Instruction/ maintenance manual of the product AP25 Simrad
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MANUAL SIMRAD AP25 Autopilot 20221495F Sw.1.3 English.
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Instruction manual 20221495F 1 Instruction Manual This manual is intended as a re ference guide for operating and correctly installing the AP25 autopilot. Great care has been paid to simplify operation and set-up of the Simrad AP25, however, an aut opilot is a complex electronic system.
Simrad AP25 Autopilot 2 20221495F Document history Rev. A First edition. Rev. B Minor corrections in text. Table with SimNet/NMEA2000 messages included. Rev. C FU50 substituted by FU25. Part no. for AC40 Power PCB ass’y, page 136 corrected. Added notes in chapter 3.
Instruction manual 20221495F 3 Contents 1 System description ....................................................................................... 9 1.1 General ........................................................................................
Simrad AP25 Autopilot 4 20221495F Heading capture .................................................................................. 21 2.9 Automatic control of steering parameters ........................................... 22 Power boat.............
Instruction manual 20221495F 5 AUTO M ode ....................................................................................... 56 NAV Mode .......................................................................................... 58 WIND Mode .....
Simrad AP25 Autopilot 6 20221495F 3.16 JS10 Joystick ....................................................................................... 82 3.17 S35 NFU Lever installation ................................................................ 82 3.18 Interfacing .
Instruction manual 20221495F 7 4.6 Display units ..................................................................................... 113 4.7 Sea Trial ............................................................................................ 114 Set Rudder zero .
Simrad AP25 Autopilot 8 20221495F Autopilot Cont rol Unit ...................................................................... 137 6 Trouble shooting ...................................................................................... 139 6.1 Alarms .
System description 20221495F 9 1 SYSTEM DESCRIPTION 1.1 General Congratulations on the purchas e of your new Simrad AP25 autopilot system and thank you for selecting what we feel is the most advanced autopilot system available on the market today.
Simrad AP25 Autopilot 10 20221495F Other documentation material that is provided with your system includes a warranty card. This must be filled out by the authorized dealer that performed the installation and mailed in to activate the warranty.
System description 20221495F 11 1.4 AP25 Control Unit A compact autopilot control for panel, bulkhead or bracket mounting. Large LCD 5” display for readout of autopilot data, mode keys and a rotary course knob.
Simrad AP25 Autopilot 12 20221495F 1.7 Heading Sensors The AP25 autopilot can be used with the following combinations of heading sensors: RC36 Rate compass Fluxgate compass with integrated rate sensor. Provides a dramatic improvement to the dynamic performance of both the autopilot and a stabilized radar display.
System description 20221495F 13 1.8 Optional equipment A series of optional equipment are available for the basic AP25 system. R3000X Remote Control A small handheld remote control with two push buttons for power steering or course selec tion (port and starboard), and one push button with built-in lighted indicator for limited mode change.
Simrad AP25 Autopilot 14 20221495F Multiple stations Multiple control units can be added to the system. See comparison chart on page 11. 1.9 Software record When the system is switched on, a status display shows the software versions for the contro l unit and the autopilot computer.
Operation 20221495F 15 2 OPERATION WARNING ! An autopilot is a very useful navigational aid, but DOES NOT under any circumstance replace a human navigator.
Simrad AP25 Autopilot 16 20221495F The control unit shown above can operate as a stand alone unit in an autopilot system or combined in a mu ltistation system. In a multistation system the command ca n easily be transferred from one unit to another. Units not in control will display "Inactive" and/or .
Operation 20221495F 17 After approximately 5 seconds, the system is operative and the unit that was turned on will show the Standby mode display. Other units in a multistation sy stem will display "Inactive". Control is transferred to any single unit by pressing its’ STBY button.
Simrad AP25 Autopilot 18 20221495F 2.3 AP25 with MSD50 Stern Drive unit Note ! The information in section 2.3 only applies if your autopilot is driving a Simrad MS D50 Stern Drive. The MSD50 Stern drive unit has a relative feedback signal which needs a zero point setting after th e autopilot has been turned on.
Operation 20221495F 19 2.4 Follow-Up steering (FU) Note ! Not applicable for Virtual f eedback configuration (page 67). In the Follow-Up steering mode the course knob may be used to set rudder commands. The comma nde d rudder angle is shown on the display and the rudder will move to the commanded angle and stop.
Simrad AP25 Autopilot 20 20221495F 2.6 R3000X Remote Control (NFU) Push button for Port and Stbd commands In STANDBY mode, the rudder will move as long as the Port or Stbd button is pressed. In AUTO mode and Wind modes the set course or set wind angle will change 1° each time the button is pressed.
Operation 20221495F 21 2.8 Automatic Steering When AUTO mode is selected, th e AP25 automatically picks the current boat heading as the set course and maintains the simultaneous rudder angle.
Simrad AP25 Autopilot 22 20221495F A utomatic steering mode New “captured” heading: 305 degrees Compass reading: 301° M (Magnetic) or T (True) Heading source: Rate compass Rudder angle: 01° to stbd. Speed: 8.1 kt water speed from the log Steering parameter: LO-A Regain manual steering by pressing the STBY button 2.
Operation 20221495F 23 26 24 22 20 18 16 14 12 10 8 6 4 2 0 L O r e s p o n s e p a r a m e te r s H I r e s p o n s e p a r am e te r s Tran s i tion Sp eed set to 9 Kno t s Tra nsition to LO param e.
