Astraada DRV-22 inverters Function Parameters
28
Function
code
Name
Detailed instruction of parameters
Default
value
Modify
selection of
vector control
P04 Group SVPWM control
P04.00
V/F curve
setting
These function codes define the V/F curve of Astraada
DRV-22 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
2: 1.3th power low torque V/F curve
3: 1.7th power low torque V/F curve
4: 2.0th 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 loads to get the best performance.
5:Customized V/F(V/F separation); in this mode, V 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
b
in the below picture is the motor rated voltage and
f
b
is the motor rated frequency.
0
◎
P04.01
Torque boost 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
b
.
Torque boost should be selected according to the load. The
bigger the load is, the bigger the torque is. Too big torque
boost is inappropriate because the motor will run with over
magnetic, and the current of the inverter will increase to add
the temperature of the inverter and decrease the efficiency.
When the torque boost is set to 0.0%, the inverter is
automatic torque boost.
Torque boost threshold: below this frequency point, the
torque boost is valid, but over this frequency point, the
torque boost is invalid.
The setting range of P04.01:0.0%:(automatic) 0.1%~10.0%
The setting range of P04.02:0.0%~50.0%
0.0%
○
P04.02
Torque boost
close
20.0%
○
P04.03
V/F
frequency point
1
When P04.00 =1, the user can set V//F curve through
0.00Hz
○
P04.04
V/F
voltage point 1
0.0%
○
P04.05
V/F
frequency point
2
0.00Hz
○
P04.06
V/F
0.0%
○
