KNX AQS-UP basic Guide

Installation and Adjustment
KNX AQS-UP basic
Air Quality Sensor
Article numbers 70224 (white), 70225 (aluminium), 70226 (anthracite), 70227 (stainless steel)
EN
Elsner Elektronik GmbH Control and AutomationTechnology
Sohlengrund 16
D - 75395 Ostelsheim Phone [phone] / 30 945-0 [e-mail]
Germany Fax [phone] www.elsner-elektronik.de

1 Contents
Elsner Elektronik GmbH • Sohlengrund 16 • 75395 Ostelsheim • Germany
Sensor KNX AQS-UP basic • from software version 3.1, ETS programme version 3.1
Status: 24.03.2016 • Subject to technical changes. Errors excepted.
1. Description ........................................................................................... 3
1.0.1. Scope of delivery .......................................................................................... 3
1.1. Technical specifications ........................................................................................... 4
1.1.1. Accuracy of the measurement ..................................................................... 4
2. Installation and commissioning ........................................................... 5
2.1. Installation notes ...................................................................................................... 5
2.2. Installation position .................................................................................................. 5
2.3. Composition ............................................................................................................. 6
2.3.1. Housing .......................................................................................................... 6
2.3.2. Rear view of sensor board with connections ............................................. 7
2.4. Assembly of the sensor ........................................................................................... 7
2.5. Notes on mounting and commissioning ................................................................ 7
3. Transfer protocol ................................................................................. 9
3.1. List of all communications objects ......................................................................... 9
4. Parameter setting .............................................................................. 13
4.1. Behaviour on power failure/ restoration of power .............................................. 13
4.2. General settings ..................................................................................................... 14
4.3. CO2 measured value .............................................................................................. 14
4.4. CO2 threshold values ............................................................................................. 15
4.4.1. Threshold value 1, 2, 3, 4: CO2 .................................................................. 15
Threshold value .......................................................................................... 15
Switching output ......................................................................................... 16
Block ............................................................................................................. 16
4.5. CO2 PI control ......................................................................................................... 17
General control ........................................................................................... 17
Controller target value ................................................................................ 18
Ventilation control ...................................................................................... 19
4.6. Variable comparator .............................................................................................. 19
4.6.1. Control variable comparator 1/2 ................................................................ 19
4.7. Logic ........................................................................................................................ 20
AND logic ..................................................................................................... 20
OR logic ....................................................................................................... 20
4.7.1. AND and/or OR logic 1/2/3/4/5/6/7/8 .......................................................... 21
Block ............................................................................................................. 21
4.7.2. AND logic connection inputs ..................................................................... 22
4.7.3. Connection inputs of the OR logic ............................................................. 23

2 Clarification of signs
This manual is amended periodically and will be brought into line with new software
releases. The change status (software version and date) can be found in the contents footer.
If you have a device with a later software version, please check
www.elsner-elektronik.de in the menu area "Service" to find out whether a more up-to-
date version of the manual is available.
Clarification of signs used in this manual
Installation, inspection, commissioning and troubleshooting of the device
must only be carried out by a competent electrician.
Safety advice.
Safety advice for working on electrical connections, components,
etc.
DANGER! ... indicates an immediately hazardous situation which will lead to
death or severe injuries if it is not avoided.
WARNING! ... indicates a potentially hazardous situation which may lead to
death or severe injuries if it is not avoided.
CAUTION! ... indicates a potentially hazardous situation which may lead to
trivial or minor injuries if it is not avoided.
ATTENTION! ... indicates a situation which may lead to damage to property if it is
not avoided.
ETS In the ETS tables, the parameter default settings are marked by
underlining.

