datablad 254 3ey02

datablad 254 3ey02
instabus EIB
Technical Product Information
December 2007
Dual Sensor for Brightness and Temperature
AP 254/02
5WG1 254-3EY02
tection channel can be deactivated by an associated
blocking object.
Product and Applications Description
Functional description
The Dual Sensor AP 254/02 provides ambient light level
and outdoor temperature values. These values can be
sent onto the bus.
The device offers four universal channels (A, B, D, E)
and one solar protection channel C, which evaluate light
level and temperature for their configured function.
Each universal channel alternatively provides the following threshold switches for control of switching, dimming,
and solar protection actuators based on ambient light
level and/or temperature:
• threshold switch for light level
• threshold switch for temperature
• threshold switch for light level and temperature combined
Dependent on whether the threshold condition is met or
not met a corresponding telegram is sent onto the bus
via the associated channel object. Additionally, a second
object can be activated as required to send a second
telegram.
Each universal channel can be deactivated by an associated blocking object. For each universal channel if a
light level threshold is applied it may be set to the current
light level via an associated learning object.
Additionally, the device provides a solar protection
channel C for automatic control of solar protection equipment. The automatic control can be started and stopped
via an object (sun control) or via a dusk/dawn ambient
light level threshold. Up to three light level thresholds
control the position (height and angle of slats) of the solar protection blinds.
The light level thresholds may be set by sending a bus
telegram to an associated learning object. The solar proSiemens AG
Automation and Drives Group
Electrical Installation Technology
P.O. Box 10 09 53, D-93009 Regensburg
Function for blinds:
When threshold 1 is exceeded the blind is moved down
via the first object (height) and the slats are moved into a
first position via the second object.
When threshold 2 is exceeded the slats are moved into a
second position. The height remains the same.
When threshold 3 is exceeded the slats are moved into a
third position. The height remains the same.
When the light level falls below any threshold the blind is
moved into the previous position and/or height. When
the light level falls below threshold level 1 the blind is
moved up.
Function for shutters / textile solar protection:
When threshold 1 is exceeded the shutter is moved
down into a first position via the object “height”.
When threshold 2 is exceeded the shutter is moved
down into a second position via the object “height”.
When threshold 3 is exceeded the shutter is moved
down into a third position via the object “height”.
When the light level falls below any threshold the blind is
moved to the previous height. When the light level falls
below threshold level 1 the blind is moved up.
While automatically controlling solar protection equipment fast changing sunshine conditions can lead to frequent up and down movements of the solar protection
equipment. To avoid frequent up and down movement of
the solar protection the parameter “Reaction to sun control ON” can be set to “move up & sun control once”. The
behaviour of the blinds and shutters changes as follows.
Function for blinds (singular automatic sun control):
When threshold 1 is exceeded the blind is moved down
via the first object (height) and the slats are moved into a
first position via the second object. The blind stays at
this height all day long. The blind is moved only at dusk
or via the object for automatic sun control. Only the slats
are adjusted dependent on the current light level.
When threshold 2 is exceeded the slats are moved into a
second position. The height remains the same.
When threshold 3 is exceeded the slats are moved into a
third position. The height remains the same.
When the light level falls below any threshold the slats
are moved into the previous position.
Function for shutters / textile solar protection (singular
automatic sun control):
When threshold 1 is exceeded the shutter is moved
down via the object (height).
When threshold 2 is exceeded the shutter is moved into
a second position via the object (height).
When threshold 3 is exceeded the shutter is moved into
a third position via the object (height).
AP 254/02, 6 pages
© Siemens AG 2007
Subject to change without prior notice
Technical Manual
Update: http://www.siemens.de/installationstechnik
2.13.2.11/1
instabus EIB
Technical Product Information
December 2007
Dual Sensor for Brightness and Temperature
AP 254/02
5WG1 254-3EY02
When the light level falls below any threshold no telegram is sent. The brighter it gets the further down the
shutter is moved. It is only moved up at dusk or when
the automatic sun control is turned off. All other movements of the shutters are initiated by the user.
Note
Always a telegram (move up, move down) is sent when
the day starts or ends, as a dusk threshold may be
crossed or a sun protection telegram is received. This
telegram is sent in the evening even if threshold 1 was
not exceeded during the day.
The device allows setting or reading the brightness
threshold levels for channels A to E at run-time, i.e.
without ETS. The current brightness threshold levels are
annunciated via object 40 “Brightness thresholds”.
After a download of the application program all brightness thresholds are automatically sent. The brightness
thresholds are sent in the same sequence as they appear in the application program in ETS.
