Find Reference Settings for Motion Controllers

Publish Date: Sep 06, 2016 | 6 Ratings | 3.67 out of 5 | Print

Note: The instructions contained in this document are for NI-Motion 6.x or earlier. For instructions for NI-Motion 7.0 or later refer to Measurement & Automation Explorer Help for Motion.

To conifgure the reference signals for this axis on your motion controller, click on the plus sign next to Find Reference Settings to expand the selection.






Find Reference Home Settings:

Use this tab to configure the settings for subsequent reference moves for finding the home switch.

You can configure the initial search direction, final approach direction, the edge of the switch to stop on, and the approach velocity.

You can also set an offset move that happens after the home is found, and whether the controller resets the position after the move.

Refer to the NI-Motion Function Reference Help for more information.







 

 
Find Referece Index Settings:


Use this tab to configure the settings for subsequent reference moves for finding the index pulse from an encoder.

You can configure the initial search direction and the approach velocity, create an offset move, reset the position after the move, and determine the criteria for index pulse.

Refer to the NI-Motion Function Reference Help for more information.










 

 

 

 

 

 

 


Find Reference Forward/Reverse Limit:

Use these tabs to configure the settings for subsequent reference moves for finding the forward limit , reverse limit or center of the range of travel of your axis or axes.

You can configure the initial search direction, final approach direction, and the approach velocity.

You can also set an offset move that happens after the home is found, and whether the controller resets the position after the move.

Refer to the NI-Motion Function Reference Help for more information.













 

 


 

Find Reference Sequence Tab:

Use this tab to configure a sequence of reference moves. This sequence can then be run from LabVIEW, C or Visual Basic using the Find Reference Function.
This sequence can also be tested from MAX by clicking on the Run Find Sequence on Initialization box under the Initialization Preferences Tab.
Refer to the NI-Motion Function Reference Help for more information.






Creating a Find Reference Sequence:

A sequence will consist of several phases. By default only the phase 1 entry is available.
Right-click on the Phase entry to expose the Find Reference Tools Menu.
Multiple find reference moves per axis can be added to each phase,
for example, the find referencesequence for axis one might consist of a
find home move in phase 1 and find reverse limit in phase 2, while for axis two it might
consist of a find center in Phase 1 and a find index in phase 2.
This sequenceof moves can be run at initialization by doing the following :
1.-Check the Run Find Sequence at Initialization Box in under the
Initialization Preferences tab in MAX as shown below.
2.-Press the Initialize Button.






Click Apply for your new settings to take effect.




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