INVT Goodrive3000 Series Operation Manual page 106

Goodrive3000 series medium voltage VFD
of the maximum output voltage V
P04.02 defines the percentage of closing frequency of manual torque to f
the low frequency torque feature of V/F.
Torque boost should be selected according to the load. When the load is big, boost the torque. But too big
torque boost is inappropriate because the motor will run with overexcitation, the output current of the VFD
will increase, the heat of the motor will be high and the efficiency will decrease.
When the torque boost is set to 0.0%, the VFD is in automatic torque boost.
Torque boost threshold: below the frequency point, the torque boost is effective, but over the set
frequency, the torque boost is ineffective.
Function
Name
code
Motor 1 V/F
P04.03
frequency point 1
Motor 1 V/F
P04.04
voltage point 1
Motor 1 V/F
P04.05
frequency point 2
Motor 1 V/F
P04.06
voltage point 2
Motor 1 V/F
P04.07
frequency point 3
Motor 1 V/F
P04.08
voltage point 3
When P04.00=1 (multi-dot V/F curve), set the V/F curve by P04.03–P04.08.
The V/F curve is usually set according to the load feature of the motor.
Note: V1<V2<V3, f1< f2< f3. Too high low frequency voltage may cause motor overheat or burnout, VFD
overcurrent speed loss or overcurrrent protection.
.
b
Output voltage
v
b
v
boost
f
Cut-off
Description
0.00Hz–P04.05
0.0%–110.0% (Rated voltage of
motor 1)
P04.03– P04.07
0.0%–110.0% (Rated voltage of
motor 1)
P04.05–P02.02 (Rated frequency of
motor 1)/ P04.05–P02.16 (Rated
frequency of motor 1)
0.0%–110.0% (Rated voltage of
motor 1)
-101-
Goodrive3000 inverter
. The torque boost can improve
b
Output
frequency
f
Setting range
0.00–P04.05
0.0–110.0
P04.03–P04.07
0.0–110.0
P04.05–P02.02
0.0–110.0
Default
0.00Hz
00.0%
00.00Hz
00.0%
00.00Hz
00.0%