Bolid Signal-10 Manual do Utilizador descarregar pdf (Página 47)

Signal-10 Operation Principles

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¾ Arming Failed

¾ Disarmed

¾ Panic Alarm

An alarm loop of the Type 11 is considered to be in Armed status if it has been armed and its resistance

is within the normal range (see Table 2). Short-time breaking the armed loop within the time intervals

not exceeding:

− 50 ms if the 300-ms Integration Time parameter is set off

− 250 ms if the 300-ms Integration Time parameter is set on

doesn’t cause the device to consider the loop status as an alarm.

If an alarm loop is configured with the nonzero Arming Delay, while being armed this loop initially gets

the Arming Delay status. If the loop has been broken but the delay time has not yet expired then no

alarm is produced.

When the Alarm Delay has expired and if the loop resistance is within the normal range then the alarm

loop is considered as Armed. Otherwise, if the Arming Delay has expired but the loop resistance is out-

side the normal range then the alarm loop gets the Arming Failed status.

If the alarm loop is programmed with the Auto Rearming After Failing parameter being set on, it auto-

matically switches from the Arming Failed status to the Armed status when its resistance has come

back to the normal range for at least 3 s.

An alarm loop of the Type 11 switches from the Armed status to the Panic Alarm status if:

− The loop has been broken for more than 70 ms, the 300-ms Integration Time being set off

− The loop has been broken for more than 300 ms, the 300-ms Integration Time being set on

− The loop resistance has jumped by more than 10%, the 10% Deviation Blocking being disa-

bled

The Panic Alarm status of the alarm loop is indicated only by the relative device LED and can activate a

relay only if the relay is controlled by the executive program Alarm Output 1 (#10) or

Alarm Output 2 (#16), with the relay contacts being opened. The device internal sounder doesn’t pro-

vide any sounds upon a panic alarm.

If the parameter Auto Arming After Alarm is set on for the alarm loop then the loop will be automatically

armed and switches from the Panic Alarm to the Arming Delay status after its resistance being in nor-

mal range for a time interval more than 15 times value of the Alarm Delay configured for the loop (in

seconds).

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Bolid Signal-10 Manual do Utilizador Página 47