The User Manual of JAC200 Series General Frequency Converter
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Fig. 6-3 Manual torque boost diagram
F3-03
Frequency Point F1 of
multi-point VF
Default value
0.00Hz
Set range
0.00Hz
～
F3-05
F3-04
Voltage Point V1 of
multi-point VF
Default value
0.0%
Set range
0.0%
～
100.0%
F3-05
Frequency Point F2 of
multi-point VF
Default value
0.00Hz
Set range
F3-03
～
F3-07
F3-06
Voltage Point V2 of
multi-point VF
Default value
0.0%
Set range
0.0%
～
100.0%
F3-07
Frequency Point F3 of
multi-point VF
Default value
0.00Hz
Set range
F3-05 ~ Rated frequency of the motor (F1-04)
Note: The rated frequency of Motor 2\3\4 is
A2-04\A3-04\A4-04
F3-08
Voltage Point V3 of
multi-point VF
Default value
0.0%
Set range
0.0%
～
100.0%
Six parameters of F3-03~ F3-08 define multi-stage V/F curve.
The multi-point V/F curve shall be set according to load characteristics of the motor. It is noted that three
voltage points and three frequency points must be in the following relations: V1
＜
V2
＜
V3, F1
＜
F2
＜
F3.
The multi-point VF curve setting diagram is as shown in Fig. 6-4.
Too high voltage in low frequency may result in motor overheat and even damage due to overheat and the
frequency converter may get involved in over-current speed loss or over-current protection.
