V/F Control Group：p3.00-P3.15 - HNC Electric HV590 Series User Manual

If current oscillation or torque fluctuation is relatively big, users could manually turn down the PI
proportional gain or integration gain.
5.5 V/F control group：P3.00-P3.15
This function group is only valid for V/F control mode.
V/F control is suitable for general load such as draught fan, pump. It is also appropriate for
situations where one inverter driving multiple motors or there is big difference between inverter
power and motor power.
Code Description/Display
P3.00
V/F curve setup
This parameter defines the V/F setup mode so as to meet the requirements of various load characteristics.
0：Beeline V/F
It is suitable for the ordinary constant torque load.
1：Multi-point V/F
It is suitable for special loads such as dehydrator and centrifugal machine. It can be self-defined.
Refer to the description of functional codes of Group F1-07 to F1-12 for details.
2：Square V/F
It is suitable for centrifugal loads such as fan and pump.
3~8：These are relation curve situated between beeline V/F curve and square V/F curve.
9：Reserved
10：VF complete separation mode
Inverter output frequency and output voltage are mutually independent. Output frequency is decided
by frequency source,while output voltage is decided by P3.13(VF separation voltage source).
VF complete separation mode is generally applied in induction heating, inverter power supply, torque
motor control fields etc.
11：VF semi separation mode
In this case, V is proportional to F. Proportional relationship can be set by the voltage source
P3.13. The relationship between V&F is connected with P1 group(motor rated voltage and rated
frequency).
Suppose that voltage source input is X (X from 0~100%), the V,F relationship is：
V/F=2*X*(Motor rated voltage)/(Motor rated frequency)
P3.01
Torque boost value
Torque boost cut-off frequency
P3.02
Section V. Parameter Function Table
Beeline V/F
Multi-point V/F
Square V/F
Power of 1.2 V/F
Power of 1.4 V/F
Power of 1.6 V/F
Power of 1.8 V/F
Reserved
VF complete separation mode
VF semi separation mode
0.0%~30%
0.00~Maximum frequency
55
Setting Range
Factory Change
Setting Limite
0
1
2
3
4
★
0
6
8
9
10
11
★
-
★
50.00Hz