P04 Group Svpwm Control - Kruger Ecowatt Drive K120 Series Operation Manual

Ecowatt ® Drive K120 series

P04 group SVPWM control

Function
Name
code
V/F curve
P04.00 setting of
motor 1
Torque
P04.01 boost of
motor 1
Torque
boost
P04.02
cut-off of
motor 1
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: Multi-point V/F curve
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 loads
such as fans and water pumps. You can
adjust according to the characteristics of the
loads to achieve best performance.
5: Customized V/F (V/F separation); in this
mode, V can be separated from f and f can be
adjusted through
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
rated voltage and f
frequency.
Output voltage
Linear type
Square type
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
the low-frequency torque characteristics of
V/F.
Description
the frequency
is the motor
b
is the motor rated
b
Torque step-down V/F curve (power of 1.3)
Torque step-down V/F curve (power of 1.7)
Torque step-down V/F curve (power of 2.0)
Output frequency
. Torque boost can improve
b
-56-
Function parameter list
Default
0
setting
0.0%
20.0%
Modify
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