Simrad AP44 Quick Manual

Page 1
AP44
Quick Guide
1 2 3 4 5
STBY MODE AUTO
MENU
X
1
STBY key
2
MENU/X key
With no menu active:
• Press to display the Settings menu
• Press and hold to display the Display setup dialog
Menu and dialog operation:
• Press to return to previous menu level or to exit a dialog.
3
Rotary knob
Menu and dialog operation:
• Turn to move up and down in menus and dialogs
• Turn to adjust a value
• Press to select a menu option and to enter the next menu level
In FU mode:
• Turn to set rudder angle
In AUTO, NoDrift and Wind mode:
• Turn to change set heading/set course/set wind angle
4
MODE key
Press to display the Mode list
5
AUTO key
Press to turn the autopilot to AUTO mode
EN
Alarms
Alarm indication
Acknowledging the alarms
Acknowledge alarms by pressing the rotary knob. A reminder reappears at given intervals for as long as the alarm condition exists.
Enabling the alarm system and the alarm siren
Accessing the Device list
*988-11194-001*
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Autopilot modes
Mode Activate Mode display Rotary knob
Press Rotate
Standby
STBY
Switch to FU mode
No action
Follow-up From any mode:
select the Follow-up option in the Mode list.
From Standby mode: press the rotary knob.
No action Set the
rudder angle
AUTO
AUTO
No action Adjust
the set heading
Wind* From AUTO mode:
select the Wind option in the Mode list
No action Adjust set
wind
NoDrift From AUTO mode:
select the NoDrift option in the Mode list.
No action Adjust the
set course
NAV From any mode:
select the NAV option in the Mode list.
No action No action
¼ Note: * Mode is only available when the boat type is set to SAIL.
The autopilot page
The content varies with active mode. All modes include:
• Response (AC12N/AC42N/SG05) / Profile (NAC-2/NAC-3) mode (A)
• Heading indicator, analog and digital (B)
• Autopilot mode indication (C)
• Rudder indicator, analog and digital (D)
Display setup
x
3s
When the Backlight level field is active, subsequent presses on the MENU key adjusts backlight level in decrements of 30% .
Selecting an autopilot mode using the MODE key
Press the MODE key and select the relevant option from the Mode list.
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ENGLISH
AP44
Operator Manual
www.simrad-yachting.com
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Page 5
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 owner’s 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 responsible for observing safe boating practices.
NAVICO HOLDING AS AND ITS SUBSIDIARIES, BRANCHES AND AFFILIATES DISCLAIM ALL LIABILITY 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 information 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 subsidiaries, branches and affiliates reserve the right to make changes to specifications without notice.
Trademarks
Simrad® is used by license from Kongsberg. NMEA® and NMEA 2000® are registered trademarks of the National
Marine Electronics Association.
Copyright
Copyright © 2016 Navico Holding AS.
Warranty
The warranty card is supplied as a separate document. In case of any queries, refer to the brand website of your display or
system: www.simrad-yachting.com.
Preface | AP44 Operator Manual
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Compliance statements
This equipment complies with:
CE under EMC directive 2014/30/EU
The requirements of level 2 devices of the Radio communications
(Electromagnetic Compatibility) standard 2008
The relevant Declaration of conformity is available in the product's section at the following website: www.simrad-yachting.com.
About this manual
This manual is a reference guide for operating the AP44. It assumes that all equipment is installed and configured, and that the system is ready to use.
The manual assumes that the user has basic knowledge of navigation, nautical terminology and practices.
Important text that requires special attention from the reader is emphasized as follows:
Ú
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.
Manual version
This manual is written for software version 1.0. The manual is continually updated to match new software releases. The latest available manual version can be downloaded from www.simrad­yachting.com.
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Preface | AP44 Operator Manual
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Contents
7 Introduction
7
Manuals 8 AP44 Front panel and keys 9 The autopilot page
10 Basic operation
10 Safe operation with the autopilot 10 Turning the unit on and off 11 Operating the menu system 12 Display setup
13 Autopilot modes
13 Selecting an autopilot mode 13 Standby mode 13 Follow-up (FU) mode 13 AUTO mode (Heading hold) 15 Wind mode 16 NoDrift mode 17 Heading capture 17 NAV mode 19 Turn pattern steering 23 Using the autopilot in an EVC system
24 Trip log
25 Alarms
25 Alarm indication 25 Acknowledging the alarms 26 Enabling the alarm system and the alarm siren 27 Alarm history
28 Software setup
28 Calibration 33 Damping 34 Autopilot settings 40 System settings
Contents | AP44 Operator Manual
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45 Maintenance
45
Preventive maintenance 45 Cleaning the display unit 45 Checking the connectors 45 Software update
48 Menu flow chart
50 Technical specifications
51 Dimensional drawing
52 Terms and abbreviations
54 Supported data
54 NMEA 2000 PGN (transmit) 54 NMEA 2000 PGN (receive)
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Contents | AP44 Operator Manual
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Introduction
The AP44 is a networked autopilot display and control unit. The unit is compatible with a range of Navico autopilot computers,
including AC12N, AC42N, NAC-2, NAC-3 and SG05 autopilot computers.
The AP44 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
All parts of the autopilot system must be installed and configured according to supplied documentation prior to using the autopilot. The following steps are required:
Mechanical installation and wiring of all units. Refer to separate
documentation for the units
Software setup of the system. Refer to "Software setup" on page 28
Commissioning and setup of the autopilot computer. Refer to
the installation and commissioning documentation for your autopilot computer
Manuals
The following documentation is available for the AP44 system:
AP44 Operator manual (988-11189-00n) - this manual
AP44/IS42/Triton2 Installation guide (988-11229-00n)
AP44/IS42/Triton2 Mounting template (988-11230-00n)
NAC-2/NAC-3 Autopilot computer Commissioning manual
(988-11233-00n)
AC12N/AC42N Installation manual (988-10276-00n)
Ú
Note: The last digit in the part numbers is the document's
revision code. The latest version of all documents can be downloaded from the product website on www.simrad­yachting.com.
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Introduction | AP44 Operator Manual
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AP44 Front panel and keys
1 2 3 4 5
STBY
MODE AUTO
MENU
X
1 STBY key
Press to turn the autopilot to Standby mode.
