Simrad AP50 Autopilot Operator Manual

Operator manual
Simrad AP50
Autopilot
English
www.simrad-yachting.com
Sw.1.3
A brand by Navico - Leader in Marine Electronics
Simrad AP50 Autopilot
About this document
Rev. A
First issue.
Rev. B
Updated according to software revision V1R2. Minor corrections in text. RF14XU
added.
Rev. C
Updated according to software revision AP: 1.2.02 and J50: 1.2.02. CI300X
substituted by GI51. S100 substituted by JS10. Technical Specifications for RI9
and Panorama Mk2 indicators included.
Rev. D
The AP50 Instruction Manual was splitted into one Operator Manual and one
Installation Manual. Manuals updated according to software version 1.3.
S9 Steering Lever, QS50 Quick Stick and JD5X Distribution Unit included in the
System Description section. TI50 updated to TI51.
Rev. E
Minor corrections in text.
© 2007 Navico Egersund AS. All rights reserved.
No part of this work covered by the copyright here on may be reproduced or otherwise
copied without prior permission from Navico Egersund AS. The information contained
in this document is subject to change without prior notice.
Navico Egersund AS shall not be liable for errors contained herein, or for incidental or
consequential damages in connection with the furnishing, performance, or use of this
document.
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Operator Manual
Operator Manual
This manual is a reference guide for operating the Simrad
AP50 Autopilot. The manual applies for both a Standard
System and a Plus System.
Great care has been taken to simplify the set-up and
operation of the AP50; however, an autopilot is a complex
electronic system. It is affected by sea conditions, speed of
the vessel, and vessel hull shape and size.
Please take the time to read this manual to gain a thorough
understanding of the Simrad AP50 autopilot’s system
components and operation. For configuration and set-up,
please refer to the AP50 Installation Manual.
Caution !
An autopilot is a very useful navigational aid, but it DOES
NOT under any circumstance replace a human navigator.
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 autopilot is prohibited by law
When using an autopilot:
• Do not leave the helm unattended
• Do not place any magnetic material or equipment near
any 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
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iii
Simrad AP50 Autopilot
Contents
1
SYSTEM DESCRIPTION ....................................................................................1
1.1 Introduction ....................................................................................................1
1.2 How to Use This Manual................................................................................2
1.3 System Components .......................................................................................3
1.4 AP50 Control Unit..........................................................................................3
1.5 Junction Units .................................................................................................3
1.6 JD5X Distribution Unit ..................................................................................4
1.7 Rudder Feedback Units ..................................................................................4
RF300 Rudder Feedback Unit ........................................................................4
RF45X Rudder Feedback Unit .......................................................................4
RF14XU Rudder Feedback Unit ....................................................................4
1.8 Heading Sensors .............................................................................................4
RC25 Rate Compass .......................................................................................4
CD100A Course Detector and CDI35 Course Detector Interface..................5
General NMEA Compasses............................................................................5
HS52 GPS Heading Sensor ............................................................................5
Other Compass Models ..................................................................................5
GI51 Gyro Interface...................................................................................5
1.9 Optional Equipment........................................................................................5
AP51 Remote Control ....................................................................................5
R3000X Remote Control ................................................................................6
JS10 Joystick ..................................................................................................6
QS50 QuickStick ............................................................................................6
S35 NFU Steering Lever ................................................................................6
S9 NFU Steering Lever ..................................................................................6
FU50 Follow-Up Steering Lever ....................................................................7
TI51 Thruster Interface...................................................................................7
AD50 Analog Drive........................................................................................7
RI35 Mk2 Rudder Angle Indicator.................................................................7
RI9 Rudder Angle Indicator ...........................................................................8
NI300X NMEA Interface Unit .......................................................................8
2
OPERATION OF THE AUTOPILOT ................................................................9
2.1 Overview ........................................................................................................9
2.2 ON/OFF - Standby Mode (STBY) ...............................................................12
2.3 AP50 with MSD50 Stern Drive unit.............................................................14
Zero point setting..........................................................................................14
Operation ......................................................................................................14
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Operator Manual
2.4
2.5
2.6
2.7
2.8
2.9
2.10
2.11
2.12
2.13
2.14
2.15
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Follow-Up (FU) Steering..............................................................................15
Non-Follow-Up (NFU) Steering ..................................................................15
S9 (NFU) Steering Lever..............................................................................15
JS10 (NFU) Joystick.....................................................................................16
F1/2 (NFU) Push Button Remote Control....................................................16
R3000X Remote Control (NFU) ..................................................................16
S35 NFU Steering Lever ..............................................................................16
Automatic Steering .......................................................................................17
AUTO Mode.................................................................................................17
AUTO-WORK Mode ...................................................................................18
Thruster Steering ..........................................................................................19
Navigating with the AP50 ............................................................................20
Route Navigation..........................................................................................22
Setting the waypoint arrival circle................................................................22
Electronic Chart System (ECS) ....................................................................23
Selecting a Different Navigator ....................................................................24
NAV-WORK Mode......................................................................................24
Dodging ........................................................................................................25
Dodging in AUTO Mode..............................................................................25
Dodging in NAV Mode ................................................................................26
TURN Mode .................................................................................................27
U-turn............................................................................................................27
C-turn............................................................................................................27
Multiple Station System ...............................................................................28
Lock Function...............................................................................................28
Standard Operation .......................................................................................28
Master Operation ..........................................................................................29
External system selection .............................................................................30
User Set-up Menu .........................................................................................30
Alternating Course Knob Icon......................................................................30
STANDBY Mode .........................................................................................30
AUTO Mode.................................................................................................31
AUTO-WORK Mode ...................................................................................34
NAV Mode ...................................................................................................34
NAV-WORK Mode......................................................................................35
Instrument Screens and Menu ......................................................................37
Screen Selection ...........................................................................................39
Instrument Set-up. ........................................................................................39
v
Simrad AP50 Autopilot
3
MAINTENANCE .................................................................................................41
3.1 Control unit...................................................................................................41
3.2 Junction Unit.................................................................................................41
3.3 Rudder Feedback ..........................................................................................41
3.4 Compass (RC25)...........................................................................................41
3.5 Drive unit ......................................................................................................41
3.6 Exchange of software program.....................................................................42
4
TROUBLESHOOTING ......................................................................................45
4.1 Warnings.......................................................................................................45
5
GLOSSARY..........................................................................................................51
6
INDEX...................................................................................................................54
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System Description
1 SYSTEM DESCRIPTION
1.1 Introduction
Congratulations on the purchase of your new Simrad AP50
autopilot system and thank you for selecting what we feel is one
of the most advanced autopilot systems available on the market
today.
Today, Simrad manufactures a complete range of autopilots for
all types of vessels, from leisure boats to advanced steering
systems for merchant marine vessels. Our factory for these
products is located in Egersund on the southwest coast of
Norway. The company's involvement in autopilots began in
1953 with equipment for the North Sea fishing fleet under the
brand name Robertson. Professional mariners around the world
acknowledge that the Robertson and Simrad brand names are
synonymous with the absolute best in autopilot technology.
The brain in the AP50 autopilot system is an "intelligent"
junction unit or distribution unit that communicates with all
other system modules on a Robnet network. The Robnet has
been developed to establish a reliable digital communication and
power distribution network between the units in the system. The
Robnet simplifies installation and enables the AP50 system to be
easily expanded at any time. Any unit that is connected to the
autopilot system via Robnet is called a Robnet Unit.
The AP50 system is produced and tested in accordance with the
European Marine Equipment Directive 96/98. This means that
the AP50 complies with the highest level of tests for nonmilitary marine electronic navigation equipment existing today.
The Marine Equipment Directive 96/98/EC (MED), as amended
by 98/95/EC for ships flying EU or EFTA flags, applies to all
new ships, to existing ships not previously carrying such
equipment, and to ships having their equipment replaced.
This means that all system components covered by annex A1
must be type-approved accordingly and must carry the
Wheelmark, which is a symbol of conformity with the Marine
Equipment Directive.
While the AP50 may be installed on vessels not needing to
comply with the Marine Equipment Directive, those requiring
compliance must have one AP50 Control Unit set-up as a
“master unit” in order for the installation to be approved (see
also the AP50 Installation Manual, Master Operation).
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1
Simrad AP50 Autopilot
Simrad has no responsibility for the incorrect installation or use
of the AP50 autopilot, so it is essential for the person in charge
of the installation to be familiar with the relevant requirements
as well as with the contents of this manual, which covers correct
installation and use.
The purpose of the Marine Equipment Directive is to enhance
safety at sea and to prevent marine pollution through the
uniform application of the relevant international instruments
relating to equipment listed in Annex A1.
As there are many interfacing requirements in the
standards/codes, integrated systems and integrated certification
lead to more efficient and effective management of safety,
environmental, issues and quality.
The Marine Equipment Directive also constitutes a part of the
International Safety Management (ISM) Code. The ISM Code
was included as a new chapter (IX) of SOLAS in 1994, and is
mandatory for: passenger ships not later than 1st of July, 1998;
oil tankers; chemical tankers; gas carriers; bulk carriers and
cargo high speed craft of 500 gross tonnage and upwards not
later than 1st of July, 1998; and other cargo ships and mobile
offshore drilling units of 500 gross tonnage and upwards not
later than 1st of July, 2002.
It is required that both the shipping company and ships shall be
certified by the Administration (the government of the state
whose flag the ship is entitled to fly), by an organization
recognized by the Administration or by the government of the
country acting on behalf of the Administration.
1.2 How to Use This Manual
This manual is intended as a reference guide for operating the
Simrad AP50 autopilot and the optional auxiliary equipment.
Installation and configuration instructions are found in the
separate AP50 installation manuals P/N 20222469 (Standard
System) and P/N 20222410 (Plus System).
At the end of this manual, you will find an index and a glossary,
which will help you when studying the manual.
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System Description
1.3 System Components
A basic AP50 system may consist of the following units (refer to
Figure 1-1):
•
AP50 Control Unit with accessories
•
Heading Sensor
•
Rudder Feedback Unit with transmission link
•
Junction Unit
•
Drive Unit
The basic system can be expanded with remote control unit,
hand held remote and steering lever.
Figure 1-1 AP50 Basic system
1.4 AP50 Control Unit
This compact autopilot control for panel, bulkhead- or bracketmounting has a rotary course knob and a large LCD for readout
of autopilot data. It also has two Robnet connectors for system
interconnection and expansion.
1.5 Junction Units
The junction unit in the AP50 autopilot system contains the
steering computer, interface circuits to all system components,
and drive circuits for the drive unit motor and clutch. Two
models, J50 and J50-40, are available.
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3
Simrad AP50 Autopilot
1.6 JD5X Distribution Unit
The JD5X series distribution unit replaces the J50 Junction Unit
in an AP50 Autopilot Plus System.
