Garmin GHP 20 Marine Autopilot System with SmartPump Installation Instructions Manual

Also see for GHP 20 Marine Autopilot System for Steer-by-Wire: Product information Owner's manual Installation instructions

Contents

Garmin GHP 20 Marine Autopilot System with SmartPump Installation Instructions Manual Manual pdf 17 page image

• If you have a powerboat, select Low Speed or HighSpeed and adjust how tightly the rudder holds theheading and makes turns at low speed or high speed.If you set this value too high, the autopilot may beoveractive, attempting to constantly adjust the heading atthe slightest deviation. An overactive autopilot can drainthe battery at a faster-than-normal rate.• If you have a powerboat, select Low Speed Counter orHigh Speed Counter to adjust how tightly the ruddercorrects the turn overshoot.If you set this value too high, the autopilot can overshootthe turn again when attempting to counter the originalturn.4 Test the autopilot configuration, and repeat steps 2–3 untilthe autopilot performance is satisfactory.Advanced ConfigurationAdvanced configuration options are not available on the helmcontrol under normal conditions. To access the advancedconfiguration settings of the autopilot, you must first enableDealer Mode (page 17).Enabling Dealer Configuration1 From the heading screen, select Menu > Setup > System >System Information.2 Hold the center key for 5 seconds.Dealer Mode appears.3 Select Back > Back.If the option for Dealer Autopilot Configuration is available onthe Setup screen, the procedure was successful.Advanced Configuration SettingsYou can run the autotune process, calibrate the compass, anddefine north on the autopilot without running the wizards. Youcan also define each setting individually, without running theconfiguration processes.Running the Automated Configuration Processes Manually1 Enable Dealer Mode (page 17).2 From the heading screen, select Menu > Setup > DealerAutopilot Configuration > Automated Setup.3 Select Calibrate Compass, Set North, or Autotune.4 Follow the on-screen instructions.Defining Individual Configuration Settings ManuallyConfiguring certain configuration settings may require you tomodify other settings. Review the "Detailed ConfigurationSettings" section (page 19) prior to modifying any settings.1 Enable Dealer Mode (page 17).2 From the heading screen, select Menu > Setup > DealerAutopilot Configuration.3 Select a setting category.4 Select a setting to configure.Descriptions of each setting are available in the appendix(page 19).5 Configure the value of the setting.AppendixNMEA 0183 Connection DiagramsThese wiring diagrams are examples of different situations youmay encounter when connecting your NMEA 0183 device to thehelm control.Two-Way NMEA 0183 Communication>>>>>>>>À NMEA 2000 network (provides power to the helm control)Á 12 Vdc power sourceÂ Helm controlÃ NMEA 0183-compatible deviceWire Helm Control Wire Color —FunctionNMEA 0183-CompatibleDevice Wire FunctionÊ N/A PowerË N/A NMEA 0183 groundÌ Blue — Tx/A (+) Rx/A (+)Í White — Tx/B (-) Rx/B (-)Î Brown — Rx/A (+) Tx/A (+)Ï Green — Rx/B (-) Tx/B (-)NOTE: When connecting a NMEA 0183 device with twotransmitting and two receiving lines, it is not necessary for theNMEA 2000 bus and the NMEA 0183 device to connect to acommon ground.Only One Receiving WireIf your NMEA 0183-compatible device has only one receivingwire (Rx), it must be connected to the blue wire (Tx/A) from thehelm control, and the white wire (Tx/B) from the helm controlmust remain unconnected.> >>>>>À NMEA 2000network (provides power to the helm control)Á 12 Vdc power sourceÂ Helm controlÃ NMEA 0183-compatible deviceWire Helm Control Wire Color —FunctionNMEA 0183-CompatibleDevice Wire FunctionÊ N/A PowerË N/A NMEA 0183 groundÌ Blue — Tx/A (+) RxÍ White — unconnected N/AÎ Brown — Rx/A (+) Tx/A (+)Ï Green — Rx/B (-) Tx/B (-)NOTE: When connecting a NMEA 0183 device with only onereceiving (Rx) line, the NMEA 2000 bus and the NMEA 0183device must be connected to a common ground.Only One Transmitting WireIf your NMEA 0183-compatible device has only one transmittingwire (Tx), it must be connected to the brown wire (Rx/A) from17