MANUAL Simrad AP26 and AP27 Autopilots
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Instruction manual Instruction Manual This manual is intended as a reference guide for operating and correctly installing the AP26 and AP27 autopilots. Great care has been paid to simplify operation and set-up of the autopilots, however, an autopilot is a complex electronic system. It is affected by sea conditions, speed of the vessel, hull shape and size.
Simrad AP26 and AP27 Autopilots Document revisions Rev A B Date 18.03.04 27.04.04 Written by NG Checked by ThH Approved by ThH Document history Rev. A First edition. Rev. B FU50 substituted by FU25. Part no. for AC40 Power PCB ass’y, page 124 corrected. Added notes in chapter 3.19. Minor corrections in text and display pictures.
Instruction manual Contents 1 System description ....................................................................................... 9 1.1 General .................................................................................................. 9 1.2 How to use this manual......................................................................... 9 1.3 System components............................................................................. 10 1.4 AP26 Control Unit ................................
Simrad AP26 and AP27 Autopilots 2.7 JS10 Joystick (NFU) ........................................................................... 21 2.8 Automatic Steering ............................................................................. 22 Heading catch...................................................................................... 22 2.9 Automatic control of steering parameters........................................... 23 Power boat.....................................................................
Instruction manual INFO menu flowchart ......................................................................... 49 Alternative mode screens in STBY, AUTO and NAV....................... 50 INFO menu and Main screen, active unit ........................................... 50 INFO menu and Main Screen, inactive unit ....................................... 50 3 Installation.................................................................................................. 51 3.1 General ........................
Simrad AP26 and AP27 Autopilots SimNet network cables ....................................................................... 70 SimNet power and termination ........................................................... 70 3.20 Single NMEA input/output ................................................................. 75 3.21 Double NMEA input/output ............................................................... 75 3.22 NMEA output on Port 2.....................................................................
Instruction manual Set Rudder zero................................................................................... 97 Minimum rudder ................................................................................. 97 Compass calibration............................................................................ 98 Compass Offset ................................................................................. 100 Wind Offset................................................................................
Simrad AP26 and AP27 Autopilots 6 Trouble shooting ...................................................................................... 118 6.1 Alarms ............................................................................................... 118 7 Spare Parts List........................................................................................ 123 8 Technical Specifications .......................................................................... 126 8.1 AP26 and AP27 Autopilot System ..
System Description 1 SYSTEM DESCRIPTION 1.1 General Congratulations on the purchase of your new Simrad autopilot system and thank you for selecting what we feel is the most advanced autopilot system available on the market today. Today, Simrad manufactures a complete range of autopilots for all types of vessels, from recreational boats to merchant marine vessels. Our factory for these products, Simrad Egersund AS, is located in Egersund on the southwest coast of Norway.
Simrad AP26 and AP27 Autopilots 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. 1.
System Description AUTOPILOT COMPUTER AP27 CONTROL UNIT RATE COMPASS REVERSIBLE PUMP RF300 RUDDER FEDDBACK Figure 1-2 AP27 Basic System 1.4 AP26 Control Unit A compact autopilot control for panel, bulkhead or bracket mounting. It has a multifunction LCD display for readout of autopilot data, mode keys and a rotary course knob. It has two Robnet2 connectors for system interconnection and expansion and two SimNet connectors for control and data sharing with other Simrad products.
Simrad AP26 and AP27 Autopilots Autopilot computer comparison chart: AC10 AC20 (AC40) Supply voltage 10-28 V 10-40 V Motor current (continuous/peak) 6/10 A 10/20A (20/40A) Clutch/bypass current 1,5 A* 1,5 A* Number of control units 2 7 NMEA 0183 ports (input/output) 1 2 Solenoid output x x Input for NFU control x x External alarm x Radar clock/data interface x Input for NMEA compass x * 3A on later models. 1.
System Description floating ring core in a fluxgate coil and transformed to a digital signal read by the autopilot steering computer. RFC35 can operate as a low cost back-up compass for the AP26 and AP27 autopilots. NMEA compass (optional) A well performing compass that outputs NMEA 0183 HDT or HDG messages at 10 Hz can be connected directly to the AC20 or AC40 autopilot computer. It is absolutely necessary for the autopilot that the heading rate is minimum 10 Hz.
Simrad AP26 and AP27 Autopilots 1.9 Optional equipment A series of optional equipment are available for the basic AP26 and AP27 systems. R3000X Remote Control A small handheld remote control with two push buttons for power steering or course selection (port and starboard), and one push button with built-in lighted indicator for limited mode change. JS10 Joystick The JS10 Joystick is a Non-Follow-Up steering lever designed for indoor and outdoor console mount.
Installation 2 OPERATION WARNING ! An autopilot is a very useful navigational aid, but DOES NOT under any circumstance replace a human navigator.
Simrad AP26 and AP27 Autopilots STBY PWR NAV WIND SETUP AUTO DODGE INFO Figure 2-2 AP27 Front Panel The control units shown above can operate as a stand alone unit in an autopilot system or combined in a multistation system. In a multistation system the command can easily be transferred from one unit to another. Units not in control will display "Inactive" and/or .
Installation 2.2 Note ! ON/OFF - Standby mode At first time turn on see paragraph 4.1. A single press on the STBY button switches the system ON and the following status displays are shown: Autopilot model Software version Simrad AP26 SW 1.0.00 HW rev. 00 Sn xxxxxx Software release Hardware revision SimNet no. Autopilot computer model Software version Power board revision Main board revision Simrad AC20 SW 1.0.00 Software release P00 M00 S000 Self check SW and HW revisions shown are examples only.
Simrad AP26 and AP27 Autopilots A long press (2-3 sec.) on the STBY button switches the system OFF and during this time, the alarm will sound. Note ! In an emergency, it is possible, on a multistation system, to turn OFF the system at any control unit by pressing the STBY button for 2-3 seconds. STBY mode is the mode that is used when steering the boat at the helm. Flashing course knob icon When the course knob and the PORT/STBD buttons are used for settings etc.
Installation Use the wheel to bring the "rudder" to midship position. Turn the wheel from lock to lock (H.O. to H.O.) and count the exact number of turns. Then start from one lock position and turn the half number of turns. Press AUTO and then STBY. The zero point is now set and the display will show: Follow the operating instructions on the following pages. There is no further need for zero point settings until next time you turn the autopilot on. 2.
Simrad AP26 and AP27 Autopilots 2.5 Non-Follow-Up steering (NFU) In Standby mode, the NFU display is presented when the PORT or STBD button is pressed. The rudder will move as long as the button is pressed and the rudder angle is shown on the display. Activates PORT rudder command Note ! 20 Activates STBD rudder command When a NFU steering lever or remote control is operated, other control units become “Inactive”.
