[信息与通信]变频器的技术培训.ppt

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1、March 28,2000,For Internal Use Only,Rockwell Automation 传动产品介绍 2007年01月22日,王卫锋DST Application EngineerMobile:133 1923 2311E-mail:,主 题,变频器产品家族,PowerFlex400系列产品介绍,PowerFlex700系列产品介绍,PowerFlex700 DeviceNet 通讯介绍,实验&变频器维护及故障排除,Questions,变频器产品家族,AC Drives 交流变频器0.5 to 10,000 HP208-7200 Volts160 Smart Speed

2、 Control1305 Microdrive1336PLUSII1336IMPACT1336FORCEPowerFlex 4PowerFlex4MPowerFlex40/40PPowerFlex400/400PPowerFlex70PowerFlex700/700HPowerFlex700SPowerflex7000,DC Drives 直流调速器0.25 to 2,000 HP90-700 Volts DC136513971395FLEXPAK3000WEBPAK3000,NEW,NEW,变频器产品家族,PowerFlex 400/400P,PowerFlex 40/40P,PowerFl

3、ex 4,NEW,250,NEW,变频器产品家族,特性/功能,功率范围(KW 380V),3.7,7.5,15,37,132,860,PowerFlex 700S,PowerFlex 700L,PowerFlex 700,PowerFlex 70,PowerFlex 700H,560,800,变频器产品家族,PowerFlex 700S,特性/功能,功率范围(KW 690V),45,160,PowerFlex 700,1100,132,PowerFlex 700L,PowerFlex 700H,800,1500,PowerFlex400,功率范围广 0.2KW250KW按变转矩标定LCD 液晶

4、操作面板针对HVAC的应用内置 RS485 通讯口,集成断路器,接触器,旁路控制回路.NEMA 1/IP20 壁挂式成套柜,最优化的风机水泵专用变频器,标准变频产品,成套式变频产品,PowerFlex400,PowerFlex400控制接口,(7)数字输入(24V sink/source)(3)Semi-programmable半可编程两线/三线控制,硬接线使能,freeze/fire protection(4)Fully programmable可编程预置速度,就地控制,消防强制频率功能,etc.(2)两个C型继电器输出(2)Analog outputs模拟量输出0-10V or 4-20m

5、A(selectable)(2)Analog inputs模拟量输入(电流/电压)硬件设置(1)隔离-10 to 10V or 4-20mA(跳线)(1)非隔离0-10V or 4-20mA(跳线)(1)Optocoupler output光电隔离输出,模拟量输出电流/电压跳线选择,模拟量输出电流/电压跳线选择,24V DC Source/Sink,继电器输出,I/O 接线排,(2)RS485 Ports,控制逻辑图,Sleep function/休眠唤醒功能Internal PID controller/内置PID调节器Skip frequencies and bands跳跃频率Select

6、able fan/pump curves可选的风机/水泵曲线Purge Function消防强制频率功能Freeze/Fire interlocks空调/消防系统联锁Automatic restart自动重起动Flying start飞车起动Multi-communication for HVAC支持多种HVAC的通讯协议继电器输出扩展卡:多电机控制挡板控制输入,PowerFlex400,Sleep function 休眠唤醒功能Internal PID controllerSkip frequencies and bandsSelectable fan/pump curvesPurge an

7、d Freeze/Fire interlocksAutomatic restartFlying start,PowerFlex400,Sleep functionInternal PID controller 内置PID调节器Skip frequencies and bandsSelectable fan/pump curvesPurge and Freeze/Fire interlocksAutomatic restartFlying start,PowerFlex400,Sleep functionInternal PID controllerSkip frequencies and ba

8、nds 跳跃频率Selectable fan/pump curvesPurge and Freeze/Fire interlocksAutomatic restartFlying start,PowerFlex400,Sleep functionInternal PID controllerSkip frequencies and bandsSelectable fan/pump curves 可选的风机/水泵曲线Purge and Freeze/Fire interlocksAutomatic restartFlying start,PowerFlex400,Sleep functionIn

9、ternal PID controllerSkip frequencies and bandsSelectable fan/pump curvesPurge and Freeze/Fire interlocks 消防联锁Automatic restartFlying start,Used for connection to fire and life safety systems 提供与火灾安全系统的接口Overrides control from any other source取代其它的控制源的控制Ignores STOP command from a network or softwar

