# 1 Foxtech D130 X8 Operating Handbook 

# O PERATING HANDBOOK

Foxtech D130 X8 Multirotor

# 2 Foxtech D130 X8 Operating Handbook



# Foxtech D130 X8

TABLE OF CONTENTS

 Section 1: General

 Section 2: Limitations

 Section 3: Emergency Procedures

 Section 4: Normal Procedures

 Section 5: Performance

 Section 6: Weight and Balance/Equip ment List

 Section 7: Air Vehicle and Systems Description

 Section 8: Handling, Service and Maintenance

 Section 9: Supplements

# 3 Foxtech D130 X8 Operating Handbook 

# SECTION 1

GENERAL

The D

- 130 X8 by Foxtech is Multi

- rotor small unmanned aircraft with eight motors. The aircraft has 4 main rotor

arms extending from the center fuselage area. At the ends of the rotor arms are two powerful brushless electric

motors capable of swinging a 28

- inch propeller. The motors are arranged with one pointing up with a puller prop

and one pointing down wi th a pusher prop. The motor configuration allows of the aircraft to be efficient yet as

compact as possible. The aircraft is primarily built from carbon f iber that results in a very stro ng yet light weight

airframe. The arms can also be folded down for transportation and storage.

The autopilot/flight stabilization system is a DJI A2 advanced multi

- rotor controller. This system provides very

precise stabilization to the aircraft along with GPS navigation features . Safety features include; motor failure

recognition and motor failure flight capability allowing for continued safe flight with a motor failure, return home

and land mode for loss of link failure, safe land mode for low battery voltage and loss of GPS signal, and other

warnings to the pilot/ope rator.

The command and control systems is a DJI Lightbridge 2. This system allows of the control of the aircraft via

two joysticks and has a range of 3 km via a 1 watt 2.4ghz radio transmitter and receiver package. This allows for

an extremely reliable signal in a variety of conditions. A signal strength indicator provides the pilot/operator real

time information on the reliability of the signal. Other indictors include battery strength of the aircraft, aircraft

speed and altitude, GPS strength, and ai rcraft location. The DJI Lightbridge 2 also has an integrated 5.8ghz

transmitter and receiver system that allows real time video to be transmitted back to the operator/pilot.

# 4 Foxtech D130 X8 Operating Handbook

 GENERAL CHARACTERISTICS

o Vertical Takeoff and Land

o Quiet and Efficient Electri c Brushless Motors

o Waypoint Navigation and Position Hold Capabilities

o Redundant Flight Systems

o Safety Return to Home during lost link or low battery

o GPS navigation aid

o Various sensors

o 36 lb max takeoff weight

o Operating Temp Range:

- 5°C to +60°C

o Flight Mode s: Manual and GPS aided waypoint navigation

o Maximum Operating Altitude: 2500 feet MSL

o Maximum Operation Wind Condit ions: 30kts

o Propulsion System: Lithium Polymer batteries

o Takeoff: Manual or Automatic

o Landing: Manual or Automatic

o Takeoff/Recovery Area: 5m square

 DIMENSIONS

o Distance rotor to rotor across the center: 47.25 ”

o Height: 29”

 MOTORS

o Manufacturer: T

- Motor

o Number of motors: 8

o Motor Model Number: U8 KV100

o Motor KV/RPM: 100

o Motor max @ 25.2V: 1850 rpm

o Current Max: 164 amps

o Amp Draw Typical Average: 65 amps

 PROPELLERS

o Manufacturer: Foxtech

o Material: Composite

o Number of propellers: 8

o Propeller model: Supreme 2880

o Number of blades: 2

o Propeller Diameter: 28 ”

o Propeller Pitch (fixed): 8 ”

 ELECTRONIC SPEED CONTROLS

o Manufacturer: Foxtech

o Number of speed contr ols: 8

o Spe ed control model: Multipal Waterproof 80A HV

o Rating in amps: 80 Amps continuous

# 5 Foxtech D130 X8 Operating Handbook

 AUTOPILOT /FLIGHT STABILIZATION

o Manufacturer: DJI

- Innovations

o Autopilot Model Number: DJI A2

o Components: GPS/Compass, IMU, Master Controller, Power Distribution Syst em, LED

Indicator Lighting System, Data Transceiver, GCS Software

o Power Consumption: 5W

o Operating Temp Range:

- 5°C to +60°C

o Softwa re Compatible: Windows 7 /Windows 10

o Hovering Accuracy: Vertical : ± 0.5m; Horizontal: ± 2m

 WIRELESS LINKS

o Distributor: DJI

- I nnovations

o Frequencies:

 2.4 Ghz datalink with WiFi

 2.4 Ghz Command & Control

 5.8 Ghz Video

o Power Consumption: 1 watt

o Usable Range: Less than 3 km.

 FLIGHT BATTERY

o Battery che mistry : Lithium Polymer

o Battery Capacity: 2 2,000 mah x 2

o Battery cel l count requir ed: 6S

o Battery Voltage: 21V minimum during hover, 22.2V nominal, 25.2V maximum

o Battery Minimum Charge Rate: 1C

o Battery Rest Time between discharging and charging: 30 minutes recommended

o Batteries used simultaneously: 1

- 2

o Recommended Battery Discharge Amo unt: 80%

 FLIGHT PARAMETERS

o Flight Time: up to 30 minutes

o Payload Max: 11 lbs

# 6 Foxtech D130 X8 Operating Handbook

 WARNINGS

o Never power a video transmitter or receiver without an antenna connected or overload failure

will occur.

o Read all information regarding batteries contained in this man ual and supplements.

o Batteries are highly flammable and can explode, especially when fully charged. Improper

charging, vibration, impact, high discharge, etc. can lead to explosion and fire. Batteries must

be charged under constant supervision and using pr oper precautions.

o Batteries fully charged must be handled with extreme care.

o Batteries must not be stored above 50% charged state.

o Store batteries between 20%

- 50% charged state. Fully charge just before use.

o Fully charged batteries which are not to be us ed within 24 hours should be discharged to 20%

- 50% charged state.

o Discharging LiPoly batteries in excess of 80% of their rated capacity can cause harm to the

batteries.

o Using more than one battery at a time requires the proper wiring harness so that the voltage is

no more than 25.2V. Over voltage will cause serious damage to electrical equipment.

o Using more than one battery at a time requires weight and balance checks. Proper CG is

critical to performance. Airframe must not be overloaded.

o Propellers must be balanced to avoid excessive vibration.

o GPS/Compass must be facing forward.

o Do not use GPS Mode without GPS lock.

o Use low strength thread locking compound on all screws.

# 13 Foxtech D130 X8 Operating Handbook 

# SECTION 2

LIMITATIONS

 AIRSPEED LIMITATIONS

o Vne

– Velocity to Never Exceed: 29kts

o Va

– Typical Cruise Speed

– 10kts

 POWER & POWERPLANT LIMITATIONS

o 8 0 Amps max per motor

o 8 0 Amps max per speed control

o Do not exceed 80

- 90% discharge of rated battery capacity

o Do not charge batteries which are warmer than air temperature

o Allow batteries to cool after use before charging

o Leave an air gap between batteries when multiple batteries are used simultaneously

 WEIGHT LIMITS

o Takeoff Weight Max: 36 lbs

 CENTER OF GRAVITY

o Must be checked before every flight to ensure batteries were installed in the pr oper

location.

 MANEUVER LIMITS

o This aircraft is intended for non

- aerobatic operations

o G

- loading maximum: 2G

 TEMPERATURE LIMITS

o Operating Temp Range:

- 10°C to +40°C

o In cold temperatures

 Keep IMU at room temperature if possible before the flight

 Keep Batte ries above 5°C before flight

 Do not fly with any frost or ice on the propellers

o In warm temperatures

 Batteries heat up when discharged

 The higher the discharge rate the higher the temperature increase during use

 At temperatures above 45°C, use of 2 batteri es is required to lower the load on any

one battery pack to keep it cooler.

 WEATHER LIMITS

o Light dust and light rain require the use of a shield for the electronics in the center section.

o Light dust and light rain are acceptable for the unshielded motor a nd ESC.

o NOT to be used in icing conditions.

# 14 Foxtech D130 X8 Operating Handbook

 WIRELESS LINK

o Wireless links will be stable in LOS (line of sight) conditions

o Wireless links are always susceptible to shorter ranges due to

 Atmospheric conditions

 Other transmission devices in the area

 Jammi ng

 Antennas not aligned properly

 Improper voltage

 Antenna blockage from AV in certain positions

 Multipath

– reflection off buildings or ground which cause multiple signals to arrive

at different times and/or phase.

# 15 Foxtech D130 X8 Operating Handbook 

# SECTION 3

EMERGENCY PROCEDURES

 MOTOR FA ILURE

o Operation is possible with one motor/ESC/propeller failure

 The adjacent motors/ESCs will be increased in thrust automatically by the flight

controller to overcome the loss

 Operation should be terminated as soon as possible to reduce the possibility o f damage

to the remaining motors

 COMMUNICATION FAILURE

o Video link failure

 5.8 Ghz being the shortest wavelength in general AV use has the least ability to

penetrate. This link should be the first to be lost.

 It is best to lose video first! It is the least likely to cause a crash when it fails.

 Ensure that the GCS station antennas are perpendicular to the AV. Do not point the

antenna at the AV.

 Yaw the AV to change the antenna position

 Other links should still be good. Return back to the GCS until link is r estored.

 Transmitters produce heat when in operation. When overheated they may have

thermal protection which interrupts use temporarily. Use of a heat sink or fan may be

required especially with high ambient temperatures.

o RC link failure

 Anything in betwee n the two antennas can cause temporary signal loss especially a

person.

 Hold the transmitter up in the air and walk in the general direction of the AV (aerial

vehicle).

 Ensure that the antenna is vertical. Do not point the antenna at the AV.

 The failsafes on the RC link should be set so that the AV returns to home. Should this

require a heading change, the antenna may move into a more desirable position and

link will be restored.

 The onboard equipment may block the signal. Yaw the AV so that the antennas po int

towards the GCS.

o LOW BATTERY POWER

 Fail

- safes can be set such that in the event of low battery power, either due to a failure

or too long of a flight, the warning light on the AV will constantly flash amber. This is

the first level of warning.

 The sec ond warning level is red flashing lights

 Auto landing will occur when battery power is low. It may land in a tree or a lake, so

this is not desirable.

 Landing with 80

- 90% of battery depleted is best.

 Do not mix partially charged batteries. Only use comple tely charged batteries.

 Over discharging a battery below 19.8V can permanently damage the battery.

# 16 Foxtech D130 X8 Operating Handbook

o GCS FAILURE

 Takeover by the external pilot should happen ASAP using the RC link.

 Most often happens due to a low battery.

o COMPASS CALIBRATION ERROR

 If the compass is out of calibration the warning light will flash red. This is the same

signal as low voltage. If the voltage is correct, there is a calibration error.

 Recalibrate the compass following the instruction manual

o FIRE

 Fires can occur due to a short circuit or battery failure.

 Disconnect the battery ASAP unless there is danger in doing so if there is any

electrical issue.

 Use a fire extinguisher to put out fires surrounding the battery. A CO2 fire

extinguisher is better than the powder or chemical typ e. CO2 does not leave a residue.

Water can be used though it may cause other electrical component failures.

o FORCED LANDINGS

 If alternate emergency landing zones should be chosen ahead of time.

 Be sure that the LZ is clear of people to avoid any incidents.

 Land in the nearest LZ which is clear of people.

 Announce your intentions of landing as loud as necessary to alert people of the

incoming AV.

# 17 Foxtech D130 X8 Operating Handbook 

# SECTION 4

SET UP SUGGESTIONS

 ELECTRONICS BURN IN

o We recommend that you put weights onto the landing skids to ke ep the copter on the ground

and run the copter at about 70% throttle for about 2 hours to burn in the electronics. Most

electronic failures occur in the first 2 hours of operation.

 GPS/COMPASS MAST LENGTH

o We found that the higher the mast, the better the G PS reception

 RADIO SET UP

o Follow the instructions in the manual

o We prefer the switch assignment as shown in the checklists above though feel free to modify

to your liking

 COPTER COMMAND AND CONTROL

o We recommend the use of a dual rate switch for main copter operation.

 High rate

– used to initialize the motors. The flight controller will not engage unless it

sees full down throttle, full left rudder, full left cyclic and full back cyclic. However,

these may be too high for normal flying. On high rate it is he lpful to utilize fairly high

exponential to make the stick feel soft around center. Adjust to your preference.

 Low rate

– used for typical flying. Set the end point adjustments such that full stick

deflection offers the maximum speed required in normal fly ing. If conditions require

higher flight speeds, switch to high rate. On low rate it is also helpful to utilize a small

amount of exponential to make the stick feel soft around center. Adjust to your

preference.

 ZENMUSE COMMAND AND CONTROL

o We recommend the use of a dual rate switch for gimbal operation.

 High rate

– used to initialize the gimbal. The gimbal may not engage unless it sees full

motion. However, these may be too high for shooting video smoothly. This is best for

still photography so as to put th e camera on target quickly. On high rate it is helpful to

utilize fairly high exponential to make the stick feel soft around center. Adjust to your

preference.

 Low rate

– used for videography. Set the end point adjustments such that full stick

deflection o ffers the maximum speed required for videography. If conditions require

higher gimbal speeds, switch to high rate. On low rate it is also helpful to utilize a

small amount of exponential to make the stick feel soft around center. Adjust to your

preference.



#  TIMERS



# o Use of the countdown timer is a good backup method to ensure landing with battery power.

 Set the timer for 20 minutes (or what you deem appropriate) and have it start when the

throttle is over 1⁄4. Then adjust the timer upwards until the amount of ba ttery used is

about 80

- 90% of the total available.

# 18 Foxtech D130 X8 Operating Handbook 

# NORMAL PROCEDURES

 PREFLIGHT CHECKLIST

o Confirm all communication radios are operational

 Radio with ATC

 Radios with others in the group

o Set a perimeter of 100 meters

 Area must be clear of people to avo id collision

o Check for overhead power lines and other obstacles to avoid

o Check structural integrity

 In event of prior crash, inspect all booms, props and motor mounts for excessive flex

indicating structural fatigue/failure

o Have a manual flight plan avoidi ng obstacles.

o Load auto flight plan if using one

 Be sure that the total flight time is under 10 minutes to avoid low battery

o Clean lens

 Remove lens cap

o Ensure camera has SD card installed

 Many flights have been wasted due to this!

o Install batteries

 Ensure that the straps are tight and the Velcro keeps the batteries from moving which

will avoid a shift in the CG (Center of Gravity

– or that it balances evenly)

o Check CG (Center of Gravity)

 Lift the copter on each of the 2 pairs of arms. The copter should bala nce properly. If

not, do not fly. Rearrange the equipment such that the CG is

o IMU pointing forward

 The Inertial Measurement Unit is set so that it must face forward

o GPS/Compass installed, limited free play, pointing forward

 This device must be installed wi th a screw to hold it in place. It cannot vibrate easily.

