© 2006 Carlo Gavazzi Industri A/S. All rights reserved
53
G 3800 X036 Operation Manual
August 2006
Description
The purpose of the Smoke Alarm is an alarm system consisting of smoke and fire indicators integrated as
Passive or Active detectors. The wiring makes it possible to replace conventional fire alarm systems.
Smoke detectors are generally included in the system through the objects “Passive detector” or “Active detec-
tor”. The alarm system is automatically alert after elapse of the Reset delay (set with the Reset object), when
the Configuration software has been downloaded or the Mastergenerator has been switched on. The Reset out-
put switches on within this time.
An alarm is triggered off when one or several alarm contacts are activated for more than 10 s. The channel for
the activated alarm contacts (alarm source indication) as well as the alarm output start to flash approx. every
second. By subsequent activation of the reset key, the Mastergenerator switches the channel out of the
system. If contacts are still activated, another alarm is triggered off after elapse of the reset delay.
Note:
Configuration of the object “Reset” is absolutely necessary to ensure correct function.
The status of the alarm contacts can be shown in a simple way on a panel. All that is needed for this purpose
is that the output channels are coded to the addresses of the alarm contacts.
The “Silent Alarm Signal” is intended for sending an alarm to a monitoring centre, but also suitable for SMS
messages.
For alarm purposes, the object Common Siren can also be used. Details can be found in the section
describing The alarm siren/Common siren.
The various smoke alarm objects are set under “Channel function”:
Passive detector:
Normally open input. This object makes it possible to include
passive detectors. When the contact is activated and a “1”-Signal
consequently transmitted on the Dupline bus, an alarm is started.
Active detector:
Normally closed input. This object makes it possible to include
active detectors. When the contact is activated and a “0”-Signal
consequently transmitted on the Dupline bus, an alarm is started.
Reset:
This object makes it possible to include a button to reset the alarm and restart
the system.
If a contact is activated during reset, a new alarm is started after elapse of the
reset delay.
Note:
This object must be configured in order to achieve correct function of
the smoke alarm system.
Alarm siren:
The siren indicates that an alarm has occurred. The channel configured with
this object can be used to output the alarm on any output modules. It usually
activates a relay output through which a siren is switched.
Note:
The alarm output basically flashes.
Silent Alarm signal:
When an alarm occurs, a channel configured with this object is activated for
10 s and can thus be used to activate a telephone or GSM-modem.
2.4.4. Smoke Alarm
• Function: Fire alarm system including Passive detector, Active detector, Reset, Alarm Siren
and Alarm signal
• Application: Wiring of smoke/fire indicators to an alarm system
• Select with mouse (“Smoke alarm”) or short-cut key “S”
