Valve Control

The "ValveControl" output signal is based on the following functions:

The lowest signal of these functions is used as the internal control signal. The minimum valve output signal is defined by the parameter VLV-02. If the internal control signal drops below the value of the minimum setting, then the valve will be closed as shown in the next figure. The valve position signal is ramped up with the increase rate VLV-03.


Fig. 8.   Valve Control Output


Table 8.   Parameter List

Description

Value Range

Default Value

Unit

VLV-02: minimum valve position

0...100

40

%

VLV-03: maximum valve position increase per minute

0...1000

70

%