The Plus System is made for steering gears with dual analog
control or direct operation of dual directional valves.
The JD5X units contain the steering computer and interface
circuits to all system components. Depending on model it
contains drive circuits for directional valves or analog steering
gears. The following models are available: JD50 (low DC
solenoid supply), JD51 (high DC solenoid supply), JD52 (AC
solenoid supply) and JD53 (analog output).
Refer to the AP50 Installation Manual P/N 20222410 (Plus
System).
1.7 Rudder Feedback Units
RF300 Rudder Feedback Unit
This rudder feedback unit with transmission link and 10 m (30
feet) of cable transforms the angular travel of the rudder to a
digital signal read by the autopilot steering computer. It is to be
used on small to medium size vessels.
RF45X Rudder Feedback Unit
This rudder feedback unit with T45 transmission link and 2 m (6
feet) of cable transforms the angular travel of the rudder to a
digital signal read by the autopilot steering computer. It is to be
used on medium to large size vessels.
RF14XU Rudder Feedback Unit
This unit can replace the RF45X Rudder Feedback Unit in
installations where a more rugged construction of the feedback
unit is preferred. Besides electronic circuitry to generate
feedback signals for the autopilot and rudder angle indicators it
has been provided with 2 sets of limit switches.
1.8 Heading Sensors
The AP50 autopilot system can be used with the following
combinations of heading sensors:
RC25 Rate Compass
The fluxgate compass with an integrated rate of turn sensor
provides a dramatic improvement to the dynamic performance of
both the autopilot and any stabilized radar display.
4
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System Description
CD100A Course Detector and CDI35
Course Detector Interface
The sensor and interface unit connects the AP50 system to a
magnetic compass. The AP50 provides excitation current for
CD100A and converts the analog sine/cosine signal to digital
two-wire format for the autopilot steering computer.
General NMEA Compasses
Any compass outputting a NMEA 0183 message with either
HDT, HDG, or HDM sentence can be connected directly to the
J50/J50-40 junction units or to the NI300X NMEA Interface. An
output of 10 Hz is recommended.
HS52 GPS Heading Sensor
The Simrad HS52 is a GPS compass that displays true heading
output with position, velocity, and rate-of-turn information. This
product replaces several vessel instruments in one compact
package (gyrocompass, GPS system, and speed input).
The HS52 comprises three components: the sensor unit, the
interface unit, and the display unit.
The sensor unit contains two GPS sensors and an inertial
element. This unit is to be mounted on the vessel mast. The
interface unit contains the main CPU and serial interface with
high-speed communication. The display unit contains a LCD for
navigation information and buttons for user control and
command. The interface unit and the display unit may be
mounted on the bridge. Refer to the HS52 manual.
Other Compass Models
GI51 Gyro Interface
This interface unit connects the geared synchro and stepper
gyrocompass and the 200p/NM speed log to the AP50 system.
Utilize the repeater signal output from the gyrocompass and the
pulse output from the speed log to generate a speed and heading
signal on NMEA format. GI51 is easily connected via Robnet.
1.9 Optional Equipment
A series of options are available for the AP50 system.
AP51 Remote Control
This portable remote control unit for AP50 with 7 m (23 ft.) of
cable can be used as a hand-held remote control or can be
mounted in a fixed bracket-mount.
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5
Simrad AP50 Autopilot
The JP21 Jack Point can be used for simple connection/
disconnection of the AP51 at different locations on the vessel.
Refer to the AP51 manual.
R3000X Remote Control
This small hand-held remote control has two buttons for power
steering and course selection (port and starboard) and one button
with a built-in lighted indicator for (limited) mode selection.
JS10 Joystick
The JS10 Joystick is a Non-Follow-Up steering lever designed for
indoor and outdoor console mount. It has a spring-loaded returnto-mid-position feature and is equipped with 10 m (33’) of cable
and installation hardware.
QS50 QuickStick
The QS50 Quick Stick is a 2 axis joystick for arm rest and
desktop mounting and is interfaced to the autopilot via Robnet.
Mode change is made directly with the joystick and by means of
push buttons thruster and WORK mode can be toggled On/Off.
NFU power steering is provided with an automatic center rudder
function.
Refer to the QS50 manual.
S35 NFU Steering Lever
The S35 is designed for indoor and outdoor bulkhead-mounting
and is made of shock resistant polyxymethylene. The lever has a
spring loaded return-to-mid-position feature. Its push button
with light indicator is used for (limited) mode selection when
connected to an autopilot junction unit.
S9 NFU Steering Lever
The S9 is a splash proof steering lever for bulkhead or console
mounting. The housing is made of machined aluminum. The
internal mechanism of the S9 permits locking of the lever in the
mid-position to avoid inadvertent operation. When the S9 handle
is pulled out, the autopilot will be disengaged. When connected
to the AP50, the S9 can also be wired for direct NFU override
steering.
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System Description
FU50 Follow-Up Steering Lever
The FU50 Follow-up steering lever features a dial (scale) with
5° rudder angle markings. The rudder will move and stop at the
angle selected on the dial. The FU50 has a mid-position indent,
buttons for (limited) mode selection, and mode indicators
(STBY, FU, AUTO, NAV, WORK, and THRUSTER). It is
designed for indoor and outdoor bulkhead- or panel-mounting.
Refer to the FU50 manual.
TI51 Thruster Interface
The TI51 Thruster Interface is designed to offer control of a
single thruster from an AP50 system. Operation of on/off
solenoids, continuous control (voltage or current), proportional
directional control and control of a Sauer Danfoss PVEM valve
is provided. The thruster output signal is calculated in the TI51
based on operational mode and heading information received
over Robnet from other system units. Set-up from the control
unit and errors in the thruster interface are communicated via the
Robnet. All thruster settings in the AP50 Control Unit are stored
in the thruster interface unit.
Refer to the TI51 manual.
AD50 Analog Drive
The AD50 Analog Drive is designed to provide a control signal
for operating an analog rudder in an AP50 system by either
analog or proportional ±10V control, or Danfoss PVEM valve.
The analog rudder output signal is calculated in the AD50 based
on operational mode and heading information received over
Robnet from other system units. Set-up from the control unit and
errors in the analog rudder interface are to be communicated via
Robnet. All settings are stored in the analog rudder interface
unit.
Refer to the AD50 manual.
RI35 Mk2 Rudder Angle Indicator
The RI35 Mk2 is manufactured in non-corrosive aluminum with a
non-reflective black finish.
The instrument gives a continuous reading of the rudder position
up to 45 degrees to each side of midship position. A front panel
key is used for rudder zero-adjustment, deflection reversal, and
illumination adjustment.
The splash-proof construction allows panel-, bulkhead-, or
bracket-mounting in exposed locations, such as the bridge wings,
the wheel house, and the engine room.
Refer to the RI35 Mk2 manual.
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7
Simrad AP50 Autopilot
RI9 Rudder Angle Indicator
The RI9 is manufactured in non-corrosive aluminium with a nonreflective black finish. The indicator is made in standard modular
size (144x144 mm).
It is designed to operate from both voltage and current signals.
The instrument gives a continuous reading of the rudder angle up
to 45 degrees on either side of the midship’s position. (60, 70 or
90° as option).
The water tight construction allows bulkhead or desk mounting in
exposed locations, such as bridge wings as well as wheelhouse
and engine room.
NI300X NMEA Interface Unit
This interface unit with 4 NMEA In/Out ports for
communication with other systems and a selectable heading
output for radars (Anritsu or Furuno), includes two Robnet
connectors for the AP50 system.
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Operation
2 OPERATION OF THE AUTOPILOT
Caution !
An autopilot is a very useful navigational aid, but it DOES
NOT under any circumstance replace a human navigator.
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 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
2.1 Overview
SIMRAD
STBY
CTS
A UTO 329
AUTO
Inactive
340.7
RUDDER
04
Gyro1
SIMRAD AP50
NAV
SETUP
WORK
INFO
DODGE
TURN
Figure 2-1 AP50 Front Panel
Buttons
STBY
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Action
Function
Short press:
Switches the system on. Selects STANDBY mode.
Long press (3 sec.):
Switches the system off.
Quick double press:
Locks or unlocks other control units and levers in
the system.
9
Simrad AP50 Autopilot
Buttons
Action
Single short press:
Selects AUTO mode and sets the heading
reference.
Second short press
Sets new heading reference (Heading catch)
Short press:
Selects NAV mode prompt screen from AUTO
mode.
AUTO
Verifies new course to steer when alert screen is
shown (can also use the course knob, see below).
NAV
S ETUP
WORK
Function
Quick double press:
Selects User Set-up menu for selected mode.
Long press (5 sec.):
Selects Installation menu.
Short press:
Selects AUTO-WORK mode when in STANDBY
mode.
Selects/deselects AUTO-WORK mode when in
AUTO mode.
Selects/deselects NAV-WORK mode when in
NAV mode.
INFO
DODGE
TURN
10
Short press:
Selects Instrument screens.
Long press (5 sec.):
Selects units to be displayed.
Quick double press:
Selects Instrument screens to be shown.
Short press:
Activates Dodging.
Long press (3 sec.):
Activates U-turn.
Second long press:
Activates C-turn.
Press in STANDBY
mode:
Rudder moves to port while button is pressed.
Press in AUTO
mode:
Adjusts course to port (1°, 5°, or 10°).
Press in User Set-up
or Installation
menus:
Reverts to previous menu item.
Press in STANDBY
mode:
Rudder moves to stbd. while button is pressed.
Press in AUTO
mode:
Adjusts course to starboard (1°, 5°, or 10°).
Press in User Set-up
or Installation
menus:
Proceeds to next menu item.
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Operation
Buttons
Course
knob
Action
Function
Press simultaneously
Activates Follow-up steering mode.
Rotate in Follow-up
steering mode:
Sets commanded rudder angle.
Rotate in AUTO
mode:
Counter clock-wise = Port course change
Clock-wise = Starboard course change
Rotate in NAV
mode:
Verifies new course to steer when alert screen is
shown.
Rotate in DODGE
mode:
Presets heading
Rotate in User Set-up Adjusts or confirms reading.
or Installation
menus:
Screen Symbol
Description
Rotate course knob
Press
04
02
(PORT) or
(STBD) button
Rudder angle 4° to starboard
(Rudder command when analog rudder)
Rudder angle 2° to port
(Rudder command when analog rudder)
Rudder command to starboard
Rudder command to port
Thruster connected to autopilot system
Control unit inactive or disengaged
Control unit locked
Key symbol alternates with mode index on
unlocked master unit
No course changes can be made unless you
press the
(AUTO) button
AUTO
Cross track error to starboard
Boat turning to starboard
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11
Simrad AP50 Autopilot
The control unit shown in Figure 2-1 on page 9 can operate as a
stand-alone unit in an autopilot system or it can be combined in
a multistation system. In a multistation system, command can
easily be transferred from one unit to another and units not in
control will display "Inactive".
