WAREMA Sensor Splitter User manual

Sun. Light. WAREMA.
Photo: Habermaass GmbH
Sensor Splitter
Installation instructions
(Keep for future use)
Valid from 01 September 2017
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General information
General information
The publication of this document su-
persedes all previous corresponding
documentation. We reserve the right
to make alterations in the interest
of technical progress. Considerable
care was taken in producing the text
and graphics in this documentation.
No liability is accepted for any errors
which may nevertheless exist in this
documentation nor for the conse-
quences of any such errors.
Safety instructions
For detailed information, please refer
to the respective installation and oper-
ating instructions.
Head office
WAREMA Renkhoff SE
Hans-Wilhelm-Renkhoff-Strasse 2
97828 Marktheidenfeld, Germany
P.O. Box 13 55
97822 Marktheidenfeld, Germany
Phone: [phone]
Telefax: [phone]
http://www.warema.com
[e-mail]
Details
WAREMA Renkhoff SE
Hans-Wilhelm-Renkhoff-Strasse 2
97828 Marktheidenfeld/Main, Ger-
many
Customer Center
for control systems
Sale, order processing and applied
engineering for the branch areas:
Control systems hotline
Tel. [phone] • Fax -6769
Branch office
for control systems
Dillberg 33, 97828 Marktheidenfeld,
Germany
Tel. [phone] • Fax -3719
WAREMA and the WAREMA logo are
trademarks of WAREMA Renkhoff SE.
All other brand or product names
included in this document are trade-
marks or registered trademarks of
their respective owners.
© 2012, WAREMA Renkhoff SE

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Contents
Contents 1 Features ............................................................................................................ 4
2 Safety instructions........................................................................................... 5
2.1 Meanings of symbols and pictographs ...........................................................5
2.2 Intended use ..........................................................................................................7
2.3 Targeted reader group .........................................................................................7
2.4 Retrofitting and modifications.............................................................................7
2.5 Mounting, connection and repairs.....................................................................8
2.6 Additional documents ..........................................................................................9
2.7 Maintenance...........................................................................................................9
2.8 Liability ....................................................................................................................9
3 Installation ...................................................................................................... 10
3.1 Mounting the device.......................................................................................... 11
4 Connection ..................................................................................................... 12
4.1 Connection information..................................................................................... 12
4.2 Bus lines.............................................................................................................. 13
4.3 Hardware settings on the sensor splitter....................................................... 14
5 Wiring diagrams ............................................................................................. 16
5.1 Connecting the Wisotronic............................................................................... 18
5.2 Connecting the WAREMA climatronic®........................................................ 20
5.3 Connecting a separate power supply unit .................................................... 22
5.4 Connecting a Sensor Interface........................................................................ 23
5.5 Connecting multiple weather stations............................................................ 24
6 Commissioning .............................................................................................. 25
6.1 Procedure for Wisotronic.................................................................................. 25
6.2 Procedure for WAREMA climatronic®........................................................... 26
7 Technical data ................................................................................................ 28
8 Troubleshooting ............................................................................................. 29
8.1 Table for troubleshooting.................................................................................. 29
8.2 Replacement of a weather station multisense on the Wisotronic ............ 30
8.3 Replacement of a weather station on the WAREMA climatronic®.......... 31

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Sensor Splitter
1 Features
The sensor splitter is used to connect
multiple WAREMA climatronic®units to 1 to 3 weather stations or Sensor
Interfaces
multiple Wisotronic 1/2/3/4-channel to one weather station multisense
Thus, separate sensors are not needed for each central control unit. For ex-
ample, if there is one central control unit per storey in a building, all central
control units can be supplied with the necessary weather data from a single
weather station.
The measuring values are actively requested from the connected weather
stations via the sensor splitter. All other sensor splitters on the bus merely
need to "listen".
The devices can be mutually connected via a separate RS485 bus.
The sensor splitter makes 24 V DC/250 mA available on the bus on the sen-
sor side (sufficient for one weather station). If multiple weather stations are
connected, they need to be supplied by a separate power supply unit.
WAREMA
central control unit
WAREMA
central control unit
Sensor splitter
Weather station
Sensor splitter
Fig. 1 Bus structure

