HD22020-2
HD22020-2
HD22020-2
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。
A06B-0235-B605#S037
A06B-0267-B605#S037
A06B-0116-B704#0037
A06B-0115-B704#0037
A06B-6107-H002 --------
79010-01
A13B-0154-B001
SR2
A06B-6117-H103 --------
NE-2002-105-005
NE-2002-105-006
EE-4583-050
NE-2002-105-002
A06B-0115-B104#0037
A660-2005-T288#L20R03
A16B-2203-0910
A20B-3300-0448
A05B-2308-C307
A90L-0001-0510
A12241-50 50英尺
A05B-2502-C431
A05B-2406-C372
A20B-8101-0100
A06B-6114-H206 ----------
A90L-0001-0051#A NMB-MAT
1608KL-05W-B69
1608KL-05W-B39
A60L-0001-0290#LM50C 各1
变频器 ACS800-01-0120-3+P901 1台
制动斩波器 NBRA-675C OPTION/SP KT 1台
变频器 ACS800-04-0205-3+P901 1台
桨叶变流器?SSB DCTRANSD-060\LVRT G1.04.00*000112?????数量2
6AV6542-0CA10-0AX0 1--------
EM4-101-AA201 1
GD35PIT120C5SN 1
SGMGV-20DDA61
SGDV-8R4D21A
SGMGV-03DDA61
SGDV-1R9D21A
SGMGV-30DDA6B
SGDV-120D21A
6ES7216-2BD23-0XB8 数量1
6ES7134-4LB02-0AB0 6
三菱电机 HC-BH013-S16 数量6个
6ES7400-0HR01-4AB0 1
6ES7400-2JA00-0AA0 1
6ES7412-5HK06-0AB0 2
6ES7153-2AR03-0XA1 3
6ES7870-1AA01-0YA0 1
LXM-45Z 1
GP430-EG11 1 未税
6AG4104-0CA01-0XX5 1台
IC695PSA140 1
IC695PNS001 1
IC695CHS016 1
IC694ACC310 3
IC694ALG223 4
IC694ALG392 2
IC694MDL645 2
IC694MDL740 2
IC695CPE310 2
EM4-101-AA2 1
PS4-201-MM1 1
6SN1123-1AA00-0AA2 2---------
EP-4142A-C1 1
2711P-T12C4D8 面价 70512--------
1769-L33ER+1768-SD1 面价29606+1768-SD1无面价
1769-IBQ32 AB 3 无面价
1769-IF8C AB 1无面价
2711P-T12C4D8 面价 70512
替代型号:2711PT12W21D8S 面价305
802T-AMP 1548 30
802T-W4C 274 30
6AV2123-2GB03-0AX0 10
6AV2123-2JB03-0AX0 10
6ES7155-6AR00-0AN0 25
CJ1W-NC413 22个
CJ1W-ID261 11
CJ1W-OD261 11
150-F480NBD 面价 64862-----------
型号:A9D-30-10 线圈220V 数量:7
型号:E1N1250R/1250A/3P/NST 数量:2
a06b-1466-b123#0021 1
C98043-A7002-L1 1
C98043-A7001-L2 1
3SE5232-0HE10 2
RT5046-1AL20 , 95A, 3P, 30KW, 400V : 02 pcs
FANUC 机器人本体电池 A98L-0031-0005 4
FANUC 机器人减速机润滑脂 A98L-0040-0174#16Kg 1
FANUC 模块 A03B-0819-C154 2
120-0BH01-0AA0 2
122-1HA01-0AA0 4
036-0EF85-0EA0 1
CB-500 1个
FA-CBL200PSBH
QJ61BT11N
6ED1052-1MD00-0BA6 1
6ES7414-2XG04-0AB0 1---------
6AV6671-1CB00-0AX2 2
3VL2716-1DC33-2PD1 2
12P3866X012 30
KJ4001X1-BA3 P3378X012 2
KJ4010X1-BL1/12P3427X012 30
KJ4010X1-BM1 P3428X012 30
RM100 1
变频器ACS355-03E-07A3-4 3KW 台 1
变频器 ACS550-01-015A-4 台 1
R2E280-AE20-17 230V~50Hz 1.0A 225W 2700min-1 1
SGLFM-1Z675AC
SGLFM-1Z405AC 各一个
7MH4965-2AA01 2
PBD-23900248 2
6ES7416-2XN05-0AB0 1块--------
6AV6643-0CB01-1AX1 1----------
SGMJV-08-SE6 数量1
FDM 181 1
WILPA1949C 1
6ES7 518-4AP00-0AB0 1---------
6SL3120-2TE15-0AD0 1
6ES7135-4FB52-0AB0 数量:2
6SE7315-2AG10-0AB0 数量:1
编码器-HGX-0572896 2
F364.650AA9B 3
CJ1W-ID231 22
CJ2M-CPU33 10
RDCU-02C 1
E3T-ST11 1
SGDV-120A15A 安川 2
EE-SX770A-2M 1
EE-SX772A-2M 1
V640-HS61 1
V640-HAM11-V4 1
DRT2-MD16 1
DRT2-ID16TA 1
DRT2-0D16TA 1
Type: PSTB47060070, Order No: 1SFA894016R7000 1
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