HV350 Mini Frequency Inverter User Manual
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In above formular
，
V is motor rated voltage defined by P3.01 ; I is motor rated current
defined by P3.02 ; Pis the motor rated frequency defined by P3.03.
These parameters are reference parameters for vector control, which will affect control
performance directly.
P3.11 Reservation
P4 Dedicatd function for V/F control
P4.00 V/F curve control mode
Setting range
：
0
～
4
0: linear voltage/frequency mode (constant torque load), shown as curve 0 in Fig. 6-11;
1: Square voltage/frequency mode, shown as curve 1 in Fig. 6-11;
2: 1.5 times torque/frequency mode, shown as curve 2 in Fig. 6-11;
3: 1.2 times torque/frequency mode, shown as curve 3 in Fig. 6-11;
4: User defined V/F curve.
Fmax
output
voltage
output frequency
0
3
2
1
Fig. 6-11 V/F curve
P4.01 Base voltage
Setting range: 0~440V
P4.02 Base frequency
Setting range: 10.00~ 400.0Hz
Basic V/F characteristic of HV350 series is shown in Fig. 6-12. Base
Frequency F
BASE
is the
output frequency corresponding to the rated output voltage U
N
. Its range is 10 to 400Hz.
Generally, F
BASE
should be selected according to rated frequency of the motor. In some special
case, it can be selected according to requirement. In this condition, both motor V/F characteristic
and output torque should be considered.
