SAFERA Connection Hub User manual
1
20863_01A
User manual
Safera Connection Hub for Safera Siro IN-line and Siro R
32
1. Connection Hub Speciications
Safera Connection Hub enables two extra features for Safera Stove Guards:
1. Auxiliary ON/OFF output with two signals and four states.
These signals are called AUX1 and AUX2. They can be used to send real-time
status information to a building automation system. They operate with optoisola-
tors and thus provide a potential-free contact which is naturally compatible with
almost all automation and security systems.
2. Container Unit (CTU) connection for the optional liquid extinguishing system.
This applies only to systems itted with the necessary tubing and nozzles (Safera
Siro IN-Line).
Electrical speciications
• AUX outputs are optoisolated, thus there is no galvanic connection between the
Safera system and the automation system.
• When the AUX outputs are active (ON), the optoisolator’s output transistors will
be held in conducting mode, thus enabling current low from IN to OUT. This
connection can be used exactly as a relay’s contact, however the direction and
amount of the current low must be controlled as speciied below.
• Maximum IN-OUT voltage is 24 VDC.
• Maximum IN-OUT current is 10 mA.
• Only DC voltage between IN-OUT, no AC is permitted!
AUX
IN 1 = Yellow
OUT 1 = Green
IN 2 = White
OUT 2 = Brown
Dimensions
110 x 55 x 22 mm
Power OUT
(Safera Siro IN-line or Siro R sensor unit)
CTU
Optional
extinguisher unit
Power IN
(Safera Power
Supply)
Content
1. Speciications
2. Connection to Safera system
3. AUX-connection to Automation or Security system
4. Installation and testing with Safera Siro and Siro R
5. Removing the Connection hub or CTU from Safera system
54
PWR OUT connection
to Safera Siro / Siro R sensor unit
2. Connection to Safera System
Connection Hub shall be installed between the Safera Sensor Unit and Power Supply.
CTU connection
to Safera CTU (optional)
PWR IN connection
to Safera power supply
AUX-connection
to an Automation
or Security
System
+3 ... +24 VDC provided by the
automation system
Pull-up recommended to provide
~1mA (absolute max. 10mA)
Logic input of the automation
system
Signal ground of the automation
system
IN
OUT
SAFERA
Example connection of one AUX-output
In this case the home automation system’s logic input is pulled to ground potential
when the AUX-output signal is active. Note that the maximum current pass in the
optocoupler is 10 mA!
The above diagram illustrates the connection of one AUX channel.
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4. Installation and testing with Safera Siro
and Siro R
1. Connect all cables according to the pictures.
2. Power up the system by connecting the power supply (the system should start
normally).
3. Press the OK-button on the Sensor Unit and check the color and amount of blinks
on the light bars is correct according to these codes:
LED Status Remedy
One green
blink
No Connection Hub detected. Check the cables and
system compatibility.
Two green
blinks
Connection Hub is detected and
working OK, but no CTU connection
is present.
Three green
blinks
Connection Hub is detected, and
also a CTU is connected. Everything
is working OK. If you remove the
CTU after this, an error will be
raised (two red blinks).
One violet
blink
Problem with the communication
between Sensor Unit and
Connection Hub.
This will be raised if a
Connection Hub is later
removed from the system.
Two violet
blinks
Connection Hub internal failure, for
example component defect.
The Connection Hub is
damaged and must be
replaced.
Three violet
blinks
Connection Hub has detected that
the Power Supply of the Safera
System is not working reliably or
not providing enough power for a
reliable extinguish launch.
The Power Supply must be
replaced.
One red blink The CTU service interval (5 to 10
years) has been reached.
The CTU must be replaced.
Two red blinks Connection Hub has lost
connection with the CTU. The CTU
has been removed or the cable is
damaged.
Replace the CTU and/or
cable if necessary.
Three red
blinks
The CTU has been emptied because
of a ire alarm.
The CTU must be replaced.
OUTPUT signals
AUX1
state
AUX2
state
Safera system status
OFF OFF Nothing to report: no active cooking or dangerous situation
detected.
OFF ON Normal cooking detected.
ON OFF Alarm (dangerous situation detected: cooking hazard or
water leakage).
ON ON Alarm (ire detected and liquid extinguish triggered).
3. AUX-connection to an Automation or
Security System
The AUX signals can be interpreted in many ways:
1. Simple ON/OFF information for any type of alarm (heat, ire or water leak). This
can be read directly from AUX1 output.
2. Simple ON/OFF information for cooking activity. This can be read directly from
AUX2 output.
3. Simple ON/OFF information for ire extinguishing activity. This can be read
directly when both AUX1 and AUX2 are connected in series to the same line.
4. Four-state output according to the table below. This can be used by reading both
AUX1 and AUX2 separately into the automation system and using internal logic
to decide the state.
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4.1 Testing AUX-channles with home automation systems
1. Make a factory reset for the sensor
unit: while pressing and holding
the adjustment mode button ❼,
press irst the OK-button ❷and
then the child proof lock button
❶. After a couple of seconds, the
indicator light panels ❽should lit
purple.
2. While the indicator light panels ❽
are lit purple, test the AUX-chan-
nels:
• To activate AUX1 (alarm), press and hold the child proof lock button ❶
• To activate AUX2 (cooking on), press and hold the OK-button ❷
3. When you have inished testing, press the adjustment mode button ❼and pair
the sensor unit again with the PCU normally according to the installation manual.
5. Removing the Connection Hub or CTU
from a Safera System
Connection Hub and CTU cannot be removed by normal means. The system’s oper-
ating principle is that once they are installed, their removal will always raise an error
event. In a special case where removal is necessary, contact local Safera Support for
instructions.
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