Baldor iMN1921 installation manual Stepper axis testing, Testing the output

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5.4 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.

5.4.1 Testing the output

This section tests the operation and direction of the 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 (down).

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.

The JOG command specifies the speed in user units per second, so the speed is

affected by SCALE (section 5.3.1). If you have not selected a scale, the command JOG.0=2 will cause rotation at only 2 half steps per second, so it may be necessary to increase this figure significantly, to 200 for example. If you have selected a scale that provides user units of revolutions (as described in section 5.3.1) JOG.0=2 will cause rotation at 2 revolutions per second. If there appears to be no drive output, check that jumper JP1 has not been set to disable the outputs - see section 4.5.3.

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

JOG.0 = -2

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

STOP.0

5-8 Operation

MN1921

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Contents NextMove ST Motion Controller Page Contents Operation General Information Safety Notice PrecautionsNextMove ST features MN1921 IntroductionReceiving and inspection Phase Units and abbreviationsIntroduction MN1921 You should read all the sections in Basic Installation IntroductionLocation requirements Package dimensions Mounting the NextMove STOther requirements for installation Basic Installation MN1921 Input / Output Connector locations Power connections Operation using combined drive and logic supplyOperation using separate drive and logic supplies Connecting separate drive and logic suppliesConnecting a 4-wire motor Stepper outputsStepper axes 0-2 drive outputs Connecting a 6-wire motor Connecting a 8-wire motor Connecting a 8-wire motor, parallel windingsStepper axes 0-3 logic outputs Stepper output pin header J3, and output circuit shownAnalog I/O Analog inputsAnalog output Analog outputDigital I/O Digital inputsUsing a digital input as an Error input Using a digital input as a Limit or Home inputUsing a digital input as a Stop input Auxiliary Encoder inputs Auxstep IN, Auxdir IN, AuxzDigital outputs Digital output DOUT0 shownGlobalerroroutput keyword Error outputDriveenableoutput keyword Jumper settingsLocation Other I/ORS232 serial communication Pin Name Description2 50-pin edge connector RS232 serial port connectionsCan communication Typical can network connectionsJP1 This will connect an internal terminating resistor CANopen and Baldor canConnection summary minimum system wiring Host PCInput / Output MN1921 Starting the NextMove ST Connecting the NextMove ST to the PCInstalling WorkBench Preliminary checksPower on checks WorkBench Help fileStarting WorkBench MN1921 Operation Configuring an axis Selecting a scaleClick Apply Stepper axis testing Testing the outputDigital input/output configuration Digital input configurationDigital output configuration Saving setup information Loading saved information Problem diagnosis SupportMe featureNextMove ST indicators Status displaySurface mount LEDs D3, D4 and D16 Symptom Check CommunicationMotor control Input power Output power ValueEquivalent resolution ±10V input Common mode voltage rangeInput impedance 120 Input ADC resolution Bits Output current max Update interval ImmediateOutput current maximum, per axis Stepper axis 0-2 drive outputsUnit Value Maximum output frequency KHz 200 Output voltage Unit Value Output typeEnvironmental Unit Value SignalCan interface Channels Protocols CANopenIndex Index MN1921 Comments CommentComments MN1921 Page LT0184A00