The autopilot system may also be disabled from the ships’
steering system with an external switch. This will totally
disengage the autopilot system from the ships’ main/emergency
steering system and the units will display “DISENGAGED”.
The AP50 system is capable of the following primary steering
modes with each mode having a dedicated push button:
STANDBY (Follow-up and Non-Follow-up), AUTO, NAV and
DODGE. AUTO and NAV modes also have a sub-mode that is
accessed by pressing the WORK button. The AUTO-WORK
and NAV-WORK sub-modes are used under operational
conditions different from those normally found when a vessel is
in transit on a preset course (e.g. trawling, towing, trolling on
one engine, slow speed, using a thruster, etc.).
Each of the mode buttons is clearly identified with the primary
function in large text and a secondary function listed in smaller
text. Each button provides you with the ability to access a
primary display, a secondary display, and/or multiple function
displays.
A group of user-adjustable settings belonging to the selected
mode are provided in the AP50 User Set-up Menu (see page 29).
The settings allow adjustment of display visibility, selection of
heading sensor, navigation and position sources, and the ability
to select between automatically or manually adjustable sea state
filter.
Alarms are presented in plain text to alert you to both system
and external data failure conditions. Alarms include both audible
and visual presentations. The alarms are listed on page 45.
2.2 ON/OFF - Standby Mode (STBY)
STBY
A single press on the
(STBY) button switches the system
ON and the following status displays are shown:
Simrad
AP50
SW 1.3.00
HW rev. 0
Autopilot model
Software version (1), release (3), minor change (00)
Hardware revision
12
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Operation
Junction unit model
Simrad
Software version (1), release (3), minor change (00)
J50
SW 1.3.00
P05 M00 S000
Power board revision, Main board revision and Self check
(SW and HW revisions shown are examples only)
After approximately 5 seconds, the system is operative and the
unit that was turned on will show the STANDBY mode
display. Other units in a multistation system will display
"Inactive". Control can be transferred to any single unit by
pressing any of its’ mode buttons (except in a Wheelmark
system; see the Introduction on page 1).
STBY
(STBY) button switches the
A long press (3 sec.) on the
system off and during this time, the alarm will sound.
Note !
In an emergency, it is possible, on a multistation system, to turn
OFF the system at any control unit by pressing the
(STBY)
button for 3 seconds (except in a Wheelmark system).
STBY
STANDBY mode is used when steering the boat at the helm.
STBY 340.7
Display information:
•
Standby mode
RUDDER
•
Current heading from gyro 1: 340.7°
02
•
Rudder angle: 2° to starboard. When there is no rudder
feedback signal (analog rudder drive) the rudder readout
shows – –).
Gyro1
ADJUST COMPASS INPUT?
Adjust:
OK? Press
or
Gyro2
Heading 018°
Offset +018°
RUDDER
02
Stepper or Synchro
gyro
STBY 340.7
Gyro1
RUDDER
-Analog rudder
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If a stepper or synchro gyro is connected to the autopilot system
via the GI51 Gyro Interface, a display for the heading
adjustment is presented at Power On or at change of compass in
the User Set-up menu. Use the course knob to align the autopilot
read-out to correspond with the gyro heading. Check the
alignment every time the autopilot/gyro is switched on. If two
stepper gyros are connected, both will simultaneously be
aligned. A stepper gyro used as monitor compass will
automatically be aligned to the steering compass.
(PORT) or
Press the
Standby mode.
(STBD) button to proceed to
If the inactive symbol
is shown (when powered up from
FU50 or while Disengaged) the Control unit must be activated
before alignment by pressing the STBY button.
13
Simrad AP50 Autopilot
2.3 AP50 with MSD50 Stern Drive unit
Note !
The information in section 2.3 only applies if your autopilot is
driving a Simrad MSD50 Stern Drive.
The MSD50 Stern drive unit has a relative feedback signal which
needs a zero point setting after the autopilot has been turned on.
Refer to the MSD50 manual for further information.
Zero point setting
Note !
If you do not need a rudder angle display when leaving the dock,
just steer the boat manually on a straight course and press the
AUTO button. The zero point is then set automatically.
STBY 340.7
Gyro1
RUDDER
10
If you prefer to use the rudder angle display when leaving the
dock, proceed as follows:
After turn on the rudder angle display will alternate between 10
degrees port and starboard to indicate that the "rudder" zero point
need be set.
Use the wheel to bring the "rudder" to midship position. Turn the
wheel from lock to lock (H.O. to H.O.) and count the exact
number of turns. Then start from one lock position and turn the
half number of turns.
STBY 340.7
Gyro1
Press the AUTO button and then the STBY button. The zero point
is now set and the following display is shown.
RUDDER
00
Operation
Follow the operating instructions on the following pages. There is
no further need for zero point settings until next time you turn the
autopilot on.
14
20221032 / E
Operation
2.4 Follow-Up (FU) Steering
When both the
(PORT) and
(STBD) buttons are pressed
simultaneously, the AP50 will enter Follow-Up steering mode
and the course knob may be used to set rudder commands. One
revolution of the knob equals a 45° rudder change. The rudder
will move to the selected angle and stop.
P
FU
340.7
Display information:
•
Follow-Up mode
RUDDER
•
Commanded rudder angle: 3° to starboard
02
•
Rudder angle: 2°
•
The small starboard arrow shows that the rudder is moving.
S
Gyro1
03
Use the course knob to select the rudder angle.
P
S
Return to manual control in Standby mode by pressing the
(STBY) button.
STBY
STBY
While in Follow-Up mode, you cannot take manual control
of the vessel unless you use the External Mode Selector.
2.5 Non-Follow-Up (NFU) Steering
NFU 340.7
Gyro1
RUDDER
02
Note !
In STANDBY mode, the NFU display is presented when either
the
(PORT) or
(STBD) button is pressed. The rudder
will move as long as the button is pressed and the actual rudder
angle is shown on the display. The small arrow shows that the
rudder is moving.
When a NFU steering lever or remote control is operated, the
control unit(s) become "Inactive".
For safety reasons NFU steering is not possible when an analog
rudder control is provided via an AD50 Analog Drive
S9 (NFU) Steering Lever
The S9 Steering Lever has a “Starboard-Port” rudder command
movement and an “In-Out” movement. When pulled out,
starboard and port rudder commands are enabled. When pushed
in, the lever becomes locked in the center position.
When wired accordingly, the S9 can also perform mode changes
and operate as a priority control.
Observe the autopilot display when operating the S9.
20221032 / E
15
Simrad AP50 Autopilot
JS10 (NFU) Joystick
In STANDBY mode, the rudder will move as long as the lever is
offset to Port or Starboard.
F1/2 (NFU) Push Button Remote Control
In STANDBY mode, the rudder will move as long as the Port or
Stbd button is pressed.
R3000X Remote Control (NFU)
SIMRAD
Push buttons for Port and
Stbd NFU commands
STBY-AUTO
STBY/AUTO mode button.
AUTO or NAV mode is
when lamp is lit
In STANDBY mode, the rudder will
move as long as the Port or Stbd button
is pressed.
In AUTO mode the set course will
change 1° each time the button is
pressed. Changing set course is
indicated by beeps on the AP50 Control
Unit.
Note!
If you keep the button pressed, it will
automatically change the course in
increments of 3° per second.
Simrad R3000X
Pressing the mode button returns the
autopilot to the initial mode, except
when in NAV mode:
AUTO → STBY → AUTO
AUTO-WORK → STBY → AUTO-WORK
NAV → STBY →AUTO
NAV-WORK → STBY → AUTO-WORK
Note !
NAV mode can only be entered from a control unit or AP51
Remote Control Unit.
S35 NFU Steering Lever
STANDBY:
The rudder will move as long as the lever is offset to Port or
Starboard (Non-follow-up steering).
AUTO/AUTO-WORK: The set course will be changed by 3° per second when the lever
is offset to Port or Starboard or 1° for single activation.
Changing set course is indicated by beeps on the AP50 Control
Unit.
The mode button remains lit as long as the autopilot is in AUTO
or AUTO-WORK mode (and NAV mode).
16
20221032 / E
Operation
The mode change sequence is as follows:
AUTO
STBY
AUTO
AUTO-WORK
STBY
AUTO-WORK
Pressing the mode button returns the autopilot to the initial
mode at the present course.
NAV/NAV-WORK:
Note !
It is not possible to change the set course by the lever. Pressing
the mode button brings the autopilot to STANDBY mode, but
the next press brings it to AUTO mode, not back to NAV mode.
NAV
STBY
AUTO
NAV-WORK
STBY
AUTO-WORK
NAV-WORK mode can only be entered from a control unit or
AP51 Remote Control Unit.
2.6 Automatic Steering
AUTO Mode
AUTO
AUTO mode is used to make the AP50 steer the vessel
automatically on a set heading. AUTO mode is always available
from any mode or function within the AP50 by a single push of
the AUTO button. When AUTO mode is selected, the AP50
automatically selects the current vessel heading as the set
heading and the rudder will move to midship position.
The W Init rudder setting has no effect.
In AUTO, the AP50 issues rudder commands to keep the boat
on the set heading. The boat heading is provided by the steering
compass.
The AP50 will keep the boat on the set heading until a new
mode is selected or a new heading is set with either the course
knob, the
(PORT) or
(STBD) buttons, or by pushing the
AUTO button again. One revolution of the knob equals a 45°
course change.
Once the course is changed to a new set heading, the boat will
automatically turn to the new heading and continue to steer
straight.
20221032 / E
17
Simrad AP50 Autopilot
A329
340.7
Gyro1
RUDDER
02
Display information:
• Automatic steering mode
• Set heading: 329°
• Boat heading from gyro compass: 340.7°
• Rudder angle: 2° to port and still moving
Rotate the course knob to change the course:
Clock-wise = Starboard course change
Counter Clock-wise = Port course change
Press the PORT or STBD button to adjust the course by 1°. It is
possible to set the buttons to adjust the course by 5° or 10° per
press (Refer to the Installation Manual, Installation
Menu/Settings/Course adjust).
AUTO
Press the AUTO button to select current vessel heading as set
heading.
STBY
Press the STBY button to regain manual steering
AUTO-WORK Mode
The AUTO-WORK mode is an automatic steering mode to be
used under operational conditions different from those normally
found when a vessel is in transit on a pre-set course. Examples
are trawling, towing, trolling on one engine, slow speed etc.
WORK
In such situations, some boats may need different settings. By
pressing the WORK button, a separate set of steering and turning
values will be used. It can also be set how the rudder should
move when entering AUTO-WORK from STANDBY or
DODGE.
