dji A3 Manuel utilisateur
2016.05
V1.0
User Manual
2
©2016 DJI. All Rights Reserved.
Using this manual
Legends
Warning Important Hints and Tips Reference
Before Flight
The following tutorials and manuals have been produced to ensure you to make full use of your
A3/A3 Pro.
1. In the Box
2. Safety Guidelines and Disclaimer
3. Quick Start Guide
4. User Manual
Make sure all of the parts listed in the In the Box document are included in the package.
The information in the Safety Guidelines and Disclaimer document aects your safety and your
legal rights and responsibilities. Read this entire document carefully to ensure proper conguration
before use.
Follow the Quick Start Guide step by step to setup and use the A3 or A3 Pro correctly by
referring to the User Manual and using the DJI Assistant 2.
The A3 and A3 Pro are powerful systems. To make use of all their capabilities, read the user
manual thoroughly before conguring the device.
Searching for Keywords
Search for keywords such as “battery” and “install” to nd a topic. If you are using Adobe Acrobat
Reader to read this document, press Ctrl+F on Windows or Command+F on Mac to begin a
search.
Navigating to a Topic
View a complete list of topics in the table of contents. Click on a topic to navigate to that
section.
Printing this Document
This document supports high resolution printing.
©2016 DJI. All Rights Reserved.
3
Contents
Using this manual
Legends 2
Before Flight 2
Product Prole 4
Introduction 4
System Components 4
Installation 7
Overview 7
Preparation 8
Start the Installation 11
A3/A3 Pro Functions 19
Compass Calibration 19
Flight Functions 20
Protection Functions 23
Flight Limits and Flight Restriction Areas 25
Using with DJI GO app 29
Triple Modular Redundancy 32
SDK 33
Flight Control System Checklist 33
Hardware Checklist 33
DJI Assistant 2 Checklist 33
Flight Safety 34
Appendix 34
LED Indicators 34
Troubleshooting 35
Specications 36
A3/A3Pro User Manual
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©2016 DJI. All Rights Reserved.
Product Prole
Introduction
The DJI A3 series is a reliable and robust flight control system that is ideal for a wide range of
multirotor aerial platforms. It uses advanced sensor fusion algorithms and redundancy design to
maintain complete stability and integrity of the aerial system.
The A3 series is fully compatible with the DJI Onboard and Mobile SDKs, allowing developers to
optimize the system for specic applications. When used with the DJI Lightbridge 2, it has direct
access to features in the DJI GO app such as Intelligent Flight Modes. With DJI Guidance, the
aircraft can maintain hovering accuracy and obtain obstacle sensing information for safety. The A3
series is compatible with the DJI Intelligent Landing Gear, Zenmuse Z15 gimbal, Parachute and
higher accuracy RTK GPS.
With all essential components integrated into the A3 ight controller (including the IMU, barometer
and data recorder), the device is powerful and highly compact. The A3 can be upgraded to the
A3 Pro by installing two upgrade kits. The A3 Pro’s three GPS units and IMUs add triple modular
redundancy to greatly reduce the risk of system failure.
*The GPS-Compass Pro modules in the A3 Pro upgrade kit are the same as the A3’s. The IMU PRO module
includes an IMU with a built-in Barometer.
System Components
How the System Works
The flight controller is the core module of the A3 fight control system, which utilizes the IMU,
barometer, GPS and compass to realize accurate attitude control and high-precision positioning
for the aircraft. Multiple interfaces for SDK development and DJI devices, such as the RTK
GPS and Zenmuse Z15 gimbals, are also provided. The DJI Assistant 2 software allows you to
congure parameters for installation, ight control, and other accessed devices. A simulator is
also available for simulated flight practice. When used with the DJI Lightbridge 2, the A3 has
direct access to features in the DJI GO app such as Intelligent Flight Modes.
A3/A3Pro User Manual
©2016 DJI. All Rights Reserved.
5
A3 and A3 Pro Parts
Flight Controller
Feature Highlights
1. Independent CAN1 and CAN2 ports and API Serial port for the SDK. The CAN1 port is used to
connect the GPS-Compass Pro and DJI devices (e.g. RTK GPS) while the CAN2 port is used
to connect SDK devices.
2. Built-in inertial sensors for the measurement of aircraft attitude and built-in pressure sensor for
the detection of aircraft altitude.
3. Support for multiple receiver types. If used with the DJI Lightbridge 2, the A3 has direct access
to features in the DJI GO app such as Intelligent Flight Modes.
