Simrad AP50 User Manual
INSTRUCTION MANUA
L
Simrad AP50
Autopilot
Note!
Simrad AS makes every effort to ensure that the information contained within this
document is correct. However, our equipment is continuously being improved and
updated, so we cannot assume liability for any errors which may occur.
Warning!
The equipment to which this manual applies must only be used for the purpose for
which it was designed. Improper use or maintenance may cause damage to the
equipment or injury to personnel. The user must be familiar with the contents of the
appropriate manuals before attempting to operate or work on the equipment.
Simrad AS disclaims any responsibility for damage or injury caused by improper
installation, use or maintenance of the equipment.
Copyright
© 2003 Simrad AS
The information contained within this document remains the sole property of
Simrad AS.
No part of this document may be copied or reproduced in any form or by any
means, and the information contained within is not to be communicated to a third
party, without the prior written consent of Simrad AS.
General Information
Instruction Manual
This manual is intended as a reference guide for the correct
installation and operation of the Simrad AP50 autopilot.
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, as well as their relationship to a
complete AP50 autopilot system.
Other documentation included in this manual is a warranty
card. This card must be completed by the authorized dealer
that performed the installation and mailed-in to activate the
warranty.
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
20221032B 1
Simrad AP50 Autopilot
Document revisions
Rev Date Written by Checked by Approved by
A 03.06.02 NG GK GHR
B 18.06.03
Document history
Rev. A Original Issue
Rev. B Updated according to software revision V1R2.
Minor corrections in text. RF14XU added.
2 20221032B
General Information
Contents
1 GENERAL INFORMATION .............................................................................11
1.1 Introduction ..................................................................................................11
1.2 How to Use This Manual..............................................................................12
1.3 System Components .....................................................................................13
1.4 AP50 Control Unit........................................................................................14
1.5 Junction Units ...............................................................................................14
1.6 Rudder Feedback Units ................................................................................14
RF300S Rudder Feedback Unit....................................................................14
RF45X Rudder Feedback Unit .....................................................................15
RF14XU Rudder Feedback Unit ..................................................................15
1.7 Heading Sensors ...........................................................................................15
RC25/RFC35R Rate Compass......................................................................15
CD100A Course Detector and CDI35 Course Detector Interface................15
General NMEA Compasses..........................................................................15
HS50 GPS Heading Sensor ..........................................................................15
Other Compass Models ................................................................................16
CI300X Compass Interface......................................................................16
GI50 Gyro Interface.................................................................................16
1.8 Optional Equipment......................................................................................16
AP51 Remote Control ..................................................................................16
R3000X Remote Control ..............................................................................16
S100 NFU Steering Lever ............................................................................17
S35 NFU Steering Lever ..............................................................................17
FU50 Follow-Up Steering Lever..................................................................17
F1/2 NFU Remote ........................................................................................17
TI50 Thruster Interface.................................................................................17
AD50 Analog Drive......................................................................................18
RI35 Mk2 Rudder Angle Indicator...............................................................18
NI300X NMEA Interface Unit .....................................................................18
2 OPERATION OF THE AUTOPILOT ..............................................................19
2.1 Overview ......................................................................................................19
2.2 ON/OFF - Standby Mode (STBY) ...............................................................22
2.3 AP50 with MSD50 Stern Drive unit.............................................................24
Zero point setting..........................................................................................24
Operation ......................................................................................................24
2.4 Follow-Up (FU) Steering..............................................................................25
2.5 Non-Follow-Up (NFU) Steering ..................................................................25
S100 (NFU) Steering Lever..........................................................................25
20221032B 3
Simrad AP50 Autopilot
F1/2 (NFU) Push Button Remote Control....................................................25
R3000X Remote Control (NFU) ..................................................................26
S35 NFU Steering Lever ..............................................................................26
2.6 Automatic Steering .......................................................................................27
AUTO Mode.................................................................................................27
AUTO-WORK Mode ...................................................................................28
2.7 Thruster Steering ..........................................................................................29
2.8 Navigating with the AP50 ............................................................................30
Route Navigation..........................................................................................31
Electronic Chart System (ECS) ....................................................................32
Selecting a Different Navigator....................................................................33
NAV-WORK Mode......................................................................................33
2.9 Dodging ........................................................................................................34
Dodging in AUTO Mode..............................................................................34
Dodging in NAV Mode ................................................................................35
2.10 TURN Mode .................................................................................................36
U-turn............................................................................................................36
