Delta Electronics Network Device VFD-S Especificaciones descargar pdf (Pagina 39)

VFD-S Series

5-22

Example 5:

In this example a 1 volt negative bias is used. In a noise environment, it is advantageous to

use negative bias to provide a noise margin (1V in this example).

Example 6:

In this example, a negative bias is used to provide a noise margin. Also a potentiometer

frequency gain is used to allow the Maximum Output Frequency to be reached.

Example 7:

In this example, the potentiometer is programmed to run a motor is both forward and reverse

direction. A motor will be idle when the potentiometer position is at mid-point of its scale.

Using Pr.4-03 will disable the external FWD and REV controls.

10V

Potentiometer Scale

Max.

Output

Freq.

Pr.1-00

Factory Settings

Pr.1-00=60Hz--Max. output Freq.

Pr.4-00=30Hz--Potentiometer bias freq.

Pr.4-01=1 -- bias polarity

Pr.4-02=200% -- pot. freq. gain

Pr.4-03=1 -- pot. REV motion enable

60Hz

30Hz

0Hz

10V

30Hz

60Hz

REV

FWD

REV.

FWD.

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Delta Electronics Network Device VFD-S Especificaciones Pagina 39