2 MENU/X key
With no menu active:
Press to display the Settings menu
Press and hold to display the Display setup dialog
Menu and dialog operation:
Press to return to previous menu level or to exit a dialog
3 Rotary knob
Menu and dialog operation:
Turn to move up and down in menus and dialogs
Turn to adjust a value
Press to select a menu option and to enter the next menu
level
In FU mode:
Turn to set rudder angle
In AUTO, NoDrift and Wind mode:
Turn to change set heading/set course/set wind angle
4 MODE key
Press to display the Mode list
5 AUTO key
Press to turn the autopilot to AUTO mode
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Introduction | AP44 Operator Manual
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The autopilot page
The content of the autopilot page varies with active mode. All modes include:
Response (AC12N/AC42N/SG05) / Profile (NAC-2/NAC-3) mode
(A)
Heading indicator, analog and digital (B)
Autopilot mode indication (C)
Rudder indicator, analog and digital (D)
For more information, refer to the separate mode descriptions and to the "Terms and abbreviations" on page 52.
Introduction | AP44 Operator Manual
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Basic operation
Safe operation with the autopilot
Warning: An autopilot is a useful navigational aid,
but DOES NOT replace a human navigator.
Warning: Ensure the autopilot has been installed
correctly, commissioned and calibrated before use.
Do not use automatic steering when:
In heavy traffic areas or in narrow waters
In poor visibility or extreme sea conditions
When in areas where use of an 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
heading sensor used by the autopilot system
Verify at regular intervals the course and position of the vessel
Always switch to Standby mode and reduce speed in due time to
avoid hazardous situations
Turning the unit on and off
The unit has no power key, and it will be running as long as power is connected to the NMEA 2000 network backbone.
First time startup
When the unit is started for the first time and after a factory reset, the unit displays a setup wizard. Respond to the setup wizard prompts to select some fundamental setup options. These settings can later be changed and further configuration made as described in "Software setup" on page 28.
2
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Sleep mode
In Sleep mode, the backlight for screen and keys are turned off to save power. The system continues to run in the background.
You select Sleep mode from the Display setup dialog, activated by pressing and holding the MENU key. Switch from Sleep mode to normal operation by a short press on the MENU key.
Operating the menu system
All settings and configuration in the unit are available from the Settings menu, activated by pressing the MENU key.
Turn the Rotary knob to move up and down in the menus and in
the dialogs
Confirm a selection by pressing the Rotary knob
Return to previous menu level by pressing the MENU key
Edit a numeric value
1. Turn the Rotary knob to select the entry field
2. Press Rotary knob to turn the field into edit mode
-
The left digit starts flashing
3. Turn the Rotary knob to set the value for the flashing digit
4. Press the Rotary knob to move focus to the next digit
5. Repeat step 3 and 4 until all digits are set
6. Press the Rotary knob to leave edit mode for the selected field
7. Turn the Rotary knob to select the Cancel or Save buttons, then
press the Rotary knob to confirm your selection and to close the dialog
Selected field Field in edit mode
Ú
Note: You can at any time press the MENU key to leave a
dialog without saving the entries.
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Display setup
The display setup can be adjusted at any time from the Display setup dialog, activated by pressing and holding the MENU key.
The following options are available:
Backlight level: Adjusts the backlight level from Min (10%) to Max
(100%) in 10% increments
-
When the Backlight level field is active, subsequent presses on the MENU key adjusts backlight level in decrements of 30%
Display group: Defines which network group the unit belongs to
Night mode: Activates/deactivates the night mode color palette
Night mode color: Sets the night mode color palette
Invert day color: Changes the background color for the pages
from default black to white
Sleep: Turns the backlight for screen and keys off to save power
Ú
Note: All changes made to the display setup will apply to all
units belonging to the same display group. For more information about network groups, refer to "Network groups" on page 43.
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Autopilot modes
The autopilot has several steering modes. The number of modes and features within the mode depend on the autopilot computer, the boat type and available inputs, as explained in the description of the following steering modes.
Selecting an autopilot mode
You select Standby mode and AUTO mode by pressing the dedicated STBY and AUTO keys.
You select other modes and automatic features by selecting the relevant option from the Mode list, activated by pressing the MODE key.
Standby mode
Standby mode is used when you steer the boat at the helm.
Switch to Standby mode by pressing the STBY key.
Ú
Note: If sensor data vital for autopilot operation (e.g. rudder
response) is lost when the autopilot is running in an automatic mode, the system will automatically switch to Standby mode.
Follow-up (FU) mode
In FU mode you turn the rotary knob to set the rudder angle. The rudder will move to the commanded angle and then stop.
Switch to FU mode from any mode by selecting the Follow-up
option in the Mode list, or switch directly from Standy mode to FU mode by pressing the rotary knob.
AUTO mode (Heading hold)
In AUTO mode the autopilot issues rudder commands required to steer the vessel automatically on a set heading. In this mode the autopilot does not compensate for any drifting caused by current and/or wind (A).
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A
Switch to AUTO mode by pressing the AUTO key. When the
mode is activated, the autopilot selects the current boat heading as the set heading.
Changing set heading in AUTO mode
You adjust the set heading by turning the rotary knob. An immediate heading change takes place. The new heading is
maintained until a new heading is set.
Tacking and Gybing in AUTO mode
Ú
Note: Only available when the boat type is set to SAIL.
Tacking and Gybing in AUTO mode uses the heading as reference. The tacking/gybing operation changes the set heading to port or starboard with a fixed angle.
The tacking parameters are set in the Setup/Sailing parameters: The Tack angle defines the tacking angle, while the Tack time defines the rate of turn during the tack/gybe. Refer to "Autopilot settings" on page 34.
Initiate the Tack or Gybe function by selecting the Tack/Gybe
option in the Mode list.
-
The turn is started when the direction is selected in the dialog.
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Wind mode
Ú
Note: Wind mode is only available when the boat type is set to
SAIL. It is not possible to activate wind mode if wind information is missing.
When wind mode is engaged, the autopilot captures the current wind angle as steering reference, and adjusts the heading of the boat to maintain this wind angle.