Simrad AP25 Autopilot 24 20221495F Quick double press Notes ! 1. If you are in NAV or WIND modes you need not enter AUTO mode to manually change the parameter set.
Operation 20221495F 25 C-turn The AP25 provides a continuous turn feature when in AUTO mode. This may be used for circli ng fish or a particular object on the seabed. C-turn makes the boat turn in a circle with a constant rate of turn. The user decides whether the C-turn should be made to Port or to Starboard.
Simrad AP25 Autopilot 26 20221495F Spiral-turn The spiral turn feature may also be used for circling fish or when searching a particular object on the seabed. Spiral-turn makes the boat turn in a spiral with a decreasing or increasing rate of turn. The user decides whether the spiral-turn should be made to Port or Starboard.
Operation 20221495F 27 Zigzag-turns A zigzag turn pattern is also available when in AUTO mode. The user decides whether the first turn should be made to Port or Starboard. Ensure that the zigzag-turn patte rn has been selected under the User Set-up 2 menu.
Simrad AP25 Autopilot 28 20221495F Square-turn The square turn feature in AUTO mode can also be made a rectangle or any pattern when the next turn is 90°. The user decides whether the first turn should be to Port or Starboard. Ensure that the Square-turn patte rn has been selected under the User Set-up 2 menu.
Operation 20221495F 29 Lazy S-turn The AP25 also provides a lazy S-turn feature when in AUTO mode. The user decides whether the initia l turn should be made to Port or to Starboard. Ensure that the lazy S-turn pa ttern has been selected under the User Set-up 2 menu.
Simrad AP25 Autopilot 30 20221495F Depth Contour Steering to a depth contour is al so an AUTO mode feature. With input from an echo sounder, the autopilot can be set to steer the boat to a set depth. This is very useful if you want to follow a depth contour.
Operation 20221495F 31 Select depth slope with the course knob. “/” means shallow is to starboard, “” means shallow to port. Steer the boat to the depth you want to track and in the direction of the depth contour (main course).
Simrad AP25 Autopilot 32 20221495F course. Each time the boat crosses the reference depth the sign (+/-) of the CCA is changed and makes the boat turn to cross the reference depth contour in the oppos ite direction. The larger the CCA the bigger the turn.
Operation 20221495F 33 Perform dodging in one of the following ways: 1. Manually steer the boat by the wheel: 2. Non Follow Up steering by pressing: or or using NFU steering lever 3.
Simrad AP25 Autopilot 34 20221495F STANDBY Non-Follow Up steering mode Heading to be maintained by rudder Heading to be maintained by rudder and thruster AUTO mode Heading maintained by rudder Heading.
Operation 20221495F 35 2.14 Tacking in Auto mode The tack function is only availabl e in sailboats when the system is set up for SAIL boat type in the installation setup. Tacking in AUTO mode is different from tacking in WIND mode. In AUTO mode the tack angle is fixed and can be set in the Installation/Dockside menu.
Simrad AP25 Autopilot 36 20221495F Select NoDrift in the Setup menu when in STANDBY or AUTO mode. Press the NAV WIND button to enter NoDrift mode. The NAV WIND key is now programmed to always activate the NoDrift mode. If you want the key to activate NAV mode, enter the User Setup menu and select NAV.
Operation 20221495F 37 2.16 Navigating with the AP25 Note ! The source when operating in NAV mode is the Navigation (Nav) source. The AP25 has the capability to us e steering information from an external navigator (GPS, Chart Pl otter) to direct the boat to a specific waypoint location, or th rough a route of waypoints.
Simrad AP25 Autopilot 38 20221495F The prompt display shows the name or number of the next waypoint (WP), the bearing of the track line (BWW) from the previous waypoint to the destination waypoint, the required course change (CHG) and the direction in which the boat will turn.
Operation 20221495F 39 Note ! If the required course change is more than the NAV change limit (default 10 ° ), you have to verify that the upcoming course change is acceptable. This is a safety feature. See page 124 on how to change the ‘NAV change limit’.
Simrad AP25 Autopilot 40 20221495F Example: With the speed of 20 knots you should use a waypoint circle with radius 0.09 nm. Note ! The distance between any waypoi nts in a route must not be smaller than the radius of the way point arrival circle when using automatic waypoint shift.
Operation 20221495F 41 To return from Dodge mode, press one of the following: 1. Returns to NAV mode at present position with a new NAV prompt. Keeps all offset estimates (Wind/current etc.) in the algorithms (recommended). 2. Selects NAV mode at present position with a new NAV prompt.
Simrad AP25 Autopilot 42 20221495F The display will show the set wind angle. Adjustments to this set angle can be made by us ing the course knob or PORT or STBD button. The display also presents heading and rudder angle. W ind (vane) mode Set wind angle: 044 degrees from stbd.
Operation 20221495F 43 2.20 Tacking and gybing in Wind mode In WIND mode there is a tack ing and gybing aid function. Tacking in WIND mode as compared to AUTO mode can be performed when sailing with apparent or true wind as the reference, and with a true wi nd angle of less than 90 degrees.
Simrad AP25 Autopilot 44 20221495F Tack and gybe operations Gybing is possible when the true wind angle is larger than 120°. When a gybe is initiated, the wind angle will first be set to 170°T on the same side as the current wind angle. The main sail should now be hauled.
Operation 20221495F 45 the wind side is shifted and an unwanted gybe may happen. This can be hazardous for both the crew and the mast. The gybe prevent function will be activated when the measured apparent wind angle becomes greater than 175° or when the wind angle gets opposite to the se t wind angle.
