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Aetos Installation Manual

11.1

Parameters

Figure 53:

Various options for parameter settings.

parameter. See section 11.1.1 for details.

Send to others

is used to send parameter values from this Aetos to other

units/devices connected to the CAN bus. At the time of writing only
Nesis and Aetos devices benefit from this feature. This may eliminate
the need to tune the parameters on other devices.

Load predefined

loads engine parameters for the currently selected engine

model. Engine model shall be defined before this command is used.
Please, see section 13.1 for more details. Nevertheless, some minor
parameter editing may still be required (like number of cylinders, etc).

Load from layout

is a legacy option. Older layouts have layout and param-

eter information in the same file. A list of internal layout appears.
Select a layout and Aetos will erase/reset all existing parameters and
load parameters from the layout instead.

If selected layout does not have any parameters defined, the command
is ignored.

11.1.1

Parameter Editing

Selection of an item from the

Edit

section starts parameter editing. First a

group is selected and then a parameter from the group. Parameter editor
window is shown on Figure 54.

56

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Kanardia

2019–2020

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Summary of Contents for Aetos

Page 1: ...Aetos Installation Manual Kanardia d o o March 2020 Revision 1 1 ...

Page 2: ......

Page 3: ... 3 0 In short the license gives you right to copy reproduce and modify this document if you cite Kanardia d o o as the author of the original work you distribute the resulting work only under the same or similar license to this one Credits This document was written using TeX Live L A TEX based document creation system using Kile running on Linux operating system Most of the figures were drawn usin...

Page 4: ...tallation Manual Rev Date Description 1 0 Apr 2019 Complete manual rework 1 1 Mar 2020 Changes accumulated from SW versions 3 4 3 6 1 2 Oct 2020 Changes and clarifications for SW version 3 7 4 Kanardia 2019 2020 ...

Page 5: ...tion with Self Clinching Nut 15 2 4 3 Fixation with Threaded Rivet Nut Insert 16 2 4 4 Fixation with Spacer Stud and Epoxy 16 3 Power Installation 17 3 1 Circuit Breaker 18 3 2 Aircraft Master Relay 18 3 3 Backup Battery 19 4 GNSS Antenna Installation 20 4 1 GNSS Signal Check 21 5 Outside Air Temperature Sensor 23 5 1 Installation 23 5 2 Connection 25 6 Audio and Video 26 6 1 Audio Connection 26 6...

Page 6: ...cation 35 9 2 Port 1 Auxiliary RS 232 36 9 3 External Push Button 37 9 4 Alarm Switch 37 10 RS 232 Ports 39 10 1 Pinout 39 10 2 Configuration 40 10 3 Connection Details 42 10 3 1 TQ KRT2 Radio 42 10 3 2 Funke ATR 833 Radio 43 10 3 3 Trig TY91 TY92 Radio 43 10 3 4 Funke TRT800H Transponder 44 10 3 5 Trig TT21 TT22 Transponder 44 10 3 6 TQ KTX2 Transponder 45 10 3 7 Power Flarm 46 10 3 8 TRX 1500 48...

Page 7: ...61 11 9 Restore 61 12 AHRS Leveling 62 12 1 Yaw Misalignment 62 12 2 Roll and Pitch Adjustment 63 12 3 Initial Pitch 64 13 Engine Sensors 64 13 1 Engine Model 65 13 2 Switch Function 65 13 3 Channels 66 13 3 1 Channel Editing 67 13 3 2 Min Max 69 13 3 3 Offset 70 13 3 4 Tank 71 14 Tank 71 14 1 Fuel Level Sensors 71 14 1 1 Linear Shape 71 14 1 2 User Shape 72 14 1 3 Predefined Shapes 74 14 2 Simula...

