Garmin GHP 12 Autopilot System Installation Instructions - Page 9

Installation Procedures After you have planned the GHP 12 installation on your boat and satisfied all of the mounting and wiring considerations for your particular installation, you can begin mounting and connecting the components. Drive Unit Installation The drive unit drives the rudder and is sold separately from the GHP 12. When you purchase a drive unit from Garmin, it will have the correct cables and connectors. If a drive unit is installed on your boat already, you can purchase GHP 12 drive unit cables (not included) to adapt your drive unit for use with the GHP 12. Preparing a Solenoid Drive Unit In order to use a solenoid drive unit with the GHP 12, you must install both the GHP 12 drive unit power cable and the GHP 12 rudder feedback cable. Both cables are sold separately. These instructions apply only to solenoid-type drive units. To prepare a non-solenoid drive unit, see page 9. 1. If your solenoid drive unit has cables connected, disconnect the cables. 2. Consult the documentation provided by the manufacturer of your solenoid drive unit to identify the connections on your drive unit. 3. Connect the GHP 12 drive unit power cable (not included) to your solenoid drive unit, based on the diagram and tables below. The GHP 12 drive unit power cable cannot be extended. Installing a Garmin Drive Unit ➊ Use the installation instructions provided with the drive unit to install it on your boat. Preparing a non-Garmin Drive Unit In order to use a non-garmin drive unit with the GHP 12, you must install both the GHP 12 drive unit power cable and the GHP 12 rudder feedback cable. Both cables are sold separately. These instructions do not apply to a solenoid-type drive unit. To prepare a solenoid-type drive unit, see page 9. ➊ ➋ ➌ ➍ + - + - + - ➋ ➌ ➍ 1. If your drive unit has cables connected, disconnect the cables. 2. Consult the documentation provided by the manufacturer of your drive unit to identify the connections on your drive unit. 3. Connect the GHP 12 drive unit power cable (not included) to your drive unit, based on the wire colors and functions defined below. Wire Color Red Black Blue White Function Drive unit positive Drive unit negative Clutch power (cut and tape this wire if your drive unit has no clutch) Clutch ground (cut and tape this wire if your drive unit has no clutch) The GHP 12 drive unit power cable cannot be extended. 4. Connect the GHP 12 rudder feedback cable (not included) to your drive unit, based on the wire colors and functions defined below. Wire Color Function Red Feedback positive (+) Black Feedback negative (-) Yellow Feedback wiper If necessary, extend the appropriate wire with 22 AWG (.33 mm2) wire. 5. If necessary, use the installation instructions provided with the drive unit to install it on your boat. ➏➐ Item Description ➊ GHP 12 Drive Unit Power Cable ➋ Starboard solenoid ➌ Port solenoid ➍ Bypass solenoid ➎ Auxiliary steering system ➏ Flyback diode ➐ Blocking diode Notes Sold separately. May not be present in all systems. May not be present in all systems. Required for all installations. Required if an auxiliary steering system is present. Wire Color ➊ Red ➋ Black ➌ Blue ➍ White ➎ N/A ➏ N/A ➐ N/A ➑ N/A Description Connect to starboard solenoid positive (+). Connect to port solenoid positive (+) Connect to bypass solenoid positive (+). Cut and tape this wire if no bypass solenoid is present Connect to starboard, port, and bypass solenoid common (-). Auxiliary steering starboard positive (+) (if present). Auxiliary steering port positive (+) (if present). Auxiliary steering bypass positive (+) (if present). Auxiliary steering common (-) (if present). GHP 12 Installation Instructions 9