Front Panel Indicators
Four LED system status indicators on the front panel are visible through the clear
window in the panel door. They are located as shown in Figure 1.
AC ON Indicator
The green AC ON indicator is on continuously when AC power is connected to the
control panel and the electrical circuit breaker inside the enclosure is on (not switched off
or tripped by an overload).
FAULT Indicator
The amber FAULT indicator turns on and remains on when a trouble condition exists. A
trouble condition is defined as existing when any of the following occur:
The system is disarmed.
Failure of any internal tests.
Existence of an external trouble as defined in Table 1.
The control panel can be programmed such that the FAULT indicator and trouble relay
will latch if a fault is detected. The FAULT indicator will remain on until either the
RESET button is pushed, or the panel is disarmed and re-armed, even if the trouble is
cleared. This feature allows intermittent troubles to be detected without continuous
manual monitoring.
The FAULT indicator will not turn on if an alarm condition is present prior to the detection
of a Trouble condition.
When the FAULT indicator turns on, the trouble relay will de-energize unless the trouble
is a loss of AC power or a battery fault, in which case the warning relay will de-energize.
Description
Normal Operation
FAULT Indicator OFF
Trouble Condition
FAULT Indicator ON
AC Power, 120 Vac input*
102 Vac< U < 132 Vac
U < 102 Vac, U > 132 Vac
AC Power, 240 Vac input*
204 Vac < U < 264 Vac
U < 204 Vac, U > 264 Vac
Battery Voltage
*
+10.2 Vdc < U < +13.2 Vdc
U < +10.2 Vdc, U > +13.2 Vdc
Battery Connection
**
Connected
Not
Connected
Battery Reversal
Not Reversed
Reversed
EED Circuit
100% Continuity, No Grounds
Open Circuit, Ground and/or Short
FAB-13 Supervised Circuit
500
< R < 2,400
R < 500
, R > 2,400
Detection Circuits
100% Continuity, No Grounds
Open Circuit, Ground and/or Short
FAB-3 Current Draw
17 ma < I < 3 ma
I < 3 ma
Initiator Circuit Capacitor
Fully Charged
Not Satisfactorily Charged
Extinguisher Low Pressure
Application Dependent
Application Dependent
*
Five second turn-on delay
**
Up to three minute turn-on delay
Table 1: FAULT Indicator Operation – External Faults
FENWAL
Protection Systems
FSS/MC-519 Rev BC
Page 9
