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Kanardia miniDaqu Manual

Engine management system
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miniDaqu
Engine Management System
Manual
©
Kanardia d.o.o.
June 2022
Revision 1.4

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Summary of Contents for Kanardia miniDaqu

  • Page 1 Engine Management System Manual © Kanardia d.o.o. June 2022 Revision 1.4...
  • Page 3 In short, the license gives you right to copy, reproduce and modify this document if: ˆ you cite Kanardia d.o.o. as the author of the original work, ˆ you distribute the resulting work only under the same or similar license to this one.
  • Page 4 — Manual WEEE Statement Disposal of Waste Electrical and Electronic Equipment. This electrical item cannot be disposed of in normal waste. Check with your local authority for kerbside collection, or recycle them at a recycling centre. © Kanardia 2019-2022...
  • Page 5 — Manual Revision History The following table shows the revision history of this document. Rev. Date Description January 2019 Initial release. March 2019 Unified DB9 markings. July 2020 Digital PNP sensor schema fix. June 2021 Clarify description of output pins.
  • Page 6 — Manual © Kanardia 2019-2022...

  • Page 7: Table Of Contents

    2.2 Connectors and Cables ..... . . 13 2.2.1 Kanardia CAN Bus Connector ....13 2.2.2 ECU Connector .
  • Page 8 CONTENTS miniDaqu — Manual 4 Alarm Signal 4.1 Direct Connection ......22 4.2 Indirect Connection ......22 4.3 Configuration .
  • Page 9 — Manual CONTENTS 9 Additional Sensors 9.1 Fuel Pressure ......34 9.1.1 Sensor Type Selection .

  • Page 10: Introduction

    CAN network, where other units can make use of these readings. In addtition, mini Daqu connects to engine ECU and reads data from it. The data is then transmitted on the Kanardia CAN network. We strongly recommend you to carefully read this manual, before you start connecting mini Daqu unit with your engine sensors.

  • Page 11: Technical Specifications

    — Manual 1.2 Technical Specifications uses information available from ECU and only minimal amount of additional sensors (if any) is required. Daqu electronics is enclosed in thin anodized aluminum case. Electronics is designed to sustain elevated ambient temperatures and with some care it can also be mounted in an engine compartment.

  • Page 12: Power Supply

    1.3 Power Supply miniDaqu — Manual Clearance for two CAN connectors and sensor wires Figure 1: Dimensions and connection clearence of mini Daqu – Top View. Figure 2: Dimensions and connection clearence of mini Daqu – Front View. Power Supply Daqu gets its power supply via CAN bus cable, which is typicall connected to some display like Nesis, Aetos, Emsis, Digi, .

  • Page 13: Output Power Pins

    — Manual 1.4 Output Power Pins Output Power Pins Daqu has several OUTPUT power pins labeled as +5V, +12V and GND. These pins are OUTPUT pins only. They shall be only used to supply power from Daqu to sensors connected to them. For example, active pressure sensors require power to operate and these pins shall be used to provide power for them.

  • Page 14: Digital Channels

    1.6 Output Pins miniDaqu — Manual 1.5.2 Digital Channels The digital channels are used to measure time between pulses. Typical sensors connected to digital channels are rotor RPM and fuel flow. Mini Daqu uses only one digital channel. Y – Used for signals with nice shape and voltage level, like rotor RPM sensors, fuel flow sensors, etc.

  • Page 15: General Rules

    The 12 pin connector on top is used to connect additional sensors and probes. 2.2.1 Kanardia CAN Bus Connector This connector is used to connect Daqu to Kanardia CAN bus system. It also brings power for Daqu at the same time. On the Daqu cable side, a male ©...
  • Page 16 View from soldering side Figure 3: Details of the mini Daqu connectors. The left is used for Kanardia CAN bus and the right connects to an engine ECU. D-SUB 9 connector is needed. The pinout of the connector is given in table 2.

  • Page 17: Ecu Connector

    There are also other sensors that Daqu can make use of and are not described here. When you encounter a problem, contact Kanardia and we will try to provide you with a solution.