C-turn............................................................................................................36
2.11 Multiple Station System ...............................................................................37
2.12 Lock Function...............................................................................................37
Standard Operation .......................................................................................37
Master Operation ..........................................................................................38
2.13 External system selection .............................................................................39
2.14 User Set-up Menu.........................................................................................39
Alternating Course Knob Icon......................................................................39
STANDBY Mode .........................................................................................39
AUTO Mode.................................................................................................41
AUTO-WORK Mode ...................................................................................43
NAV Mode ...................................................................................................44
NAV-WORK Mode......................................................................................45
2.15 Instrument Screens and Menu ......................................................................46
Screen Selection ...........................................................................................48
Instrument Set-up. ........................................................................................48
3 TECHNICAL SPECIFICATIONS ....................................................................49
3.1 AP50 Autopilot System ................................................................................49
3.2 AP50 Control Unit........................................................................................50
3.3 AP51 Remote Control ..................................................................................51
3.4 Junction Units ...............................................................................................52
3.5 RC25/RFC35R Rate Compass......................................................................53
3.6 CDI35 Course Detector Interface .................................................................54
4 20221032B
General Information
3.7 CD100A Course Detector.............................................................................55
3.8 CD109 Course Detector................................................................................55
3.9 RI35 Mk2 Rudder Angle Indicator...............................................................56
3.10 RF300S Rudder Feedback Unit....................................................................57
3.11 RF45X Rudder Feedback Unit .....................................................................58
3.12 RF14XU Rudder Feedback Unit ..................................................................59
3.13 GI50 Gyro Interface......................................................................................60
3.14 CI300X Compass Interface ..........................................................................61
3.15 NI300X NMEA Interface .............................................................................62
3.16 TI50 Thruster Interface.................................................................................63
3.17 AD50 Analog Drive......................................................................................63
3.18 R3000X Remote Control ..............................................................................64
3.19 S100 NFU Steering Lever ............................................................................65
3.20 S35 NFU Steering Lever ..............................................................................65
3.21 F1/2 Remote Control ....................................................................................66
3.22 FU50 Steering Lever ....................................................................................67
3.23 Environmental Protection .............................................................................68
3.24 NMEA Sentences .........................................................................................68
4 INSTALLATION .................................................................................................71
4.1 General..........................................................................................................71
4.2 Unpacking and Handling ..............................................................................71
4.3 Installation Index ..........................................................................................71
4.4 Determining System Configuration..............................................................73
4.5 AP50 System Layout ....................................................................................73
4.6 RF300S Rudder Feedback Unit....................................................................74
4.7 RF45X Rudder Feedback Unit .....................................................................76
Electrical Connection ...................................................................................77
Mechanical Alignment .................................................................................79
4.8 RF14XU Rudder Feedback Unit ..................................................................80
Mechanical mounting ...................................................................................80
Electrical installation ....................................................................................80
Final check....................................................................................................84
4.9 J50 Junction Unit ..........................................................................................85
Cable Connections........................................................................................85
Grounding and Radio Frequency Interface (RFI).........................................86
Junction Unit Terminals ...............................................................................86
System Select................................................................................................87
AUTO/STANDBY Toggling .......................................................................87
External Alarm (Non Wheelmark System)...................................................88
External Alarm (Wheelmark System) ..........................................................88
20221032B 5
Simrad AP50 Autopilot
4.10 Drive Unit Installation ..................................................................................89
Connecting a Reversible Pump.....................................................................91
Connecting a Hydraulic Linear Drive...........................................................92
Solenoids (externally powered, common positive)..................................92
Solenoids (externally powered, common negative).................................93
Connecting Solenoid Valves ........................................................................92
Solenoids (not externally powered) .........................................................93
4.11 Control Unit..................................................................................................94
Panel-mounting.............................................................................................94
