OPERATION
20221537 / D 27
Alarm messages on the change over panel
The alarm codes for the dual system will be displayed one at a
time in the change over panel’s display. The alarm codes will be
displayed after the data lines when the Arrow Down button is
pressed, and will only be available as long as the alarm situation
is present.
G1 ALARM 01/05
GPS Com Alarm
In the example above, the system received a GPS
communication alarm on gyro number 1. The indication shows
that this is the first of 5 alarm codes.
Acknowledging an alarm
^`h
bkq
An alarm is acknowledged by pressing the ACK/ENT button on
the control panel, or on an external acknowledge button if this is
installed.
- The audible alarm will be silenced
- If the alarm situation has disappeared, the alarm lamp will
be switched off, and the alarm code will be removed from
the LCD
- If the alarm situation continues, the alarm lamp will switch
from flashing to steady light. The LCD will return to show
true bearing with flashing numbers to indicate that the
bearing may have large errors
An alarm code for an active error may be recalled by pressing
the DISP button until the alarm display is shown. It is possible
to recall any alarm code in the LCD for as long as the alarm
situation is present.
The ALARM LISTING section, page 121, has a complete list of
alarm codes.