1) Mode state – Mode enabled or disabled.

2) Parameter – maintained parameter (output current of Freq. Converter, motor winding temperature, pump intake pressure).

3) Correlation – correlation of frequency regulation at system output when parameter deviates from target value (direct, inverse). In direct correlation, if parameter exceeds target value then it will cause frequency increasing and vice versa: decreasing will lead to decreasing.

In inverse correlation, if parameter exceeds target value then it will cause frequency decreasing and vice versa: decreasing will lead to increasing.

4) Maintained value – maintained value of the parameter.

5) Period of regulation – time interval in which regulator compares current value of maintained value to target value and adjusts output frequency.

6) Proportional coefficient – proportional component of control signal. If coefficient equals to 1 and difference between current and target values of the maintained parameter also equals to 1, then output frequency will be changed by 1 Hz.

7) Integral coefficient – integral component of control signal. If coefficient equals to 1 and difference between current and target values of the maintained parameter equals to 1 during regulation period, then output frequency will be changed by 1 Hz.

8) Min operating frequency – lower limit of FC output frequency which cannot be below that.

9) Max operating frequency – lower limit of FC output frequency which cannot be exceeded.

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To change value in window element “list” () hover the cursor over it and change value with arrows “Left”/”Right” and confirm with Enter.

To change value in window element “parameter” () hover the cursor over it, start editing with Enter pressing and input new value with figures. Confirm input with Enter. To leave parameter unchanged press ESC.

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