10、e enable input忽略网络的停止命令及使能信号Purge Frequency is selectable 消防强制频率可设定,PowerFlex400,Sleep functionInternal PID controllerSkip frequencies and bandsSelectable fan/pump curvesPurge and Freeze/Fire interlocksAutomatic restart 自动重起动Flying start,提供故障自复位及重新起动.为无人值守的系统提供更多的方便.,PowerFlex400,Sleep functionInter

11、nal PID controllerSkip frequencies and bandsSelectable fan/pump curvesPurge and Freeze/Fire interlocksAutomatic restartFlying start 飞车起动,用来起动旋转的电机靠监测电机的反电势确定电机的转速来决定变频器的输出.减小对机械设备的冲击,PowerFlex400,March 28,2000,For Internal Use Only,Extremely Easy to Use Drive-With World-Class Performance!,Vector Con

12、trolSeries B,Product Presentation,PowerFlex 700 Drive Overview,Processor and I/O,PowerFlex 700 Drive,Control Panel,Computer,Motor,Encoder(optional),PowerFlex700,优异的性能FORCE磁通矢量控制提供精确的速度和力矩控制 配/不配PG简单的步进位置控制(位置索引)/速度 profiling applications出众的通讯能力to Logix,NetLinx&View适用于各类简单到复杂的应用:力矩校验TorqProve 用于提升的应用

13、 调压控制:用于非电机控制的应用Oil Well macros for Pump Jacks and Progressive Cavity Pumps(PCPs)磕头机和PCP泵使用方便带LCD显示的全数字式手操器 辅助的起动引导菜单,不需要手册就可调试拔插式的 I/O端子 整个功率范围的控制主板是一样的节省安装空间内置制动单元,内置通讯接口,内置EMC filters,内置共模抑制器 all save panel space and wiring time集成的一体化书本型设计,PowerFlex700,PowerFlex 700VC 说明,控制方式 Three control modes

14、for any application requirementV/Hz无传感器矢量控制 with or without encoder feedbackForce 磁通矢量控制 with or without encoder feedback都带自整定功能:方便调试,可获得较佳性能 编码器反馈卡12V or 5V options available数字 I/O6 输入-choice of voltage24 VDC sink or source,or 115 VACDedicated Hardware Enable option3 输出可编程继电器输出250 V AC,30 V DC,2 Am

15、ps模拟 I/O2 输入 差动隔离双级型;刷新时间1 msec for torque input2 输出-差动隔离(0-10V or 4-20mA),罗克韦尔自动化A-B变频器采用的是获得专利技术的磁场定向控制(FORCE)技术,其可独立控制交流电动机的磁通量和转矩电流,来实现精确的转矩和速度控制。FORCE技术采用了专利型的、频宽的电流调节器技术,加上自适应的控制器,可以对电动机的磁通量和转矩进行分离和控制。这是FORCE技术和其它矢量控制技术的根本区别。采用了磁场定向控制(FORCE)技术后,结合了编码器使用,变频器调速范围为1000:1,调速精度最高可达+/-0.001%,转矩调整精度为

16、+/-2%。,什么是ForceTM技术?,磁通矢量控制-转矩-速度曲线,-转矩-速度曲线,PowerFlex 700VC 说明,内置通讯板The PowerFlex 700 offers an internal communications option allowing the user to integrate the drive into the manufacturing process.Status indicators for all internal communications options are visible on the cover for easy set-up a

17、nd monitoring of drive communications.,PowerFlex 700 交流变频器,内置制动斩波器Standard chopper transistor and available drive-mounted(or separate mounting)braking resistor provide cost-effective dynamic brake options.,可选的控制模式The PowerFlex 700 can be programmed for Volts per Hertz or Sensorless Vector control to

18、 cover a variety of applications.,多色 LED显示Multi-color LEDs-visible through the cover of the PowerFlex 700-provide clear indication of drive status.,灵活的人机界面A flexible LCD Human Interface Module provides exceptional information display and programming ease in a multilingual format.,灵活的I/O接口Both the di

19、gital and analog I/O are flexible options on the PowerFlex 700.The Standard I/O board includes 6 digital inputs,2 relay outputs,2 analog inputs and 1 analog output,all fully programmable.,接线端标识清楚,可插拔Clearly marked,conveniently placed terminal blocks provide direct access for power and control wiring

20、 with a minimal amount of wire bending.Control blocks are“pull apart”for added convenience.,内置EMC滤波器By including an internal EMC filter,the PowerFlex 700 meets environmental standards without requiring additional panel space.,Past,Motor,DC/AC,AC/DC,SMPSdc/dc,EMIFILTER,Gate drive,PowerFlex 700,Cm cor