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Sensor Splitter
2 Safety instructions
We developed and tested the sensor splitter in compliance with the basic
safety requirements.
Residual risks nevertheless remain!
 For this reason, please read these instructions before commissioning and
operating the control.
 It is very important to adhere to the safety information listed here and the
warning information in these instructions.
 Keep these instructions for future use.
2.1 Meanings of symbols
and pictographs
The safety information in these instructions is marked with warning symbols.
It is categorised into different warning types depending on the level of poten-
tial danger:
DANGER
warns of an imminently dangerous situation.
Possible consequences may include serious injuries and even death
(personal injury), property or environmental damage.
WARNING
warns of a potentially dangerous situation.
Possible consequences may include light or serious injuries and even
death (personal injury), property or environmental damage.
CAUTION
Reminder to be careful.
Possible consequences of the failure to do so may include property
damage.

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Sensor Splitter
The following pictograms and symbols may be affixed to the control itself or
to the connected devices, alerting you to potential danger:
WARNING
Warning against dangerous electrical voltage!
CAUTION
Component damage due to electrostatic discharge!
NOTE The term NOTE marks important information and helpful tips.
Example The term Example marks an example.
 The square marks an instruction or a prompt for action. Perform this step.
The triangle marks an event or the result of a preceding action.
The black triangle is a bullet point for lists or selections.

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Sensor Splitter
2.2 Intended use
The sensor splitter is an electronic device that is used to connect up to three
weather stations or Sensor Interfaces to multiple WAREMA climatronic®con-
trol panels or to connect one weather station multisense to multiple Wisotron-
ic control panels at the same time. The device is designed for interior instal-
lation. The approval of the manufacturer must be obtained for uses outside of
the purposes listed here.
WARNING
The consequences of unintended use may include personal injuries of the
operator or of third parties as well as property damages to the unit itself,
connected devices or moveable mechanical parts of the entire system.
 Therefore, use our product only as intended.
2.3 Targeted reader group
These instructions address persons mounting, wiring or connecting the sen-
sor splitter and all necessary parts. Please contact your specialist dealer if
you need additional information.
WARNING
Mounting, connection, commissioning or operation by insufficiently
qualified and knowledgeable persons may cause serious damage to the
system or even personal injuries.
 Mounting and commissioning may therefore only be performed by properly
trained qualified technicians. These specialists must be able to recognise
sources of danger that may be caused by the mechanical, electrical or elec-
tronic equipment.
 Persons mounting or connecting the device must know and have understood
the content of these instructions.
2.4 Retrofitting and
modifications
We designed and built the device with reliability and safety in mind. All re-
quired settings are made when the unit is first commissioned. Modifications
to the system parameters are therefore only required when the characteristics
of the system need to be adjusted, changes are made to the sensor equip-
ment or the device itself is replaced.
WARNING
Retrofitting and modifications may impact the safety of the system or
reduce its effectiveness. Possible consequences may include death,
serious or light injuries, property damage or environmental damage.

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2.5 Mounting, connection
and repairs
DANGER
Danger to life through electrical voltage!
 Connecting, maintenance or repair work on the electrical parts of the entire
system must only be performed when power to the system has been cut off,
unless otherwise described. The unit must be sufficiently secured against un-
authorised and inadvertent reactivation.
 If measuring or testing activities need to be carried out on the active unit, ex-
isting safety and accident prevention regulations must be observed under all
circumstances.
 Make sure to always use suitable electrical tools.
WARNING
States of danger, malfunctions and property damage to the unit may arise
from improperly executed mounting, connection, repair or maintenance
work.
 Such work may only be carried out by the service department or by author-
ised qualified specialists.
 Only use such spare/replacement parts for maintenance or repair work as
have been approved by the manufacturer of the unit.
WARNING
Dangerous situations, malfunctions and property damage to the unit may
result if connections are disconnected during operation! All connections
are required for proper operation of the device.
 Therefore, switch off the entire system before attaching or detaching connect-
ing lines.

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2.6 Additional documents
When performing the installation, follow the separate instructions of the com-
ponents being connected.
2.7 Maintenance
There are no parts within the device that require maintenance.
2.8 Liability
Failure to comply with the product information in these instructions and use
of the device in a manner that contravenes its intended use and purpose
may result in the manufacturer refusing to honour warranty claims for prod-
uct damage. In this case, liability for secondary harm to persons or damage
to property will also be excluded. Follow the instructions in the operating
instructions of your sun shading system. The automatic or manual operation
of the sun shading system when iced over as well as using the sun shading
system during severe weather may cause damage and must be prevented by
the user by taking suitable precautions.