Optional Bracket mounting ..........................................................................94
RobNet Network Cables...............................................................................95
AP51 Remote Control Connection ...............................................................98
AP51 in a Wheelmark System .................................................................98
JP21 Jack Point Installation..........................................................................98
4.12 RC25/RFC35R Rate Compass......................................................................99
RFC35 Fluxgate Compass ..........................................................................102
4.13 FU50 Steering Lever ..................................................................................102
4.14 TI50 Thruster Interface...............................................................................102
4.15 AD50 Analog Drive....................................................................................102
4.16 R3000X Remote Control ............................................................................103
4.17 S100 NFU Lever Installation......................................................................103
4.18 S35 NFU Steering Lever ............................................................................104
4.19 F1/2 Remote Control ..................................................................................104
4.20 Interfacing to Optional Equipment (THD, Navigation Receiver, etc.).......105
Single NMEA input/output.........................................................................105
Double NMEA input/output .......................................................................106
NMEA Compass In ....................................................................................106
Radar Clock/Data .......................................................................................107
Analog Heading Repeater...........................................................................107
Digital Heading Repeater ...........................................................................108
GI50 Gyro Interface....................................................................................109
NI300X NMEA Interface Unit ...................................................................111
CI300X Compass Interface Unit ................................................................112
CD100A Course Detector...........................................................................114
CDI35 Interface ..........................................................................................115
5 SOFTWARE SET-UP PROCEDURE .............................................................117
5.1 Description of Installation Set-up...............................................................117
5.2 Installation Menu........................................................................................118
Language selection .....................................................................................119
Dockside .....................................................................................................119
6 20221032B
General Information
Master Operation ...................................................................................121
Boat Type...............................................................................................121
Boat Length............................................................................................121
Drive Unit Voltage.................................................................................121
Rudder Feedback Calibration ................................................................122
Rudder Calibration.................................................................................123
Rudder Test............................................................................................124
Set Rudder Zero .....................................................................................125
Rudder Limit..........................................................................................125
Rudder Deadband...................................................................................125
Thruster..................................................................................................126
Interface Set-up...........................................................................................126
Sea Trial......................................................................................................132
Compass Calibration..............................................................................133
Compass Offset......................................................................................134
Set Thrust Direction, On/Off Thruster...................................................135
Thruster Calibration, Analog Thruster...................................................135
Thruster zero ..........................................................................................135
Direction and Maximum Thrust STBD, Analog Thruster.....................136
Direction and Maximum Thrust PORT, Analog Thruster.....................136
Minimum Thrust, Analog Thruster........................................................137
Speed source ..........................................................................................137
Set Cruising Speed.................................................................................138
Set Rudder Zero .....................................................................................138
Set Rate of Turn.....................................................................................138
Adjust rudder angle/Set rate of turn.......................................................139
Manual Tuning.......................................................................................140
Automatic tuning ...................................................................................141
Speed Response .....................................................................................143
5.3 Final Test ....................................................................................................143
5.4 Providing User Training .............................................................................144
6 ADVANCED SETTINGS..................................................................................145
6.1 Service Menu..............................................................................................145
System Data................................................................................................145
NMEA Data................................................................................................146
NMEA Port Test (J50 hardware)................................................................147
Master Reset ...............................................................................................147
6.2 Settings Menu .............................................................................................148
Steering.......................................................................................................148
W Init rudder..........................................................................................148
20221032B 7
Simrad AP50 Autopilot
W Autotrim ............................................................................................148
Autotrim.................................................................................................148
Course Adjust.........................................................................................149
