Appendix B Alert List
B-2
The list of alert messages by alert type is shown below.
B.1 Alarms
Message Explanation
Collision avoidance function lost
The collision avoidance function cannot be executed
due to a failure or a communication error of sensor or
radar antenna.
CPA/TCPA(AIS) CPA/TCPA alarm (AIS)
CPA/TCPA(TT) CPA/TCPA alarm (TT)
Cross Track
The off-track distance from the planned route exceeded
the limit.
Depth below keel The depth below keel is too shallow.
Dragging anchor The ship has left the dragging anchor monitoring area.