Garmin GHP 12 Autopilot System User Manual

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This revision was written to software version 2.2 of the GHP 12, which
added solenoid drive unit compatibility.
To obtain the best possible performance and to avoid damage to your
boat, install the Garmin
®
GHP 12 marine autopilot system according
to the following instructions. Professional installation of the autopilot
system is highly recommended. Specic training in steering systems
and in marine electrical connections is required to properly install the
autopilot system.
Read all installation instructions before proceeding with the
installation. If you experience difculty during the installation, contact
Garmin Product Support.
NOTE: There is an installation checklist on the last page of these
instructions. Remove the last page and refer to the checklist as you
proceed through the GHP 12 installation.
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• Go to http://my.garmin.com.
• Keep the original sales receipt, or a photocopy, in a safe place.
For future reference, write the serial number assigned to each
component of your GHP 12 system in the spaces provided on page 3.
The serial numbers are located on a sticker on each component.
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• Go to www.garmin.com/support and click Contact Support for in-
country support information.
• In the USA, call (913) 397.8200 or (800) 800.1020.
• In the UK, call 0808 2380000.
• In Europe, call +44 (0) 870.8501241.
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 
You are responsible for the safe and prudent operation of your
vessel. The GHP 12 is a tool that will enhance your capability to operate
your boat. It does not relieve you from the responsibility of safely
operating your boat. Avoid navigational hazards and never leave the
helm unattended.
Always be prepared to promptly regain manual control of your boat.
Learn to operate the GHP 12 on calm and hazard-free open water.
Use caution when operating the GHP 12 near hazards in the water, such
as docks, pilings, and other boats.
See the Important Safety and Product Information guide in the product
box for product warnings and other important information.
 
Equipment to be connected to this product should have a re enclosure
or be provided with a re enclosure.
Always wear safety goggles, ear protection, and a dust mask when
drilling, cutting, or sanding.
Notice
When drilling or cutting, always check the opposite side of the surface.
Be aware of fuel tanks, electrical cables, and hydraulic hoses.
July 2011 190-01289-02 Rev. B Printed in Taiwan

Garmin GHP 12 Autopilot System Specifications

General

Type	Autopilot System
Maximum Pressure	1000 psi
NMEA 2000 Compatible	Yes
Dimensions	Varies by component
Weight	Varies by component
Water Rating	IPX7
Voltage Range	10-30 V DC
Operating Temperature	-15°C to 55°C
Automatic guided routes (Auto Guidance)	Yes
GPS	Yes
Features	Auto Guidance
Integration	Garmin Chartplotters, NMEA 2000 instruments
Power Requirements	12/24 VDC
GHP 12 Pump Compatibility	Compatible with GHP 12 pumps

Summary

Important Safety Information

Installation Preparation

Mounting and Connection Considerations

General guidelines for component placement and wiring.

Drive Unit Mounting and Wiring Considerations

Specific advice for installing the drive unit and its cables.

ECU Mounting and Wiring Considerations

Guidance on mounting and wiring the Electronic Control Unit (ECU).

CCU Mounting Considerations

Factors to consider when mounting the Course Computer Unit (CCU).

CCU Wiring Considerations

Details on wiring the CCU to other components.

NMEA 2000 Wiring Considerations

GHC 10 Mounting Considerations

GHC 10 Wiring Considerations

Shadow Drive Mounting Considerations

Installation Procedures

Drive Unit Installation

Instructions for installing the autopilot drive unit.

Preparing a non-Garmin Drive Unit

Steps to adapt a non-Garmin drive unit for the GHP 12.

Preparing a Solenoid Drive Unit

Steps to prepare a solenoid-type drive unit for the GHP 12.

ECU Installation

Mounting the ECU

Guidance on selecting a location and mounting the ECU.

Connecting the Drive Unit to the ECU

Connecting the ECU to Power

Instructions for connecting the ECU to the boat's power source.

CCU Installation

Installing the CCU Mounting Bracket

Securing the CCU in the CCU Bracket

GHC 10 Installation

Mounting the GHC 10

Connecting the GHC 10

Connecting the Devices to a NMEA 2000 Network

Connecting the CCU to an Existing NMEA 2000 Network

Building a Basic NMEA 2000 Network for the GHC 10 and the CCU

Shadow Drive Installation

Configuring the GHP 12

Dockside Wizard

Initial setup wizard for configuring the autopilot on the boat.

Selecting the Drive Unit Voltage

Selecting the Clutch Voltage

Selecting the Solenoid Voltage

Selecting the Bypass Valve Voltage

Enabling Shadow Drive

Calibrating the Rudder

Procedure to calibrate the rudder feedback sensor.

Tuning a Non-Garmin Drive Unit

Testing the Steering Direction

Selecting the Speed Source

Verifying the Tachometer

Reviewing the Results of the Dockside Wizard

Sea Trial Wizard

Important Sea Trial Wizard Considerations

Configuring the Planing RPM

Configuring the Planing Speed

Configuring the High RPM Limit

Configuring the Maximum Speed

Calibrating the Compass

Procedure to calibrate the boat's compass for autopilot use.

Performing the Autotune Procedure

Automated procedure to tune autopilot performance.

Setting North

Setting the Fine Heading Adjustment

Evaluating the Results of the Autopilot Configuration

Testing and Adjusting the Autopilot Configuration

Adjusting the Acceleration Limiter Settings

Adjusting the Autopilot Gain Settings

Reducing the Risk of ECU Drive Circuit Overload

Adjusting the Rudder Rate Limiter

Advanced Configuration

Manually Adjusting the Settings for a Non-Garmin Drive Unit

Performing Advanced Tuning Procedures for Non-Garmin Drive Units

Tuning the Speed on a non-Garmin Drive-Unit

Tuning the Error Tolerance on a non-Garmin Drive-Unit

GHP 12 Configuration Settings

Error and Warning Messages

GHP 12 Installation Checklist