Alerts; Overview - Furuno GS-100 Operator's Manual

5.

ALERTS

"Alert" is a generic name for a notice to any unusual or potentially dangerous situation
generated within the system. There are two types of alerts, warning and caution.
Warning: Conditions or situations which require immediate attention for precautionary
reasons.
Caution: Awareness of a condition which continues to require attention out of the or-
dinary consideration of the situation.
5.1

Overview

The GS-100 has ten types of alerts as follows:
ID
210
211
212
240
430301 Dead-Reckoning
430302 Output Stopped (HDG)
430311 Output Stopped (Speed)
430321 Rate gyro broken down
430322 Accelerometer broken down
430950 Communication error with
Note 1: When a warning is not acknowledged within three minutes, the warning is re-
peated.
Note 2: When the alert mode is Alert I/F 1 or Legacy (see paragraph 8.4.8), the last
three digits of the alert ID number for the ALR output sentence (see page AP-17) is
displayed.
When an alert situation occurs, the buzzer sounds (except for a caution) and the name
of the alert appears at the bottom of the display. Also, the values and indication for the
following items are displayed in yellowish orange for a warning, yellow for a caution.
• 3-axis speed
• Heading
• Calculation state (DR, Stopped, SYS FAULT)
• Position (only when the status indication is "No Fix")
• Time and date (only when the status indication is "No Fix")
Message
HDOP exceeded
No calculation of position
Abbreviated messages:
No calculation of POSN
Loss of position
System fault
BAM
Type
Caution The value of HDOP (Horizontal Di-
lution of Precision) is 4 or above.
HDOP threshold being permanent-
ly set to 4.
Caution The signal from core is not received
for three seconds.
Caution No positioning data.
Caution Can not communicate with GS-
1001.
Warning The heading is calculated using
ROT, not GPS position.
Caution The heading output stopped.
Caution The speed output stopped.
Caution Rate gyro malfunction
Caution Accelerometer malfunction
Caution Communication error with alert
management system.
Meaning
5-1