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ni.com
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Getting Started with NI SMD-7620/7621 and NI 9512 Modules
4.
Click the
Stepper
button (
) to open the
Stepper
page.
a.
Ensure that the Stepper Output settings match the following:
•
Output Mode
—Step and Direction
•
Output Type
—Single-Ended
•
Active State
—Low
b.
Configure the Units and Steps Per Unit.
•
Select
rev
from the
Units
text box, or type
revolutions
if you prefer.
•
Set
Steps Per revolution
to 20,000.
Note
The
Stepper steps per revolution
setting
must
match the Steps/Rev setting
in the NI Stepper Configuration Utility. The NI Stepper Configuration Utility settings
are covered in
Step 5: Configure the Drive Using the NI Stepper Configuration
.
c.
(Optional) Click the
Monitor
button (
) and make the following changes to
enable NI SoftMotion to disable the drive and turn off the Drive Enable signal when
the specified position error limit is exceeded.
Note
The
Monitor
button is greyed out if
Feedback Source
on the
Axis Settings
page is set to
None
.
•
Enable the
Enforce Position Error Limit
checkbox.
•
Set
Position Error Limit
to a reasonable tolerance for your system, such as 1.
5.
Click the
Drive Enable
button (
) and ensure that the Drive Enable settings match the
following:
•
Output Type
—Sourcing
•
Active State
—Off
•
Safe State
—On
6.
If you connected the Y1+/Y1- signal, click the Digital I/O button (
) and complete
the following steps to configure the DI 0 signal:
a.
Double-click the text in the
Mapping
column and select
Drive Fault/Alarm
from the
dropdown list.
b.
Ensure that the DI 0 settings match the following:
•
Input Type
—Sinking
•
Active State
—On
•
Digital Filter
—50 µs