INVT Goodrive170-PV Series Operation Manual page 31

Goodrive170-PV Series Solar Pump Inverter
P04 group Space voltage vector control
Function
code
P04.00
P04.01 Torque boost In order to compensate for low-frequency
Torque boost
P04.02
Name
This group of function code defines the V/F
curve of motor 1 to meet the needs of
different loads.
0: Straight-line V/F curve, applicable to
constant torque loads
1: Reserved
2: Torque-down V/F curve (power of 1.3)
3: Torque-down V/F curve (power of 1.7)
4: Torque-down V/F curve (power of 2.0)
Curves 2–4 are applicable to the torque
V/F curve
loads such as fans and water pumps. You
setting
can adjust according to the characteristics
of the loads to achieve best performance.
5: Reserved
Note: In the following figure, V
motor rated voltage and f
rated frequency.
torque characteristics, you can make some
boost compensation for the output voltage.
P04.01
voltage V
P04.02
frequency of manual torque boost to the
rated motor frequency f
cut-off improve
characteristics in space voltage vector
control mode.
You need to select torque boost based on
the load. For example, larger load requires
larger torque boost, however, if the torque
boost is too large, the motor will run at
Description
Output voltage
Torque step-down V/F curve (1.3 order)
Linear type
Torque step-down V/F curve (1.7 order)
Torque step-down V/F curve (2.0 order)
Square type
Output frequency
is relative to the max. output
.
b
defines the percentage of cut-off
the low-frequency
-27-
Function parameter list
is the
b
is the motor
b
. Torque boost can
b
torque
Default Modify
◎
4
○
2.0%
○
20.0%