If it does not point forward, the corrections in ATTI and GPS mode will be incorrect

and it will crash. The FC will provide a warning with constant flashing white lights.

o Level copter using a bubble level with front pointing in correct direction for course lock

– do

not turn on

 Keep in mind the best angle for pointing the landing gear in the direction that will

keep the landing gear out of the shot when flying.

o Turn on Pilot Tx

o Throttle on Tx Down

o Re turn to Home switch Off

o Manual Flight Mode Switch to manual (not ATTI or GPS mode)

o Flight Path Switch Off

– Not Course or Home or POI

o Check Tx battery voltage

 These settings above are required to initialize the copter properly. If the switches are

in the incorrect position, it will not initialize properly which may cause some of the

functions like course lock or GPS mode to not operate properly.

# 19 Foxtech D130 X8 Operating Handbook  If the copter does not function properly after takeoff, land immediately and disconnect

the copter power. Then put all the switches in the proper position for initialization and

turn the power back on to the copter.

o Count down timer should be set to 20 minutes. This can be adjusted to your flying style. The

timer should engage at 1⁄4 throttle and trigger an alarm at the proper time. This is a backup

alarm in case the indicator lights on the copter are not visible.

o Turn on Gimbal Tx

o Check Tx battery voltage

o HDMI switch Off

o Engage power to copter

 Plug in the 2 battery packs

.

 6 quick chirps should be heard confirming 6S LiPoly batteries are recognized by the

ESCs.

 Hearing less than 6 chirps indicates fewer cell battery packs are being

recognized which is incorrect. Check for improper or damaged batteries.

o Do not move or vibrate the aircraft until 30 seconds after full GPS Lock

 Initial 3 red blinks is normal meaning no GPS lock. No red flashes indicates full GPS

lock.

 Continue with checklist as you are waiting for full GPS lock, but do not move the

copter.

 If the GPS takes more than 5 minutes to lock, there is a problem wit h the area. It is not

receiving the proper signals from the satellites. GPS signals are weak, so trees, people,

buildings, terrain, weather, have an effect. Move the copter into a more open area

where it can more easily see the satellites.

o Check Copter Vol tage from both Tx’s (transmitters)

o Engage Attitude Mode

– Must achieve double amber flash

o Engage GPS Mode

– Must achieve double purple flash

o Engage course cock mode

– Must achieve double green flash

o Disengage course lock mode. Must achieve double purple fl ash. Stay in this mode until just

prior to takeoff, after takeoff at any time, or do not use.

o Do not engage motors. Set throttle to center position. Must achieve single purple flash when

in GPS mode.

 To verify that the sticks are all centered properly:

 Wit h throttle in the center position, use the trim buttons on the transmitter to check

that the sticks are centered. Trim the roll (the stick located on the right side of the

transmitter when moved to the right and left) to the right, counting the number of

c licks until a double flash occurs. Then center the trim. Then move the trim to the left,

counting the number of clicks until a double flash occurs. An equal number of clicks

should be counted each side of center.

 Do this check for the 3 stick movements oth er than throttle.

 Center the trim such that when the stick is in the neutral position that there are equal

numbers of clicks in each direction. This ensures that when the sticks are neutralized

that the flight controller will recognize this signal and enga ge GPS mode.

# 20 Foxtech D130 X8 Operating Handbook

o Calibrate GPS/Compass before the first flight each day or if receiving continuous red blinks

or continuous white blinks.

 Flip the GPS mode switch 7 times very quickly from manual to GPS. End with the

switch in the manual position. The indica tor light will be blue. Rotate the copter about

1.5 turns in a horizontal position. A green flashing light indicates that this is complete.

Then hold the copter vertically and rotate about 1.5 turns. A white flashing light

indicates that this is complete. Repeat if necessary until this is completed.

o After calibration, reset the copter by cycling battery with copter pointed in the correct heading

for course lock.

o Engage Camera

o HDMI switch On

 This will stop video from playing on the back of the camera and wil l send the video

signal to the video transmitter via the HDMI connection.

o Freestyle switch On (FPV Off)

 This allows the camera to be operated freely through the transmitter

o Verify camera operation

 Operate the shutter

 Set the focus to auto or manual. Manual setting is usually set to infinity to stop

constant focusing of the camera.

o Verify data link if installed

 Roll the copter about 45 degrees on its side by lifting one side of the copter and resting

one side of the landing gear on the ground

 A corresponding roll should be seen on the gauge.

 If the copter is rolled to the right, it will appear on the gauge that the horizon rolls to

the left

– not the right because the view from inside the copter is that the horizon rolls

the opposite direction of the copter.

o Verify altitude is about 0 via gauge on computer

 If it is not about 0, the altitude settings for the waypoints will be off by this amount.

This could cause the copter to fly at 10 meters or 30 meters if the waypoint is set for

20 meters and the altitude is off by 10 meters one way or another. If the copter thinks

it is at 10 meters when it is on the ground, then it will only rise 10 meters above the

ground to achieve what it believes it to be 20 meters above the ground.

 The altitude can be reset using the g round control software by going to altitude offset.

o Alternate Emergency Landing Sites Established

 NORMAL TAKEOFF

o Confirm clear for takeoff with ATC if required.

o Engage GPS mode

– Double purple flash when the throttle is down.

o Switch to Course Lock flight mode if required. Purple flashes are replaced with green flashes.

Flying in course lock is not required, but helpful in many instances.

o Announce loudly: “CLEAR PROP”

o Move both of the sticks to the bottom left corners to engage the motors. Within 1 second

m ove the throttle up 1/8

– 1/4. The copter should not lift off until about 1⁄2 stick is reached.

o Verify data and video links before lifting off. If anything is not working properly, move the

throttle stick to low to disengage the motors and determine a soluti on.

o If all flight checks are passed, announce loudly: “TAKING OFF”

# 21 Foxtech D130 X8 Operating Handbook

o Advance throttle to about 3/4. Copter must jump off of the ground to avoid one skid coming

up before the other skid, and the skid on the ground getting caught and flipping the copter

over sideways.

o Ascend to 3 meters. Then decrease throttle to 1⁄2 to engage the GPS hold.

o Verify links, GPS, Attitude, etc. Should be single purple flash.

o Verify that the copter is holding position within .5m in all directions.

o Verify camera operation

o Verify cour se lock is operational by rotating 90 degrees and pushing forward on stick.

o Verify copter stability. If unstable, land and reset gains, recalibrate, or retest as necessary.

o Proceed with manual mission or

o For autopilot operation

 Ascend to 10 meters

 Command AVO to proceed with mission.

 Pilot should say “It’s yours”

 Response from AVO “I have it”

o Manual pilot/observer must monitor the informational LED and be ready to take over in

manual mode when necessary.

 White flashes indicates flight controller issue

 Amber flashes indicates low battery

 Red flashes indicate loss of GPS or severe battery condition

 Quick decisions are required when red flashes are indicated

 10 seconds or more of loss of GPS signal will stop waypoint guidance and any

GPS hold and put into manua l mode.

 Red indicator light battery warning requires immediate landing

 POST LANDING

o Record flight time in the log book.

o Note battery power used during the flight. Write this down in the log book.

o ALWAYS disconnect the main power to the AV first, then turn off the transmitter.

o Check motor temperatures by touching them with your fingers. Any motors which are

excessively hot should be further inspected and possibly replaced.

o Check battery temperatures by touching them with your fingers. Battery temperatures s hould

not be hot to the touch. Battery temperatures should be slightly above ambient.

o Inspect all components especially the propellers for wear.

o Note in logbook which batteries were used to calculate life cycle.

# 22 Foxtech D130 X8 Operating Handbook

 AIRCRAFT F LIGHT LOG BOOK

o Keep a log of all flights.

 Date

 Time of Day

 Time in Operation (in hours)

 Battery serial numbers

 Mah used in flight

 Location

 Pilot, Observer, Sensor Operator Names

 Flight Objective

 Remarks

 AIRCRAFT MAINTE NANCE LOG BOOK

o Keep a log of significant inspections, tests, repairs, alterations, equipment changes.

 Date maintenance is performed

 Accumulated hours of operation

 Remarks

 PILOT LOG BOOK

o Keep a log of all flights. Include the following:

 Aircraft flown

 Aircraft serial number

 Date

 Time of Day

 Time in Operation (in hours)

 Loc ation

 Flight Objective

 Remarks

# 23 Foxtech D130 X8 Operating Handbook 

# SECTION 5

PERFORMANCE

 FLIGHT TIMES

o The aircraft is designed to hover at high efficiency. Hovering is much less efficient than

flying on a wing, thus flight times are low compared to fixed wing aircraft.

o All the weight of th e aircraft is supported by power from the batteries. As the batteries are

used in a flight, the amount of power available decreases. Therefore, the power reserve is

constantly decreasing as the battery is being used. Thus loading a rotorcraft above its lim it is

not recommended. While the aircraft may have enough power to lift off initially on a full

charge, the power reserve at partial charge may be too low to allow for maneuvering and will

result in a crash.

o High lateral speeds will add lift to slightly im prove efficiency. The rotors act similar to fixed

wings at higher speeds. This increase in efficiency may be negated by the increased power

consumption of forward flight.

o High winds or gusts decrease efficiency/flight time. The motors work harder to hold p osition.

o As weight increases flight times decrease.

 WIRELESS TRANSMISSION

o Refer to the specific manuals for performance ratings.

o Wireless communications utilized provide acceptable communication for LOS.

o In general:

 LOS is required

 The higher the GCS ante nnas, the better the range

 Any freq. at may have severe degradation due to location to other admitters such as

cell towers

 RSSI (Received Signal Strength Indication) should be monitored for indication of

communication drop out.

# 24 Foxtech D130 X8 Operating Handbook

 CG 

# SECTION 6

WEIGHT AND BALANCE EQUIPMENT LIST

o CG is critical to the efficient operation of any aircraft.

o When components are shifted, the CG will be altered.

o The main components which are moved on a regular basis are the sensors and the batteries.

o The sensors are typically in t he front of the AV, and the batteries are located in the correct

position to offset all the components on the AV.

o The CG must be tested after any change to the components or their placement.

o The CG should be tested by lifting the UV with fingers on the bot tom of the arms. Check both

pairs of arms. The closer the CG is to the centerlines of the arms the more efficient and the

more stable the AV will be.

 WEIGHT

o Weight is critical to the operation of any aircraft

o Weight is especially critical to a rotor wing aircraft. At full throttle the motors have a finite

amount of thrust. All the weight is lifted by the battery power, there is no wing to assist in

providing lift.

o As the batteries are operated, they lose power. At full charge they have about 25v. At 20%

re maining capacity they have about 21v. This is a loss of 8% of the power available which is

significant.

o Do not overload the aircraft or there will not be sufficient reserve power to maneuver at low

battery levels.

# 25 Foxtech D130 X8 Operating Handbook 

# SECTION 7

AIR VEHICLE AND SYSTEMS DESCRIP TION

 BATTERY

o Battery chemistry required: Lithium Polymer

o Battery Capacity: 22,000mah x 2

o Battery cell count required: 6S (6 cells in series)

o Battery Voltage: 21V minimum at hover, 22.2V nominal, 25.2V maximum

o Battery Minimum Rated Discharge Rate: 20C mi nimum

o Batteries used simultaneously: 1

- 2

o Recommended Battery Discharge Amount: 80 %

 WERELESS COMMUNICATIONS

o Never power a video transmitter or receiver without an antenna connected or overload failure

will occur.

o Wireless communications utilized provide ac ceptable communication for LOS.

o In general:

o LOS is required.

o Lower frequencies penetrate objects such as trees better than higher freqs.

o Lower freqs have longer range than high freqs

o Higher freqs can transfer more data than lower freqs

o Higher freqs use sma ller/shorter antennas

o The higher the GCS antennas, the better the range and reception

o Any freq at may have severe degradation due to location to other admitters such as cell towers

o Range must be constantly monitored.

o Alternate antenna types may be utilized to improve link/range. Patch, helical, omni, etc. can

be substituted. They must be verified before use.

o Alternate freqs may be utilized to improve link/range.

# 26 Foxtech D130 X8 Operating Handbook 

# SECTION 8

HANDLING, SERVICE AND MAINTENANCE

 PROPELLER CARE

o Propellers must be checked each fli ght for nicks or cracks

o Propellers are designed to last indefinitely if they do not impact dust, dirt or more.

 BATTERY CARE AND USE

o Batteries are highly flammable and can explode, especially when fully charged. Improper

charging, vibration, impact, high d ischarge, etc. can lead to explosion and fire. Batteries must

be charged under constant supervision and using proper precautions.

o Batteries fully charged must be handled with extreme care.

o Any battery which puffs up is considered damaged and must not be us ed. It is in a dangerous

state. Never charge a puffed up battery.

o Any battery which holds less than 80% of its rated capacity should be discarded.

o Cycle test each battery after every 50 cycles or if a battery is suspected to have lost as significant amount of its capacity to determine the current capacity.

o Properly dispose of batteries. First discharge the battery fully using a battery cycler. Bring to a

recycler such as a home improvement store.

o Always charge flight batteries under “balance” mode.

o Flight B attery Recommended Charge Rate: 1C which takes approximately 1 hour to charge

o Flight Battery Maximum Charge Rate: May exceed 5C. Charge rates higher than 1C will

decrease life cycles. Maximum charge rating per the manufacturer will provide 300+ cycles.

