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Robertson AP45 Autopilot
Operation
Simrad Robertson AS
Egersund - Norway
Page 2-7
Example:
R indicates that the vessel is located to the right of the bearing line, and L
indicates to the left of the bearing line.
05° is the number of degrees course correction relative to initial set course. As
the vessel approaches the bearing line, the correction value decreases and
when the vessel is on track, the information display shows:
Note!
The display may show X number of degrees course correction even if it says “ON
TRACK”.
5. As the vessel gets within the arrival circle set on the navigational receiver, or
as the vessel passes the perpendicular line to the waypoint, the receiver
transmits a "data not valid" signal to the autopilot. An alarm will then activate
and the course to steer will no longer be updated.
To proceed to the next waypoint, the procedure should be repeated from step 2
onwards.
Procedure:
• Reset the alarm on the autopilot and navigational receiver.
• Select “AUTOPILOT” mode on the autopilot
• Use Course Change knob/buttons on the autopilot to set the new course given
by the Nav. receiver.
• Press “NAV”
NOTE!
Navigational steering is a slow acting process and the vessel normally follows the
bearing line with a deviation of ±0.02 - 0.03 n.m.(40-50 meters). Higher deviation
may temporarily occur due to rapid change of current, wind, speed or at start-up
from a position off the track line.
ALARM
NAV.RECEIVER
05° XTE = R0.02NM
NAVIGATION
POOR NAVDATA
CHANGE MODE
00° ON TRACK
NAVIGATION
WAYPOINT 3
WAYPOINT 2
WAYPOINT 1
INFO DISPLAY
INFO DISPLAY
INFO DISPLAY
05°
BEARING LINE
XTE= R0.02NM
R RIGHT
L LEFT
RESET
ALARM
05° XTE=R 0.02Nm
NAVIGATION
00° ON TRACK
NAVIGATION