28.9.10 Lost communication between Trackpilot and ECDIS
Associated alarms
•
Within 15
Alarm "2488 Steering:
seconds
Stop-system fail" and
"2480 Trackpilot Receive
error" is generated at the
ECDIS.
•
Alarm 05 is generated at
the Trackpilot.
28.10 Other Operations with Trackpilot
28.10.1 Speed used by Trackpilot
•
The Trackpilot uses the speed from its own log input interface or from the serial line coming from an integrated
computer, and one is chosen during the installation. This speed is called the "internal speed reference".
•
The operator may choose internal speed reference or manual speed with the MANUAL SPEED button.
28.10.2 Control strategy used by Trackpilot
•
The operator may choose among ECONOMY, MEDIUM and PRECISE by using the FUNC. SETUP button
and the ARROW buttons.
•
Control strategy (economy, medium, precise) chooses course-keeping accuracy.
28.10.3 Load conditions used by Trackpilot
•
The operator may choose among LIGHT, MEDIUM and LOADED by using the FUNC. SETUP button and the
ARROW buttons.
•
Load condition (light, medium, loaded) chooses rudder gain.
Expected system performance
•
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 in turn, last-set
heading and radius remain.
28. Trackpilot
What end user should do
•
Acknowledge alarms.
•
Study situation.
28-35