Simrad AP25 Autopilot 46 20221495F [1] [2] [4 ] [3] [7] [5] [6] [8] Figure 2-2 Wind steering.
Operation 20221495F 47 Operating in WIND NAV mode Refer to Figure 2-2 with references [ ] the associated displays and the criteria (bullets) below. • The set wind angle should be larger than the ‘Minimum wind angle’ set in the Installation/Dockside menu and smaller than 170° Apparent.
Simrad AP25 Autopilot 48 20221495F 2.22 Multiple station system In normal operation control is accessible from every control unit connected to the AP25 system. On e control unit is "active" and provides the user with access to all functions.
Operation 20221495F 49 The “Lock function is disenga ged by one of the following actions: • The active control unit unlocks the other ones and makes them “inactive” by another double pr ess on the STBY button. It also displays the icon before it returns to the normal active state.
Simrad AP25 Autopilot 50 20221495F 2.24 User Set-up Menu In the AP25, all modes except NFU and FU have a complemental User Set-up menu. You can easily access the set-up menu by a quick double press on the INFO/SETUP button.
Operation 20221495F 51 NAV WIND This setup will configure the active mode under the NAV WIND button. The following alternatives are available: • NAV (Ref page 37) • NoDrift (Ref. page 35) • WIND Auto Wind steering will be disabled when ‘NAV’ or ‘NoDrift’ is selected.
Simrad AP25 Autopilot 52 20221495F The ‘Nav/Wind’ parameter can be set in the User Setup or in the Quick setup. Quick setup is ac tivated after by quick double press on the NAV WIND button. ‘ WIND Apparent ’ is selected when you only want to steer to apparent wind.
Operation 20221495F 53 Note ! SimNet will automatically select Position source and Navigation source from the same GPS/Chart plo tter. If you want them to be different you have to change them manually. Auto source update Is used for automatically update of sources if the interfaced units have been removed/added or switched on/off.
Simrad AP25 Autopilot 54 20221495F Compass Select the compass to be used if more than one compass is connected. Note! Compass can only be selected in STBY mode Navigation Select a source for NAV mode steering. Position Select the source for position data and NoDrift mode.
Operation 20221495F 55 Course Adjust When using the ( PORT ) or ( STBD ) buttons in AUTO mode, you are changing the set course in 1° increments. If you prefer the increments to be 10° each press (does not apply for sailboats), proceed as follows: Select Course adjust and turn the course knob to change the setting.
Simrad AP25 Autopilot 56 20221495F AUTO Mode Settings that are added for the AUTO and WIND modes are shown below. Other relevant settings are described under STANDBY mode in this chapter. Response The Autotune function in the AP25 is so refined that 80-85 % of the boats will need no further adjustments of the steering parameters.
Operation 20221495F 57 Thruster sens (only available if a thruster is connected). The Thruster sensitivity determines how many degrees the vessel will deviate from the set course before a thruster command is given. As the vessel deviates from its heading, the thruster will push the vessel back on.
Simrad AP25 Autopilot 58 20221495F NAV Mode The User setup for NAV mode is similar to the User setup for AUTO mode. It does not include the Nav/Wind and the Source select items. The User setup 2 contains the Set shallow water alarm and the Contrast setting.
Operation 20221495F 59 WIND Auto This line will only appear if th e autopilot has been set up for racing in the installation menu (page 106). See page 51 for information about the RACING parameters. User setup2 The User setup 2 contains the Set shallow water alarm and the Contrast setting.
Simrad AP25 Autopilot 60 20221495F Layline steering (RACING) ‘Layline steering’ can only be enabled or disabled when ‘Wind setup’ is set to ‘RACING’. It is enabled in the ‘NORMAL’ sub- mode. Layline steering is useful when navigating. It will use the Cross Track Error (XTE) from the navi gator to keep the boat on the track line.
Operation 20221495F 61 Step or scroll through the available instrument screens by pressing the PORT or STBD button or using the course knob. The right hand side of the display will show the following instrument screens: If you prefer not to have all the instrument pages available in the INFO menu, you may remove pages under the User setup 2 menu.
Simrad AP25 Autopilot 62 20221495F Course knob icon Initially when the INFO menu is accessed an icon will replace the mode index to tell that no c ourse changes or other course related settings can be made unless you press a mode key. The icon will time out after 3-5 sec onds and be replaced by the mode index.
Operation 20221495F 63 INFO menu and Main Screen, active unit 12 6 3 9 1 2 4 5 7 8 10 11 3- 5 sec. time out Main scre en INFO-menu INFO menu and Main Screen, inactive or locked unit Next IN FO page Pr.
Simrad AP25 Autopilot 64 20221495F This page is intentionally left blank.
Installation 20221495F 65 3 INSTALLATION 3.1 General This section provides detaile d information required to successfully installing AP25 Autopilot system.
Simrad AP25 Autopilot 66 20221495F b) Compass calibration c) Compass Offset adjustment d) Automatic tuning e) Viewing parameters 9. Test Autopilot Operation at Sea (refer to Sea Trial instructions, pages 114, 132) 10. Provide the user with training (Page 133) 3.
Installation 20221495F 67 Notes! 1. On boats powered by outboards or stern drives it may be difficult to install a rudder feedback unit (chapter 3.6 and 3.27). Use of the Virtual feedback algorithms in the software may then be preferred as this requires no installation of a rudder feedback unit (page 109).