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Sensor Splitter
3 Installation
This chapter will tell you where and how the individual components must be
installed.
WARNING
Dangerous situations and malfunctions are possible! The device and its
auxiliary components may only be operated when installed and at the
specified installation locations. Malfunctions or dangerous system states
may occur if this is neglected. In any case, any guarantee or warranty
claim then becomes void.
Follow the points below in the order given:
 First determine where the individual components are to be installed. Use the
instructions given in Chapter4.1 on page 12.
 Then determine which cables are required to connect the components with
one another. Use the instructions given in Chapter5 on page 16.
 Lay the required lines. It is advisable to use conduits.
 Install and wire the individual components.
 Check the wiring before switching on the operating voltage.
 Then commission the unit as described in Chapter 6 on page 25.
 Check that the connected central control units and sensors are functioning
properly:
WARNING
Electrical operating equipment must be mounted for easy access.
(VDE00100)

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Sensor Splitter
3.1 Mounting the device
The devices are designed for installation in a distributor. They are to be
mounted in a dry and readily accessible location. The devices absolutely
must not be mounted outdoors and must not be subjected to direct sunlight.
 Please observe the cable types recommended in the wiring diagrams.
 When installing the devices in a distributor, they must be mounted on a sym-
metrical DIN rail (35mm as per DIN EN 50022).
 The minimum distance between the terminals and another object equals
10mm.
 The devices can be mounted by simply clipping them onto the DIN rail.
Fig. 2 Sensor splitter in a 3 MW DIN rail-mounted housing
60 mm
95 mm 90 mm
54 mm
3 TE
60 mm
Fig. 3 Dimensions of 3 MW DIN rail-mounted housing

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Sensor Splitter
4 Connection
4.1 Connection
information
WARNING
In a permanently routed installation, there must be an in-series
disconnecting and isolating device to separate the device from the supply
voltage (switch according to EN 60335-1, Section 25.2, e.g. circuit breaker).
230 V AC lines (power lines) should not be routed between the DIN rail and
rear wall but to one side at as great a distance as possible.
The external +24-V voltage provided by the sensor splitter is exclusively in-
tended for supplying a connected weather station. If other weather stations
are connected, they need to be supplied by a separate power supply unit.
The specified lines are recommendations. As specified in VDE 0022, the
operating company and the installer are responsible for compliance with the
regulations put forth by the public utility provider and the VDE.
The wiring specified in the cable diagrams is for minimum cross sections in
copper, taking no account of the length and the resulting voltage drops.
The relevant VDE regulations must be followed when routing lines outdoors.
Furthermore, the lines must be suitable for outdoor use.
High voltage and low voltage lines must be routed separately (at least 10 cm
apart).
DANGER
Work on the 230-V network must be performed by a certified electrician
in accordance with the electrical installation regulations published by the
Association of German Electrical Engineers (VDE 0100) or the standards
and regulations of the country in which the device is being installed.
NOTE The device meets the requirements for use in domestic and business prem-
ises.

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Sensor Splitter
4.2 Bus lines
CAUTION
Only make changes to the bus wiring while the unit is in a de-energised
state.
Several basic principles must be observed to ensure fault-free bus communi-
cation.
Do not accidentally swap the connections of the bus of the central control
unit
(terminals A and B) with the bus connections for the weather stations (ter-
minals A1 and B1). See Fig. 6 on page 16.
A maximum of 200 sensor splitters can be operated in a system.
The bus for connecting weather stations with the sensor splitters must be
configured in a linear structure and may not exceed a maximum length of
1200m.
The ends of the bus line must both be terminated with a 120-Ω resistance.
Check whether all devices on the bus line are still being supplied with a volt-
age of at least 20V.