Use the lowest charge rate which is practical.

o Battery Rest Time between discharging and charging: 30 minutes minimum, 1 hour

maximum.

o Do not charge if the battery is more than 2°C warmer than ambient, especially if the

temperature is above 20°C. The outer su rface is cooler than the inner core after use. Damage

will occur when charging a warm battery.

o Recommended Battery Discharge Amount: 80%. Using more of the capacity of the battery

will decrease the life cycles

o As battery temperature approaches freezing the capacity of Lithium Polymer batteries

decrease. Keep warmer than 5°C before installing into the UV (unmanned vehicle).

o Battery capacity decreases at higher discharge rates. Using more batteries decreases the

discharge rate of each battery thereby extendin g individual battery capacity slightly.

o Lower discharge rates improve the life cycles.

o Batteries are rated at greater than 300 life cycles. 1,000+ life cycles are possible.

o Batteries must not be stored above 60% charged state for extended periods.

o Batterie s should be stored below 25°C for extended periods

o Store batteries between 40%

- 60% charged state. Fully charge just before use.

o Fully charged batteries which are not to be used within 24 hours should be discharged to 40%

- 60% charged state using the bat tery discharger.

o Using more than one battery at a time requires the proper wiring harness so that the voltage is

no more than 25.2V. Over voltage will cause serious damage to electrical equipment.

# 27 Foxtech D130 X8 Operating Handbook

 PREVENTATIVE MAINTENANCE

o 100 HOUR INSPECTION and ANNUAL IN SPECTION

 I nspect all components for wear and replace any c omponents as required.

 Check condition and balance of all propellers.

 Test all batteries for capacity.

 Check for firmware and software updates and upgrade to latest revisions

.

 Conduct a proper test flight after any updates to firmware/software.

# 28 Foxtech D130 X8 Operating Handbook 

# SECTION 9

SUPPLEMENTS



# CHECKLISTS

 INVENTORY CHECKLIST

o Aircraft

o Camera with SD card

o Spare parts/tools

o Spare batteries

o Two RC transmitters

o Tablet

o Battery Charger

o Flight Controller Cable

o Video monitor, stand, battery, antennas

o Datalink & cable

o Battery Y

- harness

 INITIAL SET UP & TESTS

o All screws/bolts are tight

o Timer alarm for flight time to not exceed 80% battery capacity set properly

o Batteries are secure

o Antennas are secure

o Props balanced

o Props aligned

o Props not chipped

o Check blades, arms, etc. for cracks/damage



# o Wiring Tight

o No excessive flexing of motors or booms

o Booms/motors will not twist

o Center of gravity is correct

o Warning lights set for low battery if used

o Batteries charged. Replace any battery which cy cles below 80% of rated capacity

 Tablet Battery

 Flight Battery

 Handheld Rx Battery

 RC Tx Battery

 Video Rx Battery

 Spare Laptop Battery

# 29 Foxtech D130 X8 Operating Handbook

 PREFLIGHT CHECKLIST

o Check area to fly on Google maps

o Confirm ATC coms operation as required

o Inform ATC of your flight p lan if required

o Determine emergency flight plan and alternate landing zones avoiding power lines and obstacles

o Check wind direction

o Set a perimeter of 50

- 100 meters

– area must be clear of people

o All antennas installed and all pointing in correct direction s

o Engage GCS Tablet (bring up flight plan)

o Remove lens cap / Clean lens

o Camera On

o Ensure camera has SD card installed.

o Check battery voltage

o Install battery on copter.

o Check CG

o Level copter with front pointing in correct direction for course lock

– do not turn on

o On Copter TX

- Set switches

- Throttle Down, Return to Home switch Off, Manual Flight Mode

Switch On, Flight Path Switch Off

– Not Course or Home Lock

o Copter Transmitter On

o Check Tx battery voltage

o Gimbal Transmitter On

o Check Tx battery voltage

o Pl ug in battery.

o Calibrate GPS/Compass if necessary

o If calibrated, cycle battery with correct heading for course lock.

o Do not touch the Copter until 30 seconds after full GPS Lock. Initial 3 red blinks is normal meaning

no GPS lock. Wait until no flashes. Co ntinue with checklist.

o Check Copter Voltage from GCS

o Engage Attitude Mode

– Must Achieve Double Amber Flash

o Engage GPS Mode

– Must Achieve Double Purple Flash

o While in GPS mode engage “Course Lock” mode. Must achieve green Flash

o Do not engage motors. Set t hrottle to center position. Must achieve single amber flash in Attitude

Mode and single purple flash in GPS mode

o Verify camera operation

o Verify data link if installed

– rolling copter manually should change gauges

o Upload flight plan if needed

o Verify altitu de is about 0 via gauge on computer/GCS/tablet

o Timers set properly

# 30 Foxtech D130 X8 Operating Handbook

 TAKEOFF CHECKLIST

o Declare intentions for takeoff with ATC

o Engage GPS mode

– Double purple flash

o Engage Course Lock mode (double green flash)

o Announce loudly: “CLEAR PROP”

o Position the stic ks in the lower left hand corners, then immediately raise the throttle 2 clicks,

and center the right stick.

o Advance throttle to 1⁄4 power for 5 seconds. Assure all motors are operating.

o Verify that left/right and forward/back stick movement engages the prop er motors

o Verify data and video links are still operational

o Announce loudly: “TAKING OFF”

o Advance throttle to full. Copter must jump off of the ground.

o Ascend to 3 meters. Center throttle stick. Should be single green flash. Verify wireless link,

GPS hold, camera operation, gauges, etc. are working properly.

o Verify course lock is operational by rotating 90 degrees and pushing forward on stick.

o Verify copter stability. If unstable, land and reset gains, recalibrate, or retest as necessary.

o Raise landing gear

o Proceed with manual mission

o For autopilot operation

 Ascend to 10 meters manually

 Engage autopilot

o Manual pilot/observer must monitor the informational LED and be ready to take over in

manual mode when necessary.

o Manual pilot to request copter flight batte ry voltage readout from camera operator

periodically.

 LANDING CHECKLIST

o Landing area clear

o Lower landing gear

o Note obstacles in flightpath

o Announce loudly: “LANDING”

o First cut power to the aircraft

o Note elapsed time of flight

o Adjust any parameters (camera servo speed, exponential, etc)

o Turn power off to transmitters, camera, goggles, monitors, Rxs, etc.

o Touch motors to verify temperatures are similar

o Complete flight log

 Date and time of flight

 Batteries used

 Time of Flight

o Contact ATC

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#  ERROR MESSAGES

o White flashes

 IMU malfunction. Land and determine cause.

Possibilities:

 GPS/Compass not pointing forward

 IMU not pointing forward

 Set up of X, Y, Z for location of IMU and

Compass is incorrect

o Excessive rocking/instability possible causes:

 Weak motor

 Structure flexing from fatigue or cracks

 Motor mount

 Main frame

 Booms

 Loose Bolts causing flexing or misalignment

 Props

 Mounts

 Props out of balance

 Props misaligned

 Excessive wind speeds or gusts

 Excessive Gains

 Excessive motor power. Max motor power

must a little m ore than typical ascent

power.

o Red Flashes (1, 2 or 3 flashes with pauses)

– GPS loss

(3 is more serious). Land if loss lasts for more than 30

seconds. Possible causes:

 Clouds

 Structures

 GPS mal

- function

 GPS too close to electrical components

 GPS vibration

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. 2 

# A2 Flight Control System

User Manual V1.22

May, 2015 Revision

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.

Please regularly check the web page of corresponding products on our website 

## www.dji.com

, 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 so lve during usage, please contact your authorized dealer.

## © 2 0 1 3

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. 3 Content

INTRODUCTION

................................ ................................ ................................ .............. 4

P RODUCT 

## I NTRODUCTION



## ................................ ................................ ................................ ........ 4

I N THE 

## B OX



## ................................ ................................ ................................ ................................ ........ 4

E QUIPMENT 

## P REPARED BY 

## U SERS



## ................................ ................................ .............................. 4

S YSTEM 

## I NTRODUCTION



## ................................ ................................ ................................ .......... 5

S YMBOL 

## I NSTRUCTION



## ................................ ................................ ................................ ............ 5

ASSEMBLY AND CONFIGURATION

................................ ................................ .............. 6

H ARDWARE 

## I NSTALLATION AND 

## C ONNECTION



## ................................ ................................ ...... 6

Mixer Type Supported

................................ ................................ ......................... 6

Hardware Connection Diagram

................................ ................................ .......... 7

Important for Assembly and Connection

................................ ............................ 7

S OFTWARE 

## I NSTALLATION AND 

## C ONFIGURATION



## ................................ ................................ . 15

Installing Driver and Assistant Software

................................ ........................... 15

Configure using Assistant Software on a PC

................................ ..................... 16

Configure the control mode switch

................................ ................................ ... 17

Configuration Ch ecking

................................ ................................ ..................... 19

Tools

................................ ................................ ................................ .............................. 20

C OMPASS 

## C ALIBRATION



## ................................ ................................ ................................ . 22

BASIC FLYING

................................ ................................ ................................ ................ 23

C ONTROL 

## M ODE 

## I NSTRUCTION



## ................................ ................................ ....................... 23

F LYING 

## E NVIRONM ENT 

## R EQUIREMENTS



## ................................ ................................ ............ 25

C HECK 

## L IST BEFORE 

## F LYING



## ................................ ................................ ................................ 25

P OWER ON AND 

## C HECK



## ................................ ................................ ................................ . 26

S TART 

## M OTORS 

## M ETHODS



## ................................ ................................ ............................. 26

B ASIC 

## F LYING 

## T EST



## ................................ ................................ ................................ ....... 28

PROTECTION FUNCTIONS SETTING

................................ ................................ .......... 30

F AIL 

## S AFE



## ................................ ................................ ................................ ......................... 30

L OW 

## V OLTAGE 

## P ROTECTION



## ................................ ................................ ........................... 31

ADVANCED FEATURES

................................ ................................ ................................ .. 33

## © 2 0 1 3

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. 4 IOC (I NTELLIGENT 

## O RIENTATIO N 

## C ONTROL 

## ) FUNCTION



## ................................ ........................ 33

IOC

................................ ................................ ................................ ..................... 33

Cruise Control

................................ ................................ ................................ ... 37

S ERVO 

## G IMBAL FUNCTION



## ................................ ................................ ............................. 39

F LIGHT 

## L IMITS



## ................................ ................................ ................................ ............. 39

Max Height, Radius Limits & Home Fence

................................ ........................ 39

Flight Limits of Special Areas

................................ ................................ ............ 41

Conditions of Flight Limits

................................ ................................ ................. 43

P ARACHUTE 

## F UNCTION



## ................................ ................................ .............................. 44

G EAR FUNCTION



## ................................ ................................ ................................ .......... 44

A TTITUDE 

## C ONTROL 

## W HEN 

## O NE 

## M OTOR 

## O UTPUT 

## F AILS



## ................................ ............................ 45

DJI A SSISTANT 

## A PP 

## U SAGE



## ................................ ................................ ............................ 45

APPENDIX

................................ ................................ ................................ ..................... 48

LED INDICATOR DESCRIPTIONS



## ................................ ................................ ................................ 48

S PECIFICATIONS



## ................................ ................................ ................................ ................... 49

FAQ

................................ ................................ ................................ ................................ ................... 50

U SE WITH OTHER 

## DJI PRODUCTS



## ................................ ................................ ............................. 50

C HANNEL 

## M APPING 

## I NSTRUCTIONS FOR 

## PC A SSISTANT 

## S OFTWARE



## ................................ ................ 54

R ECOMMENDED 

## M APPING FOR 

## F UTABA 

## RC (M ODE 

## 2, A2 V2.4 OR BELOW 

## )

................................ ... 56

R ECOMMENDED 

## M APPING FOR 

## F UTABA 

## RC (M ODE 

## 2, A2 V2.5 AND 

## F UTABA BELOW 

## V5.0)

............. 57

R ECOMMENDED 

## M APPING FOR 

## F UTABA 

## RC (M ODE 

## 2, A2 V2.5 A ND 

## F UTABA 

## V5.0)

........................ 57

R ECOMMENDED 

## M APPING FOR 

## DJI NDJ6 RC (A2 V2.5)

................................ ........................... 58

S ETTINGS OF GAIN VALUES FOR 

## Y OUR 

## R EFERENCE



## ................................ ................................ ....... 58

T HE 

## T RANSMITTER SETUP OF 

## FUTABA

................................ ................................ ....................... 59

GPS SNR F UNCTIONS 

## D ESCRIPTION



## ................................ ................................ ........................ 59

A2 R ECEIVER 

## T YPE 

## D ESCRIPTION



## ................................ ................................ ............................ 61

DISCLAIMER

................................ ................................ ................................ ................. 62

TRADEMARK

................................ ................................ ................................ ................ 62

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# Introduction

Product Introduction

In the Box

Controller Unit

(Built

- in Receiver DR16) PMU(Power Management unit) IMU(Inertia Measurement Unit)

LED

- BT

- I GPS

- COMPASS PRO PLUS Accessories

Micro

- USB Cable (1)

Servo Cables (2)

GPS Bracket

Double side sticky pads.



## Equipment Prepared by Users

Aircraft (Take Quad

- rotor for example:

Red is nose, and Black is rear) Transmitter

(Take Mode2 for example) Others 

## The DJI A2 Multi

- Rotor stabilization controller is a complete flight system for

various multi

- rotor platforms for commercial and industrial aerial photography

.

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 provides a seamless transition for current Ace One, WKM AP professionals.

A2 features includes:

Integrated with high

- precision sensor components and a high

- performance GPS Receiv er.

Utilizes high quality components precisely calibrated with temperature compensation in all gyros and

sensors, industry renowned flight algorithm in autopilot and UAV field.

Designed with built

- in vibration absorption, no extra mount frame or vibration absorption pad is required.

Provide high precision control and high performance handling experience.

Based on the DESST technology, it has a built

- in 16

- channel Receiver, and supports DSM2 satellite receiver.

Optional DJI D

- BUS Adapter can be used with a traditional Receiver.

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. 6 Battery

DJI D

- BUS Adapter

Mobile Dev ice

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. 7 System Introduction

Symbol Instruction

General Symbol

Forbi dden(Important) Cautions Tips Reference

GPS Satellite number Distance TX signal good TX signal lost

Roll to left Roll to right Pitch up Pitch down



## LED Symbol

(N) N=1 N=2 N=3 N=4 N=6 N=20 N= ∝

Meaning One Blink Two Blinks Three Blinks Four Blinks Six Blinks Twenty Blinks Continuous

Blinks

e.g. (3) means three Red blinks.

(

∝ )LED blinks yellow and green alternatively.

( N ) N= ∝

Meaning Continuous Solid on

e.g. ( ∝ ) m eans Continuous Blue Solid on. Advanced functions: IOC, Gimbal, Gear FailSafe and Low

- voltage settings Basic flying test Configure the system usi ng A2 Assistant software. Mount the A2 flight control system on your aircraft finish connection. 

