Chapter 6 Control Modes of Operation|ASDA-A&A+ Series
6-18 Revision April 2009
Analog Speed Command S-curve Filter
ASDA-A and ASDA-A+ series servo drives also provide Analog Speed Command S-curve Filter for the
smoothing in response to a sudden analog input signal.
Speed (rpm)
3000
-3000
0
132465798
Time (sec)
Motor Torque
Analog speed command
The analog speed command S-curve filter is for the smoothing of analog input signal and its function is
the same as the S-curve filter. The speed and acceleration curve of analog speed command S-curve
filter are both continuous. The above figure shows the curve of analog speed command S-curve filter
and the users can see the ramp of speed command is different during acceleration and deceleration.
Also, the users can see the difference of input command tracking and can adjust time setting by using
parameter P1-34, P1-35, P1-36 to improve the actual motor performance according to actual condition.
Analog Speed Command Low-pass Filter
Analog Speed Command Low-pass Filter is used to eliminate high frequency response and electrical
interference from an analog speed command and it is also with smoothing function.
Relevant parameters:
P1 - 06
SFLT
Accel / Decel Smooth Constant of Analog Speed
Command (Low-pass Filter)
Communication Addr.: 0106H
Default: 0 Related Section:
Applicable Control Mode: S Section 6.3.3
Unit: ms
Range: 0 ~ 1000 (0: Disabled)
NOTE
1) If the setting value of parameter P1-06 is set to 0, it indicates the function of this parameter
is disabled and the command is just By-Pass.
SFLT
Ta r ge t S p e e d
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Call 1(800)985-6929 for Sales
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