Simrad AP25 Autopilot 68 20221495F transmission link. The slots en able maximum flexibility to provide the 1:1 mechanical linkage relationship. Note ! Do not try to remove the transm itter arm from the feedback unit. The unit is factory adjusted and need no further adjustment at installation than described below.
Installation 20221495F 69 Note ! Due to space limitations, it may be necessary to cut the length of the transmitter rod to move the RF300 closer to the rudder post. Tighten the mounting screws for both the RF300 feedback unit and the transmitter rod ball joint.
Simrad AP25 Autopilot 70 20221495F 3.8 Cable connections Use only shielded cables. This includes Mains input, drive units and if necessary for the extension of the RF300 Rudder Feedback cable. The clutch/bypass cable and the solenoid cable should be 1,5 mm 2 (AWG14).
Installation 20221495F 71 Power Board terminals Main Board terminals N ote! The Mains input is not polarity p rotected on A C40. Ground terminal TB8, TB9 and TB10 are not on the AC10 Power Board.
Simrad AP25 Autopilot 72 20221495F 3.10 Drive unit installation The relations between drive units, drive unit voltage, autopilot computer, drive performance and interface to the steering gear are shown in the tables below. Refer to the connecting diagram for the different drive units on page 74 onwards.
Installation 20221495F 73 LINEAR DRIVE UNITS MODEL MOTOR VOLTS AUTO- PILOT COM- PUTER MAX STROKE mm (in.) PEAK THRUST kg (lb.) MAX RUDDER TORQUE Nm (lb.
Simrad AP25 Autopilot 74 20221495F PREVIOUS MODELS DRIVE OF UNITS Model Autopilot computer Drive unit voltage Input voltage (Mains) Drive output Interface to steering gear RPU100 (1,0l) RPU150 (1,5l) .
Installation 20221495F 75 Connecting a hydraulic linear drive AUTO PILOT COM PUT ER POWER PCB TB1 TB2 TB3 TB4 TB5 TB6 Dri ve Enga ge Sol. -Motor Sol. -Motor TB7 HYDR AULIC LIN E A R DR IV E Singl e po.
Simrad AP25 Autopilot 76 20221495F 3.11 Control unit installation Avoid mounting the control unit(s) where it is easily exposed to sunlight, as this will shorten the lif etime of the display. If this is not possible, make sure the units are always covered with the white protection cover when not used.
Installation 20221495F 77 Optional bracket mounting • Locate the cradle on the mounting site and mark the 4 holes for the fixing screws on the mounting surface. • Drill the 4 mounting holes and screw the cradle to the mounting surface. • Use the supplied screws to fasten the control unit to the left and right brackets.
Simrad AP25 Autopilot 78 20221495F both ends are available in 1, 5 and 10 m length. For cable extension a Robnet2 T-Joiner is required. When installing a system, try to minimize total Robnet2 cable length by connecting all Robnet2 un its to the nearest available Robnet2 connector.
Installation 20221495F 79 On-Off Vsys+ AUTOPI LO T COMPU TER M A IN PC B RO BNET Bus+ Vsys Wh Bn Bus Pn k G ry Yel AP25 CONTROL UNIT REAR VIEW TB15 J4 J2 J1 J3 Connect to any o f the two Robnet2 connec tors Figure 3-11 Control unit connection J1 and J2 (top) are Robnet2 connectors.
Simrad AP25 Autopilot 80 20221495F mounting location. As the heading is displayed on the AP25 Control Unit, the heading sensor can be mounted at a remote location. The RC36 rate compass also contains a magnetic heading sensor, so particular attention must be paid to the location.
Installation 20221495F 81 RA TE COM PA SS AP16, AP25, A P26 Figure 3-13 RC36 connection to autopilot control unit Plug the RC36 into a Robnet2 connector (see Figure 3-9) or cut the connector from the cable and connect the wires in parallel with the cable shown in Figure 3-11.
Simrad AP25 Autopilot 82 20221495F 3.15 R3000X Remote Control installation R3000X should be mounted in the supplied bracket that can be fixed by four mounting screws.
Installation 20221495F 83 TB6 AUTO PILOT COMPUTER POW ER PCB TB3 TB4 TB 5 TB7 S35 ST EERI NG LEV ER TB1 TB2 Lamp Stbd Port Gn d Brn /Wh Pnk/Gry Ye l Grn NOTE! Disr egard th e color code on t he termi nal lab el. REMOTE Figure 3-16 S35 connection The unit is opened by removing the three screws on the back cover.
Simrad AP25 Autopilot 84 20221495F SimNet network cables A SimNet unit has one or two yellow SimNet connectors. There are no dedicated “in” or “out” c onnectors. Find the shortest and easiest way to route the SimNet cables from product to product and select the standard length cables from the SimNet accessory program.
Installation 20221495F 85 SIMRAD IS 12 COMBI LIGHT ALARM TIMER UPPER INFO LOWER INFO PAG E LIGH T SIM RAD I S12 UPPER INFO LOWER INFO DATA 1 1 TURN INF O NAV WI ND SETUP DO DGE AUTO STBY PWR 10 10 ALA.
Simrad AP25 Autopilot 86 20221495F PAGE LIG HT INFO UPPER SIMRAD IS12 INFO LOW ER DATA NAV WIN D DODGE INF O COMB I LIGH T ALARM TIMER UPPER INFO SIMRA D IS12 INFO LOWER STBY AUTO PWR COMB I LIGH T TI.
