KNX eTR 208 Light/Sunblind push button
1
KNX eTR 208 Light/Sunblind push button
• Version: 21.12.2020 • Technical changes and errors excepted. • Elsner Elektronik GmbH • Sohlengrund 16 • 75395 Ostelsheim • Germany • www.elsner-elektronik.de •
Technical Service: +49 (0) 7033 / 30945-250
KNX eTR 208 Light/Sunblind
Button for Temperature,
Light and Solar Protection
Technical specifications and installation instructions
Item number 71190
1.
Description
The
KNX eTR 208 Light/Sunblind push button
has touch-sensitive buttons
with which functions can be called up in the KNX building bus system. The glass
surface is printed with areas for setting the temperature, light and solar protection.
LEDs are integrated in these areas and their behaviour can be adjusted.
A temperature sensor is integrated into
KNX eTR 208 Light/Sunblind
. An exter-
nal temperature reading can be received via the bus and processed with its own
data to create a total temperature (mixed value).
The
KNX eTR 208 Light/Sunblind
has a PI controller for heating and cooling.
The setpoint temperature can be changed using the "+" and "-" touch buttons.
Communication objects can be linked via AND and OR logic gates.
Functions:
•
Operating zone for temperature control
with 2 areas (warmer, cooler)
•
Operating zone for light
with 2 areas (switching and dimming)
•
Operating zone for blinds
, awnings, shutters or windows with 2 areas
(up/down with short/long distinction)
•
LEDs
can be set. All LEDs Off, all LEDs as ambient lighting, all LEDs
individually controllable
•
Area function
when touching two or more push buttons. Can be
configured as switch, selector switch, as 8 or 16 bit encoder or for scenario
recall
•
Temperature
measurements.
Mixed value
from own measured value and
external values (proportion can be set by percentage), output of minimum
and maximum values
•
PI-controller for heating
(one or two-level) and
cooling
(one or two-
level) according to temperature. Regulation according to separate setpoints
or basic setpoint temperature
•
2 AND and 2 OR logic gates
each with 4 inputs. 8 logic inputs (in the form
of communications objects) can be used as inputs for the logic gates. The
output from each gate can be configured optionally as 1-bit or 2 x 8-bit
Configuration is made using the KNX software ETS 5. The
product file
can be
downloaded from the ETS online catalogue and the Elsner Elektronik website on
www.elsner-elektronik.de
in the “Service” menu.
1.0.1. Area function
If the area function in ETS has been activated, another function is available along-
side the regular key functions. This is triggered by touching multiple keys, e.g. if
you touch the sensor with the palm of your hand.
Using the area function
If a key is pressed and another (different) key is touched within 0.2 seconds, the ac-
tion set in the ETS is performed for the area operation (See Fig. 1 a) and b)). The
keys are then blocked for 0.5 seconds.
Using the normal key function
If a key is pressed and no other key is touched within 0.2 seconds, the normal key
function is enabled/provided for 5 seconds (See Fig. 1 c) and d)). This is extended
for 5 seconds with each push of the button.
If the area function in the ETS is disabled, the keys can be used normally at any ti-
me.
1.0.2. Scope of delivery
•
Room temperature controller with mounting
•
4 screw anchors 4 × 20 mm, 4 flat head screws 3 × 25 mm
1.1. Technical specifications
The product conforms with the provisions of EU guidelines.
1.1.1. Accuracy of the measurement
Measurement variations from permanent sources of interference (see chapter
Ins-
tallation position
) can be corrected in the ETS in order to ensure the specified ac-
curacy of the sensor (offset).
When
measuring temperature
, the self-heating of the device is compensated.
2.
Installation and commissioning
2.1. Installation notes
Installation, testing, operational start-up and troubleshooting should
only be performed by an electrician.
CAUTION!
Live voltage!
There are unprotected live components inside the device.
•
National legal regulations are to be followed.
•
Ensure that all lines to be assembled are free of voltage and take
precautions against accidental switching on.
•
Do not use the device if it is damaged.
