Delta VFD-L Series

5
VFD-L Series
DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED
5-17
Hz
0V
10V
30
0
60
Potentiometer Scale
Max.
Output
Freq.
60Hz
Pr.1-00
0Hz
0V
4mA
5V
12mA
10V
20mA
Factory Settings
Pr.1-00=60Hz--Max. output Freq.
Pr.4-00=0Hz--Potentiometer bias freq.
Pr.4-01=0 -- bias polarity
Pr.4-02=100% -- pot. freq. gain
Pr.4-03=0 -- pot. REV motion enable
30Hz
Example 2:
In this example with the potentiometer set to 0V the Output Frequency is 10 Hz. The
mid-point of the potentiometer becomes 40 Hz. Once the Maximum Output Frequency is
reached any further increase of the potentiometer will not increase output frequency.
Hz
0V
10V
40
10
60
Potentiometer Scale
Max.
Output
Freq.
60Hz
Pr.1-00
0Hz
0V
4mA
5V
12mA
10V
20mA
Parameter Settings
Pr.1-00=60Hz--Max. output Freq.
Pr.4-00=10Hz--Potentiometer bias freq.
Pr.4-01=0 -- bias polarity
Pr.4-02=100% -- pot. freq. gain
Pr.4-03=0 -- pot. REV motion enable
10Hz
Bias
Adjustment
It's 60 Hz
within this
range.
Example 3:
The example also shows the popular method. The whole scale of the potentiometer can be
used as desired. In addition to signals of 0 to 10V and 4 to 20mA, the popular voltage signals
also include signals of 0 to 5V, 20 to 4mA or that under 10V. Regarding the setting, please
refer to the following examples.
Hz
0V
10V
35
10
60
Potentiometer Scale
Max.
Output
Freq.
60Hz
Pr.1-00
0Hz
0V
4mA
5V
12mA
10V
20mA
Parameter Settings
Pr.1-00=60Hz--Max. output Freq.
Pr.4-00=10Hz--Potentiometer bias freq.
Pr.4-01=0 -- bias polarity
Pr.4-02=83% -- pot. freq. gain
Pr.4-03=0 -- pot. REV motion enable
10Hz
Bias
Adjustment
Calculation of gain
Pr.4-02= (1-
Pr.4-00
Pr.1-00
)x100%