Kanardia MiniDaqu Manuale utente

miniDaqu

Engine Management System

Manual

Kanardia d.o.o.

June 2022

Revision 1.4

miniDaqu — Manual

Contact Information

Publisher and producer:

Kanardia d.o.o.

Lopata 24a

SI-3000

Slovenia

Tel: +386 40 190 951

Email: info@kanardia.eu

A lot of useful and recent information can be also found on the Internet. See

http://www.kanardia.eu for more details.

This document is published under the Creative Commons, Attribution-Share-

Alike 3.0 Unported licence. Full license is available on http://creativecommons.

org/licenses/by-sa/3.0/legalcode web page and a bit more human read-

able summary is given on

http://creativecommons.org/licenses/by-sa/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

X) based document creation

system using Kile running on Linux operating system. Most of the ﬁgures were

drawn using Open Oﬃce Draw, Inkscape and QCad applications. Photos and

scanned material was processed using Gimp. All document sources are freely

available on request under the licence mentioned above and can be obtained

by email. Please send requests to info@kanardia.eu.

Kanardia 2019-2022

miniDaqu — 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 2

miniDaqu — Manual

Revision History

The following table shows the revision history of this document.

Rev. Date Description

1.0 January 2019 Initial release.

1.1 March 2019 Uniﬁed DB9 markings.

1.2 July 2020 Digital PNP sensor schema ﬁx.

1.3 June 2021 Clarify description of output pins.

1.4 June 2022 PNP pulldown value corrected.

Kanardia 2019-2022

miniDaqu — Manual

Kanardia 2019-2022 4

miniDaqu — Manual CONTENTS

Contents

1 Introduction 8

1.1 General Description . . . . . . . . . . . . . . . . . . . . . . . . 8

1.2 Technical Speciﬁcations . . . . . . . . . . . . . . . . . . . . . . 9

1.3 PowerSupply............................ 10

1.4 OutputPowerPins......................... 11

1.5 Channels .............................. 11

1.5.1 Analog Channels . . . . . . . . . . . . . . . . . . . . . . 11

1.5.2 Digital Channels . . . . . . . . . . . . . . . . . . . . . . 12

1.6 OutputPins............................. 12

2 Installation 12

2.1 GeneralRules............................ 13

2.2 Connectors and Cables . . . . . . . . . . . . . . . . . . . . . . . 13

2.2.1 Kanardia CAN Bus Connector . . . . . . . . . . . . . . 13

2.2.2 ECU Connector . . . . . . . . . . . . . . . . . . . . . . . 15

3 Wiring in General 15

3.1 ConnectionWires.......................... 16

3.2 Daqu Ground Pin (GND) . . . . . . . . . . . . . . . . . . . . . 16

3.3 ResistiveSensors .......................... 16

3.4 Thermocouples ........................... 17

3.5 Analog Active Sensors . . . . . . . . . . . . . . . . . . . . . . . 17

3.5.1 Voltage Output . . . . . . . . . . . . . . . . . . . . . . . 17

3.5.2 Current Output . . . . . . . . . . . . . . . . . . . . . . . 18

3.6 Potentiometers ........................... 19

3.6.1 Variable Resistor . . . . . . . . . . . . . . . . . . . . . . 19

3.6.2 Variable Voltage Divider . . . . . . . . . . . . . . . . . . 19

3.7 Digital Active Sensors . . . . . . . . . . . . . . . . . . . . . . . 20

3.7.1 NPN – Open Collector Output . . . . . . . . . . . . . . 21

3.7.2 PNP – Open Drain Output . . . . . . . . . . . . . . . . 21

Kanardia 2019-2022

CONTENTS miniDaqu — Manual

4 Alarm Signal 21

4.1 Direct Connection . . . . . . . . . . . . . . . . . . . . . . . . . 22

4.2 Indirect Connection . . . . . . . . . . . . . . . . . . . . . . . . 22

4.3 Conﬁguration............................ 22

5 RPM Signal 24

5.1 Connection ............................. 24

5.2 Conﬁguration............................ 24

6 Rotax iS 25

6.1 ECU CAN Bus Connection . . . . . . . . . . . . . . . . . . . . 25

6.2 Conﬁguration............................ 25

6.3 Automatic Start Power Switch . . . . . . . . . . . . . . . . . . 25

6.3.1 Installation ......................... 26

6.3.2 Conﬁguration........................ 27

6.3.3 Operation.......................... 28

7 ULPower Engines 28

7.1 ECU and AUX Parameters . . . . . . . . . . . . . . . . . . . . 29

7.2 ECU CAN Bus Connection . . . . . . . . . . . . . . . . . . . . 30

