FBT 37483_VAIE2550_manual1.pdf - Manuale (Pagina 97)

8-11
USING THE SYSTEM
UK
8.5.1.3 LOUDSPK. LINE FAULT
Diagnostics of line speaker units
From the FAULTS panel (point 8.5.1), press numerical key 1 and
access the panel for viewing the loudspeaker line diagnostics: the
diagnostics for each output zone are shown as indicated in the
following table.
Press ESC to return to the FAULTS panel.
Note 1:
It may happen that an occasional short circuit of a single line does not give the diagnostic system sufficient time to identify the line that
has failed. In this case, the message “Short A+B” may be displayed.
Note 2:
“Impedance Hi” and “Impedance Low” failures are not reported if the tolerance is set at a higher level than the measured variation of the
impedance or if the test is disabled. For details concerning programming, see the SET TOLERANCE panel (point 8.7.2).
8.5.1.4 VOICE ALARMS FAULT
Diagnosing faults of the VES emergency sources
From the FAULT panel (point 8.5.1), press numerical key 2 and
access the panel for viewing the diagnostics of the VES emergency
sources. The diagnostic state of each item monitored is reported, as
shown in the following table.
For some items of equipment it may be necessary to access the sub-
panel, by pressing the corresponding numbered key.
Press ESC to return to the panel FAULTS.
Label
Part being
diagnosed
Signal Cause Action required
ALL
OK No failure -
Zone 1 Loudspeaker lines
Zone 1 Short A Short circuit on the line connected to output
A
Eliminate the short circuit and
carry out a MANUAL RESET of
the FAILURE signal (from the
OPERATOR menu)
Zone 2 Loudspeaker lines
Zone 2 Short B Short circuit on the line connected to output
B
Zone 3 Loudspeaker lines
Zone 3 Short A+B Short circuit on both lines of the zone (Note
1)
Zone 4 Loudspeaker lines
Zone 4 Impedance Hi Impedance level higher than acquired value
detected, beyond the tolerance set during
configuration (Note 2)
Check the connections of the
speaker units and if necessary
repeat the line acquisition procedure
(ACQUIRE IMPEDANCE)
Zone 5 Loudspeaker lines
Zone 5 Impedance Low Impedance level lower than acquired value
detected, beyond the tolerance set during
configuration (Note 2)
Zone 6 Loudspeaker lines
Zone 6 Res. imp. Hi Failure (“Impedance Hi” signal) cleared Access the Report > FAULTS panel
from the OPERATOR menu and
carry out a MANUAL RESET of the
FAILURE signal
Res. imp. Low Failure (“Impedance Low” signal) cleared