64
ID-E316-001GB
Actuation of a fire warning device generates a 1
st
stage alarm which is signalled acoustically and optically
during the T1 time allocated for the personnel to react and acknowledge the alarm
(ACKNOWLEDGEMENT push button). If the personnel does not react during the T1 time, a 2
nd
stage
alarm is evoked. Personnel's reaction prolongs the duration of a 1
st
stage alarm with the T2 time
measured from the moment the 1
st
stage alarm is acknowledged. This alarm objective is to investigate
the current fire danger.
After the T2 time elapses, if the personnel has not reset the alarm by accessing the system at the 2
nd
level and pressing the backlit RESET push button, the 2
nd
stage alarm is generated. The T1 and T2 times
may be programmed taking into account individual features of the protected facility, in accordance with
the programming manual (PM).
Two-stage alarming switches into one-stage alarming (immediate 2
nd
stage alarm) when the control
panel operates in "PERSONNEL ABSENT” and "DELAYS OFF" mode.
8.1.4 One-stage alarm with single reset (40/60 sec.) of a fire warning device (variant #3)
After a fire warning device is actuated, the control panel waits for 40 seconds for another fire warning
device in the same zone to be actuated. Then the control panel generates a 2
nd
stage alarm. Otherwise,
the control panel resets the device treating its actuation as false and waits for other signals from the
facility. If, during 60 seconds, the same or different fire warning device is not actuated in the same zone
again, the control panel generates a 2
nd
stage alarm.
If the same or different element in the same zone is not re-actuated during 60 seconds, the control
panel will treat the previous actuation as a false alarm.
The above-mentioned variant must be implemented for momentary occurrences of fire factors not
connected with the fire.
8.1.5 One-stage alarm with single reset (60 sec./8 min.) of a fire warning device (variant #4)
After a fire warning device is actuated, the control panel waits for 60 seconds for another fire warning
device in the same zone to be actuated. Then the control panel generates a 2
nd
stage alarm. Otherwise,
the control panel resets the device treating its actuation as false and waits for other signals from the
facility. If, during 8 minutes, the same or different fire warning device is re-actuated in the same zone,
the control panel generates a 2
nd
stage alarm.
If the same or different device in the same zone is not re-actuated during 8 minutes, the control panel
will treat the previous actuation as a false alarm.
The above-mentioned variant must be implemented for momentary occurrences of fire factors not
connected with the fire.
8.1.6 Two-stage alarming with single reset (40/60 sec.) of a fire warning device (variant #5)
After a fire warning device is actuated, the control panel waits for 40 seconds for another fire warning
device in the same zone to be actuated. Then the control panel generates a 1
st
stage alarm. Otherwise,
the control panel resets the device treating its actuation as false and waits for other signals from the
facility. If, during 60 seconds, the same or different element is re-actuated in the same zone, the control
panel generates a 1
st
stage alarm and the alarming procedure is the same as in variant 2.
If the same or different element in the same zone is not re-actuated during 60 seconds, the control
panel will treat the previous actuation as a false alarm.
The above-mentioned variant must be implemented for momentary occurrences of fire factors not
connected with the fire.
8.1.7 Two-stage alarm with single reset (60 sec./8 min.) (variant #6)
Содержание 4000
Страница 25: ...ID E342 001GB 25 Fig 5 3 MSL 1M line module overview ...
Страница 96: ...96 ID E316 001GB Fig 9 16 Non potential output exemplary connection ...
Страница 101: ...ID E342 001GB 101 Fig 10 2 MSI 48 and MSI 48 Ed 3 network modules ...
Страница 103: ...ID E342 001GB 103 Fig 10 3 Four control panels network connection with two pairs of cables ...
Страница 104: ...104 ID E316 001GB Fig 10 4 Four control panels network connection with a pair of optical fibres ST type contact ...
Страница 105: ...ID E342 001GB 105 Fig 10 5 Four control panels network connection with two pairs of optical fibres SC PC type contact ...