Garmin GHP 20 System for Yamaha Helm Master Installation Instructions
Contents
1. GHC 20 NMEA 2000 network provides power to the GHC 20 12 VDC power source eocec NMEA 0183 compatible device NOTE When connecting a NMEA 0183 device with only one transmitting Tx line the NMEA 2000 bus and the NMEA 0183 device must be connected to a common ground GHP 20 Installation Instructions Specifications Device Specification Measurement CCU Dimensions 3 19 32 in diameter 91 4 mm Weight 5 6 oz 159 g Temperature From 5 F to 131 F from 15 C to 55 C range Case material Fully gasketed high impact plastic waterproof to IEC 60529 IPX7 standards Steering 9 5 ft 3 m controller cable length Alarm Dimensions L x Diameter 29 32 x 1 in 23 25 mm Weight 2 4 oz 68 9 Temperature From 5 F to 131 F from 15 C to 55 C range Cable length 10 ft 3 0 m GHC 20 Dimensions 4 24 64 x 4 17 32 x 1 3 16 in 110 x 115 x 30 mm Weight 8 71 oz 247 g Cables NMEA 0183 data cable 6 ft 1 8 NMEA 2000 drop cable and power cable 6 1 2 ft 2 m Temperature From 5 F to 158 F from 15 C to 70 C range Compass safe 81 4 in 209 mm distance Material Case fully gasketed polycarbonate waterproof to IEC 60529 IPX7 standards Lens glass with an anti glare treatment GHC 20 power 2 5 W max2. 12 Testing and Adjusting the Autopilot Configuration 12 Adjusting the Acceleration Limiter Settings 13 Adjusting the Autopilot Gain 5 13 Advanced Configuration 13 Enabling the Advanced Configuration Procedure 13 Advanced Configuration 13 Manually Running the Automated Configuration Procedures 13 Manually Running the Sea Trial Wizard sss 13 Manually Defining Individual Configuration Settings 13 Appendix ertt enr ritratto reine 14 NMEA 0183 Connection 14 OpecifiCaliOris oan ono c anre d OG MR ERR 15 NMEA 2000 Information ne 15 COU sci ct ea deem m t ERIS vere C ved 15 bn 15 NMEA 0183 Information 16 GHP 20 Configuration Settings 16 Error and Warning 17 GHP 20 Installation Checklist ss 19 CCU Mounting Template ttt ttes 19 GHP 20 Installation Instructions GHP 20 Package Contents
3. 02 For the latest free software updates excluding map data throughout the life of your Garmin products visit the Garmin Web site at www garmin com A GARMIN 2013 Garmin Ltd or its subsidiaries Garmin International Inc 1200 East 151 Street Olathe Kansas 66062 USA Garmin Europe Ltd Liberty House Hounsdown Business Park Southampton Hampshire SO40 9LR UK Garmin Corporation No 68 Zhangshu 2 Road Xizhi Dist New Taipei City 221 Taiwan R O C www garmin com 190 01455 10_0A trademarks of Garmin Ltd ronics Association Printed in Taiwan
4. Py NMEA 2000 drop cable 6 ft 2 m x2 NMEA 2000 power cable NMEA 2000 T connector x3 NMEA 2000 terminator male NMEA 2000 terminator female NMEA 2000 Extension Cables NMEA 2000 extension cables are available if needed Contact your local Garmin dealer or Garmin Product Support for ordering information Tools Needed Safety glasses Drill and drill bits 31 2 in 90 mm hole saw Wire cutters strippers Phillips and flat screwdrivers Cable ties e Waterproof wire connectors wire nuts or heat shrink tubing and a heat gun Marine sealant e Portable or handheld compass to test for magnetic interference when determining the best location to install the CCU Anti seize lubricant optional NOTE Mounting screws are provided for the GHC 20 and the CCU If the provided screws are not appropriate for the mounting surface you must provide the correct types of screws GHP 20 Installation Instructions Installation Preparation Before installing the GHP 20 autopilot system you must plan where all the components will be located on your boat Temporarily place all the components where you intend to install them Read these considerations before you begin planning your installation 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 20 ins
5. Garmin MIN 2 Disconnect one side of a NMEA 2000 T connector from the network If necessary to extend the NMEA 2000 network backbone connect a NMEA 2000 backbone extension cable not included to the side of the disconnected T connector 4 Add the included T connector for the CCU to the NMEA 2000 backbone by connecting it to the side of the disconnected T connector or backbone extension cable 5 Route the included drop cable O to the bottom of the T connector added in step 4 and connect it to the T connector If the included drop cable is not long enough you can use a drop cable up to 20 ft 6 m long not included 6 Connect the drop cable to the to the CCU Building a Basic NMEA 2000 Network for the GHC 20 and the CCU NOTICE You must connect the included NMEA 2000 power cable to the boat ignition switch or through another in line switch The GHC 20 will drain your battery if the NMEA 2000 power cable is connected to the battery directly 1 Connect the three T connectors together by their sides Je UB 2 Connect included NMEA 2000 power cable to a 12 Vdc power source through a switch Connect to the ignition switch
6. of the boat if possible or through an in line switch not included 3 Connect the NMEA 2000 power cable to one of the T connectors 4 Connect one of the included NMEA 2000 drop cables to one of the T connectors and to the GHC 20 5 Connect the other included NMEA 2000 drop cable to the other T connector and to the CCU 6 Connect the male and female terminators to each end of the combined T connectors Connecting Optional Devices to the GHP 20 Autopilot System To use advanced features of the GHP 20 an optional NMEA 2000 compatible or NMEA 0183 compatible GPS device can be connected to the NMEA 2000 network or to the GHC 20 through NMEA 0183 NMEA 0183 Connection Considerations To identify the Transfer Tx A and B wires for your NMEA 0183 compatible device consult the installation instructions for your device When connecting NMEA 0183 devices with two transmitting and two receiving lines it is not necessary for the NMEA 2000 bus and the NMEA 0183 device to connect to a common ground When connecting a NMEA 0183 device with only one transmitting Tx line or with only one receiving Rx line the NMEA 2000 bus and the NMEA 0183 device must be connected to a common ground Connecting an Optional NMEA 0183 compatible Device to the GHC 20 1 Determine the NMEA 0183 connection assignments of your NMEA 0183 compatible device 2 Connect your NMEA 0183 compatible device to the GHC 20 based on the
