# Aircraft

This section introduces the features of the Flight Controller, Vision Positioning System, and the Intelligent Flight Battery

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# Aircraft Flight Controtl The Phantom 3 Professional's flight controller features several important upgrades, including a new flight mode. Safety modes include Failsafe and Return-to-Home. These features ensure the safe retum of your aircraft if the control signal is lost. The flight controller can also save critical flight data from each flight to the on-board storage device. The new flight controller also provides increased stability and a new air braking feature. 

## Flight Mode Three flight modes are available. The details of each flight mode are found below: P-mode (Positioning) : P-mode works best when GPS signal is strong. There are three different states 

### of P-mode, which will be automatically selected by the Phantom 3 Professional depending on signal strength of GPS and Vision Positioning sensors : 

### P-GPS: GPS and Vision Positioning both are available. The aircraft is using GPS for positioning. P-OPTI: Vision Positioning is available but the GPS signal strength is not sufficient. The aircraft is using only the Vision Positioning System for positioning. 

### P-ATTI: Neither GPS nor Vision Positioning is available. The aircraft is using onfy its barometer for positioning, so only altitude can be stabilized. 

### A-mode (Attitude): GPS and Vision Positioning System are not used for stabilization. The aircraft only uses its barometer. The aircraft can still automatically return to the home point if the control signal is lost and the Home Point was recorded successfully. F-mode (Function): Intelligent Orientation Control (IOC) is activated in this mode. For more information about IOC, refer to the IOC section in the Appendix.
.O, Use the Flight Controller mode switch to change the flight mode of the aircraft, refer to the "Flight Mode Switch" on Paae 26 for more information. 

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### The Phantom 3 Professional has Front LEDs and Aircraft Status Indicators. The positions of these LEDs are shown in the figure below: 

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Front LED Aircraft Status Indicator



### The Front LEDs show the orientation of the aircraft. The Front LEDs glow solid red when the aircraft is tumed on to indicate the front (or nose) of the aircraft. The Aircraft Status Indicators communicate the system status of the flight controller. Refer to the table below for more information about the Aircraft Status Indicators:

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### Aircraft Status Indicator Description
~ ~~ 

### Normal R: 'G,Y ...... Red, Green and Yellow Flash Alternatively G' v-•... Green and Yellow Flash Altematively G" • • • • • . Green Flashes Slowly

D GX2 ...... GreenFlashesTwiee 0



### ~ Y • • • • • • Yellow Flashes Slowly 

### Warning Y, ...... FastYellow Flashing 

### R _ ...... Slow Red Flashing R ..••••FastRedFlashing A • • • -. . Red Flashing Alternatively

^~ n —Solid Red 

### R Y ...... Red and Yetfow Fiash Alternatively Turning On and Self Diagnostic Testing Warming Up Safe to Fly (P-mode with GPS and Vision Positioning) Safe to Fly (P-mode with Vision Positioning but without GPS) Safe to Fly (A-mode but No GPS and Vision Positioning)
Remote Controller's Signal Lost 

### Low Battery Warning Critical Battery Warning IMU Error Critical Error 

### Compass Calibratidn Required 

## Return-to-Home (RTH) The Return-to-Home (RTH) function brings the aircraft back to the last recorded Home Point. There are three types of RTH procedures: Smart RTH, Low Battery RTH, and Failsafe RTH. This section describes these three scenarios in detail. Q] GPS Description 

### If a strong GPS signal was acquired before takeoff, the Home Point is the location from which the aircraft was launched. The GPS signal Home Point ~ 

### il = strength is indicated by the GPS icon ( R,ul',: ). The aircraft status indicator will blink rapidly when the home point is recorded. 

## Smart RTH Use the RTH button on the remote controller (refer to "RTH button" on page 26 for more information) or

### tap the RTH button in the DJI Pilot app and follow the on-screen instructions when GPS is available to initiate Smart RTH. The aircraft will then automatically retum to the last recorded Home Point. You may use the remote controller's control sticks to control the aircraft's position to avoid a collision during the Smart RTH process. Press and hold the Smart RTH button once to start the process, and press the Smart RTH button again to terminate the procedure and regain full control of the aircraft.

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## ~~ Low Batte ry 

## R

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## "H ~ 

### The low battery level failsafe is triggered when the DJI Intelligent Flight Battery is depleted to a point that may affect the safe retum of the aircraft. Users are advised to retum home or land the aircraft immediately when prompted. The DJI Pilot app will display a notice when a low battery warning is triggered. The aircraft will automatically retum to the Home Point if no action is taken after a ten-second countdown. The user can cancel the RTH procedure by pressing the RTH button on the remote controller. The thresholds 

### for these wamings are automatically determined based on the aircraft's current altitude and distance from the Home Point. 

### The aircraft will land automatically if the current battery level can only support the aircraft long enough to descend from its current altitude. The user can still use the remote controller to alter the aircraft's orientation during the landing process. 

