FCM100E P0972ZA
FCM100E P0972ZA
FCM100E P0972ZA
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。
YASKAWA ELECTRIC SGMG-09ASAL-MY1 SGMG09ASALMY1
YASKAWA ELECTRIC JANCD-SV02C JANCDSV02C
YASKAWA ELECTRIC JANCD-SV02B JANCDSV02B
YASKAWA ELECTRIC DDSCR-GL60H3 DDSCRGL60H3
YASKAWA ELECTRIC CP-9200SH/CPU CP9200SHCPU
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YASKAWA ELECTRIC CIMR-G5M-5037 CIMRG5M5037
YASKAWA ELECTRIC CIMR-G5A4011 CIMRG5A4011
YASKAWA ELECTRIC CIMR-F7U4030 CIMRF7U4030
YAMATAKE 82114805-501 82114805501
WINSMITH 4CV 4CV
WINDSOR MPMAE2S4 MPMAE2S4
ULTRA SONIC SEAL A20 A20
TOTAL CONTROL PRODUCTS GQPI-31200-C2P GQPI31200C2P
TOSHIBA VT130G3U435K VT130G3U435K
TEXAS INSTRUMENTS PLC 565-2820 5652820
TEXAS INSTRUMENTS PLC 530-1102 5301102
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ORMEC MAC-B110E/K1A MACB110EK1A
OMRON ITNCEIX01DRM ITNCEIX01DRM
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逆变器冷却风机/D2D160-BE02-11 230/400V 700W 3
电磁阀线圈8个德国REXROTH力士乐;型号:R901267189 45620 630022 220DC 42W 10
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ACS880-304-0820A-7+A018+C188 1
931N-T221数量1 面价1954
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D2D160-BE02-11 230/400V 700W 数量:3
2093-AC05-MP5 1 面16596
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MMF-12F24DS-CN1 4x
安川H1000控制板 ETC740560-S9111 1块
1606-XLP15E 1 面价 459
343-1GX31-0XE0 2个
6EP3436-8SB00-0AY0 1
6EP1961-3BA01 1
6AV6646-1BA15-0AA0 2
W2D225-EB14-14 400v 2
ABL1RPM12083 5个
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W-2310003 2
3BHB006872P0002 4
3BHL001089P0001 2
SW-180107 8
SW-190148 16
3BHB040253R000 2
3BHB040253R0001
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1SDA038302R1 3个
1SDA038292R1 2个
ZBDR-01C 3个
880编码器卡_FEN-31 PCS 1
380编码器卡_BTAC-02 PCS 1
6ES7416-2XK01-0AB0 2
1746-NI4 16498 3