4. M1 to M8 are used to connect the ESCs of the aircraft and iESC for DJI Intelligent ESC
communication.
5. 4 independent and congurable output ports and 4 I/O ports. These ports can be customized
and connect other DJI devices (e.g. DJI Zenmuse Z15 gimbals, DJI Intelligent Landing Gear) or
SDK devices.
Port Diagram
4
5
6
7
8
3
1
2
9
10
12
11
13
14
15
1. IMU1 Port
Communicates with the IMU Pro module.
2. CAN1 Port
Dedicated DJI CAN-Bus port. Communicates
with the A3 GPS-Compass Pro or other DJI
devices (e.g. Real Time Kinematic (RTK) GPS
system).
3. Orientation Arrow
The FC module should be mounted with
the arrow pointing in the specified direction
(Orientation can be set in the DJI Assistant 2).
4. Status Indicator
Indicates the status of the ight controller and
triple modular redundancy system.
5. RF Port
Communicates with the DJI Lightbridge 2 Air
System.
6. iESC Port
Communicates with the DJI Smart ESC.
7. M1-M8 Pins
Connects to the corresponding ESC PWM
port for each motor.
8. LED Port
Communicates with the LED module.
9. IMU2 Port
Communicates with the IMU Pro module.
10. PMU Port
Derives power from the PMU.
11. CAN2
Communicates with an SDK device.
12. API Port
Communicates with an SDK device.
A3/A3Pro User Manual
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©2016 DJI. All Rights Reserved.
1. Power Port (9V 3A)
Connected to the Flight Controller for
power supply.
2. iBAT
Communicates with the DJI Intelligent
Flight Battery.
3. 3S-12S
Derives power from the DJI Intelligent Flight Battery or other LiPo batteries.
GPS-Compass Pro Module
The GPS-Compass Pro module has a built-in GPS and compass. The compass is used for
geomagnetic eld measurements. Compass calibration is required before use. DO NOT use or
store the compass in environments with ferromagnetic materials.
Note that the GPS-Compass Pro module in the UPGRADE KIT is the same as the one in the A3 package.
1
2
3
PMU Module
Supported the DJI Intelligent Flight Battery, with built-in PMU providing power for the whole Flight
Control System and low voltage protection function.
1
3
2
LED Module
The LED Module has an integrated LED Indicator and Micro USB port.
A. The LED is mainly for ight control system status indication during ight (e.g. Flight Mode).
B. In addition, there is a Micro USB port for rmware upgrades via DJI Assistant 2.
13. F5-F8 Pins
Multifunction PWM I / O ports.
14. F1-F4 Pins
Multifunction PWM output ports.
15. S-Bus Port
Communicates with a DJI DR16 or S-Bus
receiver.
1. Status Indicator
Indicates the status of the GPS-Compass Pro
module and triple modular redundancy system.
2. Orientation Arrow
The GPS-Compass Pro module should be
mounted with the arrow pointing to the aircraft’s
nose.
3. Extended CAN1 Port
Dedicated DJI CAN-Bus port. Communicates with DJI devices (e.g. Real Time Kinematic (RTK)
GPS system).
A3/A3Pro User Manual
©2016 DJI. All Rights Reserved.
7
1
2
IMU Pro Module
Includes built-in inertial sensors for the measurement of aircraft attitude and a built-in pressure
sensor for detecting aircraft altitude. The IMU Pro has been calibrated before delivery and
should be used under the specied temperature range. Using the IMU Pro outside the specied
temperature range may have a negative eect on the IMU’s performance.
1
3
2
1. Flight Status Indicator
Indicates the status of the ight control system.
2. Micro USB Port
Used to congure and upgrade the A3 or A3 Pro via
DJI Assistant 2.
1. Orientation Arrow
The IMU Pro module should be mounted with the arrow pointing to the specied orientation
(Orientation can be set in the DJI Assistant 2).
2. Status Indicator
Indicates the status of the IMU Pro module and triple
modular redundancy system.
3. CAN1 GPS Port
Communicates with the GPS-Compass Pro module.
1Ensure all parts are in good condition.
2Select the A3 or A3 Pro connection.
3Watch the “Installation Demo” and “Connecting the Modules” video tutorials for an overview of
the installation process. Then mount the parts to your airframe and connect them properly.
http://www.dji.com/product/a3/video
4Watch the “How to use DJI Assistant 2” video tutorial for a brief introduction on how to
congure the parameters. Then launch the DJI Assistant 2 and congure the parameters.
http://www.dji.com/product/a3/video
Installation
Overview
Installation Procedure
Read this section carefully and follow the procedures below to install your ight control system,
otherwise the ight control system may not normally work.
