3. Operation of the Control Panel
Output Circuit Trouble Mode of Operation
36
NFS-640 Operations Manual P/N 51334:B 10/03/2003
How the Control Panel Indicates a NAC Trouble
A Trouble occurring on a NAC causes the control panel to do the following:
•
Produce a pulsed audible tone
•
Flash the
SYSTEM
TROUBLE
LED
•
Turn on the Trouble relay (TB9)
•
Send a message to the LCD display, History buffer and installed printers, terminal mode LCD-
80s, and CRT-2s
•
Display a
TROUBL
status banner and a
CONTROL
Type Code on the LCD display, along with
information specific to the device
Figure 17 Sample of a NAC in Trouble Message
How the Control Panel Indicates a Panel Circuit Trouble
A trouble occurring on a Panel Circuit causes the control panel to do the following:
•
Produce a pulsed audible tone
•
Flash the
SYSTEM
TROUBLE
LED
•
Turn on the Trouble relay (TB9)
•
Send a message to the LCD display, History buffer and installed printers, terminal mode LCD-
80s, and CRT-2s
•
Display a
TROUBL
status banner and
CONTROL
Type Code on the LCD display, along with
information specific to the device
Figure 18 Sample of a Panel Circuit in Trouble Message
How the Control Panel Indicates a Control/Relay Trouble
A trouble occurring on a control/relay module or control/relay transponder causes the control panel to
do the following:
•
Produce a pulsed audible tone
•
Flash the
SYSTEM
TROUBLE
LED
•
Turn on the Trouble relay (TB9)
•
Send a message to the LCD display, History buffer and installed printers, terminal mode LCD-
80s, and CRT-2s
•
Display a
TROUBL
status banner and
CONTROL
Type Code on the LCD display, along with
information specific to the device
Figure 19 Sample of a Control/Relay Module in Trouble Message
Status banner
Type Code
Time and date of trouble
TROUBL CONTROL
PANEL CIRCUIT
NO. 2
OPEN
09:38A 071401
B02
Device Address
Type of Trouble
Custom Description for
this device location
TROUBL CONTROL
PANEL CIRCUIT
P8-8
OPEN
09:38A 071401
P8.8
Status banner
Type Code
Time and date of trouble
Device Address
Type of Trouble
Custom Description for
this device location
TROUBL CONTROL
MODULE ADDR 1M044
OPEN
09:38A 071401 1M044
Status banner
Type Code
Time and date of trouble
Device Address
Type of Trouble
Custom Description for
this device location
Technical Manuals Online! - http://www.tech-man.com
firealarmresources.com