Baldor MN1903 installation manual Adjusting Kprop

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5.7.2 Adjusting KPROP

The KPROP term can be used to reduce following error. Its value will usually be much smaller than the value used for an equivalent current controlled system. A fractional value, for example 0.1, will probably give the best response.

1.Click in the KPROP box and enter a starting value of 0.1.

2. Click Go.

The NextMove PCI will perform the move and the motor will turn. As the soon as the move is completed, WorkBench v5 will download captured data from the NextMove PCI. The data will then be displayed in the Capture window as a graph.

Note: The graph that you see will not look exactly the same as the graph shown here! Remember that each motor has a slightly different response.

3. Using the check boxes below the graph, select the Measured position and Demand position traces.

MN1903

Operation 5-25

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Contents NextMove PCI Motion Controller Page Contents Operation Appendices Iv Contents MN1903 General Information Precautions Safety NoticeMN1903 Introduction NextMove PCI featuresIntroduction MN1903 Catalog number PCI001 InstalledReceiving and inspection Identifying the catalog numberUnits and abbreviations PhaseTools and miscellaneous hardware Other information needed for installationIntroduction Hardware requirementsLocation requirements NextMove PCI Expansion card and can Bracket board InstallationThis completes the basic installation Installing the NextMove PCI cardBasic Installation MN1903 Outline 100-pin edge connectorPin Signal 1 100-pin connector pin assignment100-pin connector pin assignment Analog I/O Location Analog inputsPin Name MintMT keyword / description Analog input wiring, AIN0 shown Pin Name Description Analog outputs Drive Demand/CommandDigital I/O Input Common Breakout module connectorDigital input arrangement Stepperio Pin Name MintMT keyword Common Description Digital inputsINX.4 Digital input circuit fast interrupts Digital outputs OUTX.0 Encoder interfaces X12, X13, X14, X15 Other I/OEncoder input frequency Power Relay connections Relay and can powerPin X10 Name X11 Name Description Stepper drive outputs X10Cable length Maximum bit Resistance Conductor Rate Area Can Connections1 CAN1 CANopen 2 CAN2 Baldor can Baldor proprietary can interface using a RJ45 connectorEmulator connection Reset statesSystem watchdog Example minimum system wiring Connection summary minimum system wiringBreakout Pin Name Function This completes the input/output wiringModule Signal Connector Connector details for minimum system wiring shown in FigureInput / Output MN1903 Drivers\nmPCI\win9x Installing the driver software Windows 95, 98 and MEInstalling the driver software Windows Installing the driver software Windows NT\start Installing WorkBenchStarting WorkBench MN1903 Operation Operation MN1903 Help file WorkBenchChoosing an axis 1, 2, 3 and 4 axis cards Configuring an axisChoosing an axis 8 axis card Selecting a scale Setting the drive enable output Testing the drive enable output Testing the drive command output Servo axis testing and tuningAn introduction to closed loop control Summary, the following rules can be used as a guide NextMove PCI servo loop Selecting servo loop gains Servo axis tuning for current controlMN1903 Operation Underdamped response Underdamped responseOverdamped response Overdamped responseCritically damped ideal response Critically damped responseServo axis eliminating steady-state errors Calculating Kvelff Servo axis tuning for velocity controlKvelff Correct value of Kvelff Adjusting Kprop Correct value of Kprop JOG.0=2 Stepper axis testingDigital input configuration Digital input/output configurationDigital output configuration Saving setup information 10.1Loading saved information Operation MN1903 SupportMet feature Problem diagnosisStatus and can LEDs NextMove PCI indicatorsCommunication Symptom CheckMotor control Output polarity Mechanical specifications Digital inputs X1 Encoder interfaces X12 Relay output10CANopen interface Stepper outputs X1011Baldor can interface NextMove PCI Expansion card NextMove PCI Expansion cardExpansion Expansion card Axis numbering when using expansion cardsMain Expansion cards With no One 4-axis One 8-axis Two 4-axisExpansion card status LEDs CBL021-503 NextMove PCI Breakout moduleCatalog number Description PCI003-501 CBL021-501Catalog Description Number OPT025-508 Digital output modulesNextMove PC system adapter SparesBaldor can nodes OPT029-501 NextMove PCI can Bracket boardEncoder Splitter/Buffer board Catalog Description Number OPT008-501Accessories MN1903