Simrad AP60 Operating instructions

Category
Navigational compasses
Type
Operating instructions
ENGLISH
AP60
Operator Manual
Preface
Disclaimer
As Navico is continuously improving this product, we retain the right to make changes to the
product at any time which may not be reflected in this version of the manual. Please contact
your nearest distributor if you require any further assistance.
It is the owners sole responsibility to install and use the equipment in a manner that will not
cause accidents, personal injury or property damage. The user of this product is solely respon-
sible for observing safe boating practices.
NAVICO HOLDING AS AND ITS SUBSIDIARIES, BRANCHES AND AFFILIATES DISCLAIM ALL LI-
ABILITY FOR ANY USE OF THIS PRODUCT IN A WAY THAT MAY CAUSE ACCIDENTS, DAMAGE
OR THAT MAY VIOLATE THE LAW.
Governing Language: This statement, any instruction manuals, user guides and other informa-
tion relating to the product (Documentation) may be translated to, or has been translated
from, another language (Translation). In the event of any conflict between any Translation of
the Documentation, the English language version of the Documentation will be the official
version of the Documentation.
This manual represents the product as at the time of printing. Navico Holding AS and its sub-
sidiaries, branches and affiliates reserve the right to make changes to specifications without
notice.
Copyright
Copyright © 2013 Navico Holding AS.
Warranty
The warranty card is supplied as a separate document.
In case of any queries, refer to the the websites:
pro.simrad-yachting.com and www.simrad-yachting.com.
Manual conventions
Important text that requires special attention from the reader is emphasized as follows:
¼ Note: Used to draw the reader’s attention to a comment or some important information.
Warning: Used when it is necessary to warn personnel that they
should proceed carefully to prevent risk of injury and/or damage to
equipment/personnel.
| 1
Contents | AP60 Operator
Contents
3 Introduction
3 System overview
3 Compliance
3 Spares and accessories
3 AP60 documentation
4 AP60 System examples
6 The front panel and keys
6 The screen
8 List of display abbreviations
9 Basic operation
9 Safe operation with the autopilot
9 Turning the autopilot system on/off
9 Menus and dialog boxes
10 Display illumination
10 Taking command
10 Selecting autopilot modes
10 Switching from automatic mode to hand steering
11 Selecting profile
11 Acknowledging a message
11 Using the thruster
12 The operational modes
12 Mode overview
12 External system selector
13 Hand steering
14 Auto modes
16 Heading capture
17 Turn pattern steering
21 The alarm system
21 Message types
21 Alarm indication
21 Acknowledging a message
21 The Alarm listing
21 List of possible alarms and corrective actions
25 System conguration
25 Turning the autopilot on for the first time
25 User settings
26 Network settings
30 Installation settings
34 Profiles
37 Compass calibration
38 Seatrials
2 |
Contents | AP60 Operator
42 Maintenance
42 Preventive maintenance
42 Simple maintenance procedures
42 Restoring factory default settings
43 Device list
43 Diagnostics
43 Software version and unit’s serial number
43 Software upgrades
44 Menu overview
44 The Quick menus
44 The settings menus
| 3
Introduction | AP60 User Guide
Introduction
System overview
The AP60 systems include several modules that need to be mounted in different locations on
the vessel and that need to interface with at least three different systems on the boat:
The boat’s steering system
The boat’s electrical system (input power)
Other equipment onboard
See the wiring examples on page 4 and on page 5.
Compliance
The AP60 system complies with the following regulations:
CE (2004-108 EC EMC Directive) - AP60 system when used with an AC70 computer
C - Tick
For more information refer to our websites:
pro.simrad-yachting.com and www.simrad-yachting.com.
Spares and accessories
List of spare parts and accessories for the AP60 system can be found on our websites:
pro.simrad-yachting.com and www.simrad-yachting.com.
AP60 documentation
The following documentation is available for the AP60 system:
- Operator manual (this manual); operation and system configuration
- Quick Guide; basic key functions and menu overview
- Installation guides; wiring guidelines for control unit and autopilot computers
- Mounting templates for AP60 control unit and autopilot computers.
All documentation are continuously updated to match new software releases. The latest
available manual version can be downloaded from our web sites.