## The A2 flight control system uses the Controller Unit at its core, which is

connected with the IMU, GPS

- COMPASS PRO PLUS

、 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.

Please carry out the following procedures to finish assembly, configuration and flight

testing.

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# 1 Assembly and Configuration

Hardware Installation and Connection

Mixer Type Supported

Following Mixer Types are supported.

Quad

- rotor I Quad

- rotor X He xa

- rotor I

Hexa

- rotor V

Octo

- rotor X Hexa

- rotor IY

Octo

- rotor I Hexa

- rotor Y

Octo

- rotor V Please adhere to “1.1.1 Mixer Type Supported” to choose a mixer type and assemble your aircraft.

Please adhere to both “1.1.2 Hardware Connection Diagram” and “1.1.3 Important for Assembly and

Connection” to install and connect all units on your aircraft. 

## For hardware installation, software configuration and compass calibration

please adhere to the following

sections.

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T h e d i r e c tio n o f t h e a rr o w in d i a g r a m i n d i c a t e s t h e r o t a t i o n d i r e c tio n o f t h e m o to r / p r o p e ll e r

.

For coaxial propellers: Blue propeller is at TOP ; Red propeller is at Bottom

. Otherwise all propellers

are at top.

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. 10 Hardware Connection Diagram

Important for Assembly and Connection

Controller Unit 

## This section describes all device port functions, assembly requirements,

connection requirements and tips

during usage. Al so the linking procedures between the built

- in Receiver DR16 and

your Transmitter. Please read all information below carefully, especially if you are

a first time user. ESC 1#

E SC 2#

ESC 3#

ESC 4#

ESC 5#

ESC 6#

ESC 7#

ESC 8#



### 2S~6S

Battery Important

CAN

- Bus, it provides power supply

and communication. A2 can

automatically identify t he device

connected.

CAN1 and CAN2 ports are working

independent, device connected are

non

- interchangeable

. E.g. IMU and GPS

COMPASS PRO PLUS to CAN1; LED

- BT

- I

to CAN2; PMU to CAN1 or CAN2.



### 90 o

Supply power for all ports on

both sides of controller unit.

Important

Make sure the cable connections

are tight before every flight.

Suitable amo unt of hot melt

adhesive is recommended to use in

the connections to the CAN1 and

CAN2 ports.

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. 11 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.

CAN1 and CAN2 ports are working independently and should connect to different modules.

4 independent and configurable outputs.

It is compatib le with the external Receiver, e.g. DSM2 satellite Receiver.

Use the optional DJI DBUS Adapter to support the traditional receiver.

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. 12 Port Description

Link button of Built

- in receiver

DR16 and transmitter

Connect to ESC

IMU

GPS

- COMPASS PRO PLUS

iOSD MARK II, Z15 from DJI

To PW port of PMU

LED

- BT

- I

2.4G DATA LINK from DJI Indicate the linking status

Multi

- function PWM output channels , can directly give

output signal from the Receiver if mapped to a

Receiver channel *

To parachute

To S

- BUS Receiver

BEC

, Connect to X1 of PMU for voltage detection

To DSM2 satellite Receiver

Antenna

*If the Gimbal function is enabled in Assistant Softw are,

F2/F3 can only be used for gimbal Pitch/Roll control,

which means F2/F3 cannot be mapped to any other

Receiver channel.

*If the Gear function is enabled in Assistant Software,

F1 can only be used for gear switch control, which

means F1 cannot be mappe d to any other Receiver

channel.



### Mounting Requirements:

Install the Controller Unit in the proper position to make sure the ports are accessible. No specified direction is

required.



### Receiver System

The A2 flight control system can use its own built

- in Receiver, and also can support external receivers. Whatever

type of Receiver is used, please make sure that the Receiver and Transmitter is linked correctly before use.



### Built

- in Receiver

During use, you may see the followi ng LED indication, please do the operation according to the table below.

LED Description Operation

( ∝ ) Signal from Transmitter has been detected by the Receiver, but not matched. Link operation required 

## 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 c onnection.

Please carry out the following procedures to finish the Link process, and the

configuration in the A2 Assistant

s o ft w a r e

- > Ba s ic

- > R / C

- > R e c e iv e r Type

. S e l e c t t h e DR16 o p t i o n

.

Place the antennas in an open space under the aircraft, DO NOT blo ck them. Position the heads of

two antennas at a 90

- degree angle. DO NOT bend or wind them.

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. 13 ( ∝ ) No Transmitter signal is received, e.g. the flight control system is powered on

but the Transmitter is powered off. Switch on

( ∝ ) The Receiver a nd Transmitter have been linked to each other successfully. Can work normally

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. 14 0

. 5 m < D i s t a nce < 1 c m

DSM2

satellite

Receiver DSM2

satellite

Receiver Link Procedures

1. Turn on the transmitter, it begins to send signals after 1.5secs.

2.Power on the flight control system, configure the Receiver type as DR16 in

the Assista nt software.

3.Press the LINK button, hold for 2secs, wait until the LED blinks Red

.

4.Release the LINK button, the LED turns Green on after successfully linking.

The DR16 Receiver is compatible with the Futaba trans mitters which have optional FASS MODE MULT,

MLT2 or 7CH. Users can find out more available Futaba transmitters and configuration requirements

refer to the FAQ

- >The Transmitter setup of FUTABA.



### DSM2 Satellite Receivers

Linking procedures

1. Power on the flight control system, the Transmitter should be turned off.

2.Set the Receiver type as DSM2 in the Assistant software.

3.Press and hold the LINK button on the controller unit the LED blinks red and the

indicator s on the Receivers blink too. Then release the LINK button the Receiver will

be ready for linking.

4.Press and hold the linking button on the Transmitter then turn on the Transmitter to

start linking, release the button after the Transmitter is displayed Linked or the

indicators on the Receivers are solid on.

5.The LED on the controller unit will be solid green on after linking successfully. 

## If using DSM2 satellite Receivers, please follow the diagram for connection, set

the Receiver referring to your

R e c e i v e r m a n u a l

, a n d s e l e c t t h e R e c e iv e r t y p e as D S M 2 in t h e A ss is t a n t s o f t w a r e

-

> Ba si c

- > R / C

- > R e c e iv e r Type

.

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Notes for the DSM2 users:

There is no need to enable the FailSafe function in the Transmitter. If the Receive r loses the signal

from the Transmitter, the controller unit will enter into FailSafe automatically, and the aircraft will

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. 10 S

- BUS Receivers

Notes for the S

- BUS u sers:

It is no need to enable the FailSafe function in the Transmitter. Once the Receiver loses the

signals from the Transmitter, the controller unit will enter into FailSafe automatically, and the

aircraft will hover or Go

- home as configurations of the Fa ilSafe in the Assistant software.



### PPM Receivers

PPM PPM

Receiver 

## 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 Assistan t software

- >Basic

-

>R/C

- > Receiver Type

. S.BUS S

- BUS

Receiver 

## If using S

- BUS Receivers 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

.  hover or Go

- home as configure in the FailSafe in the Assistant software.

When using the dual

- mode Transmitter, please set the transmiting mode as DSM2 in SYSTEM SET

 UP

- >FRAME RATE

- >MODE, which should not be DSMX.

Support DSM2 satellite Receivers used with all SPEKTRUM Transmitters, e.g. DX6I DX7S DX8

DX18 etc., as well as JR Transmitters, e.g. DXS9II DXS11.

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Notes for the traditional receiver users:

When usi ng the traditional receiver which doesn’t have endpoint adjustment operations to set

FailSafe in the U channel, the Go

- Home switch is recommended and users can use it to trigger

the FailSafe.

Configure the FailSafe function of your transmitter and receiver according to its instructions,

set the FailSafe position of the Go

- Home switch in the position triggering the FailSafe function.

If it is configured correctly as mentioned above, the FailSafe function will be activated

automatically if the receiver loses the signal from the transmitter.

Users can get more information about the FailSafe function referring to 3.1 FailSafe in this

manual and the help text in the Assistant software. Traditional

Receiver 8

7

6

5

4

3

2

1

Important

When you use a traditional re ceiver, DJI D

- BUS ADAPTER is required. Put the switch to the

“I” stop, and power on the system, the LED should be red on; otherwise, keep the switch at

“I” stop and then power cycle the system.

At the “I”stop, the D

- BUS ADAPTER is converting the PWM signal from traditional receiver

to S

- BUS signal. 

## 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 typ e

as D

- BUS in the Assistant software

- >Basic

- >R/C

- > Receiver Type

.

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. 12 IMU (Inertial Measurement Unit):

Built

- in i nertial sensors, for the measurement of aircraft attitude; built

- in pressure sensor for the detection of

aircraft altitude. Should be connected to the CAN1 port of the Controller Unit, and be mounted according to

the required location and orientation. The IMU has been calibrated before delivery, it should be used under the

specified temperature; otherwise the temperature may have an effect on the IMU performance.

Working environment temperature:

- 5 o C ~60 o C Storage environment temperature:<60 o C

Orientatio n 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 Pointing to Left Pointing to Right

Locati on Requirements:

Fix with

double faced

adhesive tape.

The top side should be facing up. DO NOT mount upside

- down.

DO NOT cover the ventilation holes, keep them unblocked and clean.

Take heat preservation measures i f working in cold weather.

Mount the IMU at a low vibration position and the sides of the IMU should be precisely parallel

to the aircraft body. Based on our experience, there is less vibration near the aircraft’s center

of gravity.

NOT water

- proof or oil

- proof.

Check the double faced adhesive tape regularly to make sure that the IMU is fixed firmly.

There is a CAN

- Bus connector, which can be used to connect to the GPS

- COMPASS PRO PLUS or other DJI

product. Center of

Gravity

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. 13

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. 14 GPS

- COMPASS PRO PLUS

Mounting Procedure:

Use the epoxy resin AB glue to assemble the GPS bracket first. The longest one is recommended.

Mount the bracket on the aircraft first, and then fix the GPS

- COMPASS PRO PLUS on the plate of the

bracket (using the 3M sti cky pads provided).



### Mounting Position:

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 tak e off failure

.

Fly the aircraft in an open space without buildings or trees; otherwise it may have an effect on

the GPS.

The compass is sensitive to magnetic interference, should be far away from electronic devices,

otherwise it may lead to abnormal flying

.

Please always keep the compass module away from magnet fields. Otherwise it may damage

the compass module and lead the aircraft to work abnormally or even be out of control.



### PMU (Power Management Unit) Keep it parallel

to the aircraft

Use the GPS bracket, and

keep it a way from other

electronic equipment 

## GPS

- COMPASS PRO PLUS module has a built

- in GPS and compass. The compass is

used for geomagnetic field

measurement. It should be mounted according to the required location and

orientation. Compass calibration is required before use. DO NOT use and store

the compass in the ferromagnetic material environment.

The arrow is

pointing to the

nose direction

.

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. 15 The PMU provides dual BECs (Battery Eliminator Circuit):

(1) PW port outputs power for the whole Flight Control System with current no more than 2A.

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. 16 Port Description

Working status indicator

Green on is normally working

To negative pole of power

To positive pole of power

CAN

- Bus port PX Port, connect to the X1 port of

Controller Unit

V

- SEN, Output 0V

~ + 3.3V

VCC, Output 3A@5V

GND

Connect to CAN1 or CAN2 port of

Controller Unit, CAN2 is recommended.



### Mounting Requirements:

Choose a ventilated place to mount the PMU for cooling, no mounting orientation requirement.



### LED

- BT

- I

Port Description:

Micro

- USB port : used to

connect to the PC for Assistant

software configuration and

upgrade

Indicator of autopilot system

Antenna of Bluetooth



### Mount ing Requirements:

Mount in a good place to make sure the LED is visible during flying. Antenna of Bluetooth should be unobstructed. 

## The LED

- BT

- I has integ rated LED Indicator, Bluetooth and USB port:

The LED is mainly for flight control system status indication during flying (e.g. Control Mode).

Bluetooth is used for real

- time communication with your mobile device (e.g. iPhone), to realize parameter

config uration on a mobile device. For parameter configuration using a mobile device, it is required to install

the DJI Assistant App on the mobile device. When you mount the LED

- BT

- I, please make sure the side with ANT

LOGO is unsheltered after mounting.

In addi tion, there is a Micro

- USB port, make sure it is mounted for convenient connection. Input voltage range: 7.4V~26V 

## (2) 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 L ED

- BT

- I connection and other DJI

products (e.g. DJI 2.4G Data Link).

Bluetooth status indicator

Normal

Communicating

Abnormal

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. 17 Software Installation and Configuration

Installing Driver and Assistant Software

Installing and running on Windows

Download driver installer and Assistant Software installer in EXE format from the download page of A2

on the DJI website.

Connect the A2 flight control system to a PC via a Micro

- USB cable. The Micro

- USB port of the A2 flight

contro l system is on the LED

- BT

- I module.

Run the driver installer and follow the prompts to finish installation.

Next, run the assistant software installer and follow the prompts to finish installation.

Double click the A2 icon on your Windows desktop to laun ch the software.

The installer in EXE format only supports Windows operating systems (Win XP, Win7, Win8 (32 or 64 bit)).



### Installing and running on Mac OS X 

## Please configure the A2 flight control system in the Assistant Software acco rding

to the following instructions.

Users are required to configure every item within the “Basic” page when

use the A2 flight control system for the first time.

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. 18 Download the Assistant Software installer in DMG format from the download page of A2 on the D JI

website.

Run the installer and follow the prompts to finish installation.

When launching for the first time if use Launchpad to run the A2 Assistant software, Launchpad will not

allow access because the software has not been reviewed by Mac App Stor e.

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.

After the first successful launch, direct launching of the software can be achieved by double

- clicking the

A2 icon in the Finder or using Launchpad.

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. 19

Installer in DMG format supports only Mac OS X 10.9 or above.

Usage of A2 Assistant software on Mac OS X and Windows are exactly the same. The Assistant

software pages appear in other places of this manual are on the Windows for example.



### 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.

Run the assistant software, and follow the built

- in guide to carry out the configuration. Note that you may be asked

to register for first time use.

4 3 2 1

Menu

Setting

Options

Built

- in

Guide



### 1. View 2. Restore &Upgrade 3.Set 4.Check

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. 20 Click “Info” to view

user information

and software

version etc

. Enter “Tools” to restore default

settings. And check whether the

firmware is the latest. Enter “Basic” page.

Set the Aircraft,

Mounting, RC, Gain”

in each tab. Enter “View”

page to check all

basic settings.

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. 21 “ RC

STATUS ”

descript ion Normal: the transmitter and receiver are linked and communicating well.

