MANUAL SIMRAD AP26 and AP27 Autopilots 20221586F Sw.1.2.
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 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. Rev. C Correction in text on page 12, 22, 65, 66, 69, 71, 73, 94, 96 and 113. Figure 3-6, 3-9, 3-19 and 4.1 corrected. Part no. for adapter cable page 125 added. Rev. D Updated according to SW 1.2.00. Rev. E Virtual feedback implemented. Minor corrections to text.
Instruction manual Contents 1 System description ..................................................................................... 11 1.1 General ................................................................................................ 11 1.2 How to use this manual....................................................................... 11 1.3 System components............................................................................. 12 1.4 AP26 Control Unit ...................................
Simrad AP26 and AP27 Autopilots 2.5 Non-Follow-Up steering (NFU) ......................................................... 24 2.6 R3000X Remote Control (NFU)......................................................... 25 2.7 JS10 Joystick (NFU) ........................................................................... 25 2.8 Automatic Steering ............................................................................. 26 Heading capture .......................................................................
Instruction manual Operating in WINDNAV mode ............................................................. 51 RACING ............................................................................................. 51 2.22 Multiple station system ....................................................................... 52 2.23 Lock function ...................................................................................... 52 2.24 User Set-up Menu ...............................................................
Simrad AP26 and AP27 Autopilots Panel mounting of AP26..................................................................... 78 Alternative panel mounting of AP26 .................................................. 78 Optional bracket mounting ................................................................. 79 3.12 ROBNET2 network cables ................................................................. 79 AP27 connection ................................................................................. 81 3.
Instruction manual Rudder Test ....................................................................................... 106 Drive engage ..................................................................................... 108 Rudder Deadband.............................................................................. 108 Wind setup ........................................................................................ 109 Minimum wind angle (NORMAL)...................................................
Simrad AP26 and AP27 Autopilots SimNet setup ..................................................................................... 132 Master Reset...................................................................................... 133 Final sea trial ..................................................................................... 134 Providing user training...................................................................... 135 5 Maintenance .......................................................
Instruction manual 8.14 NMEA and SimNet messages........................................................... 162 9 Glossary .................................................................................................... 166 10 Index..........................................................................................................
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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. Simrad manufactures a complete range of autopilots for all types of vessels, from recreational boats to merchant marine vessels. The company's involvement in autopilots began in 1953 with equipment for the North Sea fishing fleet under the brand name Robertson.
Simrad AP26 and AP27 Autopilots Please take time to read this manual to get a thorough understanding of the operation and system components and their relationship to a complete autopilot system. 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 FEEDBACK 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) 6/12 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 RFC35 Electronic Fluxgate Compass (optional) A compact heading sensor from Simrad with 15 m (45 feet) of cable. The direction of the earth's magnetic field is sensed by a 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.
Simrad AP26 and AP27 Autopilots JS10 Joystick The JS10 Joystick is a Non-Follow-Up steering lever designed for indoor and outdoor console mount. It has a spring-loaded return-to-mid-position feature and is equipped with 10 m (33’) of cable and installation hardware. FU25 Follow-Up Steering Lever Note ! Not applicable for Virtual feedback configuration (page 68). The FU25 Follow-up steering lever features a dial with 5° rudder angle markings.
System Description 1.10 Software record When the system is switched on, a status display shows the software versions for the control unit and the autopilot computer. See page 21. Software version Description Note ! 20221586F SW 1.1.00 First issue SW 1.2.00 NoDrift mode implemented. Easy access to NAV source selection. Selectable NAV change limit implemented. Steering parameters can be changed in Auto mode. User Setup menu re-edited. Outboard selectable as boat type in dockside setup.
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Operation 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 .
Operation 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 1.2.01 HW rev. 00 Sn xxxxxx Software release Hardware revision SimNet no. Autopilot computer model Software version Simrad AC20 SW 1.2.01 Software release P00 M00 S000 Power board revision Main board revision 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. Virtual feedback See pages 68 and 111 about Virtual feedback.
Operation After turn on the rudder angle display will alternate between 10 degrees port and starboard to indicate that the "rudder" zero point need be set. 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.
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 Activates PORT rudder STBD command rudder command Note ! 24 When a NFU steering lever or remote control is operated, other control units become “Inactive”.
Operation 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.