Installation 2.6 R3000X Remote Control (NFU) SIMRAD Push button for Port and Stbd commands STBY-AUTO STBY/automatic. Automatic modes are active when the lamp is lit. Simrad R3000X 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. Note! If you keep the button pressed, it will automatically change the setting in increments of 3° per second.
Simrad AP26 and AP27 Autopilots 2.8 Automatic Steering When AUTO mode is selected, the autopilot automatically picks the current boat heading as the set course and maintains the simultaneous rudder angle. This gives a bumpless transfer at the mode change. The main Auto mode display shows the mode index and the set course.
Installation button. The autopilot will immediately counteract the turn and the boat will continue straight ahead on the heading read from the compass the very moment you pressed the AUTO button. Automatic steering mode New “caught” heading: 305° Compass reading: 303° M (magnetic) or T (true) Rudder angle: 00°. Steering parameter: LO-A Regain manual steering by pressing the STBY button 2.
Simrad AP26 and AP27 Autopilots 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Speed ters me ara p se pon res O L s pon res I H ters me ara p e Transition to LO parameters with increasing speed: 10 Knots Transition Speed set to 9 Knots Transition to HI parameters with decreasing speed: 8 Knots Sailboat When sailing in WIND mode, the parameters are automatically changed by the direction of the wind as per below or by the boat speed.
Installation To toggle between LO and HI parameters, press the "AUTO" button two times quickly. 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. Just make a quick double press on the AUTO button. 2. The manually selected setting (HI or LO) will override the automatic selection and remain in effect until you re-enter any automatic mode from STBY. 2.
Simrad AP26 and AP27 Autopilots 2.12 Dodge in AUTO Dodging is useful in situations where you need to quickly take control of the helm to steer around an obstruction, and then resume the previous set heading. Dodging is activated by a quick double press on the TURN/DODGE/INFO button. When in DODGE mode the displayed set course is the last one set prior to activating the dodge function.
Installation 2.13 Tacking in Auto mode The tack function is only available 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. Tacking should only be performed into the wind and must be tried out in calm sea conditions with light wind to find out how it works on your boat.
Simrad AP26 and AP27 Autopilots • The autopilot autosteering must be tested and determined satisfactory. • The navigation receiver (GPS, Chart Plotter) must be in full operating mode with adequate signal characteristics for valid position and navigation data. • At least one waypoint must be entered and selected as the current “Go to” waypoint.
Installation NAV − NAV mode − Course to steer (CTS): 260 is set internally by the autopilot to steer the boat onto the track line. − Cross track error (XTE): 0.010 nm to stbd. For Cross Track Error, the number of decimals shown depends on the output from the GPS/chart plotter. Three decimals give a more accurate track keeping.
Simrad AP26 and AP27 Autopilots Regain manual steering by pressing the STBY button Setting the waypoint arrival circle For route navigation it is recommended to use automatic waypoint shift/change at a set waypoint arrival circle. The arrival circle should be adjusted according to boat speed. The higher speed, the wider circle. The intention is to make the autopilot start the heading change in due time to make a smooth turn onto the next leg.
Installation 2.15 Dodge in NAV When dodging in NAV mode, the course displayed as Course To Steer (CTS) is the boat’s recommended heading. However, the previous set course is stored by the autopilot. When DODGE is flashing on the display, the autopilot is no longer in control of the steering and you must either steer the boat manually or take control using either Non-Follow-up steering or Follow-up steering. On manual steering, the clutch (or bypass valve) in the drive unit will be disengaged when dodging.
Simrad AP26 and AP27 Autopilots 2.17 Wind vane steering Prior to entering WIND mode the autopilot system should be operating in AUTO, with valid input from the selected wind transducer. The WIND mode is only available if the system has been set up for SAIL-boat in the Installation Menu, and the NAV/WIND source is set to WIND under the USER SETUP menu. (Refer to page 40). Enter the WIND mode by pressing the NAV/WIND/SETUP button.
Installation Regain manual steering by pressing the STBY button 2.18 Tacking and gybing in Wind mode In WIND mode there is a tacking and gibing 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 wind angle of less than 90 degrees. The tacking operation will immediately mirror the set wind angle to the opposite side. A tacking-message will flash on the display for 5 seconds.
Simrad AP26 and AP27 Autopilots Gybing 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. With the main sail safely hauled, the wind side may be changed. This is done by pressing either PORT or STBD buttons depending on the way the boat should continue to turn.
Installation 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 set wind angle. Additional rudder will be commanded to keep the wind on the same side as the set wind angle. Caution ! 2.19 The tack and gybe prevent functions are not a guarantee against getting into a hazardous situation. If the effect of the rudder and/or drive unit is not adequate, it may happen.
Simrad AP26 and AP27 Autopilots [1] [2] [4] [3] [7] [5] [6] [8] Figure 2-3 36 20221586B
Installation Operating in WINDNAV mode Refer to Figure 2-3 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. • Information about when it is time to head directly towards the waypoint, Distance To Turn (DTT) and Estimated Time to Turn (ETT) are displayed.
Simrad AP26 and AP27 Autopilots 2.20 Multiple station system In normal operation control is accessible from every control unit connected to the autopilot system. One control unit is "active" and provides the user with access to all functions. All remaining control units are "inactive" and have no effect on mode changes or course selection. A single press on any of the mode buttons on an "inactive" control unit will allow transfer of command and make it "active". 2.
Installation 2.22 User Set-up Menu In the AP26 and AP27, all modes except NFU and FU have a complemental User Set-up menu. You can easily access the setup menu by a quick double press on the NAV/WIND/SETUP button.
Simrad AP26 and AP27 Autopilots Nav/Wind This parameter will only be available if ‘Boat type’ is set to ‘Sail’ in the Installation/Dockside menu (see Dockside settings, page 88). The ‘Nav/Wind’ parameter will configure the active mode on the NAV/WIND button. The following alternatives are available: • NAV • WIND Auto Wind steering will be disabled when the ‘Nav/Wind’ parameter is set to ‘NAV’. Then the normal NAV mode for power boats is activated when pressing the NAV/WIND button.
Installation ‘WIND Apparent’ is selected when you only want to steer to apparent wind. Apparent wind steering is preferred when you want to achieve maximum boat speed. The autopilot will try to maintain a constant apparent wind angle to get maximum thrust from a given trim of the sails. ‘WIND True’ is selected when you only want to steer to true wind. When sailing in closed waters, the apparent wind angle may change temporarily due to wind gusts. It may then be preferred to sail to the true wind.
Simrad AP26 and AP27 Autopilots Instrument Select Select the contents of the instrument page(s) to be available under the DODGE/TURN/INFO button (page 46). Step through the list of instrument pages by using the PORT or STBD button. Select the wanted information by rotating the course knob to fill the squares.
Installation Notes ! 1. Simrad products will be identified by the product name provided the data is available on SimNet. If data is provided via an NMEA0183 port on the autopilot computer, the display will read NMEA-1 or NMEA-2. NMEA2000 products will have a special ID. 2. See note on page 74 and note 3 below. 3.
