Garmin GHP Reactor Hydraulic Autopilot Installation Instructions - Page 9

position. During this procedure, the autopilot uses the GPS heading information to calibrate north on the autopilot system. If you do not have a GPS device connected, you are prompted to set the fine heading adjustment instead (Setting the Fine Heading Adjustment). 1 Drive your boat at cruising speed in a straight line. 2 Select an option: • If you are performing this procedure as part of the Sea Trial Wizard, select Begin. • If you are performing this procedure outside of the Sea Trial Wizard, from the heading screen, select Menu > Setup > Dealer Autopilot Setup > Compass Setup > Set North > Begin. 3 Continue to drive the boat at cruising speed in a straight line and follow the on-screen instructions. 4 Select an option: • If the calibration completes successfully, select Done. • If the calibration is not successful, repeat steps 1 through 3. Setting the Fine Heading Adjustment This procedure appears only if you do not have an optional GPS device connected to the autopilot (Connecting Optional NMEA 2000 Devices to the Autopilot System). If the autopilot is connected to a GPS device that has acquired a GPS position, you are prompted to set north instead (Setting North). 1 Using a handheld compass, identify north. 2 Select an option: • If you are performing this procedure as part of the Sea Trial Wizard, adjust the fine heading setting until it matches north on the magnetic compass. • If you are performing this calibration outside of the Sea Trial Wizard, from the heading screen, select Menu > Setup > Dealer Autopilot Setup > Compass Setup > Fine Heading Adjustment, and adjust the fine heading setting until it matches north on the magnetic compass. 3 Select Done. Testing and Adjusting the Configuration NOTICE Test the autopilot at a slow speed. After the autopilot has been tested and adjusted at a slow speed, test it at a higher speed to simulate normal operating conditions. 1 Drive the boat in one direction with the autopilot engaged (heading hold). The boat may oscillate slightly, but it should not oscillate significantly. 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: • If the boat turns too quickly or too sluggishly, adjust the autopilot acceleration limiter (Adjusting the Acceleration Limiter Settings). • If the heading hold oscillates significantly or the boat does not correct when turning, adjust the autopilot gain (Adjusting the Autopilot Gain Settings). • If the boat turns smoothly, the heading hold oscillates only slightly or not at all, and the boat adjusts the heading correctly, the configuration is correct, and no further adjustments are necessary. Adjusting the Acceleration Limiter Settings 1 Enable Dealer Mode (Enabling Dealer Configuration). 2 Select Menu > Setup > Dealer Autopilot Setup > Autopilot Tuning > Acceleration Limiter. 3 Select an option: • Increase the setting if the autopilot turns too quickly. • Decrease the setting if the autopilot turns too slowly. When you manually adjust the acceleration limiter, make relatively small adjustments. Test the change before making additional adjustments. 4 Test the autopilot configuration. 5 Repeat steps 3-4 until the autopilot performance is satisfactory. Adjusting the Autopilot Gain Settings 1 Enable Dealer Mode (Enabling Dealer Configuration). 2 Select Menu > Setup > Dealer Autopilot Setup > Autopilot Tuning > Rudder Gains. 3 Select an option based on the type of boat: • If you have a sailboat, a displacement-hull powerboat, or a powerboat with the speed source set to None, select Gain and adjust how tightly the rudder holds the heading and makes turns. If you set this value too high, the autopilot may be overactive and attempt to constantly adjust the heading at the slightest deviation. An overactive autopilot can drain the battery at a faster-than-normal rate. • If you have a sailboat, a displacement-hull powerboat, or a powerboat with the speed source set to None, select Counter Gain and adjust how tightly the rudder corrects the turn overshoot. If you set this value too low, the autopilot can overshoot the turn again when it attempts to counter the original turn. • If you have a planing-hull powerboat with the speed source set to Tach. - NMEA 2000 or Proprietary or GPS, select Low Speed or High Speed and 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 and attempt to constantly adjust the heading at the slightest deviation. An overactive autopilot can drain the battery at a faster-than-normal rate. • If you have a planing-hull powerboat with the speed source set to Tach. - NMEA 2000 or Proprietary or GPS, select Low Speed Counter or High Speed Counter to adjust how tightly the rudder corrects the turn overshoot. If you set this value too low, the autopilot can overshoot the turn again when it attempts to counter the original turn. 4 Test the autopilot configuration, and repeat steps 2 and 3 until the autopilot performance is satisfactory. Advanced Configuration Advanced configuration options are not available on the helm control under normal conditions. To access the advanced configuration settings of the autopilot, you must first enable Dealer Mode (Enabling Dealer Configuration). Enabling Dealer Configuration 1 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 Setup is available on the Setup screen, the procedure was successful. 9