8-29
8-4 Analog Control Parameters
Accurax G5 AC SERVOMOTOR AND SERVO DRIVE USER'S MANUAL
8
Parameters Details
Control the speed by setting acceleration/deceleration to the speed command inside the driver.
A soft start can be set when inputting speed commands of stepping movement or when using
internal speed setting.
Do not set acceleration/deceleration time settings when using the driver in combination with an
external position loop. (Set both Pn312 and Pn313 to 0.)
Set the pseudo-S-curve acceleration/deceleration value to add to the speed command to enable
smooth operation. This is useful for applications where impact may occur due to a large change
in acceleration or deceleration when starting or stopping with linear acceleration or deceleration.
Explanation of Set Values
Pn313
Soft Start Deceleration Time
Setting
range
0 to 10,000 Unit ms/(1,000 r/min)
Default
setting
0
Power OFF
and ON
−
Speed
Pn314
S-curve Acceleration/Deceleration Time Setting
Setting
range
0 to 1,000 Unit ms
Default
setting
0
Power OFF
and ON
−
Speed
ta td
Speed
ts ts ts ts
1. Basic linear acceleration time and
deceleration time are set by Pn312
and Pn313, respectively.
2.
The S-curve time is set by Pn314
(unit: 2 ms) based on the time width
around the point of inflection during
linear acceleration and deceleration.
ta: Pn312
td: Pn313
ts: Pn314
Use > ts, and > ts
as settings.
ta
2
td
2
Pn315
Zero Speed Designation Selection
Setting
range
0 to 3 Unit −
Default
setting
0
Power OFF
and ON
−
Speed
Torque
Set
value
Explanation
0 Zero speed designation function is disabled.
1 Speed command becomes 0 upon zero speed designation input. (Refer to Figure A)
2
Speed command becomes 0 upon zero speed designation input, and servo locks with
position control when actual speed reaches below Zero Speed Designation Level (Pn316).
(Refer to Figure B)
3
Servo locks with position control upon zero speed designation input and when speed
command reaches below Zero Destination Level (Pn316). (Refer to Figure C)
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