Delta BLD-E1 brushless DC motor drive BLD-E1 Series - Manual (Page 101)

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 1 2 3 4 -1 -2 -3 -4 -5 -10 V 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
Serv e bias as the center, lower than bias = bias
Serv e bias as the center, gr eater than bias=bias
T he absolute value of the bias v oltage
while s er ving as the c enter (unipolar)
Serv e bias as the center (unipolar)
bias
bias
Positiv e bias
Negativ e 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.