15
-
DISARMED
– manually using the panel controls or by the command of the network controller;
-
ARMED
:
manually using the panel controls or by the command of the network controller;
automatically when the configuration parameter
Reaming If Arming Failed
is enabled, if
the input resistance is in the normal range.
In the
ARMED
state, the control panel monitors an input circuit for short-circuit and open-circuit
faults, one detector triggering, two and more detectors triggering.
In case of input short circuit, the input switches from the
ARMED
state to the
SHORT
CIRCUIT
(
OPEN-CIRCUIT
) state, respectively. When the input is restored (if the resistance goes into the normal
range), the input automatically switches to the
ARMED
state.
Algorithm of input operation in the ARMED state with a disabled Fire Input Requery
Inhibit parameter:
Upon the detector triggering, the control panel generates the Detector Signal event message and
resets the input state: it powers off the input for 3 seconds. After a delay defined by the
Analysis Delay
after Reset
parameter, the Panel starts evaluating the input-circuit resistance. If the detector is triggered
again within 55 seconds, the input goes into the
FIRE
state, and if two or more detectors are triggered in
the input circuit during this time, it goes to the
FIRE2
state. If no detector triggering is recurred within 55
seconds, the input remains in the
ARMED
state.
When in the
FIRE
state, the input is still monitored during next 120 seconds till the triggering of a
second detector on this input circuit (triggering of a second detector – requery- retriggering of two
detectors), the input goes to the FIRE2 status. If no second detector is triggered or its triggering is not
confirmed, or it quiescent 120 seconds later after the FIRE status, the input stays in the
FIRE
status.
When switching to the
FIRE
state, the triggering of detectors on other inputs are also taken into
account, provided that they belong to the same zone. If upon confirmation of the triggering of the first or
second detector of this input, the other input was already in the
FIRE
state and the detector on it was
triggered no more than 120 seconds ago, this input goes to the
FIRE2
state. Thus, the transition to the
FIRE2
state occur if a confirmed triggering of two fire detectors of the same input or different inputs of
the same zone occurs within two minutes.
Algorithm of input operation in the ARMED state when the Fire Input Requery Inhibit
parameter enabled
Upon detector triggering, the input goes to the
PRE-ALARM
state.
In the
PRE-ALARM
state, the control of the input continues, and if the triggering of the second
detector of this input is registered within the next 120 seconds, the input goes to the
FIRE
state. If the
second detector does not trigger, or it does occur but 120 seconds later after switching to the
PRE-
ALARM
, the input will remain in the
PRE-ALARM
state.
When switching to the
PRE-ALARM
state, the triggering of detectors on other inputs are also
taken into account, provided that they belong to the same zone.