Page 8: ...ENTS 16 Autopilot 78 17 Special 78 18 CAN Devices 78 18 1 Indu Digi Layout Change 78 18 2 Enable Disable Magnetic Heading 79 19 Joyu 79 19 1 Device Action Pairs 80 19 2 Configuration 81 20 Calibrated Airspeed 82 8 Kanardia 2019 2020 ...

Page 9: ...ons appear on the side of the manual which have special meanings This icon denotes information that needs to be taken with special attention An injury or even death is possible if instructions are not obeyed Failing to follow the instructions may lead to the equipment dam age This icon denotes background information about the subject This icon denotes a tip 1 2 Warnings The following warnings and ...

Page 10: ...n direct view field of the pilot without any ob structions The display supports landscape orientation only Portrait orientation is not possible The display has a modest power consumption It is cooled trough top and bottom openings in the housing Please make sure that cooling air will be able to circulate trough the housing openings Avoid to place the display next to the heater vents or into any ki...

Page 11: ...age the instrument bezel 2 2 Main Display Dimensions The display main dimensions are shown on Figures 1 3 and Figure 4 shows the cutout 22 17 30 38 Extra space for cables and tubing Figure 1 Aetos side view with dimensions The knob and part of the bezel protrude 23 mm in front of the instrument panel On the back side the housing requires 37 mm space This space already includes thickness of the ins...

Page 12: ...s The bezel width is 192 mm and the height is 127 mm Back side housing width is 176 mm height 122 mm Figure 3 shows Aetos top view Cooling openings are clearly visible Same cooling openings are also on the bottom side It is very importnat that bottom and top cooling openings are not obstructed cooling air must freely circulate Figure 3 Aetos top view 12 Kanardia 2019 2020 ...

Page 13: ...out dxf Please note that the cutout tol erance was already added to the green cutout line Figure 4 illustrates the cutout dimension Figure 4 Aetos cutout dimensions The figure is not actual size Some mounting notes The display is mounted from front The display is shipped with a set of mounting hardware four screws and nuts You can replace screws and nuts with more appropriate ones Do not use screw...

Page 14: ...ust the opening if necessary There are several ways to fix the Aetos into the panel using supplied M3 nut and lock washer using self clinching nut insert using threaded rivet nut insert using spacer stud and epoxy Details are shown in next subsection 2 4 1 Fixation with Supplied M3 nut and Lock Washer This is the most straightforward method of fixation Figure 5 shows an ex ample 1 O Aetos aluminiu...

Page 15: ...pecial tools like arbor press may be required For instrument panels made of aluminum a nut like shown on Figure 6 can be used The nut must be pressed into the panel before installing the instrument Once pressed the nut shall not turn when Aetos is removed and this makes servicing easier The hole size needs to be as accurate as possible It is recommended to do a few tests on a scrap part first 2 3 ...

Page 16: ...a small disadvantage using rivnuts As the rivnut head has some minimal thickness the Aetos bezel will probably not mount flush with the panel there will be a small gap 1 2 Figure 7 Example of rivnuts inserts Left a rivnut before compressing Right a compressed rivnut 1 O instrument panel 2 O rivnut 2 4 4 Fixation with Spacer Stud and Epoxy As another alternative a M3 nut can be epoxied to the back ...

Page 17: ...oat removed 4 O spacer stud fixed with epoxy mixed with cotton flox This fixation principle is a bit messy but works very well in practice 3 Power Installation Aetos power input requirements are compatible with 12 and 24 V aircraft power systems Aetos accepts 10 30 V range The supplied power cable have two unterminated wires The red wire must be connected to the power 12V or 24V terminal The blue ...

Page 18: ...evices Daqu Magu Indu etc are powered via Aetos and they add to total consumption A rough estimate is 250 mA per device So a circuit breaker rated at 1 5 to 2 5 A is needed for the systems with one Aetos In the case of two Aetos connected to the same circuit breaker use 2 5 to 3 5 A rated circuit breaker instead It is recommended that each Aetos gets its own circuit breaker 3 2 Aircraft Master Rel...