•
Take the device or system out of service and secure it against
unintentional use, if it can be assumed, that risk-free operation is
no longer guaranteed.
The device is only to be used for the intended purpose described in this manual.
Any improper modification or failure to follow the operating instructions voids any
and all warranty and guarantee claims.
After unpacking the device, check it immediately for possible mechanical damage.
If it has been damaged in transport, inform the supplier immediately.
The device may only be used as a fixed-site installation; that means only when as-
sembled and after conclusion of all installation and operational start-up tasks and
only in the surroundings designated for it.
Elsner Elektronik is not liable for any changes in norms and standards which may
occur after publication of these operating instructions.
2.2. Installation position
The
KNX eTR 208 Light/Sunblind push button
is made for wall mounting. The
device can be mounted directly on plaster or on a socket (Ø 60 mm).
May be installed and operated in dry interior rooms only.
Avoid condensation.
When selecting an installation location, please ensure that the measurement re-
sults are affected as little as possible by external influences. Possible sources of in-
terference include:
•
Direct sunlight
•
Drafts from windows and doors
•
Draft from ducts which lead from other rooms or from the outside to the
junction box in which the sensor is mounted
•
Warming or cooling of the building structure on which the sensor is
mounted, e.g. due to sunlight, heating or cold water pipes
•
Connection lines and ducts which lead from warmer or colder areas to the
sensor
Measurement variations from permanent sources of interference can be corrected
in the ETS in order to ensure the specified accuracy of the sensor (offset).
2.3. Composition of the device
2.4. Mounting
Prepare the device
Remove the front panel from the mounting. Release the lock by moving the front
panel a few millimetres upwards. The two parts can then be easily separated (Fig.
5).
Screw the mounting onto the wall or socket. The connecting wires (bus line +/-) are
led through the opening in the mounting.
Housing
plastic material, glass
Colours
similar to RAL 9003 signal white
Mounting
on-wall (directly or with a socket
Ø
60 mm,
resp. cavity wall socket for hole
Ø
68 mm)
Degree of protection
IP 10
Dimensions
housing approx. 81,5 x 81,5 (W x H, mm),
mounting depth approx. 12 mm
Total weight
approx. 70 g
Ambient temperature
Operation 0…+55°C, storage -30…+85°C
Ambient air humidity
5...95% RH, avoid bedewing
Operating voltage
KNX bus voltage
Bus current
max. 25 mA
Data output
KNX +/- bus terminals
Group addresses
max. 254
Allocations
max. 254
Communication objects
98
Temperature measure-
ment range
0…+55°C
Temperature resolution
0.1°C
Key function readiness
Key function readiness
Fig. 1
0s
0.2s
5.2s
Key Y
Key X
Key X
Design
Function Y
Key function readiness
Area function
Examples of normal key functions
0.5 s block
Key X
Design
Area function
Key Y
Design
Function X
a)
b)
c)
d)
Key X
Key Y
0.5 s block
Design
Area function
Area function examples
readiness
1
2
3
Fig. 2
Front view
1 „Temperature“ area with 2
touch surfaces and temperature
display
2 „Light“ area with 2 touch surfa-
ces
3 „Sun protection/drive“ area with
2 touch surfaces
3
4
5
Fig. 3
Back view with mounting
3/4 Screw holes for different sockets. Fas-
tening with 2 screws is sufficient. For
wall mounting, use a fixing material
suitable for the ground!
5 KNX bus te/- for connection
when mounted on a socket
6 Spring-loaded terminals KNX bus for
mounting directly on the wall
3
3
3
4
4
4
6
Fig. 4
Back view without mounting
5 KNX bus te/- for connection
when mounted on a socket
6 Spring-loaded terminals KNX bus for
mounting directly on the wall
7 Programming LED
8 Programming button (recessed) for
teaching device
9 Temperature sensor
PRG key is accessible from below/outside
when the device is mounted (see chapter
Addressing the device).
5
6
8
9
7
Fig. 5 Locking of front panel and mounting
EN