Prior to entering wind mode the autopilot system must be operating in AUTO mode and with valid input from the wind transducer.
Switch to Wind mode by selecting the Wind option in the Mode
list
Warning: In wind mode the autopilot steers to the
apparent or true wind angle and not to a compass heading. Any wind shift could result in the vessel steering on an undesired course.
Tacking and Gybing in Wind mode
Tacking and Gybing in Wind mode can be performed when sailing with apparent or true wind as the reference. In either case the true wind angle must be less than 90 degrees (tacking) and more than 120° (gybing).
The tacking/gybing operation will mirror the set wind angle on the opposite tack.
The rate of turn during the tack/gybe is set by the Tack time in the Setup/Sailing menu. Refer to "Autopilot settings" on page 34.
Initiate the Tack or Gybe function by selecting the Tack/Gybe
option in the Mode list.
Confirm the tack/gybe in the dialog.
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Ú
Note: The autopilot will temporarily add a 5 degree bear-away
on the new tack to allow the boat to pick up speed. After a short period the wind angle will return to the set angle.
Ú
Note: If the Tack/Gybe is not confirmed the dialog will close
after 10 seconds, and the requested tack/gybe will not be initiated.
NoDrift mode
Ú
Note: It is not possible to select NoDrift mode if GPS position
and heading information is missing.
In NoDrift mode the vessel is steered along a calculated track line, from present position and in a direction set by the user. If the vessel is drifting away from the track line due to current and/or wind (A), the vessel will follow the line with a crab angle.
Prior to entering NoDrift mode the autopilot system must be operating in AUTO mode and with valid input from GPS and heading sensor.
Switch to NoDrift mode by selecting the NoDrift option in the
Mode list
-
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 steer along the calculated track.
Changing set course in NoDrift mode
You adjust the set course by turning the rotary knob. An immediate course change takes place. The new course is
maintained until a new course is set.
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Dodging
Ú
Note: Only available for AC12N/AC42N autopilot computers.
If you need to avoid an obstacle when using NoDrift mode, you can set the autopilot to Standby mode and power steer or use the helm until the obstacle is passed.
If you return to NoDrift mode within 60 seconds you can select to continue on previous set bearing line.
If you do not respond, the dialog disappears and the autopilot goes to NoDrift mode with current heading as set bearing line.
Heading capture
When the vessel is turning in AUTO or NoDrift mode, an instant re­press on the AUTO 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 AUTO key.
NAV mode
Ú
Note: NAV mode requires a compatible chartplotter connected
to the network. It is not possible to select NAV mode if heading information is missing, or if steering information is not received from the external chartplotter.
Warning: NAV mode should only be used in open
waters. Navigation mode must not be used while sailing, as course changes may result in unexpected tacks or gybes!
In NAV mode the autopilot uses steering information from an external chartplotter to direct the vessel to one specific waypoint location, or through a series of waypoints.
In NAV mode, the autopilot's heading sensor is used as heading source for course keeping. Speed information is taken from SOG or from selected speed sensor. The steering information received from the external chartplotter alters the set course to direct the vessel to the destination waypoint.
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To obtain satisfactory navigation steering, the autopilot system must have valid input from the chartplotter. Autosteering must be tested and determined satisfactory prior to entering NAV mode.
Ú
Note: If the chartplotter does not transmit a message with
bearing to next waypoint, the autopilot will steer using Cross Track Error (XTE) only. In that case you must revert to AUTO mode at each waypoint and manually change set course to equal bearing to next waypoint and then select NAV mode again.
Prior to entering NAV mode the chartplotter must be navigating a route or towards a waypoint.
Initiate NAV mode by selecting the NAV option in the Mode list
Confirm to switch to NAV mode in the dialog.
Turning in NAV mode
When your vessel reaches a waypoint, the autopilot will give an audible warning and display a dialog with the new course information.
There is a user defined limit for the allowed automatic course change to next waypoint in a route. If the course change is more than this set limit, you are prompted to verify that the upcoming course change is acceptable.
If the required course change to the next waypoint is less than
the course change limit, the autopilot will automatically change the course. The dialog will disappear after 8 seconds unless cleared by the Pages key.
If the required course change to next waypoint is more than the
set limit, you are prompted to verify that the upcoming course change is acceptable. If the turn is not accepted, the vessel will continue with the current set heading.
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Course change less than set limit Course change larger than set limit
The course change limit setting depends on the autopilot computer:
NAC-2/NAC-3: Course chg confirm angle, refer to "Steering (NAC-2/
NAC-3)" on page 35
AC12N/42N and SG05: Navigation change limit, refer to
"Automatic steering (AC12N/AC42N)" on page 39
Turn pattern steering
The system includes a number of automatic turn steering features when the autopilot is in AUTO mode.
Ú
Note: Turn pattern steering is not available if the boat type is
set to Sail. Instead the tack/gybe feature is implemented.
Turn variables
All turn patters, except the U-turn, have settings that you adjust before you start a turn or at any time when the boat is in a turn.
The turn settings are available from the Autopilot settings dialog. The variables are described for each turn pattern option in the following pages.
Starting and stopping a turn
Ú
Note: For starting a DCT turn, see "Depth contour tracking (DCT)" on
page 21.
You start the turn by selecting the turn option in the Mode list, followed by selecting the port or starboard options in the turn dialog to select the turn direction.
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You can at any time stop the turn by pressing the STBY key to return to Standby mode and manual steering.
C-turn (Continuous turn)
Steers the vessel in a circle.
Turn variable:
-
Rate of turn. Increasing the value makes the vessel turn a smaller circle.
U-turn
Changes the current set heading to be 180° in the opposite direction.
The turn rate is identical to Turn rate (NAC-2/NAC-3) and Rate limit (AC12N/AC42N) setting (refer to "Autopilot settings" on page 34). The turn rate cannot be changed during the turn.
Spiral turn
Makes the vessel turn in a spiral with a decreasing or increasing radius.
Turn variables:
- Initial radius
- Change/turn. If this value is set to zero, the boat will turn in a circle. Negative values indicate decreasing radius while positive values indicate increasing radius.
Zigzag turn
Steers the vessel in a zigzag pattern. You set the initial heading change before the turn is started. During the turn you can alter the main heading by turning the
rotaty knob (only for AC12N/AC42N autopilot computers).