7.2.1 OneECU .......................... 30

7.2.2 TwoECUs ......................... 31

7.3 ECU RS-232 Connection . . . . . . . . . . . . . . . . . . . . . . 31

7.4 Conﬁguration............................ 32

8 MWﬂy Engines 32

8.1 CC-mModule............................ 33

Kanardia 2019-2022 6

miniDaqu — Manual CONTENTS

9 Additional Sensors 33

9.1 FuelPressure ............................ 34

9.1.1 Sensor Type Selection . . . . . . . . . . . . . . . . . . . 34

9.1.2 Installation ......................... 34

9.1.3 Conﬁguration........................ 35

9.1.4 Variable Voltage . . . . . . . . . . . . . . . . . . . . . . 35

9.1.5 Variable Current . . . . . . . . . . . . . . . . . . . . . . 36

9.2 Fuel Pressure - Rotax iS . . . . . . . . . . . . . . . . . . . . . . 36

9.2.1 Conﬁguration for Vented Gage Sensor . . . . . . . . . . 36

9.2.2 Conﬁguration for Absolute Sensor . . . . . . . . . . . . 37

9.3 Voltage ............................... 38

9.3.1 Installation ......................... 38

9.3.2 Conﬁguration........................ 39

9.4 Current ............................... 39

9.4.1 Installation ......................... 40

9.4.2 Conﬁguration........................ 40

9.5 FuelLevel.............................. 40

9.5.1 General Principles . . . . . . . . . . . . . . . . . . . . . 41

9.5.2 Installation ......................... 42

9.5.3 Resistive Fuel Level Sensors . . . . . . . . . . . . . . . . 42

9.5.4 Active Sensors . . . . . . . . . . . . . . . . . . . . . . . 42

9.5.5 Tank Shape Calibration . . . . . . . . . . . . . . . . . . 44

9.6 Trim, Flap And Other Position Sensors . . . . . . . . . . . . . 44

9.6.1 Variable Resistance . . . . . . . . . . . . . . . . . . . . . 45

9.6.2 Variable Voltage Divider . . . . . . . . . . . . . . . . . . 45

9.6.3 Min/Max Values . . . . . . . . . . . . . . . . . . . . . . 45

9.7 RotorRPM............................. 46

9.8 FuelFlow .............................. 47

9.8.1 Installation ......................... 48

9.8.2 Conﬁguration........................ 49

10 Limited Conditions 49

10.1Warranty .............................. 49

10.2TSOInformation.......................... 51

Kanardia 2019-2022

1. Introduction miniDaqu — Manual

1 Introduction

First of all, we would like to thank you for purchasing our product. Mini Daqu

is data acquisition unit designed for monitoring engine parameters. Mini Daqu

reads various engine sensors, processes the readings and transmits them to the

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. The manual provides

information about the installation of the mini Daqu unit and connecting it

with sensors, probes and transducers.

Daqu comes in two versions:



Standard, larger version is used for most engines: Rotax, Lycoming,

Continental, UL-Power, Simonini, Hirth, etc. Here, engine sensors are

directly connected to four twelve pin connectors. It also has one ﬁve pin

CAN connector and ϕ5 mm outer diameter intake manifold pressure

connector.



Mini version a.k.a. Mini Daqu is used for some modern engines equipped

with digital output from their ECU. Here, most engine sensors are con-

nected to ECU and mini Daqu simply reads sensor values from ECU

digital output. Besides information from ECU, mini Daqu allows con-

necting additional sensors like rotor RPM, fuel level, trim position, etc.

Mini Daqu is typically used for Rotax iS, D-motor and UL Power en-

gines. Mini Daqu has only one twelwe pin connector for sensors and

two D-SUB nine pin connectors – one for ECU and the other for CAN

network.

This manual is dedicated to mini Daqu, hereinafter referred to as Daqu.

1.1 General Description

Daqu is en electronics device, which is used to connect various engine sen-

sors, probes and transducers. It reads analogue or digital signals, converts

the signals into digital CAN messages and transmits the messages over CAN

network where other devices connected to the network access these messages.

In addition, it connects to engine ECU unit. The data received from the ECU

is converted and re-transmitted on the CAN network. This way it eﬃciently

Kanardia 2019-2022 8

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