Disconnect: the A2 Flight Control System is powered on, but the transmitter is powered off.

RC

- LOST: RC signal is lost (e.g. the transmitter is turned off after power on) or the receiver

is sending F/S signals (e.g. the aircraft flies out of the range which transmitter is

controllable).

The firmware version and the Assistant Software version should be matched when using the software

to configure the A2 flight control sys tem, 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.



### Configure the control mode switch

Users should configure the control mode switch in the Assistant so ftware in the following page. Only the control

mode switch has been set correctly, the control mode displayed in the left bottom corner will be the same to the

control mode pointed by the cursor on the channel U.

Configuration steps Exambles

Step 1.

Power on your Transmitter, map a 3

- position

switch on the transmitter to the U channel of

Controller Unit as the control mode switch, of

which two positions are default as Atti. Mode

and GPS Atti. Mode and the third position is

optional, users can set as Atti. Mode or

Manual Mode.

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. 22 Step 2.

Toggle the control mode switch to its three

positions, accordingly the cursor will move to

some control mode.

Step 3.

Power off the Transmitter, the FailSafe will be

enabled and the cur sor will point to any area

out of the control modes.

Step 4.

If all steps above are realized, that indicates the

control mode switch is set successfully.

Important

In step 2, if the cursor doesn ’ t point to the correct control mode area (e.g. the fo llowing figures), that indicates

abnormal control mode switch configuration. 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.

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. 23 Configurati on Checking

*Fig. above for reference only, please adhere to actual GUI.

Check List Description

1 Check the IMU orientation direction.

2 Check the Mixer Type of aircraft.

Make sure the motors are rotating normally, and propeller installation is in correct direction.

3 The Receiver type is correct.

4

、 5 Check the basic and attitude gains.

6 Move the sticks to test whether the cursors moves following the sticks. Toggle the “U” switch to

test the control mode setting.

7

~ 

# ○ 11 Advanced configuration, users can configure it according to their requirements after reading the

manual.



# ○ 12 Check the Ch annel Map between the Transmitter and A2 flight control system.

1 2 7

3 8

9

4 5

10

6 11

12

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. 20 Tools

1 Config

Export or import the tuning parameters and restore the default setting and reset the BTU module.

2 Sensors

Read gyroscope, acceleration and com pass sensor value.

3 IMU Calibration

Calibrate IMU based on the gyroscope and acceleration sensor readings from Assistant. Calibrate is needed, when:

Gyroscope Mod value exceeds 1.5.

Acceleration Mod value below 0.98 or exceeds 1.02. Steps

to follow whe n calibrating IMU:

Go to IMU Calibration section after powering on A2, wait until A2 enters “ Ready ” status.

Click “Calibration”, take note of the following warning message: 1 4

2

3

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. 20 Place the IMU on a stationary and horizontal surface and ensure A2 logo faces up ward.

Click “OK” to proceed.

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. 21 4 Device Information and Connection Status

All devices that connected to the A2 flight controller are highlighted, however, disconnected devices appear grey.

Single click a highlighted device to upgrade its firmware. You can also upgrade all firmware by c licking the

“Upgrade All” button.

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. 22 P o s i t i o n 1 *

Position 3

P o s i t i o n 1

- > 3

- > 1 o n c e 

## 1.3 Compass Calibration

Calibration Cautions

DO NOT calibrate your compass where there is strong magnetic interference, such as magnetite,

car park, and steel reinforcement under the gro und.

DO NOT carry ferromagnetic materials with you during calibration, such as keys or cell phones.

Compass Calibration is very important; otherwise the flight control system cannot work.



## Calibration Procedures

Choose an open space to carry out the follow ing procedures.



### Situations that require recalibration

Situations Descriptions

Compass Data abnormal LED blinks yellow and green ( ∝ ) ).

Flying field altered Flying field has changed over a long distance.

Mechanical al teration The mounting position of GPS

- COMPASS PRO PLUS module changes.

Electronic units such as Controller Unit, CAN

- HUB, battery etc. have been added,

removed, remounted or other alterations.

Mechanical structures of the aircraft has changed

Drifting during flying E v i d en t d r if t s o cc u rr e d in f l i g h t s u c h a s t h e a i r c r a ft d o e s n ’ t f l y st r a ig h t Quickly flip the control

mode switch 360 o Rotate the aircraft

horizontally 360 o Rotate the aircraft

vertically (Nose downward)

Start vertical calibrat ion Control

Mode LED

Succeed Fail P o s i t i o n 1 *

Position 3

P o s i t i o n 1

- > 3

- > 1

F l i p 6

~ 1 0 t i m e s

Re

- calibrate Start

cali

Start horizontal calibration 

## The Compass can assistant the GPS to position the aircraft, which is very

important during flight. As we know, the compass is very sensitive to

electromagnetic interference, which will cause abnormal compass data, and lead to

poor flight performance or even flight failure. Compass Calibration MUST be done

for first time use.

It is recommended to calibrate the compass outdoors after the Controller Unit

finds 7 or more GPS satellites.

Regular calibration enables the compass to keep optimal performance.

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. 23 Attitude errors LED often blinks error indicator when the aircraft turns around.

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. 24 

# 2 Basic flying

Control Mode Instruction

Control Mode GPS ATTI. Mode ATTI. Mode Manual Mode

Command

Linearity YES

Yaw Control the aircraft to rotate in clockwise and counter clockwise direction. Maximum rudder

angular velocity 150°/s

Roll and Pitch Aircraft attitude control; Mid point of stick is for 0 ̊ attitude,

and its endpoint is 35 ̊. M a x

- a n g u l a r v e l o c ity i s 1 5 0 ° / s

.

No attitude angle limit.

Throttle Aircraft height control. Maintain the altitude best above 1

meter from ground when the throttle stick is in mid position. No altitude locking when th e

throttle stick is in mid position.

All Sticks

Released Lock position if GPS signal is

adequate. Only attitude stabilizing.

No position locking. Keep original attitude.

GPS Lost Once GPS signal lost the flight

control system will enter ATTI.

Mo de automatically. Return to

GPS ATT1. Mode after GPS signal

has recovered for 2 seconds. --- ---

IOC Supported CL/HL/POI/BTM CL None

Control Mode

Switch position

- 1 position

- 2 position

- 3

Configurable

Control Mode GPS ATTI. Mode ATTI. Mode * ATTI. Mode * Manual Mode 

## Assign a 3

- position switch of the transmitter as the control mode switch. The

position

- 1 is defaulted as “ GPS ATTI. Mode ” and the position

- 2 is “ ATTI. Mode ”

.

The position

- 3 can be set as “ Manual Mode ” o r “ ATTI. Mode ” in

A2 assistant software. The aircraft performs differently when using different control modes. Please

read the following table to know

the different control modes, which may help you to achieve a more involved flight

experience. Read thi s section before basic flight testing.

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. 25 FailSafe

Protection The flight control system will enter FailSafe

Mode if the Transmitter signal is lost and no

matter if Transmitter signal recovers or not,

system will not exit FailSafe mod e automatically. The flight control system will enter

FailSafe Mode if the Transmitter signal is

lost and the system will exit FailSafe once

the signal recovers.

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. 26 GPS Involved YES NO

Low

- voltage

Protection LED alert with Descending or Go Home &

Landing p recautions Only LED alert

Environment

recommended Open flying field;

Good GPS signal Narrow Space;

GPS signal bad Regain control in emergency

The difference between ATTI. Mode of position

- 2 and ATTI. Mode of position

- 3 is that they are working differe ntly

in protection situations.

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. 27 Flying Environment Requirements

Before use of the product, please accept some flight training (Using a simulator to practice flying,

getting instruction from a professional person, etc.).

DO NOT fly in bad we ather, such as rain or wind (more than moderate breeze) or fog.

The flying field should be open without tall buildings or other obstacles; the buildings of steel

structure will interfere with the compass.

Keep the aircraft away from obstacles, crowds, pow er lines, trees, lakes and rivers etc.

Try to avoid interference between the remote control Transmitter and other wireless equipment.

(No base station or cell tower around)

T h e f l ig h t c o n t r o l s yst e m c a n ’ t wo r k a t t h e S o u th P o l e a n d t h e No r th P o l e

.

All par ts must be kept out of the reach of children to avoid CHOKE HAZARD; if a child

accidentally swallows any part you should immediately seek medical assistance.



## Check List before Flying

Double check the following list, otherwise, if any one of the followi ng items is wrong it may lead to flight accident.

All parts are in good condition, no ageing or damaged components

Motor rotating direction

Propeller mounting direction

Mixer Type set in assistant software

IMU and GPS

- COMPASS PRO PLUS mount ing direction

Transmitter channel mapping and sticks movement direction correct

Compass calibration

ESC connection

IMU and GPS

- COMPASS PRO PLUS firmly mounted

In addition, check the following items to make sure the system can work.

The Transmitte r battery is fully charged.

The aircraft battery is fully charged.

Do not over load the aircraft.

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. 28 Power on and Check

Control mode LED indicator

Power on the Transmitter then the flight control system. Toggle the control mode switch to different posit ions.

Control Mode LED indicator

Control Mode

Switch GPS ATTI. Mode ATTI. Mode Manual Mode

LED (Stick not in midpoint (2)) (Stick not in (2)) No LED indicator

Set Put the Control Mode switch to GPS position for basic flying test.

Note: whe n the GPS signal LED indicator is bad or worst (2) or (3)) and lasts for more

than 3secs, the flight control system will enter into ATTI. Mode.

GPS signal LED indicator

GPS signal indication blinks after every Control mode indication. We suggest flyi ng when GPS satellites are more

than 5.



## Start Motors Methods

CSC (Combination sticks commands) is used to start motors instead of just pushing the throttle stick. One of the

following methods can be used to start/stop motors.

Under the conditions stated below, the motors will stop in ATTI. Mode/GPS ATTI. Mode:

The throttle sticks is under 10% for more than 3secs after m otors start.

The throttle sticks is under 10% for more than 3secs after landing.

The throttle sticks is under 10% for more than 3secs and the inclined angle of aircraft exceeds

70°

。 CSC 4 CSC 3 CSC 2 CSC 1 GPS signal LED indicator

Worst ( < 5) : (3) Bad (

= 5) : (2) Well (

= 6) : (1) Best ( > 6) : No indicator

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. 29 If motors fail to start, please refer to the following list for tr ouble shooting.

(1) The Controller Unit fails to obtain the firmware version of IMU and GPS, please check the

connection or upgrade the IMU and GPS.

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. 30 The firmware version of IMU and Controller Unit is mismatched; please upgrade the firmware of IMU or

Controller Unit.

The firmware version of GPS and Controller Unit is mismatched; please upgrade the firmware of GPS or

Controller Unit.

The transmitter calibration has exited abnormally, please recalibrate.

The transmitter calibration results with big bias, please recalibrate.

The transmitter calibration results with big mid point bias, please recalibr ate.

Incorrect channel mappings, please make sure the basic channels A/E/T/R/U are mapped correctly.

Invalid SN or SN error; please contact your dealer or DJI custom service.

The Controller Unit is locked, please unlock the Controller Unit and reconfigur e all the parameters in the

Assistant software.

IMU disconnected, please check the connection.

Compass data abnormal, please eliminate magnetic interference and recalibrate the compass.

When Flight limit function is enabled, if the aircraft fly out of th e max

- radius in ATTI. mode and the motors are

stalling, the motors will fail to spool up in GPS ATTI. mode cause the Flight limit function works.

The attitude status is bad and the LED indicator blinks white, the motors will fail to spool up.

The Transmit ter disconnected, the motors will fail to spool up.

The A2 flight control system is connecting and communicating with the Assistant software, the motors will fail

to spool up.

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. 31 3.Operate sticks to control t he flying attitude of the aircraft during flight

Transmitter (Mode2) Aircraft Operations 

## Basic Flying Test

Carry out the following procedures to complete the bas ic flight test.



### 1. Wait the GPS signal to be well LED

Place the aircraft away from you and others at least 3 meters and wait the ≥6

(about 30 seconds). or no Red LED



### 2. Start motors and takeoff aircraft. LED

Execute CSC to start motors; all sticks back to midpoint as soon as motors start, then push

the throttle stick to take off the aircraft, mea nwhile the home point is recorded. NOTE:

36secs after power on; 10secs after ≥ 6; Motors have been started, auto

- record the

position as home point at the first time the throttle stick is raised 

### (

∝ 

### )

After the home point is recorded successfully and the distance from aircraft is less than 8m,

LED indicator will blink 6 violet continually. Note: only when GPS signal is good (no Red

LED) LED indicator will blink 6 violet continually. 

### ( 6 

### )

Throttle

Stick Push Throttle sticks to control the a ircraft

to elevate and descend. The aircraft can

lock to an altitude when the throttle stick

is at midpoint.

Yaw Stick Push the yaw stick to rotate the aircraft in

clockwise or counter cloc kwise direction.

Roll Stick Push roll stick to control the aircraft left

or right, pitch stick to control forward or

backward.

When both roll and pitch sticks are at

midpoint :

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. 32 Pitch

Stick GPS ATTI. Mode : the aircraft will

be stabilized and locked in

horizontal position.

ATTI. Mode: the aircraft will be

stabilized but unlocked in

horizontal position.

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. 33 4.Hover

In GPS ATT I. Mode

, the aircraft will hover when the throttle/yaw/roll/pitch sticks are all released at mid

- point.



### 5.Landing

Use the throttle stick to control the landing speed, try to land your aircraft gently to avoid shock or crash.

P lease refer to the next section “Protection Functions Setting” to take precautions.

Low voltage alert: yellow quick flashes or red quick flashes.

FailSafe: LED indicator blinks blue.

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.

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. 30 

# 3 Protection Functions Set ting

FailSafe

TX

signal Descriptions

Home

Point

(HP)

≥

6 Home point will be recorded:

After 30 seconds of strong GPS signal

10 seconds later after green LEDs have stopp ed blinking, when throttle sticks are

moved away from mid point.

FailSafe Customize the failsafe to define what happens if remote control signal is lost. Choose

from either auto hovering, RTH or "RTH at a preset altitude in the A2 Assistant"

O ne

- Key

Go Home A switch can be set to trigger RTH without signal loss. If One

- Key RTH is enabled

during flight, aircraft control will cease and LED lights will indicate Control Mode.

Release the RTH switch to regain control. If the Failsafe has b een triggered the

switch will not work.

With One

- Key RTH in progress, aircraft orientation can be controlled while the

aircraft returns.



