dji A2 User Manual
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dji A2 User Manual

Flight control system
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A2 Flight Control System
User Manual
V 1.12
2013.12.24 Revision
For Firmware V2.1 & Assistant Software V1.2 & DJI Assistant App V1.1.14
Thank you for purchasing DJI products. Please strictly follow these steps to mount and connect this system on your
aircraft, install the PC Assistant Software on your computer, as well as installing the DJI Assistant App on your
mobile device.
www.dji.com
Please regularly check the web page of corresponding products on our website
, which is
updated regularly. Product information, technical updates and manual corrections will be available on this website.
Due to unforeseen changes or product upgrades, the information contained in this manual is subject to change
without notice.
* This manual is for basic assembly and configuration; you can obtain more details and advanced instructions when
using the Assistant Software. To assure you have the latest information, please visit our website and download the
latest manual and current software version.
If you have any problems that you cannot solve during usage, please contact your authorized dealer.
© 2013 DJI Innovations. All Rights Reserved. 1

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Summary of Contents for dji A2

  • Page 1 For Firmware V2.1 & Assistant Software V1.2 & DJI Assistant App V1.1.14 Thank you for purchasing DJI products. Please strictly follow these steps to mount and connect this system on your aircraft, install the PC Assistant Software on your computer, as well as installing the DJI Assistant App on your mobile device.

  • Page 2: Table Of Contents

    NSTRUCTIONS FOR SSISTANT OFTWARE 2) U ....................41 ECOMMENDED APPING FOR UTABA RANSMITTER ..........................42 ETTINGS OF GAIN VALUES FOR EFERENCE FUTABA ..............................42 RANSMITTER SETUP OF DISCLAIMER ......................................43 TRADEMARK ......................................43 © 2013 DJI Innovations. All Rights Reserved. 2...

  • Page 3: Introduction

    AP applications. Based on the technology and design philosophy of DJI’s Ace series of high-performance controllers, the A2 offers you a brand new flight experience. Its flight mode setup provides a seamless transition for current Ace One, WKM AP professionals. The system has the following features: (1) Integrated with high-precision sensor components and a high-performance GPS Receiver.

  • Page 4: System Introduction

    System Introduction The A2 flight control system uses the Controller Unit at its core, which is connected with the IMU, GPS-COMPASS PRO、LED-BT-I、PMU and ESCs to complete the system. The system can achieve the height-lock and position-lock functions by using the IMU and the GPS, to control the aircraft.

  • Page 5: Assembly And Configuration

    The direction of the arrow in diagram indicates the rotation direction of the motor/propeller. For coaxial propellers: Blue propeller is at TOP; propeller is at Bottom. Otherwise all propellers are at top. © 2013 DJI Innovations. All Rights Reserved. 5...

  • Page 6: Hardware Connection Diagram

    The Controller Unit is the core component of the A2 flight control system: M1~M8 are used to connect to the ESCs of the aircraft. The built-in Receiver DR16 is based on DJI DESST technology, which can be used with the Futaba FASST series and DJI DESST series Transmitter.
  • Page 7 For enhancing the system integration and reliability, the A2 is integrated with a 2.4G receiver based on frequency hopping technology. The built-in Receiver can be used with the Transmitter of Futaba FASST series or DJI DESST series after linking. For users, you are only asked to carry out the link procedures, no extra requirement for connection.
  • Page 8 There is no need to enable the FailSafe function in the Transmitter. If the Receiver loses the signal from the Transmitter, the controller unit will enter into FailSafe automatically, and the aircraft will © 2013 DJI Innovations. All Rights Reserved...
  • Page 9 If using PPM Receivers please follow the diagram for connection, set the Receiver referring to your Receiver manual, and select the Receiver type as PPM in the Assistant software->Basic->R/C-> Receiver Type. Receiver Traditional Receivers © 2013 DJI Innovations. All Rights Reserved...
  • Page 10 If using Traditional Receivers, the DJI D-BUS Adapter is required. Please follow the diagram for connection, set the Receiver referring to your Receiver manual, and select the Receiver type as D-BUS in the Assistant software->Basic->R/C-> Receiver Type. Traditional Receiver Important ·...
  • Page 11 Working environment temperature: -5 C ~60 Storage environment temperature:<60 Orientation Requirements: Please mount the IMU as one of the following options. Configure in the A2 Assistant software ->Basic ->Mount -> IMU, and select the matched option. Pointing Forward Pointing Backward...
  • Page 12 Use the GPS bracket, and keep it away from other electronic equipment Usage Requirements The DJI logo should be facing the sky, with the orientation arrow pointing directly to the nose direction; otherwise it may lead to take off failure.
  • Page 13 PW port outputs power for the whole Flight Control System with current no more than 2A. PX port outputs power (3A@5V) and V-SEV signal using the low voltage protection function. In addition, there are two CAN-Bus ports for LED-BT-I connection and other DJI products (e.g. DJI 2.4G Data Link).

