6 Parameter Description
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189
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F2-00 and F2-01 are PI regulation parameters when the running frequency is smaller
than the value of F2-02 (Switchover frequency 1).
F2-03 and F2-04 are PI regulation parameters when the running frequency is larger
than the value of F2-05 (Switchover frequency 2).
If the running frequency is between F2-02 and F2-05, the speed loop PI parameters are
obtained from the weighted average value of the two groups of PI parameters (F2-00,
F2-01 and F2-03, F2-04), as shown in Figure 6-1.
Frequency
reference
PI parameters
F2-00
F2-01
F2-03
F2-04
F2-02 F2-05
Relationship between running frequencies and PI parameters
The speed dynamic response characteristics in vector control can be adjusted by
setting the proportional gain and integral time of the speed regulator. To achieve a
faster system response, increase the proportional gain and reduce the integral time.
Be aware that this may lead to system oscillation.
The recommended adjustment method is as follows:
If the default setting cannot meet the requirements, make proper adjustment.
then reduce the integral time to ensure that the system has quick response but small
overshoot.
If both F2-02 (Switchover frequency 1) and F2-05 (Switchover frequency 2) are 0, only
F2-03 and F2-04 are valid.
Function
Code
Name Setting Range Default Unit Property
F2-06
Current loop proportional gain
Kp
10 to 500 60 -
★
F2-07 Current loop integral gain Ki 10 to 500 30 -
★
These two parameters are regulation parameters for the torque axis current loop.
These parameters are used as the torque axis current regulator in vector control. The
best values of the parameters matching the motor characteristics are obtained by
means of motor auto-tuning. You need not modify them generally.
Function
Code
Name Setting Range Default Unit Property
F2-08 Torque upper limit 0.0 to 200.0 200.0 %
★
It is used to set the torque upper limit of the motor. The value 100% corresponds to
the rated output torque of the applicable motor.
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