A3/A3Pro User Manual
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©2016 DJI. All Rights Reserved.
Preparation
Equipment
Ensure you have a suitable airframe, remote controller system, ESCs and battery to use with
the A3 series. You can also prepare optional equipment, e.g. DJI Intelligent Landing Gear, DJI
Zenmuse Z15, and DJI Guidance. Below is a list of compatible equipment.
A. Airframes
The following airframes are supported. Choose an airframe and assemble it properly.
Remember to select the corresponding airframe type in DJI Assistant 2 after assembling the
airframe and connecting the cables.
5Ensure the motor, remote controller channels and Failsafe settings are correct.
6 Ensure the devices connected to the ight controller are working normally and correctly set in
DJI Assistant 2.
The following diagram shows a completed installation for the S900 (with the PMU module
on the bottom of the aircraft’s upper plate).
A3/A3Pro User Manual
©2016 DJI. All Rights Reserved.
9
The arrow directions in the above diagram indicate the rotation direction of the motor/
propeller. Dark colored arm (s) indicate the direction of the aircraft’s nose.
For coaxial propellers, dark colored propellers are at the top and gray colored propellers
are at the bottom. Otherwise, all propellers are at the top.
B. Remote Controller System
The following remote controller systems are supported. Whatever type of receiver is used,
please make sure that the receiver and remote controller are linked properly before use. Be
sure to link the receiver and remote controller according by following all the procedures in
the remote controller and receiver user manual, and according to the congurations in DJI
Assistant 2.
DJI Lightbridge 2
DJI Lightbridge 2 lets you use DJI GO to congure the ight control system parameters and
utilize Intelligent Flight Modes.
DR16
The DR16 receiver does not support the Point of Interest (POI) and Waypoint ight modes in
DJI GO.
S-Bus
The S-BUS receiver does not support the Point of Interest (POI) and Waypoint ight modes
DJI GO.
There is no need to enable the Failsafe function on the remote controller. Once the
receiver loses signal from the remote controller, the controller unit will enter Failsafe
mode automatically, and the aircraft will hover or return-to-home & land according to
the Failsafe congurations in DJI Assistant 2.
C. ESC
ESC output should be 400Hz. DJI Propulsion systems are recommended.
The iESC port can connect to the DATA port if using the DJI Intelligent ESC.
D. Battery
Both the 3S-12S LiPo battery and the DJI Intelligent Flight Battery are supported.
The DJI Intelligent Flight Battery provides voltage, battery level and battery cell information, as
well as low battery level protection.
If using a LiPo battery, only the voltage information and low voltage protection are available.
The S900 and DJI Lightbridge 2 are recommended for the A3 series, and are used as
examples in this manual.
A3/A3Pro User Manual
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©2016 DJI. All Rights Reserved.
DJI S900 DJI Lightbridge 2
Preparing DJI Assistant 2
Download DJI Assistant 2
DJI Assistant 2 is used to congure the ight control system.
http://www.dji.com/product/a3/download
Supports Windows 7 (or later) or Mac OS X 10.9 (or later).
Installing DJI Assistant 2
DJI Assistant 2 will guide you through setting the Flight Control System’s parameters. Carefully
follow the on-screen prompts to congure the Flight Control System.
Installing and Running on Windows
Supports Windows 7, Windows 8, Windows 10 (32 or 64 bit).
1. Connect the Micro USB port on the LED module to a PC via a Micro USB cable.
2. Run the software assistant installer and follow the prompts to nish installation.
3. Double click the software assistant icon on your Windows desktop to launch the software.
Installing and Running on Mac OS X
Supports Mac OS X 10.9 (or later).
1. Run the DMG installer and follow the prompts to nish installation.
2. If using Launchpad to run DJI Assistant 2 for the rst time, Launchpad will not allow access
because the software has not been reviewed by the Mac App Store.
3. Locate the DJI Assistant 2 icon in the Finder, press the Control key and then click the DJI
Assistant 2 icon (or right-click the DJI Assistant 2 icon using a mouse). Choose Open from the
shortcut menu, click Open in the dialog box and the software will launch.
4. After the rst successful launch, direct launching of the software can be achieved by double-
clicking the DJI Assistant 2 icon in the Finder or using Launchpad.
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