  • Page 14: Software Installation And Configuration

    Mac App Store. Locate the A2 icon in the Finder, press the Control key and then click the A2 icon (or right-click the A2 icon using a mouse). Choose Open from the shortcut menu, click Open in the prompt dialog box and then the software will launch.

  • Page 15: Configure Using Assistant Software On A Pc

    1.2.2 Configure using Assistant Software on a PC A2 flight control system can takes power via the USB port during configuration, no additional battery is required. Note that the USB port can supply power no more than 500mA, an additional battery is necessary if connection failure or intermittent working.

  • Page 16: Configure The Control Mode Switch

    The firmware version and the Assistant Software version should be matched when using the software to configure the A2 flight control system, otherwise the software will not work. It’s recommended to keep the firmware version and Assistant Software version up to date to avoid this issues.
  • Page 17 Users must re-configure the Endpoint and FailSafe functions in the Transmitter to make the cursor point to the right control mode and the according areas become blue. © 2013 DJI Innovations. All Rights Reserved 17 |...

  • Page 18: Configuration Checking

    Advanced configuration, users can configure it according to their requirements after reading the ○ ⑦~ manual. ○ Check the Channel Map between the Transmitter and A2 flight control system. © 2013 DJI Innovations. All Rights Reserved 18 |...

  • Page 19: Compass Calibration

    Mechanical structures of the aircraft has changed Drifting during flying Evident drifts occurred in flight such as the aircraft doesn’t fly straight Attitude errors LED often blinks error indicator when the aircraft turns around. © 2013 DJI Innovations. All Rights Reserved 19 |...

  • Page 20: Basic Flying

    FailSafe Mode if the Transmitter signal is Protection matter if Transmitter signal recovers or not, lost and the system will exit FailSafe once system will not exit FailSafe mode automatically. the signal recovers. © 2013 DJI Innovations. All Rights Reserved 20 |...
  • Page 21 Regain control in emergency recommended Good GPS signal GPS signal bad The difference between ATTI. Mode of position-2 and ATTI. Mode of position-3 is that they are working differently in protection situations. © 2013 DJI Innovations. All Rights Reserved 21 |...

  • Page 22: Flying Environment Requirements

    In addition, check the following items to make sure the system can work. The Transmitter battery is fully charged. The aircraft battery is fully charged. Do not over load the aircraft. © 2013 DJI Innovations. All Rights Reserved 22 |...

  • Page 23: Power On And Check

    If motors fail to start, please refer to the following list for trouble shooting. The Controller Unit fails to obtain the firmware version of IMU and GPS, please check the connection or upgrade the IMU and GPS. © 2013 DJI Innovations. All Rights Reserved 23 |...
  • Page 24 (14) The Transmitter disconnected, the motors will fail to spool up. (15) The A2 flight control system is connecting and communicating with the Assistant software, the motors will fail to spool up. © 2013 DJI Innovations. All Rights Reserved 24 |...

  • Page 25: Basic Flying Test

    When both roll and pitch sticks are at midpoint： GPS ATTI. Mode: the aircraft will be stabilized and locked in Pitch horizontal position. ATTI. Mode: the aircraft will be Stick stabilized but unlocked in horizontal position. © 2013 DJI Innovations. All Rights Reserved 25 |...
  • Page 26 Moreover, you may come across the following abnormal situation, please carry out the operation below. Compass data is abnormal; the LED blinks yellow and green alternatively. Please re-calibrate the Compass. IMU data is abnormal, the LED blinks four green. Please contact your dealer. © 2013 DJI Innovations. All Rights Reserved 26 |...

  • Page 27: Protection Functions Setting

    It is recommended to set the Go Home switch in the Assistant software. Users are suggested to enter FailSafe and go home by using the Go Home switch rather than turning off the Transmitter in emergency situations. © 2013 DJI Innovations. All Rights Reserved 27 |...

  • Page 28: Low Voltage Protection

    The aircraft will not hover when the throttle stick is at the mid point. Push the throttle stick to 90% of its endpoint, the aircraft will still ascend slowly if you continue to pull the throttle stick, and the control of Pitch, Roll and Yaw are the same as before. © 2013 DJI Innovations. All Rights Reserved 28 |...
  • Page 29 If the second level low voltage alert occurs in below procedures, the aircraft will descend automatically. When the aircraft is in FailSafe and Go Home process。 When the aircraft is controlled by the Ground Station. © 2013 DJI Innovations. All Rights Reserved 29 |...