Simrad AP26 and AP27 Autopilots DisLog Select the Log source. Depth Select the source for depth data. 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. The default value is 1°, which is the preferred setting.
Installation Response The Autotune function in the AP26 and AP27 is so refined that 80-85 % of the boats will need no further adjustments of the steering parameters. On some boats, however, or at particular sea conditions a fine tuning of the steering parameters may improve the performance of the autopilot. The Response control allows you to make this fine tuning. It can be set to seven levels. Level 3 (default) has the values of Rudder and Counter Rudder parameters set by the Autotune function.
Simrad AP26 and AP27 Autopilots If the actual wind angle is S-ing around the set wind angle or the rudder activity is too high, the ‘Wind response’ should be reduced. Range: 1 – 7 Default: 3 See also other relevant settings for WIND mode operation under STANDBY mode in this chapter. 2.23 INFO menu A number of instrument pages are available under each mode screen if the required NMEA 0183 sentences are provided (see paragraph 8.1) or the information is available on SimNet (page 110).
Installation Nav mode For Nav mode the alternative mode screen gives you the name of the waypoint, bearing and distance to waypoint and rudder angle. This screen is also among the INFO pages. Step or scroll through the available instrument screens by pressing the PORT or STBD button or using the course knob.
Simrad AP26 and AP27 Autopilots Track data Cross Track Error Distance to Waypoint Position Latitude Longitude Nav data Waypoint ID Bearing Position – Waypoint Nav data Course Over Ground Speed over ground Nav data Course Over Ground Bearing Position – Waypoint Sea Temperature If you prefer not to have all the instrument pages available in the INFO menu, you may remove pages under the User setup menu. See page 42. Return to last instrument screen by a long press on the TURN/DODGE/INFO button.
Installation INFO menu flowchart Long press DODGE INFO 11 12 1 10 2 9 3 8 4 7 Toggle 3-5 sec. time-out 11 12 Long press 3-5 sec.
Simrad AP26 and AP27 Autopilots Alternative mode screens in STBY, AUTO and NAV Main (STBY, AUTO, NAV) Alternative Long press 11 12 1 10 DODGE INFO 2 9 3 8 4 7 6 5 3-5 sec. time out 3-5 sec. time out 11 12 Toggle DODGE INFO Long press 1 10 Long press 2 9 3 8 DODGE INFO 4 7 6 5 INFO menu and Main screen, active unit 3-5 sec.
Installation 3 INSTALLATION 3.1 General This section provides detailed information required successfully installing the AP26 andAP27 Autopilot system.
Simrad AP26 and AP27 Autopilots c) Compass Offset adjustment d) Automatic tuning e) Viewing parameters 9. Test Autopilot Operation at Sea (refer to Sea Trial instructions, pages 96, 112) 10. Provide the user with training (Page 113) 3.3 Unpacking and handling Care should be taken when unpacking and handling the equipment. A visual inspection should be made to see that the equipment has not been damaged during shipment and that all components and parts are present according to the packing list.
Installation 3.5 Autopilot System Layout STBY STBY PWR PWR AUTO AUTO NAV WIND NAV WIND SETUP SETUP DODGE INFO DODGE INFO STBY AUTO pfjo^a=oPMMMu STBY AUTO PWR SPEED NAV SETUP TURN Figure 3-1 Autopilot system layout with options 3.6 RF300 Rudder feedback installation The RF300 Rudder feedback unit mounts close to the rudder, and is mechanically linked to the rudder tiller arm or rudder quadrant. Refer to Figure 3-2 for the recommended mounting arrangement.
Simrad AP26 and AP27 Autopilots Attach the ball joint to the tiller arm, and connect the transmitter rod to the ball joint at the rudder tiller arm. Turn the helm wheel to set the rudder tiller arm to approximate centre position. Rotate the RF300 transmitter lever until it is set to centre position. (Use the alignment mark to line up the transmitter lever to be opposite the cable entry into the feedback.). Note ! Carefully observe the alignment marks.
Installation AUTOPILOT COMPUTER MAIN PCB RF RF + Rudder Feedb. * * NON POLARIZED (COLOR INDEPENDENT) Figure 3-3 RF300 connection 3.7 Autopilot computer installation The autopilot computer is designed to operate in a location that provides ambient temperatures below +55°C (+130°F). Note ! The autopilot computer units (AC10, AC20 and AC40) are not weatherproof and should be mounted vertically as shown in a dry place between the control unit and the drive unit.
Simrad AP26 and AP27 Autopilots Refer to the table below for recommended cable sizes. Cable length 1. Breaker panel to autopilot computer. 2. Autopilot computer to Drive Unit motor (Length refers to each of the two cables) 3.9 Drive Unit Voltage 12 V 24 V AWG mm2 AWG mm2 Up to 3 m (10 ft.) 12 2,5 12 2,5 Up to 6 m (20 ft.) 10 4 10 2,5 Up to 10 m (32 ft.) 8 6 10 4 Up to 16 m (52 ft.
Installation Note! The Mains input is not polarity protected on AC40.
Simrad AP26 and AP27 Autopilots 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 60 onwards. Installation instruction for the drive units are found in the manual for the individual units. The maximum drive current capability of the AC10, AC20 and AC40 autopilot computers are different.
Installation LINEAR DRIVE UNITS MOTOR VOLTS AUTOPILOT COMPUTER MAX STROKE mm (in.) PEAK THRUST kg (lb.) MAX RUDDER TORQUE Nm (lb.in.) HARDOVER TIME sec. (30% load) PWR. CONSUMP. TILLER ARM mm (in.
Simrad AP26 and AP27 Autopilots PREVIOUS MODELS OF DRIVE UNITS Model Autopilot computer Drive unit voltage Input voltage (Mains) Drive output Interface to steering gear RPU100 (1,0l) RPU150 (1,5l) RPU200 (2,0l) (Reversible hydraulic pump) RPU1 (1,4/2,0l) RPU3 (3,8/5,0l) AC20 AC20 AC20 12V 12V 24V 12,24,32V Proportional rate Hydraulic plumbing AC10 AC10 12V, 24V 24V, 24V Solenoid valves, on/off Hydraulic plumbing MRD100 (Reversible mechanical drive) AC40 AC20 12V 24V 12,24,32V 24,32V 12V
Installation Connecting a hydraulic linear drive HYDRAULIC LINEAR DRIVE AUTOPILOT COMPUTER POWER PCB TB1 TB2 TB3 TB4 TB5 TB6 TB7 Sol. -Motor Sol. -Motor Bypass Clutch Single pole clutch/bypass switch Figure 3-6 Connecting a hydraulic linear drive Connecting a solenoid valve AUTOPILOT COMPUTER SOLENOID VALVE POWER PCB TB1 TB2 TB3 TB4 TB5 TB6 Sol. -Motor Sol. gnd Sol. gnd Sol. -Motor Sol. TB7 Sol.