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Sensor Splitter
4.3 Hardware settings on
the sensor splitter
For the bus communication to operate properly, only one sensor splitter may
query the measuring values of the connected weather stations. This sensor
splitter must be set as a MASTER using the encoding switches on the board
of the sensor splitter. By default, all encoding switches are in the OFF posi-
tion.
To activate the MASTER function, encoding switch 1 must be set to the ON
position.
The type of connected central control unit must be set on encoding switch 3.
S2
1 2 3 4
ON
24V 0V B1 A1
X10 X11
Fig. 4 Encoding switch on sensor splitter
The required settings can be found in Table Fig. 5. This setting should always
be made with the device switched off.
Encoding
switch Setting Comment
1
ON
MASTER
The connected central control unit queries data directly
from the weather stations.
This switch may only be switched on at a sensor splitter.
OFF
SLAVE
Weather data on the bus are intercepted and stored. The
stored weather data are output on request from the con-
nected central control unit.
3ON Wisotronic
OFF WAREMA climatronic®
Encoding switches 2 and 4 must be set to OFF; otherwise, the connected weather
stations cannot be queried.
Fig. 5 Encoding switch settings
NOTE If no sensor splitter is set as the master, measuring values cannot be queried
by the weather stations. The weather stations therefore do not send measur-
ing values. If the central control unit set as a master is not in operation (e.g.
the power supply is switched off), weather data will not be queried either.

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5 Wiring diagrams
D1X6
S2
X5
1 2 3 4
ON
X10 X11
0V 24V A B
24V 0V B1 A1
Terminals X6
Connection to
the bus
of the central
control unit
Terminals X5
Connection of
the 24 V DC
power supply
Terminals X10
Power supply
for weather
station
(max. 250 mA)
Terminals X11
Bus connection
for the weather
stations
Service-LED
Display of bus
communication
Encoding
switch S2
Definition of the
master,
Disabling of
addresses
Fig. 6 All connections at a glance

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Sensor Splitter
Terminal
block Terminal Designa- tion Comment
Bus of central control unit (4 inputs)
X5 10 V Power supply of sensor splitter
224 V
X6 1ACommunication (RS485)
2B
Commissioning
Push button Prog ID No function
LED LED Flashes during active bus communication with
the connected central control unit
Bus of weather stations (4 outputs)
X10 124 V Power supply for weather station
(max. 250mA)
20 V
X11 1B1 Communication (RS485)
2A1
Encoding switch
S2
1
ON
MASTER
The connected central control unit queries the
data directly from the weather stations.
This switch may only be switched on at a sen-
sor splitter.
OFF
SLAVE
Weather data on the bus are intercepted and
stored. The stored weather data are output
on request from the connected central control
unit.
3ON Wisotronic
OFF WAREMA climatronic®
Encoding switches 2 and 4 must be set to OFF; otherwise, the con-
nected weather stations cannot be queried.
Fig. 7 All connections at a glance

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5.1 Connecting the
Wisotronic
Weather station multisense
Sensor splitter 1
MASTER
Sensor splitter 2
SLAVE
Sensor splitter n
SLAVE
Power supply
unit
230 V
50 Hz
Sensor bus
Wisotronic bus 1Wisotronic bus 2 Wisotronic bus n
Power unit Power unit
Wisotronic
1-channel
Control panel
Wisotronic 2/3/4-channel
Control panel
Wisotronic 2/3/4-channel
Fig. 8 Schematic diagram of a Wisotronic unit
The connection of a Wisotronic is shown in Fig. 9. Please note the following
special features when connecting the unit:
The sensor splitter to which the weather station multisense is connected
must be supplied via a separate power supply unit.
If possible, always connect the weather station to the sensor splitter that is
acting as the MASTER. Provide separate on-site fuse protection for the sepa-
rate power supply unit. This ensures that weather data will always be sent to
the sensor bus.
NOTE The sensor splitters connected to the sensor bus only receive weather data
when the weather station and the MASTER are in operation.
The 24-V output terminals (X10) of the sensor splitters must not be con-
nected to each other.
The 0-V output terminals (X10) of the sensor splitters must be connected to
each other to prevent potential differences between the connected devices.
Otherwise, long line lengths may result in communication problems.
The Wisotronic control panel and the weather station multisense already have
an integrated 120-Ω terminating resistor.
For all sensor splitters to which a Wisotronic is connected, encoding switch
3 must be set to the ON position. This setting should always be made with
the device switched off.