Installation 20221495F 87 STBY SETUP INF O PWR NAV WI ND AUTO TURN DODG E 10 10 1 1 SIMRAD IS12 TIMER ALARM LIGH T LOWER INFO INFO UPPER UPPER SIMRAD IS12 LIGH T ALARM TIMER LOWER INFO INFO LI GHT SIM.
Simrad AP25 Autopilot 88 20221495F Figure 3-21 Robnet2, SimNet and Roblink network Notes ! 1. Maximum total length of SimNet cable is 60 m (196 ft.) excluding the 30 m (99 ft.) of masthead cable. 2. It is not necessary to connect all autopilot control units to SimNet for data sharing.
Installation 20221495F 89 3.20 Single NMEA input/output RX1 RX1+ MA IN PCB NM EA Input 1 Vbat+ Sy s. sel . Gnd TX1 TX1+ NMEA Output1 AUT O P ILO T COM PUTER TB1 3 TB14 Note NAV RECEIVE R OR PLOTTER (N.
Simrad AP25 Autopilot 90 20221495F 3.22 NMEA output on Port 2 Output signal Output terminal Output sentence Continuous output of compass heading at 10 Hz (10x/sec.) Rudder angle output at 5 Hz NMEA format Autopilot Computer Power PCB. NMEA2, TX2+, TX2–.
Installation 20221495F 91 3.24 Radar Clock/Data AC2 0/A C40 AUTO PILO T CO MP UT ER POW ER PC B Ra da r TB8 TB 9 TB1 0 Data_h Data_c Clk_h Clk_c SIM RAD / AN RITSU OR FURUNO RADAR Figure 3-25 Radar Clock/Data connection 3.25 IS15 Instrument installation For installation and operation of the IS15 instruments refer to separate manuals.
Simrad AP25 Autopilot 92 20221495F If IS15 Expander is used in the instrument system, the NMEA connections are made to this unit. See Figure 3-27. Figure 3-26 IS15 Instruments / Autopilot computer con.
Installation 20221495F 93 3.26 External Alarm The external alarm circuit has an open collector output for an external alarm relay or buzzer (not on AC10). The operating voltage for the circuit is the main supply voltage. Max. load on external alarm output is 0.
Simrad AP25 Autopilot 94 20221495F two washers and the cap nut provided. Adjust the location of the LF3000 Linear Feedback to allo w full travel of the hydraulic cylinder without causing the retainer plate to hit the end of the cylinder. Check that the outboard motor can be tilted freely.
Configuration and setup 20221495F 95 4 CONFIGURATION AND SETUP 4.1 First time turn on Before attempting to turn on the AP25 and perform an Installation Setup, the hardware installation and electrical connections must be comple ted in accordance with the installation instructions.
Simrad AP25 Autopilot 96 20221495F The display will read ‘SETUP REQUIRED’. Continue with the installation setup according to the next chapters. If you already have completed the installation settings, the autopilot will enter STBY mode.
Configuration and setup 20221495F 97 Some important points regarding the installation settings: • When the AP25 is delivered new from the factory AND ANY TIME AFTER A MASTER RESET OF MEMORIES HAS BEEN PERFORMED, the installation settings are all reset to factory preset (default) valu es.
Simrad AP25 Autopilot 98 20221495F • Change the selected item by rotating the course knob in either direction. • Exit the Installation Menu by pressing STBY , AUTO , or NAV/WIND buttons. When using the Installation Menu, refer to the diagram "Installation settings Menu Fl ow Chart" on next page.
Configuration and setup 20221495F 99 DOCKSIDE SEATRIAL I NSTALLATION MENU SEA- TRI AL MENU DOCKSIDE MENU ENGLISH DEU TSCH FRANCAIS ESPANOL ITAL IANO NED ERLA NDS SVENSKA NOR SK LANGUA GE MENU SERVI CE.
Simrad AP25 Autopilot 100 20221495F 4.4 Dockside settings Note ! If the autopilot has no rudder fee dback unit installed (configured for Virtual feedback), refer to the Dockside settings on page 109- 112.
Configuration and setup 20221495F 101 Drive unit voltage Set the drive unit voltage to correct level. The selections are 12V, 24V, or 32V and should be set to the voltage specified for your drive unit. Refer to the drive unit table on page 72 for information.
Simrad AP25 Autopilot 102 20221495F Confirm Rudder feedback calibration to STBD by turning the course knob clockwise. Manually turn the helm to starboard until the rudder stops at starboard lock (H.O.). The value on the display is the angle read by the rudder feedback unit before any adjustment is made.
Configuration and setup 20221495F 103 Rudder Test Note ! If the boat uses power assisted st eering, it is important that the engine or electric motor used to enable the power assist steering be turned on prior to this test. Bring the rudder manually to mids hip position before starting the test.
Simrad AP25 Autopilot 104 20221495F The Motor Drive out (displayed in percentage) is the amount of available power needed to achieve recommended rudder speed when on automatic steering Maximum speed (100%) is used in NFU mode. See also “Final Sea Trial” on page 132.
Configuration and setup 20221495F 105 Drive engage This determines the use of the autopilot computer drive engage port (BYPASS/ CLUTCH terminals). The port voltage is the same as the selected drive unit voltage.
Simrad AP25 Autopilot 106 20221495F Range: AUTO, 0.1° to 4.0° in 0.1° increments. Default: AUTO. Proceed to the next menu item by pressing the STBD button. Note ! The rudder deadband setting is not available when the autopilot is configured for Virtual feedback.
