28.11 Description Of Alarms Generated By Trackpilot; 28.11.1 Alarms - Furuno FEA-2107 Operator's Manual

28. Trackpilot

28.11 Description of Alarms Generated by Trackpilot

28.11.1 Alarms

Trackpilot operation related alarms
•
ALARM lamp on the Trackpilot control panel goes on.
•
Alarm is displayed on the Trackpilot control panel as OFF COURSE/SPEED WARNING or as an alarm
number "AL: NN", where NN is the number of an alarm.
•
Alarm is acknowledged by pushing the RESET button on the Trackpilot control panel.
•
List of typical alarms:
OFF COURSE
SPEED WARNING
ON LIMIT
AL 04
AL 05
AL 06
AL 07
AL 10
AL 11
AL 12
The central alarm system outputs these and other alarms: low voltage alarm, stop alarm (track control), position
differential alarm, heading differential alarm, course error alarm, cross-track error alarm, sensor alarm, low speed
alarm, destination arrival alarm, track control loss alarm, etc. For more information about the alarms the central
alarm system displays see its Operator's Manual.
28-36
The ship is not following set course.
The speed is below 20% or above 120% of MCR speed (max. cruising speed). For
further details, see the Autopilot's operator's manual.
Another reason is that the trackpilot has lost speed data from the ECDIS. In this case,
the trackpilot uses its backup speed source or last plausible speed.
Trackpilot uses rudder up to its set limit value. Normally this is only an indication, but if
it continues for a long period and the heading of the ship doesn't turn, it is an indication
of failure of the steering system. For further details, see the Autopilot's operator's
manual.
Rudder servo: Leak detected or no movement when valve is on.
Navigation computer has cancelled a remote mode.
24VDC alarm system supply failure.
Navigation computer didn't accept a request to go for a remote mode.
Missing working gyro.
Compass comparison alarm or reference gyro missing.
Messages from the navigation computer were missing while Trackpilot was in remote
mode.