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Simrad NAC-D User Manual

Simrad NAC-D
34 pages
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ENGLISH
NAC™ -D
Commissioning Manual
www.simrad-yachting.com
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Simrad NAC-D Specifications

General IconGeneral
TypeAutopilot System
Max Current Output10 A
CommunicationNMEA 2000
Water resistanceIPX6
Operating Voltage12/24V DC
Maximum drive output (continuous)10 A
Operating Temperature-15°C to +55°C

Summary

Preface

Disclaimer

Legal notice regarding product use and liability.

Governing Language

Specifies the official language version of the documentation.

Trademarks

Lists registered trademarks and intellectual property rights.

Copyright and Warranty

States copyright holder and warranty information for the product.

Compliance Statements

Declares conformity with regulatory requirements for different regions.

Manual Information

Details about the manual's scope, text conventions, and available translations.

Introduction

NAC-D Autopilot Computer

Overview of the NAC-D autopilot computer and its system compatibility.

Autopilot Controllers and Functions

Discusses control units, user interface, and available autopilot steering modes.

Autopilot Computer Setup

Outlines the two main steps for configuring the autopilot computer after installation.

Dockside Setup

Data Source Selection

Process for selecting and configuring necessary data sources for the autopilot system.

Override Function

Explains the SteadySteer feature's reaction to manual steering inputs.

Boat Characteristics

Covers settings like boat type, length, and cruising speed affecting autopilot performance.

Drive Configuration

Controls how the autopilot computer operates the boat's steering system.

Rudder Setup

Guides on choosing the correct rudder feedback source for the autopilot.

Sea Trial

Compass Setup

Instructions for calibrating the compass for optimal autopilot performance.

Transition Speed

Defines the speed at which the autopilot switches between low and high speed profiles.

Set Turn Rate

Used for setting the preferred turn rate of the boat.

Tuning the Autopilot

Procedures for verifying and optimizing autopilot steering performance.

Rudder Gain

Explains the parameter determining the ratio between commanded rudder and heading error.

Counter Rudder

Describes the opposite rudder applied to stop turns after course changes.

User Settings

Steering Profile Settings

Configuration options for High and Low speed steering profiles.

Turn Rate

Manually setting the turn rate for heading changes greater than 5 degrees.

Autotrim

Controls how fast the autopilot applies rudder to compensate for heading offset.

Init Rudder

Defines how the rudder moves when switching to automatic mode from manual steering.

Turn Pattern Settings

Configuration for automatic turn steering features available in AUTO mode.

Depth Contour Tracking (DCT)

Enables the autopilot to follow a depth contour.

Installation Verification

Checklist

A list to verify the correct installation of all autopilot system components.

Boat Specific Settings

Details for recording boat-specific configuration parameters.

Steering System

Overview of steering system settings and profiles.

Steering Profiles

Settings for low and high speed steering profiles.

Maintenance

Preventive Maintenance

Limited maintenance tasks required for the unit.

Checking the Connectors

Instructions for visual inspection of unit connectors.

Software Update

Procedures for updating the autopilot computer software.

Resetting the Autopilot Computer

How to reset the autopilot to its factory default settings.

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