1
4 |
Introduction | AP60 User Guide
AP60 System examples
Basic system
1
T T
12/24V DC
12 V DC
AC70
1* NMEA 0183
IN/OUT
COMPASS
AP60
CONTROL
UNIT
DRIVE UNIT
5
7
6
4
2 3
KEY DESCRIPTION
1 Micro-C CAN bus backbone
2 SimNet to Micro-C (male) Drop cable
3 Micro-C Drop cable (female to male)
4 Micro-C Power cable with 120 Ohm terminator, female
5 Micro-C Drop cable, male
6 Micro-C T-Joiners
7 Micro-C Terminator, 120 Ohm, male
| 5
Introduction | AP60 User Guide
Advanced system with thruster
AP60
CONTROL
UNIT
2
1
T T
AD80/
SD80
12/24 V DC
12/24 V DC
12 V DC
AC70
SI80
1*
NMEA 0183
IN/OUT
COMPASS
GPS
SENSOR
4*
NMEA 0183
IN/OUT
THRUSTER
CONTROL
DRIVE UNIT
5
6
7
4
KEY DESCRIPTION
1 Micro-C CAN bus backbone
2 SimNet to Micro-C (male) Drop cable
3 Micro-C Drop cable (female to male)
4 Micro-C Power cable with 120 Ohm terminator, female
5 Micro-C Drop cable, male
6 Micro-C T-Joiners
7 Micro-C Terminator, 120 Ohm, male
Option
6 |
Introduction | AP60 User Guide
The front panel and keys
60
AP
NAV
MENU
TURN
NO-
DRIFT
AUTO STBY
WORK
4
5
7
8
1 2 3
6
9
No. Description
1 Menu key. Press once to display the active steering mode’s quick menu. Press twice to
display the Settings menu
2 Arrow keys, used for manoeuvering in menus and for adjusting parameters
3 Light/ Power key. Press to display the Light dialog. Repeat short presses to toggle
preset light levels. Press and hold for 3 seconds to turn the unit ON/OFF
4 Course knob. In menus and dialogs; turn to select menu item and adjust value.
In FU mode; turn to set rudder angle.
In AUTO and NoDrift modes; turn to change set heading/set course
5 Port/Cancel key. In menus; press to return to previous menu level.
In Standby and FU modes; press to go to NFU mode.
In AUTO and NoDrift modes; press to change set heading/set course to port
6 Starboard/Confirm key. In menus; press to confirm menu selection/enter next menu
level.
In Standby and FU modes; press to go to NFU steering.
In AUTO and NoDrift modes; press to change set heading/set course to starboard
7 Profile/Thruster key. Press and hold for 3 seconds to activate available thruster.
In Standby mode; press to switch to AUTO mode with active WORK profile *
In AUTO, NoDrift and NAV modes; press to toggle between NORMAL and WORK
profile *
8 Turn key. Press to toggle between U-Turn and S-Turns options
9 Mode keys. Press to activate mode indicated on key
* Works only if the boat type is set to Disp (Displacement).
If the boat type is set to Planing or Waterjet a short press on this key has no action.
The screen
Heading repeater
Digital heading readout and indication of heading repeater unit (True or Magnetic). The
heading is shown with one decimal if true heading.
| 7
Introduction | AP60 User Guide
Mode Info panel
The panel contains mode specific content and varies with the operational mode. See The
operational modes” on page 12 onwards for more details.
If sensor input is missing, the numbers will be replaced with hyphens.
No truster available Thruster in use No sensor input
Rudder bar
Rudder position indicator with digital and analog readout.
Direction arrows are shown when rudder movement is commanded. The arrows are only
shown when rudder feedback is available.
Rudder angle
Commanded rudder
direction
¼ Note: The rudder bar shows commanded rudder angle in systems with analog steering
without rudder feedback.
Status panel
Status icons
Mode indication
Active prole
The following mode abbreviations are used:
S Standby FU Follow-up NFU Non-Follow Up
A Auto (Compass) ND No Drift N Nav
Available status icons are shown below. Only active icons will be visible.
Icon Description
Thruster available for the autopilot steering
Active alarm. Flashing icon when the alarm is not acknowledged
Active warning
8 |
Introduction | AP60 User Guide
If the autopilot is operated from another unit, the passive icon is shown in the mode
indication field.
If the autopilot is disengaged by an external system selector, the mode indication will be
replaced as below.
Passive control unit Autopilot disengaged by external system selector
Dialogs
Used for user input or for presenting information to the user.
Quick menus
Mode dependant menu, displayed by pressing the MENU key. The Quick menus contain the
most common used settings for the active mode. The menu varies with the autopilot mode.
Standby, FU and NFU mode AUTO and NO DRIFT mode NAV mode
Settings menus
Used for installation and system setup. The menus are activated from the Quick menu, or by
pressing the MENU key twice.
