30 NFS-320/E/C, NFS-320SYS/E Operations Manual — P/N 52747:E1 06/16/2011
Operation of the Control Panel Output Circuit Trouble Mode of Operation
• The panel trouble relay transfers (TB4)
3.11.2 How to Respond to an Active Trouble Monitor
If the control panel indicates an active Trouble Monitor Point, take the following action:
1. Press the ACKNOWLEDGE/SCROLL DISPLAY key to silence the panel sounder and switch the
SYSTEM TROUBLE LED from flashing to steady—regardless of the number of troubles, alarms,
and supervisory signals.
2. The control panel sends an Acknowledge message to the History buffer and installed printers,
FDU-80 annunciators, and CRT-2s. Check the trouble message for the location and type of
trouble.
3. Correct the condition causing the trouble.
4. When the trouble condition is corrected, the panel will return to normal operation (indicated by
the “System Normal” message).
5. The control panel sends a “System Normal” message to the LCD display, History buffer and
installed printers, FDU-80 annunciators, and CRT-2s.
3.12 Output Circuit Trouble Mode of Operation
3.12.1 Overview
Output circuits include NACs, Control/Relay Modules, and Transponder Points. This section
contains a description of control panel operation for each type of output circuit.
• Four NACs are included on the control panel
• Control/Relay Modules connected to the control panel on an SLC
• Transponder Points: XPC-8 (CLIP only), or XP6-C (CLIP or FlashScan)
Trouble Type Codes for Control Modules and NAC Circuits
Type Code
Silenceable
(Y/N)
Configuration Device Function
CONTROL N NAC Supervised NAC
RELAY N FORM-C relay Relay Output
BELL CIRCUIT N NAC Supervised NAC for notification appliance
STROBE CKT N NAC Supervised NAC for notification appliance
HORN CIRCUIT N NAC Supervised NAC for notification appliance
AUDIBLE CKT N NAC Supervised NAC for notification appliance
REL END BELL N NAC Supervised NAC for notification appliance
blank N NAC Supervised NAC for undefined device
RELEASE CKT N NAC Directs outputs to perform a releasing function.
REL CKT ULC N NAC Directs outputs to perform a release function as required by ULC.
REL AUDIBLE N NAC NAC, activated upon release
NONRESET CTL* N NAC Relay output, unaffected by “System Reset” command
TELEPHONE N NAC Standard Telephone circuit
REL CODE BELL** N NAC Supervised NAC (NFS-320 NAC only)
INSTANT RELE N NAC NAC, short = normal; supervised for open circuits and ground
faults. Always non-silenceable and switch-inhibited.
ALARMS PEND N NAC Output that will activate upon receipt of an alarm condition, and
remain in the alarm state until all alarms have been
acknowledged.
CONTROL NAC** N NAC Supervised NAC
Table 3.7 Control Module and NAC Circuit Trouble Type Codes (1 of 2)
To Next Page
Loading...
Need help?
General