Page 19: ...to UPSU and the second one brings backup battery power into UPSU When there is enough voltage present on the system bus system power is used and if there is no voltage on the system bus backup power is used UPSU will switch between both sources automatically UPSU also charges the backup battery when system voltage is high enough 13V or more Figure 10 Schematics of the UPSU backup system Blue leads...

Page 20: ...ments running at 100 brightness Reducing the LCD brightness level significantly increases backup times 4 GNSS Antenna Installation The GNSS system in Aetos consists of two parts the GNSS module and GNSS antenna The module is an integral part of the AD AHRS GNSS device which is built in the Aetos and the antenna cable connects to the back side of the Aetos Standard SMA male connector is used on the...

Page 21: ...h the general rule is that the antenna shall be unobstructed good results were also obtained for antennas placed under the instrument panel covers made of thin fiberglass This does not work with metal of carbon fiber covers Aetos comes equipped with one of the two possible antennas as shown on Figure 13 The GNSS receiver is capable of SBAS enhancement from EGNOS WASS etc system When SBAS signal is...

Page 22: ...ons are shown Satellites used in the position calculation are colored green Grey color means that a satellite is being tracked but it is not being used in the solution Under unobstructed sky satellites should be evenly distributed HDOP VDOP and PDOP3 values indicate quality of the solution The mean ing of the DOP values is given in Table 2 In general HDOP shall be always be less than 5 Vertical ba...

Page 23: ...ly 2D fix is obtained The position measurements are poor 3D fix 4 or more satellites are used in the solution The position quality should be good See also DOP table 3D SBAS 3D position is further enhanced with the SBAS system 5 Outside Air Temperature Sensor 5 1 Installation Outside air temperature OAT probe is shipped with the Aetos primary dis play This is a digital temperature sensor inserted i...

Page 24: ... sunlight heated air exited from cabin It is not recommend installing the probe in the heated cabin area since the elevated temperature in the cabin may influence the back side of the probe aluminium housing conduction Please follow these steps to install the OAT probe 1 Locate a spot in the aircraft taking into account the considerations from above and drill a φ 8 mm hole 2 Remove the external nu...

Page 25: ...rting the OAT probe left cap is in place tighten the internal nut slide the insulation shrink sleeve right 5 2 Connection The digital thermometer in the tip of the probe is type DS18B20 OAT connector is standard RJ12 type as shown on Figure 16 Description of individual pins is given in Table 3 1 4 4 1 Figure 16 Designation of the pins Pin Description 1 3 3V 2 Data 3 GND 4 Not connected Table 3 Des...

Page 26: ...audio jack which fits into Aetos master unit The other end is open ended and it should be connected to audio panel or external input of a radio station Audio output from the Aetos is 1 5 V 600 Ω peak to peak Output is isolated with an audio transformer so both signal and ground must be connected Use of a shielded cable is preferred We provide short manual and schematic for most widely used radio s...

Page 27: ...uxiliary audio input will be muted when the radio station is receiving or transmitting 6 1 2 Funke ATR833 Audio output of the Aetos must be connected to the external audio input on Funke ATR833 radio station Please connect Aetos audio output as on Figure 18 The Funke ATR833 radio station must be configured to accept audio from Aetos Please follow next steps to configure external audio input on Fun...

Page 28: ...ges are cut you should select the no RXTX mode However this makes audio input permanently active which may lead to some small noise always present in a headset 6 1 3 Dittel KRT2 Audio output of the Aetos must be connected to the External NF input on KRT2 radio station Please connect Aetos audio output as on Figure 19 8 15 9 GND KRT2 15 pin D SUB 5 1 Mono 3 5mm Jack GND SIGNAL Figure 19 Schematic f...

Page 29: ...tos comes equipped with a BNC video connector In general any video camera with analog composite video signal in PAL or NTSC format can be connected The SECAM format is not supported The input on Aetos has impedance 75 Ω and is expecting video signal with amplitude 1 5 V peak to peak The video signal source must be connected to Aetos with 75 Ω coaxial cable Aetos does not recognize video format aut...

