Simplex 4020 - Page 30

Page 24
Document No: 4020-M010 1st February, 1997 Issue 2.0
Key 3 is isolated list (ISO LIST) key. It allows access to the list of
isolated circuits.
The list can be scrolled using the plus and minus keys. To exit the
list press the escape (ESC) key.
Using the example above, pressing the ISO LIST (3) allows access
to the list of five isolated alarms.
CAUTION
When working on the system and displaying lists or functions,
if an alarm activates, it has priority and will be displayed
automatically.
NOTE: Keys 1, 2, and 3
These lists will only register if there is a quantity for that category in
the display. ie: If the alarm list is pressed and nothing happens
there are no alarms to list.
Key 4 is acknowledge plus (ACK+) key
This combines the functions of the acknowledge and next buttons
of the main operating panel. When in the alarm or fault lists, it is a
quick means of acknowledging faults or alarms when working on
the system.
Key 5 is System reset (RST) key
This provides a global reset function and will reset all zones
including isolated zones. This reset is for use by the technician
after an isolated circuit has been repaired.
The RST (5) function can only be used when the display is in
NORMAL mode. Press the escape (ESC) key to return to normal
display mode.
NOTE: Using the main reset button, only acknowledged alarms can be
reset. If they are isolated they cannot be reset except by using
KEY 5 (RST).
3
ISO LIST
4
ACK+
5
RST