MAN1544-5
10
2.6
Indicators
–
Front Panel
All indicators are clearly visible at all times. If flashing indicators are used the on / off periods are >0.25
seconds and the flash frequencies are not less than:
➢
1Hz for Alarm indications.
➢
0.2Hz for Fault indications.
If the same LED is used to indicate both fault and isolate conditions the LED will flash for fault and be steady
for isolate with isolate having priority.
All indicators are steady unless otherwise stated.
2.6.1
Status Indicators
There are eight indicators within the system status area of the front panel;
Power
–
Green Indicates mains power is available to the FACP.
Power Fault
–
Yellow Common fault to either the mains or DC system power
supply.
System Fault
–
Yellow Indicates a failure of the FACP to provide mandatory
functions, (software failure).
Earth Fault
–
Yellow Is an indication only to warn of a fault to earth that may affect
a mandatory function. A plug jumper facility is provided to disable the earth monitoring if necessary
External Alarm Fault
–
Yellow Illuminates when an open or short circuit fault
condition is detected on the external alarm circuit.
Warning System Fault
–
Yellow Illuminated by a fault condition of the warning
system output.
ACF Status - Fault / Isolate
–
Yellow Illuminates when the ACF output is in fault
(flashing) or isolated (steady).
ASE Status - Fault
–
Yellow Illuminates when a fault condition is detected on the ASE
circuit.