7. If the value does not match the value on the GHC 20 use the arrows to adjust the NMEA Setup NMEA If the connected NMEA value Checksum 0183 GPS unit incorrectly Speed Source Setup High RPM Allows you to adjust the E esu Limit highest RPM point of your ce boat If the value does not ti you turri match the value on the m in set to off GHC 20 use the arrows to THREE eee adjust the value NMEA Setup Reversed XTE If the connected NMEA 0183 16 GPS unit sends the incorrect steering direction with the cross track error signal You can use this setting to correct the steering direction GHP 20 Installation Instructions autopilot will allow a large long term cross track error NOTE Advanced configuration settings are available when using the advanced configuration procedure page 13 Other settings are available during normal operation of the GHP 20 See the configuration section of the GHC 20 Owner s Manual for more information GHP 20 Installation Instructions Controller Detected detect the boat Steering system when trying to engage Category Setting Description Error and Warning Messages Navigation Setup Navigation Allows you to adjust how Error Message Cause Autopilot Action Gain aggressively the autopilot Autopilot is not The autopilot is no Alarm sounds eliminates cross track error receiving navigat
8. usage NMEA 2000 9 16 Vdc input voltage NMEA 2000 6 300 mA LEN NMEA 2000 PGN Information Transmit 059392 ISO Acknowledgment 059904 ISO Request 060928 ISO Address Claim 126208 NMEA Command Request Acknowledge Group Function 126464 Transmit Receive PGN List Group Function 126996 Product Information 127245 Rudder Data 127250 Vessel Heading GHC 20 Type PGN Description Receive 059392 ISO Acknowledgment 059904 ISO Request 060928 ISO Address Claim 126208 NMEA Command Request Acknowledge Group Function 126464 Transmit Receive PGN List Group Function 126996 Product Information 127245 Rudder Data 127250 Vessel Heading 127488 Engine Parameters Rapid Update 128259 Water Speed 129025 Position Rapid Update 129029 GNSS Position Data 129283 Cross Track Error 129284 Navigation Data 129285 Navigation Route WP information 130306 Wind Data 130576 Small Craft Status Transmit 059392 ISO Acknowledgment 059904 ISO Request 060928 ISO Address Claim 126208 NMEA Command Request Acknowledge Group Function 126464 Transmit Receive PGN List Group Function 126996 Product Information 128259 Water Speed 129025 Position Rapid Update 129026 COG amp SOG Rapid Update 129283 Cross Track Error 129284 Navigation Data 129540 GNSS Sats
9. one i 7 receiving Rx line the NMEA 2000 bus the NMEA 0183 device must be connected to a common ground 2 Example Three of Three Only One Transmitting Wire If your NMEA 0183 compatible device has only one transmitting 6 wire Tx connect it to the brown wire Rx A from the GHC 20 and Sooo connect the green wire Rx B from the GHC 20 to NMEA ground GHC 20 NMEA 2000 network provides power to the GHC 20 12 VDC power source NMEA 0183 compatible device Wire GHC 20 Wire NMEA 0183 Compatible Device Wire Color Function Function Power NA NMEA 0183 ground GHC 20 __ Blue Tx A RX A NMEA 2000 network provides power to the GHC 20 White TXB 12 VDC power source Brown Rx A THA NMEA 0183 compatible device Green Rx B Tx B NOTE When connecting NMEA 0183 devices with two transmitting Wire GHC 20 Wire NMEA 0183 Compatible Device Wire and two receiving lines it is not necessary for the NMEA 2000 bus and Colors EUncHoN Function the NMEA 0183 device to connect to a common ground Power Green Rx B connect NMEA 0183 ground Example Two of Three Only One Receiving Wire to NMEA 0183 ground n B de e Blue TX A RX A nnect 1 ire 1x rom and leav wire Tx B from the GHC 20 uncomected 0 o White TB C PABI Brown Tx A
10. steel screws may bind when screwed into fiberglass and overtightened Garmin recommends applying an anti galling stainless anti seize lubricant to the screws before installing them Before you can mount the GHC 20 you must select a mounting location page 5 1 Trim the flush mount template and ensure it will fit in the location where you plan to mount the GHC 20 The flush mount template is included in the product box not in these instructions The flush mount template has adhesive on the back 2 Remove the protective liner from the adhesive on the back of the template and apply it to the location where you plan to mount the GHC 20 3 If you will be cutting the hole with a jigsaw instead of a 3 7 s2in 90 mm hole saw use sin 10 mm drill bit to drill a pilot hole as indicated on the template to begin cutting the mounting surface 4 Using the jigsaw or the 3 5 in 90 mm hole saw cut the mounting surface along the inside of the dashed line indicated on the flush mount template 5 If necessary use a file and sandpaper to refine the size of the hole 6 Place the GHC 20 into the cutout to confirm that the four mounting holes are correct 7 Select an option Ifthe mounting holes are correct proceed to step 8 If the mounting holes are not correct mark the correct locations of the four mounting holes 8 Remove the GHC 20 from the cutout 9 Drill the four 7 s4 in 2 8 mm pilot holes If yo
11. 00 Network for the GHC 20 and the COU a SL n UE 10 Connecting Optional Devices to the GHP 20 Autopilot System ba NMEA 0183 Connection Considerations Connecting an Optional NMEA 0183 compatible Device to the GHC 200 ste 10 Configuring the GHP 20 11 About the Dockside Wizard sss 11 Performing the Dockside Wizard 11 Starting the Dockside Wizard sssssssssses 11 Testing the Steering Direction sss 11 Selecting the Speed Source du Verifying the Tachometer sss Reviewing the Results of the Dockside Wizard 11 About the Sea Trial Wizard sse 12 Important Sea Trial Wizard Considerations 12 Starting the Sea Trial 12 Performing the Sea Trial Wizard sss lz Configuring the Planing RPM sig Calibrating the Compass sse Performing the Autotune Procedure Setting d 12 Setting the Fine Heading 12 Evaluating the Results of the Autopilot Configuration
