Total Lost Position - Furuno FEA-2107-BB Operator's Manual

30.9.6

Total lost position

Associated alarms (generated
at ECDIS)
• Alarm "4012...4016:
Position equipment error"
• OR
• Kalman filter detects jump,
etc.
• Alarms "2000 Filter: Position
Within 30
unreliable" and "2006 Route:
seconds
Course jump possible."
• Alarm "2506 Route: Use
After 2
AUTO control"
minutes
then every 4
minutes
• Alarm "2475 Route Needs
After 4
filter ON"
minutes
then every 4
minutes
• Alarm "2497 Route Stop-
Within 10
Sensor fail."
minutes
• Alarm "2471 RC/NAV-TC
After Alarm
STOP - Use AUTO" in
"2497 Route
ECDIS is generated. Warning
Stop-Sensor
lamp RC turns on and
fail."
steering mode indicator lamp
RC start flashing in Autopilot
control panel.
30. Steering With TOKYO KEIKI Autopilot PR-6000
Expected system performance
• Kalman Filter is switched Off
and system uses dead reckoning
for positioning.
• If you have log or dual-axis log,
then dead reckoning is based on
them and gyro.
• If you have log or dual-axis log,
then dead reckoning is based on
last plausible speed from
position sensors. This is
indicated by showing your ship's
position, SOG and COG in red.
The source indication for SOG
and COG is "(LAST)".
• Guidance for navigator
• Reminder
• If ship is in linear part, actual
heading is used as set course.
• If ship is turning, last set course
and radius are used to complete
the turn.
What end operator
should do
• Acknowledge alarms.
• Study situation.
• Acknowledge alarms.
• Study situation.
• Change immediately to
local autopilot control.
• Acknowledge alarms.
• Acknowledge alarms.
• Study situation.
• Acknowledge alarms.
• Study situation.
• Acknowledge alarms
• Study situation.
• Change steering mode
to "AUTO".
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