List of display abbreviations
The following tables holds a list of abbreviations used in the autopilot display. For further
information see The operational modes” on page 12.
BWW Bearing Waypoint to Waypoint
COG Course Over Ground
CRS Course
CTS Course To Steer
DTW Distance To Waypoint
HDG Heading
MAN Manual (speed input)
SOG Speed Over Ground
STW Speed Through Water
WPT Waypoint (followed by waypoint name or number)
XTD Cross Track Distance (previously XTE)
| 9
Basic operation | AP60 User Guide
Basic operation
Safe operation with the autopilot
Warning: An autopilot is a useful navigational aid, but DOES NOT
under any circumstances replace a human navigator.
Do not use automatic steering when:
At extreme speed
In heavy traffic areas or in narrow waters
In poor visibility or extreme sea conditions
When in areas where use of autopilot is prohibited by law
When using an autopilot:
Do not leave the helm unattended
Do not place any magnetic material or equipment near the magnetic or fluxgate compass
used in the autopilot system
Verify the course and position of the vessel at regular intervals
Always switch to Standby mode, and reduce speed in sufficient time to avoid hazardous
situations
Turning the autopilot system on/o
¼ Note: Before attempting to turn on the autopilot and perform an installation set-up, the
hardware installation and electrical installation must be completed and performed in
accordance with the instructions in the Installation guides for the separate units.
You turn ON the autopilot system on by a short press on the Light/Power key.
The first time the autopilot system is started and after a factory reset, you will be guided
through a set of initial settings. If these settings are not completed, you can configure the
autopilot system manually as described in “System configuration” on page 25.
¼ Note: On additional control heads, acknowledge the language selection and cancel all other
setup requests.
The system is turned OFF (Sleep mode) by pressing and holding the Light/Power key on an
active control unit. During the shut-down procedure the system will automatically go to
Standby mode before it is turned off. If the Light/Power key is released before shut-down is
completed, the power off is cancelled.
Menus and dialog boxes
You maneuver in menus and dialog boxes as follows:
Return to previous menu level by pressing the Left arrow key or the Port key. Repeat pressing
this key to exit the menus
Proceed to next menu level by pressing the Right arrow key or the Starboard key
Select a menu/dialog item by using the rotary knob, the Up or the Down arrow key
Select among available options or adjust a value by pressing the Up or Down arrow key.
Selected option is confirmed when you press the Left arrow key or the Port key
Toggle on/off a check box by pressing the Right arrow key or the Starboard key
A dialog box will guide you to use the Port or Starboard key to proceed or to close the dialog.
2
10 |
Basic operation | AP60 User Guide
Display illumination
Light adjustment
Press the Power/Light key once to display the Light dialog. The brightness level is adjusted by
the rotary knob, the Up or the Down arrow keys.
Repeated presses on the Power/Light key toggles preset brightness levels (9 - 5 - 2- 0).
Refer also to “Day and Night illumination” on page 25.
Taking command
You can take command from any control unit and/or remote unit by pressing one of the
mode keys.
Active/Passive units
In a system including more than one control unit and/or remote units, only one unit can be in
control at a time. All other units will be passive.
A passive unit is indicated in the mode status field with passive icon.
Active unit Passive unit
On a passive unit illumination can be adjusted and alarm sound can be locally silenced. All
other functions are unavailable until you activate the unit by pressing one of the mode keys.
Selecting autopilot modes
You switch between Standby, Auto, NoDrift and NAV modes by pressing the corresponding
mode key.
When in Standby mode you select NFU (Non Follow Up) by pressing the Port or Starboard
key.
When in Standby or NFU mode you select FU by pressing the Port and Starboard key
simultaneously.
Switching from automatic mode to hand steering
You switch the autopilot to Standby mode from any operational mode by a short press on
the STBY key.
60
AP
NAV
MENU
TURN
WORK
NO-
DRIFT
AUTO STBY
| 11
Basic operation | AP60 User Guide
Selecting prole
The autopilot has two different profiles that can be associated with different work modes.
The name of the profile in use is displayed in the mode status panel.
¼ Note: When the boat type is set to Planing or Waterjet, the profile change automatically
based on the transition speed setting and the boat speed. Refer to “Transition speed” on
page 33.
When the boat type is set to Disp (Displacement), you select the profile manually:
In STANDBY mode: Press the WORK key to switch to AUTO mode and WORK profile.