  • Page 30: Advanced Functions

    4 Advanced Functions IOC and Gimbal functions of A2 and how to use A2 Assistant app via a mobile device. 4.1 IOC (Intelligent Orientation Control) function Help users to set the Flying direction; Should be enabled in Assistant software. Flying direction The flying direction of aircraft when pushing the Roll and Pitch sticks.
  • Page 31 3. Current control mode is in GPS ATTI. Mode or ATTI. Mode of switch position-2. 3 IOC Step flying test Please study the following diagram then make an IOC flying test. IOC LED indicator blinks ( (2) means not all stick(s) at the midpoint) © 2013 DJI Innovations. All Rights Reserved 31 |...
  • Page 32 During HL flying if one of the following conditions occur, the flight control system will exit HL and enter into CL: the aircraft is within of 10m from HP; the control mode is changed to ATTI. Mode; <6(LED © 2013 DJI Innovations. All Rights Reserved 32 |...

  • Page 33: Servo Gimbal Function

    D1 channel with a channel on Receiver as your demands). 4.4 Attitude Control When One Motor Output Fails For Hexa-rotor, including Hexa-rotor I, Hexa-rotor V, Hexa-rotor IY and Hexa-rotor Y, the aircraft with A2 flight control system is attitude controllable when one motor output fails.

  • Page 34: Dji Assistant App Usage

    Bluetooth version is required to be 4.0 or above. Required versions of DJI Assistant App & Firmware Require DJI Assistant App version 1.1.14 or above and the firmware of A2 Controller Unit version 2.1 or above, as well as the firmware of LED-BT-I module version 2.0 or above.
  • Page 35 The gain value displayed on Mobile Device and PC may be a little different, that is OK for use. Step 3 Flying Test Procedures Get the aircraft ready, run the DJI Assistant and make sure it is connected with the main controller. (The indicators on the DJI Assistant are Start the motors.

  • Page 36: Appendix

    Record a Point Of Interest successfully (20) Bluetooth A2 Assistant is connected / disconnected to the flight control system (∝) When the LED blinks (3), please hover or land the aircraft and wait for the white LED to go off.

  • Page 37: Specifications

     Octo-rotor: X8, I8, V8 Supported ESC output 400Hz refresh frequency. Supported Transmitter for Built-in Receiver Futaba FASST (MULT, MLT2, 7CH) Series and DJI DESST Series External Receiver Supported Futaba S-Bus, DSM2, PPM Recommended Battery 2S ~ 6S LiPo Other DJI Products Supported...

  • Page 38: Faq

    Use with other DJI products The A2 can be used with other DJI products such as iOSD Mark II, Z15 series gimbals, S800 EVO and 2.4G Data Link(iPAD Ground Station function), H3-2D, etc. Users should connect them to the correct CAN-Bus port.
  • Page 39 If the 2.4G Data Link and H3-2D are used at the same time, a CAN-HUB module is required. When using the A2 flight control system firmware version V2.1, the firmware of other DJI products used in conjunction must be matched with the requirements in the table below.

  • Page 40: Channel Mapping Instructions For Pc Assistant Software

    Receiver channels. If you enable the Controller Unit, unmapped. Gimbal functions in Assistant Software, then the F3/F2 are used for gimbal control; even D3/D2 are mapped to channels of Receiver, © 2013 DJI Innovations. All Rights Reserved 40 |...

  • Page 41: Recommended Mapping For Futaba Transmitter (Mode 2) User

    Knob switch, e.g. LD, RD D1/D3/D2 ---- ---- Channe 9 (AUX1) 2-Position switch, e.g. SF Channe 10 (AUX2) 3-Position switch, e.g. SG Go Home Channe 11 (AUX3) 2-Position switch with spring back function, e.g. SH © 2013 DJI Innovations. All Rights Reserved 41 |...

  • Page 42: Settings Of Gain Values For Your Reference

    FUTABA 10CG or 10C with TM-10 FUTABA 9C SUPER with TM-7 or TM-8 Default FUTABA 8FG SUPER FRANCE\GENERAL MLT2\MULT\7CH FUTABA 8FG FRANCE\GENERAL MULT/7CH FUTABA 7C 2.4G Default Default FUTABA 6EX FASST Default Default © 2013 DJI Innovations. All Rights Reserved 42 |...

  • Page 43: Disclaimer

    Other losses that are not covered by the scope of DJI Innovations liability. Trademark DJI and A2 are registered trademarks of DJI Innovations. Names of product, brand, etc., appearing in this manual are trademarks or registered trademarks of their respective owner companies. This product and manual are copyrighted by DJI Innovations with all rights reserved.

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