3 Description
Air Quality Sensor KNX AQS-UP basic • Version: 24.03.2016 • Technical changes reserved. Errors reserved.
1. Description
The Air Quality Sensor KNX AQS-UP basic measures the CO2concentration in the
room. The sensor can receive an external CO2value via the bus and process it with the
own data to an overall value (mixed value, e.g. room average).
The KNX AQS-UP basic provides four switching outputs with adjustable threshold
values. The switching outputs and further communication objects can be linked by
AND and OR logic gates. Additionally, an integrated actuating variable comparator can
compare and output values that are received via communication objects.
An integrated PI controllers allows for control of ventilation depending on CO2concen-
tration.
The housing is completed with a frame of the switching series installed in the building
and thus merges with the interior.
Functions:
• Measurement of CO2concentration of the air
•Mixed value from own measured value and external value (proportions can
be set in percentage)
•PI controller for ventilation depending on CO2concentration:
dehumidification/humidification (one step) or dehumidification (one or two
step)
•4 switching outputs with adjustable threshold values (Threshold values can
be set by parameter or via communication objects)
•8 AND and 8 OR logic gates with each 4 inputs. Every switching incident as
well as 8 logic inputs (in the form of communication objects) may be used as
inputs for the logic gates. The output of each gate may optionally be configured
as 1 bit or 2 x 8 bits
•2 actuating variable comparators for output of minimum, maximum or
average values. Each with 5 inputs (for values received via communication
objects)
Configuration is made using the KNX software ETS. The product file can be down-
loaded from the Elsner Elektronik website on www.elsner-elektronik.de in the “Ser-
vice” menu.
1.0.1. Scope of delivery
• Housing with display, buttons and sensor board
•CO
2sensor unit
• Base plate
You will need in addition (not supplied):
• Socket Ø 60 mm, 42 mm deep
• Frame (for element 55 x 55 mm), suitable for the switching programme used in
the building

4 Description
Air Quality Sensor KNX AQS-UP basic • Version: 24.03.2016 • Technical changes reserved. Errors reserved.
1.1. Technical specifications
* Mind the notes on Accuracy of the measurement, page 4
The product conforms with the provisions of EU guidelines.
1.1.1. Accuracy of the measurement
Measurement variations from sources of interference (see chapter Installation posi-
tion) must be corrected in the ETS in order to ensure the specified accuracy of the sen-
sor (offset). To ensure a correct CO2measurement, the device must be installed in a
windproof socket.
The indicated accuracy of the CO2measurement will be achieved after a run-in pe-
riod of 24 hours (without interruption of the bus voltage) if the sensor has been in con-
tact with fresh air (350…450 ppm) at least once in this period.
After this, the CO2sensor will recalibrate every two weeks by defining the lowest meas-
ured value captured during that period (without interruption of the bus voltage) as a
reference for fresh air.
Housing Plastic material (partly lacquered)
Colours • White glossy (similar to RAL 9016 Traffic White)
• Aluminium matt
• Anthracite matt
• Stainless steel
• Special colours on request
Mounting In-wall (in socket Ø60 mm, 42 mm deep)
Protection category IP 20
Dimensions Housing approx. 55 x 55 (W x H, mm),
mounting depth approx. 15 mm,
base plate approx. 71 x 71 (W x H, mm)
Total weight approx. 72 g
Ambient temperature Operation -10…+50°C, storage -20…+60°C
Ambient air humidity max. 95% R. H., avoid bedewing
Operating voltage KNX bus voltage
Bus current max. 10 mA
Data output KNX +/- bus terminal plug
BCU type Own micro controller
PEI type 0
Group addresses max. 254
Allocations max. 254
Communication objects 133
CO2 measurement range 0...2000 ppm
CO2resolution 1 ppm
CO2accuracy* ± 50 ppm ± 3% of the measured value

5 Installation and commissioning
Air Quality Sensor KNX AQS-UP basic • Version: 24.03.2016 • Technical changes reserved. Errors reserved.
The guarantee the accuracy on a sustained basis, the sensor should be provided with
fresh air at least once in two weeks. This occurs normally during room ventilation.
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 its intended purpose. 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 assem-
bled 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 Air Quality Sensor KNX AQS-UP basic will be installed concealed within a so-
cket (Ø 60 mm, 42 mm deep).
May be installed and operated in dry interior rooms only.
Avoid condensation.
For monitoring of the CO2content of the room air choose an installation position in
height of head (standing or sitting, according to utilization of room). The CO2concen-
tration in indoor rooms is highest near the floor and decreases towards the ceiling.