WORK
x1
In AUTO, NAV and NODRIFT modes: Press the WORK key to toggle between NORMAL
and WORK profile.
WORK
x1
Acknowledging a message
When an alarm situation occurs, the alarm icon will be active, and the alarm dialog will show
alarm cause.
Press the Starboard key to acknowledge an alarm or a warning. This will silence the sound and
remove the alarm dialog.
The icon will remain active, and the alarm/warning will be included in the alarm listing as long
as the alarm situation is present.
Using the thruster
If the vessel is equipped with a thruster, this can be connected to the autopilot system. The
thruster can be configured for NORMAL and WORK profiles, and profile in use will then
decide if the vessel can be controlled by rudder only, or by rudder and thruster.
Two settings affect how the thruster is used by the autopilot. See description in:
Thruster inhibit speed” on page 34
Thruster assist” on page 37.
Activating and de-activating the thruster
You can manually toggle the thruster on/off by pressing and holding the WORK key. A
popup with slide bar will be displayed as long as the key is pressed.
12 |
The operational modes | AP60 User Guide
The operational modes
Mode overview
The autopilot has several steering modes. Number of modes and features within the mode
depend on available input as shown below.
MODE FEATURE DESCRIPTION REQUIRED INPUT
Standby
Standby mode used when manually
steering at the helm. Compass and rudder
angle will be shown on the display
NFU
Non-Follow-Up steering where the rudder
movement is controlled by using the red
(Port) or green (Starboard) keys, or by
another NFU unit
Rudder feedback
FU
Follow-up steering where the rudder
angle is set by the rotary knob or by
another FU unit
Rudder feedback
AUTO
Auto compass mode. Keeps the vessel on
set heading
Heading
Heading
capture
Aborts the turn and uses the
instantaneous compass reading as set
heading
Turn
(Pattern)
Moves the vessel automatically in pre-
defined turn steering patterns
NoDrift
Automatic steering, keeping the vessel on
a straight bearing line by compensating
for drift
Heading, speed,
position
Heading
capture
Aborts the turn and uses the
instantaneous compass reading as set
heading
NAV
Navigation steering. The vessel is steered
to a specific waypoint location, or through
a route set on a chart plotter
Heading, speed, Cross
Track Distance (XTD)
and Bearing waypoint
to waypoint (BWW)
External system selector
An external switch can be used for changing over from manual to automatic steering.
Manual steering
When an external system selector is set to manual steering, the autopilot will be disengaged.
The control unit will display information as in Standby mode. It is not possible to change to
FU, NFU or to any automatic mode. The menus can however be used, alarms acknowledged
and illumination adjusted.
When the autopilot is disengaged by an external selector, this will be indicated in the mode
display.
Autopilot operation
When the external selector is set to automatic steering, the autopilot will go directly to AUTO
heading mode with present heading as set reference. The autopilot can then be used in all
operational modes.
The mode descriptions in the following pages assumes that an external system selector has
opened for autopilot operation, or that no external selector is installed.
3
| 13
The operational modes | AP60 User Guide
Hand steering
Standby mode
Standby mode is used when you steer at the helm. The autopilot will always be in this mode
when you turn the system on.
Switch the autopilot to Standby mode from any operation by a short press on the STBY key.
The Standby mode Info panel
- HDG: Current heading and Header repeater unit (True or Magnetic)
- SOG: Speed over ground. If SOG is missing, the speed info will be taken from log (STW). If
also log is missing or erratic, speed can be set manually from the Quick menu (MAN).
- COG: Course over ground
Non-Follow-Up (NFU) steering
In NFU mode you use the Port and Starboard keys to control the rudder. The the rudder will
move as long as the key is pressed.
Select NFU mode by pressing the Port or Starboard keys when the autopilot is in Standby or
FU mode.
The NFU mode Info panel
- HDG: Current heading and Header repeater unit (True or Magnetic)
- SOG: Speed over ground. If SOG is missing, the speed info will be taken from log (STW). If
also log is missing or erratic, speed can be set manually from the Quick menu (MAN).
- COG: Course over ground
Follow-up (FU) steering
In FU mode you use the rotary knob to set rudder angle. The rudder will move to the
commanded angle and then stop.
Select FU mode by pressing the Port and Starboard keys simultaneously when the system is
in Standby or NFU mode.
The FU mode Info panel
- Set rudder angle
- SOG: Speed over ground. If SOG is missing, the speed info will be taken from log (STW). If
also log is missing or erratic, speed can be set manually from the Quick menu (MAN).