  • Page 18: Connection Wires

    3.1 Connection Wires miniDaqu — Manual Table 3: Daqu ECU connector pinout. Description GND - ground RS232 RX RS232 TX CAN B high Relay out - (or Alarm -) CAN A low CAN A high CAN B low Relay out + (or Alarm +) Connection Wires Tefzel (or similar grade insulation) is recommended for all wires.

  • Page 19: Thermocouples

    — Manual 3.4 Thermocouples resistance. The current and voltage are still low enough to be safe to be used for fuel level sensors submerged in fuel. Figure 5 illustrates connection. +5 V FUEL ROTOR +12 V Figure 5: Resistive sensor connection on E channel.

  • Page 20: Current Output

    3.5 Analog Active Sensors miniDaqu — Manual An active sensor with voltage output usually has three wires. +5/+12 V sensor input wire is connected to appropriate +5/+12 V pin on Daqu, ground wire to GND on Daqu and the sensor signal output wire to one of B, D, E or F channels.

  • Page 21: Potentiometers

    — Manual 3.6 Potentiometers Sensors may have two or three wires. +5/+12 V input is connected to ap- propriate +5/+12 V pin. Signal is connected to one of the F channels, see Figure 7. The third wire is connected to the GND. Some sensors do not require GND connection as they are grounded via engine block.

  • Page 22: Digital Active Sensors

    3.7 Digital Active Sensors miniDaqu — Manual +5 V FUEL Not used ROTOR +12 V Figure 8: An example of potentiometer, connected as variable resistor to a F channel. +5 V FUEL ROTOR +12 V Figure 9: An example of potentiometer, connected as variable voltage divider.

  • Page 23: Npn - Open Collector Output

    12 V, but some sensor may require 5 V. 3.7.1 NPN – Open Collector Output Figure 10 illustrates a typical connection for the NPN case. Here all wires are connected directly. Internaly the miniDaqu provides week pull up resistor connected to internal 5V. +5 V FUEL...

  • Page 24: Direct Connection

    4.1 Direct Connection miniDaqu — Manual +5 V FUEL ROTOR +12 V Figure 11: An example of PNP digital sensor connection. The alarm signal uses two pins. When active, the positive alarm pin provides system voltage (usually 12 V) and the negative pin connects to ground. These pins can be used directly or indirectly.
  • Page 25 — Manual 4.3 Configuration Wire Colour Function Black CAN A LOW CAN A HIGH Engine ECU DB9-ECU Blue CAN B LOW Open wires Load Green CAN B HIGH System voltage Yellow Alarm out + Brown Alarm out - +5 V...

  • Page 26: Rpm Signal

    Daqu reads the engine RPM value from ECU and creates digital pulses on the pins 5 and 9 of the Kanardia CAN bus connector. See Figure 3 and Table 2 . It creates one digital pulse per RPM. Third party instrument can connect to these pins and detect pulses in order to obtain RPMs.

  • Page 27: Rotax Is

    — Manual 6. Rotax iS Daqu RPM + pin 9 pin 5 RPM - Figure 15: An example of RPM output connection. Rotax iS This section gives some specific installation tips for the Rotax iS engines. Rotax has two iS models, 912 iS and 915 iS. Although the engines are different, the ECU and connection principles are the same for both engine types.

  • Page 28: Installation

    6.3 Automatic Start Power Switch miniDaqu — Manual Rotax iS HIC A Function CAN_GND_1_A CAN_LOW_1_A CAN_HIGH_1_A Wire Colour Function Black CAN A LOW CAN A HIGH Engine ECU DB9-ECU Blue CAN B LOW Rotax iS HIC B Open wires Green...

  • Page 29: Configuration

    — Manual 6.3 Automatic Start Power Switch Backup Battery Rotax 912iS FuseBox Switch (S3) Start Power Start Power Relay Switch iS EMS GND iS EMS GND Airframe GND Airframe GND Relay Out - Relay Out + (Daqu) (Daqu) Figure 17: Automatic start power switch with a relay and connection from Daqu.

