Baldor MN1903 installation manual Stepper axis testing, JOG.0=2

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5.8 Stepper axis - testing

This section describes the method for testing a stepper axis. The stepper control is an open loop system so no tuning is necessary.

5.8.1 Testing the drive command output

This section tests the operation and direction of the axis command output. It is recommended that the system is initially tested and tuned with the motor shaft disconnected from other machinery.

1.Check that the Drive enable button is pressed.

2.In the Toolbox, click the Edit & Debug icon.

3.Click in the Command window.

4.Type:

JOG.0=2

where 0 is the axis (stepper output) to be tested and 2 is the speed.

Note: The JOG command specifies a speed in user units per second, so the speed is affected by SCALE (section 5.3.3).

If there appears to be no pulse or direction output, check the electrical connections between the breakout module and the drive.

5.To repeat the tests for reverse moves, type:

JOG.0 = -2

6.To remove the demand and stop the test, type:

STOP.0

MN1903

Operation 5-27

Image 69

Contents NextMove PCI Motion Controller Page Contents Operation Appendices Iv Contents MN1903 General Information Precautions Safety NoticeMN1903 Introduction NextMove PCI featuresIntroduction MN1903 Receiving and inspection InstalledIdentifying the catalog number Catalog number PCI001Units and abbreviations PhaseIntroduction Other information needed for installationHardware requirements Tools and miscellaneous hardwareLocation requirements This completes the basic installation InstallationInstalling the NextMove PCI card NextMove PCI Expansion card and can Bracket boardBasic Installation MN1903 Outline 100-pin edge connectorPin Signal 1 100-pin connector pin assignment100-pin connector pin assignment Analog I/O Analog inputs LocationPin Name MintMT keyword / description Analog input wiring, AIN0 shown Pin Name Description Analog outputs Drive Demand/CommandInput Common Breakout module connector Digital I/ODigital 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 connectorReset states Emulator connectionSystem watchdog Example minimum system wiring Connection summary minimum system wiringModule Signal Connector This completes the input/output wiringConnector details for minimum system wiring shown in Figure Breakout Pin Name FunctionInput / 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 WorkBenchConfiguring an axis Choosing an axis 1, 2, 3 and 4 axis cardsChoosing 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 indicatorsSymptom Check CommunicationMotor control Output polarity Mechanical specifications Digital inputs X1 Encoder interfaces X12 Relay outputStepper outputs X10 10CANopen interface11Baldor can interface NextMove PCI Expansion card NextMove PCI Expansion cardMain Expansion cards Axis numbering when using expansion cardsWith no One 4-axis One 8-axis Two 4-axis Expansion Expansion cardExpansion card status LEDs Catalog number Description PCI003-501 NextMove PCI Breakout moduleCBL021-501 CBL021-503NextMove PC system adapter Digital output modulesSpares Catalog Description Number OPT025-508Baldor can nodes Encoder Splitter/Buffer board NextMove PCI can Bracket boardCatalog Description Number OPT008-501 OPT029-501Accessories MN1903