Operation Manual
FT128 Rev 2.4
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are isolated, i.e. sounders, OWS, strobes, etc. and prevents new alarms from
activating the warning devices.
• Alarm devices enabled
When the button is pressed again, all programmable outputs of type "Alarm
devices" will be enabled.
If the “Silence alarm devices” button (inside switch) is left in its isolated state when the
FDCIE door is being closed, the buzzer will beep continuously and the message "
Silence
switch left active
" will be shown in the LCD. This feature is required in NZS4512 standard
to ensure that the door cannot be closed while the alarm devices are isolated. For priority
order see chapter “Information Priority Order” page 19.
Note: The “Silence alarm devices” button on the front display (inside switch) has no
function if the “Silence alarms” Bulgin key in the FT128 cabinet or in the remote fire
brigade panel (see below) is turned to the silence alarms position.
8.2 NZ FB “Silence Alarms” Bulgin key (outside switch)
The New Zealand FB “Silence Alarms” Bulgin key switch is connected to NZ mimic
application board via a programmable input in the I/O matrix board 4582 with the trigger
condition "NZ Silence switch".
The fire brigade Bulgin key switch can be in one of two states:
1. The Bulgin key switch is turned ON (from non-activated to activated state).
• All programmable outputs of type "Alarm devices" are disabled. The
"Silence Alarm Devices” switch in FT128 front display (see above) has no
function.
• LEDs "Fire" (on FT128 front display) changes from blinking to steady
(continuous).
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• The FDCIE built-in buzzer is silenced.
• A fault is generated
30
: "FAULT: FB Silence switch active"
2. The Bulgin key switch is turned OFF (from activated to non-activated state).
• The fault "FAULT: FB Silence switch active"will be Serviced
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.
• Any “Alarm” or “Acknowledged alarm” will be automatically disabled /
isolated, i.e. it must be re-enabled via menu H2/B5-B6) and will be
indicated by LED “General disablement” on the FDCIE front.
• Any “Alarm” or “Acknowledged alarm” will automatically change state to
"Isolated alarm" and in the fire alarm list (presented in the LCD) will "ALM"
be changed to "ISO".
An example:
ISO ZONE-ADDR 12-46 LAST ZONE 12 No. 01
This is a user defined alarm text.
The FDCIE built-in buzzer is re-enabled.
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This is valid also if the fire alarm is activated after the Bulgin key switch (outside switch) is turned ON (Silence
Alarms position).
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Always latched, regardless of if faults are programmed to be not latched.
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Since this fault is always latched, it has to be acknowledged via menu H6.
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