If W Init Rudder “Actual” is selected (Refer to the Installation
Manual, Installation Menu/Settings/W Init Rudder), the rudder
offset is maintained and becomes the Trim value (bumpless
transfer).
If W Init Rudder “Midship” is selected, the rudder will move to
midship (0°).
When selecting WORK from any automatic mode and when
changing between heading and route steering, the rudder offset is
always maintained.
To manually change the Trim or other WORK settings, quickly
double press the
(NAV/SETUP) button (see AUTO-WORK
mode in the User Set-up menu on page 34).
NAV
SETUP
If Thruster is selected under the Steering function in the User
Set-up Menu, the thruster will be used when selecting WORK
mode.
18
20221032 / E
Operation
A
S345
w
340.7
Gyro1
RUDDER
04
Display information:
• AUTO-WORK mode
• Set heading: 329°
• Boat heading from gyro compass: 340.7°
• Rudder offset of 4° to port becomes the Trim value
If you prefer to have complete manual control of the rudder trim
in AUTO-WORK mode, the Autotrim can be permanently
disabled in the Installation Settings menu (Refer to the
Installation Manual, Installation Menu/Settings/Autotrim).
Caution !
The Off Heading alarm is permanently disabled in AUTOWORK mode.
Note !
Pair-trawling requires manual trim only, and the autotrim
should be permanently disabled at the Installation Settings
menu.
2.7 Thruster Steering
If the vessel is equipped with a thruster, it can be connected to
the AP50 system and the vessel can then be controlled by
rudder, thruster, or both rudder and thruster.
After connecting a thruster to the autopilot system (see the TI51
manual) the thruster type must be selected under the Installation
Dockside menu (ref. AP50 Installation Manual).
A thruster icon below the mode index indicates that a thruster is
connected to the system.
Now you can select one of three control functions from the User
Set-up Menu:
• Rudder: The rudder is used to maintain the heading (always
in AUTO mode and NAV mode).
• Thruster: The thruster is used to maintain the heading (only
in AUTO-WORK, NAV-WORK, Follow-up, and NonFollow-up steering modes).
• Rudder and Thruster: Both rudder and thruster are used to
maintain the heading (only in AUTO-WORK mode, NAVWORK mode, Follow-up and Non-Follow-up steering
modes).
Examples of display pictures:
20221032 / E
19
Simrad AP50 Autopilot
STANDBY
mode
STBY 340.7
S TBY 340.7
Gyro1
(Follow-up
and Nonfollow up
steering
modes)
AUTOWORK
mode
STBY 340.7
Gyro1
Gyro1
RUDDER
02
02
02
Heading to be
Heading to be maintained Heading to be maintained
maintained by rudder
by rudder and thruster
by thruster
Aw
271
263.7
Gyro1
RUDDER
02
Aw
271
Aw
271
263.7
263.7
Gyro1
Gyro1
02
02
Heading maintained
by rudder
Caution !
Heading maintained by
thruster
Heading maintained by
rudder and thruster
When operating an On/Off thruster it is important to note that
most electrical thrusters have a built in thermal cut-off switch
that will shut off the electromotor if it is overheating and reengage it when it has cooled down. The water temperature also
affects the running time. The On/Off thruster may only run for
a few minutes, and its total running time for a longer period
should be limited by increasing the thruster sensitivity value
(Refer to the Installation Manual, Installation Menu/Settings/
Thruster/Thruster Sens).
2.8 Navigating with the AP50
The AP50 has the capability to use steering information from an
external navigator (GPS/Chart plotter or ECS) to direct the boat
to one specific waypoint location or through a series of
waypoints. In the NAV mode, the AP50 uses the heading sensor
as its heading source for course keeping. The steering and speed
information received from the external navigator alters the set
course to direct the AP50 to the destination waypoint.
Note !
Navigational steering must only be used in open waters. By
selecting the NAV mode, the AP50 is set for automatic steering
on the current set course to a destination waypoint.
To obtain satisfactory navigation steering, the following
conditions must be fulfilled prior to entering the NAV mode:
• The AP50 autosteering must be tested and determined
satisfactory
20
20221032 / E
Operation
• The navigation receiver must be operating and the navigation
system (GPS/Chart plotter or ECS) must be in full operating
mode with adequate signal characteristics for valid position
and steering data
• At least one waypoint must be entered and selected as the
current waypoint in the navigation receiver
• The navigation source in the AP50 User Set-up menu must be
set for the navigator that contains the current waypoint
The AP50 is designed to steer in mixed mode operation. This
combines the straight steering capability of Cross Track Error
(XTE) steering in conjunction with the turning capability of
bearing mode steering (Course To Steer [CTS]).
NAV
SETUP
WP:
BWW :
Chg :
SIMRAD
270°
70°
OK? Press NAV
RUDDER
340.7
01
Gyro1
NAV
340°
CTS
GPS1
XTE
Gyro1
The upper half of the prompt display shows the name of the next
waypoint (WP), the bearing to the waypoint (BWW), and the
required course change (Chg) with the direction in which the
vessel will turn.
The lower left portion shows the compass heading and the lower
right portion shows the rudder angle and port direction.
SETUP
340.7
Press the NAV button to activate the NAV prompt display.
.000 NM
NEXT WP
SIMRAD
BPW
DST
340 °T
25 NM
Press NAV to accept the first waypoint as the location to steer
towards. The autopilot turns the boat onto the new course.
Display information:
•
•
•
•
Note !
20221032 / E
NAV mode
Course To Steer (CTS): 340° is set internally in the autopilot
to steer the boat along the track
Nav source: GPS1. The boat is located on the track
Cross Track Error (XTE): 0.000 nautical mile
For Cross Track Error, the number of decimals shown
depends on the output from the chart plotter. Three decimals
give a more precise steering than two. Four decimals from
chart plotter are shown as three decimals on the display.
•
•
•
Compass heading from Gyro1: 340.7°
Next waypoint: Simrad
Bearing from the current position to the next waypoint
(BPW): 340°
•
Distance to this waypoint: 25 nautical miles
21
Simrad AP50 Autopilot
Route Navigation
When operating the AP50 in NAV mode to automatically steer
through a route of waypoints, the AP50 will steer to the first
waypoint in the route after you accept the first waypoint as the
location to steer towards.
WP:
BWW
Chg.
WP2
100°
035°
OK? press NAV
NEXT WP
WP2
135.7
Gyro1
BPW
DST
102 °T
02.2 NM
NAV
SETUP
If you use a GPS/Chart plotter, the AP50 will, when you arrive at
the waypoint arrival circle, output an audible alarm and display
an alert screen with the proposed new course information. If the
required course change is more than 10°, you will need to verify
that the upcoming course change is acceptable.
Verification is performed by pressing the NAV button or turning
the course knob after the alert screen is displayed. If an external
alarm unit (optional) is connected to the AP50 system, an alarm
is given after 5 seconds. If no verification is received, the AP50
will continue on the current set course in NAV mode.
Regain manual steering at any time by pressing the
button.
STBY
(STBY)
If “END ROUTE” is used as final WP-name, an “End of route”
warning will be given on the active control unit when arriving at
the final WP.
Note !
If the AP50 is connected to a navigation receiver that does not
transmit a message with the bearing to the next waypoint, it will
pick a Cross Track Error message and steer on Cross Track
Error only. In that case you have to revert to AUTO mode at
each waypoint and manually change the set course to equal the
bearing to the next waypoint and then select NAV mode again.
Setting the waypoint arrival circle
For route navigation it is recommended to use automatic
waypoint shift/change at a set waypoint arrival circle.
The arrival circle should be adjusted according to boat speed.
The higher speed, the wider circle. The intention is to make the
autopilot start the heading change in due time to make a smooth
turn onto the next leg.
Origin
The new heading is accepted
automatically after the
NAV/SETUP button is pressed
BP W
WP1
Waypoint arrival circle
(determined by the navigator)
22
BWW
WP2
20221032 / E
Operation
The figure below may be used to select the appropriate waypoint
circle on the GPS/chartplotter.
Example: With the speed of 20 knots you should use a waypoint
circle with radius 0.09 NM.
Note !
The distance between any waypoints in a route must not be
smaller than the radius of the waypoint arrival circle when
using automatic waypoint shift.
Electronic Chart System (ECS)
An ECS has to be selected as NAV source.
NAV
SETUP
Press the NAV button to activate the NAV prompt display.
WP:
SIMRAD
BWW :
Chg :
270°
70°
Auto WP shift OK? Press NAV
RUDDER
340.7
01
Gyro1
The lower left portion shows the compass heading and the lower
right portion shows the rudder angle and direction.
NAV
SETUP
N
ECS1
020°
Chg
TURNING
340.7
Gyro1
The upper half of the prompt display shows the name of the next
waypoint (WP), the bearing to the waypoint (BWW), and the
required course change (Chg) with the direction in which the
vessel will turn.
NEXT WP
SIMRAD
BPW
DST
270 °T
25 NM
Press NAV to accept the first waypoint as the location to steer
towards. The autopilot turns the boat onto the new course while
the display flashes “TURNING”.
Accepting the first waypoint as the location to steer towards you
also accept the autopilot to automatically steer the boat through
the route of waypoints. When the autopilot changes the course at
each waypoint, the display flashes “TURNING”.
If you wish to confirm the new heading at each waypoint, GPS
has to be selected as NAV source.
A route consists of a series of waypoints joined together with
straight legs. Each waypoint in a route, except the first and the
last, has an associated turn radius defined. This turn radius will
allow the ship to turn before the waypoint is reached.
20221032 / E
23
Simrad AP50 Autopilot
Caution !
If an ECS is selected as a navigator, the course change
verification is waved. This is done so the AP50 is capable of
following a route in which the radius of the course change is
pre-set in the chart system. Users navigating in this mode must
use extra caution.
Selecting a Different Navigator
If you have more than one navigation source connected to the
AP50, you may choose any for navigation. Refer to the User Setup menu in Standby mode for details on selecting a different
navigator (see page 30).
NAV-WORK Mode
Like the AUTO-WORK mode the NAV-WORK mode is an
automatic steering mode to be used under special steering
conditions (Refer to AUTO-WORK mode).
When the boat is on a track line in AUTO-WORK mode, and the
NAV button is pressed, the boat is steered in Navigation mode
and the Work parameters are maintained (Trim etc.).