### FailSafe and Go Home procedures



## 3 Transmitter Signal Lost

LED (∝)



## 6 Landing after Hovering 15secs

LED (∝) 

## 2 Confirm Home Point

≥7

LED (6)



## 5 Go Home( 20m can be customized )

Height over HP>20m

20m Elevate to 20m

Height over HP<=20m

LED (∝) <8m 

## 1 Record Home Point (HP)

LED (∝)



## 4 Signal Lost Lasts 3secs.

LED (∝) 

## FailSafe works when the Transmitter (TX) signal is lost, the flight control syste m

will automatically control the

aircraft to reduce injuries or damage. Set protection in the Assistant software

- >Advanced page. FailSafe and Low voltage

protections are required.

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. 30

The aircraft will not go home (only attitude stabilizing) in the condition <6 or GPS is not

working, even if Transmitter signal is lost or Go Home switch is triggered.

It is recommended to set the Go Home switch in the Assistant software. U sers are suggested to

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. 31 How to regain control in FailSafe

3

- position

Switch Position

- 1 Position

- 2 Position

- 3

GPS ATTI. Mode ATTI. Mode ATTI. Mode Manual Mode

Regain control You have to toggle the control mode s witch

once to regain control if the signal recovers. Regain control as soon as signal recovers.



## Low Voltage Protection

Protections Option Selected Conditions LED Aircraft

First level LED

---- ( ∝ ) None

GH & Landing Make sure the home point is recorded and

no obstacles in going home and landing path. ( ∝ ) Go

- Home & Landing

Second

level LED

---- ( ∝ ) None

Descending

---- ( ∝ ) Descending directly



### Go

- Home & Landing Usage Tips

Descending Usage Tips (1) The home point recorded is the same in both FailSafe and Low voltage protection. The aircraft will not go

home in the fo llowing cases :

a) Control mode switch is at the position

- 3 (Manual Mode or ATTI. Mode)

b)

c) GPS signal is bad ( <6)

The distance between aircraft and the home point is less than 25m, and the height over the Home

point less than 2 0m. 

## Low voltage protection is used to alert low battery voltage during flight; in this

case, users should promptly fly back the aircraft and land to avoid unexpected

damages.

To use this function please set in Assistant software

- >Advanced

- >Voltage page to

configure two voltage levels. enter FailSafe and go home by using the Go Home switch rather than

turning off the Transmitter in emergency situations.

(3) Make sure there are no obstacles during aircraft go home and users are

familiar with the methods

to regain control.

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. 32 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.

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. 33

Please pay attention to the LED alert of low voltage and make sure the power is enough for go

home and landing. Insufficient power reserve will cause the aircraft to crash as well as other

consequences.

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.

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. 34 

# 4 Advanced Features

IOC (Intelligent Orientation Control) function

4.1.1IOC

IOC Help users to set the Flying direction; Should be enabled in As sistant software.

Flying direction The flying direction of aircraft when pushing the Roll and Pitch sticks.

Forward direction The flying direction of aircraft when the pitch stick is pushed forward.

Normal flying IOC is disabled. Forward direction i s pointing to the nose direction and changes

along with the nose.

CL(course lock)

mode Its forward direction is pointing to the nose direction when recording, which is

fixed until you re

- record it or exit from CL.

HL (home lock) mode Record a Home Po int (HP), push Pitch stick to control the aircraft far from or

near to the HP.

POI mode Point of Interest. Record a point of interest (POI), the aircraft can circle around

the POI, and the nose always points to the POI.

BTM (Banked Turn)

mode In th is mode, the roll and yaw sticks are combined to help you perform banked

turns with only one hand.



### Conditions of IOC function

Flying IOC

Setting Control Mode GPS

- COMPASS

PRO PLUS

Required GPS Satellites Distance Limits

Normal

---- ---- ---- B asic to control mode None

CL Enabled Not Manual Mode Compass None None

HL Enabled GPS ATTI. Mode GPS ≥ 6 A i r c r a f t ≥ 1 0 m H P

POI Enabled GPS ATTI. Mode GPS ≥ 6 Aircraft 5m~500m POI

BTM Enabled GPS ATTI. Mode GPS ≥ 6 None



### Step 1 IOC switch setti ng 

## The advanced features of A2 include IOC (intelligent orientation control), gimbal

control, parachute activation

and so on. It also enable users to tweak the A2 configuration via the A2

Assistant wirelessly through the Bluetooth connection.

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. 35 Please enable the IOC function in Advanced

- >IOC page of Assistant software. Then choose a 3

- positon switch on

the Transmitter to set as IOC switch, which is used to select the different IOC modes and manually record the

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. 36 Forward direction, HP and POI recording.

There are six types of IOC switch setting. Below are the three recommended options of IOC switch setting which

may be configured in the Assistant software.



### Step 

## 2 Forward Direction, HP and POI Recording

After you enable the IOC in ass istant software, the flight control system will record the forward direction and home

point automatically after power on, if the recording conditions are met. You can manually re

- record the forward

direction, home point and POI during flying. Note that no BTM recording is required. Read the following table for

the recording method details.

A B C

Forward

direction Forward

direction Forward

direction Switch positions A B C

1 OFF OFF OFF

2 CL CL CL

3 HL POI BTM

CL HL POI

Recorded

Orientation Aircraft’s nose as forward

direction Home point The position that the user

wish to fly around.

Conditions 36 secs after power on 10secs later after ≥ 6;

Motors have been started. 1 0 s e c s l a t e r a ft e r ≥ 6

.

Automatically Automatically record at 36

secs after power on Automatically record at the first

time you push the throttle stick No Automatic record method

Manual According to any option of IOC switch setting, quickly toggle the switch between adjacent

positions 3

- 5 times to record manually.

2 A B C

3 HP POI None

Successful (20) (20) (20)

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. 37

DO NOT toggle the switch between the position 1 and 3 frequently, which may re

- record the

position 2.

The new Home Point and Forward Direction can be set only after one has already been recorded

automatically.

HP is not only used in IOC, but also in FailSafe and Low voltage as go home and landing

destin ation. The flight control system will automatically record the HP even if IOC function is

disabled in Assistant software but Forward direction and POI can be recorded only after IOC is

enabled.

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. 38 HP POI Flying direction Forward direction Route Auxiliary line 

### Step 

## 3 CL, HL and POI 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)

Flying IOC

switch Record Pitch stick control of aircraft Roll stick control of aircraft

Normal OFF None

CL CL

HL HL

POI POI

DO NOT toggle the IOC switch frequently in HL flying to avoid re

- recording the HP unwittingly.

IOC function is available only when all the required co nditions are satisfied. If any condition is omitted

the flight control system will exit IOC. Please keep an eye on the LED to know the current control mode. Once the Home Point is recorded successfully, LED will blink (6) continually under the following

conditions. All conditions must be true.

1. ≥6.

Distance between aircraft and the recorded home point is less than 8m.

Current control mode is in GPS ATTI

. Mode or ATTI. Mode of switch position

- 2.

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. 39 (1) It is recommended to start the HL flight when the aircraft is >10m away from the HP. If starting

the HL when the distance between aircraft and HP is less than 10m and it ’ s the first time you

start HL after power on, then the flight control system will only enter HL after flying out of the

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. 40 Step 4 Banked Turn mo de flying test

Banked Turn Mode is useful when you want to perform banked turns one handed. It allows you to pitch and roll to

turn without using the yaw stick.

Application examples:

Normal and FPV aerial photography in this mode is smooth and simple, giv ing a different visual feel to your

work.

In this mode, the roll and yaw sticks are combined to help you perform banked turns with only one hand.

Setting steps (Mode 2):

To enable Banked Turn Mode, replace the POI gear of the IOC switch with Banked Tur n gear.

With Banked Turn Mode activated, you can circle the aircraft with just one stick. To do this, Mode 2 (throttle

on the left stick) users should select the “Use Roll” option while Mode 1 (throttle on the right stick) users

should select the “Use Ya w” option.

10m range. When in Home Lock m ode, the aircraft cannot enter any area within a 10 meter radius

of the Home Point.

(2) During HL flying if one of the following conditions occur, the flight control system will exit HL and

enter into CL: the control mode is changed to ATTI. Mode; <6(LED 

### ( 2 

### ) or 

### ( 3 

### ) ).

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. 41 Using Banked Turn Mode (Mode 2):

Select “Use Roll” to disable the yaw stick or select “Use Yaw” to disable the roll stick.

Push pitch stick to move the aircraft forward or backward.

After that, Push roll stick left or right to perform banked turn as the following diagram shown. No yaw stick

required.

When the aircraft is hovering, yaw is controlled by the roll stick instead.

5. Rapidly pull the pitch stick to the mid

- point to stop the aircraft.

Flying IOC

switch Record Pitch stick Ro ll stick Pitch stick Roll stick Pitch stick Roll stick Pitch stick Roll stick

BTM BTM None

Banked Turn Mode works only with GPS

- AT TI mode (GPS ≥6). The aircraft will stop and hover when

less than 6 satellites are found.

Once the aircraft performs side slip, adjust the drift damping value. Note that too big value may lead

to aircraft vibration.



### 4.1.2 Cruise Control

Cruise Control a llows you to lock the speed of the aircraft, freeing you to control the gimbal while maintaining

flight.

Application examples:

By maintaining steady flight, you can focus more on your shots and gimbal control, and your total flight time is

increased by el iminating unnecessary speed changes.

Activate Cruise Control to lock your aircraft into its current horizontal speed when you release the control

sticks.

Cruise Control only works when IOC has been enabled. Tick the Cruise Control box in the A2 Assistant to enable it.

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. 42 Assign a 3

- gear switch on the remote control for Cruise Control. Follow the steps below to use Cruise Control.

Use the control sticks to accelerate the aircraft to your target speed then toggle the assigned Cruise Control switch

to “ Set ” or “ Continues ”.

The action of three different gears of the cruise speed is defined as follow:



### Close

Deactivate Cruise Control.



### Set

Move the switch to this position in flight to “ Set ” the cruising speed. The speed at the point that the switch is

toggled w ill be maintained. If you use the control sticks to adjust aircraft speed, the aircraft will return to its

original speed once the control sticks return to center.



### Continues

In this position the aircraft will maintain its speed of flight however if you ac celerate or slow down, it will

continue flying at the new speed once the control sticks return to center.

Cruise Control o nly works in GPS

- ATTI mode (GPS > 6).

The aircraft will exit Cruise Control mode and hover at its current altitude when less than 6 GPS satellites

are detected, switches to ATTI. mode or enters auto go home mode. To enter“Set” and “Continue”

modes, you mu st first go into “OFF” mode.

Cruise Control is disabled during Banked Turn mode flying.

M a x i m u m s p ee d i s 1 5 m /

s u n d e r C r u ise C o n t r o l m o d e

.

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. 43 Servo Gimbal function

Pitch



## Flight Limits

All unmanned aerial vehicle (UAV) operators should abide by all regulations from such organizations as the ICAO

(International Civil Aviation Organization) and their own national airspace regulations. For safety reasons, the flight

limits function is enabled by default to help users use this product safely and legally. The flight limits function

includes height, distance limits and safety zone.

In Ready to Fly mode, height, distance limits and No Fly Zones work together to manage flight. In Ready to Fly

(non

- GPS) status, only height limits applies and flights cannot g o higher than 120m.

Default parameters in Assistant Software are compliant within the definitions of class G ruled by ICAO.

(Refer to Airspace Classification to get more details). As each country has its own rules, make sure to

configure these parameters to comply with these rules before flying

.



### Max Height, Radius Limits & Home Fence

The Max Height & Radius restricts the flying height and distance. Configuration can be done in the A2 A ssistant.

Once complete, your aircraft will fly in a restricted cylinder. 

## Connect the servos of your gimbal to the Co ntroller Unit as the fig. below

, roll

servo connects to F3 port and pitch servo connects to F2, and configure in

Advanced

- >Gimbal page in the Assistant software. No Receiver

channel is asked to be mapped for the F2 or F3 port if gimbal function is

enabled i n the Assistant Software. Note: Even you map Receiver channels to F3

and F2 (Which are shown as D3 and D2 in the Assistant Software

- > Channel Mapping), the F3 and F2 will not give output signals from the mapped

Receiver channels. F2

Roll

F3

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. 40 Max

Height Max

Radius

Home Point

Height of

aircraft when

powered on

GPS ATTI mode

Limits Ground Station Tips

Max Height Flight height must be under the set heig ht. Warning: Height limit reached.

Max Radius Flight distance must be within the max radius. Warning: Distance limit reached.

ATTI mode

Flight Limits Ground Station Tips

Max Height F l ig h t he ig h t r e st r i c t e d t o 1 2 0 m a n d u n d e r

. Warning: Height limit rea ched.

Max Radius No limits

If you fly out of the limit, you can still control the aircraft, but cannot fly it further.

If the aircraft flies out of the max radius in ATTI mode, it will fly back within range automatically.

Home fence is a safety fe ature that prevents the aircraft from coming in too close to an operator. When enabled,

the aircraft will not be able to enter a safe area defined by the user.

Application examples:

Supply safe guard for new users in case of damage from wrong operation.

Keep users safe when aircraft flies close in a high speed.

The safety radius can be set in the A2 Assistant as shown below:

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. 41 Assign a switch on the remote control to turn the home fence feature on and off. The safety radius range can

be set between 1 2m and 100m.

Home fence feature works only with GPS

- ATTI mode. NO home fence limit for ATTI mode and

navigation mode.

Failsafe procedure overrides the home fencing feature.



### Flight Limits of Special Areas

Restricted areas include airports worldwid e. All restricted areas are listed on the DJI official website at

http://www.dji.com/fly

- safe/category

- mc

. Restricted areas are divided into category A and category B. Category A

areas cover major international airport such as LAX and Heathrow, while category B areas includes smaller airports.

Category A Safety Zone

The category A “safety zone” is comprised of a small “no

- fly zone” and a range of “restricted

- altitude zones”.

Flight is prevented in t he “no

- fly zone” but can continue with height restrictions in the restricted

- altitude zone.

1.5 miles (2.4 km) around a designated safety zone is a no

- fly zone, inside which takeoff is prevented.

1.5 miles (2.4 km) to 5 miles (8 km) around restricted area s are altitude restricted, with maximum altitude going

from 35 feet (10.5 m) at 1.5 miles (2.4 km) to 400 feet (120 m) at 5 miles (8 km).

A “warning zone” has been set around the safety zone. When you fly within 320 feet (100m) of the safety zone, a

warnin g message will appear on the DJI Ground Station.

