NORTHROP GRUMMAN Sperry Marine NAVIGAT X MK 2, Assembly Instructions Manual

Page: 31 / 112

NAVIGAT X Mk 2 056341 Rev. AA
3: Errors and Alarms Page 3-1
3 Errors and Alarms
3.1 Alarm Indication
3.1.1 Audible Alarm Indication
3.1.1.1 Invalid Function
A single short beep indicates that an invalid function was selected. This
is the case, e.g. if the operator attempts to change the heading reference
while the Auto steering mode is active.
3.1.1.2 System Alarm
Continuous on-off beeping indicates that a system alarm is present. Si-
multaneously, an error message is shown on the display.
3.1.2 Visual Alarm Indication
In case of a system alarm, an error message is shown on the display which
specifies the type of alarm present.
Fig. 3–1:
an alarm message
(gyro failure)
The message remains on the screen until the operator acknowledges the alarm.
3.1.3 Acknowledging Alarms / Muting the Audible Alarm
GYRO FAILURE
F1 CONFIRM
On alarm, press keys to acknowledge the alarm and clear the
alarm message from the display screen. The audible alarm is
muted simultaneously.
On alarm, press keys to mute the audible alarm.
The alarm message will remain on the display screen until the
alarm is acknowledged at the operating unit.
Note
When the cause of an alarm is eliminated, a pending alarm message is cleared
from the display and the audible alarm is muted automatically.
When an alarm has been confirmed, the ext. alarm status output will remain ac-
tive until the cause of the alarm is eliminated.
All active alarms may be viewed in the error list in the Service Setup 2. When
the cause of the alarm is eliminated, the corresponding entry is automatically
cleared from the error list.