Simrad AP26 and AP27 Autopilots 3.11 Control unit installation Avoid mounting the control unit(s) where it is easily exposed to sunlight, as this will shorten the lifetime of the display. If this is not possible, make sure the units are always covered with the white protection cover when not used. Caution ! Do not install the control unit where moisture at the rear can be present. It could cause damage by entering the breathing hole or by coming into contact with the electrical connectors.
Installation 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. • Apply the front panel corners. • Use the two locking knobs to assemble the cradle with the left and right brackets and adjust the control head to best viewing angle.
Simrad AP26 and AP27 Autopilots 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 the total cable length by connecting all Robnet2 units to the nearest available Robnet2 connector. Total length of Robnet2 cable installed in a system should not exceed 50 m (165').
Installation AP26 CONTROL UNIT REAR VIEW AUTOPILOT COMPUTER MAIN P CB TB15 On-Off Vsys Vsys+ Bus+ Bus Bn Wh Pnk Gry Yel ROBNET Figure 3-11 Control unit connection J1 and J2 (left) are Robnet2 connectors. J3 and J4 are SimNet connectors. AP27 connection If a Simrad AP27 is part of the system, use the Robnet2 connector in a free receptacle (see Figure 3-9). Alternatively cut the connector from the cable and connect the wires in parallel with the cable shown on Figure 3-11 using the same colour code.
Simrad AP26 and AP27 Autopilots mounting location. As the heading is displayed on the 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. It can be mounted on deck or bulkhead, athwartship or alongship and has a 15 m (99’) cable with a Robnet2 connector.
Installation RATE COMPASS AP16, AP25, AP26 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. 3.14 RFC35 Fluxgate Compass installation (Optional back-up) The RFC35 Fluxgate Compass is a magnetic sensor, which means you have to take the same precautions at installation as for the standard RC36 (see previous page).
Simrad AP26 and AP27 Autopilots 3.15 R3000X Remote Control installation R3000X should be mounted in the supplied bracket that can be fixed by four mounting screws. The unit is weather proof and can be mounted outdoor. R3000X REMOTE CONTROL AUTOPILOT COMPUTER POWER PCB T B 1 T B 2 TB3 TB4 TB5 TB6 TB8 TB7 Gnd Stbd Port Lamp Yel G n R ed Blu REM OTE Figure 3-15 R3000X connection 3.16 JS10 Joystick Refer to separate installation procedure for JS10 Joystick. 3.
Installation S35 STEERING LEVER AUTOPILOT COMPUTER PO W ER PC B TB7 REMOTE TB1 TB2 TB3 TB4 TB5 Gnd Port Stbd Grn Pn k/ G r y Ye l Br n / W h N O T E! D i s r e g a r d t h e co l o r c o d e on the ter mi nal lab el. Lamp TB6 Figure 3-16 S35 connection The unit is opened by removing the three screws on the back cover. Inside are two sets of micro-switches, a printed circuit board with a plug-in terminal and a jumper strap. 3.
Simrad AP26 and AP27 Autopilots SimNet network cables A SimNet unit has one or two yellow SimNet connectors. There are no dedicated “in” or “out” connectors. 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. SimNet cables are available in 0.3 m (1 ft.), 2 m (6.6 ft.), 5 m (16.6 ft.) and 10 m (33 ft.) length all with plugs at both ends.
Installation `lj_f a^q^ `lj_f pfjo^a=fpNO pfjo^a=fpNO pfjo^a=fpNO STBY PWR ifdeq ^i^oj qfjbo rmmbo fkcl iltbo fkcl ifdeq ^i^oj qfjbo rmmbo fkcl iltbo fkcl ifdeq m^db rmmbo fkcl iltbo fkcl INFO SETUP 10 10 AUTO 1 NAV WIND 1 TURN DODGE Figure 3-17 SimNet network, small system `lj_f a^q^ `lj_f pfjo^a=fpNO pfjo^a=fpNO pfjo^a=fpNO STBY PWR ifdeq ^i^oj qfjbo rmmbo fkcl iltbo fkcl ifdeq ^i^oj qfjbo rmmbo fkcl iltbo fkcl ifdeq m^db rmmbo fkcl iltbo fkcl INFO SETUP 10 10
Simrad AP26 and AP27 Autopilots `lj_f `lj_f pfjo^a=fpNO ifdeq ^i^oj qfjbo rmmbo fkcl pfjo^a=fpNO iltbo fkcl ifdeq ^i^oj qfjbo rmmbo fkcl a^q^ `lj_f pfjo^a=fpNO pfjo^a=fpNO iltbo fkcl ifdeq ^i^oj qfjbo rmmbo fkcl iltbo fkcl ifdeq m^db rmmbo fkcl iltbo fkcl STBY PWR AUTO NAV WIND DODGE INFO Figure 3-19 SimNet/NMEA2000 network, medium system Notes ! 1. Maximum total length of SimNet cable is 40 m (130 ft.) excluding the 30 m (99 ft.) of masthead cable. 2.
Installation `lj_f STBY PWR INFO SETUP NAV WIND pfjo^a=fpNO 10 10 AUTO 1 1 TURN DODGE ifdeq ^i^oj qfjbo rmmbo fkcl a^q^ `lj_f pfjo^a=fpNO pfjo^a=fpNO iltbo fkcl ifdeq ^i^oj qfjbo rmmbo fkcl iltbo fkcl ifdeq m^db rmmbo fkcl iltbo fkcl Figure 3-20 Robnet2 and SimNet network 20221586B 73
Simrad AP26 and AP27 Autopilots STBY STBY PWR PWR AUTO AUTO NAV NAV WIND WIND SETUP DODGE DODGE INFO Figure 3-21 Robnet2, SimNet and Roblink network Notes ! 1. Maximum total length of SimNet cable is 40 m (130 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. However, if you want to have full redundancy and SimNet control, e.g. select sources, you have to connect the actual unit to SimNet. 3.
Installation 3.20 Single NMEA input/output NAV RECEIVER OR PLOTTER (NMEA talker) AUTOPILOT COMPUTER MAIN PCB TB13 TB14 Gnd RX1+ RX1 Sys. sel. Vbat+ TX1 TX1+ NMEA listener NMEA Input 1 NMEA Output1 Note IS15 RUDDER IS15 COMPASS RADAR Figure 3-22 Single NMEA connection Caution ! 3.21 If an IS15 Instrument is powered from TB14 Vbat+ and Gnd, please observe that Vbat output voltage will follow mains supply voltage (IS15 Compass = 12V only!).
Simrad AP26 and AP27 Autopilots 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– HDT (True) or HDG (Magn.) depending on heading source. RSA Rudder angle 3.
