描述
电动机运行不正常故障还有振动和噪声问题,振动通常是由于电动机的脉动转矩及机械系统的共振引起的,特别是当脉动转矩与机械共振点恰好一致时更为严重。噪声通常分为变频器噪声和电动机噪声,对于电动机噪声,不同的安装场所应采取不同的处理措施,变频器在调试过程中,在保证控制精度的前提下,应尽量减小脉冲转矩成分,并应注意确认机械共振点,利用变频器的频率屏蔽功能,使这些共振点排除在运行范围之外。如果是电动机故障,按下列步骤顺序检查。
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主营:世界知名品牌的PLC、DCS系统备件模块
①Allen-Bradley(美国AB)系列产品》
②Schneider(施耐德电气)系列产品》
③General electric(通用电气)系列产品》
④Westinghouse(美国西屋)系列产品》
⑤SIEMENS(西门子系列产品)》
⑥销售ABB Robots.FANUC Robots、YASKAWA Robots、KUKA Robots、Mitsubishi Robots、OTC Robots、PanasonicRobots、MOTOMAN Robots。
⑦estinghouse(西屋):OVATION系统、WDPF系统、MAX1000系统备件。
⑧Invensys Foxboro(福克斯波罗):I/A Series系统,FBM(现场输入/输出模块)
顺序控制、梯形逻辑控制、事故追忆处理、数模转换、输入/输出信号处理、数
据通信及处理等。Invensys Triconex:冗余容错控制系统、基于三重模件冗余(TMR)
结构的zui现代化的容错控制器。
⑨Siemens(西门子):Siemens MOORE,Siemens Simatic C1,Siemens数控系统等。
⑩Bosch Rexroth(博世力士乐):Indramat,I/O模块,PLC控制器,驱动模块等。
◆Motorola(摩托罗拉):MVME 162、MVME 167、MVME1772、MVME177等系列。
Foxboro I/A Series CP60 Control Processor P0961FR
Foxboro I/A Series Gateway Processor P0961BD GW30
Foxboro I/A Series P0930DH 20.1″LCD Monitor PO930DH
Foxboro I/A Series Mass Flowmeter System
CFS10-20CPCGZ
FOXBORO I/A SERIES DUAL NODE BUS EXTENDER P0970EJ-
Foxboro I/A Series Interface Module CM400YH FBM 07 NEW
Foxboro I/A Series Interface Module P0400DA FBM 1 NEW
Foxboro I/A Series Interface Module P0950BM FBM 43 NEW
Foxboro FBM1 I/A Series Input Module P0400DA
Foxboro CFT10 I/A Series Mass Flow Transmitter
FOXBORO 870ITPH-AYFNZ-7 I/A SERIES TRANSMITTER pH/ORP
Foxboro I/A Series Electronic Pressure Transmitter NR
1-1/2″FOXBORO I/A Series Vortex Flowmeter 83F S29#2
Foxboro I/A Series Communications Processor PO400VP
Foxboro I/A Series Magnetic Flow Transmitter Mod IMT20
Foxboro I/A SERIES P0903ZE NEW IN SEALED BOX S63
Foxboro 83F-D06K2SSRJZ-D Vortex Flow Meter I/A Series
FOXBORO IMT20 MAGNETIC FLOW TRANSMITTER I/A SERIES
FOXBORO I/A Series Vortex Flowmeter 83F S35
FOXBORO I A SERIES 83 VORTEX FLOWMETER
FOXBORO I/A SERIES MAGNETIC TRANSMITTER,IMT20-SA10FGZ
FOXBORO IMT25 I/A Series MAGNETIC FLOW TRANSMITTER
LOT 6 FOXBORO I/A SERIES PDU POWER UNITS P0916GZ CABLES
New Foxboro FPS400-24 I/A Series 24VDC 6 Output Power S
FOXBORO I/A SERIES DM400YR 120Vac Input/Output S63
FOXBORO I/A SERIES P0400VE Fieldbus Isolator S63
Foxboro Applications Processor 20 I/A Series P0400VT
Foxboro I/A Series Pressure Transmitter
2″Foxboro I/A Series Vortex Flowmeter Model 83 W S29
Foxboro I/A Series Cable P0800DB rev R
FOXBORO 83-W-T02S1SSRJA-B I/A SERIES VORTEX FLOWMETER
FOXBORO I/A SERIES PH/ORP TRANSMITTER 870 IT
Foxboro IMT25 I/A Series Magnetic Flow Transmitter S63
UNUSED FOXBORO I/A SERIES IND.POWER MODULE 2,P0903ZL
Foxboro I/A series FieldBus Isolator P0903ZE Rev 0A
FOXBORO I/A SERIES MAGNETIC FLOW TRANSMITTER
Foxboro Temperature Transmitter RTT20-I1BNQCA-D3
I/A Series
New Foxboro I/A Series 8’Video Cable Assembly P0971FB
FOXBORO I/A SERIES LOWER P10 EXTENSION CABLE,P0800DV
Foxboro CM902WL I/A Series Power Module 2-Rev.B