Operation Heading capture When in AUTO or NoDrift mode (page 40) this feature allows you to automatically cancel the turn you are in by an instant press on the AUTO or NAV (NoDrift) button. The autopilot will counteract the turn and the boat will continue straight ahead on the heading read from the compass the very moment you pressed the AUTO or NAV (NoDrift) button Automatic steering mode New “captured” heading: 305° Compass reading: 303° M (magnetic) or T (true) Rudder angle: 00°.
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.
Operation 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 Press TURN/DODGE / INFO to enter U-TURN Select STBD U-turn Boat makes STBD U-turn C-turn The autopilot provides a continuous turn feature when in AUTO mode. This may be used for circling 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. Ensure that the C-turn pattern has been selected under the User Set-up menu.
Operation 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. Ensure that the Spiral-turn pattern has been selected under the User Set-up menu. Refer to Turn Pattern select on page 58.
Simrad AP26 and AP27 Autopilots 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 pattern has been selected under the User Set-up menu. Refer to Turn Pattern select on page 58. To enter zigzag turn mode: Press of the TURN/DODGE/INFO button repeatedly until ZIGZAG is flashing in the display. The course change can be set before the turn is initiated (2-70°).
Operation 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 pattern has been selected under the User Set-up menu. Refer to Turn Pattern select on page 58. To enter Square turn mode: Press of the TURN/DODGE/INFO button repeatedly until SQUARE is flashing in the display.
Simrad AP26 and AP27 Autopilots Lazy S-turn The autopilot also provides a lazy S-turn feature when in AUTO mode. The user decides whether the initial turn should be made to Port or to Starboard. Ensure that the lazy S-turn pattern has been selected under the User Set-up menu. Refer to Turn Pattern select on page 58. To enter Lazy S-turn mode: Press of the TURN/DODGE/INFO button repeatedly until LAZY S is flashing in the display. The course change can be adjusted before the turn is initiated (2-80°).
Operation Depth Contour Steering to a depth contour is also 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. Smooth seabed Slope Caution ! Rocky waters Narrow channel Ridge Do not use this feature unless the seabed is suitable. Do not use it in rocky waters where the depth is varying significantly over a small area.
Simrad AP26 and AP27 Autopilots activate the depth contour steering with PORT or STBD button (any of the two). If you do not press PORT or STBD within 1 minute, the autopilot will return to AUTO mode and stay on course. The display has the following menu items: Reference depth The reference depth is captured when the Depth pattern is activated. To change the reference simply use the PORT or STBD button or the course knob.
Operation CCA set to 15 degrees Approaching reference depth from port Reference depth CCA set to 15 degrees Approaching reference depth from starboard Range: (0-50) 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.
Simrad AP26 and AP27 Autopilots 2. Non Follow Up steering by pressing: or or using NFU steering lever and using the course knob 3. Follow Up steering by pressing both: To return from Dodge mode, press one of the following: Selects AUTO mode and returns to the last set course Note ! 2.13 or Selects AUTO mode with the current heading as the set course Using NFU or FU modes while dodging will make “NFU” or “FU” flash instead of “DODGE”.
Operation STANDBY Non-Follow Up steering mode Heading to be maintained by rudder Heading to be maintained by rudder and thruster Heading maintained by rudder Heading maintained by rudder and thruster AUTO mode Note ! 20221586F When operating an On/Off thruster be aware that most electrical thrusters have a built in thermal cut-off switch. The switch will shut off the motor if it is overheating and re-engage it when it has cooled down. The water temperature also affects the running time.
Simrad AP26 and AP27 Autopilots 2.14 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.
Operation 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. NoDrift mode Set course HI/LO parameter Heading NoDrift indicator Note ! To operate in NoDrift mode your GPS/chart plotter must be turned on. Dodge in NoDrift mode This is similar to dodging in Auto mode. 2.
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.
Operation 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.
Operation 2.17 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 2.19 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 54). Enter the WIND mode by pressing the NAV/WIND/SETUP button.
Operation 2.20 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. Any new command given when the message is flashing, will interrupt the tack operation.
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.
Operation 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 ! 2.21 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. Pay particular attention in such situations.
Simrad AP26 and AP27 Autopilots [1] [2] [4] [3] [7] [5] [6] [8] Figure 2-3 50 20221586F
Operation 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 2.22 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.