Channel Threshold
1
Brightness
Brightness
2
3
4
Dusk threshold
Brightness
threshold 1
Brightness
threshold 2
Brightness
threshold 3
Brightness
Brightness
5
Comment
only, if the channel has been
configured as brightness
sensor or as universal channel
is always sent
is always sent
only if two or three thresholds were configured
(Parameter: „How many
brightness thresholds?“)
only, if the channel has been
configured as brightness
sensor or as universal channel
Thresholds that are not active are not sent (e.g. brightness threshold 3 if channel C is configured for two
thresholds only).
Sending any value between 0 and 127 respectively between 132 and 255 to the set brightness threshold object
triggers the device to send the current brightness
threshold values.
Note
As the encoding precision of a 2-Byte value (EIS 5) is
limited values are rounded up or down. Because of this a
e.g. value of 10,000 lux may be displayed as 9,999.36
($4FA1) or as 10,004.48 ($4FA2).
Technical Manual
Update: http://www.siemens.de/installationstechnik
2.13.2.11/2
Brightness thresholds may be set during operation via
the teach-in objects of the channels.
If the value 128 is received via the teach-in object of
channels A, B, C, D, or E the currently measured brightness value is saved thus replacing by the previously
configured value.
The threshold behaviour “above XY lux” or “below XY
lux” configured with ETS remains. The lower boundary
for the brightness threshold of channels A, B, C, D, and
E is 2 lux. The upper boundary is 90,000 lux.
The newly saved value of the brightness threshold is
sent onto the bus via object 40 thus confirming that the
threshold has been successfully set.
The solar protection channel C offers a dusk / dawn
threshold and up to three additional thresholds for controlling the solar protection. The teach-in codes for these
thresholds are listed in the following table.
learning code
Threshold
Hex. Dec.
$80
128
dusk / dawn
threshold
$81
129
threshold 1
$82
130
threshold 2
$83
131
threshold 3
lower li- upper
mit
limit
2 lx
500 lx
2 klx
6 klx
10 klx
60 klx
70 klx
80 klx
The newly saved values of the thresholds are sent onto
the bus via object 40 thus confirming that the thresholds
have been successfully set.
The brightness thresholds of the solar protection channel
C must be spaced 4,000 lux apart from each other, thus
fulfilling these conditions:
threshold 1 + 4,000 lux < threshold 2
threshold 2 + 4,000 lux < threshold 3
If one of these conditions is not met during teach-in the
device corrects the thresholds according to these rules.
The last threshold set by teach-in determines the value
of the other thresholds if the difference is too low.
If the teach-in value of threshold 3 is lower than the
value of threshold 2 then thresholds 1 and 2 are decreased.
If the teach-in values for thresholds 1 to 3 would be below the lower limits then those lower limit values are
used.
If the teach-in value for the dusk / dawn threshold would
be above the upper limit then the upper limit value is
used.
The device also corrects thresholds that were improperly
set with ETS. If the gap between thresholds is too small
threshold 1 is taken as the reference. The other thresholds are corrected with a gap of 4,000 lux between them.
AP 254/02, 6 pages
© Siemens AG 2007
Subject to change without prior notice
Siemens AG
Automation and Drives Group
Electrical Installation Technology
P.O. Box 10 09 53, D-93009 Regensburg
instabus EIB
Technical Product Information
December 2007
Dual Sensor for Brightness and Temperature
AP 254/02
5WG 254-3EY02
Application programs
Technical Specifications
21 S2 Brightness and Temperature 909712
− Send temperature value / brightness value cyclically
and / or on change
− Each threshold can be set separately
− Closed loop control of illumination light level to a preset value
− Up to four shading systems can be controlled based
on combined temperature and light level values
− Automatic solar protection control based on
dusk/dawn threshold and up to three additional brightness thresholds
− The current light level can be used to set any of the
brightness thresholds
Power supply
Via bus line
Power consumption: < 150 mW
Application examples
The Dual Sensor AP 254/02 is suitable for these applications:
− Multi-staged lighting controls
− Temperature controls e.g. control of electric band
heaters for frost protection
− Awnings / blinds / shutter controls
− Glass house controls
− Systems with visualization of light level and outdoor
temperature
Measurement range:
− Light level:
1 ... 100 000 Lux,
± 5 Lux resp. ± 20%
− Temperature: -30 ... 60°C,
± 1 Grad resp. ± 5%
The higher value of tolerance is applicable.