Page 30: ... the memory stick must meet the following requirements Max supported capacity is 32 GB The stick must be formatted as FAT32 Windows One memory stick is supplied in the kit In some occasions Aetos does not detect the USB memory stick properly Removing the stick and inserting it back again usually solves the problem If the problem persist try with a memory stick made by a different producer or try t...

Page 31: ...etected networks appear An example is shown on Figure 22b You will see a different list 4 Select a network where you want to connect to In the example SkyEcho B7D1 will be selected This is an ADS B receiver transeiver4 produced by uAvionics 5 Enter the network password Keep it empty when password is not re quired by the network 6 After a few seconds Nesis will connect to the network See figure 22c...

Page 32: ... mode Usually the procedure is as follows 1 Connect Aetos and smart phone with a USB cable 2 On the smart phone select the settings icon 3 Then select the connections item 4 Search for the mobile hotspot and tethering option 5 Enable the USB tethering option No actions are required on the Aetos side 8 The CAN Bus Aetos has two CAN bus ports The CAN bus is the main communication bus between Kanardi...

Page 33: ... 1 8 1 8 8 1 Figure 23 Designation of the CAN bus pins Pin Description 1 2 3 12V 4 CAN low 5 CAN high 6 7 8 GND Ground Table 4 Description of the CAN bus pins Our CAN bus system is running at 500 kBit s 8 2 The CAN Topology CAN system can be used in different topologies We are using line bus type topology Figure 24 shows schematic of this topology It consists of one main CAN bus line and several d...

Page 34: ...ports Daqu and Magu devices are a bit special They usually appear on each end of the main bus They have a built in 120 Ω resistor which is used as a CAN bus terminator This means no extra terminator is required In most cases the main CAN bus is pretty short It is typically less than 4 m long For such short lengths one terminator suffices there is no signal deterioration Figure 26 illustrates the A...

Page 35: ...rminator is nothing but a simple 120 Ω resistor between CAN high and CAN low leads pins 4 and 5 on Figure 23 and Table 4 A standard 1 4 Watt resistor will do 9 Service Port The service port consists of a D SUB 9 pin connector and it is a multipurpose port The port supports several roles terminal communication with the built in computer auxiliary RS 232 port for general use external push button com...

Page 36: ...rvice port pins parity bit one stop bit Figure 29 illustrates the connection A communication with a terminal shall be used only during production and factory maintenance or repair 1 5 6 9 GND Ter TX Ter RX Terminal device TX Terminal device RX Terminal device GND Figure 29 Connection schematics for service terminal 9 2 Port 1 Auxiliary RS 232 Aetos has three RS 232 communication ports used to conn...

Page 37: ...section in the Aetos User Manual for more details In most cases an external button is used together with the autopilot system and events are associated with one of the AP commands Figure 31 shows the connection schematic 1 5 6 9 GND External Button Signal Figure 31 External push button schematics In normal operation the circuit is open When the button is pressed it closes the circuit and connects ...

Page 38: ...gh the load The load must be externally powered with the system bus voltage 1 5 6 9 8 Alarm 12 V Max load 50 mA Optocoupler inside Figure 32 Alarm switch schematics with the load on the line Figure 33 illustract solution for a larger load This load must be connected via relay and the circuit must be protected with a flyback diode Some relays have this diode already built in When alarm is on the ci...

Page 39: ...ort number are merely suggestions 1 RS 232 PORT 2 RS 232 PORT 3 RS 232 PORT 4 RS 232 PORT 1 Figure 34 RS 232 ports at the back side of the Aetos 10 1 Pinout This section describes ports 2 3 and 4 only See section 9 2 on page 36 for the port 1 description A standard RJ12 6P6C plug is needed to connect to the port The table 6 defines the pinout and figure 28 illustrates pin ordering on connector and...

