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Parameter setting
Sensors Intra-Sewi KNX T and Intra-Sewi KNX TH
• Version: 11.06.2018 • Technical changes and errors excepted.
When using the control variable for a 4/6 way valve, the following applies:
0%...100% heating = 66%...100% control variable
OFF = 50% control variable
0%...100% cooling = 33%...0% control variable
5.5.
Temperature threshold values
Activate the required temperature threshold values. The menus for setting the th-
reshold values are displayed.
5.5.1. Threshold value 1, 2, 3, 4
Threshold value
Set, in which cases
threshold values and delay times
received via object are to be
retained. The parameter is only taken into consideration if the setting via object is ac-
tivated below. Please note that the setting "After power supply restoration and pro-
gramming" should not be used for the initial start-up, as the factory settings are always
used until the first communication (setting via objects is ignored).
Set the threshold value directly in the application program using parameters, or define
them via the bus using a communication object.
Threshold value setting via parameter:
Set the threshold values and hysteresis directly.
Threshold value setting via a communication object:
Define, how the threshold value is to be received from the bus. Basically, a new value
can be received, or simply a command to increase or decrease.
During initial commissioning, a threshold value must be defined, which will be valid
until the first communication with a new threshold value. For units which have already
Control type
(for level 2 only)
• 2-point-control
• PI control
Control variable of the 2nd Level is on
(only for level 2 with 2 point controlling)
• 1 bit object
• 8 bit object
Use threshold value 1/2/3/4
Yes • No
Maintain the
threshold values and delays received via
communication objects
• never
• after power supply restoration
• after power supply restoration and
programming
Threshold value setting via
Parameter
• Communication objects
Threshold value in 0.1°C
-300 … 800; 200
Summary of Contents for Intra-Sewi KNX T
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