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. 42 Category A

Category B Safety Zone

Category B “safety zone” is comprised of a “no

- fly zone” and a “warning zone”.

0.6 miles (1 km) around the safety zone is a designated “no

- fly zone”.

A “warning zon e” has been set around the safety zone. When you fly within 0.6 miles (1Km) of this zone, a warning

will appear on the DJI Ground Station.

Category B

GPS ATTI mode

Zone Restriction Rear LED Flight Indicator

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. 43 No

- fly Zone Motors will not start.

If the aircraft enters the restricted area in ATTI mode but

GPS ATTI mode activates, the aircraft will automatically

descend to land then stop its motors after landing. Blink red quickly and continue

for 3 seconds before normal

blinks.

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. 44 Restricted

- altitude

flight zone If the aircraft enters a restricted area in ATTI mode and

GPS ATTI mode activates, it will descend to a safe altitude

and hover 15 feet below the safe altitude. Blink yellow quickly and

continue for 3 seconds before

normal blinks. Warn ing zone

No flight restriction applies, but there will be warning

message.

Free zone

No restrictions. None.

Semi

- automatic descent: All stick commands are available except the throttle stick command during

the descent and landing proce ss. Motors will stop automatically after landing. Users must toggle the S1

switch to regain control. This is the same as regaining control during Failsafe. Please refer to regain

control during failsafe procedure.

When flying in the No

- fly Zone , LED flight indicators will blink red quickly and continue for 3

seconds, then switch to indicate current flying status and continue for 5 seconds at which point

it will switch back to red blinking.

When flying in the Restricted

- altitude flight zone and W arning zone, LED flight indicators will

blink yellow quickly and continue for 3 seconds, then switch to indicate current flying status and

continue for 5 seconds at which point it will switch back to red blinking.

For safety reasons, please do not fly clos e to airports, highways, railway stations, railway lines,

city centers and other special areas. Try to ensure the aircraft is visible.



### Conditions of Flight Limits

In different working modes and flight modes, flight limits will differ according to number of GPS satellites found.

The following table demonstrates all the cases( √ : available; × :unavailable).

All flights are restricted by height, distance and special areas simultaneously. The Failsafe and Ground Station

operations are not restricted to flight limits, but if Ground Station function is used, the flight will be restri cted the

special area limits built in to Ground Station. Refer to the Ground Station manual for details.

Control Mode number of GPS found Limits of Special Area Max Height Max Radius

GPS ≥ 6 √ √ √

< 6 × √ ×

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. 45 ATTI. ≥ 6 √ √ ×

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. 46 < 6 × √ ×

Manual ≥ 6 × × ×

Flight Limits can be disabled in the Assistant as below.

Users cannot take off the aircraft in some Special Areas even the Flight Limits is disabled in the

Assistant.



## Parachute Function

The A2 now supports the DJI Dropsafe parachute system which can be enabled in the A2 Assistant. The X3 and F4

ports should be connected. There are two methods to deploy the parachute.

Motors will automatically stop and the parachute will deploy by using switch on the remote control.

In the event of an emergency ( aircraft descends faster than 10 m/s), motors will automatically stop and the

parachute will deploy.

Parachute will deploy once the aircraft descends faster than 10 m/s in manual mode.

Once parachute function enabled, motors will automatically stop a nd the parachute will deploy.

Refer to DJI Dropsafe user manual for more details.



## Gear function

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. 47 Once enable the Intelligent Ge ar function, the gear is default down on the ground

or in case of emergency (e.g.

motor failure tolerance, auto landing); you can control it to be up or down by a

switch when the aircraft altitude

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. 48

Make sure to enable and configure the Intelligent Gear function in the Assistant softw are first,

and then connect the gear to the F1 port.

The Gear channel is required to be mapped with a channel on Receiver if the Intelligent Gear

function is enabled in Assistant Software, and the F1 port will give outputs for retracting control.

Once you map the Gear channel, F1 port will give output signals from the controller for retract

control. Otherwise, even the Intelligent Gear function is enabled; F1 will give output from D1 (it’s

necessary to map the D1 channel with a channel on Receiver as your d emands).



## Attitude Control When One Motor Output Fails

Select Course lock or home lock mode for flying the aircraft into a safe area to land when the aircraft is

far away or the attitude can’ t be recognized.



## DJI Assistant App Usage

Bluetooth status indicator

Normal

Communicating

Abnormal

Antenna of Bluetooth 

## There is a built

- in Bluetooth in the A2 LED

- BT

- I module. With a DJI Assistant

App installed on your mobile

device, remote parame ter configuration can be obtained via Bluetooth

communication between the A2 Flight Control System and the mobile device. 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. is above 5m during flight.

Please configure in the Advanced

- >Gear page in the Assistant software.

Connect the landing gear of S800 EVO to the Controller Unit as fig. below.

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. 49 Supported iOS devices

Required versions of DJI Assistant A pp & Firmware

Specifications

Bluetooth version 4.0 Environment temperature

- 10 °C ~+50 °C

Communication distance 50m Consumption 240mw(0.04A@6V)



### DJI Assistant App Usage

Step 1 Download and installation

1. Search the DJI Assist ant in App store on mobile device and install it.

Step 2 Connect the A2 Controller Unit and the DJI Assistant App

Prepare an iOS device supported 4.0 Bluetooth, and then enable the Bluetooth function on the mobile

device.

Power on the transmitter and th e A2 Flight Control System, make sure the Bluetooth Status Indicator is

solid Red

.

Run the DJI Assistant App. You may be asked to register through internet when first login (the account of

PC Assistant software is OK for login); follow the tips to set Ma in Controller name and password.

Observe the indicators on the left bottom of the software. ( connection indicator and

communication indicator) On the DJI Assistant App, if the communication indicator , please double

check the connections an d driver installation; otherwise if the indicator is

, go to next step.

Select the “Basic” option. Please follow step

- by

- step for your first

- time

- configuration. Basic configuration

is necessary. Click the icon to get the configuration details.

You can c lick the “Advanced” option for more parameter settings. Advanced setting is optional. There are

Motor, F/S, IOC, Gimbal, Voltage, Limits, Gear, etc.

Check all parameters in the View page.

Select “More” to obtain more details. Including: Restore MC defaul t settings, Accounts, Main Controller

List, Information, wiki, Rate DJI Assistant, FAQ, Feedback, About. 

## 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. iPhone 4s, iPhone 5, iPhone 5s, iPod Touch 5, iPad 3, iPad 4, iPad air, iPad mini,

iOS6.1 or above is required. Bluetooth version is required to be 4.0 or above.

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1. Make sure to upgrade the LED

- BT

- I module to the latest firmware via the PC Assistant software

on a PC before you use the DJI Assistant App with the A2 Flight Control System.

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. 51 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.

The “View” page shows the relative parameters real

- time when flying.

Go to the “Basic” and click into the “Gain” page to set the values of all gains real

- time during flying.

Go to the “Basic” and click into the “Tool” page to view the values of IMU & C ompass real

- time during

flying.

Finish the flying and land your aircraft.

Only the parameter referred above can be changed during flying. Others can be configured after

landing. 2.

3. Every time you run the DJI Assistant App, the App will search the Controller Unit automatically.

The gain value displayed on Mobile Device and PC may be a littl e different, that is OK for use.

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. 52 

# Appendix

LED indicator descriptions

Control mode GPS sign al

Manual Mode: No indicator Best > 6): No indicator

ATTI. Mode: (1) (sticks not in (2)) Good

= 6): (1)

GPS ATTI. Mode: (1) (sticks not in mid

- point (2)) Bad

= 5) : (2)

Ground Station: (1) Worst < 5): (3)



### Flight Attitude

Attitude good: No i ndicator Attitude status bad: (3)

IMU data lost, calibrate IMU (4)



### Compass calibration

Horizontal calibration ( ∝ ) Calibration Failed ( ∝ )

Vertical calibration ( ∝ ) Abnormal Compass Data ( ∝ )



## Low voltage alert

First level alert ( ∝ ) Second level al ert ( ∝ )



## FailSafe mode

During the FailSafe ( ∝ ) Compass Abnormal after power on ( ∝ )



## Errors

System Error (4) Compass Abnormal after power on ( ∝ )



## IOC Recording

Record home

- point successfully (20)

Aircraft is in the 8m range of HP (6)

Recor d forward direction successfully (20)

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.

When the LED blinks (3), it is not recommended to fly.

When the LED blinks (4), please contact your dealer.

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. 53 Specifications

General

Built

- In Functions Built

- in Receiver

Multiple Control Modes

2

- axle Gimbal Supported

Enhanced FailS afe

Intelligent Orientation Control

Dynamical Systems Protection

PC & Bluetooth Ground Station External Receiver Supported

9 Types of Supported Multi

- rotor

Other DJI Products Supported

Low Voltage Protection

4 Configurable Outputs

Sound Alarm

Configure Par ameters Via Bluetooth



## Peripheral

Supported Multi

- rotor Quad

- rotor: I4, X4

Hexa

- rotor: I6, V6, Y6, IY6

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 Z15, iOSD Mark II , D

- BUS Adapter, S1000,S900 EVO, 2.4G

Data Link, H3

- 2D, H3

- 3D, DJI Dropsafe Parachute



## Ele ctrical & Mechanical

Power Consumption MAX 5W (Typical Value: 0.3A@12.5V )

Operating Temperature

- 5°C to +60°C

Total Weight <= 224g (overall)

Dimensions MC: 54mm x 39mm x 14.9mm

 IMU: 41.3mm x 30.5mm x 26. 3mm

GPS

- COMPASS PRO PLUS: 62 mm (diameter) x 14.3 mm

 PMU: 39.5mm × 27.6mm × 9.8mm

LED

- BTU

- I : 30mm x 30mm x 7.9mm



## Flight Performance (can be effected by mechanical performance and payloads)

Hovering Accuracy (In GPS ATTI. Mode) Vertical: 0.5m

Horiz ontal: 1.5m

Maximum Wind Resistance < 8 m / s ( 1 7

. 9 m p h / 2 8

. 8 k m / h )

Max Yaw Angular Velocity 150deg/s

Max Tilt Angle 35°

Ascent / Descent 6m/s

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# FAQ

Use with other DJI products

2.4G Data Link and Z15 GCU connections di agram (CAN1 port) 

## The A2 flight controller is compatible with DJI accessories such as the iOSD Mark

II, Z15 gimbals, the 2.4G Datalink with iPad Ground Station, and so on. Connect

the these devices to the proper CAN ports as listed belo w:

CAN1: iOSD Mark II, Z15 series gimbals.

CAN2: 2.4G Datalink (with iPad Ground Station), H3

- 2D, H3

- 3D gimbals.

Connect Z15 gimbals to CAN1 port if your A2 firmware version is 2.4 or below.

Connect Z15 gimbals to CAN1 or CAN2 port if your A2 firmware ver sion is 2.5. Use

a CAN

- Hub to acquire an extra CAN port when connecting multiple CAN devices.

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. 50 2S~6S

Battery

ESC 1#

ESC 2#

ES C 3#

ESC 4#

ESC 5#

ESC 6#

ESC 7#

ESC 8#

2S~6S

Battery 90 o

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. 51 2.4G Data Link and Z15 GCU connections diagram (CAN2 port)

2S~6S

Battery

ESC 1#

ESC 2#

ESC 3#

ESC 4#

ESC 5#

ESC 6#

ESC 7#

ESC 8#

90 o

2S~6S

Battery

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. 52

Always update the A2 a nd Z15 gimbal firmware to the latest version.

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. 53 Where the Z15 gimbal is connected determines how it must be controlled. If connected to CAN1, two controllers

and two receivers are required to control the aircraft and the gimbal separately. If connected to CAN2, a single

remote controller with 14 channels can control both the aircraft and the gimbal, requiring only one receiver.

When using a remote controller alone, a Futaba T14SG remote controller is compatible. Note that 12

channels can be configured fo r versions below 5.0, while 14 channels can be configured for version 5.0. With

a training cable, users can use two remote controllers for aircraft and gimbal control. Refer to the Futaba

user manual for details.

When using two DJI remote controllers and a single receiver, the remote controllers work as Master and

Slave for aircraft and gimbal control. Only the DJI NDJ6 version 1.0.2.26 or above is compatible. Follow the

steps below to set the two remote controllers as Master/Slave:

Link one remote controll er to the flight control system, which will be the Master.

Plug one head of the trainer port cable into the other remote controller, which will be the Slave.

Turn the gimbal control dial on the Master controller to the left and hold, then plug the other head of

the trainer port cable into the Master controller.

The Master remote controller will emit a beeping sound if the connection is successful. Now you can

release the dial.

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 T h e g i m b a l ’ s fi r m w a r e s h o u l d b e u pd a t e d a s b e l o w :

o H3

- 3D GCU V1. 12 or above

o Z15

- 5D GCU V2.4 or above, IMU V1.8 or above

o Z15

- 5D II GCU V2.4 or above, IMU V1.8 or above

o Z15

- GH3 GCU V2.4 or above, IMU V1.8 or above

o Z15

- GH4 GCU V2.4 or above, IMU V1.8 or above

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. 55 The following H3

- 2D connection diagram is the connection for your reference.



# 1) H3

- 2D users should upgrade the firmware to the latest version (GCU V1.6& IMU V1.6 or above).



# 2) If the 2.4G Data Link and H3

- 2D are used at the same time, a CAN

- HUB module is req uired. ESC 3#

ESC 4#

ESC 5#

ESC 6#

ESC 7#

2S~6S

Battery 2S~6S

Battery

ESC 1#

ESC 2#

ESC 8#

90 o f) Z15

- BMPCC GCU V2.4 or above, IMU V1.12 or above

(2) Z15

- 5N, Z15

- GH2, Z15

- 7N and Z15

- 5R do not support connection with CAN2 port.

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. 56 Channel Mapping Instructions for PC Assistant Software

Basic Channels Default Settings Usage Descriptions

A Roll Control of the Controller Unit,

mapped to the Channel 1 of Receiver During Assistant Software usage, please click

the “Calibra tion” button, to calibrate the

Transmitter sticks travel. During calibrating,

make sure to operate strictly following the

prompts; otherwise may lead to calibration

failure.