Compass difference................................................................................149
Off Heading lim .....................................................................................149
Drive engage ..........................................................................................150
Drive type...............................................................................................151
Drive out ................................................................................................151
Prop. gain ...............................................................................................151
Seastate ..................................................................................................151
Rudder....................................................................................................151
Counter rudder .......................................................................................152
W Seastate ..................................................................................................152
W Rudder....................................................................................................152
W Count rudder ..........................................................................................152
W Rudder limit ......................................................................................152
Cruising speed........................................................................................152
Speed response.......................................................................................152
Transition Speed ....................................................................................153
Nav Gain ................................................................................................153
Minimum rudder ....................................................................................153
Turn mode..............................................................................................154
Rate of Turn ...........................................................................................154
W Rate of Turn ......................................................................................154
Radius ....................................................................................................154
W Radius................................................................................................154
Added stop time .....................................................................................154
Init NAV ................................................................................................155
Turn Gain...............................................................................................155
W Turn Gain ..........................................................................................155
Rate Sensitivity ......................................................................................155
Thruster.......................................................................................................156
Thruster inhibit.......................................................................................156
Thruster sensitivity.................................................................................156
Thruster gain ..........................................................................................156
Minimum thrust .....................................................................................157
Thruster hyst ..........................................................................................158
Thruster Drive........................................................................................158
Response delay.......................................................................................158
7 MAINTENANCE ...............................................................................................161
8 20221032B
General Information
7.1 Control unit.................................................................................................161
7.2 Junction Unit...............................................................................................161
7.3 Rudder Feedback ........................................................................................161
7.4 Compass (RC25/RFC35R) .........................................................................161
7.5 Drive unit....................................................................................................161
7.6 Exchange of software program...................................................................162
8 TROUBLESHOOTING ....................................................................................165
8.1 Warnings.....................................................................................................165
9 SPARE PARTS LIST ........................................................................................171
10 GLOSSARY........................................................................................................177
11 INDEX .................................................................................................................181
20221032B 9
Simrad AP50 Autopilot
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10 20221032B
1 GENERAL INFORMATION
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 Simrad Egersund AS, 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.
General Information
The AP50 autopilot from Simrad represents yet another step
forward in autopilot technology with the intent of providing
small fishing boats and work boats up to 200 feet with a host of
new features. The system can be expanded and enhanced with a
selection of options and accessories.
The brain in the AP50 autopilot system is the single "intelligent"
junction 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 (See
Junction Unit Comparison table on page 14).
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.
20221032B 11
Simrad AP50 Autopilot
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. 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 installing,
operating and maintaining the Simrad AP50 autopilot. Great
care has been taken to simplify the set-up and operation and 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 get a thorough
understanding of the Simrad AP50 autopilot’s system
components and operation, as well as their relationship to a
complete AP50 autopilot system.
12 20221032B
General Information
At the end of this manual, you will find an index and a glossary,
which will help you when studying the manual.
Other documentation provided with your system includes a
warranty card.
Note ! The Warranty Card must be completed by the authorized dealer
that performed the installation and mailed-in to activate the
warranty.
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
20221032B 13
Simrad AP50 Autopilot
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.
J50 J50-40
Supply voltage 10-40 V 10-40 V
Motor current (continuous/peak) 10/20A 20/40A
Number of RobNet units* (+J50) 15 15
NMEA ports (input/output) 2 2
Solenoid output Yes Yes
Galvanic insulated solenoids Yes No
Input for NFU control Yes Yes
External alarm Yes Yes
Radar clock/data interface Yes Yes
* AP50 Control Unit, AP51 Remote Control, RFC35R Rate
Compass, FU50 Follow-up lever, CI300X Compass Interface,
NI300X NMEA Interface, TI50 Thruster Interface, AD50
Analog Drive.
Table 1-1 Junction Unit Model Comparison
1.6 Rudder Feedback Units
RF300S 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.
14 20221032B
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.
