Furuno FEA-2107-BB - Lost SOG;COG Reference

28. Steering with FURUNO Autopilot FAP-2000
28-32
28.9.5 Lost SOG/COG reference
Goto track steering mode
Associated alarms (generated
at ECDIS)
Expected system performance What end operator
should do
• Alarm "2507 Route: Need
sog/cog ref."
•
• Acknowledge alarms.
• Study situation.
After 2
minutes
then every 4
minutes
• Alarm "2505 Route: Use
Goto WP."
• Instruction for navigator
• Change to Goto WP
steering mode.
• Acknowledge alarms.
After 4
minutes
then every 4
minutes
• Alarm "2507 Route: Need
sog/cog ref."
• Reminder • Acknowledge alarms.
• Study situation.
Within 10
minutes
• Alarm "2489 Route:
Changed to Goto WP."
• Automatic change of steering
mode to Goto WP mode.
• Acknowledge alarms.
• Study situation.
Program track steering mode
Associated alarms (generated
at ECDIS)
Expected system performance What end operator
should do
• Alarm "2509 Progtrack:
Needs sog/cog ref."
• Program Track mode requires
differential position.
• Acknowledge alarms.
• Study situation.
After 2
minutes
then every 4
minutes
• Alarm "2504 Progtrack:
Use Radius Ctrl."
• Guidance for navigator
• Change immediately
to local autopilot
control.
• Acknowledge alarms.
After 4
minutes
then every 2
minutes
• Alarm "2509 Progtrack:
Needs sog/cog ref."
• Reminder • Acknowledge alarms.
• Study situation.
Within 10
minutes
• Alarm "2496 ProgTrack:
Stop-Sensor fail."
• 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.
• Acknowledge alarms.
• Study situation.