12. A GARMIN GHP 20 Steer by Wire Installation Instructions To obtain the best possible performance and to avoid damage to your boat install the Garmin GHP 20 marine autopilot system according to the following instructions Professional installation of the autopilot system is highly recommended This autopilot system is designed to interface with your specific type of boat If you are not sure that this system is designed for use with your boat contact your Garmin dealer or Garmin product support Read all installation instructions before proceeding with the installation If you experience difficulty 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 20 installation Registering the Device 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 20 system in the spaces provided on page 3 The serial numbers are located on a sticker on each component Garmin Product Support Go to www garmin com support and click Contact Support for in country support information Inthe USA call 913 397 8200 or 800 800 1020 Inthe UK call 0808 2380000 n Europe call 44 0 870 8501241 GHP 20 Installation Instructions Importan
13. PS device can be connected to the NMEA 2000 network GHC 20 Mounting Considerations NOTICE The mounting surface must be flat to avoid damaging the device when it is mounted The mounting location should provide optimal viewing as you operate your vessel The mounting location should allow easy access to the keys on the GHC 20 The mounting surface must be strong enough to support the weight of the GHC 20 and protect it from excessive vibration or shock The area behind the surface must allow room for the routing and connection of the cables There should be at least a 3 inch 8 cm clearance behind the case of the GHC 20 The location must be at least 81 4 in 209 mm from a magnetic compass to avoid interference The location must be in an area that is not exposed to extreme temperature conditions page 15 GHC 20 Connection Considerations You must connect the GHC 20 to the NMEA 2000 network Optional NMEA 0183 compatible devices such as a GPS device can be connected to the GHC 20 data cable page 10 GHP 20 General Connection Diagram Refer to this diagram for component interconnection reference only Follow the detailed installation instructions for each component starting on page 7 o Item Description Important Considerations GHC 20 2000 netw
14. and Needed Tools The GHP 20 autopilot system consists of multiple components Familiarize yourself with all of the components before beginning installation You must know how the components operate together in order to correctly plan the installation on your boat As you familiarize yourself with the GHP 20 components confirm that your package includes the components identified below If any parts are missing contact your Garmin dealer immediately Record the serial number of each component in the space provided Main Components The GHP 20 autopilot system consists of two main components the Course Computer Unit CCU and the GHC 20 user control interface CCU The CCU acts as the brain of the GHP 20 The CCU contains the sensory equipment used to determine heading The CCU connects to the steering system of your boat The CCU also connects to a NMEA 2000 network to communicate with the GHC 20 and to optional NMEA 2000 compatible GPS devices page 8 Serial Number GHC 20 7 fa GARMIN 6 M J The GHC 20 is the primary interface used to operate the GHP 20 autopilot system Using the GHC 20 you engage and steer the GHP 20 You also set up and customize the GHP 20 using the GHC 20 The GHC 20 connects to a NMEA 2000 network to communicate with the CCU The GHC 20 also connects with optional NMEA 2000 compatible devices such as a GPS device to use advanced features of
15. ctions the CCU Route the five pin connector end of the steering controller cable to the steering system access location on your boat page 7 2 Route the orange and blue wires to the location where you plan to install the alarm page 7 If the cable is not long enough extend the appropriate wires with 28 AWG 08 mm wire Alarm Installation The alarm audibly alerts you to important GHP 20 events To install the alarm you must mount it to your boat page 7 and connect it to the CCU page 7 Mounting the Alarm Before you can mount the alarm you must select a mounting location page 5 Secure the alarm with cable ties or other appropriate mounting hardware not included Connecting the Alarm 1 Route the alarm cable to the bare wire end of the steering controller cable If the cable is not long enough extend the appropriate wires with 28 AWG 08 mm wire 2 Connect the cables based on the table below Alarm Wire Steering Controller Cable Wire Color Color White Orange Black Blue 3 Solder and cover all bare wire connections Connecting the GHP 20 to the Steering System of the Boat NOTICE Do not connect the steering controller cable to a NMEA 2000 network The GHP 20 requires a powered CAN bus to communicate with the steering controller Ensure that the steering controller CAN bus is properly powered and terminated Consult the boat manufacturer if
16. ensors on the autopilot and it is extremely important to complete the wizard in conditions appropriate for your boat Important Sea Trial Wizard Considerations Complete the Sea Trial Wizard in calm water The nature of calm water is relative to the size and shape of your boat Ensure your boat does not rock while sitting still or moving very slowly Ensure your boat is not significantly affected by the wind Keep the weight on your boat balanced DO NOT move around on the boat while completing any of the steps in the Sea Trial Wizard Starting the Sea Trial Wizard Before you start the Sea Trial Wizard you must drive to an open area of calm water 1 Turn on the GHP 20 2 Select an option Ifthe Sea Trial Wizard starts automatically proceed to step 3 Ifthe Sea Trial Wizard does not start automatically select Menu gt Setup gt Dealer Autopilot Configuration gt Wizards gt Sea Trial Wizard 3 Select Begin Performing the Sea Trial Wizard 1 Drive your boat to an open area of calm water Start the Sea Trial Wizard page 12 Configure the planing RPM page 12 Calibrate the compass page 12 Perform the autotune procedure page 12 Set north page 12 If necessary set the fine heading adjustment page 12 tA fF the Planing RPM Note the RPM reading from the tachometer on the dashboard of your boat at the point your boat transitions from displacement to planing s
