HV100 Series High Performance Current Vector Inverter
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2: VF fully separated mode, voltage open-loop output
In this mode, the output frequency and voltage of the inverter are completely independent, and the frequency is
accelerate and decelerate according to the defined acceleration and deceleration time, while the voltage is adjusted to the
target value according to the rising/falling time defined by 05.19 and 05.20. As shown in the figure, this control mode is
mainly applied to the design of some variable frequency’s power supplies.
Figure F5-7 Voltage Control Mode 2
3: VF fully separated mode, voltage closed-loop output
The only difference between this mode and mode 2 is that it introduces a voltage closed loop, which can stabilize the
voltage by PI adjustment for the deviation between the feedback voltage and the given voltage. It can compensate the
target voltage deviation caused by load change, and make the voltage control precision higher and the response faster, as
shown in the following figure
05.13
Voltage given channel
0
～
2
0
0
：
Digital given
Set the target voltage value by function code 05.15.
1
：
AI1
The target voltage value is given by the analog AI1. Pay attention to the physical quantity corresponding to AI1, and
06.00 should be set to 2 (voltage command).
2
：
AI2
The target voltage value is given by the analog AI2. Pay attention to the physical quantity corresponding to AI2, and
06.00 should be set to 2 (voltage command).
05.14
Voltage feedback channel of voltage closed-loop output
0
～
1
0
0
：
AI1
The target voltage value is given by the analog AI1. Pay attention to the physical quantity corresponding to AI1, and
06.00 should be set to 2 (voltage command).
1
：
AI2
The target voltage value is given by the analog AI2. Pay attention to the physical quantity corresponding to AI2, and
06.00 should be set to 2 (voltage command).
05.15
Digitally set the output voltage value
0.0 ~ 200.0% * rated voltage of motor
100%
05.16
Deviation limit of motor closed-loop adjustment
0.0 ~ 5.0% * rated voltage of motor
2.0%
Used in limited closed loop mode, allow voltage regulate to maximum deviation amplitude, so as to limit the voltage
within a safe range and ensure the reliable running of equipment.
05.17
Maximum voltage of VF curve in semi-separated mode
0.0 ~ 100.0% * rated voltage of motor
80.0%
This function defines the maximum voltage point when starting the equipment according to the voltage and frequency
curve. Reasonable setting of this function can validly prevent the voltage overshoot during starting and ensure the reliable
running of the equipment.
05.18
Controller adjustment period of voltage closed-loop output
0.01
～
10.00s
0.10
This function code represents the speed of voltage adjustment. If the voltage response is slow, this parameter value can
be appropriately reduced.
05.19
Voltage rising time
0.1
～
3600.0S
10.0
05.20
Voltage drop time
0.1
～
3600.0S
10.0
Output
voltage
Time