Operation 2.24 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 setup will configure the active mode under the NAV WIND button. The following alternatives are available: • NAV (Ref page 41) • NoDrift (Ref. page 40) • WIND Auto Wind steering will be disabled when ‘NAV’ or ‘NoDrift’ is selected. Note ! Wind steering is only available if ‘Boat type’ is set to ‘Sail’ in the Installation/Dockside menu (see Dockside settings, page 104). If ‘NAV WIND’ is set to ‘WIND Auto’, wind steering will be enabled.
Operation ‘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 Thruster (only available if a thruster is connected as displayed by the thruster icon). When the thruster selection is set to ON, both thruster and rudder are used for steering. If the boat speed exceeds 6 knots, the thruster steering is automatically disabled.
Operation Manual source select Step through the list of sources using the PORT or STBD button. Select wanted source by rotating the course knob. – – indicates that no source is supplying the data available. 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 90 and note 3 below. 3.
Simrad AP26 and AP27 Autopilots Water temperature Select the source for water temperature (normally the same as the source providing depth data). DisLog Select the Log source. Depth Select the source for depth data. Course Adjust 2 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.
Operation Instrument Select Select the contents of the instrument page(s) to be available under the TURN/DODGE/INFO button (page 62). 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. Contrast The contrast of the display may be adjusted to 10 levels (10 = highest contrast). The setting is stored when the system is turned off. Adjustment is local to the control unit you adjust.
Simrad AP26 and AP27 Autopilots A low response level reduces the rudder activity and provides a more “loose” steering. A high response level increases the rudder activity and provides a more “tight” steering. A too high response level will make the boat start S-ing. Range: 1 – 7 Default: 3 Thruster sensivity (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.
Operation NAV Mode The User setup for NAV mode is similar to the User setup for AUTO mode. It does, however, not include the Nav/Wind and the Source select items. WIND Mode The User setup menu for WIND mode is the same as for NAV mode In addition you have: Wind response If the difference between the set wind angle and the actual wind angle is too big, the ‘Wind response’ can be increased to reduce the deviation. Note ! First make sure that the course keeping is acceptable, i.e.
Simrad AP26 and AP27 Autopilots 2.25 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 132). The INFO menu is accessed by a long press on the TURN/DODGE/INFO button. The main (mode) screens for Standby, Auto and Nav modes have an alternative screen available in the INFO menu. Standby mode The main screen shows current heading, heading source and rudder angle.
Operation Compass Heading source Heading Rudder angle Depth/Speed Depth Speed Apparent wind Apparent wind angle Apparent wind speed True wind True wind angle True wind speed True wind True wind angle VMG to wind Wind direction Wind direction Wind speed Wind shift Wind direction Wind shift Track data Cross Track Error Distance to Waypoint Position Latitude Longitude Nav data Waypoint ID Bearing Position – Waypoint 20221586F 63
Simrad AP26 and AP27 Autopilots 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 59. Return to last instrument screen by a long press on the TURN/DODGE/INFO button.
Operation 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 2 10 DODGE INFO 9 3 4 8 7 6 5 3-5 sec. time out INFO menu and Main screen, active unit 3-5 sec. time out 11 12 1 10 2 9 3 8 4 7 Note ! 6 5 Whenever the INFO menu is active and the mode index is present on an active unit, operating the PORT and STBD button or the course knob will immediately make the main screen reappear.
Installation 3 INSTALLATION 3.1 General This section provides detailed information required to 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 115, 134) 10. Provide the user with training (Page 135) 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 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 rudder feedback unit (page 111). The Virtual Feedback can be used on boats up to 40 ft. 2. In order to benefit from the virtual feedback technology your autopilot system must be using a Simrad rate compass for heading information. 3.
Simrad AP26 and AP27 Autopilots transmission link. The slots enable maximum flexibility to provide the 1:1 mechanical linkage relationship. Note ! Note ! Do not try to remove the transmitter arm from the feedback unit. The unit is factory adjusted and need no further adjustment at installation than described below. As a starting point, it is desirable to set the transmitter rod to the inner limit of the outer slot if possible. (Refer to Figure 3-2).
Installation 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. Observe the RF300 while someone turns the helm wheel through the complete travel from full port to full stbd. rudder to verify that the mechanical linkage to the RF300 is not obstructed. AUTOPILOT COMPUTER MAIN PCB RF RF + Rudder Feedb.