6 Installation and commissioning
Air Quality Sensor KNX AQS-UP basic • Version: 24.03.2016 • Technical changes reserved. Errors reserved.
When selecting an installation location, please ensure that the measurement results
are affected as little as possible by external influences. Possible sources of interference
include:
• 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
Measurement variations from such sources of interference must be corrected in the
ETS in order to ensure the specified accuracy of the sensor (offset).
To ensure a correct CO2measurement, the device must be installed in a windproof
socket.
2.3. Composition
2.3.1. Housing
Fig. 1
1 Base plate
2Notches
3 Air circulation holes
4 Programming LED (recessed)
5 Programming button (reces-
sed) for teaching instrument
6 Air circulation holes
(BOTTOM)
3
2
5
4
6
1

7 Installation and commissioning
Air Quality Sensor KNX AQS-UP basic • Version: 24.03.2016 • Technical changes reserved. Errors reserved.
2.3.2. Rear view of sensor board with connections
2.4. Assembly of the sensor
First of all fit the windproof socket with connection. Also seal inlet pipes to avoid infil-
tration.
Screw the base plate onto the socket and position the frame of the switching pro-
gramme. Connect the CO2sensor unit and the bus line +/- (black-red plug) to the ter-
minals provided on the board.
Pin the sensor with the notches on to the metal frame, so that sensor and frame are
fixed.
2.5. Notes on mounting and commissioning
Never expose the device to water (e.g. rain) or dust. This can damage the electronics.
You must not exceed a relative humidity of 95%. Avoid condensation.
After the bus voltage has been applied, the device will enter an initialisation phase last-
ing a few seconds. During this phase no information can be received or sent via the
bus.
Fig. 2
1 KNX terminal BUS +/-
2Notches
3SlotforCO
2sensor unit
4 Plug of CO2 sensor unit
5CO
2sensor unit
Length of cable approx. 110 mm
a Hole centre distance approx. 43 mm
b Diameter of diaphragm
approx. 18 mm
2
1
34 5
a
b
Place the CO2sensor unit in the socket. The side with the sensor
membrane must face to front.
Fig. 3

8 Installation and commissioning
Air Quality Sensor KNX AQS-UP basic • Version: 24.03.2016 • Technical changes reserved. Errors reserved.

9 Transfer protocol
Sensor KNX AQS-UP basic • from software 3.1 • Status: 24.03.2016 • Technical changes reserved. Errors reserved.
3. Transfer protocol
Units:
CO2content in ppm
Variables in %
3.1. List of all communications objects
Abbreviation flags:
C Communication
R Read
WWrite
T Transfer
UUpdate
No. Name Function DPT Flags
0 Software version readable 217,001 C R T
2 CO2 sensor malfunction Output 1,001 C R T
98 Outside CO2 reading Input 9,008 C W
99 Inside CO2 Internal reading Output 9,008 C R T
100 Total CO2 reading Output 9,008 C R T
101 CO2 maximum value request Input 1,017 C W
102 Maximum CO2 reading Output 9,008 C R T
103 Reset CO2 maximum value Input 1,017 C W
104 CO2 threshold value 1: Absolute
value
Input/Output 9,008 C R W T
U
105 CO2 threshold value 1: (1:+ | 0:-) Input 1,002 C W
106 CO2 threshold value 1: Switching
delay from 0 to 1
Input 7,005 C W
107 CO2 threshold value 1: Switching
delay from 1 to 0
Input 7,005 C W
108 CO2 threshold value 1: Switching out-
put
Output 1,001 C R T
109 CO2 threshold value 1: Switching out-
put block
Input 1,002 C W
110 CO2 threshold value 2: Absolute
value
Input/Output 9,008 C R W T
U
111 CO2 threshold value 2: (1:+ | 0:-) Input 1,002 C W
112 CO2 threshold value 2: Switching
delay from 0 to 1
Input 7,005 C W