NAV
SETUP
A corresponding display is shown:
Nw
Gyro1
24
Display information:
.023 NM
•
NAV-WORK mode
NEXT WP
SIMRAD
•
Course to steer (CTS): 280° is set internally in the autopilot
to steer the boat on to the track. This course is calculated by
the autopilot to provide a suitable approach to the track. It is
also affected by settings made at the sea trial (Refer to the
Installation Manual, Installation Menu/Settings/ Init NAV)
•
Navigation source: GPS1. The boat is located on the
starboard side of the track
•
Cross track error (XTE): 0.023 nautical mile
•
Compass heading from Gyro1: 340.7°
XTE
340.7
280°
CTS
GPS1
BPW
DST
280 °T
25 NM
20221032 / E
Operation
•
Next waypoint (Next WP): Simrad
•
Bearing from current position to next waypoint (BPW): 280°
(True)
•
Distance to waypoint (DST): 25 nautical miles
If you prefer to have complete manual control of the rudder trim
in NAV-WORK mode, the autotrim can be permanently
disabled in the Installation Settings menu (Refer to the
Installation Manual, Installation Menu/Settings/Autotrim).
Caution !
The Off Heading alarm is permanently disabled in NAVWORK mode.
2.9 Dodging
Dodging in AUTO Mode
The AP50 provides the capability for dodging.
Dodging is useful in situations when you need to quickly take
control of the helm to steer around an obstruction and then wish
to return on the previous set heading after performing the
evasive maneuver. A quick press on the (DODGE/TURN)
button activates dodging.
DODGE
TUR N
DODGE
T URN
A329
DODGE
RUDDER
340.7
Gyro1
02
When in DODGE mode, the set course is displayed (for
example, as A329 degrees) and this set course is remembered by
the AP50. When DODGE is flashing on the display, the AP50 is
no longer in control of the steering and you must either steer the
boat manually or take control using Non-Follow-Up steering or
Follow-Up steering. The current heading will be shown in the
lower left part of the display (for example, as 340.7 from
Gyro1). On manual steering, the clutch (or bypass valve) in the
drive unit will be disengaged when dodging. The AP50 will
remain in the DODGE mode until you exit DODGE by a second
press on the
(DODGE/TURN) button or until you select
another mode.
DODG E
T URN
Perform dodging as follows:
1. Press
DODG E
TUR N
(DODGE/TURN) button quickly
2. Manually steer the
vessel by wheel:
or
Non-Follow-Up:
or
20221032 / E
or
or NFU steering lever.
25
Simrad AP50 Autopilot
Follow Up: Both
and course knob.
To preset a new Course, rotate course knob (Not possible in
Follow Up.
To return from DODGE mode, press one of the following:
DODGE
T URN
AUTO
Note !
Selects AUTO mode with the last set or new preset course.
Selects AUTO mode with the current heading as the set course.
If using Non-Follow-up or Follow-up steering modes while
dodging, “NFU” or “FU” flash.
Dodging in NAV Mode
DODGE
T URN
350°
N
GPS1
DODGE
XTE
340.7
Gyro1
CTS
.023 NM
NEXT WP
SIMRAD
BPW
DST
225 °M
25 NM
A quick press on the
dodging.
DODGE
TUR N
(DODGE/TURN) button activates
When in DODGE mode, the course displayed as Course To
Steer (CTS) is the boat’s recommended heading. However, the
previous set course is stored by the AP50. When DODGE is
flashing on the display, the AP50 is no longer in control of the
steering and you must either steer the boat manually or take
control using either Non-Follow-up steering or Follow-up
steering. On manual steering, the clutch (or bypass valve) in the
drive unit will be disengaged when dodging. The AP50 will
remain in the DODGE mode until you exit DODGE by a second
(DODGE/TURN) button or until you select
press on the
another mode.
DODGE
T UR N
Perform dodging as follows:
1. Press
(DODGE/TURN) button quickly
2. Manually steer the
vessel by wheel:
or
DODG E
TURN
Non-Follow-up:
or
or
or NFU steering lever.
Follow-up: Both
and course knob.
To return from DODGE mode press one of the following:
DODGE
T URN
AUTO
NAV
SETUP
26
Returns to NAV mode at the current track.
(May result in a drastic course change).
Selects AUTO mode with the current heading as the set course.
Selects NAV mode at present position with new bearing to
waypoint prompt.
20221032 / E
Operation
Note !
If using Non-Follow-up or Follow-up steering modes while
dodging, “NFU” or “FU” flash.
2.10 TURN Mode
U-turn
The AP50 provides a special U-turn feature when in AUTO or
AUTO-WORK modes.
U-turn changes the current set course 180° in the opposite
direction. The user must decide whether the U-turn should be
made to Port or Starboard when bringing the boat on the new
course.
DODGE
T URN
U TURN
PORT
Press
STBD
RUDDER
340.7
00
Gyro1
A long press of the
Turn.
DODGE
T UR N
(DODGE/TURN) button activates U-
The AP50 will continue on the set course until you press either
the
(PORT) or
(STBD) button to select the direction in
which to make the U-turn. If you do not press
(PORT) or
(STBD) within 1 minute, the AP50 will return to the AUTO
mode and stay on course.
C-turn
The AP50 also provides a continuous turn feature when in
AUTO or AUTO-WORK modes. This may be used for circling
fish, purse seining, etc.
C-turn makes the vessel turn with a constant rate of turn in a
circle. The user must decide whether the C-turn should be made
to Port or Starboard.
To enter C-turn mode:
DODGE
T URN
DODGE
T URN
C TURN
90 °/min
PORT Press STBD
340.7
RUDDER
02
First select U-turn with a long press of the DODGE/TURN
button.
Then activate C-turn by another long press of the
DODGE/TURN button.
The AP50 will continue on the set course until you press either
the PORT or STBD button to select the direction in which to
make the C-turn. If you do not press PORT or STBD within 1
minute, the AP50 will return to AUTO mode and stay on course.
Gyro1
The turn rate can be adjusted either before the turn is initiated or
during the turn. Increasing the turn rate yields a smaller circle
and vice versa.
To exit C-turn mode, press any of the mode buttons. When
20221032 / E
27
Simrad AP50 Autopilot
C TURN
90 °/min
pressing the AUTO button, the new set course is shown in the
upper portion of the display.
STBD
340.7
RUDDER
05
Gyro1
Vessel turning
starboard
2.11 Multiple Station System
CTS
A UTO 329
Inactive
340.7
Gyro1
RUDDER
02
Inactive control
unit
Note !
In the normal operation of multiple control units, control is
accessible from every control unit and steering handle connected
to the AP50 system. However, only one control unit is "active"
at a time providing the user with access to all functions and
enabling the user to change modes and to set the course for
automatic course keeping. All remaining control units are
"inactive" and have no effect on course selection. A single push
on either the STBY, AUTO, or NAV buttons on an "inactive"
control unit will allow the transfer of command to make it
"active". To remain in the mode, press the current mode button.
On an inactive control unit, backlight and contrast can be
directly adjusted through the course knob.
In Master Operation (Wheelmark) of multiple control units, one
control unit must be set up for master operation. “Power on”
capability is possible from any unit, but “power off” capability
is only possible from the master unit (the unit on which Master
Operation is set to “yes” in the Installation Dockside menu,
(refer to the AP50 Installation Manual)). In Master Operation,
the remote control units and handles are locked.
2.12 Lock Function
Standard Operation
The "LOCK" function is a safety feature included in the AP50
system to lock-out all control units except for a single, userselected “active” control unit.
When the "LOCK" function is in use, no transfer of command
may take place; only the "active" control unit stays in command.
Note !
On a locked control unit, backlight and contrast can be directly
adjusted through the course knob.
STBY
STBY
28
To enable the "LOCK" function, quickly double-press the
(STBY) button on the “active” unit.
STBY
20221032 / E
Operation
340.7
Gyro1
RUDDER
The display on the "active" control unit will first show a single
key icon followed by the primary display on which the key icon
will alternate with the mode index (not when selected as Master
station).
02
Active control unit
STBY 340.7
Gyro1
Inactive
The “LOCK” function is unlocked by double-pressing the STBY
button on the “active” control unit.
RUDDER
02
Inactive control
unit
After having "unlocked" the “active” control unit, it will show
this symbol before the display returns to normal. All other
control units remain "inactive".
Master Operation
STBY 340.7
Gyro1
Inactive
In Master operation (Wheelmark), all remote units are locked at
“power on”. The key icon is shown on all remote units with
LCD displays.
RUDDER
02
Remote units
locked
STBY
STBY 340.7
Gyro1
RUDDER
02
A quick double press on the master unit’s
(STBY) button
enables the remote units. This is indicated on the master unit by
a flashing crossed key, while on the remote units, the key icon
disappears.
The first remote unit that is activated takes control of the system.
If the activated remote unit has a display, all other remote units
are locked and units with a display will show the key icon. If the
activated remote unit does not have a display (R3000X, FU50,
S35, JS10), all remote units can be operated until a unit with a
display is operated. Then, all other remotes are locked.
To unlock the locked remote units, you have to take control from
the master unit by quickly double-pressing its
(STBY)
button.
STBY
20221032 / E
29
Simrad AP50 Autopilot
2.13 External system selection
340.7
Gyro1
Disengaged
RUDDER
02
An external system selector can be used to change from
automatic to manual steering and vice versa (refer to IMO
resolution MSC.64 sec.4). The selector switch must adequately
indicate which method of steering is in operation at any given
moment. When manual steering is selected, the AP50 will be
disconnected from the vessel’s steering system and show
“Disengaged” on the display (no mode indicators are lit on the
FU50). When automatic steering is selected, the AP50 will go to
AUTO mode (or AUTO-WORK mode). For connection of an
external system selector switch, refer to “System Select”, in the
AP50 Installation Manual.
2.14 User Set-up Menu
In the AP50, the STANDBY, AUTO, and NAV modes have a
User Set-up menu with adjustable settings. You can easily reach
the set-up menus by a quick double press on the
(NAV)
button from the mode you are currently in. Move through the
menu items by pressing the Port and Starboard buttons. Use the
course knob to change a value.
NAV
NAV
SETUP
S ETU
P
NAV
S ETU P
Note !
More in depth information about the various items in the User
Set-up Menu can be found in the AP50 Installation Manual
chapters 3 and 4.
Alternating Course Knob Icon
When the course knob is used for settings in the User Set-up
menu, an icon will alternate on the screen to tell that no course
(AUTO) button.
changes can be made unless you press the
AUTO
STANDBY Mode
Backlight
SETUP
Move :
Adjust :
340.7
Gyro1
,
Backlight
Contrast
Steering function
Rudder
Speed Log
Speed source
Steer compass
Monitor comp.
Nav source
04.9kt
Log
Gyro1
Flux1
GPS1
The brightness of the backlight of the display and buttons may
be adjusted (10 grades, 10 = brightest). The setting is stored
when the system is turned off and resets to the stored level when
turned on. Adjustment is local to the control unit you adjust.
