Siemens N 545D31 User manual

GAMMA instabus
Solar protection actuator 4 x 6 A
N 545D31
The solar protection actuator is used to control shutters, awnings, sunblinds or
ventilation flaps with DC 24 V.
● End position detection by current detection for automatic move time determination.
● Direct operation for efficient installation displaying the moving direction and active
overrides via LED.
● Maintenance-free terminals for connecting and looping through solid, stranded and
fine-stranded conductors.
Functions for configuration with ETS:
● Extensive control and override functions and status messages for each channel
● On-site control of the drives
● Direct moving to element or slat positions.
● Automatic control of the drives with configurable behavior when the sun is shining
(sun tracking control)
● Scene control for calling up and storing defined element positions
● Safety functions through overrides in case of wind, rain, frost, moving blocks etc.
A6V12883338_en--_a Smart Infrastructure
2023-05-09 Building Products

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Characteristics
The solar protection actuators are used to control blinds, roller shutters, sliding shutters, ex-
ternal blinds, awnings or ventilation flap drives with DC 24 V. They are used in building auto-
mation. Device control is conducted via KNX.
Through the selection of various operating modes such as manual and automatic mode,
solar protection is controlled both locally and centrally. Automatic commands from a weather
station enable sun tracking control with shade edge tracking.
The device is a rail-mounted device in N dimension for installation in arrangements and in-
stallation on 35-mm rails as per standard IEC 60715.
The bus connection of the device uses a bus terminal block. The electronics of the device
are supplied via the bus voltage (no additional supply voltage required).
The maintenance-free terminals are for connecting solid, fine-stranded and stranded con-
ductors with conductor cross-sections from 0.5 to 2.5 mm² to the relay output channels.
Stranded and fine-stranded conductors can be plugged into the terminals without ferrules.
DC 24 V FELV is supplied centrally via separate connection terminals to control the motor
drives.
Solar protection actuator N 545D31 consists of the device (hardware) and the application
program (software). Depending on its use, each relay output channel can be assigned differ-
ent functions.
Functions
Factory settings
In the factory settings, the functions “manual operation solar protection“ up/down and
“manual operation stop, slats” open/close are assigned to the building site function for all
channels (outputs).
Building site function
In the factory settings, the building site function enables moving up and down as well as
stopping and changing the slat position of an element via a corresponding bus button, even if
these devices are yet to be commissioned via the Engineering Tool Software (ETS).
Programming mode
1
Fig.1: Programming button and programming LED (exemplary illustration)
After bus voltage recovery, wait several seconds before pushing the programming (1) but-
ton (not before booting is complete).
Activate programming mode
◈Briefly press the programming button (1) (< 2 seconds).
aProgramming mode is activated.
aThe programming LED (1) illuminates continuously.
Deactivating programming mode
üProgramming mode is activated. The programming LED (1) illuminates continuously.
◈Briefly press the programming button (1) (< 2 seconds).
aProgramming mode is deactivated.
aThe programming LED (1) is not illuminated.

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Resetting the device to factory settings
A very long push of the programming button of more than 20 seconds resets the device to its
factory settings. This is indicated by the programming LED flashing steadily for 8 seconds.
All configuration settings are deleted. The building site function of the delivery state is re-ac-
tivated.
Behavior on unloading the application program
After unloading the application program with the ETS, the unloaded device has no functions.
Behavior on voltage failure/recovery
The electronics of the device are bus powered. Therefore, a grid voltage failure only leads to
a functional failure of the device if the bus voltage also fails as a result of the grid voltage fail-
ure.
In case of bus voltage failure, the current status and other values for each channel are saved
permanently so that they can be restored when the bus voltage is recovered.
When bus voltage is recovered, the configured actions for each channel are executed and,
depending on the parameters set, new statuses are reported.
Each channel can be independently configured with parameters to define what status it is to
assume in case of bus voltage failure (up, down, no change or stop). In addition, a starting
behavior when bus voltage is recovered can be configured for each active override (e.g.
alarms, moving blocks).
When bus voltage is recovered, one of the following functions can be selected as the starting
value: Up, down, no change, as per parameter and stop. A delay can be configured for the
starting value.
Direct operation
In direct operation, the solar protection actuator can be controlled using the buttons on the
solar protection actuator. This enables the installer, for example, to check whether the solar
protection actuator has been connected correctly.
After installation, the individual channels of the device can be tested directly on the device.
Prior configuration via the software is not necessary for this.
Position and function of the operating and display elements
Factory settings
In the factory settings (see also building site function [}2]), direct operation without time lim-
its is activated.
After configuration, direct operation is limited to the configured time limit.
End position detection and automatic move time determination
The move time to defined element positions between the end positions can be analyzed
automatically.
To this end, current detection is used to detect if the upper or lower end position is reached
in the context of the respective Up/Down command.
Direct control commands: Move Up / Down, Stop, Slat Adjustment
1-bit objects can be used to control the moving direction of the solar protection via Up and
Down commands.
In the “Shutter” operating mode, an ongoing blind move for the respective channel can be
stopped or, if the blind is stationary and a logical “0” is received, the slats can be opened by
one step; if a logical “1” is received, they can be closed by one step.
Direct control commands: Move to positions 0…100 %
1-byte objects can be used to move the sunblind of the corresponding channel to any posi-
tion between 0 and 100% in manual operation and automatic operation.
In “Shutter” operating mode, the slats of the corresponding channel can also be moved into
any position between 0 and 100%.

