8-11
8-2 Gain Parameters
OMNUC G5-SERIES AC SERVOMOTOR AND SERVO DRIVE USER'S MANUAL
8
Parameter Details
Set the time constant for the low pass filter (LPF) after speed detection to one of 6 levels (0 to 5).
Increasing the set value increases the time constant and decreases the noise generated by the
motor. Responsiveness, however, also decreases.
Normally, use the default set value.
The default setting is 126 for 200-V Servo Drives of 1 kW or higher, and 400-V Servo Drives.
Set the time constant for the first-order lag filter inserted into the torque command.
This parameter may be effective in suppressing vibration due to torsion resonance.
The default setting is 380 for 200-V Servo Drives of 1 kW or higher, and 400-V Servo Drives.
Set the responsiveness of the position control system for the second position loop.
The default setting is 180 for 200-V Servo Drives of 1 kW or higher, and 400-V Servo Drives.
Set the responsiveness of the second speed loop.
Set the second speed loop integral time constant.
Set the second speed feedback filter.
The default setting is 126 for 200-V Servo Drives of 1 kW or higher, and 400-V Servo Drives.
Set the second torque filter time constant.
The parameters from Pn105 to Pn109 are the gain and time constants to be selected when the
Gain Switching Input Operating Mode Selection (Pn114) is enabled.
The gains are switched according to the condition set in the Gain Switching Mode (Pn115, Pn120 and Pn124).
If the mechanical system inertia changes greatly or if you want to change the responsiveness depending on
whether the motor is rotating or being stopped, you can achieve the appropriate control by setting the gains
and time constants beforehand for each of these conditions, and switching them according to the condition.
This parameter is automatically changed by executing realtime autotuning function. To set it
manually, set the Realtime Autotuning Mode Selection (Pn002) to 0.
Pn103
Speed Feedback Filter Time Constant
Setting
range
0 to 5 Unit −
Default
setting
0
Power OFF
and ON
−
All
Pn104
Torque Command Filter Time Constant
Setting
range
0 to 2,500 Unit 0.01 ms
Default
setting
84 *
Power OFF
and ON
−
All
Pn105
Position Loop Gain 2
Setting
range
1 to 30,000 Unit 0.1/s
Default
setting
570 *
Power OFF
and ON
−
Pn106
Speed Loop Gain 2
Setting
range
1 to 32,767 Unit 0.1 Hz
Default
setting
1*
Power OFF
and ON
−
All
Pn107
Speed Loop Integral Time Constant 2
Setting
range
1 to 10,000 Unit 0.1 ms
Default
setting
10000
Power OFF
and ON
−
All
Pn108
Speed Feedback Filter Time Constant 2
Setting
range
0 to 5 Unit −
Default
setting
0
Power OFF
and ON
−
All
Pn109
Torque Command Filter Time Constant 2
Setting
range
0 to 2,500 Unit 0.01 ms
Default
setting
84 *
Power OFF
and ON
−
All