V/F Control Parameters; V/F Curve Selection; Output Voltage Percentage; Torque Boost Cut-Off Frequency - Veichi AC300 Series Technical Manual

AC300 Series Vector Control Inverter Manual
When the function code [F07.10], [F07.11] is set to 0, the Max speed limit would be set by [F07.12], [F07.13].And
protect in case of initial debugging torque function default 100.0% as the seldom speed setting.

8.9 V/F Control Parameters

F08.00

V/F curve selection

Setting range:0-11
V/F curve selection: used to select the V/F curve types to meet different load requirements.
0: Beeline
1-9: 1.1-1.9 respectively VF power curve, as shown below;
10: VF square curve;
11: custom VF curve; see [F08.01-F08.10];
VF default linear curve for most common situations; multi-idempotent curve and square VF curve are generally used
for VF fans or pumps to reduce the high-frequency current to achieve energy savings.
F08.01 Self-setting voltage V1 Setting range: 0.0-100.0%
F08.02 Self-setting frequency F1 Setting range: 0.00-max frequency
F08.03 Self-setting voltage V2 Setting range: 0.0-100.0%
F08.04 Self-setting frequency F2 Setting range: 0.00-max frequency
F08.05 Self-setting voltage V3 Setting range: 0.0-100.0%
F08.06 Self-setting frequency F3 Setting range: 0.00-max frequency
F08.07 Self-setting voltage V4 Setting range: 0.0-100.0%
F08.08 Self-setting frequency F4 Setting range: 0.00-max frequency
F08.09 Self-setting voltage V5 Setting range: 0.0-100.0%
F08.10 Self-setting frequency F5 Setting range: 0.00-max frequency
Function Parameter Specifications
Factory set: 0
Factory set: 3.0%
Factory set: 1.00Hz
Factory set: 208.0%
Factory set: 10.00Hz
Factory set: 55.0%
Factory set: 25.00Hz
Factory set: 708.0%
Factory set: 37.50Hz
Factory set: 100.0%
Factory set: 50.00Hz
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AC300 Series Vector Control Inverter Manual
Self-setting V/F curve:
User sets the 1 /2 /3 /4 /5 voltage ratio of V/F curve corresponding to F1/F2/F3/F4/F5 frequency based on rated
st nd rd th th
output voltage 100%. User sets the 1 /2 /3 /4 /5 frequency of V/F curve corresponding to V1/V2/V3/V4/V5.
st nd rd th th
Must meet: 0≤F1≤F2≤F3≤F4≤F5≤max frequency, 0≤V1≤V2≤V3≤V4≤V5≤100.0%
V1, V2, V3, V4, V5 is based on motor rated voltage.
F08.11

Output voltage percentage

Setting range: 25.0-120.0%
Output voltage adjustment coefficient adjusts output voltage of inverter to meet different V/F requirement.
F08.12 Torque boost Setting range: 0.0-30.0%
F08.13

Torque boost cut-off frequency

Setting range: 0.0-100.0%
Torque boost:
Automatically torque boost while [F08.12] is set 0,and compensate the output voltage automatically according to the
load.Fixed torque boost while [F08.12] is set other values. Improve low frequency torque trait by voltage compensation.
Please set it rightly. If too high, motor maybe happens over excitation at low frequency running, over heat while long
time, even over current protection or can not start normally.
Note:
 while [F08.00] is "1 custom v/F curve", [F08.12] is invalid,and inverter will running with the custom V/F
curve.
 The drive only runs on a custom V/F curve.
Torque boost cut-off frequency:
Set torque improve valid range. While output frequency is over this value, torque improving function stops. 100% is
corresponding to motor rated frequency.
Function Parameter Specifications
Factory set: 100.0%
Factory set: 0.0%
Factory set: 100.0%
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