User’s manual
Fault signals 69
Appendix
B
Fault signals
The faults listed below are the faults that may be shown when accessing the user menu:
View, Faults ongoing, Faults log
Fault Signalling on keypad Occurs when... Restores when ...
Control
panel event
Battery fault
Low battery
The backup battery is low
(voltage below 10.4V)
The backup battery is charged
(voltage above 11.4V)
Yes
AC Mains failure
Mains failure
The primary power supply 230V~ fails
The primary power supply 230V~
is restored
Yes
Telephone line down
Tel. line down
The land line is not working The land line restores Yes
Jamming
Jamming
Wireless interference detected Wireless interference cleared Yes
Low battery on wire-
less zone
Low WLS
(
a
)
The battery of a least one wireless detector
must be replaced
All the wireless detectors are run-
ning with sufficient power
Yes
Wireless zone loss
WLS zone loss
Loss of at least one wireless detector has
been signaled (monitoring time exceeded)
All the wireless detectors are
present
Yes
Nexus GSM dialer
faults
Nexus fault
(
b
)
One of the faults below is present
None of the faults below are
present
No
Insufficient cover
No signal
The GSM network signal is insufficient / No
GSM module commu-
nication fault
GSM module fault
The GSM module of the Nexus dialer is not
functioning properly.
/No
SIM communication
fault
SIM commun.fault
The SIM card does not respond or is not pres-
ent.
The SIM card PIN is not disabled.
/No
Low credit
Low credit
The credit remaining on the SIM card inserted
in the Nexus is below the minimum credit
threshold.
/Yes
Provider unavailable
ProviderUnavail.
The GSM network provider of the SIM in use
is unavailable.
/No
GPRS connection lost
IP conn. lost
NEXUS detects connection problems on GPRS
network
/No
Nexus/3GP battery
inefficient
Low battery
The buffer battery of the Nexus/3GP module
is inefficient or missing
The backup battery is charged No
Contaminated smoke
sensor
Detector dusty
(
a
)
The smoke chamber of at least one of the
Air2-FD100 smoke detectors is contaminated
by dirt or dust.
The contamination level of all
detectors is below the pro-
grammed threshold
Yes
Violation of zones
with faults
Faults on zones
Violation has occurred on one or more zones
with the “Fault zone” option enabled.
All zones with the “Fault zone”
option active have reset
No
Faults on BUS
sounder/flasher
Sounder faults
(
c
)
One of the faults below is present
None of the faults below are
present
No
Horn damaged
Horn fault
A defect/damage has been detected on the
horn/sounder.
/No
Sounder/flasher bat-
tery low
Sounder lowBatt.
A low-voltage value has been detected on the
sounder/flasher battery.
If the voltage drops below 10V, the device will
inhibit the sounder and activate only the
flasher (in the event of an alarm). If the volt-
age drops below 8V, the device will inhibit
both the sounder and the flasher.
/No
Internal resistance of
the sounder/flasher
battery too high
Battery battery
An excessive internal resistance has been
detected on the sounder/flasher battery. This
type of deep fault indicates corrosion inside
the battery, therefore, the battery must be
replaced.
/No
Internal resistance of
battery too high
Int. Resistance
The internal resistance of the battery has
exceeded the R
i max
value.
The internal resistance of the
battery returned to below the R
i
max
value.
Yes
Short-circuit on bat-
tery
Battery shorted
A short-circuit condition has been detected on
the battery connection terminals
The short-circuit condition is no
longer present
Yes
Battery disconnected
Battery disconn.
The buffer battery is disconnected The buffer battery is connected Yes
Power-supply over-
load
PwSupplyOverload
Output overload is detected on the power-
supply unit
The electrical load returns below
the allowed limit
Yes
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