Simrad AP26 and AP27 Autopilots 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 mm2 (AWG14). Signal cables should be 0.5 mm2 (AWG20) twisted pairs. The mains supply cable and the drive unit motor cable should have sufficient wire gauge. This will minimize voltage drop and allow the drive unit to operate at full power.
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 76 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 Drive Engage 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 PCB TB15 On-Off Vsys Vsys+ Bus+ Bus Bn Wh Pnk Gry Yel ROBNET Connect to any of the two Robnet2 connectors 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 JP27 Jack Point and connect as shown on Figure 3-9.
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 instructions supplied with the 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 program contains the necessary items to make a successful installation. 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.
Installation COM BI DATA COM BI SIM RAD IS12 SIM RAD IS12 SIMRAD IS12 STBY ALARM TIMER UPPER INFO L OWER INFO LIGHT ALARM TIM ER UPPER INFO LOWER INFO LIGHT PAGE UPPER INFO INFO LOWER INFO 10 10 AUTO PWR LIGHT SETUP NAV WIND 1 TURN DODGE 1 Figure 3-17 SimNet network, small system COM BI DATA COM BI SIMRAD IS12 SIMRAD IS12 SIM RAD IS1 2 STBY PWR LIGHT ALARM TIM ER UPPER INFO LOWER INFO LIGHT ALARM TIM ER UPPER INFO LOWER INFO LIGHT PAGE UPPER INFO LOWER INFO I
Simrad AP26 and AP27 Autopilots COM BI COM BI SIM RA D IS1 2 LIGHT ALARM TIMER UPPER INFO LIGHT ALARM TIM ER UPPER INFO SIM RAD IS12 SIM RA D IS1 2 SIM RAD IS12 LOWER INFO DATA COM BI LOWER INFO LIGHT ALARM TIMER UPPER INFO LOWER INFO LIGHT PAGE UPPER INFO LOWER INFO STBY PWR AUTO NAV WIND DODGE INFO Figure 3-19 SimNet 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 COM BI STBY PWR INFO SETUP NAV WIND SIM RAD IS12 10 10 AUTO 1 TURN DODGE 1 LIGHT ALARM TIM ER UPPER INFO DATA COM BI SIM RAD IS12 SIM RAD IS12 LOWER INFO LIGHT ALARM TIM ER UPPER INFO LOWER INFO LIGHT PAGE UPPER INFO LOWER INFO Figure 3-20 Robnet2 and SimNet network * The wind transducer has a built in terminator 20221586F 89
Simrad AP26 and AP27 Autopilots 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. 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. AT15 is a NMEA0183/SimNet converter for the IS15 Instrument system.
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 can only operate on 12V.
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 3.23 NMEA Compass input AC20/AC40 AUTOPILOT COMPUTER POWER PCB TB8 NMEA COMPASS TB9 TB10 RX2+ RX2 NMEA Input2 Figure 3-24 NMEA compass connection Notes ! 1.
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 85) and NMEA0183. The SimNet interface is recommended and you need an AT15 Active Tee as an interface item (page 90).
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 (not on AC10). 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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Configuration and Setup 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. Note ! If the autopilot is going to use Virtual feedback (page 68) you must first go to page 111.
Simrad AP26 and AP27 Autopilots “SEARCHING” is flashing as long as the autopilot is searching for data. When the automatic interface setup is finished, “Done press →” is displayed. Press the STBD button to accept. 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. 4.
Configuration and Setup Each group is designed to focus on specific functions and enable quick access when changes need to be made. Some important points regarding the installation settings: • When the autopilot 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) values. The automatic interface prompt will appear (see page 99) and a complete setup has to be made.
Simrad AP26 and AP27 Autopilots • Change the selected item by rotating the course knob in either direction. • Exit the Installation Menu by pressing STBY, AUTO, or NAV/WIND/SETUP buttons. When using the Installation Menu, refer to the diagram "Installation Menu Flow Chart" on next page. Note ! You may proceed through all items in the installation menu by continuing pressing the STBD button.
Configuration and Setup INSTALLATION MENU ENTER INSTALLATION MENU BY PRESSING AND HOLDING THE SETUP 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.
Simrad AP26 and AP27 Autopilots 4.4 Note ! Dockside settings If the autopilot has no rudder feedback unit installed (configured for Virtual feedback), refer to the Dockside settings on page 111114.
Configuration and Setup 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 74 for information. The drive engage/bypass clutch output follows the same voltage as set for the drive unit. It is not possible to select a higher voltage than the input voltage.