Installation 3.24 Radar Clock/Data SIMRAD/ ANRITSU OR FURUNO RADAR AC20/AC40 AUTOPILOT COMPUTER POWER PCB TB8 TB9 TB10 Clk_c Clk_h Data_h Data_c R adar Figure 3-25 Radar Clock/Data connection 3.25 IS15 Instrument installation For installation and operation of the IS15 instruments refer to separate manuals. There are two options for interfacing the IS15 SimNet (see page 69) and NMEA0183. The SimNet interface is recommended and you need an AT15 Active Tee as an interface item (page 74).
Simrad AP26 and AP27 Autopilots If IS15 Expander is used in the instrument system, the NMEA connections are made to this unit. See Figure 3-27.
Installation 3.26 External Alarm The external alarm circuit has an open collector output for an external alarm relay or buzzer. The operating voltage for the circuit is the main supply voltage. Max. load on external alarm output is 0.9 Amp. AUTOPILOT COMPUTER POWER PCB TB6 TB7 TB8 TB9 Ext. alarm Figure 3-28 External alarm connection 3.27 Caution ! LF3000 Linear Feedback The rod of the LF3000 is not locked in place in the cylinder.
Simrad AP26 and AP27 Autopilots the bolt. Secure the feedback rod to the retainer plate using the two washers and the cap nut provided. Adjust the location of the LF3000 Linear Feedback to allow 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. Tighten all nuts and the mounting bracket. Turn the helm slowly by hand to the stop on either side, check that the rod does not bind up in any direction.
Installation Electrical connection LFI3000 Mk2 LINEAR FEEDBACK INTERFACE TB1 AUTOPILOT COMPUTER MAIN PCB TB2 RF RF+ Green Yellow Brown White White Brown Rudder Feedb.
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Maintenance 4 CONFIGURATION AND SETUP 4.1 First time turn on Before attempting to turn on the autopilot and perform an Installation Setup, the hardware installation and electrical connections must be completed in accordance with the installation instructions. The design of the autopilot includes advanced features that have simplified the installation and setup of an autopilot. This is the start-up screen that is presented the first time you turn on your autopilot by pressing the STBY/PWR button.
Simrad AP26 and AP27 Autopilots 4.2 Note ! Description of Installation Settings The installation settings must be performed as part of the installation of the autopilot system. Failure to do so correctly may prohibit the autopilot from functioning properly! The Installation menu can only be accessed in STBY mode.
Maintenance • The Installation Settings are global except for display units and language, enabling settings to be distributed to all control units in the system. • The Seatrial settings are dependent on successful completion of the Dockside settings. 4.3 Installation Menu The Installation Menu is presented on the autopilot display by pressing and holding the NAV/WIND/SETUP button for 5 seconds. Note ! The INSTALLATION MENU is different from the USER SETUP MENU.
Simrad AP26 and AP27 Autopilots INSTALLATION MENU ENTER INSTALLATION MENU BY PRESSING AND HOLDING THE NAV BUTTON FOR 5 SECONDS LANGUAGE MENU LANGUAGE ENGLISH DEUTSCH FRANCAIS ESPANOL ITALIANO NEDERLANDS SVENSKA NORSK SYMBOLS SELECT OR CONFIRM BY COURSE KNOB PROCEED TO NEXT MENU ITEM BY PRESSING STBD BUTTON REVERT TO PREVIOUS MENU ITEM DOCKSIDE MENU Mode in STBY ? Yes DOCKSIDE No BOAT TYPE DRIVE UNIT VOLTAGE RUDDER CAL STBD RUDDER CAL PORT RUDDER TEST? DRIVE ENGAGE RUDDER DEADBAND WIND SETUP MIN.
Maintenance Language selection To access the language selection in the Installation Menu, confirm “Yes” by turning the course knob clockwise The autopilot can present the display text in eight different languages: English, Deutsch, Francais, Espanol, Italiano, Nederlands, Svenska and Norsk. Turn the course knob to select the language you wish to use. Continue to next item in the menu by pressing the STBD button, or leave the menu by pressing the STBY button. 4.
Simrad AP26 and AP27 Autopilots Select STANDBY mode and enter the Installation Menu as previously described. Select Dockside by pressing STBD button and confirm by rotating the course knob clockwise. Boat type Actual boat type is selected by turning the rotary course knob. The options are: Planing, Displacement and Sail. Type of boat selected will affect the steering parameters, and the functions available in the autopilot system. Select appropriate Boat type and press STBD button.
Maintenance Rudder Feedback Calibration Make sure the RF300 is installed and aligned as pr. instruction in section 3.6 (or eventually section 3.27 for LF3000). This function enables you to compensate for any non-linearity in the transmission between the rudder and the rudder feedback. Confirm Rudder feedback calibration to STBD by turning the course knob clockwise. Manually turn the helm/wheel to starboard until the rudder stops at starboard lock (H.O.).
Simrad AP26 and AP27 Autopilots Rudder Test Note ! If the boat uses power assisted steering, 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 midship position before starting the test. Caution ! Stand CLEAR of the wheel and do not attempt to take manual control of the wheel during this test! Activate the automatic rudder test by turning the course knob clockwise.
Maintenance Test of LF3000/LFI3000 Mk2 feedback 1. Align engines to centre position; “zero rudder”. 2. Rev engines to 3-4000 rev/min and observe the rudder angle indicator on the autopilot, a 2° change in the reading should be accepted. 3. If the rudder angle exceeds 2°, connect the screen on the TB1 cable to the centre block terminal and repeat item 2 (See Figure 3-30). If this gives a better result keep the screen connected. Proceed to next menu item by pressing STBD button.
Simrad AP26 and AP27 Autopilots Rudder Deadband The rudder deadband function is adaptive and is continuously operative. It prevents the rudder from hunting and the adaptive function optimizes the deadband to the speed of the boat and the pressure on the rudder. If the auto-setting does not perform properly due to high inertia from the wheel or a loose steering gear, it can be adjusted manually. Adjust the Rudder deadband by rotating the course knob.
Maintenance Minimum wind angle (NORMAL) The ‘Minimum wind angle’ is the minimum apparent wind angle that will keep the sails well shaped and give an acceptable thrust. This parameter will vary from boat to boat. The ‘Minimum wind angle’ applies in the tack-prevent function. It also applies when the autopilot is navigating in Wind mode. Range: 15 – 90° Default: 30° Minimum wind angle (RACING) If ‘Wind setup’ is set to RACING, you can set different minimum wind angles for port and starboard.
Simrad AP26 and AP27 Autopilots Tack time (RACING) When performing a tack in WIND-mode, the rate of turn can be limited. This will give single handed sailors time to handle the boat and the sails during a tack. The tack time is the time needed for the sailor to initiate the tack, start using the winches and hauling the foresail from one side to the other. A turn performed without shifting the wind side, will also be made at a reduced turn rate.