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Scene control
8-bit scene control
Using 8-bit scene control, current solar protection or slat positions can be assigned to a
scene and retrieved.
Move to position 1/2, 3/4 (1-bit scene control)
The function “move to position 1/2, 3/4” is particularly suitable to repeatedly move to pre-
ferred element positions in combination with the 1-bit scene control.
The function can be used to specify 4 different solar protection positions for each channel. 2
of these preset positions (1/ 2 or 3/4) are addressed via one group address with the values
“0” and “1.”
The stored default settings of the positions can also be changed without programming the
device via KNX. To do this, the blinds must be moved to the desired element height. This
new position with the value “0” and “1” is copied to the memory of the device via the commu-
nication objects “position 1/2” (store) and “position 3/4” (store).
A preferred blind position can be called and stored at the push of a button. To do this, a key
is pressed briefly to call up a position and a long key press is used to store it as a desired
position.
Manual operation/automatic operation
The “manual operation” and “automatic operation” functions can be released separately for
each channel via the ETS.
Manual operation is used for on-site control of the drives either individually or as a central
command. Direct moving to element or slat positions is also possible here.
Automatic operation is configured for automated control of drives via a weather station. Auto-
matic control via central commands is also possible.
When the sun is shining, sun tracking control of slats or shadow line tracking is implemented.
Central control
Each solar protection channel can be controlled centrally in manual operation and in auto-
matic operation (manual operation solar protection central, automatic operation solar protec-
tion central). In addition, an individual delay time can be configured for time-delayed opera-
tion of the solar protection to avoid load peaks and noise pollution when starting up several
drives.
Overrides
Up to seven different override function blocks can be activated via ETS to override the solar
protection functions. The overrides can be configured per channel and individually.
For each of the override function blocks, one of the following functions can be selected: Wind
Alarm, Rain Alarm, Frost Alarm, Lock, Forced position, Forced Control, Range limitation,
User defined.
This enables flexible configuration of an individual priority-specific override for each channel.
For the override functions a control value input can be selected instead of a switching control
input.
Different priorities can be assigned to the override functions.
Range limitation
In order to not disturb the movement of the solar protection when windows, doors or sky-
lights are open, the movement range can be restricted with an upper and lower limit.
Element settings
For exact positioning and adjustment of the elements, the move times between the respect-
ive end positions can be determined automatically. For this purpose, there are calibration
runs, which can be configured.
An end position dead time can also be set for this.
Alternatively, the move times of the elements or the slat move times and step sizes for slats
(shutters) can be set manually.
Advanced configuration
Specific settings for controlling the drives are offered. This includes, e.g. the swapping of the
UP and DOWN connections. A reverse pause time is set to protect the motor.
A slip compensation time can be projected as slip compensation for a change in direction.

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The drives can be controlled with start-up delays or run on for a configured time.
Status messages
Responses on element positions, such as dynamic element position, slat position, moves,
moving directions, reaching the upper or lower end position are reported. In addition, re-
sponses to the different overrides, current operating mode such as direct operation or auto-
matic operation can be displayed. In automatic end position detection, a status on the calib-
ration of the move time is communicated.
Diagnostic functions
Contact faults can be reported.

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Schematic design of a solar protection actuator channel
The following scheme shows the function of a channel of the solar protection actuator using
the “blind” function in a logical context.
Position
Manual operation
Override Automatic operation
Direct operation
Calibration
Stop, slats
Solar protection
via dimming
8-bit scene
Position
% control
Central
solar protection
Automatic operation
Send status values
% control
Sunshine
Central solar protection
Override 1 – 7
Direct operation lock
External value
solar protection position
Start calibration of
moving time
8-bit
1-bit
Manual operation
Delay
t
Off
Automatic operation
Delay
t
Status
automatic operation
Override 1 – 7
Direct operation
Control
Recall/store
positions
≥ 1 active
Overrides
status
Overrides
1 – 7 status
Status direct operation
Status upper end position
Status lower end position
Status moving direction
Status
solar protection position
Status
slat position
Status calibration
moving time
Automatic operation
Override
Direct
operation
Status solar protection
Cali- bration Manual operation Position
Solar protection
Up/Down
Status drive moving

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Technical design
Position and function of the connections and labeling
6
5
4
3
2
1
Fig.2: Position and function of the connections and labeling Solar protection actuator N 545D31, 4 x 6
A DC
Pos. Element Function
1 Connection pins for KNX bus terminal
block, screwless
Connect the KNX bus.
2 Label field Enter the physical address.
3 Connection terminals of the channels Connect motors.
4 Feed in 24 V DC for all channels (motors)
5 Labeling of relay contacts for the drive channels
6 Membrane keypad Execute direct operation.
Display movement direction and override.