Simrad AP26 and AP27 Autopilots The value on the display is the angle read by the rudder feedback unit before any adjustment is made. If the actual rudder angle is different from that of the display, correct the reading by turning the course knob clockwise to increase the value or counter clockwise to decrease the value. See note. Advance to the next step by pressing the STBD button. Manually turn the helm to port until the rudder stops at maximum port rudder.
Configuration and Setup The autopilot will after a few seconds issue a series of PORT and STBD rudder commands and automatically verify correct rudder direction. It detects minimum power to drive the rudder, and reduces the rudder speed if it exceeds the maximum acceptable speed (8°/sec.) for autopilot operation. The Rudder test is verified by the display showing ‘Motor OK’, ‘Solenoids OK’, or ‘Failed’. If ‘Failed’ is given, check for correct electrical connection.
Simrad AP26 and AP27 Autopilots Drive engage This determines the use of the autopilot computer drive engage port. The port voltage is the same as the selected drive unit voltage. Drive engage has the following settings: Bypass/clutch: The port will activate (go high), in all autopilot steering modes, and typically engages a bypass valve on a hydraulic linear drive or a clutch on a mechanical drive when entering any of the active autopilot modes.
Configuration and Setup Note ! The rudder deadband setting is not available when the autopilot is configured for Virtual feedback. Wind setup Wind setup is only available if ‘Boat type’ is set to ‘Sail’ in the Installation/Dockside menu. Wind setup has two levels: NORMAL and RACING. The RACING level will give access to more wind setup items to achieve optimal performance when sailing. Additional setup items also become available in the User setup and the Quick setup menus.
Simrad AP26 and AP27 Autopilots The minimum wind angle also applies when the autopilot is optimizing the VMG (available parameter in the Quick setup menu when ‘Wind setup’ is set to RACING). Range: 15 – 90° Default: 30° Tack angle (RACING) The autopilot can tack also in AUTO-mode. The set tack angle replaces a similar change of the set course using the course knob. Range: 50 – 150° Default: 100° Tack time (RACING) When performing a tack in WIND-mode, the rate of turn can be limited.
Configuration and Setup Wind shift alarm limit (RACING) The monitored wind shift in WIND mode is the wind shift angle measured from the last time the wind angle was set on the autopilot. If this wind shift exceeds the ‘Wind shift alarm limit’, a wind shift alarm will be activated. The wind shift monitoring can be turned off by setting the ‘Wind shift limit’ to ‘OFF’. Note ! A wind shift reading is also presented in the ‘Wind shift’-display.
Simrad AP26 and AP27 Autopilots Press and hold the NAV/WIND/SETUP button to enter the Installation setup menu. Select “Dockside” and turn the course knob clockwise to open the “Dockside” menu. This will automatically configure the autopilot for Virtual Feedback, and the alternating feedback alarm will disappear from the display. When the autopilot is configured for Virtual Feedback the Boat type is automatically set to Outboard.
Configuration and Setup The next step is to enter the correct direction of the rudder movement. Press and hold the TURN/DODGE/INFO button. Observe the rudder movement. Release the button after 3 seconds. If the rudder is not moving so as to give a starboard turn, press and hold the TURN/DODGE/INFO 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 AP26 and AP27 Autopilots The Rudder test is verified by the display showing ‘Motor OK’ or ‘Failed’. If ‘Failed’ is given, check for correct electrical connection. When test is finished the display will read: Drive Engage See page 108 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.
Configuration and Setup Use the STBD button to select an item and the course knob to select the unit. Available units are: Wind Speed: Knots (kt) or meter/second (m/s) Sea temperature: Fahrenheit (°F) or Celsius (°C) Depth: Meter (m) or feet (ft) Exit the Display units menu by pressing STBD button to proceed to the Sea trial menu, or press STBY to return to normal autopilot operation. 4.7 Caution ! Sea Trial The Sea Trial must always be performed in open waters at a safe distance from other traffic.
Simrad AP26 and AP27 Autopilots • Transition speed (the speed at which you want a power boat to change steering parameters) • Init NAV (to set the response you prefer when steering onto a track in NAV mode) • Set thrust direction (optional, only if interfaced to a thruster) • Drive output adjust (See Final sea trial page 134.) Select Seatrial by pressing the STBD button and confirm by rotating the course knob clock-wise.
