4-8
4-2-6 Input Characterization
Specify the flow amount characteristic.
Select [Device] → [Configuration] → [Input Characterization] → [InputCharacterization].
- Characterization
Select Linear, Equal Percent, Quick Open, or Custom Curve.
The concept of each characteristic is shown below.
% STROKE
100
100
% IIN
Quick Open
Linear
Custom
0
0
Valve
opening
Input signal
Figure4-2 Concept of Flow Characteristics
- Custom Curve Data
When selecting Custom Curve, individually specify the input signal (Custom Data X1 to
21) and the opening (Custom Data Y1 to 21) to specify a polygonal line consisting of 21
points.
Handling Precautions:
- Specify both Custom Data IN and Custom Data OUT so that they
monotonically increase.
- The setting range is between 0% and 100%. The linear characteristic is set
from both edges outside this range.
4-2-7 Travel Cutoff
Specify the input signal (%) to forcibly fully open or close the valve. The valve is fully
closed when the input signal is less than or equal to the forced fully closed value. The
valve is fully opened when the input signal is greater than or equal to the forced fully
open value. These values can be independently specified.
Select [Device] → [Configuration] → [Travel Cutoff], then set forced fully closed value
(TravelCutoff Low) and forced fully open value (Travel Cutoff High).
The concept of input/output characteristics when the forced fully open and closed values
are specified is shown below.
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