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Position and function of the operating and display elements
Fig.3: Operating and display elements Solar protection actuator N 545D31, 4 x 6 A DC
Pos. Operating or display element Function
1 Programming LED (red),
Programming button
Short push of button (<2s):
● Activate programming mode, display status (LED on = act-
ive).
Very long push of button (>20s):
● Reset to factory settings (after 20s, the LED starts flashing
for about 8s).
2 Button: Deactivate direct operation Short push of button:
● Deactivate direct operation for all channels.
Pushing the button and pushing the Stop/Slat Up/Down key (4,
6) of a channel:
● Deactivate the direct operation of the respective channel.
3 Status LED of direct operation (yellow) LED flashes if direct operation is active for at least one channel.

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Pos. Operating or display element Function
4 Button: Stop/slat:
“Up” move command of the channel
Short push of button (< 1s):
● Move command “Stop” or “Lower”
● Activate direct operation for the channel.
Long push of button (> 1 s):
● Move command “Down” active
● Activate direct operation for the channel.
5 Status LED of the channel, below (red) Indicates the status of the respective channel.
● LED switched off: Direct operation is switched off.
● LED lit: Move command “Down” active.
● LED flashing in sync with status LED: Direct operation is
switched on.
6 Button: Stop/slat:
“Up” move command of the channel
Short push of button (< 1s):
● Move command “Stop” or “Raise”
● Activate direct operation for the channel.
Long push of button (> 1 s):
● Move command “Up” active
● Activate direct operation for the channel.
7 Status LED of the channel, below (red) Indicates the status of the respective channel.
● LED switched off: Direct operation is switched off.
● LED lit: Move command “Up” active.
● LED flashing in sync with status LED: Direct operation is
switched on.
5, 7 Status LEDs of the channel, above
and below (red):
Both LEDs lit: Override active.
8 Test contacts Metering point for voltage testing
Type overview
Type Designation Item number KNX PL-Link
N 545D31
Solar protection
actuator,
4 x 6 A, DC 24 V
5WG1545-1DB31 yes
Version of the Engineering Tool Software
Application Version
Engineering Tool Software (ETS) ETS 5 or above

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Product documentation and support
Product documentation
Documents related the product, such as operating and installation instructions, application
program description, product database, additional software and CE declarations can be
downloaded from the following website:
http://www.siemens.com/gamma-td
Frequently asked questions
For frequently asked questions about the product and their solutions, see:
https://support.industry.siemens.com/cs/products?dtp=Faq&mfn=ps&lc=de-WW
FAQ
Support
Contact details for additional questions relating to the product:
Tel.: [phone]
http://www.siemens.com/supportrequest
Notes
Security
CAUTION
National safety regulations
Failure to comply with national safety regulations may result in personal injury and property
damage.
● Observe national provisions and comply with the appropriate safety regulations.
● The device should only be installed and put into operation by a certified electrician.
● When connecting the device, ensure that the device can be enabled.
● Do not open the casing of the device.
● Only use conventional transformers that comply with the relevant standards and con-
tain a thermal fuse.
● For planning and setup of electric systems, the relevant guidelines, observe the regula-
tions and standards of the respective country.
● Secure the phases with a B10 line protection switch.
Installation
The solar protection actuators can be used for fixed installations in interior spaces, for dry
locations, within distribution boards or small casings with DIN rails EN 60715-TH35.

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Commissioning
Connecting motors to the relay contacts
Fig.4: Example: Solar protection actuator N 545D31, 4 x 6 A DC
Cu
0.5...2.5 mm²
2.5 mm²
Connecting KNX
Fig.5: Example: Solar protection actuator N 545D31, 4 x 6 A DC
Cu
0.6…0.8mm

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Testing KNX 24 V DC type. SELV
This test can be used to check whether the bus connection cable is connected with the cor-
rect polarity and whether device is supplied with bus voltage.
Fig.6: Example: Solar protection actuator N 545D31, 4 x 6 A DC
Operation in direct operation (A|B|C|D Un = 24 V)
Fig.7: Example: Solar protection actuator N 545D31, 4 x 6 A DC

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Function test of the installation
This test can be used to check whether the motors have been connected correctly.
Fig.8: Example: Solar protection actuator N 545D31, 4 x 6 A DC
Disposal
The device is considered an electronic device for disposal in accordance
with European Directive and may not be disposed of as domestic waste.
● Use only designated channels for disposing the devices.
● Comply with all local and currently applicable laws and regulations.
If a device is defective, contact the local sales office.