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Sensor Splitter
Sensor Splitter 1 MASTER (Encoding switch 1 and 3 ON)
YE WT RD BK
JY(St)Y 2x2x0.8 mm ø
WT RD BK
0V
B
A
The ends of the bus lines must be terminated with a 120-Ω resistor. Insert the
supplied resistors into the bus terminals. The Wisotronic control panel and the
weather station multisense already have an integrated 120-Ω terminating
resistor.
Total length of the RS485 bus: maximum 1200 m. The bus voltage must be at least 20 V at each device. The sensor splitter MASTER must be supplied via a separate power supply unit. The maximum line length between the weather station and the sensor splitter MASTER is 200 m. NOTE: The sensor splitters connected to the sensor bus only receive weather
data when the weather station and the MASTER are in operation.
DC
24 V
230 V AC
Supply line
230 V AC
L N
NYM-J 3x1.5
Terminating resistor 120 Ω
JY(St)Y 2x2x0.8 mm ø
WT RD BK
0V
B
A
BK RDWT YE
Terminating resistor 120Ω
RD BK YE WT
Wisotronic 1-channel
JY(St)Y 2x2x0,8 mm ø
Sensor bus
CAUTION The 24 V output terminals (X10) of
the sensor splitters must not be connected to each other.
BK RDWT YE
Terminating resistor 120 Ω
Wisotronic
Power unit
123456789
Wisotronic
Control panel
BK RDWT YE
BK RDWT
BK RDWT YE
Terminating resistor 120 Ω
Wisotronic
Power unit
123456789
Wisotronic
Control panel
BK RDWT YE
BK RDWT YE
Junction box
On-site
Weather station multisense
JY(St)Y 2x2x0.8 mm ø
24V
0V
B
A
4xAWG 26 C UL black
JY(St)Y 2x2x0.8 mm ø
JY(St)Y 2x2x0.8 mm
ø
JY(St)Y 2x2x0.8 mm
ø
JY(St)Y 2x2x0.8 mm ø
Terminating resistor
integrated
Terminating resistor
integrated
Terminating resistor
integrated
Terminating resistor
integrated
D1X6
S2
X5
1 2 3 4
ON
0V 24V A B
24V 0V B1 A1
X10 X11
D1X6X5
0V 24V A B
Sensor Splitter 2 SLAVE
(Encoding switch3 ON)
S2
1 2 3 4
ON
24V 0V B1 A1
X10 X11
D1X6X5
0V 24V A B
Sensor Splitter n SLAVE
(Encoding switch3 ON)
S2
1 2 3 4
ON
24V 0V B1 A1
X10 X11
Fig. 9 Connection example for Wisotronic

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5.2 Connecting the
WAREMA climatronic®
WAREMA climatronic®weather station
Sensor splitter 1
MASTER
Sensor splitter 2
SLAVE
Sensor splitter n
SLAVE
Power supply
unit
230 V
50 Hz
Sensor bus
Power
supply unit
230 V
50 Hz
climabus 1
Switch actuator
To other bus devices
Power
supply unit
230 V
50 Hz
climabus 2
Switch actuator
To other bus devices
Power
supply unit
230 V
50 Hz
climabus n
Switch actuator
To other bus devices
Fig. 10 Schematic diagram of a unit with WAREMA climatronic®
The connection of a WAREMA climatronic®is shown in Fig. 11. Please note
the following special features when connecting the unit:
The sensor splitter to which the weather station is connected must be sup-
plied via a separate power supply unit.
If possible, always connect the weather station to the sensor splitter that is
acting as the MASTER. Providing a separate power supply unit with its own
on-site fuse protection ensures that weather data will always be sent to the
sensor bus.
NOTE The sensor splitters connected to the sensor bus only receive weather data
when the weather station and the MASTER are in operation.
The 24-V output terminals (X10) of the sensor splitters must not be con-
nected to each other.
The 0-V output terminals (X10) of the sensor splitters must be connected to
each other to prevent potential differences between the connected devices.
Otherwise, long line lengths may result in communication problems.
The weather station has an integrated 120-Ω terminating resistor that can be
connected via a jumper (see documentation of the weather station).
For all sensor splitters to which a WAREMA climatronic®is connected, en-
coding switch 3 must be set to the OFF position. This setting should always
be made with the device switched off.
NOTE Alternatively, the WAREMA climatronic®Sensor Interface can also be used
instead of a weather station.