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Use of the Controls
Indicator
Color
-
Red
PRE
DISCHARGE
Red
DISCHARGE
Yellow
ABORT ACTIVE
F
A
Red
IRE
LARM
-
Red
PRE
ALARM
Blue
SECURITY
Yellow
SUPERVISORY
Yellow
SYSTEM
TROUBLE
Yellow
SIGNALS
SILENCED
Yellow
POINT
DISABLED
Table 2.1 Descriptions of System Status Indicator LEDs (2 of 2)
* Activation of a Manual Release Switch will override Predischarge Delay and override an active Abort
Release Switch, resulting in an immediate agent release.
2.3 Control Keys
The control panel provides five Control Keys as described below:
2.3.1 Acknowledge/Scroll Display
Use the
ACKNOWLEDGE
pressed, the control panel does the following:
•
Silences the panel sounder
•
Changes all active LED indicators from flashing to steady
•
Sends an Acknowledge message to the History buffer and installed printers, CRT-2 terminals,
and FDU-80 annunciators
•
Sends a signal to silence the sounders on the FDU-80 and ACS annunciators
14
When Active
Lights when any of the releasing zones have been
activated, but have not yet discharged a releasing
agent.
Lights when any of the releasing zones are active
and in the process of discharging a releasing
agent.
Lights when an abort switch has been activated.
Flashes when a non-acknowledged fire alarm
exists. Lights steadily after you acknowledge the
fire alarm.
Flashes when a non-acknowledged fire Pre-Alarm
exists. Lights steadily after you acknowledge the
Pre-Alarm.
Flashes when a non-acknowledged Security alarm
exists. Lights steadily after you acknowledge the
alarm.
Flashes when a non-acknowledged Supervisory
condition exists. Lights steadily after you
acknowledge the event.
Flashes when a non-acknowledged system trouble
exists. Lights steadily after you acknowledge the
trouble.
Lights steadily after a fire alarm condition occurs
and after you press
SIGNAL SILENCE
outputs. Flashes to indicate that some
silenceable outputs are on and some are off.
Lights when one or more system devices are
disabled.
/
S CROLL DISPLAY
To Turn Off
Turns off automatically when no releasing
zones are in the pre-discharge state.
Turns off automatically when no releasing
zones are discharging a releasing agent.
*
Turns off automatically when an abort switch
has been pressed and its timer is still
counting down.
Clear the alarm condition and reset the
system.
Clear the pre-alarm condition. (An Action
Pre-Alarm requires a system reset.)
Clear the Security alarm condition and reset
the system.
Clear the condition (Supervisory inputs
require a system reset if they are latching.
Refer to Table 3.3 page 26 for latching
information.).
Clear the trouble condition.
Press
SYSTEM RESET
to silence all
the LED.
Enable the device or remove the disabled
device from the system program.
key to respond to new alarm or trouble signals. When
NFS-320/E/C Operations Manual — P/N 52747:A 12/12/2006
Control Keys
.
will also turn off
DRILL
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