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Universal Input KNX-S
￭
Mounting in suitable appliance box. Observe cable routing and spacing.
Bus connection
￭
Connect bus with a KNX device connection terminal to KNX connection (1)
(see figure 1).
(1)
KNX connection
(2)
Programming button
(3)
Programming LED
(4)
Connection cables
Installation instructions
–
To avoid interference from EMC radiation, the cables of the inputs should not
run parallel to cables carrying mains voltage or to load cables.
–
The voltage potentials of the connecting cables for the inputs and outputs are
not galvanically isolated from the bus voltage.
The connecting cables actually lengthen the bus cable. The specification for
the bus cable length (max. 1000 m) must be observed.
Do not connect the COM connections of multiple push-button interfaces.
–
–
No series resistance required for the connection of LEDs.
–
Use channels 1 and 2 for NTC temperature sensors. Select a compatible NTC
temperature sensor based on the characteristic curve of the NTC (see tables
below).
Characteristic curve of the NTC
T [°C]
82407708
Figure 1: Device components
R
25°C
B
25/100
R
/R
T
25
−30.0
21.56700
−10.0
6.29270
−5.0
4.70770
0.0
3.55630
5.0
2.71190
α [%/K]
5 / 10
33 kΩ
4300 K
R
[kΩ, rounded]
T
6.6
711.7
5.9
207.7
5.7
155.4
5.5
117.4
5.3
23.01.2024
89.5
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