Extra Information

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AP70/AP80 | Addendum for sw release 1.2
Start Track steering
Before the AP80 can be used for track steering, the system must be setup and configured
according to the separate AP70/80 Installation manual. The wiring to the ECDIS system must
be according to previous section, and both the ECDIS system and the AP80 system must be
configured as previously described.
1. Steer the vessel to a position that allows the route to be started on the ECDIS system
- The route will not start if the difference between vessel heading and bearing on leg
exceeds 2*Off course limit, or if the difference between vessel heading and bearing on leg
is more than 90°
- XTD from the imaginary extension of the first leg must not exceed the deviation corridor
2. Activate the selected route on the ECDIS system
3. Once inside the track corridor, press the TRACK key on the AP80 to start automatic Track
steering.
The AP80 will remain in TRACK mode until the vessel reaches end of route, unless certain
error conditions occur which renders the system unable to continue in TRACK mode and
therefore automatically change the mode. At end of route the AP80 will automatically change
to AUTO mode with same heading as on the last leg.
Turning in TRACK mode
The AP80 receives turn information from the ECDIS system. When the vessel reaches the
arrival circle for a waypoint, the ECDIS system will give a wheel-over alarm. The autopilot will
turn the vessel according to route information independant on if the alarm is confirmed on
the ECDIS system.
Backup navigator alarm
A backup navigator alarm is available when the AP80 is connected to an ECDIS in a Track
system.
If an alarm is not acknowledged within the specified timefram e.g. “wheelover”, “end of route”
or “track control stopped”, a backup navigator alarm can be activated to notify bridge officer
off duty. The backup navigator alarm can only be acknowledged from AP80.
To enable this feature, the autopilot system provides a configurable handshake port on SD80
or AD80 that can be connected to an external alarm panel or loudspeaker.