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Parameter setting
Sensors Sewi KNX AQS and Sewi KNX AQS/TH-D
• Version: 10.09.2018 • Technical changes and errors excepted.
itial start-up, as the factory settings are always used until the first communication (set-
ting via objects is ignored).
During initial commissioning, an
offset
must be defined which is valid until the first
communication of a new offset. For units which have already been taken into service,
the last communicated offset can be used.
A set offset will be retained until a new value or a change is transferred. The current
value is saved, so that it is retained in the event of a power supply failure and will be
available once the power supply is restored.
Switching output
The output switching delay can be set using objects or directly as a parameter.
Maintain the
offset received via communication object
• never
• after power supply restoration
• after power supply restoration and
programming
.
Start offset in °C
valid until first communication
0...200; 30
Increment for offset change
0.1°C • 0.2°C • 0.3°C • 0.4°C • 0.5°C • 1°C •
2°C • 3°C • 4°C • 5°C
Hysteresis setting
in % • absolute
Hysteresis of the threshold value in %
(for setting in %)
0 ... 50; 20
Threshold value hysteresis in 0.1°C
increments
(at absolute setting)
0 ... 1000; 50
Threshold value sends
• never
• periodically
• on change
• on change and periodically
At and above change of
(if sent on change)
0.1°C • 0.2°C • 0.5°C • 1.0°C • 2.0°C • 5.0°C
Send cycle
(if sent periodically)
5 s • 10 s • 30 s • 1 min • … • 2 h
When the following conditions apply,
the output is
(TV = Threshold value)
• TV above = 1 | TV - hyst. below = 0
• TV above = 0 | TV - hyst. below = 1
• TV below = 1 |TV + hyst. above = 0
• TV below = 0 |TV + hyst. above = 1
Delays can be set via objects
(in seconds)
No • Yes
Switching delay from 0 to 1
for setting via objects:
valid until 1st communication
None • 1 s • 2 s • 5 s • 10 s • … • 2 h