Contrast
The contrast of the display may be adjusted (10 grades, 10 =
highest contrast). The setting is stored when the system is turned
off and resets to the stored level when turned on.
Adjustment is local to the control unit you adjust. At high
temperatures, not all steps are available due to automatic
temperature compensation.
30
20221032 / E
Operation
Steering function
(only available if Thruster is selected in the Installation
Dockside Menu).
Select between the following steering functions: The boat is
steered by the rudder; by the thruster; or by a combination of the
rudder and the thruster, dependent on the selected mode. In
AUTO mode and NAV mode the rudder is always selected.
Speed (Man, Log, SOG)
The AP50 adapts to the speed of the vessel and this setting
should be adjusted accordingly.
If a speed log or other speed source is not connected, the speed
input can be set manually by the course knob with range from 1
to 70 Knots.
If an external speed source is selected, the current speed and
source will be shown.
If an external speed source is selected but lost, an alarm will be
given after 15 seconds and the manual speed will automatically
be set to the last reading. If the external source speed again
becomes available, the AP50 will again automatically use the
external source speed.
Speed Source
Select the Speed source. If no speed source is available, set the
speed source to Man (manual) and adjust for manual speed as
per “Speed above”.
Steering Compass
Select the compass to be used for steering.
Monitor Compass
Select the compass to be used as the monitor compass if more
than one compass is connected.
Nav Source
Select the source for navigational data.
AUTO Mode
A
341°
CTS
340.7
Gyro1
Backlight
SETUP
Move :
Adjust :
,
Backlight
Contrast
Steering function
Rudder
Seastate
AUTO
Rudder
0.50
Count rudder
1.40
20221032 / E
Same procedure as in STANDBY mode.
Contrast
Same procedure as in STANDBY mode.
More
31
Simrad AP50 Autopilot
Steering Function
(only available if Thruster is selected in the Installation
Dockside Menu, see the AP50 Installation Manual).
Same procedure as in STANDBY mode.
Seastate
Seastate determines the number of degrees the vessel may fall
off the set course before any rudder commands are given to the
rudder.
Select the value for the Seastate filter:
OFF:
Provides precise steering but increases rudder
activity.
AUTO:
Automatically reduces the rudder activity and
sensitivity of the autopilot in rough weather.
MANUAL: Sets yaw band manually (MAN 1 - MAN 10, 10 ≈
±6°).
This setting determines the number of degrees the vessel may
deviate from the set course before any command is given to the
rudder. In calm weather, it should be set to “OFF”, which means
that theoretically, the autopilot allows no deviation from the set
course. The Seastate filter value should be increased with
increasing sea turbulence. This will cause the sensitivity of the
rudder to be decreased such that the vessel has to deviate from
the set course by the number of degrees selected in the Seastate
filter setting before a rudder command is given. The amount of
rudder is calculated by the heading error exceeding the set limit,
multiplied by the p-factor. This will prevent excessive rudder
movement and reduce rudder activity.
Note !
In conditions where active steering is required, the Seastate
filter value should be reduced.
Rudder
Rudder sets the rudder gain, which is the ratio between the
heading error (p-factor) and the commanded angle. The default
value depends on the boat length. The value (ranging between
0.05 and 4.00) is determined during Sea trial, but can easily be
adjusted in the User Set-up menu.
Counter Rudder
Counter Rudder is the parameter that counteracts the effect of
the boat’s turn rate and inertia. The default value depends on the
boat length. The value (ranging between 0.05 and 8.00) is
determined during Sea trial, but can easily be adjusted in the
User Set-up menu.
32
20221032 / E
Operation
A
341°
CTS
340.7
Gyro1
Speed (Man, Log, SOG)
SETUP
Move :
Adjust :
,
Speed Log
Off heading lim
Turn mode
RateOfTurn
04.9kt
03°
ROT
240°/min
Thruster sens
01°
More
Same procedure as in STANDBY mode.
Off Heading Lim
Off Heading Lim 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. The default setting is 10°
and the range is 3 to 35°.
Turn Mode
Select either Rate of Turn (ROT) steering or Radius (RAD)
steering. ROT is the default setting.
ROT/RAD
ROT/RAD sets the turn value for the selected turn mode.
The rate of turn range is from 5°/minute to 720°/minute and the
radius range is 0.01 to 0.99 nautical mile.
The minimum radius can however, never be less than the value
corresponding to a Rate of Turn = 720°/minute at the set
Cruising speed.
The initial value is determined during Sea trial, but can easily be
adjusted in the User Set-up menu.
Thruster Sens
(Only available if Thruster is selected in the Installation
Dockside Menu)
The Thruster sensitivity determines how many degrees the
vessel must deviate from the set course before a thruster
command is given. As the vessel deviates from its heading, the
thruster will push the vessel back. A higher value will reduce the
thruster activity and extend the lifetime, especially for on/off
thrusters.
If the thruster commands are hunting from side to side, the set
value for Thruster sens may be too low.
If a low value for Thruster sens is needed, consider reducing
Thruster gain to avoid hunting.
Range: Continuous thrusters 0° to 30° in 1° increments
On/off thrusters 3° to 30° in 1° increments.
Default: 1° for continuous thrusters, 5° for On/Off thrusters.
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33
Simrad AP50 Autopilot
AUTO-WORK Mode
NAV
S ETUP
NAV
S ETUP
Aw
341°
CTS
340.7
Gyro1
SETUP
Move :
Adjust :
,
Backlight
Contrast
Steering function
Rudder
W Seastate
AUTO
W Rudder
0.50
W Count rudder
1.40
More
To enter the User Set-up menu when in AUTO-WORK mode,
quickly double press the NAV button.
The User Set-up menu for the AUTO-WORK is identical to the
AUTO mode User Set-up menu, except that you have the option
to select separate AUTO-WORK values for Seastate filter,
Rudder, Counter Rudder and RateOfTurn/Radius. Move
through the menu item by pressing the Port and Stbd buttons.
Use the course knob to change value.
These values are stored in the AP50 memory and are
automatically recalled when returning to AUTO-WORK mode.
Aw
SETUP
Move :
Adjust :
,
Trim
Speed Log
341°
CTS
340.7
Gyro1
P01°
00.0kt
Turn mode
W RateOfTurn
ROT
240°/min
Thruster sens
01°
More
Note !
Use the course knob to adjust the trim value, if needed. The
manual trim setting compensates for the Autotrim, which takes
time to execute the appropriate rudder offset.
Note that the Trim setting is not stored.
The Off Heading Limit setting is not available in Auto-Work
mode.
The values for Rudder and Counter Rudder will have an effect
on the vessel’s steering characteristics independent of which
steering function is selected (rudder, thruster, or rudder and
thruster).
NAV Mode
N
.12NM
340.7
Gyro1
SETUP
Move :
Adjust :
,
Backlight
Contrast
Steering function
Rudder
Seastate
AUTO
Rudder
0.50
Count Rudder
1.40
The NAV mode will not work satisfactorily before AUTO mode
is set-up and working properly.
Backlight
Same procedure as in STANDBY mode.
More
Contrast
Same procedure as in STANDBY mode.
Steering Function
Same procedure as in STANDBY mode.
Seastate Filter
Same procedure as in AUTO mode.
Rudder
Same procedure as in AUTO mode.
Counter Rudder
Same procedure as in AUTO mode.
34
20221032 / E
Operation
N
.12NM
340.7
Gyro1
Speed Log
SETUP
Move :
Adjust :
,
Speed Log
04.9kt
Off heading lim
10°
Nav Gain
3.5
Turn mode
ROT
RateOfTurn
240°/min
Thruster sens
01°
More
Same procedure as in STANDBY mode.
Off Heading Lim
Same procedure as in AUTO mode.
Nav Gain
The Navigation Gain determines how many degrees the
autopilot must change the vessel’s heading in order to bring the
vessel back on track using the Cross Track Error and the
vessel’s speed.
The higher the value of the Nav Gain, the greater the correction.
If the value is set too low, the vessel may use a long time to
reach the track. It can also drift away at strong side current.
Too high value will cause the vessel to overshoot or oscillate
around the track.
The default setting depends on the boat length and the range is
0.5 to 7.0.
Turn Mode
Same procedure as in AUTO mode.
ROT/RAD
Same procedure as in AUTO mode.
Thruster Sens
Same procedure as in AUTO mode.
NAV-WORK Mode
NAV
S ETUP
NAV
S ETUP
Nw
.12NM
340.7
Gyro1
SETUP
Move :
Adjust :
,
Backlight
Contrast
Steering function
Rudder
W Seastate
AUTO
W Rudder
0.50
W Count Rudder
1.40
More
To enter the User Set-up menu when in NAV-WORK mode,
quickly double press the NAV-button.
The User Set-up menu for the NAV-WORK mode is identical to
the NAV mode User Set-up menu, except that you have the
option to select separate NAV-WORK values for Seastate filter,
Rudder, Counter Rudder and RateOfTurn. Move through the
menu item by pressing the Port and Stbd buttons. Use the course
knob to change value.
Selected values for Seastate filter, Rudder, and Counter
Rudder are stored in the AP50 memory and are automatically
recalled when returning to NAV-WORK mode.
20221032 / E
35
Simrad AP50 Autopilot
Nw
SETUP
Move :
Adjust :
Trim
Speed Log
.12NM
340.7
Gyro1
Note !
36
Nav Gain
Turn mode
W RateOfTurn
,
P01°
04.9kt
3.5
ROT
240°/min
Thruster sens
01°
More
Use the course knob to adjust the trim value, if needed. The
manual trim setting compensates for the Autotrim, which takes
time to execute the appropriate rudder offset.
Note that the trim setting is not stored.
The Off Heading Limit setting is not available in Auto-Work
mode.
The values for Rudder and Counter Rudder will have an effect
on the vessel’s steering characteristics independent of which
steering function is selected (rudder, thruster, or rudder and
thruster).
20221032 / E
Operation
2.15 Instrument Screens and Menu
A number of instrument screens are available under each mode
screen if the required NMEA 0183 sentences are provided
(Refer to the Installation Manual, NMEA Sentences). Activate
the instrument screen by pressing the
(INFO) button.
INFO
Note !
The Instrument screens are also available on locked units.
The left-hand side of the display will show the following
information, depending on the mode:
Nw Nw
Aw Aw
340.7
Gyro1
STANDBY.
Heading.
Heading input
source.
341°
CTS
341°
CTS
341°
CTS
.02NM
.02NM
.02NM
340.7
Gyro1
340.7
Gyro1
340.7
Gyro1
340.7
Gyro1
340.7
Gyro1
340.7
Gyro1
NAV-WORK
NAV-WORK
NAV
AUTO AUTO-WORK AUTO-WORK
w/thruster
Set course
Heading/Heading input source.
w/thruster
Cross Track error
Heading/Heading input source.
