NAVIS NavDP 4000 Series, Руководство по эксплуатации

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NAVIS NavDP 4000. Operation Manual
– manually
– automatically
– in Target Following mode. In this case the heading setpoint is considered as target course plus preset offset.
For example, if you enter 20
∘
for the offset, the heading setpoint will be equal to the target course plus 20
∘
.
10.6 Tracking
All the parameters related to the tracking mode must be set before you activate this mode.
10.6.1 Track Control Activation
Before activation this mode, make one of the routes in the Track window active (see Section 10.6.3, page 190).
After active route is set,
LS Track
(or HS Track) softkey on the bottom panel becomes dark green.
If there are no routes in the system, you must first create one using the route editor, get it from a flash drive or external
source.
NOTE! Before starting track mode, vessel must be brought close enough to the
starting waypoint (besides that, in AP mode vessel’s heading must be
close to the leg direction).
To activate the Track mode:
– in DP mode, press LS Track softkey on the POS panel.
Low speed track mode will be activated;
– in AP mode, press HS Track softkey on the HDG panel.
High speed track mode will be activated.
Having pressed
LS Track
(HS Track) softkey, it starts blinking. Press once again to cancel, or the
ENTER
softkey to
confirm.
If confirmed, the softkey becomes light green, and the
NAVIS NavDP 4000
starts operation in the track control mode.
Use Track and Map windows to see how the vessel follows the route.
10.6.2 Track Following Strategy
In HS Track mode the heading is automatically controlled to ensure following along the track.
Also in HS Track mode the vessel follows the track in optimal way with the track approach direction (difference
between the vessel COG and leg direction) limited by the predefined value. The track approach direction decreases as the
vessel appears closer to the track.
In LS Track mode operator can choose heading control strategy by pressing AUTO , MAN , LS Track or MinPWR
(option) softkey in the HDG panel.
If the operator chooses LS Track heading, the vessel heading setpoint will be determined by the track depending on
Track following parameters of “Param” tab (see Section 10.6.3, page 190). It will be either equal to the leg direction (with
crab angle) or taken from the active track waypoints table.
The following data are displayed for the Track mode (see Figure 10.29):
BOD — Bearing origin destination;
BTW
— Bearing to waypoint;
DTW — Distance to waypoint;
XTE — X-track error.
By default, when the Track Control mode is selected, the ship moves to the nearest leg of the route, which is calculated
automatically. You can choose any waypoint as a starting point by using “Goto WP” option (see Section 10.6.3, page 190).
Also pay attention on number of limitations of track catching or changing by new (external) track.
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Doc. 000.JDP-10000-OME, rev.3.3.13/“2102.$–17A-Advanced”