17. in View 130306 Wind Data CCU Type PGN Description Receive 059392 ISO Acknowledgment 059904 ISO Request 060928 ISO Address Claim 126208 NMEA Command Request Acknowledge Group Function 126464 Transmit Receive PGN List Group Function 126996 Product Information 127258 Magnetic Variation 127488 Engine Parameters Rapid Update 129025 Position Rapid Update 129026 COG amp SOG Rapid Update 129283 Cross Track Error 129284 Navigation Data GHP 20 Installation Instructions NMEA 0183 Information Category Setting Description When connected to optional NMEA 0183 compatible devices the Rudder Gains Low Speed Allows you to set the rudder GHC 20 uses the following NMEA 0183 sentences Gain gain for low speeds This setting applies to the Sentence vessel when operating below Receive wpl planing speed gga If you set this value too grme high the autopilot may gsa be overactive attempting to constantly adjust the 98 heading at the slightest rmc deviation bod Rudder Gains Low Speed Allows you to set the rudder bwc Counter gain counter correction for dtm low speeds gi This setting applies to the vessel when operating below rmb planing speed vhw If you set this value too low mwv the autopilot may overshoot xte the desired heading on Transmit hd turns If you set th
18. ing North Before you can set north you must have at least 45 seconds of hazard free open water available This procedure appears only if you connect an optional GPS device to the GHP 20 page 10 and the device has acquired a GPS position If you do not have a GPS device connected you are prompted to set the fine heading adjustment page 12 1 Drive the boat in a straight line at cruising speed parallel to the prevailing wind and current for 45 seconds 2 Select Begin 3 Select an option Ifthe calibration completed successfully select Done Ifthe calibration failed repeat steps 1 2 Setting the Fine Heading Adjustment This procedure appears only if you do not have an optional GPS device connected to the GHP 20 page 10 If you do have a GPS device installed on your boat that has acquired a GPS position you are prompted to set north instead page 12 1 Using a handheld compass identify north 2 Adjust the fine heading setting until it matches north on the magnetic compass 3 Select Done Evaluating the Results of the Autopilot Configuration 1 Test the autopilot at a slow speed 2 If necessary adjust the gain setting page 13 3 Test the autopilot at a higher speed normal operating conditions 4 If necessary adjust the gain and acceleration limiter settings Testing and Adjusting the Autopilot Configuration 1 Drive the boat in one direction with the autopilot engaged heading hold The boat sho
19. ion longer receiving e Autopilot transitions while following a Route To data Autopilot placed valid navigation data to heading hold pattern in heading hold while performing a If this value is too high the Route To autopilot can oscillate back This message will and forth across the course also be shown if line over long distances navigation is stopped If this value is too low the on a chartplotter prior autopilot may respond slowly to disengaging the in eliminating cross track autopilot error Connection with The GHC lost N A Navigation Setup Navigation Allows you to adjust the autopilot lost connection with CCU Trim Gain acceptable amount of long Low GHC supply The supply voltage N A term cross track error while voltage level is below the following a Route To pattern value specified in the Only adjust this setting after low voltage alarm the navigation gain has been menu set Lost Communication The autopilot lost Alarm sounds If this value is too With Steering connection with the fe Autopilot transitions high the autopilot will Controller boat steering system to standby overcompensate for cross while the autopilot track error was engaged If this value is too low the No Steering The autopilot cannot Alarm sounds Autopilot transitions to standby Steering Controller Not Supported The steering system of the boat is not compatible with the installed version of the GHP 20 Alarm sounds Autopilot transit
20. ions to standby GHP 20 Installation Checklist Detach this checklist from the installation instructions and use it to assist with the GHP 20 installation process Read all installation instructions before installing the GHP 20 Contact Garmin Product Support if you have any questions during the installation process 1 Refer to the diagram and notes starting on page 6 to understand the necessary electrical and data connections 2 Lay out all of the components first Check the cable lengths Obtain extensions if necessary AT 3 Mount the CCU by following the directions starting on page 5 Mount the CCU in a location free of magnetic interference Use a handheld compass to test for magnetic interference in the area Mount the CCU in the bracket so that the wires hang straight down 4 Mount the GHC 20 by following the directions starting on page 5 5 Connect the CCU to the steering system of the boat using the steering controller cable page 7 6 Connect the GHC 20 and the CCU to a NMEA 2000 network Connect an optional NMEA 2000 compatible GPS device to the NMEA 2000 network page 8 7 Connect an optional NMEA 0183 compatible GPS device to the GHC 20 if a NMEA 2000 compatible GPS device is not available page 10 8 Configure the GHP 20 system page 11 OOL CCU Mounting Template Up when installing on a vertical surface GHP 20 Installation Instructions 19 2013 Garmin Ltd or i
21. is value 9 too high the autopilot may be slow to complete turns GHP 20 Configuration Settings Rudder Gains High Speed Allows you to set the rudder Although all of the configuration is typically completed automatically Gain gain for high speeds through the wizard you can manually adjust any setting page 13 This setting applies to the vessel when operating NOTE Depending upon the configuration of the autopilot certain above planing speed settings may not appear If you set this value too high the autopilot may Category Setting Description be overactive attempting Speed Source Setup Verify Allows you to compare to constantly adjust the Tachometer the RPM readings on heading at the slightest the GHC 20 with the deviation tachometers on the Rudder Gains High Speed Allows you to set the rudder dashboard of your boat Counter gain counter correction for Speed Source Setup Planing RPM Allows you to adjust the high speeds RPM reading on the This setting applies to the GHC 20 at the point your vessel when operating boat transitions from above planing speed displacement to planing If you set this value too low speed If the value does the autopilot may overshoot not match the value on the the desired heading on GHC 20 use the arrows to tums If you set this value adjust the value too high the autopilot may Speed Source Setup Low RPM Allows you to adjust lowest De slow TO COMPIEIG Limit RPM point of your boat