21、e,Line Reactor,Line Reactor,Insulation Type 1000 Vpk 1200 Vpk,RWR1-5 hp,EMIFilter,Lower$DC/AC,AC/DCnew precharge,Lower$SMPSdc/dc,EMIFILTER,Dynamic Brake,Insulation Type 1000 Vpk 1200 Vpk 1600Vpk 1850 Vpk,Motor,Cable length 300ft,RWR1-5 hp(Maxima),Dynamic Brake,PowerFlex“工程型产品”主要特性,节省空间的硬件设计:,硬件结构-No

22、ise Suppression,Noise Suppression,PowerFlex 700 Frame 5,Power Structure Frame 5&6,力矩校验TorqProveTM Applications,TorqProve can be used in any application where coordination between the drive and the mechanical brake is required.力矩校验应用于变频器与机械抱闸配合的控制.Lifting applications include:Cranes 起重机Hoists吊机Materi

23、al handling lifts(vertical conveyors)物料垂直输送Automatic Storage and Retrieval Systems(ASRS)自动货库Palletizers码堆机,The PowerFlex 700 utilizes closed-loop Vector Control for assured control of the load at all times,TorqProveTM for Lifting Applications/力矩校验在起重设备的应用,Benefits include:Assured control of the load

24、有效的控制负载.TorqProveTM assures that the mechanical brake has control of the load when stopping the drive,and the drive has control of the load when releasing the brake during a move commandTorqProveTM and Force TechnologyTM helps eliminate concerns with brake timing and environment changes inherent in

25、V/Hz drives Reduced set-up time缩短调试时间Very easy to set-up only a few parametersNo PLC programming required for function(brake control is performed by drive)No Special drive or software required不需要特殊的软件The TorqProveTM feature comes standard!Outstanding performance 突出的性能The TorqProve function is must f

26、aster than it would be if performed using a PLCThe PowerFlex 700 drive offers industry-leading Vector performance in an easy-to-use drive.,Lifting applications can now be solved easily using the new TorqProveTM features in the PowerFlex 700.,Features include:Automated Torque&Brake Proving力矩、抱闸校验Floa

27、t Capability悬停功能 drive holds zero speed for while holding brake openMicro Position(creep speed)位置微调Fast Stop Stops load as fast as possible then sets brake(reduces wear)快速停车Protection capability including保护功能:Brake Slip DetectionSpeed Deviation FaultOutput Phase Loss DetectionEncoder Loss Fault,力矩校验

28、在起重设备的应用,TorqProve Feature Description Details力矩校验特点:Automated Torque Proving&Brake Proving、力矩校验、机械抱闸校验当变频器收到运行命令,变频器将:快速磁通建立,输出转矩确认输出转矩存在后,释放抱闸当收到停车命令后(悬停时间结束),变频器将:输出控制抱闸闭合确认抱闸已控制住负载后,输出转矩撤消(溜钩检测)力矩校验功能要求变频器设置为FVC 磁通定向控制,带编码器反馈Float Capability 悬停功能当收到停车命令后,变频器减速到零速,维持零速一段时间(可设置)控制抱闸闭合.这个功能允许操作工可以重

29、新定位,而不需要抱闸频繁动作.悬停功能也可由I/O 输入来控制(I/O 配置为Micropos/Float)Micro Position 位置微调(数字输入端)这个输入端的功能:使输出的速度降低为前一次速度的一定比例,降低的比例可设置.这匀许低速的移动物体,方便定位.Fast Stop 快速停机当快速停机输入时,变频器将快停然后输出控制抱闸闭合.,TorqProveTM for Lifting Applications,TorqProve Protection Feature Description Details:Brake Slip Detection溜钩保护当负载移动停止,机械抱闸闭合,

30、变频器将斜坡降低输出转矩,同时监测编码器反馈,确认负载被控制.如果监测到编码器反馈有变化(溜钩),变频器会马上增加输出转矩,重新控制负载,按照预先设定的速度 下放负载.变频器会重复以上的周期,直到抱闸能控制负载或负载安全下放到地面.Speed Deviation Fault 速度偏离保护(失速保护)变频器会连续的监测速度命令和速度反馈,比较其偏差,如果偏差超出所允许的范围,那么变频器将变为故障状态,同时,抱闸投入工作.Output Phase Loss Detection输出缺相保护三相输出接线端被监测,确保输出每有缺相.一但TorqProve 使能,这项功能不能被屏闭.Encoder Los

