Setting The Torque Reference Filter Time Constant; Notch Filter - Omron XTRADRIVE User Manual

XtraDrive User Manual
6.2.8.

Setting the Torque Reference Filter Time Constant

If there is machine vibration, which may be caused by the servo drive,
try adjusting the filter time constant in Pn401. This may stop the
vibration.
Parameter
Pn401
The constant above is the filter time constant of the torque reference to
be set in the servo amplifier. The smaller the value, the faster the speed
control response will be. There is, however, a limit, depending on
machine conditions.
In order to find the optimal value of the torque filter, repeat steps 1 and
2 of previous section for each new try of the torque filter. Finally select
the optimal torque filter value as the one who results in the highest Kv.
6.2.9.

Notch Filter

Vibration in the machine can sometimes be eliminated by using a notch
filter for the frequency at which the vibration is occurring.
Parameter
Pn408.0
This parameter can be set to enable the notch filter.
Use the following parameter to set the frequency at which the filter is
effective.
Parameter
Pn409 Notch Filter Frequency
Pn40A Notch Filter Width
Signal
Torque Reference Setting Range: 0 to 65535
Filter Time Constant Default Setting: 100
Signal
Notch Filter Selection
Pn408.0 Setting
0
1
2
3
Signal
Setting Range: 50 to 2000
Default Setting: 2000
Setting Range: 70 to 1000
Default Setting: 70
6-9
Chapter 6: Servo Adjustment
Setting
(x 0.01ms)
Setting
Default Setting: 0
Result
None.
Enables notch filter for torque reference.
Use net notch (not implemented)
Use both.
Setting(Hz)
Application
Speed/Torque Control,
Position Control
Application
Speed/Torque Control,
Position Control
Application
Speed/Torque Control,
Position Control
Speed/Torque Control,
Position Control