NAVIS NavDP 4000 Series, Руководство по эксплуатации

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Control Modes
Figure 9.5: High Speed Tracking
– Waypoint table management (reverse track, copy track, edit points, change active route, external route loading (from
ECDIS, for instance);
– Manual speed (from Joystick);
– Cross-track alarm.
Following parameters of Heading Control Law are available from Operator Station:
Off-Track Limit — specifies the track offset at which an alarm is produced;
Track Gain — specifies the tracking accuracy;
Turn Radius — specifies radius of turn when changing track leg;
Rudder limit — specifies the ceiling value of rudder offset.
See Section 10.6, page 189 for details.
9.2.6 Heading by Low Speed Track
This control mode is available only if the Low Speed Tracking control mode has been set for the position. The vessel
motion in Low Speed Track mode is shown in Figure 9.6.
The rotational moment demand is calculated by the controller. During the operation, the vessel’s heading is continu-
ously directed with crab angle to track.
Following parameters of Heading Control Law are available from Operator Station:
Crab Angle Angle between track leg and desired heading
See Section 5.7, page 81 for details about crab angle.
Doc. 000.JDP-10000-OME, rev.3.3.13/“2102.$–17A-Advanced”
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