dji N3-AG User manual

2017.08
V2.0
User Manual
A3-AG/N3-AG
Agriculture Kit

2
©2017 DJI All Rights Reserved.
Contents
A3-AG Introduction 3
N3-AG Introduction 6
Agriculture Management Unit (AMU) Introduction 9
Installation 10
Overview 10
Start the Installation 13
System Functions 23
Flight Modes 23
Operation Modes 23
Operation Resumption 29
Empty Tank Warning 32
Return to Home (RTH) 33
Attitude Control When One Motor Output Fails 35
Propulsion System Protection 35
System Data Protection 35
Altitude Stabilization System 36
Redundancy System 37
Flight 39
Operation Environment 39
Flight Limits and No-Fly Zones 39
Pre-Flight Checklist 41
Compass Calibration 41
Flight Control 43
DJI Assistant 2 44
Installation and Launching 44
Using DJI Assistant 2 44
Appendix 46
Specications 46
Flight Status LED Indicator Descriptions 48
FAQ 49

©2017 DJI All Rights Reserved.
3
A3-AG Introduction
The A3-AG Agriculture Flight Control System, based on the DJI A3 flight control system, is
designed for agriculture applications. It consists of flight controller, GPS-Compass Pro, PMU
(Power Management Unit) and LED module. The A3-AG can be upgraded to the A3-AG Pro triple
modular redundancy system by installing two upgrade kits.
9
10
4
5
6
7
8
3
1
2
12
11
13
14
15
A3-AG and A3-AG Pro Parts
Flight Controller
Feature Highlights
1. Built-in inertial sensors for the measurement of aircraft attitude and built-in pressure sensor for
the detection of aircraft altitude.
2. Support for multiple receiver types. If used with the DJI Datalink 3, the A3-AG has direct
access to features in the DJI MG app such as intellignt planning and operation.
3. M1 to M8 are used to connect the ESCs of the aircraft and iESC for DJI Intelligent ESC
communication.

A3-AG/N3-AG User Manual
4
©2017 DJI All Rights Reserved.
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. Agriculture
Management Unit (AMU) or Real Time
Kinematic (RTK) GPS system).
3. Orientation Arrow
The FC module should be mounted with
the arrow pointing in the specied 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 Datalink 3 Air
System.
6. iESC Port
Communicates with the DJI Smart ESC
using the Smart ESC Communication Cable.
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
Reserved port.
12. API Port
Reserved port.
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.
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-AG
package.
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. Agriculture Management
Unit (AMU) or Real Time Kinematic (RTK) GPS system).
1
2
3

A3-AG/N3-AG User Manual
©2017 DJI All Rights Reserved.
5
1. Power Port (9V 3A)
Connected to the Flight Controller for
power supply.
2. iBAT
Reserved.
3. 3S-12S
Derives power from the LiPo batteries.
PMU Module
Supported the LiPo batteries. with built-in PMU providing power for the whole Flight Control
System and low voltage protection function.
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.
IMU Pro Module (included in the upgrade kit)
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 specied temperature range. Using the IMU Pro outside the specied
temperature range may have a negative eect on the IMU’s performance.
1. Flight Status Indicator
Indicates the status of the ight control system.
2. Micro USB Port
Used to congure 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 specied 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.
1
3
2
1
2
1
3
2

6
©2017 DJI All Rights Reserved.
N3-AG Introduction
The N3-AG Agriculture Flight Control System, based on the DJI N3 flight control system, is
designed for agriculture applications. It consists of ight controller, GNSS-Compass Pro, PMU
(Power Management Unit) and LED module. The N3-AG can be upgraded to the N3-AG Pro
redundancy system by installing an upgrade kit.
N3-AG Parts
Flight Controller
Feature Highlights
1. Built-in inertial sensors for the measurement of aircraft attitude and built-in pressure sensor for
the detection of aircraft altitude.
2. Support for multiple receiver types. If used with the DJI Datalink 3, the A3-AG has direct
access to features in the DJI MG app such as intellignt planning and operation.
3. M1 to M8 are used to connect the ESCs of the aircraft and iESC for DJI Intelligent ESC
communication.
LED
1
2
3
4
5
6
7
8
9
10
11
12
13