31、s Fault编码器丢失变频器会连续的监测编码器反馈,确保编码器工作正常.只要出现编码器丢失变频器马上变为故障状态,同时,抱闸投入工作.一但TorqProve 使能,这项功能必需使能.,TorqProveTM Timing Diagram/力矩校验时序图,With and Without TorqProve,1.Drive started,2.电机转矩已建立,4.Lifting occurs,3.报闸释放,带力矩校验,不带力矩校验,Frames 9 12No Integral Pre-ChargeOption,Frame 0 4IntegralPre-Charge,Rockwell 公共直流母

32、线方案介绍,Front Ends(NON-REGENORREGEN),ACInput,DC Bus,Frame 5 6with Pre-Charge,StandardSwitch,StandardSwitch,Pre-ChargeAssembly,Chopper or DBU Module,Brake Resistor,Capacitor Bank or RC Snubber,什么是公共直流母线,公共直流母线是指有统一的整流单元,将逆变器部分连接到公共的直流回路上的系统。通常在冶金、造纸、化纤等行业会用到公共直流母线方案。Rockwell是为数不多的能提供真正意义的公共直流母线方案的产品供货商

33、之一。Rockwell有自己的整流单元,并且新一代的工程型变频器PowerFlex40/40P和PowerFlex70/700都可以用做公共直流母线的逆变单元。,AC,Inverter,Inverter,Inverter,Inverter,AMC,AMC,AMC,AMC,Common DC Bus,ThyristorSupplyUnit,单台传动:独立的整流单元,公共直流母线:公共的整流单元更少的元器件集中的制动单元,Control,Control,公共直流母线的优点,统一的整流单元配上统一的3%电抗器和滤波器(HF Filter),使系统对电网的干扰降到最低,远远小于单台变频器对电网的干扰,

34、有利系统的可靠稳定运行。多机传动中的每台单机的再生能量可以被充分利用,多台逆变器一般不会同时处于制动状态下,少数制动的逆变器回馈到直流侧的能量,可以被正处于电动状态下的另一些逆变器所吸收。优化工艺,Multi-Motor Applications一拖多方案,为了有效保护电机,每台电机上端需单独加一台热继保护。变频器的额定电流应大于电机所有电流之和,建议为所拖电机电流之和的1.21.3倍。,位置/速度 Profiling,位置控制点到点的位置控制定位的方式:增量型的绝对值型的(referenced to home),Additional Features:位置序列有16步每一步都有以下设置:进程

35、可以在16步序中随意跳转一个周期 or continuous cycling自动回位功能自动回位程序回到限位开关或编码器标识线Blend moves,速度调节的 Profiling 速度改变基于:时间Digital inputsI/O脉冲数参数值,减速&行程极限开关操作,数字输入选择行程极限开关(常闭)当开关打开时,停止变频器不允许在向此方向运行允许向相反方向运行减速开关(常闭)当开关打开时,减速按预置速度一爬行此低速维持到行程极限开关打开允许向相反方向按正常速度运行Several End Limits switches(as well as Decel switches)can be wir

36、ed in series into one inputThese digital inputs can be used many applications without TorqProve being enabled,New!,Torque Follower力矩跟随/主从控制,A more precise form of Load Sharing:Proportional master slave load sharing.精确的负荷分配Precise speed regulation.精确的速度调节Operates over a wide speed range.宽的调速范围Multipl

37、e drives act as a single drive/motor set.多台电机的性能表现的象一台电机的性能一样,多台电机之间的负荷分配,同步问题,多台电机之间的负荷分配,同步问题,编程 文件,参数组,参数,调 试 方 便,S.M.A.R.T Start不需要较多的编程知识只须做基本设置即可起动!辅助调试2 levels 基础的高级的完整功能设置全文字屏幕问答形式简单的马达/变频器自整定输入电机铭牌值后,余下的工作由变频器完成!,S.M.A.R.T.启动,快速方便的启动程式无需了解程序结构8 个最常用功能SS tart and Stop ModesMM inimum and Maxi

38、mum SpeedAA ccel and Decel TimesRR eference SelectionTT hermal Overload Motor Protection改变基本参数即可启动!,内置通讯卡,多种通讯选件可选DeviceNetControlNetRemote I/OProfibus DPInterbus SLonWorksRS-485 HVACMetasys N2/FLN P1/Modbus RTUEtherNet/IP无需外部供电,Advanced peer-to-peer and I/O messaging enhance network performance!,Po