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Turn variables:
-
Course change (A)
- Leg distance (B)
B
A
Square turn
Makes the vessel automatically turn 90° after having travelled a defined leg distance.
During the turn you can alter the main heading by turning the rotaty knob (only for AC12N/AC42N autopilot computers).
Turn variable:
-
Leg distance
Lazy-S turn
Makes the vessel yaw around the main heading. You set the selected heading change before the turn is started. During the turn you can alter the main heading by turning the
rotaty knob (only for AC12N/AC42N autopilot computers).
Turn variables:
- Course change (C)
- Turn radius (D)
D
C
Depth contour tracking (DCT)
Makes the autopilot follow a depth contour.
Ú
Note: DCT turn pattern is only available if the system has a valid
depth input.
Warning: Do not use the DCT turn pattern unless the
seabed is suitable. Do not use it in rocky waters where the depth is varying significantly over a small area.
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To initiate a DCT turn:
Ensure that you have depth reading on the panel or on a
separate depth instrument
Steer the boat to the depth you want to track, and in the
direction of the depth contour
Activate AUTO mode, then select depth contour tracking while
monitoring the depth reading
Select the port or starboard option in the turn dialog to initiate
the depth contour steering to follow the bottom sloping to starboard or to port
Port option
(depth decreases to port)
Starboard option
(depth decreases to starboard)
Turn variables:
-
Depth gain. This parameter determines the ratio between commanded rudder and the deviation from the selected depth contour. The higher depth gain value the more rudder is applied. If the value is too small it will take a long time to compensate for drifting off the set depth contour, and the autopilot will fail to keep the boat on the selected depth. If the
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value is set too high the overshoot will increase and the steering will be unstable.
-
CCA. The CCA is an angle that is added to or subtracted from the set course. With this parameter you can make the boat yaw around the reference depth with lazy-s movements. The larger the CCA the bigger yawing will be allowed. If the CCA is set to zero there is no S-ing.
- Ref. depth. This is the reference depth for the DCT function. When DCT is initiated the autopilot reads the current depth and set this as the reference depth. The reference depth can be changed when the function is running.
Ú
Note: If depth data is lost during DCT the autopilot will
automatically switch to AUTO mode. It is recommended to turn ON the AP Depth Data Missing alarm when using DCT. When this alarm is activated an alarm will be raised if the depth data is lost during DCT.
Using the autopilot in an EVC system
When the AP44 is connected to an EVC system via the SG05, you can take manual control of the steering regardless of the autopilot mode.
The mode indicator is replaced by a dash to indicate EVC override. The system returns to AP44 control in Standby mode if no rudder
command is given from the EVC system within a predefined period.
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Trip log
The Trip log is available from the Settings menu.
The Trip log is a temporary page. It remains on the screen until you press the STBY or AUTO key.
There are three log options available:
Trip 1: records distance traveled through the water (Log input)
Trip 2: records distance traveled via GPS input
Log: shows total distance run from system installation or from a
system restore
Ú
Note: Trip 1 requires correctly calibrated boat speed for
accurate trip records. Trip 2 requires a compatible GPS connected to the network.
You start, stop and reset the active Trip log from the menu, activated by pressing the rotary knob.
4
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Alarms
The system continuously checks for dangerous situations and system faults while the system is running. The alarm system can be activated if any alarm settings are exceeded.
Ú
Note: If sensor data vital for autopilot operation (e.g. rudder
response) is lost when the autopilot is running in an automatic mode, the system will automatically switch to Standby mode.
Alarm indication
An alarm situation is indicated with an alarm pop-up. If you have enabled the siren, the alarm message is followed by an audible alarm.
A single alarm is displayed with the name of the alarm as the title, and with details for the alarm.
If more than one alarm is activated simultaneously, the alarm pop­up can display 2 alarms. The alarms are listed in the order they occur with the alarm activated first at the top. The remaining alarms are available in the Alarms dialog.
Type of messages
The messages are classified according to how the reported situation affects your vessel. The following color codes are used:
Color Importance
Red Critical Orange Important Yellow Standard Blue Warning Green Light warning
Acknowledging the alarms
The most recent alarm is acknowledged by pressing the rotary knob.
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This removes the alarm notification, and silences the alarm from all units that belong to the same alarm group. A reminder reappears at given intervals for as long as the alarm condition exists.
Ú
Note: An alarm received from non Navico units on the network
must be acknowledged on the unit generating the alarm.
Enabling the alarm system and the alarm siren
You enable the alarm system and the alarm siren from the Alarms menu.
Individual alarm settings
You enable/disable the single alarm and set the alarm limits from the Alarms settings dialog.
Press the rotary knob to display the menu from where you can
enable/disable the alarm and set the alarm limit
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Alarm history
The Alarm history dialog stores alarm messages until they are manually cleared.
You show alarm details for a selected alarm and clear all alarms in the alarm history by pressing the rotary knob when the Alarm history dialog is active.
Menu options Alarm details
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Software setup
Prior to use, the AP44 requires a number of settings be configured in order for the system to perform as expected. Access to the required options are found in the Settings menu, accessed by pressing the MENU key.
Ú
Note: The following settings are described in other sections of
this manual:
"Trip log" on page 24 "Alarms" on page 25
Calibration
Ú
Note: Once the unit is setup and before you proceed with
calibration ensure all network sources are selected and configured. Refer to "System settings" on page 40.
Boat speed
Speed calibration is necessary to compensate for hull shape and paddlewheel location on your boat. For accurate speed and log readings, it is essential that the paddlewheel is calibrated.
SOG reference
This is an auto calibration option that uses speed over ground (SOG) from your GPS, and compares the average of SOG against the average boat speed from the speed sensor for the duration of the calibration run.
Ú
Note: This calibration should be made in calm sea with no
effect from wind or tidal current.
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Bring the boat up to cruising speed (above 5 knots), then
Select the SOG reference option
When the calibration is completed the Boat speed calibration scale will show the adjusted percentage value of the boat speed.
Distance reference
Allows you to calibrate the log via a distance reference. You will need to complete consecutive runs, under power at a constant speed made along a given course and distance.