Move through the available instrument screens by repeatedly
pressing the
(INFO) button. The right-hand side of the
display will show the following instrument screens:
INFO
LOG
000
270
340
090
RUDDER
02
Main
WP
SIMRAD
XTE
0.023NM
DST
32.2NM
COG
Gyro1
P
04.9 kt
BPW 272°T
GPS1
COG 274°T SOG 2.40kt
S
274°
DEPTH
199.5m
Speed/Course/Depth*
(Speed from LOG,
SOG or MAN)
Motorway
* The depth reading is referenced to the transducer, not the keel.
20221032 / E
37
Simrad AP50 Autopilot
GPS1 POSITION
N 58°
WIND DIRECTION
27.209
E 005°
58.322
COG
SOG
274°T
12.40kt
270
Bow
090
P
m/s
WP SIMRAD
BPW
272 °T
DST
32.2 NM
XTE
0.012 NM
046°
8
S
m/s
180
Nav Data
APPARENT
Bow
046°
8
WIND
TRUE
000
Stern
Wind direction
True wind
WIND
THRUSTER
80%
P
046°
8
S
m/s
Stern
Apparent wind
P
RUDDER
RUDDER
02
02
S
Thruster
(80% of maximum thrust
to port)
N
True Wind Angle
Boat Speed
Wind Direction
Apparent Wind Angle
True Wind Speed
Apparent Wind Speed
Figure 2-2 Definition of Apparent Wind/ True Wind, and
Wind Direction
38
20221032 / E
Operation
Screen Selection
If you do not need all of the instrument screens to be present in
the screen menu, you may temporarily remove screens by
quickly double-pressing the
(INFO) button. Move through
the screens by pressing the
(PORT) and
(STBD)
buttons. Each screen can be removed or selected by rotating the
course knob.
INFO
A329 A329
INSTRUMENT SELECT
INSTRUMENT SELECT
MAIN
SPEED/DEPTH
MOTORWAY
NAV DATA
WIND DIRECTION
TRUE WIND
APPARENT WIND
THRUSTER
Return to last instrument screen by a simple press on the
(INFO) button.
INFO
Instrument Set-up.
A329
Display units
WIND speed
DEPTH
POS FORMAT
Note !
20221032 / E
kt
m
000
This screen gives access to the display unit set-up of the wind
speed, depth, and position format. Press and hold the
(INFO)
button to activate the screen.
INFO
Use the Stbd button to select an item and the course knob to
select the unit.
The depth reading is referenced to the transducer, not the keel.
39
Simrad AP50 Autopilot
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40
20221032 / E
Maintenance
3 MAINTENANCE
3.1 Control unit
Under normal use, the AP50 Control Unit will require little
maintenance. The case is made from seawater resistant
aluminum and it has a polyester coating to withstand the
rigorous conditions of an exposed cockpit. It is recommended
that units kept clean of salt, since salt will corrode metal over
time.
If the unit requires any form of cleaning, use fresh water and a
mild soap solution (not a detergent). It is important to avoid
using chemical cleaners and hydrocarbons such as diesel, petrol
etc.
Make sure that all open Robnet connectors are fitted with a
protection cap at all times.
It is advisable at the start of each season to check all connections
to the control unit head and to cover them with Vaseline or
WD40 as needed.
3.2 Junction Unit
No special maintenance is required. However, it is advisable, to
make a yearly check of all connections and visually inspect the
inside of the unit.
3.3 Rudder Feedback
Make a visual inspection at 2 to 3 month intervals and at the
start of each season. Apply grease to the ball joints when
required.
3.4 Compass (RC25)
If the compass is exposed to outdoor conditions, make a visual
inspection at 2 to 3 months intervals and at the start of each
season.
3.5 Drive unit
Refer to the drive unit manual for maintenance instructions.
20221032 / E
41
Simrad AP50 Autopilot
3.6 Exchange of software program
Junction Unit PROM
Figure 3-1 J50/J50-40 Main PCB, Component Layout
AP50 Control Unit PROM
Figure 3-2 AP50 PCB, Component Layout
42
20221032 / E
Maintenance
• Remove the Programmable Read-Only Memory (PROM)
from the socket with the PROM extraction tool (part number
44139806).
• Insert the tool by pressing the two grip pins down into the two
slots in the corners of the socket.
• Squeeze the tool and pull out the PROM.
PROM extraction
tool
Cut-off
corner
Identification tag
• When inserting new PROMS, make sure its cut-off corner
matches with the corner in the socket. Press the PROM gently
into the socket.
Slots
Caution !
• The identification tag on the PROM indicates:
- the name of the unit
- the Simrad part number
- the software version
Make sure that the correct PROM is mounted in each unit:
PROM for the AP50 Control Unit:
P/N 20212189
PROM for the J50 and J50-40
Junction units:
P/N 20211934
• After changing a PROM, perform a master reset (Refer to
Installation Menu/Service/Master reset).
20221032 / E
43
Simrad AP50 Autopilot
This page is intentionally left blank.
44
20221032 / E
Troubleshooting
4 TROUBLESHOOTING
An autopilot is a complex system. Its performance depends on a
proper installation and a successful sea trial.
In the event of an autopilot failure, the AP50’s numerous test
features will assist you in isolating a probable fault.
Audible and visual alarm is provided for every fault being detected.
The audible alarm is reset by pressing any button (e.g. by
changing mode from AUTO to STANDBY). All visual alarms
will remain and alternate with the operating display until the
fault has been rectified. If an external alarm buzzer is installed
(Refer to the Installation Manual, External Alarm) the external
alarm will be given 5 sec. after the internal. Refer to the table
below for hints if you would like to try and solve the problem
yourself. However, most of the problems may require the
assistance of a Simrad dealer.
Perform any repair actions in the listed sequence.
Note !
For AP50 Plus system, the J50 boards are located inside the
JD5X Distribution unit.
Note !
‘Compass difference’, ‘Vessel off course’, and ‘Rudder limit’
warnings are automatically reset when the error is rectified.
4.1 Warnings
Display readout
Simrad
J300X
SW V1R1
P00 M00 S000
Probable fault
If the J300X/J3000X
Install the J50 Junction Unit or
status display is shown JD5X Distribution Unit.
at switch on, the startup sequence will stop to
indicate that an invalid
junction unit is installed
System failure alarms:
Rudder feedback
Rudder feedback signal
failure (autopilot
is missing or erratic.
operates on
Analog rudder not
simulated feedback installed.
and the simulated
For AP50 Plus system
feedback angle is
also refer to trouble
shown in the
shooting section in the
display)
installation manual.
Flashing rudder
Rudder not selected
angle indicator
under the Steering
function.
20221032 / E
Recommended action
1. Check all connections.
2. Check the alignment as per the
installation instructions.
3. Replace rudder feedback unit.
4. Install analog rudder.
Select Rudder under Steering
function in the User Set-up menu.
45
Simrad AP50 Autopilot
Display readout
No rudder
response
(The system will
switch to Stby
mode)
Rudder too slow
Rudder test failed
46
Probable fault
Recommended action
− Steering gear not
operative
− Broken connection
− Missing power
− Rudder feedback not
moving with rudder
Note!
If rudder control is from an AD50 or
a JD5X, refer to the troubleshooting
section in the AD50 manual or the
AP50 Plus Installation Manual.
1. Check all connections.
2. Check Rudder FB
Note!
transmission link, steering
It is recommended to try to
gear, and change over
locate the fault to either the
switches.
rudder drive (command
3. Check the drive unit motor/
signal, steering gear,
brushes and bypass
pump, bypass valve, clutch
valve/clutch.
etc.) or the rudder
For solenoid drive:
feedback by giving
NFU/FU commands on the 4. Check LEDs for command
control unit and observing
from galvanic isolated
the rudder response on the
solenoid electronics (Refer to
feedback readout of the
the AP50 Installation Manual,
same unit.
Junction Unit terminals).
− Defective electronics
5. Replace the junction unit
Power PCB.
6. Check the jumper switch (S1)
setting on J50 Power PCB.
Excessive load on steering
1. Look for mechanical
gear, air in the hydraulic
obstructions at the
system or insufficient drive
rudder/tiller/quadrant. Check
unit capacity.
the back drive force.
2. Bleed the hydraulic system.
3. Replace with a bigger pump
unit.
The following conditions
Refer to the recommended actions
may exist:
for the specific probable faults.
a) Rudder feedback failure.
b) J50 current overload.
c) Bypass/clutch overload.
Rudder moves in only one
a) Check the connections
direction
b) Replace the junction unit
a) Poor connection to one
Power PCB
of the solenoids
(continuously running
pump).
b) Faulty Power PCB in
junction unit.
20221032 / E
Troubleshooting
Display readout
Rudder test failed
(continued)
Rudder limit
Steering compass
missing
Monitor compass
missing
Failure active
Control Unit
J50 current
overload
(Remains in actual
mode without any
rudder command)
J50 Internal
Voltage
J50 high temp.
20221032 / E
Probable fault
Rudder test not
completed within 2 min.
a) Poor connections to
the drive unit.
b) Faulty Main PCB in
the junction unit.
c) Faulty Power PCB in
junction unit.
Rudder moves at full
speed to one side.
a) Faulty Power PCB in
junction unit.
Recommended action
a) Check the connections.
b) Replace the Main PCB
c) Check the Power PCB for traces
of burned transistors. – Change
Power PCB.
Replace the junction unit Power
PCB
This is a warning only and may be
caused by disturbance to compass
(waves), speed log, sharp turn or
improper parameter setting.
No data from the selected 1. If more that one compass is
compass.
connected to the system, refer to
the User Set-up menu to select a
different compass.
2. Check the connections and the
Interface menu for proper set-up.
3. Service appropriate compass.
Active control unit goes
1. Press the STBY button on an
silent.
"Inactive" unit to reset.
2. Check/repair the Robnet cable.
3. Replace the control unit PCB.
The drive unit shut down 1. Check the drive unit and drive
due to an excessive load
unit installation.
or a short circuit.
2. Disconnect the drive unit. If the
fault is still present, replace the
junction unit Power PCB.
Internal 15 V supply in
1. Replace the junction unit Main
junction unit is below the
PCB.
limit.
2. Replace the junction unit Power
PCB if Mains voltage is 12V.
Excessive temperature in 1. Switch off the autopilot.
the junction unit
2. Check for backload in the drive
(>75°C), possible long
unit/steering system.
term overload.
3. Check that the junction unit
specifications match those of
the drive unit.
The set rudder limit has
been reached or
exceeded.
