Pn220
Damping Frequency 4
Setting
0 to 2000
range
Set
the Damping Frequency
Measure the frequency of vibration at the end of the load and make the setting in units of 0.1 Hz.
Setting frequency is 1.0 to 200.0 Hz. The function is disabled if the setting is 0 to 0.9 Hz.
Refer to "10-5 Damping Control (P.10-21)" for more information on settings.
Pn221
Damping Filter 4 Setting
Setting
0 to 1000
range
First set the
increase the setting to increase operation speed. Normally, use a setting of 0.
Set value is restricted in the following manner.
Upper limit: Up to the
Lower limit:
Refer to "10-5 Damping Control (P.10-21)" for more information on settings.
Pn222
Position Command Filter Time Constant
Setting
0 to 10000
range
The Position Command Filter Time Constant is the first-order lag filter that is inserted after the
electronic gear ratio for the command input.
The Constant is used to reduce the stepping movement of the motor and achieve a smooth
operation when the electronic gear ratio is set in 10 times or greater.
It sets the first-order lag filter time constant, as shown below, for the square-wave command of
target speed Vc.
Speed
Target speed Vc
Vc×0.632
Vc×0.368
OMNUC G5-Series AC Servo Drives Users Manual (Built-in MECHATROLINK-II communications type)
Unit
4 to suppress vibration at the end of the load in damping control.
Unit
Damping
Frequency 4 (Pn220). Then reduce the setting if torque saturation occurs or
Frequency 4
Damping
frequency +
Damping
damping
Unit
Input position command
*1
*1
t
f
= (Pn222×0.1 ms)
t
f
*1 The actual process involves calculation error.
*2 If accumulated pulses remain within the filter after the filter set value has
been changed, etc., the motor may operate at a speed higher than the
command speed immediately after switching the filter.
8-3 Vibration Suppression Parameters
Default
0.1 Hz
setting
Default
0.1 Hz
setting
filter setting 100
Default
0.1 ms
setting
Position command after
the smoothing filter process
t
f
Filter switching
dwell time
Position Full closing
Data
0
B
attribute
Position Full closing
Data
0
B
attribute
Position Full closing
Data
0
B
attribute
Time
*2
8-24
8