5.
DESCRIPTION AND IDENTIFICATION OF THE SYSTEM STATUS
Proevac was designed to manage several operational conditions according to the EN54-16 soecifications. The current state of the system
is displayed by the leds on the master unit, slave units and microphone stations. Additionally the dot-matrix display on the master unit
shows all details. Finally, two leds on the zone modules indicate the state of the single zone.
QUIESCENT State:
This is the idle state where the system belongs when no alarm, no fault conditions and no
general announcements are being played. In the idle state, the system only plays the background music
applied to the RCA terminals on the master’s back panel. When the system is in a quiescent state, only the
green led is ON, indicating that the system is powered.
BUSY State:
This is an operational condition where one or more zones are activated to play general
recorded messages or general spoken announcements through a microphone station. According to the
purposes of a fire alarm equipment, the BUSY state is compared to the QUIESCENT state, since no fire alarm
messages are being played. For this reason, the front panel of the master unit will show just the green led
ON.
ALARM State:
The system switches to the ALARM state in case a fire alarm announcement is triggered fron
the dedicated input contacts or spoken through a microphone station configured as a firemen’s call stations.
In case of a fire alarm, the red led is ON.
FAULT Condition:
The fault condition indicates that the diagnostic system has detected at least one failure.
The visual indication – yellow led ON – is accpompained by an acoustic signal. If the fault refers to a power
amplifier or to a loudspeaker line, the FAULT led on the zone module(s) where the failure was detected will
turn ON. The green led will stay ON, indicating the system is powered.
The system status is also visible from the microphone stations, please refer to the dedicated section in this manual for further details.
NOTE: if both yellow and red leds turn to ON, the system has detected both a fire alarm and a fault condition.
In addition to the status indications provided by the front panel and rear panel leds, the system reports on the dot-matrix display all
details of the status in which it belongs.
QUIESCENT or BUSY status
The system is idle and is eventually playing background music or general
announcements. No faults are detected and no fire alarms are engaged.
Eventually, the triangle on the right will flash to indicate that a fault was
detected but now is recovered. Please refer to the Logs table for further
details.
ALARM status
The display indicates the list of the zones where a voice alarm has been
activated.
FAULT status
The display indicates the list of the faults that are present.
Please refer to Logs table for further details.
FAULT and ALARM status
The display indicates the list of the faults and voice alarm that are currently
present.
Please refer to Logs table for further details.
POWER
VOICE ALARM
FAULT WARNING
POWER
VOICE ALARM
FAULT WARNING
POWER
VOICE ALARM
FAULT WARNING
POWER
VOICE ALARM
FAULT WARNING