Ú
Note: The distance should be greater than 0.5 NM, ideally 1 NM.
To eliminate the effect of tidal conditions it is advisable to perform at least two runs, preferably three, along the measured course.
Referring to the diagram, A and B are the markers for each run. X is the actual distance for each run.
Enter the desired distance in nautical miles that you would like to
calculate the distance reference over
When the boat gets to the predetermined starting position of the
distance reference calculation, start the calibration timer
As the boat passes marks A and B on each run, instruct the
system to start and stop and finally OK to end calibration.
x
BA
Use SOG as boat speed
If boat speed is not available from a paddle wheel sensor, it is possible to use speed over ground from a GPS. SOG will be displayed as boat speed and used in the true wind calculations and the speed log.
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Wind
MHU (Masthead unit) alignment
This provides an off set calibration in degrees to compensate for any mechanical misalignment between the masthead unit and the center line of the vessel.
To check the masthead unit alignment error we recommend you use the following method which involves a sailing trial:
Sail on a starboard tack on a close hauled course and record the
wind angle, then repeat the process on a port tack
Divide the difference between the two recorded numbers and
enter this as the wind angle off set
If the starboard apparent wind angle is greater than the port angle, then divide the difference by 2 and enter this as a negative offset.
If the port angle is greater than the starboard then divide the difference by 2 and enter this as a positive offset.
Enter the offset it into the MHU Align calibration field.
Depth
Depth offset
All transducers measure water depth from the transducer to the bottom. As a result, water depth readings do not account for the distance from the transducer to the lowest point of the boat (for example; bottom of the keel, rudder, or propeller) in the water or from the transducer to the water surface.
For depth below keel (A): Set the distance from transducer to the
bottom of the keel as a negative value. For example, -2.0.
For depth below transducer (B): no offset required.
For depth below surface (waterline) (C): Set the distance from
transducer to the surface as a positive value. For example,+0.5.
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A B C
+0.5
+0.0
-2.0
Aft depth offset
This option allows the system to display two depth readings. The Aft depth is calibrated in the same manner as the Depth offset.
Ú
Note: Aft Depth is only available when a valid signal is received
from a second and compatible NMEA 2000 or NMEA 0183 device.
Heading
Ú
Note: All magnetic compasses must be calibrated to ensure
correct heading reference. The calibration must be made on the active compass. The calibration should be done in calm sea conditions and with minimal wind and current to obtain good results.
Offset
The Offset option is used for compensating for any difference between the boat’s center line (A) and the compass lubber line (B).
1. Find the bearing from the boat position to a visible object. Use a
chart or a chart plotter
2. Steer the boat so that the center line of the boat is aligned with
the bearing line pointing towards the object.
3. Change the offset parameter so that the bearing to the object
and the compass readout becomes equal.
Ú
Note: Make sure that both the compass heading and the
bearing to the object have the same unit (°M or °T).
B
A
x
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User triggered calibration
Ú
Note: Before the calibration is started, make sure that there is
enough open water around the vessel to make a full turn.
The Calibrate option is used for manually starting the heading calibration procedure.
During this calibration, the compass measures the magnitude and direction of the local magnetic field.
The illustration shows magnitude of local field in percentage of earth's magnetic field (A), direction of local field (B) with respect to the boat's centerline (C).
Follow the on-screen instruction, and use about 60-90 seconds to make a full circle. Keep turning until the system reports a pass.
If the local magnetic field is stronger than the earth’s magnetic
field (the local field is reading more than 100%), the compass calibration will fail.
If the local field is reading more than 30%, you should look for
any interfering magnetic objects and remove them, or you should move the compass to a different location. The (local) field angle guides you to the local interfering magnetic object.
Ú
Note: In certain areas and at high latitudes the local magnetic
interference becomes more significant, and heading errors exceeding ±3° may have to be accepted.
Automatic calibration
An auto calibration option is available for compasses that offers a fully automatic calibration procedure.
See more instructions in the documentation delivered with your compass.
Magnetic variation
Defines how magnetic variation is handled by the system.
Auto: Receives variation data from a network source
Manual: Used for manually entering a value for the magnetic
variation
20%
0
30˚
030˚
B
C
A
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Use COG as heading
If heading data is not available from a compass sensor, it is possible to use COG from a GPS. COG will be used in the true wind calculations.
Ú
Note: The autopilot cannot be operated using COG as the
heading source. COG cannot be calculated when stationary.
Pitch/Roll
If a suitable sensor is fitted, the system will monitor the inclination of the vessel. The offset value should be entered to adjust the readings so that while the vessel is stationary at the dock, the Pitch and Roll value reads 0.
Environment
If a suitable sensor is fitted, the system will monitor the current sea/air temperature and barometric pressure.
The offset value to be entered should adjust the reading from the sensor to match a calibrated source.
Rudder
Starts the automatic calibration of the rudder feedback. This procedure sets the correct relationship between the physical rudder movement and the rudder angle readout.
Follow the instructions on the display to perform the rudder feedback calibration procedure.
Advanced
This option is used for manually applying an offset to the displayed data for third party sensors which cannot be calibrated through the AP44.
Damping
If data appears erratic or too sensitive, damping may be applied to make the information appear more stable. With damping set to off, the data is presented in raw form with no damping applied.
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Autopilot settings
The autopilot settings can be split between settings done by the user, and settings done during installation and commissioning of the autopilot system.
User settings can be changed for various operational conditions
or user preferences
Installation settings are defined during commissioning of the
autopilot system. No changes should later be done to these settings
Both user settings and installation settings depends on which autopilot computer that is connected to the system.
NAC-2/NAC-3 Autopilot computer settings AC12N/AC42N Autopilot computer settings
The following sections describe the settings that can be changed by the user. The settings are described per autopilot computer.
Installation settings are available in the documentation following the autopilot computers.
Ú
Note: For Turn pattern settings, refer to "Turn pattern steering" on
page 19.
NAC-2/NAC-3 Autopilot computer
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Steering (NAC-2/NAC-3)
These options allow for manually changing parameters that were set during the commissioning of the autopilot computer. For more details, refer to the separate documentation for the autopilot computer.
