Delta ASDA-A3 Series User Manual page 179

Operation Mode
Analog Speed command filter
The Analog Speed command filter helps to stabilize the motor operation when the analog input
signal (speed) changes rapidly.
6
The Analog Speed command filter smoothes the analog input signal. Its time program is the
same as the S-curve filter at normal speed. Also, the speed and acceleration curves are both
continuous. The above graph shows the curve of the Speed command and the motor speed
when you apply the Analog Speed command filter. In the diagram above, the slopes of the
Speed command in acceleration / deceleration are different. You can adjust the time setting
(P1.034, P1.035, and P1.036) according to the actual application to improve the performance.
Low-pass filter for speed commands
You usually use the low-pass filter to remove unwanted high-frequency response or noise so
that the speed change is smoother.
Refer to Chapter 8 for detailed descriptions of the relevant parameter.
Parameter
P1.006
6-18
(1) Analog Speed command; (2) Motor speed
Speed command smoothing constant (low-pass filter)
Speed command
Target speed
P1.006
Function
t
ASDA-A3