LP2D0901

LP2D0901

LP2D0901

LP2D0901

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。

LBR3040   3

LBR3080   2

6ES7792-0AA00-0XA0   1个

6SL3210-5BE31-8UV0    1台

6ES7954-8LT03-0AA0      1个------------

6ES7516-3AN01-0AB0       1个-----------

6SL3055-0AA00-6AA0    4个 

6ES7517-3TP00-0AB0    1个-----------

6GK5204-2BC10-2AA3    1  

6EP3322-6SB10-0AY0    1

6EP1333-1LD00     370个

6SL3244-0BB12-1FA0      30

IC200ALG260 数量1

1747-L553数量1  91352----------

64703714B数量9

68602203数量3

64691929数量3

DSMB-01C---------------

64630199数量3

DSAB-01C---------

64637029数量3

DSCB-01C----------

64666606数量3

DSMB-02C---------------

64697811数量6

58926451数量3

NRED-16E

64522787数量9

VHP-6 3X8K

6EP1935-6ME21    1

6EP1437-3BA10     1

1769-IQ32T     4835   2

215-1AF40-0XB0     2

CSNK500M-600  1

3BSC630149R0001   1

PXUB201

090-0XX85-1DA0    2-----------

223-1PM22-0XA0   1----------

223-1PL22-0XA0   1---------

221-1BH22-0XA0   1---------

231-0HF22-0XA0   4----------

231-0HC22-0XA0   2-----------

214-1AD23-0XB8   2---------

216-2AD23-0XB8   2----------

216-2BD23-0XB0   2----------

6EP1961-2BA21   5

6EP1234-1AA00  1

XPS-AF    2个

6SL3040-1NB00-0AA0  1

A5E02822120数量1

LAM 734-061280-017 O-RING

LAM 734-061280-029 O-RING

LAM 734-061280-130 O-RING

LAM 734-061280-231 O-RING (PACK OF 10)

LAM 734-061280-265 O-RING,VITON,2-265

LAM 734-061280-278 O-RING (PACK OF 10)

LAM 734-061280-453 O-RING, VITON SER 2, 11.975 X .060

LAM 734-061716-001 GASKET, VITON

LAM 734-061978-001 O-RING, CHEMRAZ ID.029 CSD.070  SC513

LAM 734-061978-004 O-RING CHUCK UNIVERSAL

LAM 734-061978-274 O-RING, AS568A-274 CHEMRAZ

LAM 734-061978-310 O-RING

LAM 734-061978-364 O-RING MAIN ISO VALVE (AS-568A-364)

LAM 734-07356-001 O-RING, Outer Gate Outer

LAM 734-08546-001 O-RING, ARM INNER

LAM 734-090516-001 O-RING

LAM 734-090743-001 O-RING (PACK OF 5)

LAM 734-090743-001 O-RING (PACK OF 5)

LAM 734-090788-001 O-RING

LAM 734-091193-001 O RING VITON

LAM 734-091228-001 O RING 9 1/4 ID X 3/32

LAM 734-091228-200 O-RING,KALREZ

LAM 734-092040-003 O-RING, GAS INNER

LAM 734-092069-001 O-RING.675 IDX3/32 C/S

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LAM 734-092559-016 O-RING, FLUOROSi ID.614 CSD.070  (PACK of 10)

LAM 734-092560-167 O-RING (PACK OF 10)

LAM 734-092561-216 O-RING, 1.109ID X.139 C/S (PACK OF 10)

LAM 734-092561-229 3-PIN O-RING

LAM 734-092561-264 O-RING,INNER DOOR WIN SEAL

LAM 734-094437-001 O-RING, 12.505 ID X .210 CS VITON

LAM 734-095412-001 O-RING

LAM 734-09909-001 O-RING, 4"DI FOR LAM

LAM 734-09910-001 O-RING 3" DIA FOR LAM

LAM 734-706000-001 O-RING

LAM 734-7369-1 RING, QUAD

LAM 734-9869-1 O-RING

LAM 737-S009021-008-00 RING, QUAD X RING

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LAM 739-098594-001 O-RING, PENDULUM

LAM 739-098594-001 O-RING, PENDULUM

LAM 742-060786-006 GKST, CONFLAT, 8" ELE NKL PLT

LAM 742-093181-003 GSKT,RF,BECU O-RING

LAM 742-093181-003 GSKT,RF,BECU O-RING

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LAM 746-008545-001 BEARING BALL