A3-AG/N3-AG User Manual
©2017 DJI All Rights Reserved.
7
Flight Controller
1. PMU Port
Derives power from the PMU module.
2. LED Port
Communicates with the LED module.
3. M1-M8 Pins
Connects to the corresponding ESC
PWM port for each motor.
4. iESC Port
Communicates with the DJI Smart ESC
using the Smart ESC Communication
Cable.
5. RF Port
Communicates with the DJI Datalink 3
Air System.
6. Status Indicator
Indicates the status of the ight controller.
7. CAN2 Port
CAN Bus port (Reserved port).
8. S-Bus Port
Communicates with a DJI DR16 or S-Bus
receiver.
9. F1-F4 Pins
Multifunction PWM output ports.
10. F5-F8 Pins
Multifunction PWM I / O ports.
11. API Port
Reserved port.
12. EXP Port
Extended port (Communicates with the
A3 upgrade kit).
13. Orientation Arrow
The ight controller orientation arrow.
GNSS-Compass Module
The GNSS-Compass module has a built-in GPS/GLONASS 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.
1. Orientation Arrow
The GNSS-Compass module
should be mounted with the arrow
pointing toward the aircraft nose.
2. GNSS-Compass Status Indicator
Indicates the status of the GNSS-
Compass Module.
3. Extended CAN1 Port
Dedicated DJI CAN-Bus port. Communicates with a DJI device.
1
2
3

A3-AG/N3-AG User Manual
8
©2017 DJI All Rights Reserved.
1. iBAT
Reserved.
2. Power Status Indicator
Indicates the power status of the
ight control system.
3. 3S-12S
Derives power from LiPo battery.
4. Power Port (9V 2A)
Connected to the Flight Controller for power supply.
5. CAN1 Port
Connected to the GNSS-Compass module.
PMU Module
Supported the LiPo batteries. with built-in PMU providing power for the whole Flight Control
System and low voltage protection function.
1. Flight Status Indicator
Indicates the status of the flight control
system.
2. Micro USB Port
Used to congure and upgrade the N3 via DJI
Assistant 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.
2
3
4
1
5
LED
1
2

©2017 DJI All Rights Reserved.
9
Agriculture Management Unit (AMU) Introduction
The Agriculture Management Unit (AMU) is equipped with essential expansion ports to support
DJI modules such as Altitude Stabilization System, delivery pump, RTK.
1. 12V 2A
Reserved power port, max operating
voltage / current: 12V@2A
2. 15V 6A
Reserved power port, max operating
voltage/current: 15V@6A. Users can
connect a DJI data protection module to
this port for power supply.
3. PWM
Reserved port.
4. Level Meter & Flow Meter Port
Reserved port.
5. D485
Reserved port.
6. Radar
Connected the DJI Altitude Stabilization
System.
7. RTK
Connected to the DJI D-RTK device.
8. Power Port
XT60 port. Connected to an external
power supply (6S - 12S).
9. Pump
Connected to the DJI integrated pump.
10. CAN
CAN Bus port. Connected to the CAN1
port on the ight controller.
11. CAN
Same as the 10th port.
12. UART I
Battery data communication port
(reserved).
13. UART II
Battery data communication port
(reserved).
14. Working Status Indicator
It will glow solid green when the device
is working normally. It will be solid red
when the device is abnormal or during
rmware update.
9 10 11
12 13
1 2 3 4 5 6 7
8
14

10
©2017 DJI All Rights Reserved.
Installation
Installation steps are similar for both the N3-AG and A3-AG. The descriptions in this chapter use
the N3-AG as an example. Unless specied, the following context can also be applied to the A3-
AG 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.
1Ensure all parts are in good condition.
2Mount the parts to your airframe and connect them properly.
3 Launch the DJI Assistant 2 and congure the parameters.
4Ensure the motor, remote controller channels and Failsafe settings are correct.
5Ensure the devices connected to the ight controller are working normally and correctly set in
DJI Assistant 2.
Preparation
Equipment
Ensure you have a suitable airframe, remote controller system, ESCs and battery to use with the
ight control system. 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.
IY6 Y6
V6 I8V8
X8 IX8
I6
X4I4