FOTEK GD20-004G-2, Руководство по эксплуатации

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Goodrive20 Series VFD Function parameter list
-53-
Function
code
Name Description Default Modify
5: Customized V/F (V/F separation); in this
mode, V can be separated from f and f can
be adjusted through the frequency setting
channel set by P00.06 or the voltage setting
channel set by P04.27 to change the
characteristics of the curve.
Note: In the following figure, V
b
is the motor
rated voltage and f
b
is the motor rated
frequency.
Output voltage
Output frequency
Linear type
Square type
Torque step-down V/F curve (1.3 order)
Torque step-down V/F curve (1.7 order)
Torque step-down V/F curve (2.0 order)
P04.01
Torque
boost
In order to compensate for low-frequency
torque characteristics, you can make some
boost compensation for the output voltage.
P04.01 is relative to the maximum output
voltage V
b.
P04.02 defines the percentage of cut-off
frequency of manual torque boost to the
rated motor frequency f
b.
Torque boost can
improve the low-frequency torque
characteristics of SVPWM.
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
over-excitation, which may cause increased
output current and motor overheating, thus
decreasing the efficiency.
When torque boost is set to 0.0%, the VFD is
automatic torque boost.
Torque boost cut-off threshold: Below this
frequency threshold, the torque boost is
valid, exceeding this threshold will invalidate
torque boost.
0.0%
○
P04.02
Torque
boost
cut-off
20.0%
○