- 115 -
Cutoff frequency of torque boost: Under this frequency, the torque boost is
enabled. If it exceeds this setup frequency, the torque boost is inenabled.
Refer to Fig.6-3 for details.
Fig.6-3 Schematic Diagram for Manual Torque
V/F frequency F1
Factory default
value
0.00Hz
F3-03
Setup range 0.00Hz ~ rated motor frequency
V/F voltage V1
Factory default
value
0.0%
F3-04
Setup range 0.0%~ 100.0%
V/F frequency F2
Factory default
value
0.00Hz
F3-05
Setup range V1 ~ rated motor frequency
V/F voltage V2
Factory default
value
0.0%
F3-06
Setup range F1 ~ 100.0%
V/F frequency F3
Factory default
value
0.00Hz
F3-07
Setup range V2 ~ rated motor frequency
V/F voltage V3
Factory default
value
0.0%
F3-08
Setup range F2 ~ 100.0%
Six parameters of F3-03 to F3-08 define MS V/F curve.
The setup value of V/F curve is generally set in accordance with the load
characteristics of the motor.
Note: V1<V2<V3 and F1<F2<F3. In case of low frequency, higher setup
Output Voltage
Output
Frequency
Manual Torque Boost Voltage
Maximum Output Voltage
Cutoff Frequency of Torque Boost
Rated Running Frequency