Page 40: ...xternal device is connected port must be also properly configured 1 Select Options on the main menu 2 Select the Service icon and enter product specific password to access the service options 3 Select the Settings icon from service page 4 Select the Serial ports item Figure 35 illustrates the window 5 Select the port where device was connected and choose one of the options described next 6 Close a...

Page 41: ... compatible device the port is connected with a Power Flarm TRX 1500 or some other Flarm compatible device Automatic baud rate detection is used for Flarm devices Aetos expects one of the following baud rates 4800 9600 19200 28800 38400 57600 We recommend using higher boud rates like 38400 or 57600 when possible NMEA GPS out 4800 the port will send out GPS data in NMEA format at 4800 baud N 8 15 R...

Page 42: ...ion to a KRT2 radio is made using a trick Aetos pretends to be a KRT2RC remote control unit This means that connection is only possible when the remote unit is not connected to KRT2 KRT2 utilizes 15 pin D SUB connector where the housing is used as 16 th pin for GND Figure 36 illustrates the connection of KRT2 and Aetos Illustration shows only leads required by Aetos Much more leads are connected t...

Page 43: ...TR 833 and Aetos Illustration shows only leads required by Aetos Much more leads are connected to the 25 D SUB connector Use an adapter board if possible Please refer to the ATR 833 documentation for more details on connections If ATR 833 and Aetos are both connected to the same airplane ground then GND line may be omitted dashed line 1 9 13 14 22 25 DATA RX DATA TX GND 1 2 3 4 RX 5 TX 6 GND Not u...

Page 44: ...l Funke transponder TRT800H may optionally connect to some GPS data source which then enables ADS B out function This connection is made to the open cable ends which are part of the external memory address adapter TRT800EMxx Do not attempt to open the connector adapter Configure the transponder RS 232 part to NMEA and set data rate to 4800 Also set Aetos port to NMEA GPS out 4800 see Figure 35 Con...

Page 45: ...urpose connector Only connection related to the Aetos are shown The communication is unidirectional only Aetos transmits GPS data on TX and transponder receives the data on RX 10 3 6 TQ KTX2 Transponder Please read the KRT2 Manual before any connection is made to Aetos The manual can be obtained from https www tq general aviation com Please note that KTX2 requires software version 101 or higher fo...

Page 46: ...KTX2 transponder 10 3 7 Power Flarm Please read the PowerFLARM Core Installation Manual before any connec tion is made to Aetos The manual can be obtained from the Flarm Tech nology Ltd web site Aetos User Manual has one complete section devoted to Flarm based products Please read this section as well Aetos allows you to do almost complete configuration of Flarm Flarm SW Update When you purchace y...

Page 47: ...nector 57600 or at least 38400 Connection PowerFLARM core has two communication ports at the back side Port 1 has RJ45 connector and port 2 has D SUB 9 pin connector This section describes connection to port 1 The port 1 on Flarm has 8 pin RJ45 connector while Aetos is using 6 pin RJ12 connector The schematics on Figue 42 shows meaning of individual pins and proper connection 6 or 8 pin flat cable...

Page 48: ...in connector The bottom one connects to Aetos serial port while to top cable is optional and can be connected to one of optional Flarm displays 1 6 11 12 V out GND GND RX TX 12 V in for LX Nav displays only 12 V in GND GND RX TX 3 3 V in Nesis 6 pin RJ look from back side Display 6 pin RJ look from back side TRX 1500 look from back side 1 3 3 V out 2 GND 3 N C 4 Port 3 RX Nesis TX 5 Port 2 RX Disp...

Page 49: ...r aircraft enter the transponder ICAO address into the ICAO Mode S address hex field Figure 44 TRX 1500 general settings page Enter correct transponder ICAO address here Figure 45 shows typical settings for Port 2 where optional LCD display may be connected Figure 46 shows settings used to connect Aetos on the port 3 Different settings may suit your needs better Feel free to experiment If somethin...