Configuration and Setup Turn the minimum rudder on by turning the rotary course knob. Range: OFF-ON. Default: OFF Note ! During the sea trial, only set Minimum Rudder to ON if it proves to give a better course keeping performance in calm sea. It should be set after the autotune has been performed and a possible fine tune of the Rudder parameter (page 127).
Simrad AP26 and AP27 Autopilots Increase speed: >>>>>> Decrease speed: <<<<<< Appropriate speed: > < 1. Select the ‘Calibration’ item on the display 2. Begin turning the boat (port or starboard). 3. Confirm start of calibration by turning the course knob clockwise. The display will flash “Calibrating”. Establish your turning rate using the arrows in the display. 4.
Configuration and Setup Lubber line Lubber line Magnitude of local field in % of earth’s magnetic field. Direction of local field with respect to lubber line. It can also be on the reciprocal. Note ! In certain areas and at high latitudes the local magnetic interference becomes more significant and heading errors exceeding ±3° may have to be accepted. Compass Offset After calibration, also check the compass readout against a known reference, a compensated compass or a bearing.
Simrad AP26 and AP27 Autopilots Note ! If an OFFSET still exists after having compensated for it, one of the following problems may still exist: • The heading reference to which you are comparing the compass is not correct. • The automatic calibration is not correct. Refer to above “Compass deviation”. Proceed to the next menu item by pressing the STBD button, or return to Standby mode by pressing the STBY button.
Configuration and Setup The Offset value can be either positive or negative. Wind damping Damping of the apparent wind angle is made by the Advanced Wind Filter (AWF) in the Autopilot Computer. The inputs to the AWF are heading, boat speed, apparent wind angle and wind speed. Verify that these inputs are available in User Setup/Source Select. Heading sensors, speed sensors and wind sensors have variable performance. The measured wind angle can be very erratic when the boat is rolling heavily.
Simrad AP26 and AP27 Autopilots When the depth offset is set to zero, the indicated depth is from the transducer to the bottom. To read the depth from the water surface to the bottom you have to set the depth offset according to the vertical distance between the surface and the transducer, i.e. positive (+) value. If you want to indicate the depth from the keel to the bottom you have to set the depth offset according to the vertical distance between the transducer and the keel, i.e. negative (–) value.
Configuration and Setup in open waters at a safe distance from other traffic. The Automatic tuning function may take from 1 to 2 minutes to complete. To stop the Automatic tuning, press the STBY button. Activate the Automatic tuning, by rotating the course knob clockwise. The display will flash “Automatic tuning”. After an Automatic tuning, there should be no need for further adjustments. “Fine tuning” of these parameters are made by the response control (see page 59).
Simrad AP26 and AP27 Autopilots 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.
Configuration and Setup the steering algorithms and result in poorer steering instead of providing improvements. A play in the steering gear will always reduce the steering performance of the autopilot. The best result is obtained when sloppy linkages are repaired and this is the recommended course of action. Note ! With a rudder feedback unit installed the effect of the rudder play is significantly lessened.
Simrad AP26 and AP27 Autopilots 4.8 Parameters To access the Parameters, rotate the course knob clockwise. 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. The parameters are divided into two sets: • HI value parameters for automatic steering at low speed with a power boat and when running with a sailboat.
Configuration and Setup Manual parameter adjust Use course knob to adjust parameters Displayed parameter Boat type Displacem. & Sail Own boat Planing & Automatic Outboard tuning Manual LOw Rudder LO 0.35 0.20 Cont.Rudder LO 1.00 1.00 40 sec. 40 sec. 20° 20° 0.50 0.30 1.40 1.40 40 sec. 40 sec. 20° 20° Autotrim LO Rudder Lim LO HIgh Rudder HI Use PORT and Cont.
Simrad AP26 and AP27 Autopilots • 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. Note ! See also “Minimum Rudder” on page 116. Counter Rudder is the parameter that counteracts the effect of the boats turn rate and inertia. For a short time period it is superimposed on the proportional rudder response as provided by the heading error.
Configuration and Setup 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. Exit the Parameter menu by pressing STBD button to proceed to the Service menu, or press STBY to return to normal autopilot operation. 4.9 Service Menu Select STANDBY mode and then enter the Installation Menu by pressing and holding the NAV/WIND/SETUP button for 5 seconds.
