Chapter 4 Parameters|VFD-VL
4-57
It is used to set the corresponding ACI voltage of the external analog input 0.
03-05
Analog Input Bias 1 (AUI2)
Control
mode
VF VFPG SVC FOCPG TQCPG FOCPM
Factory setting: 0.0
Settings -100.0~100.0%
It is used to set the corresponding AUI2 voltage of the external analog input 0.
The relation between external input voltage/current and setting frequency is equal to -10~+10V
(4-20mA) corresponds to 0-60Hz.
03-06
Positive/negative Bias Mode (AUI1)
Control
mode
VF VFPG SVC FOCPG TQCPG FOCPM
Factory setting: 0
03-07
Positive/negative Bias Mode (ACI) (can be set to 0 or 1 only)
Control
mode
VF VFPG SVC FOCPG TQCPG FOCPM
Factory setting: 0
03-08
Positive/negative Bias Mode (AUI2)
Control
mode
VF VFPG SVC FOCPG TQCPG FOCPM
Factory setting: 0
Settings 0 Zero bias
1 Serve bias as the center, lower than bias=bias
2 Serve bias as the center, greater than bias=bias
3 The absolute value of the bias voltage while serving as the center
(unipolar)
4 Serve bias as the center (unipolar)
In a noisy environment, it is advantageous to use negative bias to provide a noise margin. It is
recommended NOT to use less than 1V to set the operating frequency.
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