22. n run the wizard again at any time To access the wizard enable the advanced configuration procedure page 13 Manually Defining Individual Configuration Settings 1 Enable the advanced configuration procedure page 13 2 From the Heading screen select Menu gt Setup gt Dealer Autopilot Configuration 3 Select the setting category 4 Select a setting to configure Descriptions of each setting are available in the appendix page 16 5 Configure the value of the setting NOTE Configuring certain settings in the dealer autopilot configuration procedure may require you to modify other settings Review the GHP 20 Configurations Settings section page 16 prior to modifying any settings Appendix Wire GHC 20 Wire NMEA 0183 Compatible Device Wire Color Function Function NMEA 0183 Connection Diagrams NA Power The following three connection diagrams are examples of different NMEA 0183 ground situations you may encounter when connecting your NMEA 0183 Blue Tx A Rx device to the GHC 20 White unconnected N A Example One of Three Two way NMEA 0183 Communication Brown RX A Tx A Green Rx B Tx B je k NOTE When connecting a NMEA 0183 device with only
23. needed The steering controller cable allows the GHP 20 Autopilot System to communicate with the steering system of the boat If needed consult the manufacturer of your boat for assistance locating the steering system access 1 Locate the steering system access location for your boat 2 Connect the steering controller cable from the CCU to the steering system If you need to lengthen the steering controller cable use a NMEA 2000 extension cable GHC 20 Installation Install the GHC 20 by flush mounting it in the dashboard near the helm and connecting it to a NMEA 2000 network To use advanced features of the GHP 20 optional NMEA 2000 compatible or NMEA 0183 compatible GPS devices can be connected to the NMEA 2000 network or connected to the GHC 20 through NMEA 0183 Mounting the GHC 20 NOTICE The temperature range for the GHC 20 is from 5 to 158 F from 15 C to 70 C Extended exposure to temperatures outside of this range in storage or operating conditions may cause failure of the LCD screen or other components This type of failure and related consequences are not covered by the manufacturer s limited warranty If you are mounting the GHC 20 in fiberglass when drilling the four pilot holes it is recommended to use a countersink bit to drill a clearance counterbore through only the top gel coat layer This will help to avoid any cracking in the gel coat layer when the screws are tightened Stainless
24. ompatible GPS device can be connected to the NMEA 2000 network For more information on NMEA 2000 go to www garmin com GHP 20 Installation Instructions Connecting the GHC 20 to an Existing NMEA 2000 Network 1 Determine where to connect the GHC 20 to your existing NMEA 2000 backbone page 5 7 MIN me 0 Disconnect one side of a NMEA 2000 T connector from the network If necessary to extend the NMEA 2000 network backbone connect a NMEA 2000 backbone extension cable not included to the side of the disconnected T connector Add the included T connector for the GHC 20 to the NMEA 2000 backbone by connecting it to the side of the disconnected T connector or backbone extension cable Route the included drop cable O to the bottom of the T connector added in step 4 and connect it to the T connector If the included drop cable is not long enough you can use a drop cable up to 20 ft 6 m long not included Connect the drop cable to the to the GHC 20 Connect the drop cable to the T connector you added in step 3 and to the GHC 20 GHP 20 Installation Instructions Connecting the CCU to an Existing NMEA 2000 Network 1 Determine where to connect the CCU to your existing NMEA 2000 backbone page 5 OOOO
25. on 5 Mounting and Connection Considerations 5 CCU Mounting Considerations is CCU Connection Considerations Alarm Mounting Considerations sss Alarm Connection Considerations NMEA 2000 Connection Considerations GHC 20 Mounting Considerations GHC 20 Connection Considerations T GHP 20 General Connection Installation Procedures sss 7 CCU Installation sns Installing the CCU Mounting Securing the CCU in the CCU Bracket Connecting the CCU sess eee Alarm Installation s s Mounting the Alarm ssssss m Connecting the AIF n Fr nme Connecting the GHP 20 to the Steering System of the Boat 7 GHC 20 Installatlori i aiii rerit triremes Mounting the GHC 20 sss Connecting the GHC 20 sss Multiple GHC 20 Considerations Connecting the Devices to a NMEA 2000 Network Connecting the GHC 20 to an Existing NMEA 2000 Network Connecting the CCU to an Existing NMEA 2000 Network Building a Basic NMEA 20
26. ork The GHC 20 and the CCU must be connected to the NMEA 2000 network using the included T connectors page 8 If there is not an existing NMEA 2000 network on your boat you can build one using the supplied cables and connectors page 10 NMEA2000 power cable This cable should be installed only if you are building a NMEA 2000 network Do not install this cable if there is an existing NMEA 2000 network on your boat page 10 The NMEA 2000 power cable must be connected to a 9 16 Vdc power source CCU Mount the CCU with the cables pointing straight down page 7 Steering controller cable Steering system access The steering system access may look like a NMEA 2000 network but the steering controller cable can only be connected to the steering system access and not the NMEA 2000 network page 7 The connection varies based on the steering controller manufacturer See the steering controller documentation or www garmin com for more information Wire the steering controller cable to the alarm page 7 a GHP 20 Installation Instructions Installation Procedures After you have completely planned the GHP 20 installation on your boat and have satisfied all the mounting and connecting considerations for your particular installation you can begin mounting and connecting the components CCU Installation To install the CCU you must mount it to your boat page 7 connect it to the steering system of