Page 50: ...ttings page Port is connected to Aetos com web site Open the Support menu and search for the manual Connection AT1 has a D SUB26 HD connector on its back side This is a multi purpose connector and several devices may use it Schematics shown on Figure 47 shows only connections required to connect data port 3 on AT1 with Aetos 50 Kanardia 2019 2020 ...

Page 51: ...for AIR Traffic AT1 device Configuration The AT1 devices can t be configured with Aetos and one of the procedures from device s manual shall be used The WiFi solution is shown next Turn the AT1 on AT1 will act as an WiFi access point Connect a computer a telephone or a tablet to the AIR Traffic SSID and establish connection per device s manual Once connection is established open the browser with c...

Page 52: ...the changes Aetos requires a few seconds to detect new data rate and detect the format This procedure is automatic Unfortunately AT1 does not fully implement the Flarm protocol So Ae tos can t obtain device information An attempt to access any of the ADS B Flarm options on Aetos will result in Flarm info is not available message This does not mean that AT1 device is not working properly 10 3 10 Fl...

Page 53: ...n and it is not provided by default Connection Flarm Eagle has typical Flarm RJ12 six pin connector on front Pins num bering is the same as on the Aetos so connection can be made with a flat cable The same cable can also provide power for the Flarm Eagle Configuration Flarm Eagle fully supports the Flarm protocol and it can be configured with Aetos Alternatively it can be configured via USB port o...

Page 54: ...nection details When both devices are connected to the same power source which is usually the case then there is no need to connect GND dotted line RJ12 6 pin echoUAT 1 12 V 2 3 4 RX 5 TX 6 GND connector Molex 0436050600 F r o m G P S 6 RX2 5 TX2 4 RX1 3 TX1 2 12V in 1 GND Figure 51 Schematic connection for echoUAT device Configuration echoUAT supports GDL90 protocol Please configure the device to...

Page 55: ...that engine sensors and corresponding Daqu channels are set before parameter specific values are defiend See also section 13 and Daqu or miniDaqu manual The Parameters window is used to set and tune name range and color limits for different parameters used by Aetos Figure 53 shows the options These options have the following meanings Edit Engine Electric Other opens a selection list where one para...

Page 56: ... this command is used Please see section 13 1 for more details Nevertheless some minor parameter editing may still be required like number of cylinders etc Load from layout is a legacy option Older layouts have layout and param eter information in the same file A list of internal layout appears Select a layout and Aetos will erase reset all existing parameters and load parameters from the layout i...

Page 57: ... time needed for filter to reach about 63 of the input change For example assume the filter is set to τ seconds an the parameter signal goes from 0 to 100 in one step The parameter response will reach 63 after τ seconds Short defines a short name for parameter Change it as needed but keep it short Tiny defines a tiny version of the parameter name It must remain tiny one or two letter max It is use...

Page 58: ...s plaese make sure that flap sensor was correctly connected to Daqu see Daqu manual Daqu channel was correctly configured see section 13 3 and Min Max position was determined see section 13 3 2 Flaps may have several fixed positions between fully retracted and fully ex tended This window is used to define visual flap stops markings which are relative to the full flap travel Typically flap stop 0 c...

Page 59: ...ll information received from some GDL90 defice to a USB memory stick Such records come handy for development and debuging TIS B and FIS B services of ADS B systems CanData records complete internal CAN bus traffic to USB memory stick Kalman records sensors information from AD AHRS GPS module It is used for post processing debugging and simulating AHRS behaviour Normally recordings are not necessar...

Page 60: ... Input Certain Aetos models have a composite video input connection Aetos must know the format of this analogue video input It can be either PAL or NTSC Only these two formats are supported Please check which format is used in your camera and set it accordingly 11 6 Serial Ports Aetos has several serial RS 232 multi purpose ports at the back Please refer to the section 10 starting on page 39 for d...

