INVT Goodrive300 Series Operation Manual page 70

Goodrive300 Series VFD
Function
Name
code
Torque boost
P04.01
of motor 1
Torque boost
P04.02 close of motor
P04.03 V/F
Detailed instruction of parameters
the feature of the curve.
Note: V in the below picture is the motor rated
b
voltage and f
Output voltage
V
b
Linear type
Boost compensation can be given to the output
voltage for compensating 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
can improve the features of low frequency torque
of V/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
automatic torque boost.
1
Torque boost threshold: under the threshold, the
torque boost is valid, but over the threshold, the
torque boost is invalid.
Output voltage
V
b
V
boost
Setting range of P04.01: 0.0%: (automatic)
0.1%–10.0%
Setting range of P04.02: 0.0%–50.0%
When P04.00 =1, the user can set V//F curve
is the motor rated frequency.
b
Torque-stepdown characteristics V/F curve (1.3 order)
Torque-stepdown characteristics V/F curve (1.7 order)
Torque-stepdown characteristics V/F curve (2.0 order)
Square type
Output frequency
f
b
f
Cut-off
65
Function parameters
Default
. Torque boost
b
Output frequency
f
b
Modify
value
0.0%
○
20.0%
○
0.00Hz
○