC200ACC201 4
IC200ALG263 4
IC200ALG320 1
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IC200ALG430 2
IC200ALG620 5
IC200CBL002 3
IC200CBL601 6
IC200CBL602 1
IC200ETM001 1
IC200MDL742 3
IC693ACC310 23
IC693BEM331 1
IC693CHS392 11
IC693CHS397 2
IC693MDL752 11
IC693MDL754 5
IC694MDL634 2
IC694MDL655 4
IC694MDL732 1
IC694MDL740 1
IC694MDL754 1
IC694TBB032 15
IC695ALG616 3
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IC695LRE001 3
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IC697PWR710 1
IC698ACC735 13
IC647IFPLRNUNLMTM-51 2
IC647IFSTDV00900M-51 1
IC647IFSTRN00900M-51 1
IC647TRT915-81 1
6ES7321-1CH00-0AA0 2
6SL3000-0CH41-6AA0 1
6SL3000-0KH14-0AA0 20
6SL3054-0EJ01-1BA0 3
6SL3352-1AG35-8CA1 1
6SL3352-1AG35-8EA1 1
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6SL3352-1AG41-0FA1 2
6SL3360-8AA00-0AA1 24
6SL3360-8AA00-0AA5 3
A5E00234206 2
A5E00234283 2
SGM7J-01AFA61
SGD7S-R90A10A
JZSP-C7M10G-10-E 各1
6ES7656-6CN30-1BF0 3
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6ES7155-6AU01-0CN0 34
6ES7197-1LA12-0XA0 24
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6ES7660-7CA28-3BA3 1
6ES7660-7CA28-3BA3 6
6ES7658-2XA00-0XB0 6
6ES7653-2BA00-0XB5 2
6ES7652-7BX58-2YB0 1
6ES7658-2EB00-2YB0 1
6AV2123-2MB03-0AX0 6
A02B-0303-C072 数量1
6LS3255-0AA00-4JA2 1
6ESL313-5BG04-0AB0 1
6ES7332-5HB01-0AB0 1
6SL3210-1KE11-8UB1 1
6AV2181-8XP00-0AX0 4
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