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Parameter description
Through setting the proportional coefficient of speed regulator and integration time, you can adjust
vector control speed dynamic response characteristic.
Increasing the proportional gain, reducing the integration time can accelerate the dynamic response
of the speed loop. However, the proportional gain is too large or the integral time too small may cause the
system to vibrate. Recommend adjustment method:
If the factory parameters can not meet the requirements, then the value of the parameter in the
factory on the basis of fine-tuning. Increase the proportional gain first to ensure that the system does not
oscillate; then decrease the integration time, the system has quick response characteristics and small
overshoot.
Note: As PI parameters are set incorrectly, it may cause large overshoot speed. Even when students
fall overshoot overvoltage fault.
Vector control slip gain
P2-06
Setting range
Speed sensorless vector control This parameter is used to adjust the steady speed precision motor:
When the motor load is low to increase the speed parameter, vice versa.
For speed sensor vector control, this parameter can also adjust the load of the inverter output current.
Speed loop filter time
P2-07
Setting range
In vector control mode, the speed loop regulator output torque current command, the parameters for
the torque command filter. This parameter is generally no need to adjust the speed fluctuations that may
be appropriate to increase the filtering time; If the motor oscillation occurs, it should be appropriate to
reduce this parameter.
Speed loop filter time constant is small, the output torque of the drive may be volatile, but the
response speed is fast.
Vector control over
P2-08
Setting range
During the deceleration, the over-excitation control bus voltage rise can be suppressed to avoid
overvoltage fault. Greater the over excitation gains, stronger the suppression has effect.
For conditions that in the inverter deceleration process, it is easier to be over-pressured and sounds
alarm, you need to improve the over excitation gain. But if excitation gain is too large, easily lead the
output current to increase; you need to weigh in the application.
For the case of small inertia, deceleration of the motor voltage rise does not appear, it is
recommended that the over excitation gain is 0; For braking resistance of the occasion, it is also
suggested that over-excitation gain is set to 0.
Speed control mode torque limit source
P2-09
Setting range
Torque limit speed control mode digital set
P2-10
Setting range
In speed control mode, the maximum value of the inverter output torque is controlled by the torque
limit source.
P2-09 is used to select the source to set the speed limit, when the via analog, pulse, communication
settings, 100% corresponds to the appropriate setting P2-10, P2-10 and 100% of the inverter rated torque.
Specification of high-performance vector convertor
Factory
50%～200%
Factory
0.000s～0.100s
Factory
0～200
Factory default
0
F2-10
1
AI1
2
AI2
3
AI3
4
PULSE Setting
5
Communication Preferences
Factory default
0.0%～200.0%
- 80 -
100%
0.000s
64
0
150.0%
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