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Alarms and failures
Fig. 38: DET-AC III Slave
The system’s operating state is monitored and displayed by the superordinate
system. If there is a failure or an alarm present, this is shown in the display of the
superordinate system.
Alarm messages
The superordinate system relays the signal for extinguishing to the
DET-AC III Slave. The signals can be taken off of the "connection technology" card
and processed further.
Failure messages
The system monitors the most important functions. Failures are shown via the
superordinate system and can be transmitted via the potential-free contacts to an
external display or controller.
NOTICE
Malfunction due to failure!
Correct functioning of the system is not ensured if a failure exists. Under certain cir-
cumstances, no fire can be detected or extinguished if a failure message occurs.
● Rectify the cause of the failure message immediately.
NOTICE
Faulty release due to function test!
A function test can result in a faulty release and thereby cause property damage.
● Block the system prior to a function test. To this end, switch the blocking switch
(Fig. 39 /4) to "Agent disconnect [blocked]" (Fig. 39 /
Ⅱ
).
● Checking the blocked state:
– The upper yellow LED (Fig. 39 /2) lights up.
The lower yellow LED (Fig. 39 /3) also lights up if a door fitted with a door
contact switch is open.
–
„Tank activation failure”
is shown in the display.
● Prior to removing the blocking, make sure that the upper red LED (Fig. 39 /1) is
not
illuminated as the extinguishing process will otherwise be initiated immedi-
ately.
Alarms and failures
Operating Instructions / DET-AC III Slave / 916007 / 05-2016 / en_US
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