System Manual | 2013
VAIE 2000 | Voice Alarm Integrated Systems
113
VAC 2006 • VAR 2006
UK
9. FAuLt WARnInG CondItIon
The VAC 2006 system has a diagnostic routine that monitors constantly availability of the emergency sources and the soundness of the critical
path of the signals providing the functions in emergency conditions.
9.1 SYStEM oPERAtIon And SIGnALLInG In GEnERIC CondItIonS
9.1.1 System signalling due to an existing “Fault Warning Condition”
If, with the system in its normal “quiescent Condition”, the monitoring system detects a cause of a failure, it promptly activates signalling of a
“Fault Warning Condition”, as follows:
• the FAULT LED (visual signal) will light up.
• a BEEP (acoustic signal) will be heard via the monitoring loudspeaker.
• activation of any local output contacts (CONTROL OUTPUTS) that may have been programmed (remote signalling).
• the failure condition (FAULT) will be indicated in the status label on the Report FAULT panel.
9.1.2 System signalling following cleaning of “Fault Warning Condition” (RES)
If the cause of the failure is cleared automatically, without any action on the part of the operator, the system will return automatically to its
“quiescent Condition”, resetting all the signals described above and storing the last failure that occurred as follows:
• The word RES will be shown on the status label of the Report FAULT panel indicating that the failure has been cleared.
9.1.3 Resetting the signal following clearing of a failure (FAuLt RESEt)
To reset a signal referred to a failure that has been cleared and stored:
• From the OPERATOR menu, go to the FAULT panel (point 8.5.3, page 105)
• Carry out a MANUAL RESET of the failure signal as indicated under point 8.5.3.1, page 105.
note:
In the event of failure of a loudspeaker line due to a short circuit, once the line is repaired it is necessary to carry out a MANUAL RESET of the failure
from the OPERATOR menu, in order to re-activate the audio signal on the output of the line concerned.
9.1.4 Recommended procedure during a Fault Warning condition
The procedure to be followed during a Fault Warning condition is the following:
• From the INSPECTION menu, go to the FAULT panel (point 8.4.1, page 95)
• Check the category of the FAULT diagnosed and go to the appropriate sub-panel.
• Check the cause of the failure and, if possible, restore correct operation following the instructions contained in the table referred to the sub-
panel (see points from 8.4.1.2 to 8.4.1.7).
If upset is successfully cleared, termination of the Fault Warning condition will be signalled as follows:
• The FAULT LED will extinguish.
• The output contact involved, if any, will be de-activated.
• The word RES will appear in the status label of the Report FAULT panel to show that the failure has been cleared.
Upon completion of the procedure, it is advisable to reset the signal for the failure that has been cleared, as indicated under point 9.1.3.
9.2 SYStEM oPERAtIon And SIGnALLInG In tHE EVEnt oF A SPEAKER LInE FAILuRE
A failure of the speaker line may be due to various different causes. The associated signalling and the activities required are described under
point 8.4.1.2
LOUDSPK. LINE FAULT panel
. If the problem is due to a variation in the impedance, the VAC 2006 will continue to broadcast the
audio signal output from the zone. If it is due to a short circuit on the line, the system will disconnect the failed line and broadcast the audio signal
on the other line serving the same zone.
