NI 9930 Motion Control Accessories User Guide
30
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When you are finished the Encoder Settings page will look similar to Figure 22.
Figure 22.
Axis Configuration Encoder Page
4.
Click the
Stepper
button to open the
Stepper
page. Configure the stepper output and steps per rev
settings:
a.
Set
Output Mode
to
Step and Direction
.
b.
Set
Output Type
to
Differential
.
c.
Set
Active State
to
Low
.
d.
Set
Steps Per rev
depending on the encoder resolution. For example, if you are using an
encoder with 2500 pulses per revolution, set
Steps Per rev
to 2500.
When you are finished the Stepper Settings page will look similar to Figure 23.
Figure 23.
Axis Configuration Stepper Page
e.
In the
Position Error
section, change the
Position Error Limit
to an acceptable value for
your system. Exceeding the specified position error limit causes NI SoftMotion to disable the
drive and turn off the Drive Enable signal.
Содержание NI 9930
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