Simrad AP26 and AP27 Autopilots Input voltage Mains voltage on input terminals. Drive out Power needed to drive the unit in percent of full (100%) to get satisfactory rudder speed. Clutch/bypass Verifies if a clutch or bypass valve has been activated when performing the rudder test. SimNet and NMEA Data Screen Select the screen by pressing the STBD button and confirm by rotating the course knob clockwise. Step through the menu by pressing the STBD button.
Configuration and Setup 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 confirm this by rotating the course knob clockwise. Verify that the hardware is OK. If not, replace the corresponding PCB(‘s). Proceed to the SimNet Setup menu by pressing the STBD button, or press STBY to return to normal autopilot operation. SimNet setup Under Service in the Installation Menu, select Simnet setup by pressing the STBD button and confirm this by rotating the course knob clockwise.
Configuration and Setup Instance number An item to identify units by a number when the autopilot is connected to a NMEA2000 Network. On SimNet units the Instance number is added to the product name e.g. AP26-1, AP262 for easy identification on various display screens. SimNet gateway Indicates which control unit that transmits and receives information on SimNet. The display verifies by reading ‘Yes’, all other units read ‘No’.
Simrad AP26 and AP27 Autopilots display will then read: “Master Reset confirmed”. Unless you have made a Master Reset, exit the Installation Menu by pressing STBY to return to normal autopilot operation. In the event a Master Reset has been made, refer to chapter 4.2. Final sea trial After having completed all settings in the Installation Menu, take the boat out and perform a final sea trial in open waters at a safe distance from other traffic. • Steer the boat on all cardinal headings in AUTO mode.
Configuration and Setup steps with respect to the reading set during the automatic rudder test (page 106). Always perform a new Autotune after the adjustment. • Provide the owner with user training. Providing user training The user should be instructed in the "basic" operational functions, such as: • Turning the system on and off • Changing modes. Explain briefly what takes place in the different modes. • Regaining manual control from any mode.
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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 (not applicable for Virtual feedback installations) Rudder response failure Rudder too slow 20221586F 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 144 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 22086995 22081442 22081178 RFC35 Fluxgate Compass Installation accessories consisting of: 20104972 Mounting plate (2) 44140762 Screw 3.
Spare parts list 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 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: ........................... RC36 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 Color: ......................................... 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 Color: ......................................... 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 20221586F 153
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 aluminum 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 +70 °C (–22 to + 158 °F) Cable length: ...............................
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 +70°C (–22 to +158°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 recognized 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 20221586F 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: AP25 AP26 Out Gateway C AP16 N N 127237 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 x* x* x* x * SimNet proprietary x x x x x x x x x x x x *Only transmitted if NMEA183/RC36/RFC35 is source Date of change: 20.12.
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 C-turn, 30, 58 A alarm external, 95 listing, 140 apparent wind, 46, 55, 166 arrival circle, 44 auto setup, 99 automatic tuning, 122 autopilot computer installation, 71 maintenance, 137 specifications, 152 D depth offset, 121, 122 depth source, 57 depth-turn, 35, 58 display units, 114 dockside settings, 104 Dodging, 37 drive engage, 108 Drive out, 107 drive unit hydraulic pumps, 74 installation, 74 linear drive, 74 maintenance, 137 reversible pump, 76 solenoid valve, 77 stern drive, 22 vol
Simrad AP26 and AP27 Autopilots view, 126 instrument select, 59 interface setting, 114 interfacing, 85 IP protection code, 161 parameters, 126 Pos source, 40, 56, 57 product ID, 132 L R language, 102 layline, 51, 55 lazy S-turn, 34, 58 linear feedback racing, 54, 109 radar connection, 93 radar output, 114 recall autotuned, 129 remote control installation, 95 lock function, 52 log source, 57 loopback, 132 installation, 84 specifications, 157 response, 59 rudder, 59, 122 M setting, 127 master res
Index source auto update, 56 source manually update, 57 source select, 56 specifications, 148 spiral-turn, 31, 58 square-turn, 33, 58 steering lever installation, 84 steering parameters selection automatic, 27 manual, 29 system basic, 12 components, 12 specifications, 148 system data, 129 T U user setup menu, 53 user training, 135 U-turn, 29, 58 V Virtual feedback, 21, 104, 111, 124, 125 VMG, 51, 55 W water speed source, 57 water temperature source, 57 wind offset, 120 tack angle, 110 tack time, 47, 11
Simrad AP26 and AP27 Autopilots 172 20221586F