LAM 746-06219-001 BEARING

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LAM 746-094249-001 BEARING, 10MM

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LAM 749-006596-001 COLLAR ARM SHAFT PRESISION N/C (PACK OF 10)

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LAM 749-L007984-001 COUPLING, ENCORDER

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LAM 751-S032271-001 CLAMP ALUMITE

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LAM 752-004083-001 SHAFT, PERECISION .125X1.875

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LAM 754-007791-001 SPRING,GAS

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LAM 754-092082-002 GUIDE BEARING & SPR ASSY

LAM 754-092082-002 GUIDE BEARING & SPR ASSY

LAM 756-007126-007 SCREW ARM CYLINDER SHOULDER (PACK OF 10)

LAM 760-021194-00 ASSY CUSTOM DEMAG LENS II LEFT

LAM 760-042076-01 ASSY CUSTOM DEMAG LENS II RIGHT

LAM 764-4608 BALL JOINT

LAM 765-007787-001 SPROCKET DRIVE 2.873PD.500B

LAM 765-008016-004 HUB MOUNTING

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LAM 766-009543-002 VALVE,CHILLER,LINE,SS

LAM 766-009593-002 REGULATOR,PRESSURE,TEFLON

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LAM 766-090688-00 TIMER,PNEUMATIC,7.0

LAM 766-090814-001 ACTUATOR ASSY

LAM 766-090815-001 ACTUATOR, ASSY N.O. VERIFLOW

LAM 766-090815-001 ACTUATOR, ASSY N.O. VERIFLOW

LAM 766-090816-001 KIT, REBUILD VERIFLOW VALVE MANUAL,ADV

LAM 766-092079-601 GT MECH DRY BRG COMPL.

LAM 766-901055-001 VALVE,TWO,3 WAY VALVE,SMC

LAM 766-9866-40 KIT BELLOWS ASSY

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LAM 766-L009866-080 BELLOWS, P C ISO

LAM 766-S006420-012-00 VALVE, SOLENOID AIR OPE SW10 20

LAM 768-091910-001 ATMSWITCH, VACUUM ATMOSPHERE,NON-ADJ

LAM 768-093959-001 SWITCH-PRESSURE 75 TORR

LAM 768-093959-200 SWITCH, PRESSURE, VACUUM,125 TORR,PSH3,200

LAM 768-093959-200 SWITCH, PRESSURE, VACUUM,125 TORR,PSH3,200

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LAM 768-900619-100 XDCR,MMVCR,5RA,HOR,W DISPLAY

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LAM 770-007575-002 CYLINDER,1/2 BORE NICKET PLT

LAM 770-550281-001 AUTODOOR CLAMP CYLINDER

LAM 771-004104-001 TUBE, CONNECTION

LAM 771-04104-001 CONVECTRON TUBE

LAM 772-008458-001 PLUG MANIFOLD PORT LAM 4500

LAM 772-009188-001 FILTER 1/ NPT

LAM 772-090397-001 REGULATOR COMPACTS 1

LAM 772-091421-001 HOUSING, FILTER

LAM 772-092806-100 RGLTR SQ60,0-30 PSIG OUT

LAM 772-093113-001 REGULATOR MICRO SST VCR MM RA10

LAM 772-094236-010 WLDMT,SET PRESS,RGLTR,10 PSI

LAM 772-470656-001 RGLTR,3-PORT & GAUGE,10Ra

LAM 775-009935-001 ELEMENT, H2O FILTER

LAM 775-009973-001 FILTER ELEMENT HI-TEMP 4420

LAM 775-009974-001 FILTER ELEMENT DI HI TEMP

LAM 775-100487-001 FLTR,VNT CRMC

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LAM 778-091827-502 CONT,TEMP,W/HALBD,RTD/CH5