1.7 Heading Sensors
The AP50 autopilot system can be used with the following
combinations of heading sensors:
General Information
RC25/RFC35R 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.
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.
HS50 GPS Heading Sensor
The Simrad HS50 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 HS50 comprises three components: the sensor unit, the
interface unit, and the display unit.
20221032B 15
Simrad AP50 Autopilot
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 HS50 manual.
Other Compass Models
CI300X Compass Interface
The optional CI300X Compass Interface can interface the AP50
with a magnetic compass via CD100A or CD109, a fluxgate
compass with heading signal on a sine/cosine format, and a
gyrocompass with 1:1 synchro.
GI50 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.
Note ! Supply a voltage of only 12 volts to the GI50.
1.8 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.
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.
16 20221032B
General Information
S100 NFU Steering Lever
The S100 Non-follow-up steering lever is designed for indoor
console mounting and it has a spring-loaded return-tomid-position feature.
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.
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.
F1/2 NFU Remote
This handheld control for push-button steering is fitted with a
rubber grip and is made of cast seawater-resistant aluminum. It
is fitted with a 10 meter (33 ft.) cable.
TI50 Thruster Interface
The TI50 Thruster Interface is designed to provide a control
signal for operating a thruster in an AP50 system by either
on/off solenoids, analog ±10V control, or Danfoss PVEM valve.
The thruster output signal is calculated in the TI50 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 to be communicated via
RobNet. All settings are stored in the thruster interface unit.
Refer to the TI50 manual.
20221032B 17
Simrad AP50 Autopilot
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.
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.
18 20221032B
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
CTS
A
UTO
Inactive
340.
Gyro1
329
RUDDER
7
04
SIMRAD AP50
Figure 2-1 AP50 Front Panel
Buttons Action Function
STBY
AUTO
NAV
SETUP
WORK
INFO
DODGE
TURN
Short press: Switches the system on. Selects STANDBY mode.
STBY
Long press (3 sec.): Switches the system off.
Quick double press: Locks or unlocks other control units and levers in
the system.
20221032B 19
Simrad AP50 Autopilot
Buttons Action Function
Single short press: Selects AUTO mode and sets the heading
AUTO
reference.
Second short press Sets new heading reference.
Short press: Selects NAV mode prompt screen from AUTO
mode.
NAV
SETUP
WORK
INFO
DODGE
TURN
Verifies new course to steer when alert screen is
shown (can also use the course knob, see below).
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.
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
Rudder moves to port while button is pressed.
mode:
Press in AUTO
mode:
Press in User Set-up
Adjusts course to port (1°, 5°, or 10°).
Reverts to previous menu item.
or Installation
menus:
Press in STANDBY
Rudder moves to stbd. while button is pressed.
mode:
Press in AUTO
mode:
Press in User Set-up
Adjusts course to starboard (1°, 5°, or 10°).
Proceeds to next menu item.
or Installation
menus:
20 20221032B
Buttons Action Function
Press simultaneously Activates Follow-up steering mode.
Operation
Course
knob
Rotate in Follow-up
steering mode:
Rotate in AUTO
mode:
Rotate in NAV
mode:
Rotate in User Set-up
or Installation
menus:
Screen Symbol Description
Sets commanded rudder angle.
Counter clock-wise = Port course change
Clock-wise = Starboard course change
Verifies new course to steer when alert screen is
shown.
Adjusts or confirms reading.
Rotate course knob
Press (PORT) or (STBD) button
Rudder angle 4° to starboard
04
(Rudder command when analog rudder)
Rudder angle 2° to port
02
(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
Cross track error to starboard
Boat turning to starboard
AUTO
(AUTO) button
20221032B 21
Simrad AP50 Autopilot
The control unit shown in Figure 2-1 on page 19 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 38).
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 165.