27. peed 2 Ifthe tachometer value does not match the value on the GHC 20 use the arrows to adjust the value 3 Select Done oe the Compass Drive your boat at slow idle speed in a straight line 2 Select Begin and continue to drive in a straight line 3 When instructed turn the boat slowly clockwise taking care to make the turn as steady and flat as possible Turn slowly so that the boat DOES NOT list The GHC 20 displays a completion message when the calibration is complete 4 Select an option Ifthe calibration completes successfully select Done Ifthe calibration fails select Retry and repeat steps 1 3 Performing the Autotune Procedure Before you can perform the autotune procedure you must have a large stretch of open water available 1 Adjust the throttle so the boat travels below planing speed 2 Select Begin The boat performs a number of zigzag motions while the Autotuning is in progress The GHC 20 displays a completion message 3 Select an option Ifthe autotune completed successfully select Done and take manual control of the boat Ifthe autotune failed adjust the throttle and select Retry Autotune 4 Ifautotune fails repeat steps 1 3 until the autotune completes successfully 5 Ifthe autotune procedure continues to fail after you reach maximum cruising speed reduce your speed to the initial autotune speed and select Alternate Autotune to begin an alternate autotuning procedure Sett
28. plied screws are not suitable for the mounting surface CCU Connection Considerations NOTICE Do not connect the steering controller cable to a NMEA 2000 network The GHP 20 requires a powered CAN bus to communicate with the steering controller Ensure that the steering controller CAN bus is properly powered and terminated Consult the boat manufacturer if needed The steering controller cable connects the CCU to the steering controller of the boat and provides 9 5 ft 3 m of cable between the CCU and the steering controller access If needed you should consult the manufacturer of your boat for assistance locating the steering system access Ifthe CCU cannot be mounted within 9 5 ft 3 m ofthe steering controller access of the boat NMEA 2000 cables can be used to extend the connection steering controller cable must not be cut GHP 20 Installation Instructions Alarm Mounting Considerations The alarm should be mounted near the helm station The alarm can be mounted under the dashboard Alarm Connection Considerations f needed the alarm wires can be extended with 28 AWG 08 mm wire NMEA 2000 Connection Considerations The CCU and the GHC 20 connect to the NMEA 2000 network If your boat does not have a NMEA 2000 network one can be built using the included NMEA 2000 cables and connectors page 10 To use advanced features of the GHP 20 an optional NMEA 2000 compatible G
29. ppear on the GHC 20 proceed to the next step If your steering system sends tachometer information to the autopilot it will be automatically selected and no NMEA 2000 tachometer or GPS speed source needs to be selected Select an option e If you connected a NMEA 2000 compatible engine or engines to the NMEA 2000 network select NMEA 2000 ftachometer data is unavailable or unusable select GPS data as a speed source When GPS data is used as a speed source the maximum speed for all vessel types must be configured Ifyou did not connect a speed source select None If the autopilot does not perform well using None as the speed source Garmin recommends connecting a tachometer or GPS as the speed source Verifying the Tachometer This step may not apply to all boats If it does not appear on the GHC 20 proceed to the next step With the engine or engines running compare the RPM readings on the GHC 20 with the tachometer or tachometers on the dashboard of your boat Reviewing the Results of the Dockside Wizard The GHC 20 displays the values you chose when you ran the Dockside Wizard Examine the results of the dockside wizard Select any incorrect value and select Select Correct the value Repeat steps 2 and 3 for all incorrect values gt WY When you are finished reviewing the values select Done About the Sea Trial Wizard The Sea Trial Wizard configures the fundamental s
30. ration Procedure Advanced configuration options are not available on the GHC 20 under normal conditions To access the advanced configuration settings of the GHP 20 enable the advanced configuration procedure Enabling the Advanced Configuration Procedure 1 From the heading screen select Menu gt Setup gt System gt System Information 2 Press and hold the center soft key for 5 seconds Dealer Mode appears C 3 Press Back gt Back If the option for Dealer Autopilot Configuration is available on the Setup screen the advanced configuration procedure is enabled Advanced Configuration Settings You can run the Autotune automated configuration process calibrate the compass and define north on the GHP 20 through the GHC 20 without running the wizards You can also define most settings individually without running the configuration processes Manually Running the Automated Configuration Procedures 1 Enable the advanced configuration procedure page 13 2 From the Heading screen select Menu gt Setup gt Dealer Autopilot Configuration gt Automated Setup 3 Select Autotune Calibrate Compass or Set North 4 Follow the on screen instructions Manually Running the Sea Trial Wizard The Sea Trial Wizard allows you to quickly define all of the important configuration settings on the GHP 20 After running the wizard if you do not feel the GHP 20 is working correctly you ca
