C362 NM16D
C362 NM16D
C362 NM16D
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。
A165E-LS-24D-01 1个
E2E-S05S12-WC-C1 2M 2个
A16L-TGM-24D-1 1个
3G3MX2-A4004-ZV1? 20台
8EI2X2HWD10.0700-1 1
NX1P2-9B40DT1
NX-PF0630
NX-TS2201
NX-AD2204
NX-ID5442
NX-OD5256
23P1H-AR0A4DA012AW 各一
EVS9325-ES 1-------
HD9FS- FAN-400A-400 (汇川变频器配套) 2
WDP3-014.0801 1
W-X00513A 1
控制系统电液伺服阀G761-3033B
伺服阀:-559A-S15FOFA4VBLDN12
控制系统电液伺服阀SF21A
压力开关SZ010B-C .005-1MPa
压力开关SZ-210P-C .5~20.5MPa
硅表接口板Z009.636A/02
电动执行机构SQ07.2
电动执行机构KZM25/QF125
电动执行机构KZ25
执行机构电路板Z009-636A/02
压力开关(炉膛压力)H100-521 -2490~2490Pa
压力开关SZ-01BSV-C2.7~100KPa
火灾报警输入输出模块GST-LD-8300
火灾报警输入输出模块GST-LD-8301
MCT-100K 1
CJ1W-AD081-V1 1
------------
6SL3320-1TE32-6AA3
6SL3320-1TE35-0AA3
ACS880-01-293A-3
MOOG伺服阀G761-3033B
CINT-01C
DSSB-01C
PSTX370-600-70
6GK7443-1EX30-0XE0
IC695CPE310
6ES7512-1DK01-0AB0
AT-11M024
6AV6 640-0CA11-0AX0
A06B-1512-B200
6SL3120-2TE21-0AD0
1794-IE8H
EATON ROTARY SWITCH C362 NM16D
EATON ROTARY SWITCH # R1003 NSN: 5930-00-806-3991
Eaton Robertshaw Infinite Switch 66004-AF39
Eaton Ringless Meter Base Cover F241!L
Eaton Relief Valve 110603-350/29 3500PSI
EATON RELAY W/TEST BUTTON D3PR2A SER.A2 * IN BOX*
Eaton Relay D96410ACZ2 (480V)
Eaton Red Indicator Light E34T120LRP06
EATON RED INDICATING PANEL MOUNT PUSH SWITCH 851-24966-002 , 28 VDC / 200 VAC
Eaton RCBO EAD20BH30C 20a 30ma 6ka
eaton rcbo 40 Amp Type B
Eaton Rcbo 32a Emch132r30c
Eaton RCBO 32a B 30ma 6ka ref:ERB6/32/1/B/003 (same as EAD32BH30C)
eaton rcbo 32 Amp Type B
Eaton RCBO 20a 30ma B EAD20BH30
eaton rcbo 16 Amp Type B
Eaton RCBO 16 Amp 30mA Type B 16A Memshield 3 B16 EMBH116R30
eaton rcbo 10 Amp Type B
Eaton R5A3040U UL508 AFrame 3Pole 40AMP NonFusible Rotary Disconnect
Eaton R5A3040U Non-Fusible Rotary Disconnect Switch
EATON R2-6, Hose Assembly, hyd, 3/8 ID x 64 In
EATON R-2522 RCVR HF BR-2522
Eaton quick coupler 1" with shut off valve M/F
EATON PXF-40/4/003-A FI-Schutzschalter 40A/30mA/4-pol
EATON PXF-40/2/003-A Fehlerstromschutzschalter 40A 30mA 2-polig
EATON PXF-40/2/003-A Fehlerstromschutzschalter 40A 30mA 2-polig
EATON PXF-25/2/003-A FI-Schutzschalter 25A/30mA/2-pol
EATON PXES6P Power Expert Ethernet Switch
EATON PW3105 700 POWERWARE POWER SUPPLY 120V-AC 700VA 10A B274434
Eaton Push Pull Emergency Stop Button 10250ED1080
Eaton Push Button -- 10HA1C5 -- (Lot of 2)
EATON PT24008BK-100 PLASTIC TUBING
EATON PROXIMITY SWITCH E57LAL18T110S5
Eaton Premera - E325 - 45A Cooker Control Unit with 13A Socket Outlet
EATON Powerware LVDCS-A00 LOW VOLTAGE DISCONNECT CTRL Working Pull
Eaton Powermaster G221SNK Safety Switch 30Amp 3Pole 240Volt
Eaton Power Xpert Gateway PXG400 PXG 400 Power monitoring unit
Eaton Power feeder Module 24vdc 3A EU5C-SWD-PF1-1
EATON Positionsschalter LS-S11S/S NOV
Eaton PKZMO-25 Motorschutzschalter 20-25A
EATON PKZM0-4 Motorschutzschalter 2,5-4 A XTPR004BC1
Eaton PKZM0-4 Motorschutzschalter 2,5-4 A 072737
Eaton PKZM0-20 Motorschutzschalter 16-20A Art. 046988
EATON PKZM0-12 Motorschutzschalter XTPR012BC1NL
Eaton PKZM0-1 Motorschutzschalter 0,63-1,0A MSAA 072734
Eaton PKZM0-0,63 Motorschutzschalter 0,4-0,63A 072733
Eaton PKZM0-0,4 Motorschutzschalter 0,25-0,4A 072732
Eaton PKZM0-0,25 Motorschutzschalter 0,16- 0,25A 072731
Eaton PKZM0-0,16 Motorschutzschalter 0,1-0,16A 072730