NI 9930 Motion Control Accessories User Guide
48
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8.
Complete the following additional steps if you do not have limits and home connected at this time:
a.
Open the
Limits & Home
page.
b.
In the
Forward Limit
and
Reverse Limit
sections ensure that the settings match the
following:
Note
These configuration settings disable limits for initial setup and testing purposes. National
Instruments recommends connecting and enabling limits in your final application.
•
Clear the
Enable
checkbox from both
Forward Limit
and
Reverse Limit
.
•
Set the
Active State
for both
Forward Limit
and
Reverse Limit
to
Off
. This prevents
a limit warning even though limits are turned off.
c.
Open the
Home
section and clear the
Enable
checkbox.
9.
Configure any additional I/O settings according to your system requirements, such as position
compare or position capture signals.
10. Click
OK
to close the
Axis Configuration
dialog box.
11. Right-click the controller item in the
Project Explorer
window and select
Deploy All
to deploy
the axis information.
12. Click
Apply
in the
Conflict Resolution
dialog box when it appears.
13. Select
File»Save Project
to save the project.
Step 4: Enable and Test the Drive Using LabVIEW
Use the Interactive Test Panel to test and debug your motion system and configuration settings on the
selected axis. With the Interactive Test Panel you can perform a simple straight-line move and monitor
feedback position and position error information, move and I/O status information, change move
constraints, get information about software errors and faults, and view position or velocity plots of the
move.
Complete the following steps to test your setup after configuring the axis using the
Axis Configuration
dialog box.
1.
Right-click the axis in the
Project Explorer
window and select
Interactive Test Panel
from the
shortcut menu.
2.
On the
Move
tab set
Target Position
to 25 revolutions.
3.
On the
Move Constraints
tab set
Velocity
to 1 revolution/sec. Using the encoder counts per
revolution and stepper steps per revolution values specified in this tutorial the motor will move
25 revolutions at 60 RPM. Click the
Help
button for detailed information about the items available
in this dialog box.
4.
Click the
Enable
button to enable the drive.
5.
Click the
Start
button on the bottom of the dialog box to start the move with the configured options.
6.
Use the
Status
and
Plots
tabs to monitor the move while it is in progress.
Finalize your motion system setup by connecting and configuring additional I/O such as limits as
required by your system using the screw terminal connectors on the NI 9930Y accessory.
Summary of Contents for NI 9930
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