INVT Goodrive35 Series Operation Manual page 75

Goodrive35 Series Closed-loop Vector Control VFD
Functio
Name
n code
P04 Group SVPWM control
Motor 1 V/F curve
P04.00
setting
Torque boost of
P04.01
motor 1
Torque boost close
P04.02
of motor 1
Detailed instruction of parameters
These function codes define the V/F curve of
Goodrive35 motor 1 to meet the need of different
loads.
0: Straight line V/F curve; applying to the constant
torque load
1: Multi-dots V/F curve
th
2: 1.3 power low torque V/F curve
th
3: 1.7 power low torque V/F curve
th
4: 2.0 power low torque V/F curve
Curves 2–4 apply to the torque loads such as fans
and water pumps. Users can adjust according to the
features of the
energy-consuming effect.
5: Customized V/F (V/F separation); on this mode, V
and F can be separated from f and f can be adjusted
through the frequency given channel set by P00.06
or the voltage given channel set by P04.27 to
change the feature of the curve.
Note: V in the below picture is the motor rated
b
voltage and f is the motor rated frequency.
b
Output voltage
Linear type
Square type
Torque boost to the output voltage for the features of
low frequency torque. P04.01 is for the Max Output
voltage V .
b
P04.02 defines the percentage of closing frequency
of manual torque to f
Torque boost should be selected according to the
load. The bigger the load is, the bigger the boost is.
Too big torque boost is inappropriate because the
motor will run with over-magnetic, and the current of
the VFD will increase to raise the temperature of the
VFD and decrease the efficiency.
When the torque boost is set to 0.0%, the VFD is
68
loads to achieve
Torque step-down V/F curve (1.3
Torque step-down V/F curve (1.7
Torque step-down V/F curve (2.0
Output frequency
.
b
Function parameters
Default Modif
value
a best
0
th
order)
th
order)
nd
order)
0.0%
20.0%
y
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