Turn rate: Preferred turn rate used while turning in degrees per
minute
Rudder gain: This parameter determines the ratio between
commanded rudder and the heading error. The higher rudder value the more rudder is applied. If the value is too small it will take a long time to compensate for a heading error, and the autopilot will fail to keep a steady course. If the value is set too high the overshoot will increase and the steering will be unstable.
Counter rudder: Relation between change in heading error and
applied rudder. Higher counter rudder will reduce applied rudder faster when approaching the set heading
Autotrim: Controls how aggressively the autopilot will apply
rudder to compensate for a constant heading offset, e.g. when external forces such as wind or current affects the heading. Lower autotrim will give faster elimination of a constant heading offset
Ú
Note: In VRF mode this parameter controls the time constant of
the rudder estimate. A lower value makes the rudder estimate faster, i.e. that it will more quickly catch up with the boat's movements.
Init rudder: Defines how the system moves the rudder when
switching from power steering to an automatic mode.
- Center: Moves the rudder to zero position
- Actual: Maintains the rudder offset
Rudder limit: Determines the maximum rudder movement in
degrees from midship position that the autopilot can command the rudder in the automatic modes. The Rudder limit setting is only active during autosteering on straight courses, NOT during course changes. Rudder limit does not affect Non-Follow-up steering
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Off heading limit: Sets the limit for the off heading alarm. An
alarm occurs when the actual heading deviates from the set heading more than the selected limit
Track response: Defines how fast the autopilot shall respond after
having registered a cross track distance
Track approach angle: Defines the angle used when the vessel is
approaching a leg. This setting is used both when you start navigating and when you use track offset
Course change confirm angle: Defines the limits for course
change to next waypoint in a route. If the course change is more than this set limit, you are prompted to verify that the upcoming course change is acceptable.
Sailing (NAC-2/NAC-3)
Ú
Note: Sailing parameters are only available when the boat type
is set to Sail.
Wind mode: Select what wind function the autopilot will use
when in wind mode
-
Auto: If TWA is <70º: Wind mode will use AWA If TWA is ≥70º: Wind mode will use TWA
- Apparent
- True
Tack time: Controls the rate of turn (tack time) when performing
a tack in wind mode.
Tack angle: Controls the angle that the boat will tack to between
50º - 150º in AUTO mode
Manual speed: If neither boat speed or SOG data is available and
or deemed reliable a manual value for speed source can be entered and used by the autopilot to aid steering calculations
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AC12N/AC42N Autopilot computer
Response (AC12N/AC42N)
The AC12N/42N includes three different sets of steering modes; High (HI), Low (LO) and Wind. The mode can be automatically or manually selected.
The speed at which the autopilot automatically changes from LO to HI parameters (or opposite) is determined by the Transition speed setting, defined during the commissioning of the autopilot. Refer to the detailed description in the autopilot computer's documentation.
You can manually fine tune each of the three response modes. Level 4 is default with parameter values as set by the autotune function. If no autotune is made (not recommended) the level 4 values are the factory default values.
A low response level reduces the rudder activity and provides a
more “loose” steering
A high response level increases the rudder activity and provides a
more “tight” steering. A too high response level causes the boat to start lazy-s movements.
The Wind response is used on sailboats
Increase the Wind value if the difference between the set wind
angle and the actual wind angle is too big
Decrease the Wind value if the actual wind angle is S-ing around
the set wind angle, or if the rudder activity is too high
The performance mode is indicated in the top left corner of the autopilot page.
HI-A: High response mode set automatically
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LO-A: Low response mode set automatically
HI-M: High response mode set manually
LO-M: Low response mode set manually
Ú
Note: If no speed input is available the autopilot defaults to LO
steering parameters when engaging an automatic mode. This is a safety feature to prevent oversteering
Sea state filter (AC12N/AC42N)
This filter is used to reduce rudder activity and autopilot sensitivity in rough weather.
OFF: Sea state filter is disabled. This is the default setting.
AUTO: Reduces rudder activity and autopilot sensitivity in rough
weather by an adaptive process. The AUTO setting is recommended if you want to use the sea state filter.
MANUAL: Linked to the steering response control settings
described previously. It may be used to manually find the optimum combination of course keeping and low rudder activity in rough but steady sea conditions.
Sailing (AC12N/AC42N)
Ú
Note: Sailing parameters are only available when the boat type
is set to Sail.
Tack time: Controls the rate of turn (tack time) when performing
a tack in wind mode.
Tack angle: Controls the angle that the boat will tack to between
50º - 150º in AUTO mode
Wind mode: Select what wind function the autopilot will use
when in wind mode
-
Auto: If AWA is ≤60º: Wind mode will use AWA If AWA is >60º: Wind mode will use TWA
- Apparent
- True
VMG optimizing: Optimize the VMG to wind. The function will be
active for 5–10 minutes after a new wind angle has been set and only when beating.
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Layline steering: When enabled the Cross Track Error (XTE) from
the navigator will keep the boat on the track line. If the XTE from the navigator exceeds 0.15 Nm, the autopilot will calculate the layline and track towards the waypoint.
Automatic steering (AC12N/AC42N)
This option allows for manually changing parameters that were set during the commissioning of the autopilot computer. For more details of the settings, refer to the separate documentation for the autopilot computer.
Transition speed: This is the speed at which the autopilot will
automatically change the steering parameter set from HI to LO parameters, or vice versa. On power boats it is recommended to set the Transition speed to a speed that represents the speed where the hull begins to plane or the speed where you change from slow to cruising speed On sailboats the Transition speed should be set to 3-4 knots to give the best response in a tack
High/Low
-
Rudder gain: This parameter determines the ratio between commanded rudder and the heading error. The higher rudder value the more rudder is applied. If the value is too small it will take a long time to compensate for a heading error, and the autopilot will fail to keep a steady course. If the value is set too high the overshoot will increase and the steering will be unstable.
- Counter rudder: Relation between change in heading error and applied rudder. Higher counter rudder will reduce applied rudder faster when approaching the set heading
- Auto trim: Controls how aggressively the autopilot will apply rudder to compensate for a constant heading offset, e.g. when external forces such as wind or current affects the heading. Lower autotrim will give faster elimination of a constant heading offset
- Rate limit: The rate the vessel is turning in degrees per minute
Minimum rudder: Some boats may have a tendency of not
responding to small rudder commands around the course keeping position because of a small rudder, a rudder deadband,
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whirls/disturbance of the water-stream passing the rudder or it is a single nozzle water jet boat. By manually adjusting the minimum rudder function, the course keeping performance might be improved on some boats. This will however increase the rudder activity.
