Delta Electronics VFD-VE, User Manual

Page: 149 / 313

Chapter 4 Parameters
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4-96 Revision Dec. 2008, 04VE, SW V2.05
3 The absolute value of the bias voltage while serving as the center
4 Serve bias as the center
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 operation frequency.
10V 5 1 2 3 4 -1 -2 -3 -4 -5 -10V 6 7 8 9
03-00
to
03-02
-6 -7 -8 -9
0
1
2
3
4
4
2
2
4
2
03-09~03-11 gain is positive
4
Z er o bias
Lower than bias =bias
Gr eater than bias= bi as
T he absolute value of the bias voltage
while s erving as the c enter
Serv e bias as the center
bias
bias
Positiv e bias
Negativ e bias
03-09 Analog Input Gain 1 (AVI) Unit: 1
03-10 Analog Input Gain 1 (ACI) Unit: 1
03-11 Analog Input Gain 1 (AUI) Unit: 1
Control
mode
VF VFPG SVC FOCPG TQCPG
Factory setting: 100.0
Settings -500.0~500.0%
Parameters 03-03 to 03-11 are used when the source of frequency command is the analog
voltage/current signal.
03-12 ACI/AVI2 Selection
Control
mode
VF VFPG SVC FOCPG TQCPG
Factory setting: 0
Settings 0 ACI
1 AVI 2
There are two AVI analog inputs can be used when this parameter is set to 1 and the SW2 on
the control board is set to AVI2. At this moment, ACI is for voltage input.
03-13 Analog Input Delay Time (AVI) Unit: 0.01
03-14 Analog Input Delay Time (ACI) Unit: 0.01
03-15 Analog Input Delay Time (AUI) Unit: 0.01
Control
mode
VF VFPG SVC FOCPG TQCPG
Factory setting: 0.01
Settings 0.00 to 2.00 sec
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