39、werFlex“7”Class-Rockwell 核心网络,1203-SSS,1336Plus/ImpactPowerFlex4,40,40P,400PowerFlex70PowerFlex700/700HPowerFlex700S,DriveExecutive Software,Automatic Database Creation,DriveExecutive uses databases for fast performance online and for editing drive configurations offline.,调试软件,DriveTools SP,DriveExp

40、lorer,DriveObserver Software,Monitor multiple charts!,工程型变频器的特点,Force技术的磁场定向矢量控制Zero StackingTM-零间隙安装能力内部通讯允许用户将通讯集成到制造过程中内置的EMC输入滤波器内置的共模抑制输出滤波器内置的直流母线电抗器内置的制动单元相同的人机接口,包括LCD人机接口模块和基于PC的组态软件 TorqProveTM for Lifting Applications提升应用的力矩校验功能,PowerFlex 700VC-应用,成功的应用:吊机&起重设备(力矩校验)汽车厂的垂直升降机钢厂,纸厂的天车物料运输O

41、EM配套提供的垂置运输带风机&水泵大型半导体厂的空气处理设备电厂空冷系统冲压机设备Large stamping presses for metal fabrication several OEMs,“磕头机”Pump jacks at Canadian OEMs卷取设备电缆 薄膜,胶片调压设备焊接设备发电厂的供电设备,Rockwell低压交流变频器,Volts/Hertz,1336 PLUS II AC Drive,1336 IMPACT AC Drive,Speed/Torque RegulationOpen or Closed LoopDynamic Performance,1336 FO

42、RCE AC Drive,PowerFlex700S,PowerFlex700Vector,PowerFlex700STD,PowerFlex700H,PowerFlex70,PowerFlex40/40P,1305 AC Drive,PowerFlex400,PowerFlex4,满足不同的应用和性能要求,March 28,2000,For Internal Use Only,DeviceNet 网络通讯介绍,Vector ControlSeries B,PowerFlex700 DeviceNet,PowerFlex700 DeviceNet,1.将变频器上电。在HIM选择Memory R

43、eset to Defaults,然后按Enter键,将变频器下电,显示变频器断电后,再次将变频器上电。2.使用HIM选择Start-Up,在Motor Control中选择电动机的控制方式;3.将PowerFlex700VC SeriesB变频器通过20-COMM-D连接在DeviceNet网络上,将ControlLogix处理器通过1756DNB模块连接到DeviceNet网络上,通过RSNetWorx软件修改变频器参数。4.单击StartProgrammeRockwell SoftwareRSLinxRSLinx,启动RSLinx。单击图标,选择Ethernet/IP驱动;,PowerF

44、lex700 DeviceNet,图 添加Ethernet/IP驱动,单击 图标,展开刚才添加的Ethernet/IP驱动,如下图所示。,图 获得驱动组态树,PowerFlex700 DeviceNet,单击StartProgrammeRockwell Software RSNetWorxNetWorx for DeviceNet,打开RSNetworx for DeviceNet软件。点击工具栏上的,图标,显示“Browse for network”对话框,选择DeviceNet,点击OK,如下图所示。,图 连接到网络,PowerFlex700 DeviceNet,此时,RSNetWorx开

45、始扫描网络。RSNetWorx将自动查找网络驱动列表下的所有设备。扫描完成后,DeviceNet网络上设备均以图标形式显示,如下图所示。,双击PowerFlex700 VC变频器的图标,弹出如下对话框,点击Upload上载变频器参数。,PowerFlex700 DeviceNet,图 上载变频器参数,PowerFlex700 DeviceNet,Option 1 http:/,PowerFlex700 DeviceNet,PowerFlex700 DeviceNet,PowerFlex700 DeviceNet,Option 2 http:/,PowerFlex700 DeviceNet,Po

46、werFlex700 DeviceNet,Why do my drives intermittently drop off the network?DeviceNetNot using the recommended cablingYou must use DeviceNet ODVA compliant cable that has a 121 ohm resistance You can use the Cable Finder,and search http:/under DeviceNetForgetting to install termination resistors on bo

47、th ends of the network You must install a 121 ohm,1%tolerance resistor at each endRule of thumb install a resistor at“starting”device and“ending”deviceYou must install a wire between the 24 VDC power supply V-terminal and PE(earth ground)Using shielded DeviceNet cablingInstall a wire between the DeviceNet connector SHLD terminal and V-terminal at the same ground pointRemember,only ground one device on the entire network you do not want to induce ground loops,Knowledgebase,Knowbase,March 28,2000,For Internal Use Only,Thank You!,

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