Min wind angle starboard / Min wind angle port: This is the
minimum apparent wind angle that will keep the sails well shaped and give an acceptable thrust. This parameter will vary from boat to boat. The setting applies for the tack-prevent function. It also applies when the autopilot is operating in WindNAV mode. You can select different minimum wind angles for port and starboard. The difference between port and starboard will be taken into account when calculating the Distance To Turn (DTT).
Navigation change limit: Defines the limits for course change to
next waypoint in a route. If the course change is more than this set limit, you are prompted to verify that the upcoming course change is acceptable
System settings
Network
Sources
Data sources provide live data to the system. The data may originate from modules internal to the unit (for
example internal GPS or sonar), or external modules connected to the NMEA 2000 or via NMEA 0183 if available on the unit.
When a device is connected to more than one source providing the same data, the user can choose the preferred source. Before commencing with source selection make sure all external devices and the NMEA 2000 backbone are connected and are turned on.
Auto select: Looks for all sources connected to the device. If more
than one source is available for each data type, selection is made from an internal priority list. This option is suitable for the majority of installations.
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Manual source selection: Manual selection is generally only
required where there is more than one source for the same data, and the automatically selected source is not the one desired.
Device list
The Device list shows the devices that provide data. This may include a module inside the unit, or any external NMEA 2000 device.
Selecting a device in this list will bring up additional details and actions:
All devices allow allocation of an instance number in the configure option. Set unique instance numbers on any identical devices on the network to allow for the unit to distinguish between them. The data option shows all data being output by the device. Some devices will show additional options specific to the device.
Ú
Note: Setting the instance number on a 3rd party product is
typically not possible.
Diagnostics
The NMEA 2000 tab on the diagnostics page can provide information useful for identifying an issue with the network.
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Ú
Note: The following information may not always indicate an
issue that can be simply resolved with minor adjustment to network layout or connected devices and their activity on the network. However, Rx and Tx errors are most likely indicating issues with the physical network, which may be resolved by correcting termination, reducing backbone or drop lengths, or reducing the number of network nodes (devices).
Bus state
Simply indicates whether the bus is powered, but not necessarily connected to any data sources. However, if bus shows as ‘off’, but power is present along with an increasing error count, it is possible that termination or cable topology is incorrect.
Rx Overflows
The unit received too many messages for its buffer before the application could read them.
Rx Overruns
The unit contained too many messages for its buffer before the driver could read them.
Rx/Tx Errors
These two numbers increase when there are error messages, and decrease when messages are received successfully. These (unlike the other values) are not a cumulative count. Under normal operation these should be at 0. Values around 96 upwards indicate a heavily error prone network. If these numbers go too high for a given device, it will automatically drop off the bus.
Rx/Tx Messages
Shows actual traffic in and out of device.
Bus Load
A high value here indicates network is near full capacity. Some devices automatically adjust rate of transmission, if network traffic is heavy.
Fast Packet Errors
Cumulative counter of any fast packet error. This could be a missed frame, or a frame out of sequence etc. NMEA 2000 PGNs are made
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of up to 32 frames. The entire message will be discarded when a frame is missed.
Ú
Note: Rx and Tx Errors often indicate an issue with the physical
network, which may be resolved by correcting termination, reducing backbone or drop lengths, or reducing the number of network nodes (devices).
Network groups
The Network Group function is used to control parameter settings, either globally or in groups of units. The function is used on larger vessels where several units are connected to the network. By assigning several units to the same group, a parameter update on one unit will have the same effect on the rest of the group members.
Units
Provides setup of units of measure used on various data types.
Decimal places
Defines number of decimals used for speed and sea temperature.
Key beeps
Controls the loudness of the beep sound when a key is pressed. Default setting: Loud
Language
Controls the language used on this unit for panels, menus, and dialogs. Changing the language causes the unit to restart.
Time
Controls the local time zone offset, and the format of the time and date.
Display setup
Displays the Display setup dialog. The following options are available:
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Backlight level: Adjusts the backlight level from Min (10%) to Max
(100%) in 10% increments
-
When the Backlight level field is active, subsequent presses on the backlight key adjusts backlight level in decrements of 30%
Display group: Defines which network group the unit belongs to
Night mode: Activates/deactivates the night mode color palette
Night mode color: Sets the night mode color palette
Invert day color: Changes the background color for the pages
from default black to white
Sleep: Turns the backlight for screen and keys off to save power
Files
File management system. Used to browse the contents of the unit's internal memory and the content of a device plugged into the unit's USB port.
Simulate
Runs the display with simulated data. Use the simulator to become familiar with your unit before using it on the water.
When activated, the simulator mode is indicated on the display.
Restore defaults
Allows you to select which settings are to be restored to their original factory settings.
Global reset
Resets the source selection on all displays connected to the network.
About
Displays copyright information, software version, and technical information for this unit.
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Maintenance
Preventive maintenance
The unit does not contain any field serviceable components. Therefore, the operator is required to perform only a very limited amount of preventative maintenance.
It is recommended that you always fit the supplied protective sun cover when the unit is not in use.
Cleaning the display unit
A proper cleaning cloth should be used to clean the screen, where possible. Use plenty of water to dissolve and take away salt remains. Crystalized salt may scratch the coating if using a damp cloth. Apply minimal pressure to the screen.
Where marks on the screen cannot be removed by the cloth alone, use a 50/50 mixture of warm water and isopropyl alcohol to clean the screen. Avoid any contact with solvents (acetone, mineral turpentine, etc.), or ammonia based cleaning products, as they may damage the anti-glare layer or plastic bezel.
To prevent UV damage to the plastic bezel, it is recommended that the sun cover be fitted when the unit is not in use for an extended period.
Checking the connectors
The connectors should be checked by visual inspection only. Push the connector plugs into the connector. If the connector plugs
are equipped with a lock, ensure that it is in the correct position.