31. se the setting if the autopilot turns too quickly e Decrease the setting if the autopilot turns too slowly 4 Test the autopilot configuration 5 Repeat steps 2 and 3 until the GHP 20 performance is satisfactory Adjusting the Autopilot Gain Settings NOTE When you manually adjust the rudder gain or counter gain make relatively small adjustments and adjust only one value at a time Test the change before making additional adjustments 1 Enable the advanced configuration procedure page 13 2 On GHC 20 select Menu gt Setup gt Dealer Autopilot Configuration gt Autopilot Tuning gt Rudder Gains 3 Select an option Select Low Speed or High Speed and use the arrows on the GHC 20 to adjust how tightly the rudder holds the heading and makes turns at low speed or high speed If you set this value too high the autopilot may be overactive attempting to constantly adjust the heading at the slightest deviation An overactive autopilot can cause excess wear and tear on the drive unit and drains the battery at a faster than normal rate Select Low Speed Counter or High Speed Counter to adjust how tightly the rudder corrects the turn overshoot If you set this value too high the autopilot can overshoot the turn again when attempting to counter the original turn 4 Test the autopilot configuration 5 Repeat steps 2 and 3 until the GHP 20 performance is satisfactory GHP 20 Installation Instructions Advanced Configu
32. t Safety Information You are responsible for the safe and prudent operation of your vessel The GHP 20 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 20 on calm and hazard free open water Use caution when operating the GHP 20 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 fire enclosure or be provided with a fire 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 Table of Contents 20 Steer by Wire Installation Instructions 1 Registering the Device sss 1 Contacting Garmin Product 1 Important Safety Information se 1 GHP 20 Package Contents and Needed Tools 3 Main Comporents retirer ede rre e o Installati
33. table below GHC 20 Data Cable Wire Color Function Blue Tx A White Tx B Brown Rx A Green RxB Three examples of various connection situations are provided in the appendix page 14 3 If necessary use 22 AWG 33 mn twisted pair wire for extended runs of wire 4 Solder and cover all bare wire connections GHP 20 Installation Instructions Configuring the GHP 20 The GHP 20 must be configured and tuned to your boat dynamics and motor configuration Use the dockside wizard if applicable and the sea trial wizard on the GHC 20 to configure the GHP 20 These wizards will walk you through the necessary configuration steps About the Dockside Wizard NOTICE If you perform the dockside wizard while your boat is out of the water provide rudder movement clearance to avoid damage to the rudder or other objects You can complete the dockside wizard while your boat is in or out of the water If your boat in the water it must be stationary while you complete the wizard Performing the Dockside Wizard NOTICE Not all of the steps listed in this section may apply to your boat If one of the steps listed as if applicable does not appear on the GHC 20 proceed to the next step 1 Turn on the GHP 20 The first time you turn on the GHP 20 you are prompted to complete a short setup sequence on the GHC 20 Ifnecessary complete the setup sequence Start the dockside wi
34. tallation Mounting and Connection Considerations The GHP 20 components connect to each other and to power using the included cables Ensure that the correct cables reach each component and that each component is in an acceptable location before mounting or connecting any components CCU Mounting Considerations The CCU must be mounted in the forward half of the boat no higher than 10 ft 3 m above the waterline The CCU must not be mounted in a location where it will be submerged or exposed to wash down The CCU must not be mounted near magnetic material magnets speakers and electric motors or high current wires The CCU must be mounted at least 24 in 0 6 m away from movable or changing magnetic disturbances such as anchors anchor chain wiper motors and tool boxes handheld compass should be used to test for magnetic interference in the area where the CCU is to be mounted If the handheld compass does not point north when you hold it in the location where you intend to mount the CCU there is magnetic interference Choose another location and test again The CCU can be mounted below the waterline if it is not in a location where it will be submerged or exposed to wash down The CCU bracket must be mounted on a vertical surface or under a horizontal surface so that the connected wires hang straight down Mounting screws are included with the CCU but you may need to provide different screws if the sup
35. the GHP 20 If NMEA 2000 compatible devices are not available you can connect the GHC 20 to optional NMEA 0183 compatible devices instead Serial Number GHP 20 Installation Instructions Cables and Connectors The GHP 20 autopilot system includes multiple cables These cables connect the components to power to each other to an alarm and to optional devices Steering Controller Cable NOTICE Do not connect the steering controller cable to a NMEA 2000 network The GHP 20 requires a powered CAN bus to communicate with the steering controller Ensure that the steering controller CAN bus is properly powered and terminated Consult the boat manufacturer if needed This cable connects the CCU to the steering system of the boat A portion of this cable contains color coded wires with bare ends These wires connect the CCU to the alarm Alarm The alarm provides audible alerts from the GHP 20 page 7 GHC 20 NMEA 0183 Data Cable This cable can be used to connect the GHC 20 to optional NMEA 0183 compatible devices page 10 m M NMEA 2000 Cables and Connectors The NMEA 2000 cables connect the CCU and the GHC 20 to the NMEA 2000 network Either connect the CCU and the GHC 20 to an existing NMEA 2000 network using the included T connectors and drop cables or use all of the included NMEA 2000 cables and connectors to build a NMEA 2000 network on your boat if needed page 8
