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Chapter 4 ParametersAT |Troubleshooting}| BLD-E1 Series
4-60
Revision May 2009, 00DE, V0.50
03-07
Positive/negative Bias Mode (ACI) (can be set to 0 or 1 only)
Control
mode
VF VFPG FOCPM
Factory setting: 0
03-08
Positive/negative Bias Mode (AVI)
Control
mode
VF VFPG 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.
10V
5
1234-1-2-3-4
-5
-10V
6
789
03-00
to
03-02
-6
-7-8
-9
0
1
2
3
44
2
2
4
2
03-09~03-11 gain is positive
4
Zero bias
Serve bias as the center, lower than bias =bias
Serve bias as the center, greater than bias=bias
The absolute value of the bias voltage
while serving as the center (unipolar)
Serve bias as the center(unipolar)
bias
bias
Positive bias
Negative bias
03-09
Analog Input Gain 1 (VR)
Control
mode
VF VFPG FOCPM
Factory setting: 100.0
03-10
Analog Input Gain 1 (ACI)
Control
mode
VF VFPG FOCPM
Factory setting: 100.0
03-11
Analog Input Gain 1 (AVI)
Control
mode
VF VFPG FOCPM
Factory setting: 100.0
Settings 0.0~500.0%
Parameters 03-03 to 03-11 are used when the source of frequency command is the analog
voltage/current signal.