2.2 ON/OFF - Standby Mode (STBY)
A single press on the
ON and the following status displays are shown:
STBY
(STBY) button switches the system
Simrad
AP50
SW V1R2
HW rev. 0
Autopilot model
Software V(ersion) and R(elease)
Hardware revision
22 20221032B
Operation
Simrad
J50
SW V1R2
P05 M00 S000
Software V(ersion) and R(elease)
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 11).
Junction unit model
STBY
A long press (3 sec.) on the
(STBY) button switches 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
(STBY)
button for 3 seconds (except in a Wheelmark system).
STANDBY mode is used when steering the boat at the helm.
Display information:
S
TBY
340.
Gyro1
7
• Standby mode
RUDDER
02
ADJUST COMPASS INPUT?
Adjust:
OK? Press or
Gyro2
Heading 018°
Offset +018°
RUDDER
02
Stepper or Synchro
gyro
S
TBY
340.
RUDDER
7
Gyro1
- -
Analog rudder
• Current heading from gyro 1: 340.7°
• Rudder angle: 2° to starboard. When there is no rudder
feedback signal (analog rudder drive) the rudder readout
shows – –).
If a stepper or synchro gyro is connected to the autopilot system
via the GI50 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.
Press the
(PORT) or (STBD) button to proceed to
Standby mode.
If the inactive symbol
FU50 or while Disengaged) the Control unit must be activated
is shown (when powered up from
before alignment by pressing the STBY button.
20221032B 23
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.
If you prefer to use the rudder angle display when leaving the
S
TBY
340.
RUDDER
10
Gyro1
7
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.
S
TBY
340.
Gyro1
RUDDER
00
Press the AUTO button and then the STBY button. The zero point
7
is now set and the following display is shown.
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.
24 20221032B
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.
Operation
FU
PS
03
340.
Gyro1
RUDDER
02
Display information:
7
• Follow-Up mode
• Commanded rudder angle: 3° to starboard
• Rudder angle: 2°
• The small starboard arrow shows that the rudder is moving.
Use the course knob to select the rudder angle.
P
STBY
S
Return to manual control in Standby mode by pressing the
(STBY) button.
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
RUDDER
340.
Gyro1
02
In STANDBY mode, the NFU display is presented when either
7
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.
STBY
Note ! 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 is controlled from AD50 Analog Drive
S100 (NFU) Steering Lever
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.
20221032B 25
Simrad AP50 Autopilot
SIMRAD
STBY-AUTO
R3000X Remote Control (NFU)
In STANDBY mode, the rudder will
move as long as the Port or Stbd button
Push buttons for Port and
Stbd NFU commands
STBY/AUTO mode button.
AUTO or NAV mode is
when lamp is lit
is pressed.
In AUTO mode the set course will
change 1° each time the button is
pressed.
Note!
If you keep the button pressed, it will
automatically change the course in
increments of 3° per second.
Pressing the mode button returns the
autopilot to the initial mode, except
when in NAV mode:
Simrad R3000X
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.
The mode button remains lit as long as the autopilot is in AUTO
or AUTO-WORK mode (and NAV mode).
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: 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.
26 20221032B
NAV STBY AUTO
Operation
NAV-WORK
STBY AUTO-WORK
Note ! 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.
Display information:
A329
340.
Gyro1
RUDDER
7
02
• 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 in the Installation menu (see page 148).
AUTO
20221032B 27
Press the AUTO button to select current vessel heading as set
heading.
Simrad AP50 Autopilot
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 (see settings on page
148), 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
NAV
double press the
SETUP
(NAV/SETUP) button (see AUTO-WORK
mode in the User Set-up menu on page 43).
If Thruster is selected under the Steering function in the User
Set-up Menu, the thruster will be used when selecting WORK
mode.
Display information:
A
w
S345
RUDDER
340.
Gyro1
7
04
• 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 (see page 148).
Caution ! The Off Heading alarm is permanently disabled in AUTO-
WORK mode.
Note ! Pair-trawling requires manual trim only, and the autotrim
should be permanently disabled at the Installation Settings
menu.
28 20221032B
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