Getting Started with NI Integrated Steppers and NI 73xx Motion Controllers
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© National Instruments
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4.
Click the
Firmware
tab at the bottom of the window. An exclamation point appears for
each firmware sector that requires an update.
5.
Click the
Update Firmware
button at the top of the window to update all the firmware files
on your device.
Step 2: Configure the NI Motion Controller
Complete the following steps to configure the NI 7330/7340/7350 motion controller for use with
the integrated steppers.
1.
Open MAX, if it is not already open.
2.
Expand
Devices and Interfaces
, expand
NI Motion Devices
, and then select the
appropriate motion controller in the configuration tree.
3.
Expand the NI motion controller configuration tree item and click
Default 73xx Settings
.
4.
Select
Open Loop Stepper
from the
Default Configurations
section.
5.
Expand
Default 73xx Settings
, and then expand the axis associated with the integrated
steppers.
6.
Click
Axis Configuration
and set
Type
to
Stepper
.
7.
Click the
Stepper Settings
tab on the bottom of the window and set
Stepper steps per
revolution
to 25,000.
Note
The
Stepper steps per revolution
setting
must
match the Step Size DIP
switch setting on the NI ISM. If you change the Step Size setting using the DIP
switches, update this setting to match.
8.
Click
Motion I/O Settings
and select
Disabled
for the
Forward Limit Switch
,
Reverse
Limit Switch
, and
Home Switch
.
Note
These configuration settings disable limits for initial setup and testing
purposes. National Instruments recommends connecting and enabling limits in your
final application.
9.
Set the limit and home input active state. This prevents the limit active error from occurring
when no limits are connected.
a.
UMI-7764
—Active Low Polarity
b.
UMI-7772/7774
—Active High Polarity
10. Set
Inhibit Output Settings
to
Active Low Polarity
.
11. (Optional) Click
Encoder Settings
.
a.
In the
Polarities
section confirm that the
Line State
for
A
,
B
, and
Index
is set to
Active High
.
b.
In the
Index Reference Criteria
section confirm that the
Line State
for
A
and
B
is
set to
Inactive
.
