Furuno 520, 511 manual Principle of the Autopilot, Principle of Autopilot

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1.PRINCIPLE OF THE AUTOPILOT

Principle of Autopilot

An autopilot is an automatic device for steering a vessel and maintaining its heading in an intended direction. Boat and ship operators can really appreciate the advantages of the autopilot – It steers the boat for you so that you are free to carry out navigational checks, trim adjustments, etc. or to simply relax and enjoy the ride.

The NAVpilot-511/520 autopilot utilizes a proportional rate system to steer the boat. This system is similar to the highly accurate and reliable systems used on aircraft, missiles and space vehicles. The proportional rate autopilot provides the necessary course correction to the steering system relative to the speed and amount that the boat moves off course.

Dead band is the area (in degrees) that an autopilot is allowed to drift before correcting the vessel’s course. Since your NAVpilot-511/520’s advanced processor does not utilize a dead-band, it will not drift or wander, and will steer the boat reliably and accurately, taking action if even a minute course error occurs.

Because wandering is eliminated, the proportional rate autopilot uses less power and lowers wear and tear on the steering system. Course correction is smooth, and consistent, and the boat will not jerk back and forth at any speed.

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Contents Autopilot 00014860304 Safety Instructions Table of Contents Iii AlarmsFeatures ForewordWord to the Owner of the NAVpilot-511/520 System configuration of NAVpilot-511/520 System ConfigurationThis page is intentionally left blank Principle of Autopilot Principle of the AutopilotPrinciple of Operation Basic Operation Operating ControlsControl unit, front view Turning the power off Turning On/OffStartup sequence Adjusting Brilliance and Contrast Main menu ex. Stby modeContrast, brilliance window Choosing the display mode DisplaysDisplays Selecting data Selecting the data shown on Data DisplayDisplayed data Analog indicator selectionStby Mode Stby mode display Ex. Normal DisplaySteering Modes Auto Mode Using the Auto modeAuto mode display Ex. Normal Display Advanced Auto mode display Ex. Normal Display Advanced Auto modeEnabling the Advanced Auto mode Advanced auto options windowNAV Mode Starting the NAV modeNAV mode display Ex. Normal Display Selecting sailing method of NAV mode Nav mode options windowNAV mode, Course and XTE Waypoint switching options window Switching waypointSteering Mode Turn Mode Turn menuTurn menu inputting TLL data Example of 180º maneuver in turn mode 180º Turn for Auto mode only360º Turn for Auto mode only Example of 360º maneuver in turn modeExample of orbit maneuver ex. clockwise OrbitTo escape from the Orbit while it is in use, press Stby key Spiral Example of spiral maneuver in turn modeSteering Mode Figure Eight Example of Figure Eight in NAV modeTLL navigation Navigating to TLL pointDial type remote controller FAP-5551 Remote ModeTurning power on dial type FU Follow-Up mode display dial remote controllerRotating dial Turning power off dial typeNFU No Follow-Up mode display Turning power on, button and lever type remote controllersTurning power off, button and lever type remote controllers Operating remote controller ex. button and lever typesDodge Mode Dodging in Stby modeDodge mode display Heading from Dodging in Auto or NAV modeThis page is intentionally left blank Stby Mode Menu Stby mode menuMenu Operation Parameter setup menu Setting parametersSelecting the method of entering the parameter Sea state options windowDeviation level options window MANUAL-CALMExample of Manual parameter Setting parameters manuallyRudder angle and rudder gain setting Track line and weather setting valueWeather Rudder GainCounter Rudder General guidelines for setting counter rudder gainAuto trim options window Adjusting the sensitivity in monitoring the boat’s trimNAV Mode When towing the netNav mode data source window ex. default setting Auto net towing options windowWaypoint Switching Fish ModeRadius of Orbit Spiral SpeedSystem setup menu Setting other menu itemsActivating key beep Key beep options windowLock options window Locking the control unitSetting the panel dimmer Alarms Alarm Setup MenuAlarm setup menu Audio alarm options window Selecting the alarm buzzerAlarm interval options window Selecting the beep patternSetting the watch alarm Setting the heading deviation alarmWatch alarm options window XTE alarm options window Setting the cross-track error limitSpeed alarm options window Setting the speed alarmDepth alarm options window Setting the depth alarmSetting the trip distance alarm Setting the temperature alarmTemp alarm options window Log trip options windowLog trip clear options window Clearing the trip distanceAlarm menu Alarm InformationAlarm messages, their meanings and priorities Alarm messagesPreventive Maintenance Maintenance & TroubleshootingMaintenance program Check point RemedyDiagnostics Replacement of FuseParts Name Type Code No Remarks Test options windowProcessor Unit Test Control Unit TestHeading Sensor Test Keyboard Test Navpilot-511Navpilot-520Screen Test Rudder test Rudder Setup and Auto TestClearing Memories System DataSystem data screen Error Messages Error messagesError message Meaning Remedy Error messages con’t MN-1 Menu TreeMN-2 Auto mode menuControl Unit NAVPILOT-511/520Processor Unit InterfacePower Supply Environmental ConditionsCoating Color IN-1 Index
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520, 511 specifications

Furuno is a renowned name in the marine electronics industry, best known for its high-quality navigational and communication tools. Among its diverse product line, the Furuno 511 and 520 stand out as exceptional marine radars designed to enhance boating safety and efficiency.

The Furuno 511 radar is equipped with advanced technologies that offer a range of functionalities essential for navigating in various sea conditions. One of the key features of the 511 is its high-resolution display, which ensures that users can easily interpret radar images in real-time. This radar system operates on a frequency of 9.41 GHz, enabling it to provide superior target detection and tracking capabilities, crucial for identifying other vessels, landmasses, and potential hazards.

Another notable feature of the Furuno 511 is its automatic radar plotting aid (ARPA). This technology allows the radar to track multiple targets simultaneously, providing mariners with critical information such as their relative speed and course. This tracking ability enhances situational awareness and aids in making informed decisions on course adjustments.

On the other hand, the Furuno 520 radar is designed with similar cutting-edge technologies, offering a robust suite of features tailored for both commercial and recreational vessels. The Furuno 520 boasts advanced signal processing capabilities, which result in enhanced target discrimination and a clutter-free display. This is particularly beneficial in busy shipping channels or congested waters where distinguishing essential targets from background noise is vital.

The Furuno 520 also integrates a user-friendly interface, allowing for easy navigation of settings and options. This ease of use is further augmented by customizable display options, enabling users to tailor the radar presentation to meet their specific needs. Additionally, the radar incorporates automatic gain control, ensuring that targets can be seen clearly regardless of environmental conditions.

Both the Furuno 511 and 520 exemplify durability and reliability, constructed to withstand the rigors of maritime environments. With their robust builds and weather-resistant features, these radars are designed to function optimally, providing crucial navigational support in adverse conditions.

In conclusion, the Furuno 511 and 520 radars are exemplary pieces of equipment that deliver essential features and technologies for maritime navigation. Their advanced tracking capabilities, signal processing, and user-friendly interfaces make them ideal for enhancing safety and efficiency on the water. For anyone serious about marine navigation, investing in these high-performance radars is a smart decision that can significantly improve situational awareness and overall boating experience.
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