LS ELECTRIC L7NHF Series, User Manual

Page: 132 / 409

5. Drive Application Functions
5-24
5.5
Position Control Settings
5.5.1
Position Command Filter
You can apply filters to position commands to operate the drive more smoothly. For filtering, you can
set position command filter time constant (0x2109) using the primary low pass filter and position
command average filter time constant (0x210A) using the movement average.
You can use a position command filter in the following cases.
(1) When the electric gear ratio is x10 or above
(2) When the acceleration/deceleration profile cannot be generated from the upper level controller
Speed
Time
Command before
filtering
Command after
filtering
Command before
filtering
Command after
filtering
Target
velocity
Target
velocity *
63%
Target
velocity *
37%
0x2109 0x2109
Position command filter using position command filter time constant (0x2109)
Time
Speed
Time
Command before
filtering
Command after
filtering
Command before
filtering
Command after
filtering
0x210A 0x210A
0x210A
0x210A
Speed
Command before
filtering
Command after
filtering
Position command filter using position command average filter time constant (0x210A)