89
z Default positioning band (in-position)
The factory setting is “0.10 [mm].”
When a target position is written to an unregistered position table or the current position is read in the
teaching mode, the setting in this parameter will be used as the positioning band data for the applicable
position number.
Increasing the default positioning band will allow the position complete signal to be output early. Change
the setting in parameter No. 10, as necessary.
z Default acceleration only MAX flag
To cause the actuator to decelerate gradually when stopping, a lower acceleration/deceleration should be
set. However, this will also reduce the acceleration.
This parameter allows for quick acceleration while reducing the deceleration.
The factory setting is “0: [Disable].”
When a target position is written to an unregistered position table or the current position is read in the
teaching mode, the setting in this parameter will be used as the acceleration only MAX data for the
applicable position number.
To enable the default value, change parameter No. 11 to “1: [Enable].”
z Push & hold stop judgment period
This parameter is used as a judgment condition when determining if the load was contacted and the push
& hold operation has completed.
The push & hold operation is judged complete if the current-limiting value set in the position table has
been maintained for the period set in parameter No. 6.
Set an optimal value by considering the shape and strength of the load, as well as the current-limiting
value.
The minimum setting unit is “1 [msec],” and the maximum judgment period is “255 [msec].” The factory
setting is “255 [msec].”
(Note) If the load has shifted and the current has changed during the push & hold judgment, the
judgment follows the timing chart shown below. This example assumes a judgment period of 255
msec.
After reaching the push current, it is maintained for 200 msec. The current drops during the subsequent
20-msec period, and accordingly the count is decremented by 20. Therefore, when the operation is
resumed the count will start from 180. Since the count will reach 255 after 75 msec at the push current,
the controller will determine that the push & hold operation has completed.
In this example, the total judgment period is 295 msec.
Push current
20 msec
Start position
Target position
Counting starts
Counting continues until 200
Count is decremented to 180
Count is incremented to 255
Judgment of push & hold completion
75 msec
To Next Page
Loading...
Need help?
General
