F4000 LCD Operator's Manual
Document No: LT0117
Operating Instructions - Brigade Functions
Page 5-6
19 April 2002
Issue 2.38
5.4
RESET ACKNOWLEDGED ZONES IN ALARM
5.4.1 FUNCTION
In "FFCIF mode", pressing the "RESET" key performs the following functions for all zones in
the alarm list that have been acknowledged:
(a)
RESETS all circuits mapped to the acknowledged zone(s).
(b)
Silences any alarm or fault sounder.
(c)
Aborts Zone Test on any acknowledged zone under test.
(d)
If no more un-isolated alarms exist, the bells will turn OFF, if they were ON.
(e)
The acknowledged zone alarms are removed from the alarm list.
5.4.2 OPERATING
SEQUENCE
Press "RESET" key once:
-
LCD displays "Resetting acknowledged alarms".
-
All acknowledged zones in the alarm list will be reset.
-
All acknowledged (steady) red alarm indicators will be turned
OFF.
-
Local Bells, if any, will be silenced if no more un-isolated zones
are in alarm.
-
Sounder will be silenced.
NOTES:
(a)
If the alarm condition on the zone circuits has not been removed, then the zone
alarm indicators and Local Bells will be re-activated (if not isolated), and a new zone
alarm will be put into the alarm list.
(b)
Pressing "RESET" in the "FFCIF mode" does not affect Zone or Ancillary Zone fault
indications. Refer to the "Zone / Ancillary Reset" section in Chapter 7; "Operating
Instructions - Zone Functions".
(c)
Pressing "RESET" in the "FFCIF mode" has no affect on isolated zones or zones in
"AUTO-RESET" mode, as they are unlikely to be in the alarm list.
(d)
If a reset command is already in progress, the LCD will display "Cannot reset alarms
at this time". Wait until the original reset has completed and try again.
(e)
If the LCD is in FFCIF Type 2 Mode, all alarms will be automatically acknowledged
and then reset, i.e. it is not necessary that the zone(s) be previously acknowledged.