Maintenance 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. Use the course knob to select the connected type of radar. Note ! 4.6 This setting is not available in the AC10 Autopilot Computer. Display units Select Display units by pressing STBD button and confirm by rotating the course knob clockwise.
Simrad AP26 and AP27 Autopilots 4.7 Caution ! Sea Trial The Sea Trial must always be performed in open waters at a safe distance from other traffic. The Sea-trial menu can only be accessed if the Dockside Settings are completed and confirmed.
Maintenance Set Rudder zero This adjustment should be made in calm sea and side forces from wind or current should be avoided. • Bring the boat up to cruising speed, and head directly into the wind. • If the boat has twin engines, synchronize the engine RPM's. • Set the trim tabs and stabilizers to have no effect on the boats heading. • Steer the boat manually on a steady course. • Confirm the rudder ZERO position by rotating the course knob clockwise. Press STBD to proceed to next menu item.
Simrad AP26 and AP27 Autopilots Compass calibration This function will activate the compass calibration procedure for Simrad compasses connected to Robnet2 and the Autopilot Computer terminals (HS). Notes ! 1. The RC36 Rate Compass that comes with the autopilot as standard will store the calibration and off-set data in its own memory. 2. Compass calibration for a second compass connected to the HS terminal will be stored in the Autopilot Computer memory. 3.
Maintenance 4. When the calibration is completed, (after having made approximately 1 1/4 turns), it will be confirmed by the display reading “Confirmed”. Compass deviation The heading from a magnetic heading sensor will normally have a deviation when compared with the actual direction of the earth’s magnetic field. This is caused by interference from the boat’s local magnetic field. The deviation will be at a minimum if the compass is placed as far as possible from any magnetic object on board.
Simrad AP26 and AP27 Autopilots Compass Offset After calibration, also check the compass readout against a known reference, a compensated compass or a bearing. If the reading has a fixed offset, proceed to next menu item by pressing STBD button or return to STANDBY mode by pressing the STBY button. Note ! Offset correction is always performed after the calibration. If you use COG as a reference for the offset remember it has to be a magnetic reading.
Maintenance 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. Steer the boat directly into the wind with a damping of 15s. Keep the bow a steady heading for 15-20 sec. and read the wind angle. If necessary turn the course knob to input an off set that makes the display read Wind 000°.
Simrad AP26 and AP27 Autopilots Depth Offset Note ! This adjustment only applies to “smart” depth transducers that outputs depth on NMEA2000 format. NMEA0183 sentence ‘DPT’ contains offset and the depth reading is from the surface. NMEA0183 sentence ‘DBT’ contains no depth offset and the reading will be from the position of the transducer. When the depth offset is set to zero, the indicated depth is from the transducer to the bottom.
Maintenance It also is recommended to perform the Automatic tuning steering East or West, as this will yield the best balanced parameters. Note ! After the Automatic tuning has been completed the rudder must be controlled manually, as the autopilot has returned to STBY mode. Caution ! The Automatic tuning function will take control of the boat and perform a number of S-turns. It must always be performed in open waters at a safe distance from other traffic.
Simrad AP26 and AP27 Autopilots Rotate the course dial clockwise until the transition speed is set to the desired value in knots. Range: OFF – 30 knots Default: 5 knots Proceed to next menu item by pressing STBD button. Init NAV Sets a firm or soft approach to the track line when entering the NAV mode at the first leg. The approach angle is dependant (adaptive) on the distance (XTE) from the track line and the boat speed. Select firm or soft approach to the track line by rotating the course knob.
Maintenance • HI value parameters for automatic steering at low speed with a power boat and when running with a sailboat. • LO value parameters for automatic steering at high speed and when sailing into the wind or reaching with a sailboat. Step through the menu items by pressing the STBD or PORT buttons. Adjust the value by rotating the course knob. Manual parameter adjust Use course knob to adjust parameters Displayed parameter Boat type Own boat Displacem. & Sail Planing Rudder LO 0.35 0.
Simrad AP26 and AP27 Autopilots Rudder sets the rudder gain which is the ratio between the commanded angle and the heading error. Course to steer Too little Rudder Course to steer Too much Rudder • Too little Rudder and the autopilot fails to keep a steady course. • Too much Rudder gives unstable steering and reduces speed. • Low speed requires more Rudder than high speed. Counter Rudder is the parameter that counteracts the effect of the boats turn rate and inertia.
Maintenance New course Correct setting of counter rudder, ideal response 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. Recall Autotuned? To recall the parameter values that were achieved during the Automatic tuning procedure, rotate the course knob clockwise. When parameter values are recalled, Confirmed is displayed.
Simrad AP26 and AP27 Autopilots System Data Menu Select System data by rotating the course knob clockwise. Step through the menu by pressing the STBD button. The 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. Normally between zero and 45 degrees. Input voltage Mains voltage on input terminals.
Maintenance Decoding The incoming signals are decoded according to a built in priority table in the autopilot. Cross Track Error and bearing information are taken from the NMEA messages with highest priority. For all data items, one of the following codes will be displayed: ––– No data or no NMEA sentence containing the data needed is available at the input port. OK Valid data found INV Message with invalid information.
Simrad AP26 and AP27 Autopilots NMEA signal monitor Near the NMEA terminals in the Autopilot Computer you will find a green monitor LED marked “RX”. A flickering LED indicates that a NMEA signal is received. It does not, however, qualify the contents of the message. Note ! Do not mix up the “RX” LED with the LED marked “TX”. The “TX” LED will always be lit or flickering when the autopilot is on.
Maintenance products in (synchronized). the group STAND ALONE: Source selection for the autopilot will not be transferred to other products in the Simrad Group (no synchronization). Backlight Illumination Set backlight to synchronize with one of the illumination banks (1-3) available on the SimNet, or to STAND ALONE for individual control of the autopilot illumination. Instance number An item to identify units by a number when the autopilot is connected to a NMEA2000 Network.
Simrad AP26 and AP27 Autopilots Master Reset Note ! A Master Reset is part of the final test at the factory, which will reset the memories to factory settings. Unless you need to clear all stored values during the installation setup procedure, you should not perform a Master Reset. Under Service in the Installation Menu, select Master reset of memories by pressing the STBD button and confirm this by rotating the course knob clockwise.
Maintenance • Try the Dodge and U-turn function. • If a Non-Follow Up lever (or handheld remote) is connected, test change of modes and verify port and starboard steering commands of the lever. • Set waypoints into each navigator connected to the system, and verify that the autopilot steers in NAV mode for each NAV source. • If the boat is a sailboat use the WIND mode and try the autopilot at different settings of the apparent wind angle.
Simrad AP26 and AP27 Autopilots • Locating the Mains circuit breaker and the separate SimNet circuit breaker if provided.