Page 61: ...lots bak stores pilots and instructors UserWpts bak stores user defined waypoints Routes bak stores routes Parameters bak stores all parameter settings Daqu bak stores a copy of Daqu settings when Daqu is connected to the CAN bus Ini bak stores a copy of some initialization parameters airplane folder stores all layout conf files found on Aetos 11 9 Restore This command restores backup files from a...

Page 62: ...s running Please make sure that aircraft is level for both roll and pitch Make also sure that Aetos is turned on for at least ten minutes this warms up the internal electronics and stabilizes numerical filters Before the automatic alignment is made the yaw misalignment shall be de termined Follow next steps to open the AHRS Level window 1 Select Options on the main menu 2 Select the Service icon a...

Page 63: ... x axis x axis x axis Ψ Ψ Figure 58 Top down view illustration of possible yaw misalignment perfect position left positive yaw misalignment angle middle negative yaw misalignment angle right Yaw correction affects the roll and pitch correction as well Hence it is im portant to set yaw before roll and pitch adjustments are made 12 2 Roll and Pitch Adjustment Once yaw correction is known in most cas...

Page 64: ...ost any change described in this section will directly affect the Daqu device Any change will be transmitted to Daqu which needs some time to respond Therefore we recommend not to work too quickly give the system some time to adjust to changes In order to show a sensor parameter on screen three different activities must be completed 1 Sensor transducer probe must be connected either to Daqu or to ...

Page 65: ...me kind of ECU Rotax iS UL Power D Motor Aetos uses this info to load default parameter settings for the engine section 11 1 For some engines it also tells which software fuel flow calculation models shall be used It is used only when fuel flow sensor is not present The Generic engine option can be used for any engine any is normally used with Lycomming Continental Some ECU base engines provide fu...

Page 66: ...used the switch is not in use ECU start can be used in conjunction with Rotax iS engine only It is used to automatically engage disengage the start button switch This can be useful in engine start sequence Alarm light turns on the switch alarm line when an alarm condition is met Note SW 3 4 does not support this yet When the ECU start is active an additional option appears It is labeled as iS star...

Page 67: ...e the sensor limits required for some functions like trim and flap Offset is used to slightly adjust the sensor s zero settings This option is not available for some sensors Tank is used to give additional details for the fuel level sensor In order to access the last three options channel must be first properly set with the Edit command 13 3 1 Channel Editing The channel editor window depends on t...

Page 68: ...The optimal value depends on the sensor and function type Pulses value is specific for digital channels Z Y It defines how many digital pulses are required for one event For example some rotor sensor may issue 12 pulses per one rotor revolution Prop reduction is specific to Engine RPM function Some engines have reduction gear boxes Rotax for example If the reduction ratio is entered then the prope...

Page 69: ... sensor is connected to the channel Note The functions can t repeat themselves When one specific function was assigned to one channel and then the same function is assigned to the other channel the first assigned function will be reset and the last assigned function will be kept 13 3 2 Min Max Functions like trim position flap position and throttle positions require two additional parameters After...

Page 70: ...ance is shown Selecting the sensor item allows copying current sensor value either into Nose or Tail fields In typical scenario aircraft is trimmed full forward and once sensor value is stable sensor value is copied to Nose Then it is trimmed fully backward and once sensor value is stable it is copied to Tail 13 3 3 Offset For certain sensors offset can be adjusted This is used in cases when the c...

Page 71: ...x value are needed 2 User up to 20 tank points can be given to define the shape 3 Predefined shapes nominal curves are predefined and the selected curve will be scaled between min and max value 14 1 1 Linear Shape This is the simplest tank calibration solution It only requires three additional values Figure 66 illustrates the main tank window and figure 67 illustrates situation with the empty and ...

Page 72: ...much points in calibration is not beneficial In order to define a user shape for tank set the Shape parameter to User The window will change slightly Then select the Edit item This opens a window where tank measurements are manipulated A typical procedure is described next Taking notes on paper about every measurement point is highly recommended 1 Make sure that aircraft is in level position for a...

