The User Manual of JAC200 Series General Frequency Converter
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Note: integral controller of current loop doesn’t adopt integral time as dimension, but set integral gain
directly. If the set for current loop PI gain is oversize, and can make the whole control loop to be vibrated.
So if current vibration or torque fluctuation is bigger, you can reduce the PI proportional gain or integral
gain by hand.
F2-20
Maximum flux weakening
current
Default value
105%
Set range
100%
～
110%
F2-21
Automatic regulation gain
of flux weakening
Default value
100%
Set range
50%
～
200%
This group of parameter is used to set flux weakening control of synchronous motor.
If flux weakening mode is set to automatic adjustment, the optimal demagnetizing current will be selected
automatically, but the dynamic performance of the system will not be influenced or get unstable.
Group F3 V/F Control parameter
This group of function code is only valid for V/F control but not valid for vector control.
V/F control is suitable for in the field with universal load such as fan and water pump or one frequency
converter with multiple motors or when the power of frequency converter is much different from the motor
power.
F3-00
V/F curve setting
Default value
0
Set range
0
Linear V/F
1
Multi-point V/F
2
Square V/F
3
1.2
th
power V/F
4
1.4
th
power V/F
6
1.6
th
power V/F
8
1.8
th
V/F
9
Reserved
10
VF complete separation mode
11
VF semi-separation mode
0: Linear V/F, suitable for general constant torque load.
1: Multi-point V/F, suitable for the special load such as dewatering machine and centrifugal machine. In this
case, it is possible to get any VF relation curve by setting F3-03~F3-08 parameters.
2: Square V/F, suitable for centrifugal load such as fan and water pump.