36. ts subsidiaries All rights reserved Except as expressly provided herein no part of this manual may be reproduced copied transmitted disseminated downloaded or stored in any s without the express prior written consent of Garmin Garmin hereby grants permission to download a single copy of this manual onto a hard drive or other electronic orage medium for any purpose storage medium to be viewed and to print one copy of this manual or of any revision hereto provided that such electronic or printed copy of this manual must contain the complete text of this copyright notice and provided further that any unauthorized commercial distribution of this manual or any revision hereto is strictly prohibited Information in this document is subject to change without notice Garmin reserves the right to change or improve its products and to make changes in the content wit hout obligation to notify any person or organization of such changes or improvements Visit the Garmin Web site www garmin com for current updates and supplemental information concerning the use and operation of this and other Garmin products Garmin and the Garmin logo are registered trademarks of Garmin Ltd or its subsidiaries registered in the USA and other countries and myGarmin or its subsidiaries These trademarks may not be used without the express permission of Garmin NMEA 2000 is a registered trademark of the National Marine Elec April 2013
37. u are mounting the GHC 20 in fiberglass use a countersink bit as advised in the Notice 10 Remove the remainder of the template 11 Place the included gasket on the back of the device and apply marine sealant around the gasket to prevent leakage behind the dashboard 12 Place the GHC 20 into the cutout 13 Securely fasten the GHC 20 to the mounting surface using the supplied screws If you are mounting the GHC 20 in fiberglass use a anti galling lubricant as advised in the Notice Connecting the GHC 20 Connect the GHC 20 to the NMEA 2000 network using the included NMEA 2000 drop cable page 8 Multiple GHC 20 Considerations You can install multiple GHC 20 devices sold separately to control the autopilot from different locations on the boat All additional 20 devices must be connected to the NMEA 2000 network page 8 Connecting the Devices to a NMEA 2000 Network NOTICE If you have an existing NMEA 2000 network on your boat it should already be connected to power Do not connect the included NMEA 2000 power cable to an existing NMEA 2000 network because only one power source should be connected to a NMEA 2000 network You can connect the GHC 20 to the CCU through an existing NMEA 2000 network If you do not have an existing NMEA 2000 network on your boat all the parts needed to build one are supplied in the GHP 20 package page 10 To use advanced features of the GHP 20 an optional NMEA 2000 c
38. uld not oscillate significantly however a small amount of oscillation is normal GHP 20 Installation Instructions 2 Turn the boat in one direction using the autopilot and observe the behavior The boat should turn smoothly not too quickly or too slowly When you turn the boat using the autopilot the boat should approach and settle on the desired heading with minimal overshoot and oscillation 3 Select an option Ifthe boat turns too quickly or too sluggishly adjust the autopilot acceleration limiter page 13 Ifthe heading hold oscillates significantly or the boat does not correct when turning adjust the autopilot gain page 13 Ifthe boat turns smoothly the heading hold oscillates only slightly or not at all and the boat adjusts the heading correctly proceed to step 5 4 Repeat steps 2 and 3 until the boat turns smoothly the heading hold oscillates only slightly or not at all and the boat adjusts the heading correctly 5 For planing vessels repeat steps 1 4 at faster speeds page 13 Adjusting the Acceleration Limiter Settings NOTE When you manually adjust the acceleration limiter make relatively small adjustments Test the change before making additional adjustments 1 Turn on the GHP 20 using the advanced configuration procedure page 13 2 On the GHC 20 select Menu gt Setup gt Dealer Autopilot Configuration gt Autopilot Tuning gt Acceleration Limiter 3 Select an option e Increa
39. your boat page 7 connect it to a NMEA 2000 network page 8 and connect it to the alarm page 7 Installing the CCU Mounting Bracket Before you can mount the CCU you must select a location and determine the correct mounting hardware page 5 The CCU bracket has two portions the mounting portion and the securing portion 1 Cut out the mounting template provided on page 19 2 Tape the template to the mounting location If you are installing the CCU on a vertical surface install the mounting portion of the bracket with an opening at the bottom 3 Drill pilot holes at the three mounting locations 4 Use screws O to secure the mounting portion of the CCU bracket Securing the CCU in the CCU Bracket 1 Connect the steering controller cable and the NMEA 2000 drop cable to the CCU 2 Place the CCU in the mounting portion of the CCU bracket with the wires hanging straight down 3 Place the securing portion of the bracket over the ball and snap it into the mounting portion of the bracket starting with the two arms O that do not have the thumbscrew 1 4 With the cables hanging straight down connect the arm with the thumbscrew The cables must hang straight down for the CCU to accurately read your heading 5 Hand tighten the thumbscrew until the CCU is held firmly in the bracket Do not overtighten the thumbscrew GHP 20 Installation Instru
40. zard page 11 If applicable select the vessel type If applicable test the steering direction page 11 gt N Ifapplicable select the speed source and verify the tachometer page 11 7 Review the wizard results page 11 Starting the Dockside Wizard This step may not apply to all boats If it does not appear on the GHC 20 proceed to the next step 1 After you complete the initial setup select an option Ifthe dockside wizard starts automatically proceed to step 2 Ifthe dockside wizard does not start automatically select Menu gt Setup gt Dealer Autopilot Configuration gt Wizards gt Dockside Wizard 2 Select Begin Testing the Steering Direction This step may not apply to all boats If it does not appear on the GHC 20 proceed to the next step 1 Use the arrows on the GHC 20 to test the steering direction When you select the right arrow the rudder should turn so that the boat would steer to the right and when you select the left arrow the rudder should turn so that the boat would steer to the left N Select Continue GHP 20 Installation Instructions 3 Select an option Ifthe steering test turns the boat in the correct direction select Yes Ifthe steering test turns the boat in the opposite direction select No 4 f you selected No in step 3 repeat steps 1 2 Selecting the Speed Source This step may not apply to all boats If it does not a
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