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03-74
Torque Compensation Low Pass Filter Time
VF
Control Mode
Settings
03-75
Slip Compensation Gain
VF
Control Mode
Settings
When the motor drive controls an asynchronous motor, the load and slip increase. Use this
parameter to correct the frequency and lower the slip to make the motor run near the
synchronous speed under the rated current. When the output current is larger than the motor
no-load current, the drive compensates the frequency according to the Pr.03-75 setting. If the
actual speed is slower than the expected speed, increase the setting and vice versa.
This is only valid in SVC mode.
03-76
Slip Compensation Low Pass Filter Time
VF
Control Mode
Settings
Setting Pr.03-74 and Pr.03-76 changes the response time for the compensation.
When you set Pr.03-74 and Pr.03-76 to 10 seconds, it maximizes the response time for the
compensation. If the settings are too low, the system may become unstable.
Speed Gain
03-80
Hunting Gain
VF
Control Mode
Settings
The motor has current wave motion under some specific conditions. You can improve this
situation by setting this parameter. You can set it to 0 for current wave motion in the high
frequency range or when running with PG. When the current wave motion happens in the low
frequency range, increase Pr.03-80.
03-83
PDFF Gain Value
Control Mode
Settings
After you estimate and set Pr.03-90=1 (auto-tuning), use Pr.03-83 / Pr.03-84 to reduce
overshoot. Adjust the PDFF gain value according to the actual situation.
In addition to traditional PI control, it also provides the PDFF function to reduce overshoot for
speed control.
1. Get system inertia
2. Set Pr.03-90 to 1
3. Adjust Pr.03-83 and Pr.03-84 (a larger value suppresses overshoot better). Adjust according
to the actual condition.
SVC
0.001–10.000 sec.
SVC
0.00–10.00
SVC
0.001–10.000 sec.
SVC
0.00–10.00
0: Disable
FOCPG
0–200%
8-03-11
Chapter 8 Descriptions of Parameter SettingsEB3000
Default: 0.020
Default: 0
Default: 0.500
Default: 2.50
FOCPM
Default: 30
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