- COG: Course over ground
Quick menu in Standby, FU and NFU mode
From the Quick menu in Standby, NFU and FU mode you can change sources used for
steering, display active alarms and set the vessel’s speed if this is not available from sensors.
The Quick menu includes access to the Settings dialogs.
Activate the Quick menu by a short press on the MENU key
Settings
Menus used for installation and system setup. See “System configuration on page 25
onwards.
Sources
Gives access to automatic and manual source selection menus.
Source setup is done on initial start up of the system. It is also required to run the source
selection if any part of the network has been changed or replaced.
See “Selecting data sources” on page 26 for more details.
14 |
The operational modes | AP60 User Guide
Automatic source selection
The Auto Select option will look for all sources connected to the network. If more than one
source is available for each data type, the system will automatically select from an internal
priority list.
Make sure all devices are connected and are turned on before selecting the Auto Select
option.
Manual source selection
This option allows you to manually select sources. This is generally only required where there
is more than one source for the same data, and where the internal priority is not giving the
preferred selection.
Alarm status
Displays a list of current alarms.
Speed adjustment
Used to manually set the vessel speed if a speed log or other speed source is not connected.
Auto modes
AP60 includes two automatic modes:
- AUTO compass mode keeps the vessel on set heading
- NoDrift mode combines heading and position information, and keeps the vessel on a
straight track
Wind/
Current
Wind/
Current
AUTO compass mode NoDrift mode
You select the mode by pressing the corresponding mode key
AUTO mode
In AUTO mode the autopilot issues rudder commands required to steer the vessel
automatically on a set heading.
1. Steer the vessel onto the desired heading
2. Press the AUTO key to activate AÙTO mode
- The autopilot selects the current vessel heading as the set heading.
¼ Note: It is only possible to select TO mode if valid heading is available.
The AUTO mode Info panel
- SET HDG: Set heading and Header repeater unit (True or Magnetic)
- SOG: Speed over ground. If SOG is missing, the speed info will be taken from log (STW). If
also log is missing or erratic, speed can be set manually from the Quick menu (MAN)
- COG: Course over ground
| 15
The operational modes | AP60 User Guide
Changing set heading in AUTO mode
You adjust set heading by using the rotary knob or the Port/Starboard keys.
Turn the rotary knob
- The heading is changed with 1° for each step made by the knob. One revolution equals
4
Press the Port or Starboard key
- The heading increment is set by the user, and can be 10, 5, 1 or 0.1° (default is 1°). See
“Heading and course change increments” on page 26.
An immediate heading change will take place, also if the change is more than 180°. The new
heading will be maintained until a new course is set.
NoDrift mode
This mode the vessel is steered along a calculated track line, from present position to infinity
in a direction set by the user. If the vessel is drifting away from the original course line due to
current and/or wind, the vessel will follow the line with a crab angle.
1. Steer the vessel onto the desired course
2. Press the NODRIFT key to activate NoDrift mode
- The autopilot will draw an invisible track line based on current heading from the vessel’s
position
The autopilot will now use the position information to calculate the cross track distance, and
automatically keep your track straight.
¼ Note: It is not possible to select NoDrift if position or heading information is missing.
The NoDrift mode Info panel
- SET CRS: Set course and Header repeater unit (True or Magnetic)
- SOG: Speed over ground. If SOG is missing, the speed info will be taken from log (STW).
Speed can also be set manually from the Quick menu (MAN)
- COG: Course over ground
Changing set course in AUTO mode
You adjust set course by using the rotary knob or the Port/Starboard keys.
Turn the rotary knob
- The course is changed with 1° for each step made by the knob. One revolution equals 4
Press the Port or Starboard key
- The course increment is set by the user, and can be 10, 5, 1 or 0.1° (default is 1°). See
“Heading and course change increments” on page 26.
An immediate course change will take place, also if the change is more than 180°. The new
course will be maintained until a new course is set.
The Quick menu in AUTO modes
From the Quick menu in AUTO and NoDrift modes you can change the rudder angle and
counter rudder angle used to maintain the set heading. You can also set the vessel’s speed if
this is not available from sensors.
The Quick menu includes access to the Settings dialogs.
Activate the Quick menu by a short press on the MENU key
Settings
Menus used for installation and system setup. See “System configuration on page 25
onwards.
16 |
The operational modes | AP60 User Guide
Rudder gain
This parameter determines the ratio between commanded rudder and the heading error. The
higher rudder gain value the more rudder is applied.