  • Page 30: Operation

    7. ULPower Engines miniDaqu — Manual Figure 18: An example of automatic start power switch configuration for Ro- tax iS engine. 6.3.3 Operation Check that parallel Start Power Switch is turned off. This switch shall be always off, when Automatic Start Power Swtich option is used.

  • Page 31: Ecu And Aux Parameters

    — Manual 7.1 ECU and AUX Parameters both ECUs (when two ECUs are used). The ECU combines data from AUX box with its own data and outputs the combined data over CAN or RS-232. Figure 19 illustrates an example with one ECU connected to Daqu using RS- 232 serial communication.

  • Page 32: Ecu Can Bus Connection

    7.2 ECU CAN Bus Connection miniDaqu — Manual TPS, MAT, OilP, OilT, FuelP Baro pressure ECU A miniDaqu AUXBOX Baro pressure ECU B TPS, MAT, OilP, OilT, FuelP Figure 21: Block view of dual ECU connection CAN bus. temperature, oil pressure, oil temperature, fuel pressure, fuel flow, ECU tem- perature, ECU supply voltage, engine hours, ignition status and sensor status.

  • Page 33: Two Ecus

    ECU RS-232 Connection The serial port interface can be connected to only one ECU. Daqu receives data stream from ECU, decodes data and send it over Kanardia CAN bus protocol. Please refer to Table 6 for connecting ULPower ECU to Daqu via serial protocol.

  • Page 34: Configuration

    7.4 Configuration miniDaqu — Manual Table 6: Connection table for serial RS-232 bus. DB9-ECU Daqu Function Pin 2 RS232 RX RS232 TX Pin 3 RS232 TX RS232 RX (connection not required) Pin 1 Configuration When configuring Daqu, correct Engine model must be selected. An example of configuration dialog is illustrated on Figure 22.

  • Page 35: Cc-M Module

    — Manual 8.1 CC-m Module This section gives some specific installation tips for the MWfly engines. MWfly engines are equipped with ECU that has a CAN output. However, Daqu can not be directly connected to this ECU and an interface is needed. This inter- face is called CC-m CAN to CAN module and it is provided by MWfly.

  • Page 36: Fuel Pressure

    9.1 Fuel Pressure miniDaqu — Manual Fuel Pressure In most cases, ECUs do not have fuel pressure information. In order to get it, a fuel pressure sensors must be connected to Daqu. Rotax iS is a bit special here and it is explained in a separate section 9.2.

  • Page 37: Configuration

    — Manual 9.1 Fuel Pressure 9.1.3 Configuration Various sensor configurations are given in tables listed next. The Max value or sometimes Ref val. must be always set in bar unit. If the sensor limit is specified in PSI, convert this to bar and set this the value in bars into channel configuration.

  • Page 38: Variable Current

    9.2 Fuel Pressure - Rotax iS miniDaqu — Manual 9.1.5 Variable Current A connection example for current varying sensor is given. The sensor from example requires 12 V for power. Signal output is currect between 4 and 20 mA. Sometimes these sensors are grounded via engine block, so GND lead is not connected.

  • Page 39: Configuration For Absolute Sensor

    — Manual 9.2 Fuel Pressure - Rotax iS Fuel Pressure 10 bar BLACK GND RED +5V +5 V WHITE FUEL ROTOR +12 V Figure 24: Schematics for fuel pressure sensor with voltage output. Here we assumed a sensor which requires 5V to operate. Your sensor may be different and it may require 12V to operate.

  • Page 40: Voltage

    9.3 Voltage miniDaqu — Manual Absolute sensor option is available since software version 3.7. When compared to vented gage sensor, the only difference is in the Function settings. Table 11 shows the configuration. Table 11: Rotax iS engine with absolute fuel pressure sensor.

