Version 1.0 09/08/2017
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57
Code
Parameter name
Setting range
Factory default
Change
F4.06
V/F voltage point 2
0.0% to 100.0%
0.0%
★
F4.07
V/F frequency point 3
F4.05 to b0.04 (rated motor frequency)
0.00Hz
★
F4.08
V/F voltage point 3
0.0% to 100.0%
0.0%
★
F4.03 to F4.08 six parameters are used to define multi-point V/F curve.
The multi-point V/F curve is set according to the load characteristics of motor, please be noted that the relationship
between three voltage points and three frequency points must be meet: V1 <V2 <V3, F1 <F2 <F3. The setting of multi-point
V/F curve is as shown in below figure.
In the sate of low frequency, if the voltage is set to a higher value, which may cause motor overheating even burned, the
inverter may appear overcurrent stall or overcurrent protection.
V1 to V3: voltage percentage of the 1st to 3rd stages of multi-speed; F1 to F3: frequency percentage of the 1st to 3rd stages
of multi-speed; Vb: motor rated voltage; Fb motor rated operating frequency.
F4.09
V/F slip compensation limit
0.0 to 200.0%
0.0%
☆
This parameter can compensate for the changes of motor speed due to the load is applied during V/F control, so as to
improve the mechanical properties of the motor hardness. This value should be set to the rated slip frequency of motor,
the rated slip frequency is calculated as follows:
Rated slip frequency = FB-n * p/60
Where: FB is for the motor rated frequency, its corresponding function code is b0.04, n is the motor rated speed, its
corresponding function code b0.05, P is the number of motor pole pairs.
5-2-6.
F5 Group - Vector control group
F5 function code is only valid to vector control, invalid to V/F control
Code
Parameter name
Setting range
Factory default
Change
F5.00
Speed loop proportional gain 1
0 to 100
20
☆
F5.01
Speed loop integral time 1
0.01 to 10.00s
0.50 s
☆
F5.02
Switching low point frequency
0.00Hz to F5.05
5.00Hz
☆
F5.03
Speed loop proportional gain 2
0 to 100
15
☆
F5.04
Speed loop integral time 2
0.01 to 10.00s
1.00 s
☆
F5.05
Switching high point frequency
F5.02 to F0.08 (maximum output
frequency)
10.00Hz
☆
The above parameters apply only to the vector control mode. Below switching frequency 1 (F5.02), speed loop PI
parameters: F5.00 and F5.01. Above switching frequency 2 (F5.05), speed loop PI parameters: F5.03 and F5.04. Between
the two, PI parameters are obtained by the linear changes of two sets of parameters, as shown below:
频率%
电压%
Vb
V3
V2
V1
F1
F2
F3 Fb
Voltage%
Vb
Frequency