Delta Electronics AC Motor Drive VFD-VE Series - Manual (Page 130)

Chapter 4 Parameters|
Revision August 2008, 03VE, SW V2.04 4-81
Control
mode
VF VFPG SVC FOCPG TQRPG
Factory setting: 0
Settings 0 Zero bias
1 Lower than bias=bias
2 Greater than bias=bias
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.
1 0V 5 1 2 3 4 -1 -2 -3 -4 -5 -1 0V 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 TQRPG
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 TQRPG
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