Aperture
horizontal +/- 60°
vertical –35° ... + 66,5°
Control elements
1 learning button:
for switching between normal operating mode and addressing mode
Display elements
1 red LED:
for monitoring bus voltage and displaying mode selected
with learning button
Connections
• Bus line:
screwless bus connection block
0,6 ... 0,8 mm Ø single core
Physical specifications
• Polymer casing
• Dimensions: 110 x 72 x 54 mm (H x B x T)
• Weight: ca. 145 g
• Fire load: ca. 4100 KJ ± 10 %
• Installation: surface mounted
Electrical safety
• Fouling class (according to IEC 60664-1): 2
• Protection (according to DIN EN 60 529): IP 54
• Protection in mounted position: IP 54
with vertical mounting and applied protective cap
• Bus: safety extra low voltage SELV DC 24 V
• Device complies with: EN 50 090-2-2
Reliability
Failure rate: 441 fit at 40°C
Electromagnetic compatibility
Complies with EN 50090-2-2
Siemens AG
Automation and Drives Group
Electrical Installation Technology
P.O. Box 10 09 53, D-93009 Regensburg
AP 254/02, 6 pages
© Siemens AG 2007
Subject to change without prior notice
Technical Manual
Update: http://www.siemens.de/installationstechnik
2.13.2.11/3
instabus EIB
Technical Product Information
December 2007
Dual Sensor for Brightness and Temperature
AP 254/02
5WG1 254-3EY02
Environmental specifications
• Ambient temperature operating: -25°C ... +55°C
• Climatic conditions: EN 50090-2-2
• Ambient temperature non-operating: - 25°C ... +70° C
• rel. humidity (non-condensing): 5 % to 93 %
Mounting and Wiring
Warning:
Mount the Dual Sensor in a vertical position only!
Markings
EIB, KNX, CE
CE mark
complies with the EMC regulations (residential and functional buildings), and low voltage regulations
Dimension Diagram
Dimensions in mm
Consequences of false installation:
Moisture and/or dust can get into the device!
Device failure and short circuiting of the bus line are potential consequences.
Bus connection
• Untighten the screw for the protective cap.
• Remove the protective cap.
• Push the bus wire through the bushing into the bus
connection block space.
• Watch the polarity (black on black; red on red) when
connecting the bus wire to the bus connection block!
• Push the bus connection block fully down.
Installation Instructions
When determining the installation location consider:
− protecting the dual sensor from dust and grime. A dirty
sensor inhibits the light level measurement.
− direct exposure of the sensor to sun light which will
impact the temperature measurement.
V
WARNING
• The device must be mounted and commissioned by an
authorized electrician.
• The prevailing safety and installation rules must be
heeded.
• The device must not be opened. A device suspected
faulty should be returned to the local Siemens office.
Technical Manual
Update: http://www.siemens.de/installationstechnik
2.13.2.11/4
AP 254/02, 6 pages
© Siemens AG 2007
Subject to change without prior notice
Figure 1: Connection of bus line
Siemens AG
Automation and Drives Group
Electrical Installation Technology
P.O. Box 10 09 53, D-93009 Regensburg
instabus EIB
Technical Product Information
December 2007
Dual Sensor for Brightness and Temperature
AP 254/02
5WG 254-3EY02
Operator Elements
Mounting and maintenance of the protective cap
Mounting the protective cap
• Place the protective cap over the installed device
• Lock the cap by tightening the screw.
Maintenance of the protective cap
• Clean the protective cap regularly to avoid false readings of the light level due to dust and grime.
• Use a damp cloth.
B2
B1
Aperture and inclination of the sun
th
When installing the device south of the 47 latitude
(Berne, Graz) it is beneficial to tilt the device upwards to
compensate for the higher inclination of the sun.
During installation of the mounting bracket tilt the mounting bracket towards the mounting surface such that the
distance between the upper edge of back of the device
and the mounting surface (e.g. building wall) is 15 ...
17mm.
Figure 2: Location of display and operator elements
B1
B2
Learning button for switching between normal
mode and addressing mode.
LED for indicating normal operating mode (LED off)
and addressing mode (LED flashes); upon receiving the physical address the device automatically
returns to normal mode and the LED is turned off.
Assigning the Physical Address
• Press button (B1).
• LED (B2) flashes brighter.
• The Physical Address can now be assigned nun with
the ETS and the application program can be loaded
into the device.
Siemens AG
Automation and Drives Group
Electrical Installation Technology
P.O. Box 10 09 53, D-93009 Regensburg
AP 254/02, 6 pages
© Siemens AG 2007
Subject to change without prior notice
Technical Manual
Update: http://www.siemens.de/installationstechnik
2.13.2.11/5
instabus EIB
Technical Product Information
December 2007
Dual Sensor for Brightness and Temperature
AP 254/02
5WG1 254-3EY02
General Notes
• The operating instructions must be handed over to the
client.
• Any faulty device should be returned to the local Siemens office.
• If you have further questions concerning the product
please contact our technical support.
! +49 (180) 5050-222
! +49 (180) 5050-223
" www.siemens.com/automation/support-request
Technical Manual
Update: http://www.siemens.de/installationstechnik
2.13.2.11/6
AP 254/02, 6 pages
© Siemens AG 2007
Subject to change without prior notice
Siemens AG
Automation and Drives Group
Electrical Installation Technology
P.O. Box 10 09 53, D-93009 Regensburg
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