Xylem DIQ/S 281 Operating Manual page 113

DIQ/S 281
Settings
Characteristic
curve
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the function are described in the introductory chapter (see section 6.2.3).
In order to set up the
output must be linked with a sensor (see section 6.4).
Setting
Measured variable
Start value
End value
Frequency (f) min.
Frequency (f) max.
Frequency with error
Action
End value
If a value for
has a positive characteristic curve.
In order to obtain a negative characteristic curve, a value for
entered that is smaller than the value for
03/2023
Frequency controller
Selection/Values
Main variable
Adjoining variable
within the
measuring range
(sensor-
dependent)
0 to 120 1/min
0 to 120 1/min
Open
Close
that is greater than the
function for a relay output, the relay
Explanation
Main variable
actual measured parameter
of the sensor (e.g. pH,
oxygen, etc.).
Adjoining variable
designates an additional
measured parameter (e.g.
temperature).
Minimum spacing:
5 % of the measuring range
Minimum spacing:
10 1/min
In case of system errors or
sensor errors (see
page 125), the relay
switches with the frequency
specified.
Relay action (see
section 6.6.1)
Start value
is entered, the output
End value
Start value
.
Outputs
designates the
must be
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