The User Manual of 580 Series General Frequency Converter

4.8.2 The usage with auxiliary frequency reference

The source of auxiliary frequency source Y is in line with main frequency source, set and selected by means of F0-04.

Fig. 4-17 Selection of given auxiliary frequency source

The relationship between target frequency and main/auxiliary frequency source shall be set through F0-07 in actual application.

There are three kinds of relationship in total:

1. Main frequency source X: The main frequency source is directly given as the target frequency

2. Auxiliary frequency source Y: The auxiliary frequency source is directly given as the target frequency

3. Main/auxiliary operation XY: Main/auxiliary operation has 4 situations including main frequency + auxiliary frequency, main frequency-auxiliary frequency, main frequency + high auxiliary frequency, main frequency + low auxiliary frequency

4. Frequency switch: The said 3 kinds of frequency shall be selected or switched by means of DI terminal.

The selection, switching and others of the said frequency source shall be defined by means of Function Code F0-07, as shown in the following figure. The thick segment in the figure indicates default parameter setting. For specific setting method, please see the detailed description of function code marked in the figure.

Fig. 4-18 Selection of the given mixed source of main/auxiliary frequency

The superposition of main/auxiliary frequency source can be used for the closed-loop control field with speed, for example, take main frequency channel as the primary, employ auxiliary frequency channel for automatic tuning and cooperate with the switching of external DI terminal signal to reach the closed-loop control.