Configuration and setup 20221495F 107 Minimum wind angle (RACING) If ‘Wind setup’ is set to RACING, you can set different minimum wind angles for port and starboard. The difference between port and starboard wind angles will be taken into account when calculating the Estimated Time to Turn (ETT) and Distance To Turn (DTT).
Simrad AP25 Autopilot 108 20221495F A turn performed without shifting wind side, will also be made at a reduced turn rate. Shifting wind side when gybing, however, is an instant action from the au topilot and there is no limitation of the turn rate when making a gybe.
Configuration and setup 20221495F 109 Dockside settings when configured for Virtual Feedback The Virtual Feedback algorithms in the autopilot software enable your autopilot to steer without having to mount a conventional rudder feedback unit. These algorithms are designed for vessels up to 40 ft.
Simrad AP25 Autopilot 110 20221495F Virtual Feedback calibration To perform the Virtual Feedback calibration and rudder test you must be able to view the movement of the engines/drives (“rudder”). The Virtual feedback calibration is entered as a numerical value equal to the physical rudder angle observed at the hard over position.
Configuration and setup 20221495F 111 If the rudder is not moving so as to give a starboard turn, press and hold the TURN/DODGE button for another 3 seconds. When the rudder is moving to starboard, turn the course knob clockwise to confirm. While observing the rudder, use the wheel to turn the rudder hard over to starboard position.
Simrad AP25 Autopilot 112 20221495F The rudder will now be automatically centered. Note! The reading in the rudder angle display is not showing a rudder angle, only the direction of the rudder movement. The Rudder test is verified by the display showing ‘Motor OK’ or ‘Failed’.
Configuration and setup 20221495F 113 4.5 Interface Settings Sets the format of the clock/data output for radars connected to the Autopilot Computer. Step to the Interface part of the Installation Menu. Turn the course knob clockwise to access the Interface Setup items.
Simrad AP25 Autopilot 114 20221495F Available units are: Wind Speed: kt or m/s Sea temperature: °F or °C Depth: m or ft Exit the Display units menu by pressing STBD button to proceed to the Sea trial menu, or press STBY to return to normal AP25 operation.
Configuration and setup 20221495F 115 Select Seatrial by pressing the STBD button and confirm by rotating the course knob clock-wise. Set Rudder zero (Not applicable when configured for Virtual feedback) This adjustment should be made in calm sea and side forces from wind or current s hould be avoided.
Simrad AP25 Autopilot 116 20221495F By turning the Minimum Rudder function ‘On’, it may hence improve the course keeping performance on some boats, but it will increase the rudder activity. Turn the minimum rudder on by turning the rotary course knob.
Configuration and setup 20221495F 117 The calibration should be done in calm sea conditions and with minimal wind to obtain good results . Use about 60-90 seconds to make a full circle. Increase speed: >>>>> Decrease speed: <<<<< Appropriate speed: > < 1.
Simrad AP25 Autopilot 118 20221495F compass to a different location. The local field angle will aid you to the local interfering magnetic object. See drawing. Lubber line Lubber line Magnitude of local field in % of earth’s magnetic field. Direction of local field with respect to lubber line.
Configuration and setup 20221495F 119 Select the amount of correction by turning the course knob to offset the heading to agree with the known, accurate heading.
Simrad AP25 Autopilot 120 20221495F Wind Offset Note ! This offset only applies if you have a wind transducer directly connected to SimNet (IS12TW) or a wind transducer that outputs data on NMEA2000 format. The Wind Offset feature allows you to correct for a fixed wind angle offset.
Configuration and setup 20221495F 121 through water. If none of these are available, the AWF will use a boat speed that is 1.5 times th e Transition Speed set in the Installation/Seatrial menu.
Simrad AP25 Autopilot 122 20221495F Recommended speed during Automatic tuning varies with the type of boat, but should not exceed 10 knots. It should be performed in calm or moderate sea conditions.
Configuration and setup 20221495F 123 Transition Speed The transition speed is th e speed where the AP25 will automatically change the steering parameter set from HI to LO parameters, or vice versa (page 22). The default setting of transition speed is 5 kts.
Simrad AP25 Autopilot 124 20221495F NAV change limit In NAV mode, when the required course change at the approaching waypoint is bigger than the set limit, you are prompted to verify that the upcoming course change is acceptable. The limit can be set to 10°, 20° or 30°.
Configuration and setup 20221495F 125 different at slow speed as compared to cruising speed and both situations have to be compensated for individually. This adjustmen t must be made when steering in dead calm sea. Confirm by turning the course knob clockwise.
Simrad AP25 Autopilot 126 20221495F 4.8 Parameters A boats steering parameters found by the Automatic tuning can be looked at and if needed changed under this menu item. The steering parameters can also be set manually instead of performing an Automatic tuning.
Configuration and setup 20221495F 127 The two most important parameters that determine the performance of the automatic steering are Rudder and Counter Rudder. Rudder sets the rudder gain which is the ratio between the commanded angle and the heading error.
Simrad AP25 Autopilot 128 20221495F Autotrim standard value is 40 sec. which should work well on most boats. Rudder Limit should be kept at 20 degrees unless there is a need for more rudder when performing dockside manoeuvres.
Configuration and setup 20221495F 129 System Data Menu Select System data by rotating the course knob clockwise. This menu provides you with additional system data that can be useful when testing or trouble shooting the system. Steer compass Steering Compass readout, M=Magnetic, T=True Rudder Rudder angle.
