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15.7
Delayed Alarm
Delayed alarm is an option that can be enabled via EBLWin for a specific alarm point. Two
applications for delayed alarm are shown below.
15.7.1
Standard Alarm Delay Applications
In some premises, delayed fire alarm activation from analogue smoke detectors can be
used to avoid nuisance alarms. The delay time will be added at the end at of the alarm
algorithm when a fire alarm normally would have been activated in the FDCIE.
Each analogue detector in the system can be programmed (in EBLWin) to delayed fire
alarm activation, "Delayed alarm" check box in the detector properties must be ticked. (Heat
detectors and manual call points must not have delayed fire alarm activation). The delay
time interval can be set (in EBLWin, System Properties). In this application, the time delay
must be as short as possible (less than 30 seconds). In fact, if the FT1020G3 is connected
to the brigade, it is not recommended to use this function.
The Delayed alarm will be activated when the delay time countdown has started and will
be activated until the delay time has run out and a normal fire alarm is activated. No outputs
will be activated.
An alarm point has to be in "fire alarm state" for the duration of the delay time, in order to
activate a fire alarm in the FDCIE. If an alarm point restores back to "normal state" during
the delay time, the delay time will reset and start again when the alarm point activates
another "fire alarm".
In case of a Delayed alarm, the following occurs:
The buzzer in FT1020G3 sounds 0.8 sec. each 5
•
Outputs programmed for delayed alarm will be activated.
•
In the FDCIE display, a presentation number (zone/address) is shown (for the first
•
delayed alarm). Also, a user definable text message (= the alarm text for fire alarm)
is shown (if programmed).
Example; Delayed alarm zone 123, address 45 (within zone 123):
Zone
123-45
User definable alarm text for 123-45
Menu
Function
The presentation number is automatically followed by "SMOKE" depending on the type of
alarm point (i.e. SMOKE, HEAT, MULTI or MCP).
Note: The text "Menu" for the soft key "P5" is visible in the display, only if the door in the
CU is open.
If more than one Delayed alarm is activated, the LEDs "SEVERAL ALARMS" are blinking
and the Delayed alarms will be automatically scrolled (each 5th second).
Delayed alarms are automatically reset see chapter "Alarm Reset", page 68.
Delayed alarm
Address
SMOKE
63
Operation Manual
FT1020G3 Rev 2.10.4
sec. (0.8 / 5 sec.).
th
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