Maintenance 5 MAINTENANCE 5.1 Control unit The AP26 and AP27 Control Units 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 detergent). It is important to avoid using chemical cleaners and hydrocarbons such as diesel, petrol etc. Make sure that all open Robnet2 connectors are fitted with a protection cap.
Simrad AP26 and AP27 Autopilots 5.6 Exchange of software programme Autopilot Computer Autopilot Computer EPROM 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. • Squeeze the tool and pull out the EPROM.
Maintenance Autopilot Control Unit You will need a special kit for a PC to perform the programming of the Control Unit. Order the following from Simrad: Programming kit P/N 22088595. Instructions are included. Software download connector Figure 5-2 Part of AP26 PCB Software download connector Figure 5-3 Part of AP27 PCB Remove the cables and unscrew the screws that secure the back cover. Apply a firm pull with your fingers to pull the back cover loose from the connector pins.
Simrad AP26 and AP27 Autopilots 6 TROUBLE SHOOTING An autopilot is a complex system. Its performance dependents on a proper installation and a successful sea trial. In the event of an autopilot failure, the autopilot’s numerous test features will assist you in isolating a probable fault. Audible and visual alarm is provided for every fault being detected. The audible alarm is reset by pressing any button (e.g. by changing mode from AUTO to STANDBY).
Trouble shooting Display readout Shallow water (Only if AP25 is part of the system) Compass data missing Rudder feedback failure (autopilot operates on simulated feedback) Rudder response failure Rudder too slow 20221586B Probable fault Recommended action The depth is inside 1. Carefully observe the actual the set limit or outside depth. the range. 2. Adjust the alarm limit if not Depth data is missing. hazardous. 3. Steer to safe depth, the alarm will reset automatically. 4.
Simrad AP26 and AP27 Autopilots Display readout Probable fault Rudder test failed Following conditions may exist: a) Rudder feedback failure b) Autopilot Computer current overload c) Bypass/clutch overload Rudder moves in only one direction a) Poor connection to one of the solenoids (continuously running pump) b) Faulty Power PCB in autopilot computer Rudder test not completed within 2 min.
Trouble shooting Display readout Failure active Control Unit ACXX current overload Low 15 volt Probable fault Recommended action Active control unit 1. Press the STBY button on an goes silent. "Inactive" unit to reset. 2. Check/repair Robnet2 cable. 3. Replace the control unit PCB. The drive unit shut 1. Check the drive unit and drive unit down due to an installation/Manual steering/ excessive load or a Rudder. short circuit. 2. Disconnect the drive unit.
Simrad AP26 and AP27 Autopilots Display readout Probable fault Recommended action Com. failure with Faulty Autopilot ACXX Computer or poor Robnet2 cable connections from the same. 1. Check Robnet2 connectors and cable. Low supply voltage 1. Verify in the System Data Menu Mains voltage less than 9 Volts 2. Replace Autopilot Computer Main PCB. 2. Switch autopilot off, charge batteries 3. Check/repair battery charger High supply voltage 122 AC20/AC40 Mains 1.
Spare parts list 7 SPARE PARTS LIST AP26 Control Unit 22087910 AP26 Control Unit 22088439 AP26 mounting kit consisting of: 22084529 Cabinet corners 22085807 Gasket 44165181 Screw 3.5x19 44165645 Screw 3.
Simrad AP26 and AP27 Autopilots 22081251 22081715 22088694 22088447 22088462 22081434 22082036 22081350 22081368 AC20 Power PCB Ass'y AC10 Power PCB Ass'y AC40 Power PCB Ass'y AC Main PCB Ass'y (All models) PROM for all autopilot computers AC10/AC20 Base plate AC40 Base plate Main cover Terminal cover RFC35 Electronic Fluxgate Compass 22081459 22081442 22081178 RFC35 Fluxgate Compass Installation accessories consisting of: 20104972 Mounting plate (2) 44140762 Screw 3.
Spare parts list 24005621 Robnet2 cable, 5 m (16’) with two plugs 24005639 Robnet2 cable, 10 m (33’) with two plugs 24005647 24005662 Robnet2 cable 15 m (49’) with one plug Robnet2 joiner SimNet cables and accessories 24005829 SimNet cable 0.3 m (1’) 24005837 SimNet cable2 m (6.6’) 24005845 SimNet cable 5 m (16.
Simrad AP26 and AP27 Autopilots 8 TECHNICAL SPECIFICATIONS 8.1 AP26 and AP27 Autopilot System Boat size and type:..................... Up to 80 feet, Power, Displacement, Sail Steering system types: ............... Hydraulic, Mechanical Inter-unit connection: ................ RobNet2 network or two-wire supply/data System ON/OFF: ....................... From control units Supply voltage:.......................... See autopilot computers Power consumption: ..................
Technical specifications Heading sensors: Standard: ........................... RC25 Rate Compass Options:............................. RFC35 Electronic Fluxgate compass NMEA Compass (Not AC10) Simrad RGC50/RGC10 gyrocompasses * * By GI51 Course Selection:....................... Rotary course dial and push button Alarms: ...................................... Audible and visual, optional external Alarm modes: ............................ Off course, system failures, overload Steering modes: ................
Simrad AP26 and AP27 Autopilots Display: Type: ................................. Backlit LCD matrix display Resolution: ........................ 80 x 32 pixels Colour: ....................................... Black Illumination: .............................. Adjustable in 10 steps Environmental Protection:......... IP56 from front, IP43 from back. Safe distance to compass: .......... 0.3 m (1.0 ft.) Temperature: Operating: ......................... 0 to +55 °C (+32 to +130 °F) Storage: .....................
Technical specifications 8.3 AP27 Control Unit Dimensions: ............................... See Figure 8-2 Weight: ...................................... 0,57 kg (1,25 lbs) Power consumption ................... 3 W Display: Type: ................................. Backlit LCD matrix display Resolution: ........................ 80 x 32 pixels Colour: ....................................... Black Illumination: .............................. Adjustable in 10 steps Environmental Protection:......... IP56.
Simrad AP26 and AP27 Autopilots 8.4 Autopilot Computers Dimensions: ............................... See Figure 8-3 and Figure 8-4 Weight: AC10/AC20 ...................... 1,3 kg (2,9 lbs.) AC40................................. 2,8 kg (6,2 lbs) Supply voltage: AC10................................. 10-28V DC AC20/AC40 ...................... 10-40V DC Reverse voltage protection ........ Yes (not AC40) Power consumption: .................. 5 Watt (electronics) Motor / solenoid drive: AC10:...................
Technical specifications Figure 8-3 AC10/AC20 Autopilot computer - Dimensions Figure 8-4 AC40 Autopilot computer - Dimensions 20221586B 131
Simrad AP26 and AP27 Autopilots 8.5 RC36 Rate compass Dimensions: ............................... See Figure 8-5 Weight: ...................................... 0,9 kg (2,0 lbs) Supply and interface:................. RobNet2 Power consumption: .................. 0,9 watts Automatic Performance: Calibration: ....................... Automatically activated by control head Gain compensation: .......... Automatically adjusted continuously Rate sensor stabilized heading output Accuracy:........................