Simrad AP25 Autopilot 130 20221495F For all data items, one of the following codes will be displayed: – – – No data or no NMEA se ntence containing the data needed is available at the input port. OK Valid data found INV Message with invalid information.
Configuration and setup 20221495F 131 Under Service in the Installation Menu, select NMEA port test by pressing the STBD button and confirm this by rotating the course knob clockwise. Verify that the hardware is OK. If not, replace the corresponding PCB(‘s).
Simrad AP25 Autopilot 132 20221495F SimNet gateway Indicates which control unit that transmits and receives information on SimNet. The display verifies by reading ‘Yes’, all other units display ‘No’. Global SimNet reset Resets the entire SimNet setup in the Simrad Group and initiates a new automatic interface setup.
Configuration and setup 20221495F 133 • If the hardware for automatic HI/LO selection is connected and configured, verify that th e HI/LO transition is occurring, and the HI/LO parameters are changing after the transition speed is crossed (by more than 1 Knot higher or lower speed).
Simrad AP25 Autopilot 134 20221495F • Using the lock mode, how to lock/unlock and how to shut the system down from a locked control unit, if applicable. • Use of the Non-Follow-up and Follow-up steering modes and learning the difference between the two.
Maintenance 20221495E 135 5 MAINTENANCE 5.1 Control unit The AP25 Control Unit will under normal use require little maintenance. If the unit requires any form of cleaning, use fresh water and a mild soap solution (not a deterg ent). It is important to avoid using chemical cleaners and hydroc arbons such as diesel, petrol etc.
Simrad AP25 Autopilot 136 20221495F 5.6 Exchange of software programme Autopilot Computer Figure 5-1 AC10/AC20/AC40 Main PC-Board • Remove the EPROM from the socket by means of the special extraction tool (p/n 44139806). • Insert the tool by pressing the two grip pins down into the two slots in the corners of the socket.
Maintenance 20221495E 137 Autopilot Control Unit You will need a special kit for a PC to perform the programming of the AP25 Control Unit. Or der the following from Simrad: Programming kit P/N 22088595. Instructions are included. Figure 5-2 Part of AP25 PCB Remove the cables and unscrew the six screws that secure the back cover.
Simrad AP25 Autopilot 138 20221495F This page is intentionally left blank..
Trouble shooting 20221495F 139 6 TROUBLE SHOOTING An autopilot is a complex syst em. Its performance dependents on a proper installation and a successful sea trial. In the event of an autopilot failure, the AP25’s numerous test features will assist you in isolating a probable fault.
Simrad AP25 Autopilot 140 20221495F Display readout Probable fault Recommended action Shallow water The depth is inside the set limit or outside the range, i.e. 100 m (328’) Depth data is missing. 1. Carefully observe the actual depth. 2. Adjust the alarm limit if not hazardous.
Trouble shooting 20221495F 141 Display readout Probable fault Recommended action Rudder test failed Following conditions may exist: a) Rudder feedback failure b) Autopilot Computer current overload c) Bypass/clutch overload Refer to recommended actions for the specific probable faults.
Simrad AP25 Autopilot 142 20221495F Display readout Probable fault Recommended action Failure active Control Unit Active control unit goes silent. 1. Press the STBY button on an "Inactive" unit to reset. 2. Check/repair RobNet2 cable. 3. Replace the control unit PCB.
Trouble shooting 20221495F 143 Display readout Probable fault Recommended action Com. failure with ACXX Faulty Autopilot Computer or poor Robnet2 cable connections from the same. 1. Check Robnet2 connectors and cable. 2. Replace Autopilot Computer Main PCB.
Simrad AP25 Autopilot 144 20221495F 7 SPARE PARTS LIST AP25 Control Unit 22087811 AP25 Control Unit 22088405 Standard mounting kit consisting of: 22084693 Gasket (2 mm) 22086029 Gasket (7.
Spare parts list 20221495F 145 22081434 AC10/AC20 Base plate 22082036 AC40 Base plate 22081350 Main cover 22081368 Terminal cover RFC35 Electronic Fluxgate Compass 22086995 RFC35 Fluxgate Compass 22081442 Installation accesso ries consisting of: 20104972 Mounting plate (2) 44140762 Screw 3.
Simrad AP25 Autopilot 146 20221495F Robnet2 cables 24005613 Robnet2 cable, 1 m (3’) with two plugs 24005621 Robnet2 cable, 5 m (16’) with two plugs 24005639 Robnet2 cable, 10 m (33’) with two plugs 24005647 Robnet2 cable 15 m (49’) with one plug 24005662 Robnet2, T-joint SimNet cables and accessories 24005829 SimNet cable 0.
Technical specifications 20221495F 147 8 TECHNICAL SPECIFICATIONS 8.1 AP25 Autopilot System Boat size and type: ..................... Up to 80 feet, Power, Displacement, Sail Steering system types: ............... Hydraulic, Mechanical Inter-unit connection: .
Simrad AP25 Autopilot 148 20221495F Heading sensors: Standard: ........................... RC36 Rate Compass Options: ............................. RFC 35 Electronic Fluxgate compass NMEA Compass (Not AC10) Simrad RGC50/RGC10 gyrocompasses * * By GI51 Course Selection: .
Technical specifications 20221495F 149 8.2 AP25 Control Unit Dimensions: ............................... See Figure 8-1 Weight: ...................................... 0,5 kg (1.1 lbs) Power consumption ................... 3 W Display: Type: ..........