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Technical data
Power supply
KNX bus voltage DC 24 V (DC 21...30 V)
KNX power consumption 15 mA
KNX power loss (power consumption) 0.15 W
Outputs
Number of drive channels 4
Switching voltage DC 24 V
Output current
Rated current per channel 6 A
Rated current per device 10 A
Current sensing for travel time determination > 150 mA
Service life
Mechanical lifespan 10,000,000 switching cycles
Electrical lifespan 50,000 switching cycles
Power loss
Maximum power loss of the device at rated
output
3 W
Maximum power loss per output at rated
output and maximum resistive load
1.8 W
Switching capacities/load types, loads
Resistive load 144 W
Minimum switching capacity 5 V
100 mA
DC1 switching capacity 24 V
6 A
Mechanical data
Housing material Plastic
Dimensions Rail-mounted device in N dimension, width 4
TE (1 TE = 18 mm)
See dimension drawing [}16]
Product weight 235 g
Fire load 5 MJ
Environmental conditions
Ambient temperature in operation -5 °C...+45 °C (23 °F...113 °F)
Storage temperature -20 °C...+70 °C (-4 °F...158 °F)
Transport temperature -25 °C...+70 °C (-13 °F...158 °F)
Relative humidity
(non-condensing)
5 %...95 %
Environmental rating EN 60721-3-3 class 3k5
Protection settings
Degree of pollution (according to IEC
60664-1)
2

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Protection settings
Over-voltage category
(according to IEC 60664-1)
III
Housing protection class (according to EN
60529)
IP20
Electrical safety, bus (SELV) yes
Electrical safety, device fulfills EN 50428
EMC requirements, device complies with EN 50428
Test mark KNX, EAC, RCM, WEEE, China-RoHS
CE mark yes
Reliability
Failure rate (at 40°C) 1961 fit

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Connection example
The following connection example shows the connection of 4 DC motors for control (up/down
or open/close) e.g. of solar protection, door, window or ventilation flaps via channels A, B, C,
and D.
Fig.9: Example: Solar protection actuator N 545D31, 4 x 6 A DC
Dimension drawing
Fig.10: Example: Solar protection actuator N 545D31, 4 x 6 A DC

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Compliance information
FCC Statement
WARNING
Installation and usage of equipment not in accordance with instructions manual may
result in:
Radiation of radio frequency energy
Interference to radio communications
● Install and use equipment in accordance with installation instructions manual
● Read the following information
This equipment generates, uses, and can radiate radio frequency energy and if not installed
and used in accordance with the instructions manual, may cause interference to radio com-
munications.
It has been tested and found to comply with the limits for a Class A computing device pursu-
ant to Part 15 of FCC Rules, which are designed to provide reasonable protection against
such interference when operated in a commercial environment.
Operation of this equipment in a residential area is likely to cause interference in which case
the user at his own expense will be required to take whatever measures may be required to
correct the interference.
FCC Statement
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reason-
able protection against harmful interference in a residential installation. This equipment gen-
erates, uses and can radiate radio frequency energy and, if not installed and used in accord-
ance with the instructions, may cause harmful interference to radio communications. How-
ever, there is no guarantee that interference will not occur in a particular installation. If this
equipment does cause harmful interference to radio or television reception, which can be de-
termined by turning the equipment off and on, the user is encouraged to try to correct the in-
terference by one or more of the following measures:
● Reorient or relocate the receiving antenna.
● Increase the separation between the equipment and receiver.
● Connect the equipment into an outlet on a circuit different from that to which the receiver
is connected.
● Consult the dealer or an experienced radio/TV technician for help.
This device complies with Part 15 of the FCC rules. Operation is subject to the following two
conditions:
1. This device may not cause harmful interference, and
2. this device must accept any interference received, including interference that may cause
undesired operation
FCC Caution: Changes or modifications not expressly approved by Siemens Switzerland
Ltd. could void the user’s authority to operate the equipment. United States representative
https://new.siemens.com/us/en/products/buildingtechnologies/home.html
Industry Canada statement
This device complies with ISED’s license-exempt RSSs. Operation is subject to the following
two conditions:
1. This device may not cause interference, and
2. This device must accept any interference received, including interference that may cause
undesired operation.

Issued by
Siemens Switzerland Ltd
Smart Infrastructure
Global Headquarters
Theilerstrasse 1a
CH-6300 Zug
[phone]
www.siemens.com/buildingtechnologies
© Siemens 2023
Technical specifications and availability subject to change without notice.
Document ID A6V12883338_en--_a
Edition 2023-05-09