5-3
n023 : S-Curve Selection
Factory setting: 0
Range: 0 to 3
Setting of this parameter
determines the S-curve
(starting) characteristics 
of the acceleration ramp.
0 =  S-curve disabled
1 =  S-curve 
of 0.2 seconds
2 =  S-curve time 
of 0.5 seconds
3 =  S-curve time 
of 1.0 seconds
NOTE: Actual accel time = Set accel time + (2 
* 
S-curve selection)
Actual decel time = Set decel time + (2 
* 
S-curve selection)
The following figure shows FWD/REV switching and acceleration & deceleration to a stop with 
S-curve active.
RUN
FREQ
COMMAND
0
TIME
S-Curve Characteristics    
Time (T
SC)
OUTPUT
FREQUENCY
Accel ramp per
selected Accel Time 
(n019 or n021 )
5.3   ACCEL/DECEL: S-CURVE CHARACTERISTICS