C420 Programming Manual
7
2.2 KEYS
2.2.1 Internal keyboard
The table below describes the keys of the internal keyboard of the control panel and their function. An icon on the front panel of the
control panel is associated to each key. Just for convenience, a name is associated to each key as well. These names will be used
throughout the document to refer to each key.
ICON
NAME
FUNCTION
INCREASE DELAY
When this key is pressed, the running activation delay of the siren outputs is incremented
by 1 minute.
The overall maximum value for the delay, composed of the sum between the initial
programmed delay and the delay added through this key, is 10 minutes.
If the passwords are enabled, the user is required to enter the level 2 password.
The usage of this key leads to the storage of an event in the event log.
SKIP DELAY
This key zeroes the running activation delay of the siren outputs.
By pressing this key, the zones for which the delay is running switch immediately to the
alarm condition with siren output ON.
SILENCE/REARM
SIRENS
This key silences the active siren outputs and rearms the siren outputs previously silenced.
If the passwords are enabled, the user is required to enter the level 2 password.
The usage of this key leads to the storage of an event in the event log.
MASTER ALARM
This key triggers a master alarm condition.
If the passwords are enabled, the user is required to enter the level 2 password.
The usage of this key leads to the storage of an event in the event log.
TEST LAMP
This key starts the test lamp procedure, which activates the buzzer and turns all the LEDs
ON simultaneously, for a period of 3 seconds.
If the key UP is pressed during the execution of the test, when it ends the user enters a
screen which makes it possible to regulate the sharpness of the display.
GLOBAL RESET
This key starts the “global reset” procedure. This procedure clears any alarm and fault
event and restores the outputs and relays in idle state.
If the control panel is in the monitoring phase and the passwords are enabled, the user is
required to enter the level 2 password.
The usage of this key leads to the storage of an event in the event log.
If before pressing the GLOBAL RESET key there was any alarm or fault and the causes of
these events are still present after the reset, the events will be detected again.
UP,
DOWN,
LEFT,
RIGHT
Direction arrows, used to move through the menu items and to scroll the list of characters
when entering numbers and strings.
ESC/MENU
If this key is pressed when the control panel is in the monitoring phase, the main menu is
displayed (MENU).
In all the other circumstances, this key is used to leave the screen/menu currently
displayed and return to the previous screen/menu (ESC).
ACK
By pressing this key (this operation is named “event acknowledgement”) the buzzer stops
sounding.
This key is also used to confirm the user input in the menus where numbers and strings are
entered.
Summary of Contents for C420
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