Simrad AP25 Autopilot 150 20221495F 8.3 Autopilot Computers Dimensions: ............................... See Figure 8-2 and Figure 8-3 Weight: AC10/AC20 ...................... 1,3 kg (2,9 lbs.) AC40 ................................. 2, 8 kg (6,2 lbs) Supply voltage: AC10 .
Technical specifications 20221495F 151 Figure 8-2 AC10/AC20 Autop ilot Computert - Dimensions Figure 8-3 AC40 Autopilo t Computer - Dimensions.
Simrad AP25 Autopilot 152 20221495F 8.4 RC36 Rate compass Dimensions: ............................... See Figure 8-4 Weight: ...................................... 0,9 kg (2,0 lbs) Supply and interface: ................. RobNet2 Power consumption: ...
Technical specifications 20221495F 153 8.5 RFC35 Fluxgate compass Dimensions: ............................... Same as RC36. See Figure 8-4 Weight: ....
Simrad AP25 Autopilot 154 20221495F Transmission link: ..................... Stainless 350mm (13.8") with 2 ball joints. Ball joint stud for rudder arm requires 4.
Technical specifications 20221495F 155 8.7 R3000X Remote Control Dimensions: .... See Figure 8-7 Weight: ............ 0,4 kg (0,9 lbs) Material: .......... Epoxy coated aluminium Protection ........ IP56 Safe distance to compass: 0.15 m (0.5 ft.) Temperature range: Operation: .
Simrad AP25 Autopilot 156 20221495F 8.9 FU25 Steering Lever Dimensions: ............................... See Figure 8-9 Handle can be mounted poin ting upwards or downwards. Weight: ...................................... 1.2 kg (2.6 lbs.) including cable Material:.
Technical specifications 20221495F 157 8.10 IS15 Rudder Dimensions: ............................... See Figure 8-9 Weight: ...................................... 225 grams Environmental Protection: ......... IP56 from front, IP44 from rear Power requirement: .
Simrad AP25 Autopilot 158 20221495F Figure 8-10 IS15 R udder - Dimensions 8.11 SimNet Maximum number of products connected in a network:...................................... 50 Maximum cable lengt h: ............. ....................................
Technical specifications 20221495F 159 8.12 IP protection Each part of a Simrad autopilo t system has a two digits IP protection code. The IP rating is a method to classify the degree of protection against solid objects, water ingress and impact afforded by electrical equipment and enclosures .
Simrad AP25 Autopilot 160 20221495F 8.13 NMEA and SimNet messages NMEA018 3 messages and data overview for A C10, A C20, A C40 Message iden t. HDG HDM HDT RSA MWV 2) VPW 2) DBT DPT MTW VHW 2) VLW VBW GGA GLL RMA Data source: (n/p/h=nav/pos/h ead ing source, c=calculated) : h h h c ppp A ccept.
Technical Specifications 20221495F 161 Remarks: RMC 2) VTG 2) APB 2) BOD BWW BWC BWR RMB 2) XTE HSC ppnn n n nnn c P P* N N N N* N * N N * Pos flag or NMEA ver sion 3.
Simrad AP25 Autopilot 162 20221495F SimNet/NM EA 2000 mess ages and d ata overv iew Messag e ident. 127250 127245 130306 128267 128259 128275 65408* 129025 129029 129026 130577 128259 127258 127250 HC.
Technical Specifications 20221495F 163 Remarks: 129283 129284 65357* 127237 * Sim Net proprietary NN C dd dx dd dx dd dx dd dx dd dx dd dx d d d x I n INFO views Depth+Offs et is dis played if x of fs.
Simrad AP25 Autopilot 164 20221495F 9 GLOSSARY Apparent wind – The speed and direction from which the wind appears to blow with referenc e to the bow when the boat is moving (also called relative wind). Arrival alarm – An alarm signal issued by a GPS/chartplotter that indicates arrival at or at a predetermined distance from a waypoint.
Glossary 20221495F 165 Magnetic variation - A magnetic compass points to the magnetic north pole. The differenc e between this direction and true north is the magnetic varia tion. The amount and direction of this variation is dependent upon where on the earth you are located.
Simrad AP25 Autopilot 166 20221495F True bearing – Bearing relative to true north; compass bearing corrected for compass error. True heading – Heading relative to true north (the meridian). Waypoint - A discrete point, stored in a navigator, located on the surface of the earth.
Index 20221495F 167 10 INDEX A alarm external, 93 listing, 139 apparent wind, 42, 47, 164 arrival circle, 39 auto source update, 53 automatic tuning, 121 autopilot computer installation, 69 maintenanc.
Simrad AP25 Autopilot 168 20221495F I illumination. See backlight Init NAV, 123 instrument installation , 91 log, 55, 61 main, 55, 61 menu, 60 motorway, 55, 61 nav data, 55, 61 position, 55, 61 screen.
Terms of Warranty 20221495F 169 setting, 127 rudder deadband, 105 Rudder deadband, 131 rudder feedback calibration, 102 installation, 67 maintenance, 135 specifications, 153 rudder limit, 128 Rudder p.
Simrad AP25 Autopilot 170 20221495F wind vane steering, 41 Z zigzag-turn, 27, 55.
An important point after buying a device Simrad AP25 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Simrad AP25 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Simrad AP25 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Simrad AP25 you will learn all the available features of the product, as well as information on its operation. The information that you get Simrad AP25 will certainly help you make a decision on the purchase.
If you already are a holder of Simrad AP25, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Simrad AP25.
However, one of the most important roles played by the user manual is to help in solving problems with Simrad AP25. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Simrad AP25 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
