Back To Track Mode - Furuno FMD-3100 Operator's Manual

3. Roll the trackball to select the angle of approach to the destination then click.
Current position
Monitored route
WPT2
Click destination point . A circle and
arrow appear.
The system uses ship position, speed, angle of approach to create an instant track
route. The track is also checked for hazardous objects and the like against the chart
alerts.
During the calculation, the [Instant Track] dialog box window shows "Checking" in the
[Status] field. If, after completion of the calculation, the track is suitable, the message
"OK" replaces "Checking". The track and its waypoints, labeled [T1] - [T4], are colored
orange. The track is saved to the database as "Instant Track_XXX" (XXX=001 - 400).
If there is a problem with the track, an error message appears and the track is erased
from the screen. See section 11.7.3 for all the instant track messages and their mean-
ings.
To return to the monitored route, click a waypoint on a leg of the route to create an
[Instant Track] to use to return to the monitored route.
11.7.2

Back to track mode

When the vessel goes off track, the alert
"172 Off Track Alarm" appears in the [Alert]
box. To create an instant track to return to
the monitored route, use the back to track
mode as follows:
1. With a monitored route active, click the
[Instant Track] button on the
InstantAccess bar. The message
"Please click a WPT on Leg." appears
on the [Planning] page.
Note 1: If a monitored route is active,
the [Safe Off Track] mode can also be
selected.
Note 2: If a monitored instant track route is already active, an instant track mode
different from the currently active one can be selected. Further, a completely new
instant track route to the original monitored route can be created.
Destination
11. HOW TO MONITOR ROUTES
T3
WPT2
T4
Instant track
waypoints
(orange)
Click a location to set desired angle of
approach. Instant track is drawn.
When monitored route is active
T1
T2
Instant track
(orange)
Click here to show drop
down list to select mode.
11-7