Download General Sensorless Vector Control Micro Drives

Transcript
Chapter 4 Parameters
Example 3:
The whole scale of the potentiometer may be used as desired. In addition to the signals 0 to 10V and
4 to 20mA, other popular voltage signals include 0 to 5V, 20 to 4mA or that under 10V.
Max.
Output Pr.03
Freq.
60Hz
35
0
10Hz
Bias
Adjustment
-2V 0Hz 0V
4mA
XV
10V
20mA
Pr. 50 = 10V X 100% = 83.3%
12V
Negative bias:
0V
Hz
60
10V
Potentiometer Scale
60-10Hz
10-0Hz
=
10V
XV
XV = 100 = 2V
50
Pr.48 = 2 X 100%
10
Example 4:
This example shows how to use Gain to set a potentiometer range of 0 to 5 Volts for 0-60 Hz. As an
option, you also could set Pr. 03 =120Hz.
Max.
Output Pr.03
Freq.
60Hz
Gain adjustment
30Hz
0Hz 0V
Revision Aug. 2015, ME16, SW V3.13
5V
30
Factory Settings
Pr.03=60Hz--Max. output Freq.
Pr.48=0.0% bias adjustment
Pr.49=0 -- bias polarity
Pr.50=200% -- pot. freq. gain
0
60
Hz
Pr.51=0 -- REV motion disable
5V
0V
in negative bias
Calculation of gain
Potentiometer Scale
10V )X100% = 200%
5V
4-45