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Fuling Inverter User Manual - slidepdf.com
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Function
Code
Name
Setting Range
Default
Value
F1.24
Energy Conservation
Selection
0:No Operation
1:EnergyConservation
0
Function
Code
Name
Setting Range
Default
Value
F1.20
V/F curve setting
0 Linear V/F curve
：
1 square torque V/F curve
：
0
The setting 100.0% is corresponding to the rated output current.
0: Linear V/F curve. It is applicable to constant torque load.
1: 2.0 exponential V/Fc urve. It is applicable to variable torque load, such as blower, pump etc.
Fig. 6-6 V/F curvediagram
Torque Boost is mainly applied to less than cut-off frequency (F1.22). The V/F curve after boost is
shown in following figure. Torque booth can improve the low frequency torque performance of V/F control.
Based on the load, a torque should be chosen properly. For heavy load, increase the tor que boost, but
the torque boost should not be set too big, which will resul t in the motor operating at overexcitation and
that it could be overheated, and also the inverter output current is big, reducing efficiency.
When the torque boost is set as 0.0%, the inverter i s at automatic torque boost.
Torque boost cut-off frequency: below this frequency, torque boost is valid, and above this frequency
setting, torque boost is invalid.
When the motor is running in no-load or lower-load during,the inverter can
output voltage
by
adjust
automatically current kf the load
。
Note:This function is especially valid for variable torque load (such as fan and pump).
Fig. 6-7 Manual torque boost diagram
It sets up S1-S6, VI and CI terminals sample filtering time. In big interference situation, this parameter
should be increased in order to prevent mal operation.
- 4 5 -
- 4 6 -
The function code below F1.20~F1.24
are valid to V/F control (F0.00 1 ), but invalid to vector
control.
（
）
＝
Output Frequency f
Output Voltage (V)
f
c u t - o f f
V
b o o s t
V
b
f
b
b
f
b
V
b
f
3
/
1
Output Voltage (V)
Output Frequency f
Linear V/F curve
2.0 exponential
V/F curve
Setting this parameter can compens ate the motor speed change produced because of undertaking
loading while on V/F control, to increase the ri gidity of motor mechanical performance. This value
should be set as the motor rated slip frequenc y.
F2 Input and Output Terminal Function Parameters
F1.19
Upper torque limit setting
0.0 200.0%(inverter rated current)
～
150.0%
Function
Code
Name
Setting Range
Default
Value
F1.21
Torque boost
0.0% (auto)
：
0.1
30.0
％～
％
0
F1.22
Torque boost cut-off
0.0% 50.0% (relative to motor
rated frequency)
～
20.0%
Function
Code
Name
Setting Range
Default
Value
F1.23
V/F slip compensation limit 0.0 200.0%
～
100%
Function
Code
Name
Setting Range
Default
Value
F2.00
On-off signal filter times
1 10
～
5
Function
Code
Name
Setting Range
Default
Value
