Paso PAW4500-VES Series, Руководство пользователя

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45 System manual PAW4500-VES Compact systems
EN
PAW4500-VES
9. FAILURE STATUS
THE PAW4500 ͳ VES HAS DIAGNOSTIC ROUTINES THAT MONITOR CONTINUOUSLY THE AVAILABILITY OF EMERGENCY
SOURCES AND THE INTEGRITY OF CRITICAL PATHS OF THE SIGNALS ENSURING SYSTEM OPERATION IN EMERGENCY
CONDITIONS.
9.1 SYSTEM OPERATION AND SIGNALLING IN A GENERIC FAILURE CONDITION
• SYSTEM SIGNALLING DUE TO AN EXISTING “FAILURE CONDITION”
When the monitoring system detects a fault during the normal “Idle State” operation, it promptly activates signalling of the
“Failure Condition” as follows:
- the FAULT LED lights up (visual signalling).
- sending out of a beep by the monitor speaker (acoustic signal).
- activation of the local output contacts, if programmed to send signals to an external peripheral unit.
- location of the fault (FAULT): the faulty device and the type of fault are shown on the menu pages under the item
report> FAULTS .
• SYSTEM SIGNALLING FOR RESUMPTION FOLLOWING A “FAILURE CONDITION”
If the cause of the fault no longer exists, the system resumes automatically its “Idle State”, deactivating all the above signalling
and storing the information concerning the last fault. The word RESUMED is shown in the menu pages under the item
report>
FAULTS r eferred to operation of the device that was previously faulty.
• CANCELLING THE ACOUSTIC FAULT SIGNALLING AND OPERATION RESUMPTION SIGNALLING
To cancel the acoustic signalling of a current fault:
- go to the INSPECTION, OPERATOR or CONFIGURATION menus.
- press the
RESET button brie fl y to halt the beep.
To cancel the signalling of the fault of which a report has been stored and that no longer exists (operation has been RESUMED),
there must be no faults under way or the beep must already have been stopped. Therefore:
- go to the INSPECTION, OPERATOR or CONFIGURATION menus.
- press the RESET button brie
fl y to reset all the signalling of faults after which operation has been resumed.
Note : In the event of a fault of a loudspeaker line due to a short circuit, once the line has been repaired, it is necessary to
carry out a MANUAL RESET in order to re-activate the audio signal on the output of the concerned line:
- Go to the OPERATOR menu or to the CONFIGURATION menu.
- Select
the report> FAULTS menu followed by >>Loudspeaker line . Then, on the ‘ Fault zone impedance report ’ screen,
press the RESET key and hold it down for at least two seconds
9.2 SYSTEM OPERATION AND SIGNALLING WITH A FAULT ON A LOUDSPEAKER LINE
A fault on a loudspeaker line may be due to any of several causes, such as high impedance, low impedance or a short circuit.
If it is a matter of a change in the impedance, the
PAW continues to send out the zone output audio signal. If, on the other hand,
there is a short circuit, the system disconnects the faulty line of the zone and continues to send the audio signal on the other
line (if any) of the same zone.