Click the “Map” button, then you can re

- do

mapping for A/E/T/R/U. E Pitch Contr ol of the Controller Unit,

mapped to the Channel2 of Receiver

T Throttle Control of the Controller Unit,

mapped to the Channel3 of Receiver

R Yaw Control of the Controller Unit,

mapped to the Channel4 of Receiver

U Control Mode Switch of the Controller

Unit, mapped to the Channel7 of Receiver

Knob Channels Default Settings Usage Descriptions

K1~K6 Remote Gains Adjustment of the

Controller Unit, unmapped. Click “Unmapped” button to map K1~K6 to the

channels of Receiver

.

Direct Channels Default Settings Usage Descriptions

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. 57 D1~D4 Direct Channels (The corresponding ports

are F1~F4 on the Controller Unit) of

Controller Unit, unmapped. Click “Unmapped” button to map D1~D4 to

the Receiver channels. If you enable the

Gimbal f unctions in Assistant Software, then

the F3/F2 are used for gimbal control; even

D3/D2 are mapped to channels of Receiver,

and the signals from the mapped Receiver

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. 58 channels will be ignored.

You can use F4 for switching the video

channel of iOSD Mark II, then map D4 to a

Receiver channel.

Advanced

Channels Default Settings Usage Descriptions

IOC IOC function of the Controller Unit,

unmapped. Click “Unmapped” button to map IOC to a

Receiver channel. It is recommended to use a

3

- position switch channe l.

Go Home One

- Key Go Home function of the

Controller Unit, unmapped. Click “Unmapped” button to map Go Home to

the Receiver channel. It is recommended to

use a 2

- position switch channel.

Gear Intelligent Gear function of the Controller

Unit, unmapped. I f you enable the Gear function in Assistant

Software, then the F1 is used for the gear

control of S800 EVO landing.

H

- Fence(Home

Fence) Home Fence function unmapped Click “Unmapped” button to map Home

Fence onto the Receiver channel. It is

recommended to use a 2

- position switch

channel.

CC (Cruise

Control) Cruise Control function unmapped Click “Unmapped” button to map Cruise

Control to the Receiver channel. It is

recommended to use a 3

- position switch

channel.

S

- Gimbal Ground station servo gi mbal function

unmapped Click “Unmapped” button to map Ground

station servo gimbal to the Receiver channel.

It is recommended to use a 3

- position switch

channel.

Zenmuse

Channels Default Settings Usage Descriptions

ROLL ROLL channel unmapped Click “Unmap ped” button to map ROLL to the

Receiver channel. It is recommended to use a

level switch channel.

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. 59 TILT TILT channel unmapped Click “Unmapped” button to map TILT to the

Receiver channel. It is recommended to use a

level switch channel.

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. 60 PAN PAN channel un mapped Click “Unmapped” button to map PAN to the

Receiver channel. It is recommended to use a

level switch channel.

MODE MODE channel unmapped Click “Unmapped” button to map MODE to

the Receiver channel. It is recommended to

use a 3

- position switch channe l.

SHUT SHUT channel unmapped Click “Unmapped” button to map SHUT to the

Receiver channel. It is recommended to use a

2

- Position switch with spring back function.

AUX1 AUX1 channel unmapped Click “Unmapped” button to map AUX1 to the

Receiver channel. It is recommended to use a

3

- position switch channel.

AUX2 AUX2 channel unmapped Click “Unmapped” button to map AUX2 to the

Receiver channel. It is recommended to use a

2

- position switch channel.

AUX3 AUX3channel unmapped Click “Unmapped” button to map AUX3 to the

Receiver channel. It is recommended to use a

2

- position switch channel.



## Recommended Mapping for Futaba RC (Mode 2, A2 V2.4 or below)

Controller Unit Channel Receiver Channel Recommended Transmitter Switch

A Channe 1 (AIL) Joystick J1

E Channe 2 (ELE) Joystick J2

T Channe 3 (THR) Joystick J3

R Channe 4 (RUD) Joystick J4

U Channe 7 (AUX5) 3

- Position switch, e.g. SG

K1~K6 Channe 5 (GEAR) Knob switch, e.g. LD, RD

Pitch Channe 6 (Vpp)* Knob switch, e.g. LD, RD

D1/D3/D2

---- ----

D4 Channe 9 (AUX1) 2

- Position switch, e.g. SF

IOC Channe 10 (AUX2) 3

- Position switch, e.g. SG

Go Home Channe 11 (AUX3) 2

- Position switch with spring back function, e.g. SH

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. 61 Gear Channe 8 (AUX4) 2

- Position switch, e.g. SF

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. 62 H3

- 2D Channe 12 ( AUX5 ) * Knob switch, e.g. LD

、 RD

H

- Fence Channe 6 (Vpp)* 2

- Position switch, e.g. SF

CC Channe 12 ( AUX5 ) * 3

- Position switch, e.g. SB

*Note that these settings should be configured according to your requirements.



## Recommended Mapping for Futaba RC (Mode 2, A2 V2.5 and Futaba below V5. 0)

Controller Unit Channel Receiver Channel Recommended Transmitter Switch

A Channe 1 (AIL) Joystick J1

E Channe 2 (ELE) Joystick J2

T Channe 3 (THR) Joystick J3

R Channe 4 (RUD) Joystick J4

U Channe 7 (AUX5) 3

- Position switch, e.g. SG

IOC/CC Channe 8 (AUX4) 3

- Position switch, e.g. SA

Gear Channe 9 (AUX6) 2

- Position switch, e.g. SF

PAN Channe 5 (GEAR) Level switch, e.g. LS

、 RS

TILT Channe 6 (Vpp) Level switch, e.g. LS

、 RS

MODE Channe 10 (AUX1) 3

- Position switch, e.g. SC

Photo Channe 11 (AUX2) 2

- Position switch with spring back function, e.g. SH

Video Channe 12 (AUX3) 3

- Position switch, e.g. SG

Note that these settings sh ould be configured according to your requirements.



## Recommended Mapping for Futaba RC (Mode 2, A2 V2.5 and Futaba V5.0)

Controller Unit Channel Receiver Channel Recommended Transmitter Switch

A Channe 1 (AIL) Joystick J1

E Channe 2 (ELE) Joystick J2

T C hanne 3 (THR) Joystick J3

R Channe 4 (RUD) Joystick J4

U Channe 7 (AUX5) 3

- Position switch, e.g. SG

IOC Channe 8 (AUX4) 3

- Position switch, e.g. SA

CC Channe 9 (AUX6) 2

- Position switch, e.g. SF

Gear DG1 2

- Position switch, e.g. SF

ROLL Channe 10 (AUX1) Knob switch, e.g. LD

、 RD

PAN Channe 5 (GEAR) Level switch, e.g. LS

、 RS

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. 63 TILT Channe 6 (Vpp) Level switch, e.g. LS

、 RS

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. 64 MODE Channe 11 (AUX2) 3

- Position switch, e.g. SC

Photo DG2 2

- Position switch with spring back function, e.g. SH

Video Channe 12 (AUX3) 3

- Position switch, e.g. SG

Note that these settings should be configured according to your requirements.



## Recommended Mapping for DJI NDJ6 RC (A2 V2.5)

Controller Unit Channel Receiver Channel Recommended Transmitter Switch

A A Master remote control J1

E E Master remote control J2

T T Master remote control J3

R R Master remote control J4

U U Master remote control S1

Gear X2 Master remote control S2

ROLL A Slave remote control J1

PAN E Slave remote control J2

TILT R Slave remote control J4

MODE U Slave remote control S1

Photo X1 Slave remote control LD

Video X2 Slave remote control S2

Note that these settings should be configured according to your requirements.

Follow the steps below to check if the channels are working properly:

 Run the A2 Assi stant and go to the Channel Mapping page.

 Move the Master remote controller’s sticks and switches to ensure they are working properly on the

Channel Mapping page.

Note: For the H3

- 3D gimbal, set a 2

- position switch with spring back function for the TILT c hannel and a 2

- position

switch for the MODE channel.



## Settings of gain values for Your Reference

To set the value of basic gain and attitude gain you can refer to the following diagram. These values are only for

reference and may vary in practice.

Aircraft Configuration Information Basic Attitude

Motor ESC Propeller Battery Weight Pitch Roll Yaw Pitch Roll Vertical

F450 DJI

- 2212 D JI

- 30A DJI

- 8 Inch 3S

- 2200 890 g 1 5 0 1 5 0 135 1 5 0 1 5 0 140

F550 DJI

- 2212 DJI

- 30A DJI

- 8 Inch 4S

- 3300 1 53 0 g 1 7 0 1 7 0 1 5 0 1 6 0 1 6 0 1 5 0

S 8 00 E V O / Z 1 5 DJI

- 4114 DJI

- 40A DJI

- 15Inch 6S

- 1 5 000 7000g 140 140 1 3 0 140 140 1 3 0

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5D camera DJI

- 4114 DJI

- 40A DJI

- 15Inch 6S

- 1 5 000 9200g 1 2 0 1 2 0 1 2 0 1 7 0 1 7 0 1 2 0

S 1 00 0 / 5 D g imb a l /

5D camera DJI

- 4114 DJI

- 40A DJI

- 15Inch 6S

- 1 5 000 9300g 1 2 0 1 2 0 1 2 0 1 7 0 1 7 0 1 2 0



## The Transmitter setup of FUTABA

Pl ease configure the Frequency item on your Transmitter adhere to the table below. (The names of FASST modes

here are based to the Transmitter FUTABA T8FG, please ensure to select the most similar mode as the names

differs for different Transmitters)



## GPS SNR Functions Description

The DJI A2 Assistant (version 1.1.22) and iPad ground station (version 1.4.62) have recently added “SNR Health” and

“SNR Fluctuation” index monitors for GPS signals. User can mo nitor GPS signal quality, ensuring they have strong

and stable signals for better flight performance. By referring to these two values, user will be empowered to find

the best locations for take off and flight, while also detecting areas that might interfere with GPS signals.

The SNR interface provides you with “SNR Health” and “SNR Fluctuation” index monitors whose values change

according to aircraft maneuvers and environmental interference.

The “SNR Health Index” shows the GPS signal strength captured by the GPS receiver. A larger number

ind icates a stronger GPS signal. We highly recommend pilots only take off when the SNR health value is

greater than 36.

Transmitter type AREA FASST

FUTABA 18MZ Default FASST

- MULTI \ FASST

- 7CH

FUTABA 14MZ with TM

- 14 Default MULT \ 7CH

FUTABA 14SG FRANCE \ GEN ERAL FASST

- MULTI \ FASST

- 7CH

FUTABA 12Z 2.4G FASST with TM

- 14 Default MULT \ 7CH

FUTABA 12FG 2.4G FASST with TM

- 14 Default MULT \ 7CH

FUTABA 10CG or 10C with TM

- 10 Default 7CH

FUTABA 9C SUPER with TM

- 7 or TM

- 8 Default 7CH

FUTABA 8FG SUPER FRANCE \ GENERAL MLT 2 \ MULT \ 7CH

FUTABA 8FG FRANCE \ GENERAL MULT/7CH

FUTABA 7C 2.4G Default Default

FUTABA 6EX FASST Default Default

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. 66 T h e “ S NR F l u c t u a tio n I n d e x ” s h o ws t h e o v e r a l l s t a b i l ity o f t h e c r a f t ’ s c u rr en t G P S s i g n a l

. A s m a ll e r n u m b e r

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. 60 means that the signals will fl uctuate less and provide a more stable GPS signal overall.

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. 61 A2 Receiver Type Description

For different types of receiver, displays on the A2 Assistant software will be different.

For PPM receivers with Failsafe, the display is as below:

For the other receivers, the display is as below:

For example, when used with DJI Lightbridge, you will see the second display after disconnecting the remote

controller and Lightbridge. At this time, the A2 LED will blink blue and the aircraf t will enter Failsafe.

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# Disclaimer

Please read this disclaimer carefully before using this product. By using this product, you hereby agree to this disclaimer and signify that

you have read it fully.

THIS PRODUCT IS NOT SUITABLE FOR PEOPLE UNDER THE AGE OF 18.

A2 flight controller is designed for experience multi

- rotor enthusiasts providing excellent self

- leveling and altitude holding, which completely takes the stress out of flying

RC multi

- rotors for both professional and hobby applications. Despite the p roduct having a built

- in flight control system and our efforts in making the operation of the

controller as safe as possible when the main power battery is connected, we strongly recommend users to remove all propellers when calibrating and setting

paramet ers. Make sure all connections are good, and keep children and animals away during firmware upgrade, system calibration and parameter setup. DJI

Innovations accepts no liability for damage(s) or injuries incurred directly or indirectly from the use of this product in the following conditions:



# o Damage(s) or injuries incurred when users are drunk, taking drugs, drug anesthesia, dizziness, fatigue, nausea and any other conditions no matter physically or

mentally that could impair your ability.



# o Damage(s) or inju ries caused by subjective intentional operations.



# o Any mental damage compensation caused by accident.



# o Failure to follow the guidance of the manual to assemble or operate.



# o Malfunctions caused by refit or replacement with non

- DJI accessories and parts.



# o Damage (s) or injuries caused by using third party products or fake DJI products.



# o Damage(s) or injuries caused by mis

- operation or subjective mis

- judgment.



# o Damage(s) or injuries caused by mechanical failures due to erosion, aging.



# o Damage(s) or injuries caused by continued flying after low voltage protection alarm is triggered.



# o Damage(s) or injuries caused by knowingly flying the aircraft in abnormal condition (such as water, oil, soil, sand and other unknown material ingress into the

aircraft or the assembly is no t completed, the main components have obvious faults, obvious defect or missing accessories).



# o Damage(s) or injuries caused by flying in the following situations such as the aircraft in magnetic interference area, radio interference area, government regulat ed

no

- fly zones or the pilot is in backlight, blocked, fuzzy sight, and poor eyesight is not suitable for operating and other conditions not suitable for operating.



# o Damage(s) or injuries caused by using in bad weather, such as a rainy day or windy (more th an moderate breeze), snow, hail, lightning, tornadoes, hurricanes

etc.



# o Damage(s) or injuries caused when the aircraft is in the following situations: collision, fire, explosion, floods, tsunamis, subsidence, ice trapped, avalanche, debris

flow, landslide, earthquake, etc.



# o Damage(s) or injuries caused by infringement such as any data, audio or video material recorded by the use of aircraft.



# o Damage(s) or injuries caused by the misuse of the battery, protection circuit, RC model and battery chargers.



# o Other los ses that are not covered by the scope of DJI Innovations liability.



# Trademark

DJI and A2 are registered trademarks of DJI. 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 with all rights reserved. No part of this product or manual shall be reproduced in any form without

the prior written consent or authorization of DJI. No patent liability is assumed with respect to the use of the product or information contained herein.

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