Technical specifications 8.6 RFC35 Fluxgate compass Dimensions: ............................... Same as RC36. See Figure 8-5 Weight: ...................................... 0,9 kg (2,0 lbs) Supply and output:..................... Polarity independent 2-wire supply with superimposed pulse width modulation Automatic Performance: Calibration: ....................... Automatically activated by control head Gain compensation: .......... Automatically adjusted continuously Repeatability:........................
Simrad AP26 and AP27 Autopilots Transmission link: ..................... Stainless 350mm (13.8") with 2 ball joints. Ball joint stud for rudder arm requires 4.2mm diameter hole and 5mm tap.
Technical specifications 8.8 R3000X Remote Control Dimensions: .... See Figure 8-8 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: ...–25 to +55 °C (–13 to +130 °F) Storage: .......–30 to +80 °C (–22 to + 176 °F) Cable length: ... 7 m, shielded Mounting bracket:....... Supplied Figure 8-8 R3000X - Dimensions 8.9 JS10 Joystick Dimensions: .....................................
Simrad AP26 and AP27 Autopilots 8.10 FU25 Steering Lever Dimensions: ............................... See Figure 8-10 Handle can be mounted pointing upwards or downwards. Weight: ...................................... 1.2 kg (2.6 lbs.) including cable Material:..................................... Polyacetal (POM) Environmental Protection:......... IP56 Power consumption: ................. 3W Safe distance to compass: .......... 0.15 m (0.5 ft.) Temperature: Operating: .........................
Technical specifications 8.11 IS15 Rudder Dimensions: ............................... See Figure 8-11 Weight: ...................................... 225 grams Environmental Protection:......... IP56 from front, IP44 from rear Power requirement: .................. 12/24 VDC, 70 mA (100 mA max with max lighting) Safe distance to compass: .......... 0.15 m (0.5 ft.) Temperature: Operating: ........ –0 to +55°C (+32 to +130°F) Storage: ............................. –30 to +80°C (–22 to +176°F) Scale: .......
Simrad AP26 and AP27 Autopilots Figure 8-11 IS15 Rudder - Dimensions 8.12 SimNet Maximum number of products connected in a network:...................................... 50 Maximum cable length:............. .........................................................120 m (400’) Bit rate of the bus: ..................... .................................................... 250 kbit/second Maximum DC current through a single SimNet plug ......................................... 5A SimNet power supply: ....
Technical specifications 8.13 IP protection Each part of a Simrad autopilot 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. The system is recognised in most European countries and is set out in a number of British and European standards.
Simrad AP26 and AP27 Autopilots 8.14 NMEA and SimNet messages Accept. cond. (N=nav. flag, P= pos.
Technical Specifications Remarks: N N* N* N N N N 3 2 6 2 3 1 4 3 3 6 3 3 4 4 5 2 2 x x 2 x x 20221586B x x c d d d d d d d d x d d d d x d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d 2 1 1 1 2 3 1 2 2 2 2 1 3 1 3* 1 3 1 2 1 3 x x 2 n x x x x 10 10 x x 3 4 x x 2 x x 5 10 10 OutACXX P P* N N P N n AP27 n AP26 n AP25 n AP1
Simrad AP26 and AP27 Autopilots Rudder angle Wind Data Apparent wind angle 1) Apparent wind speed 1) True wind angle True wind speed Depth Data Depth ref transducer Transducer-Keel Offset Speed Data Distance Log Data Temperature Data Speed through water 1) Log distance and trip Water temperature Position Data Present position Lat, Lon 1) COG 1) Magnetic variation SOG 1) Navigation Data To-wp position 1) To-wp ident.
Technical Specifications Remarks: AP26 Out Gateway C AP25 N AP16 127237 N N 65408* 65357* 129284 129283 Indata use d d d x d d d x d d d d d d d d d d d d x x x x d d d x In INFO views Depth+Offset is displayed if x offset is present d d d d d d x x x d d d d d d d d d d d d d d d d d d d d d d d d d d d d 1 1 1 1 1 1 1 x* x* x* 20221586B x * SimNet proprietary x x x x x x x x x x x x *Only transmitted if NMEA183/RC36/RFC35 is source 143
Simrad AP26 and AP27 Autopilots 9 GLOSSARY Apparent wind – The speed and direction from which the wind appears to blow with reference 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. (see arrival circle).
Glossary Magnetic variation - A magnetic compass points to the magnetic north pole. The difference between this direction and true north is the magnetic variation. The amount and direction of this variation is dependent upon where on the earth you are located. NMEA0183 - A format (language) designed to permit communication between various types of marine electronic equipment. In essence this is a two-wire shielded, serial data link, permitting one device to talk while other devices listen.
Simrad AP26 and AP27 Autopilots 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. Normally this point will be identified by Lat/Lon coordinates although in some systems it may be shown by T.D.'s. XTE - Cross Track Error - Used to identify a vessels position relative to a straight line drawn between two waypoints.
Index 10 INDEX A D alarm external, 79 listing, 118 apparent wind, 32, 41, 144 arrival circle, 30 auto setup, 83 automatic tuning, 102 autopilot computer installation, 55 maintenance, 115 specifications, 130 autotrim, 107 backlight, 39 boat type, 88 depth offset, 102 depth source, 43 display units, 95 dockside settings, 87 Dodging, 26 drive engage, 91 Drive out, 90 drive unit hydraulic pumps, 58 installation, 58 linear drive, 58 maintenance, 115 reversible pump, 60 solenoid valve, 61 stern drive, 18 vol
Simrad AP26 and AP27 Autopilots interfacing, 69 IP protection code, 139 L language, 87 layline, 37, 41 linear feedback installation, 79 lock function, 38 log source, 43 loopback, 110 M master reset, 112 minimum rudder, 97 minimum wind angle, 93 modes of operation standby, 17 mounting bracket, 63 panel, 62 multiple station, 38 N Nav source, 43 navigating, 27 NFU Steering lever, 14 NMEA compass, 76 NMEA data, 108 NMEA input/output, 75 NMEA messages, 140 NMEA port test, 110 non-follow-up steering, 20 P paramet
Index system basic, 10 components, 10 specifications, 126 system data, 108 T tack angle, 93 tack time, 33, 94 tacking in auto mode, 27 in wind mode, 33 transition speed, 23, 103 True bearing, 146 True heading, 146 true wind, 32, 41 U user setup menu, 39 user training, 113 20221586B U-Turn, 25 V VMG, 37, 41 W water speed source, 43 water temperature source, 43 wind offset, 101 wind angle source, 43 wind auto, 40 wind calculated source, 43 wind damping, 101 wind response, 45 wind setup, 40, 92 wind shift, 3
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