SAFERA Airis, Руководство по установке

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5.1.3 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 diagram illustrates the connection of one AUX channel. AUX1 and AUX2 are similar.
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HINT
Most building automation systems are equipped with inputs that are designed in a
way that they do not need the pull-up resistors. One example of this kind of input
is a 2-terminal input designed for connecting between relay contacts (potential
free connection). In this kind of situation the AUX can usually be wired directly to
the automation system. The only thing that must be observed is the current flow
direction (IN >OUT) and that the current passing through must be limited to less
than 10 mA by the automation system.
5.1.4 AUX-signal logic interpretation
The AUX-signals can be interpreted in many ways:
• Simple ON/OFF information for any type of alarm (heat, fire or water leak). This
can be read directly from AUX1 output.
• Simple ON/OFF information for cooking activity. This can be read directly from
AUX2 output.
• Simple ON/OFF information for a fault condition. This can be read directly when
both AUX1 and AUX2 are connected in series to the same line.
• 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.
+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
5.1.5 OUTPUT signals in normal AUX-mode
AUX1
state
AUX2
state
Safera system status
OFF OFF Nothing to report
No active cooking or dangerous situation detected.
OFF ON Normal cooking detected
This state will activate immediately when the stove is powered.
It will turn off in roughly 1 to 30 minutes after the cooking has
stopped, depending on how hot or powerful the cooking has
been. This delay serves two purposes:
1) the signal can be used for optimally controlling the cooker hood
fan or a kitchen extractor fan, and
2) the signal OFF->ON steps can be used for counting the amount
of cooking processes.
ON OFF Alarm
Dangerous situation detected: cooking hazard, timeout or
extreme stove temperaure has caused a power cutoff from the
cooker. Also, water leakage alarm will trigger this state. This state
will be cleared only when the user presses the OK-button of the
Sensor Unit.
ON ON Service needed
In most cases, power to the cooker has been cut off until the fault
is resolved. This includes all critical Sensor Unit or Power Control
Unit faults. Press the OK-button of the Sensor Unit to see the exact
cause for the fault.
5.1.6 Inversed AUX-mode
Inversed AUX-mode = all ON signals indicated as OFF and vice versa in the table
above.
Inversed signal mode can be useful for example when the maximum reliability for
fault detection is needed: if the wires are broken, or all electricity is cut off, the out-
put will be the same in as the AUX1:OFF & AUX2:OFF “fault condition”.
⚐ ATTENTION
The inversed mode will create a larger load for the connected system, because
both signals will be ON most of the time. For example, this may be harder for bat-
tery operated external clients. However, it will not affect the Safera system's own
battery life.