KE300A Inverter Parameter Description
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f1:Manual torque boost voltage
fb:Rated running frequency
Vb:Maximum output voltage
V1:Manual torque boost voltage
fb
f1
V1
Vb
Output frequency
Output voltage
Figure 6-3 Manual torque boost diagram
P3-03
V/F frequency point 1
Factory default
0.00Hz
Setting range
0.00Hz ~ P3-05
P3-04
V/F voltage point 1
Factory default
0.0%
Setting range
0.0% ~ 100.0%
P3-05
V/F frequency point 2
Factory default
0.00Hz
Setting range
P3-03 ~ P3-07
P3-06
V/F voltage point 2
Factory default
0.0%
Setting range
0.0% ~ 100.0%
P3-07
V/F frequency point 3
Factory default
0.00Hz
Setting range
P3-05 ~ P1-04 (motor rated power)
P3-08
V/F voltage point 3
Factory default
0.0%
Setting range
0.0% ~ 100.0%
Multi-step V/F curve is defined by P3-03 to P3-08.
The curve of multi point V/F is generally set according to the load characteristics of the motor.
Caution: V1<V2<V3 and F1<F2<F3. The voltage corresponding to low frequency should not be set
too high, otherwise it may cause motor overheat or inverter fault.
Figure 6-4 V/F curve setting diagram