Rated voltage
of
asynchronous
motor
Note: When resetting the rated power of the motor
(P02.01), initialize the motor parameter of P02.02–P02.10.
Rated current
of
asynchronous
motor
These function codes define the V/F curve of motor to meet the need of different
loads.
0: Straight line V/F curve, applying to the constant torque load
1: Multi-dots V/F curve
2: 1.3th power torque-stepdown V/F curve
3: 1.7th power torque-stepdown V/F curve
4: 2.0th power torque-stepdown V/F curve
Curves 2–4 apply to the torque loads such as fans and water pumps. Users can
adjust according to the features of the loads to get the best performance.
5: Customized V/F (V/F separation) in this mode, V can be separated from f and f
can be adjusted through the frequency given channel set by P00.06 or the voltage
given channel set by P04.27 to change the feature of the curve.
Note: Vb in the below picture is the motor rated voltage and fb is the motor rated
frequency.
•
Torque boost is for the output voltage for the features of low frequency torque.
P04.01 is for the Max. output voltage Vb.
•
P04.02 defines the percentage of closing frequency of manual torque to fb.
•
Torque boost should be selected according to the load. The bigger the load is, the
bigger the torque is. Too big torque boost is inappropriate because the motor will
run with over magnetic and the current of the pump controller will increase to add
the temperature of the pump controller and decrease the efficiency.
•
When the torque boost is set to 0.0%, the pump controller is automatic torque
boost.
•
Torque boost threshold: below this frequency point, the torque boost is valid, but
over this frequency point, the torque boost is invalid.
Setting range of P04.01: 0.0%:(automatic) 0.1%–10.0%
Setting range of P04.02: 0.0%–50.0%
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