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Siemens Building T
echnologies
Cerberus Division
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6.4
Initialization
To initialize the detector, a reed relay located near the internal response indicator (A) is
activated with a magnet. The initialization is signalled with a flashing response indi-
cator.
Reed relay rear of the
Magnet
response indicator
Fig. 36 Initialization with the magnet
During the initialization the working range of the electronics («RANGE»), the compensa-
tion value, all smoothing algorithms and diagnostics, and the status are set to an initial
value. All required thresholds are calculated. At the same time a self-test is performed.
Initialization with the magnet.
Place the magnet directly behind the response indicator (AI) in order to activate the
Reed relay (Attention! Black point = magnet).
As soon as the response indicator flashes, the compensation value is formed
(approx. 30 sec.). During this time the measurement should not be interfered
with: No manipulations on the detector and no interruption of the IR beam.
When the initialization is completed, the AI turns off. If any procedural error has been
made, a new initialization can be started at any time with the magnet.
Test alarm with test filter.
Place the test filter immediately in front of the detector and cover the entire measure-
ment window. When an alarm is triggered, the response indicator flashes after approx.
5 seconds (interactive), or after approx. 10 seconds (collective).
The commissioning is now completed.
6.5
Addressing in the interactive system
The addressing is the same as in stationary equipment. The addresses of the individual
detectors are assigned in the sequence in which each detector is set into alarm condi-
tion. But first the control unit must be switched to «Address distribution mode».
A test alarm can also be combined with the addressing.