47
Simrad AP50 Autopilot
Display readout
Probable fault
Recommended action
Bypass/clutch
overload
Clutch/bypass current
1. Check actual current
exceeds specified load
2. Check voltage marking on coil
(overload or short circuit)
3. Check coil resistance (through
connecting wires)
Memory failure
Wrong checksum on
memory parameters or
variables in the J50
Junction Unit or GI51
Gyro Interface.
Switch off and on again. If the
alarm is repeated and a GI51 is
installed, switch off – disconnect
GI51 – switch on again. If the
alarm is repeated, the fault has been
located to J50, otherwise GI51 has
caused the fault.
If installed, reconnect GI51,
perform a "Master reset" and make
a new "Dockside” and “Interface”
set-up. Switch off and on again. If
the alarm is repeated, replace
Junction unit Main PCB or GI51.
1. Check the Robnet connectors
Com. failure with
Faulty junction unit or
and cable.
J50
poor Robnet cable
connections from the
2. Replace the junction unit Main
junction unit.
PCB.
Low supply voltage Mains voltage less than 9 1. Verify in the System Data menu
V.
2. Switch autopilot off and charge
batteries.
3. Check/repair battery charger.
1. Verify in the System Data menu
High supply
J50, J50-40 Mains
voltage
exceeds 44 V.
2. Switch the autopilot off.
3. Check/repair battery charger.
The difference in
Check the operation of both
Compass
readings
between
the
compasses (Refer to the Installation
difference
main compass and the
Manual, System Data). If one
monitor compass exceeds compass is magnetic, the error may
the limit set for
be caused by deviation change or
“Compass difference”.
heavy sea disturbances (Refer to the
Installation Manual, Compass
Difference).
Speed missing
(Automatic reset
when available, see
page 31)
48
The speed signal from
the GPS or the log is
missing (15 sec. delay).
Check the GPS, log, and cable
connections.
20221032 / E
Troubleshooting
Display readout
Probable fault
Recommended action
No rudder cntrl
voltage
Ref. voltage for analog
For AP50 Plus system, refer to the
rudder control is missing. troubleshooting section in the AP50
Plus Installation Manual.
No thruster valve
voltage
1. External reference
voltage missing for
analog thruster
control.
Check voltage on TI51 - TB4.
2. Internal voltage
missing for ±10V or
4-20mA thruster
control.
No thruster
response
Vessel off course
End of route
NAV. data failure
(---).
Refer to the
“Service Menu” in
AP50 Installation
Manual.
20221032 / E
Wrong setting of S1, S2 in TI51.
Check internal ±12V
(+12V between S1-left and TB5-3)
(–12V between S2-left and TB5-3).
1. Refer to set limit for Thruster
1. Speed to high for
Inhibit. See “Thruster Inhibit”
thruster operation
in the AP50 Installation
2. J50 has lost
Manual.
communication with
2. Check cabling or operation of
the TI51 Thruster
the TI51 Thruster Interface.
Interface.
Refer to separate TI51 Manual.
3. Broken connection or 3. Try to switch system off and on
defective electronics.
4. Check thruster installation.
5. Replace unit.
1. Check the steering parameters
Extreme weather
(Rudder, Autotrim, Seastate
conditions, very slow
filter).
speed, or boats heading is
outside the fixed Off
2. Increase the Rudder value
heading limit of 20°
3. Increase the boat speed, if
(automatic reset when
possible, or steer manually.
inside the limit).
4. Check the steering gear and
autopilot interface.
Warning given on the
active control head when
the “END ROUTE”
waypoint name has been
received from the
navigator/ECS.
Missing or invalid Nav.
1. Use NMEA Test menu.
data.
2. Check the Nav. receiver set-up.
49
Simrad AP50 Autopilot
This page is intentionally left blank
50
20221032 / E
Glossary
5 GLOSSARY
Apparent wind – The speed and direction from which the wind
appears to blow with reference to the bow when the boat is
moving (also called relative wind).
Arrival alarm – An alarm signal issued by a voyage-tracking
unit that indicates arrival at or at a predetermined distance from
a waypoint. (see arrival circle).
Arrival circle – An artificial boundary placed around the
destination waypoint of the present navigation leg, the entering
of which will signal an arrival alarm.
Arrival perpendicular – Crossing of the line which is
perpendicular to the course line and which passes through the
destination waypoint.
Bearing – The horizontal direction of one terrestrial point from
another, expressed as the angular distance from a reference
direction, usually measured from 000° at the reference direction
clockwise through 359°.
BPW – Bearing position to waypoint – Bearing to a specified
waypoint from present position.
BWW – Bearing waypoint to waypoint - Bearing angle of the
line between the “TO” and the “FROM” waypoint, calculated at
the “FROM” waypoint for any two arbitrary waypoints.
COG - Course Over Ground - The actual direction of progress
of a vessel with respect to the surface of the earth. The vessels
heading may differ from the course over ground due to the
effects of wind, tide, currents.
ECS – Electronic Chart System
For advanced navigation steering with preset radius in routes of
waypoints.
ECDIS – Electronic Chart Display Information System.
Type approved ECS system according to the ECDIS regulations.
GPS - Global Positioning System - This system consists of 18
satellites plus 3 spares in fixed orbits, circling the earth at an
altitude of approximately 20,200 km. The system will provide
the user with 24 hour a day all weather position coverage, with
an accuracy of 15 to 100 meters.
Great circle route – A course that is the shortest distance
between two points, following a great circle
20221032 / E
51
Simrad AP50 Autopilot
Heading – The horizontal direction in which a ship actually
points or heads at any instant, expressed in angular units from a
reference direction, usually from 000° at the reference direction
clockwise through 359°.
IMO MSC(64)67 – (International Maritime Organization)
Performance standards for heading control system.
ISO 11674:2000(E) – (International Organization for
Standardization) Specifies the structure, performance, inspection
and testing of heading control systems.
Loran C - A complex radio navigation network developed by
the US coast guard, to assist a navigator in determining his
precise location. The acronym, Loran C, stands for Long Range
Navigation. It is an all weather 24 hour a day electronic system
of shore based radio transmitters.
Magnetic bearing – Bearing relative to magnetic north;
compass bearing corrected for deviation.
Magnetic deviation – Compass error; the difference between
the reading of a compass and the actual magnetic course or
bearing due to errors in the compass reading.
Magnetic heading – heading relative to magnetic north.
Magnetic variation - A magnetic compass points to the
magnetic north pole. The difference between this direction and
true north is the magnetic variation. The amount and direction of
this variation is dependent upon where on the earth you are
located.
NMEA 0183 - A format (language) designed to permit
communication between various types of marine electronic
equipment. In essence, this is a two-wire shielded, serial data
link, permitting one device to talk while other devices listen.
Numerous different sentences are available, permitting
communication between various different devices.
Rhumb line – A line that passes through all meridians at the
same angle. When drawn on a Mercator chart, the rhumb line is
a straight line. However, the Mercator chart is a distortion of a
round globe on a flat surface, so the rhumb line will be a longer
course than a great circle route.
Route - A stored sequence of waypoints. These waypoints will
be listed in the order in which you desire to follow them.
SOG - Speed over ground is the actual speed of the vessel
relative to the ocean floor.
True bearing – Bearing relative to true north; compass bearing
corrected for compass error.
True heading – Heading relative to true north (the meridian).
52
20221032 / E
Glossary
VDR – Voyage Data Recorder. Recording and storing all
information that can be relevant for reconstructing accidents,
such as time, date, position, speed, heading, depth, video,
communication, etc. Performance requirements are specified in
the IMO A.861(20), the EU directive 1999/35/EC and
IEC61996.
Waypoint - A discrete point, stored in a navigator, located on
the surface of the earth. Normally this point will be identified by
Lat/Lon coordinates although in some systems it may be shown
by T.D.'s.
XTE - Cross Track Error - Used to identify a vessels position
relative to a straight line drawn between two waypoints. The
amount the vessel is off to the left or to the right of this line is
known as the track.
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53
Simrad AP50 Autopilot
6 INDEX
Dodging
A
In Auto, 25
Alarm
In Nav, 26
external, 45
internal, 45
drive unit
stern drive, 14
Analog drive, 7, 15, 46
Analog rudder, 7, 11, 13, 45
E
Apparent wind, 38, 51
Electronic Chart System, 23
arrival circle, 22
AUTO button, 10
External system selection,
30
AUTO Mode, 17
Extraction tool, 43
Autotrim, 19, 34, 36
F
AUTO-WORK Mode, 18
Follow-up steering, 15
B
G
Backlight, 28, 30
GPS, 20, 51
BPW, 21, 51
H
Buttons, 9
Heading, 52
BWW, 21, 23, 51
Heading alarm, 33
C
I
COG, 37, 51
Illumination. See Backlight
Compass
IMO MSC(64)67, 52
monitor, 31
Inactive, 12
selection, 31
INFO button, 10, 37
steering, 31
Instrument
Continuous thrusters, 33
Screen, 37
Contrast, 30
Selection, 39
Counter Rudder, 32
Set-up, 39
Course knob, 11
ISM Code, 2
Course knob icon, 30
ISO 11674, 52
Course To Steer, 21
L
Cross Track Error, 21, 53
Lock function, 28
C-turn, 27
M
D
Marine Equipment
Directive, 1
Disengage, 12, 30
DODGE button, 10
54
Master operation, 29
20221032 / E
Index
Mixed mode, 21
STANDBY button, 9
Monitor compass, 31
Steering compass, 31
Multiple Station System, 28
N
Steering function, 18, 31,
32, 33
NAV button, 10
Stepper gyro, 13
Nav gain, 35
System select, 30
Nav source, 31
T
Navigating, 20
Thruster sensitivity, 33
NAV-WORK Mode, 24
Thruster steering, 19
NFU Steering lever, 6
Transducer, 39
NMEA 0183, 52
Trim, 34, 36
Non-follow-up steering, 15
True bearing, 52
O
True heading, 52
Off heading limit, 33
True wind, 38
On/off thrusters, 33
Turn mode, 27, 33
P
U
P-factor, 32
User Set-up Menu, 30
PROM, 43
AUTO Mode, 31
Proportional drive, 46
AUTO-WORK Mode, 34
R
NAV Mode, 34
RAD, 33
NAV-WORK Mode, 35
Radius steering, 33
STANDBY Mode, 30
Rate of turn, 33
U-turn, 27
Rhumb line, 52
V
Robnet, 1, 3, 41, 48
VDR, 53
ROT, 33
W
Route Navigation, 22
W Initial rudder, 17
Rudder, 32
Warnings
listing, 45
S
Seastate filter, 32
Waypoint, 53
Simulated feedback, 45
Wheelmark, 1, 13, 28, 29
Software, 12, 42
WORK button, 10
SOG, 37, 52
X
Speed manual, 31
XTE, 21, 53
Speed source, 31
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AP50 Autopilot Operator manual EN, Doc.no.20221032, Rev.E