INVT Goodrive 310-UL Series Operation Manual page 67

GD310-UL series VFD
Function
Name
code
Torque boost
P04.01
of motor 1
Torque boost
P04.02 close of motor
1
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); in this mode, V
and F can be separated from adjusted through the
frequency given channel set by P00.06 or voltage
given channel set by P04.27 to change the curve
feature.
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
automatic torque boost.
Torque boost threshold: under the threshold, the
torque boost is valid, but over the threshold, the
torque boost is invalid.
Output voltage
b
boost
Setting range of P04.01: 0.0%:
(automatic) 0.1%–10.0%
Setting range of P04.02: 0.0%–50.0%
Description
loads to achieve
Torque-down V/F curve (power of 1.3)
Torque-down V/F curve (power of 1.7)
Torque-down V/F curve (power of 2.0)
Output frequency
.
b
Output
frequency
Cut-off
-59-
Function parameter
Default
Modify
value
a best
0.0%
20.0%
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