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FIRE ALARMS

Conventional Fire Alarm Systems

The Signal-10 can operate as a conventional fire control if at least one of its alarm loops is configured

with the Type 1, or 2, or 3. For such the loops the device can recognize the following statuses:

¾ Armed

¾ Arming Delay

¾ Arming Failed

¾ Disarmed

¾ Fire Signal

¾ Fire Prealarm

¾ Fire Alarm

¾ Trouble

For loops of the Type 12 light indication depends on the type of programmed events.

Sound signaling is provided only for fire and intrusion alarm loops (not for auxiliary loops). The sounder

behavior depends on the most dangerous event which is detected by all the device alarm loops.

Table 8 (see the page 51) shows the behavior of the 1 – 10 LEDs of the device which indicates the cur-

rent statuses of the relative alarm loops, while Table 9 (see the page 52) describes the characteristics

of sound signals which are output by the device for some alarm loop statuses.

A fire alarm loop of the Type 1, 2, or 3 is considered to be in Armed status if it has been armed and its

resistance is within the normal range (see Table 2). Short-timed breaking of armed fire alarm loop of the

Type 1, or 2, or 3 within 250 ms doesn’t cause the loop status to be considered as a fire alarm.

If a fire alarm loop is programmed with non-zero arming delay, the loop being armed switches to the

Arming Delay status. Until the Arming Delay has expired, breaking the loop also doesn’t cause the loop

status to be considered as a fire alarm.

When the Arming Delay has expired and provided that the loop resistance is within the normal range

(see above), the loop switches to the Armed status. If, otherwise, the loop resistance is out of normal

range, the loop switches to the Arming Failed status.

If the Auto Rearming After Failing parameter is set on for the alarm loop, the loop automatically switch-

es from the Arming Failed status to the Armed status after its resistance being in norm for more than

3 s.

If an armed fire alarm loop has been broken for more than 300 ms, the device detects loop breaking

and switches the loop to one of the following statuses:

Fire Signal A smoke (normally open) detector has actuated within a fire alarm loop of

the Type 1 or 2

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Bolid Signal-10 Manual de usuario Pagina 40