Powtran pi130 series User Manual

Chapter 5 Function parameter
62
Code
Parameter name
Setting range
Factory
default
Change
F4.00
V/F curve setting
Linear V/F curve
0
0
★
Multi-point V/F curve
1
Square V/F curve
2
1.75th power V/F curve
3
1.25th power V/F curve
4
0: Linear V/F curve Suitable for ordinary constant torque load.
1: multi-point V/F curve, suitable for dehydrator, centrifuge and other special loads
Any V/F relationship curves can be obtained by setting parameters F4.03 to F4.08.
2: power V/F curve Suitable for fans, pumps and centrifugal loads.
3 to 4: V/F relationship curve between linear V/F and square V/F.
F4.01
Torque boost
0.0%: (Automatic torque
boost) 0.1% to 30.0%
0.0%
☆
F4.02
Torque boost cut-off
0.0% to 50.0% (relative to
rated motor frequency)
20.0%
★
Torque boost is mainly used in below cutoff frequency (F4.02), V/F curve after
boosting is as shown below, the torque boost can improve the characteristics of V/F
frequency torque.
Select the amount of torque according to the appropriate load size, the large load can
increase the boost, but the boost value should not be set too large, the torque boost is
too large, the motor will run over excitation, the inverter output current increases, the
motor heats up, and the efficiency is reduced.
When the torque boost is set to 0.0%, the inverter will perform automatic torque boost.
Torque boost cut-off point: below this frequency point, the torque boost is valid,
conversely invalid.
Linear type
1.25th power down torque V/F curv
e
1.75th power down torque V/F curve
2.0th power down torque V/F curve
Output frequency (f)
Output
voltage (V)
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Powtran pi130 series Specifications

General

Brand	Powtran
Model	pi130 series
Category	Inverter
Language	English