  • Page 41: Configuration

    Table 12: Channel C configuration for system voltage. Current In order to measure electrical current a CT-30 sensor or a CT-60 sensor is required. These sensors are produced by Kanardia. Standard shunts are not supported. CT-30 measures current between -30 and +30 A and CT-60 measures current between -60 and +60 A.

  • Page 42: Installation

    9.5 Fuel Level miniDaqu — Manual 9.4.1 Installation The power cable, which current shall be measured, must be cut at the place where sensor is to be installed. On each cable end, a M6 round cable terminal shall be fitted. Use two M6 screws with self locking nuts to connect the power cable to sensor fitting hole, so that the current will flow trough sensor in the arrow direction.

  • Page 43: General Principles

    — Manual 9.5 Fuel Level Option Selection/Setting Channel Any E or F Function El. current 1 Sensor Current 30 A Report time 0.5 – 1.0 s Filter 2.0 s Table 13: Connection of -30 to +30 A electrical current sensor.

  • Page 44: Installation

    9.5 Fuel Level miniDaqu — Manual 4. Daqu channel configuration: Use Nesis/Aetos/Emsis/Blu to enter Daqu channel configuration values. Consult values given in tables 14 and 15. All steps so far are necessary to get raw readings from sensor. In the active (capacitive) case, the readings will be voltages in 0-5 V range.
  • Page 45 — Manual 9.5 Fuel Level +5 V Sensor may have a warning contact (Usually not.) FUEL ROTOR +12 V Sensor may have extra ground for housing. (Usually not.) Figure 27: An example of resistive fuel sensor. Usually it has only two con- nections.

  • Page 46: Tank Shape Calibration

    9.6 Trim, Flap And Other Position Sensors miniDaqu — Manual +5 V FUEL Signal 0-5V ROTOR +12 V Figure 28: An example of capacitive fuel level probe connected to the +12 V power source. Some probes require 5 V, be careful.

  • Page 47: Variable Resistance

    — Manual 9.6 Trim, Flap And Other Position Sensors ˆ flap position, ˆ throttle position, ˆ and some others. These sensors are usually potentiometers (variable resistors) with different ranges. Daqu supports ranges of 400 Ω, 5 kΩ and 10 kΩ.

  • Page 48: Rotor Rpm

    9.7 Rotor RPM miniDaqu — Manual Option Selection/Setting Channel Any E or F Function Pitch trim Sensor Linear 5 V Report time 0.2 – 0.5 s Filter about 0.5 s Table 17: An example configuration for pitch trim sensor connected as variable voltage divider.

  • Page 49: Fuel Flow

    — Manual 9.8 Fuel Flow Option Selection/Setting Channel Y only Function Rotor RPM Sensor Digital Pulse Report time 0.2 – 0.5 s Filter about 0.5 s Pulses Reduction Table 18: An example for rotor RPM connected to Y channel. Sensor is in rotor head, hence the reduction ratio is set to 1.0.

  • Page 50: Installation

    9.8 Fuel Flow miniDaqu — Manual Practice shows that factory specifed number of pulses do not always give precise results. Thus a correction factor can be applied. Idealy, the correction factor is 1.0. When indicated fuel flow seems too low, a factor larger than 1.0 shall be applied and vice versa.

  • Page 51: Configuration

    Please read the following sections about the warranty and the limited opera- tion to get more information about the subject. 10.1 Warranty Kanardia d.o.o. warrants the Product manufactured by it against defects in material and workmanship for a period of twenty-four (24) months from retail purchase. Warranty Coverage Kanardia’s warranty obligations are limited to the terms set forth below:...
  • Page 52 Warranty. Refer to the licensing agreement accompanying such software for details of your rights with respect to its use. This warranty does not apply: (a) to damage caused by use with non-Kanardia products; (b) to damage caused by accident, abuse, misuse, flood, fire, earth- quake or other external causes;...

  • Page 53: 10.2 Tso Information

    No Kanardia reseller, agent, or employee is authorized to make any modification, extension, or addition to this warranty, and if any of the foregoing are made, they are void with respect to Kanardia. Limitation of Liability...

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