INVT GD3000-01-055G-12, Руководство по эксплуатации

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Goodrive3000 series medium voltage VFD Goodrive3000 inverter
-101-
of the maximum output voltage V
b
.
P04.02 defines the percentage of closing frequency of manual torque to f
b
. The torque boost can improve
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.
Output voltage
Output
frequency
Cut-off
boost
b
f
f
v
v
Function
code
Name Description Setting range Default
P04.03
Motor 1 V/F
frequency point 1
0.00Hz
–P04.05
0.00
–P04.05
0.00Hz
P04.04
Motor 1 V/F
voltage point 1
0.0%
–110.0% (Rated voltage of
motor 1)
0.0
–110.0
00.0%
P04.05
Motor 1 V/F
frequency point 2
P04.03
– P04.07
P04.03
–P04.07
00.00Hz
P04.06
Motor 1 V/F
voltage point 2
0.0%
–110.0% (Rated voltage of
motor 1)
0.0
–110.0
00.0%
P04.07
Motor 1 V/F
frequency point 3
P04.05
–P02.02 (Rated frequency of
motor 1)/ P04.05
–P02.16 (Rated
frequency of motor 1)
P04.05
–P02.02
00.00Hz
P04.08
Motor 1 V/F
voltage point 3
0.0%
–110.0% (Rated voltage of
motor 1)
0.0
–110.0
00.0%
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.