F4000 LCD Operator's Manual
Document No: LT0117
Interpreting The Display
Page 4-4
19 April 2002
Issue 2.38
4.3 SYSTEM
INDICATORS
NOTE:
In the following sections the following abbreviations are used to describe the LED
indications:
OFF
=
LED unlit.
SF
=
LED flashing slowly (every 2 seconds).
F
=
LED flashing (every half a second).
RF
=
LED flashing rapidly (10 times per second).
ON
=
LED on steady.
4.3.1 "ALARM" LED INDICATOR
A Red indicator interpreted as:
(a)
OFF
The normal state
(b)
ON
One or more zones are in alarm. This is regardless of whether the zone is
isolated or de-isolated. If the FFCIF is configured to be MAF alarms, only
MAF zones will cause the LED to turn on. If it is configured for All Alarms
then any zone in alarm will turn the LED on.
(c)
F
An unacknowledged alarm event is present in the FFCIF alarm list or an
unacknowledged MAF alarm exists that was not able to be displayed in the
FFCIF list. Zones in alarm will be shown automatically for Type 3 FFCIFs and
can be viewed in Type 2 FFCIFs by using the RECALL key.
4.3.2 "FAULT" LED INDICATOR
An Amber indicator interpreted as:
(a)
OFF The normal state
(b)
ON
One or more zones are in fault (regardless of whether the zones are isolated
or unisolated). The faults total on the base display will be non-zero.
4.3.3 "ISOLATE" LED INDICATOR
An Amber indicator interpreted as:
(a)
OFF The normal state
(b)
ON
One or more zones is isolated. The "ISOLATE" indicator is affected only by
those zones numbered less than or equal to the programmed value of the
Isolate Relay Maximum Zone. The isolates total on the base display will be
non-zero.
(c)
F
One or more analogue points are isolated.
