EasyManua.ls Logo

Raymarine Autohelm ST4000 User Manual

Raymarine Autohelm ST4000
45 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
Page #1 background imageLoading...
Page #1 background image
Distributed by
Any reference to Raytheon or
RTN in this manual should be
interpreted as Raymarine.
The names Raytheon and RTN
are owned by the
Raytheon Company.
Question and Answer IconNeed help?

Do you have a question about the Raymarine Autohelm ST4000 and is the answer not in the manual?

Raymarine Autohelm ST4000 Specifications

General IconGeneral
TypeAutopilot
DisplayLCD
Heading SensorFluxgate Compass
Voltage12V
Course ComputerIntegrated
Storage Temperature-20°C to +70°C

Summary

Specifications

Introduction

Safety

Basic Operation

Chapter 1: Operation

1.1 Basic principles

Basic principles of autopilot operation and returning to manual steering.

1.2 Operator controls

Details of the control buttons for the autopilot functions.

Operator Controls - Detailed

Standby

Controls for engaging/disengaging autopilot for hand steering.

Auto

Controls for engaging automatic steering and maintaining heading.

Course changes (-1, +1, -10, +10)

Controls to alter course in increments of 1 and 10 degrees.

Chapter 1: Advanced Functions

Dodge

Procedure to avoid obstacles under autopilot control.

Track Control

Allows autopilot to maintain track between two waypoints using GPS/Decca/Loran.

Windvane Mode (WindTrim)

Steer relative to apparent wind angle, eliminating turbulence effects.

Chapter 1: Additional Controls

Illumination

Controls for switching on display illumination for night viewing.

Off Course Alarm

Alarm sounds if vessel strays from locked heading for over 20 seconds.

1.3 Operating hints

Advice on optimal autopilot use and safety in various conditions.

Advanced Operation

Chapter 2: Using Track Control and WindTrim

2.1 Operation in Track Control

Maintaining track between waypoints using GPS/Decca/Loran navigation.

2.2 Operation in WindTrim mode

Maintaining course relative to apparent wind angle using wind data.

Track Control Details

Cross track error

Vessel distance from a planned route, displayed in nautical miles.

Track Control Enhancements

Tidal Stream Compensation

Autopilot compensates for tidal streams and leeway when maintaining track.

Limitations

Discusses limitations of Track Control, especially with NMEA 0180 data.

Low Speed Operation

Advice for operating Track Control at low speeds.

Track Control Safety and Warnings

Dodges

Procedure for avoiding obstacles while in Track Control mode.

Warning messages

Displays for NMEA data errors or large cross track error.

WindTrim Mode Features

Wind shift alarm

Alarm sounds if apparent wind angle changes by more than 15°.

Chapter 3: Adjusting autopilot performance

3.1 Setting up Rudder Gain

Adjusting rudder gain for stable control and improved steering characteristics.

Autopilot Calibration Setup

3.2 Setting up Automatic Trim

Setting trim level to correct for varying wind loads on sails.

4.1 Entering calibration mode

Procedure to enter the autopilot calibration mode.

Chapter 4: Autopilot re-calibration

4.2 Exiting calibration mode

How to exit calibration mode and save or discard settings.

4.3 Suggested initial calibration settings

Recommended initial settings for safe performance during sea trials.

Calibrating the Autopilot

4.4 Calibrating the autopilot to suit your boat

Detailed steps for calibrating rudder gain, offset, turn rate, cruise speed, etc.

Calibration Levels

Calibration Level 7 (Trim Level)

Selects and sets the level for automatic trim correction.

Calibration Level 8 (Steering system type)

Sets the steering system type, especially if a rudder reference transducer is fitted.

Calibration Level 9 (Magnetic variation)

Enters the magnetic variation level for the boat's current position.

Advanced Calibration Settings

Calibration Level 11 (Current Vessel Latitude)

Sets vessel latitude for Northerly/Southerly heading error compensation.

Calibration Level 13 (Rudder Damping)

Adjusts rudder damping to prevent hunting and ensure smooth positioning.

Calibration Access Control

4.5 Disabled calibration access

Procedure to disable calibration setup to prevent unauthorized access.

Installation

Chapter 5: Installation

5.1 Control head

Details on siting, mounting, and connecting the control head unit.

Control Head Connections

Power supply connection

Connecting the dedicated power supply for the autopilot.

Cable connectors

Information on connecting spade connectors for electrical connections.

System Interfacing

Connection to the Sea Talk bus

Connecting the ST4000 to the SeaTalk bus for data communication.

5.2 Fluxgate Compass

Information on mounting and positioning the fluxgate compass.

Compass and Rudder Transducer

Mounting position

Guidance on optimal placement of the fluxgate compass.

5.3 Rudder Reference Transducer

Details on installing a rudder reference transducer for rudder angle readout.

Transducer Details

Mounting position

Instructions for mounting the rudder reference unit.

Control dimensions

Critical dimensions for tiller arm and rudder reference arm alignment.

Cabling

Cabling connections for the rudder reference transducer.

Linear Actuator Installation

5.4 Linear Actuator

Mounting and installation of the linear drive unit.

Porthand mounting

Alternative mounting for the drive unit on the port side.

Basic installation

Direct mounting of the ST4000 onto the starboard cockpit seat.

Actuator Mounting Components

Tiller pin installation

Steps for installing the tiller pin using epoxy.

Mounting socket installation

Installing the mounting socket for the drive unit.

Installation accessories

Overview of accessories for non-standard installations.

Additional Mounting Options

Pushrod extensions

Using pushrod extensions to adjust length.

Tiller brackets

Using tiller brackets to vary tiller pin offset.

Cantilever Mounting

Cantilever mounting

Attaching the autopilot to a vertical face using a cantilever socket.

Pedestal Socket Mounting

Pedestal socket mounting

Using a pedestal socket assembly to raise the drive unit mounting socket.

Actuator Cabling and Socket

Cabling and Socket Installation

Connecting the actuator to the control head via plug and socket.

Socket installation

Assembling and installing the socket for the actuator cable.

Chapter 6: Interfacing

6.1 Cabling

Cabling for the NMEA data port.

6.2 NMEA data transmission to other equipment

Transmitting NMEA information to other equipment using a SeaTalk Interface.

Chapter 7: Functional Test and Initial Sea Trial

7.1 Functional test

Simple tests to confirm system wiring and setup.

Switch on

Initial check upon switching on the autopilot system.

Operating sense

Checking the direction of helm application for course changes.

System Interface Checks

Rudder reference phase

Verifying rudder reference transducer cabling and phase.

Navigation interface (GPS, Decca, Loran)

Checking the interface with position transducers via NMEA data port.

Wind transducer interface

Checking the interface with a wind instrument via NMEA data port.

Sea Trial Procedures

7.2 Initial Sea trial

Performing an initial sea trial to fine-tune the autopilot settings.

Automatic Compass deviation correction

Correcting fluxgate compass deviation for optimal autopilot performance.

Autopilot Operation and Sense

Autopilot operation

Familiarizing with autopilot operation through manual steering and course changes.

Operating sense reversal

Procedure to reverse the autopilot's operating sense.

Chapter 8: Accessories

Remote Controls

Remote control units for autopilot operation at various positions.

System Interfaces & Transducers

Components for interfacing with wind, data, and rudder position sensors.

Chapter 9: Maintenance

Control head

Maintenance advice for the control head unit.

Drive unit

Maintenance advice for the drive unit.

Cabling

Maintenance advice for cables.

Chapter 10: Fault Finding

Related product manuals