Leadshine EL8-EC Series User Manual page 285

Position command filter function
To smoothen the position command after frequency divider/multiplier
Name
Pr2.22
Range
Activation
To set time constant of 1 time delay filter of position command.
To set time constant of 1 time delay filter, according to target velocity Vc square wave
command as show below.
Velocity
(RPM)
Vc
Vc 0.632
Vc 0.368
Usually applied when there is rather sharp acceleration which might cause motor overshoot or
undershoot. To smoothen command signal, reduces impact to machines and eliminate vibration.
If Pr2.22 is set too high, overall time will be lengthened.
Name
Pr2.23
Range
Activation
As shown below, when target velocity Vc square wave command reaches Vc, it becomes
trapezoidal wave after filtering.
Position
Velocity
command
(RPM)
before filtering
Vc
As shown below, when target velocity Vc trapezoidal command reaches Vc, it becomes S wave
after filtering.
Position command
smoothing filter
0~32767 Unit
Stop axis
Position
Position command
command
after filter
before filter
Position command
smoothing filter set
time(ms)
Pr2.22 x 0.1ms
Position command FIR filter
0~10000 Unit
Disable axis
Position command
after filtering
Position command
FIR filter set
time(ms)
Pr2.23 x 0.1ms
User manual of EL8-EC***F AC Servo
Mode
0.1ms Default
Filter
switching
time
Time
Mode
0.1ms Default
Filter
switching
time
Time
H CS
PP
M P
0 Index
H CS
PP
M P
0 Index
285
2222h
2223h