Function
Terminal
Codes
Description
Disable NAC 1
and NAC 2
NAC1, NAC 2
db
Select the code db to disable the outputs of NAC1 and
NAC 2. The Disablement and NAC Trouble/ Disabled
indicators illuminate when the NACs are disabled.
Enable Alarm
Delay
Z1 through Z8 Ad
Select code Ad to enable codes 00-09 of the Alarm
Delay function and codes 31-38 of the Zone Alarm
Delayed function.
Control Operation
The table below describes control operation of the Sigma A-CP Fire Control Panel:
Controls
Operation
W / Dog Reset
Press the W / Dog Reset button to clear the watchdog event. The
watchdog event causes a reset when the fire control panel fails to carry
out an operation.
The following conditions occur during a watchdog event:
The General Trouble and System Trouble LEDs light in the
General System Status area of the upper indicators.
The CPU Trbl. (trouble) LED lights on the lower indicators of the
fascia.
The internal buzzer of the fire control panel sounds.
Processor Reset
Press the Processor Reset button to reset the function of processors in
the Sigma A-CP Fire Control Panel. Perform this task to restore normal
operation to the fire control panel.
The fire control panel will resume normal operation within seconds of
pressing the processor reset button. This task is not a typical function of
the fire control panel and is only necessary when controls and indicators
are unresponsive. Press the Processor Reset after a firmware upgrade to
re-initialize processors in the fire control panel.
Write Enable
To operate the Write Enable switch:
4
Turn the Enable Access key to the right to open Access Level 2.
5
Move the slide-switch to the left (Write Enable position) when
programming in Access Level 3.
6
Return the slide-switch to the right (non-Write Enable position) after
completing tasks in Access Level 3.
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