C. The value is set too high. Steering becomes unstable and often the overshoot will
increase
D. The value is set too low. It will take a long time to compensate for a heading error, and the
autopilot will fail to keep a steady course
A B
Counter rudder
Counter rudder is the amount of counteracting (opposite) rudder applied to stop the turn at
the end of a major course change.
The settings depends on vessel’s characteristics, loaded/ballast conditions and rate of turn.
If the vessel has good dynamic stability, a relatively small value will be sufficient
An unstable vessel will require high value
The greater the vessel’s inertia, the greater value will be required
Increasing counter rudder value may result in some higher rudder activity also when steering
a straight course.
The best way of checking the value of the Counter rudder setting is when making turns.
The figures illustrate the effects of various Counter Rudder settings;
E. Counter rudder value too low; overshoot response
F. Counter rudder value is too high; sluggish and creeping response
G. Correct setting of Counter rudder; ideal response
A
C
B
Perform various course changes and observe how the boat settles on the new heading.
Start with small changes, 10-20 degrees, and proceed with bigger changes, 60-90 degrees.
Adjust Counter rudder value to obtain best possible response as in illustration C.
¼ Note: As many boats turns differently to port versus starboard (due to propeller rotation
direction), do the course changes in both directions. You may end up with a compromise
setting of Counter rudder that gives a little overshoot to one side and a bit creeping response
to the other.
Speed
Used to manually set the vessel speed if a speed log or other speed source is not connected.
Heading capture
When the vessel is turning in AUTO or NoDrift mode, an instant re-press on the mode key
activates the heading capture function. This will automatically cancel the turn, and the vessel
will continue on the heading read from the compass the very moment you pressed the mode
key.
| 17
The operational modes | AP60 User Guide
Turn pattern steering
Two turn patterns are included in the AP60 for use in AUTO mode.
You toggle between the two turn options by pressing the TURN key, then initiate the turn by
selecting the turn direction by pressing the Port or Starboard key.
¼ NOTE: If a turn is started from another mode, the pilot will be switched to AUTO mode when
the turn is initiated.
U-turn
The U-turn changes the current set heading to be 180° in the opposite direction.
The turn rate is identical to default rate of turn (ROT) setting. This cannot be changed during
the turn.
1. Press the TURN key to display the U-turn dialog
2. Press the Port or Starboard key to start the turn
- The set heading (A) is changed to 180° in the opposite direction, and the turn dialog is
closed.
A
S-turns
S-turns pattern makes the boat yaw around the set heading.
1. Press the TURN key twice to display the S-turn configuration dialog
2. Set the preferred turn radius and course change increments
3. Press the TURN key again to confirm your setting and proceed to the S-Turn initiation dialog
4. Press the Port or Starboard key to start the S-turn pattern steering
The S-turns configuration dialog will remain open as long as the S-turn is active. During the
turn you can alter the set course (A), turn radius (B) and course change (C) from within this
dialog.
C
A
B
Stopping the turn
You can at any time during a turn press any mode key to leave turn pattern steering and
return to default mode operation.
18 |
The operational modes | AP60 User Guide
Navigating mode
Warning: Navigational steering should only be used in open waters.
In NAV mode the AP60 can use steering information from an external chart plotter to direct
the vessel to one specific waypoint location, or through a series of waypoints.
¼ Note: It is not possible to select NAV mode if heading information is missing, or if steering
information is not received from the external chart plotter.
When in NAV mode, the autopilot uses the heading sensor as its heading source for course
keeping. The steering and speed information received from the external chart plotter alters
the set course to direct the vessel to the destination waypoint.
To obtain satisfactory navigation steering, the autopilot system must have valid input from
the chart plotter. Autosteering must be tested and determined satisfactory prior to entering
the navigation mode.
Start navigating
1. Start navigating to a waypoint or start a route on your chart plotter
2. Press the NAV key on the autopilot
3. Accept the waypoint as the location to steer towards to activate the navigational mode
- If the waypoint is not accepted within 8 seconds, the dialog will be removed and the
autopilot will remain in active mode
The NAV mode Info panel
- XTD: Cross Track Distance
- CTS: Course to steer (set heading calculated by the autopilot)
- SOG: Speed over ground. If SOG is missing, the speed info will be taken from log (STW).
Speed can also be set manually from the Quick menu (MAN)
- WPT: Waypoint name or number
- DTW: Distance to next waypoint
- BWW: Bearing to next waypoint
- COG: Course over ground
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Simrad AP60 Operating instructions

Category
Navigational compasses
Type
Operating instructions

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