NCD Instruction Manual — P/N LS10210-051NF-E:C 2/18/2019 33
Trouble Event Operation
4.4 Trouble Event
A System Trouble, Point
Trouble, electrical or
mechanical fault will display
as follows on the NCD if no
higher priority unacknowl-
edged events exists on the
system.:
• Produces a pulsed
audible tone.
• Turns on the Trouble
Relay.
• TROUBLE appears in the
Header Bar.
• TROUBLE appears in the
Alert Bar as a yellow
color indicator and
provides Trouble event
counts.
• Flashes the Event LED
yellow.
• Displays T
ROUBLE and
specific device
information in the
Events List.
• Displays information
on how to react to the
event in the
Informational Text Area.
4.4.1 Responding to a Trouble Event
To acknowledge the event and silence the NCD sounder do the following:
• The Informational Text Area on the screen will indicate step by step what needs to be done to acknowledge and silence the event
• Tap on the
ACKNOWLEDGE touch point located in the Header Bar. The ACKNOWLEDGE touch point will be highlighted in blue. A
check mark will appear next to the acknowledged event.
• BLOCK ACKNOWLEDGE allows for multiple events to be acknowledged at once.
• Tap on the
SILENCE touch point located in the Header Bar the silence icon in the Alert Bar will illuminate blue once the NCD is
silenced.
• Investigate and correct the condition that initiated the trouble condition.
• Once all the events have been acknowledged the blue highlight indicator will move from the ACKNOWLEDGE touch point to the
SILENCE touch point.
SIGNALS
SILENCED
FIRE ALARM
CO ALARM
DISABLE
OTHER
SUPERVISORY
TROUBLE-Open Circuit
TROUBLE MON
Thu 02/22/18
1:52:57 PM
NO25L01M011
Step 1 Acknowledge each event. This is secondary text to explain what acknowledging an event means and who should do it.
UNACKNOWLEDGED TROUBLES (1)
TROUBLE
1
TROUBLE
Figure 4.4 Trouble Event Screen
NOTE: If an unacknowledged, higher priority event exists, the NCD will retain the indications of the higher priority event, such as the LED,
audible tone, etc. The Trouble Relay, and flashing event LED will still react at the time of the event
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