Oriental motor aSTEP AZ mini Driver, Руководство пользователя

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Coordinates management
98
3 E
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AT c
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Setting example of index table
This is an example in which the index table is made rotate once
when the motor output shaft rotates 18 times.
•
Gear ratio of motor:18
Concept of initial coordinate
To rotate the index table in both directions, 18 revolutions are divided into positive and negative revolutions, 50 % for
each direction.
–4.5 4.5
0
–9
0 –4.5 9 4.5 –9
Setting examples of parameters
Index Name Setting value
47F2h Initial coordinate generation & wrap coordinate setting 1: Manual setting
41C7h Wrap setting 1: Enable
41C9h Initial coordinate generation & wrap setting range [1=0.1 rev] 180
41CBh Initial coordinate generation & wrap range offset ratio [1=0.01 %] 5,000
41CCh Initial coordinate generation & wrap range offset value 0 step
z
Relation between the wrap function and the 32-bit counter inside the driver
The 32-bit counter inside the driver outputs the position information of the motor as the number of steps regardless
of whether the wrap function is enabled or disabled.
When the wrap function is enabled, the relation between the wrap coordinate and the 32-bit counter is shown below.
Example: If the wrap function is performed when the motor rotates 180 times in the same direction
Motor output shaft
0 to 180 revolutions
1,800,000 steps
3,600,000 steps
5,400,000 steps
0
180 rev
32-bit counter
(steps)
Wrap
coordinate
(rev)
The present position of the motor is preset by 180 revolutions, however, the 32-bit counter is not preset.
The value of the 32-bit counter can be checked by the Command position 32-bit counter (4091h).
The 32-bit counter goes around between −2,147,483,648 and 2,147,483,647.
0 2,147,483,647 –2,147,483,648
It shows 2,147,483,647 after –2,147,483,648, and after that, it shows in descending order.
It shows –2,147,483,648 after 2,147,483,647, and after that, it shows in ascending order.