Lost Sog/Cog Reference - Furuno FEA-2107 Operator's Manual

28.9.5

Lost SOG/COG reference

Goto track steering mode
Associated alarms (generated
at ECDIS)
•
Alarm "2507 Route: Need
sog/cog ref."
•
After 2
Alarm "2505 Route: Use
minutes and
Goto WP."
then every 4
minutes
•
After 4
Alarm "2507 Route: Need
minutes and
sog/cog ref."
then every 4
minutes
•
Within 10
Alarm "2489 Route:
minutes
Changed to Goto WP."
Program track steering mode
Associated alarms (generated
at ECDIS)
•
Alarm "2509 Progtrack:
Needs sog/cog ref."
•
After 2
Alarm "2504 Progtrack:
minutes and
Use Radius Ctrl."
then every 4
minutes
•
Alarm "2509 Progtrack:
After 4
Needs sog/cog ref."
minutes and
then every 2
minutes
•
Within 10
Alarm "2496 ProgTrack:
minutes
Stop-Sensor fail."
Expected system performance
•
•
Instruction for navigator
•
Reminder
•
Automatic change of steering
mode to Goto WP mode.
Expected system performance
•
Program Track mode requires
differential position.
•
Guidance for navigator
•
Reminder
•
Automatic change of steering
mode to Radius Control mode.
•
If ship is in linear part, actual
heading is used as set heading.
If ship is turning, last-set
heading and radius remain.
28. Trackpilot
What end user should do
•
Acknowledge alarms.
•
Study situation.
•
Change to Goto WP
steering mode.
•
Acknowledge alarms.
•
Acknowledge alarms.
•
Study situation.
•
Acknowledge alarms.
•
Study situation.
What end user should do
•
Acknowledge alarms.
•
Study situation.
•
Change immediately
to local autopilot
control.
•
Acknowledge alarms.
•
Acknowledge alarms.
•
Study situation.
•
Acknowledge alarms.
•
Study situation.
28-31