Brooks Firetracker FT420, Техническое руководство

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Technical Manual
FT420
– Iss 2.4
36
Location LED Indicator LED Pattern
10
Description
Earth Fault
Flash 1 A leakage between the 0V and the earth is detected.
Flash 2 A leakage between the +24V
DC
and the earth is detected.
External Strobe
Fault
Flash 1 An open circuit fault is detected in the external strobe wiring.
Flash 2 A short circuit fault is detected in the external strobe wiring.
OWS Fault on the
OWS Display board
Warning System
Fault on the Main
Display board
OWS Fault
Warning System
Fault
Steady ON Multiple OWS faults detected.
Flash 1 OWS Speaker or 24V
DC
output fault.
Flash 2 OWS bi-colour strobe output fault.
Flash 3 OWS auxiliary switch input fault.
3.3.3 Buzzer Indicating Patterns
The CIE buzzer uses the following patterns to alert different system conditions.
Table 24 Buzzer Indicating Patterns
Name Period On Time Off Time
Alarm 3s 2s 1s
Key Pressed 40ms 40ms Not ON
Steady ON Always ON
3.4 CIE Signalling Patterns
3.4.1 Optional OWS messages
The standard format of the OWS provides the T3 evacuation tone and message in alarm conditions.
The alert tone / message can be activated manually from the OWS Front Display. Alternatively, it can
in auto mode be configured to activate for 3 minutes followed by the T3 evacuation tone / message
until the alarm resets
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. This function has to be configured via the PC configuration tool V3.2 or higher.
Table 25 OWS Tone and Voice Messages
Audio
Indication
Type Active conditions Description
Evacuation
T3
T3 Tone
and voice
message Alarm condition or
manual activation via
the front display
Repeat the tone below for 4 times.
Sweeping from 500-1200Hz with the ON/OFF time of 0.5s, repeated
for 3 times, and then followed by an additional 1 second silence.
Then the following evacuation voice message:
“Attention, attention, fire alarm evacuate now”
When the voice message is completed, the tone repeats again.
Alert
Alert tone
and voice
message
Alarm condition when
the 3 minutes delay
option is selected
followed by T3
evacuation or manual
activation via the front
display
Repeat the tone below for twelve times.
Continuous tone at 420Hz with the ON/OFF time of 0.6s, repeated for
three times.
The alert voice message follows.
“Attention, attention, a fire alarm has been detected within the
building. Standby for further instructions”.
When the voice message is completed, the tone repeats again. If 3
minutes delay is selected, the alert tone will automatically change to
the evacuation tone.
11
Refer to the OWS opti
on “Alert to evac after 3 minutes“ in the configuration software Chapter “Configuration Setup”
page 62