Software update
The AP44 includes a USB port of the back of the units. You use this port for software updates.
You can update the software for the AP44 unit itself and for NMEA 2000 sensors connected to the network from the AP44.
You can check the units software version from the About dialog.
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The software version for connected NMEA 2000 sensors is available in the Device list.
The latest software is available for download from our website: www.simrad-yachting.com.
Software update for the unit
1. Download the latest software from our website: www.simrad-
yachting.com, and save it to a USB device
2. Insert the USB device to the AP44 unit, and restart the AP44 unit
-
The upgrade will now start automatically the upgrade procedure for all units
3. Remove the USB device when the update is completed.
Warning: Do not remove the USB device until the
update is completed. Removing the USB device before the update is completed may damage the unit.
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Software update for remote devices
1. Download the latest software from our website: www.simrad-
yachting.com, and save it to a USB device
2. Insert the USB device to the AP44 unit
3. Start the File explorer, and select the update file on the USB
device
4. Start the update from the file details dialog
5. Remove the USB device when the update is completed.
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Menu flow chart
The system includes a Settings menu, accessed by pressing the MENU key. The Settings menu gives access to settings for the sensors, the vessel, the autopilot computer and for the system.
Level 1 Level 2
Calibration Boat speed...
Wind... Depth... Heading... Roll/Pitch... Environment... Rudder... Advanced...
Damping Heading
Aparent wind True wind Boat speed SOG COG Attitude Roll Attitude Pitch Tide
Trip log Trip 1...
Trip 2... Log...
Alarms Alarm history...
Alarm settings... Alarms enabled Siren Enabled
8
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Level 1 Level 2
Autopilot, NAC-2 and NAC-3
* Refer to the NAC-2/NAC-3 Commissioning manual (988-11233-00n)
Steering Sailing Turn patterns Installation *
Autopilot, AC12N, AC42N and SG05
** Refer to the AC12N/AC42N Installation manual (988-10276-00n)
Response Sea state filter Sailing Automatic steering Turn patterns Installation **
System Network
Units Decimal places Key beeps Language Time Display Setup... Files Simulate Restore defaults... Global reset... About
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Technical specifications
Dimensions Refer to "Dimensional drawing" on
page 51
Weight 0.32 kg (0.7 lbs) Power consumption(@ 13.5
V)
Backlight OFF 1.35 W (100 mA)
Backlight MAX 2.16 W (160 mA)
Network load 4 LEN Color Black Display
Size 4.1" (diagonal). 4:3 Aspect ratio
Type Transmissive TFT-LCD. White
LED backlight
Resolution 320 x 240 pixels
Illumination White for day mode. Red, green,
blue or white for night mode
Environmental protection
Waterproof rating IPx7
Humidity 100% RH
Temperature
Operating -25° to +65ºC (-13°F to +149 ºF)
Storage -40° to +85ºC (-40°F to +185 ºF)
9
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Dimensional drawing
118 mm (4.64")
115 mm (4.52")
8 mm (0.31")
36.5 mm (1.43")
28.5 mm (1.12")
97.5 mm (3.83")
48.5 mm (1.91")
STBY
MODE AUTO
MENU
X
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Terms and abbreviations
This list shows terms and abbreviations used in the pages and in dialogs in the AP44 system.
AIR TEMP Air temperature AIS Automatic Identification System AVG SPD Average speed AWA Apparent wind angle AWS Apparent wind speed BSPD Boat speed BTW Bearing to waypoint BWW Bearing Waypoint To Waypoint COG Course Over Ground CTS Course To Steer DGPS Differential Gps DTW Distance to next waypoint DSC Digital Selective Calling EPFS Electronic Position Fixing System EPIRB Emergency Position Indicating Radio Beacon ETA Estimated Time Of Arrival ETW Estimated time of arrival to next waypoint GLONASS Global Orbiting Navigation Satellite System GMDSS Global Maritime Distress And Safety System GNSS Global Navigation Satellite System GPS Global Positioning System HDG Heading Km Kilometer KN Knots LL DIST Layline distance LL TIME Layline time m Meters
11
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MAX SPD Maximum speed MIN Minimum MOB Man Over Board NM Nautical Mile OPP HDG Heading on opposite tack POS Position RM Relative Motion RNG Range ROT Rate Of Turn RTE Route SAR Search And Rescue SOG Speed Over Ground SPD Speed STBD Starboard STW Speed Through Water TCPA Time To Closest Point Of Approach TGT Target TIME LOC Local time TM True Motion TRK Track TRK CRS Track course to next waypoint TWA True wind angle TWD True wind direction TWS True wind speed WOL Wheel Over Line WOP Wheel Over Point WPT Waypoint name WPT BRG Bearing to waypoint WPT DIST Distance to waypoint XTE Cross track error
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Supported data
NMEA 2000 PGN (transmit)
59904 ISO Request 60928 ISO Address Claim 126208 ISO Command Group Function 126996 Product Info 127258 Magnetic Variation
NMEA 2000 PGN (receive)
59392 ISO Acknowledgement 59904 ISO Request 60928 ISO Address Claim 126208 ISO Command Group Function 126992 System Time 126996 Product Info 127237 Heading/Track Control 127245 Rudder 127250 Vessel Heading 127251 Rate of Turn 127257 Attitude 127258 Magnetic Variation 128259 Speed, Water referenced 128267 Water Depth 128275 Distance Log 129025 Position, Rapid Update 129026 COG & SOG, Rapid Update 129029 GNSS Position Data 129033 Time & Date
12
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129283 Cross Track Error 129284 Navigation Data 129539 GNSS DOPs 129283 Cross Track Error 129284 Navigation Data 130074 Route and WP Service - WP List - WP Name & Position 130306 Wind Data 130576 Small Craft Status 130577 Direction Data
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Index
A
Alarms
Type of messages
25
Autopilot
Dodging 17 Modes 13
D
Damping 33 Device list 41 Diagnostics 41
K
Key beeps 43
L
Language 43
M
Manual
About 4 Version 4
P
Preventive maintenance 45
S
Settings
Unit of measure 43
System Settings
Key beeps 43 Language 43 Time 43
T
Time 43
U
Units of measure, setting
43
W
Warranty 3
Page 60
*988-11189-002*
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