Page 73: ...epeat the previous step until the sensor value stops changing When this happens the upper sensor limit point has been reached Putting more fuel into tank will have no effect on the sensor Sensors in many aircraft reach this point way before true fuel tank capacity is reached 6 Close the editing window The fuel tank has been calibrated and the tank specific shape will be shown on the window 6 Here ...

Page 74: ...and 42 Figure 69b shows the final situation The dark blue color line on the chart shows tank non linearity a Final list of points b User defined tank shape Figure 69 An example of tank measurement points 14 1 3 Predefined Shapes Solution with predefined shapes is suitable for the cases where the shape of tank is known in advance In this case correct shape is slected and only Empty Full procedure i...

Page 75: ... The tank shape has now been defined and scaled to empty and full sensor position Predefined shapes also support the Edit option where individual points can be adjusted Since this alters the shape the shape name will change to User automatically 14 2 Simulated Fuel Tank Software fuel tank simulation is used when no fuel level sensors were config ured Selection of the Tank icon opens a simple windo...

Page 76: ...stments are made This is not necessary for counter adjustments Static altitude allows for static pressure offset A precise reference static pressure must be known Adjust the correction so that indicated static pressure will shown the same value as reference static pressure The pressure is adjusted in 0 1 hPa steps One steps corresponds to about 0 83 m 2 7 feet at sea level Alternatively if when re...

Page 77: ...ng logs It will only affect new ones It takes about 10 seconds for the change to become permanent Do not close reboot Nesis for 10 seconds after the change Fuel flow factor affects software based fuel factor only It does not affect sensor fuel flow factor It is used to correct fuel flow indication for the cases where fuel flow is computed from engine RPM and manifold pressure for a known engine In...

Page 78: ...te command is executed Figure 72 Each special command is protected by password The special commands are not listed They are given only on request directly to the OEM or to the user 18 CAN Devices Selection of the CAN Devices icon opens a list of devices connected to the CAN bus The list is mostly informative However some configuration actions are also possible for certain device types 18 1 Indu Di...

Page 79: ...n the magnetic heading will be bad off for many degrees Bad magnetic heading will affect AHRS stabilization and AHRS may start causing problems undefined behaviour Selecting Magu from the list of CAN devices will show two options Enable magnetic heading turns magnetic heading on default Disable magnetic heading turns magnetic heading off Use this if Magu calibration was not successful or if Magu d...

Page 80: ...ing the Cancel Back button User same as pushing the User button Pager same as pushing the page switching button AP Menu opens the autopilot main menu AP Level issues a autopilot Level command Boxi PTT radio transmition command connects the PTT pin to GND AUX AUX command connects the AUX pin to GND Motor 1 moves the motor 1 in the positive direction Motor 1 moves the motor 1 in the reverse directio...

Page 81: ...tions as a button Figure 73 Initial empty Joyu configuration window 1 Press a button or turn the wheel on Joyu A window appears and asks which device action pair shall be assigned to this button 2 Assign a device from the list and its action to the button pressed in the previous step Figure 74 shows an example for button 1 Figure 74 Joyu button 1 was assigned to Nesis with serial number 100 with t...

Page 82: ...iples apply when two Joyus are connected to the CAN bus Joyu is a very powerful command device It efficently combines different devices and their actions The same principles as with all powerful tools apply here as well It is very easy to create a complete mess especially when two Joyus are in use Please make a paper plan first and then start assigning device action pairs to the individual buttons...

Page 83: ...he window At that moment the calibration table was sent to Airu AD AHRS GPS and from this point on CAS TAS and wind calculations will take this correction into account Figure 77 An example of the CAS correction table Please note that the first item is always set to 0 This can t be changed Corrections are interpolated where smaller and larger correction exists When IAS value exceedes the last value...

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