3HAA0001-XH
3HAA0001-XH
3HAA0001-XH
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。
10-12
A02B-0303-C205数量1
RMCL55BD数量6
R4D400-AL17-05 1
ACS880-01-169A-3+D150+P944+N7518 1
22F-D4P2N103 面价 3039 1
A06B-1467-B123#0021 1
A05B-2601-C412 发那科 数量1
发那科 A02B-0321-B500 数量1套
6ES7-307-1EA00-0AA1
CARAT55-6TX-2FM
UC-8410A-LX
FX3SA-30MR-CM
PLC-CP1E-E20SDR-A
PLC-XC1-32R-E
DVP14ES00R2
西门子S7-200 SMART CPU SR20
西门子S7-200 SMART EM DE08 数字量输入模块
西门子S7-200 SMART CPU SR30
西门子S7-200 SMART EM DE16
西门子S7-200 SMART CPU SR60
西门子S7-200 SMART EM AE08
西门子S7-200 SMART EM A004
西门子S7-200 SMART EM A002
西门子S7-200 SMART CPU SR40
西门子S7-200 SMART EM AE08
西门子S7-200 SMART CPU CR4
307-1KA02-0AA0
TPC-S3700
343-1EX30-0XE0
1769-BA 605
1786-RPA 14012
3UG4651-1AW30 数量:4
EIP-508-105-Z015数量3
IOL-302-000-K006数量14
IOL-104-000-Z012数量10
EIP-302-105-Z015数量6
EIP-104-105-Z015数量6
1756-L72S 面价88900 数量1
1756-L7SP 面价11800数量1
1756-A10 面价6740数量1
1756-PA75 面价 12100数量1
1756-N2 面价310数量5
1756-IB32 面价5170数量1
1756-OB32 面价7330数量1
1756-TBCH 面价934数量2
1756-EN2T面价28600数量3
2711P-T12W22D9P 面价38700数量1
1734-AENTR 面价4350数量7
1734-EP24DC面价1360数量6
1734-IB8面价828数量32
1734-OB8面价934数量24
1734-IB8S面价3450数量20
1734-OB8S面价4010数量16
1734-TOPS面价125数量140
1768-L45S面价66800数量1
1769-ECR面价344数量1
1768-PA3面价5560数量1
1769-IQ32面价4250数量1
1769-OB32面价5210数量1
1768-ENBT面价13600数量3
GSS05-2E HBR 090C12
RH28M-2DK.3F.1R 1
HC-SFS152 1
JRTR37DS80M4 1
JRTS57DS9OM4 1
JRTS47DS71S4/B 1
FH57GDRE132S4BES 1
EXDIII-500 T5 1
DRS180M4BE30 1
DRS180S4BE20 1
GSS04-2M HBR 080C32 1
6EP3436-8SB00-0AY0 2
CCD PRO 5000 1
SGMJV-04A3A61 1
供电模块203/806 1------------
TM3AI2H 1-------------
HIEE200130R0002 1------------
ACS550-01-096A-4 2
ACS550-01-012A-4 2
6SL3210-1KE15-8AF2 带面板 1
6SL3210-1KE21-3UF1 带面板 1
6GK5204-2BB10-2AA3 1-----------
品牌:mks
型号:722A11TGA2FA-----------
CP1L-M30DT1-D 1个
FX3U-32MT 2个
80026-601-01-R 4836 1
151-3AA23-0AB0 2
A02B-0333-B802数量1-----------
MXM80A-000-000-00/DHR41 B/OMC41B-T6---------
EM0608A13-05----------------
Esay9 EA9B23230C 2P 32A数量10
6ES7138-4DE02-0AB0 1
2455RC-9082-465-L200 20
WATSND-160/160.4CBR-F 1
UC2000-30GM-IUR2-V15???P&F??2?Pc
ACS510-01-180A-4 1
958EA32A, 1
42IF35AF 1
CEAG-VE97236 6pcs
CEAG-EVG09236 6pcs
CEAG-2 2710 904 000(2710-3) 6pcs
IC693CPU350-EK数量1---------
IC693PWR321Y数量2---------
2711P-T10C22D9P 2 面价35030------
面板型号 255-0AA00-4CA1
6AV6-648-0CC11-3AX0 4------
A5E36717797 1
DPRAHIE-100A800-LS1 数量1
驱动电机 型号:ELSM4XE016K(适用于NAPSON四探针方阻测试仪) 1个
DCS4051通讯转发器3个------
8754960000 1
8754970000 1
8739140000 1
北京合康亿盛变频器HPU690/096DB1,1台-------
A06B-6270-H075#H600-----
A06B-0269-B400---------
A06B-6127-H105------
6AV2124-0MC01-0AX0--------
A06B-6240-H106---------
A06B-6110-H011--------
6ES7410-5HX08-0AB0--------
A06B-6140-H015---------
6AV643-0CB01-1AX1--------
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