3. Operation of the Control Panel
Disabled Points Mode of Operation
32
NFS-640 Operations Manual P/N 51334:B 10/03/2003
Disabled Points Mode of Operation
The control panel indicates disabled points by displaying a screen for each disabled detector, monitor
module, control/relay module, and Panel Circuit. Disabled points do not cause an alarm or any
Control-by-Event activity. If more than one point is disabled, the control panel automatically displays
each point in the sequence in which the point was disabled.
When one or more points are disabled, the control panel does the following:
•
Holds all disabled output points in the off-state
•
Flashes the
SYSTEM
TROUBLE
LED
•
Lights the
POINT
DISABLED
LED
•
Lights the
TROUBLE
LED for each Panel Circuit with a disabled point
•
Sends a Disabled Point message to the LCD display, History buffer and installed printers,
terminal mode LCD-80s, and CRT-2s
•
Displays a message for each disabled point
Figure 14 Sample Disabled Point Message
!
CAUTION: Disabling a zone disables all input and output devices associated with the zone.
Disable message
Type Code of the disabled device
Address of the
disabled device
DISABL TAMPER
INTENSIVE CARE UNIT
EASTERN WING
03:20P 071401 1M159
Custom descriptor for
this device location
Time and date of trouble
Extended 12 character
custom label
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