LAM 780-680082-00 RETROFIT KIT, TOP PLATE, MARK 2

LAM 780-680130-00 RETROFIT KIT, TOP PLATE, MARK 2, RIGHT

LAM 790-007785-003 BRAKE, GAP, ELECTRIC

LAM 790-008339-003 SNUBBER SHAFT STROKE

LAM 790-013004-195 TIMING BELT

LAM 790-092081-001 CRANKBOLT

LAM 790-095243-001 FLAG, DOOR, UP/DOWN

LAM 790-095245-001 FLANGE, SENSOR

LAM 790-097959-001 VALVE ASSY

LAM 790-098558-001 LINER,EXTNSN,QTZ

LAM 790-098560-003 HEATER,GAS,LN,HTD,MWAUE

LAM 790-130044-195 BELT, TIMING

LAM 790-250171-001 BELLOWS LIFT PINS 9500

LAM 795-009619-001 FILTER,OPTICAL,480NM

LAM 795-090066-001 FILTER, ENDPOINT 77

LAM 795-090330-001 LENS,END POINT DETEC

LAM 795-091097-001 EBOW,FIBER OPTIC

LAM 795-093551-006 CA,FBR OPTIC,.13"D x 16.50"LG

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LAM 796-000233-003 SEAL. CENT. RING ASSY, NW50

LAM 796-000233-004 SEAL CENTERING RING NW 10

LAM 796-000233-005 SEAL NW 16 CENTERING RING

LAM 796-000719-001 GASKET, VCR, UNPLATED NICKLE

LAM 796-001233-001 CLAMP, NW25,AL

LAM 796-001582-001 HOSE, CORR, METAL KF50

LAM 796-002672-001 GASKET KIT

LAM 796-002673-001 TIP, STEM KEL-F,GASKET,INSERT

LAM 796-002673-002 INSERT

LAM 796-006759-001 GASKET NICKEL W/RETAINER 1/4"

LAM 796-007432-102 GEN VAC NO-SWITCH

LAM 796-008354-008 SCREW, SOC HD,VNTD, 6-32 X 3/4 (PACK OF 10)

LAM 796-008792-012 SCREW, VENTED 10-32 X 3/4 (PACK OF 10)

LAM 796-008976-002 SEAL, CENTERING RING NW80

LAM 796-008976-003 CENTERING SEAL ASSY

LAM 796-008976-005 CENTERING RING

LAM 796-008976-006 SEAL, CTRG/SEAL ASSY, NW 250

LAM 796-009209-010 SCREW (PACK OF 10)

LAM 796-009209-010 SCREW (PACK OF 10)

LAM 796-009240-016 BENT SCREW SHCSSVNTCLN3/8-16?1"

LAM 796-009361-001 ASSY, HOSE, MTL.NW80, 20"L

LAM 796-009363-003 FLANGE,BLANK-OFF

LAM 796-009364-001 ASSY, HOSE MTL NW80

LAM 796-009365-001 ASSY, HOSE, MTL, NW40

LAM 796-025605-001 DILUTION SYSTEM, HYDROGEN

LAM 796-090063-001 SEAL CNTRN6 RN6NW 10/NW16

LAM 796-090534-001 VALVE, 1/4 BTT WLD, NRMLY CLSD

LAM 796-090548-001 COUPLING CLOSE 1/4 VCR F-F

LAM 796-090716-001 ASSY, HOSE MTL NW100

LAM 796-090768-001 VALVE 1/2 BTT WLD NRMLY CLSD

LAM 796-090807-001 GATE VALVE ASSY

LAM 796-091814-002 KIT, FUJIKIN ACTUATOR NO

LAM 796-091815-001 DIAPHRAGM, FUJIKIN VSEAL9600

LAM 796-091902-102 VLV, GT, CNTRL 200MM FIG

LAM 796-091925-002 VAT VALVE ASSY

LAM 796-091975-003 VALVE,PTX TURBO ISO VALVE

LAM 796-092372-001 KIT, O-RING REPLACEMENT

LAM 796-092798-001 VLV,PNEU

LAM 796-093055-001 SEAL KIT BONNET

LAM 796-093088-004 CONTROLLER,ADAPT PRESSURE VLV

LAM 796-094065-250 RING, CENTERING CHEMRAZ VATHSG

LAM 796-095450-002 V,1/4 FACE SEAL,M-IN,M-OUT

LAM 796-095768-001 SHLD, SPLINTER, 1K TURBO PMP

LAM 796-097155-001 O-RING,TOP PLATE

LAM 796-098649-001 LKG BALL SET,VAT 64 200MM

LAM 796-099248-001 ELB,UN,45 DEG,11Ra,SST,1/4

LAM 796-220744-001 GASKET

LAM 796-360004-001 ACTR VALVE COMPACT VAC

LAM 796-441317-003 VLV,SER65,DN250,CHEMRAZ W/FSI

LAM 796-L000716-001-00 VALVE, CHECK

LAM 796-S002925-013-00 VALVE, SOLENOID GATE VALVE SW2000