### The Battery Level Indicator is displayed in the DJI Pilot app, and is described below:

Critical Low battery level Sufficient battery warning(Red) Ievel(Green)

Low battery level warning(Yellow) Remairing fight time

Power requires to return home


### Battery Level Remark Aircraft Status Warning Indicator DJI Pilot app Flight Instructions



### Low battery The battery level waming power is low.



### Please land the aircraft. Aircraft status

indicator blinks RED slowly. Tap "Go-home" to have the

aircraft return to the Home point and land automatically, or "Cancel" to resume normal flight. If no action is taken, 

### the aircraft will automatically go home and Iand after 10 seconds. Remote controller will sound an alarm. 

### Fly the aircraft back and land it as soon as possible, then stop the motors 

### and replace the battery.
me D,II Pilot app display wilt Gritical Low The aircraft Aircraft status Allow the aircraft to flash red and the aircraft will battery level must land indicator blinks descend and land start to descend 

### , The remote 

### waming immediately. RED quickly. controller will sound an alarrn. 

### automafically.

Estimated Estimated remaining flight remaining 

### based on current N/A N/A N/A 

### flight time battery level.



### 13 D 0 

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## .~ , • When Critical battery Ievel waming is triggered and the aircraft begins to land automatically, you may push the throttle upward to make the aircraft hover at its current altitude, giving you an opportunity to navigate to a more appropriate landing location. . The colored zones and markers on the battery level indicator bar reflect the estimated remaining flight time. They are automatically adjusted according to the aircraft's current iocation and status. 

## Failsafe RTH

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### If the Home Point was successfully recorded and the compass is functioning normally, Failsafe RTH willbe automatically activated if the remote controller signal is lost for more than three seconds. The Return0 

### D to-Home process may be interrupted and the operator may regain control of the aircraft if the remote iB controller signal connection is re-established. 

### Failsafe Ilfustration i Record Home Point 2 Confirming Home Point 3 Remote Controller Signal Lost


## ~ ~R~ Ilii

Blinking Green Blinking Green Fast Blinking Yellow 

### 4 Signal Lost Lasts (after 3 sec ) 5 RTH (adjustable altitude) 6 Landirig (after hovering for 5 secs ) ; 

### " ~
-- ~ ~ ~ .

- ---- : 

### ~ x 1 Fast Blinking Yellow Fast Blinking Yellow Fast Blinking Yellow 

### i , • The aircraft cannot avoid obstruction during the Failsafe RTH, therefore, it is important to set an suitable Failsate altitude before each flight. Launch the DJI Pilot app and enter "Camera" and select "MODE > Advanced Settings > Failsafe mode" to set the Failsafe altitude. • The aircraft will stop its ascent and return to the Home Point immediately if the throttle stick is moved during the Failsafe RTH procedure. 

## Vision Positioning System The DJI Vision Positioning System uses ultrasound and image data to help the aircraft maintain its current position. With the help of Vision Positioning, your Phantom 3 Professional can hover in place more precisely and fly indoors or in other environments where a GPS signal is not available. The main components of the Vision Positioning System are located on the bottom of your Phantom 3 Professfonal; they include [2] two ultrasonic sensors and [1] one monocular camera.



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Using Vision Positioning 

### Vision Positioning is activated automatically when the Phantom 3 Professional is turned on. No further action is required. Vision Positioning is typically used in indoor environments, where GPS 

### is unavailable. Using the sensors that are built into the Vision Positioning system, the Phantom 3 Professional can hover precisely even without GPS.



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## •~~ c~ sv Follow the steps below to use Vision Positioning: P 1. Toggle the flight mode switch to P-mode. 

### 2. Place the aircraft on a flat surface. Note that the Vision Positioning system cannot work properly on surfaces without clear pattem variations. 3. Turn on the aircraft. The aircraft status indicator will flash green two times, which indicates the Vision Positioning system is ready. Gently push the throttle up to lift off and the aircraft will hover in place.

~ i The performance of your Vision Positioning System is affected by the surface over which it is

~ 

### flying. The uitrasonic sensors may not be able to accurately measure distances when operating above sound-absorbing materials. In addition, the camera may not function correctly in suboptimal environments. The aircraft will switch from P-mode to A-mode automafically if neither GPS nor Vision Positioning System are available. Operate the aircraft with great caution in the following situations: • Flying over monochrome surfaces (e.g. pure black, pure white, pure red, pure green). • Fiying over a highly reflective surfaces. • Flying at high speeds(over 8 m/s at 2 meters or over 4 m/s at 1 meter). • Flying over water or transparent surfaces. • Flying over moving surfaces or objects. 

### • Flying in an area where the Iighting changes frequently or drastically. • Flying over extremely dark (lux < 10) or bright (lux > 100,000) surfaces. 

### • Flying over surfaces that can absorb sound waves (e.g. thick carpet). • Flying over surfaces without clear pattems or texture. 

### • Flying over surfaces with identical repeating pattems or textures (e.g. files with the same design). • Flying over inclined surfaces that will deflect sound waves away from the aircraft.

. ~ 

### , • Keep the sensors clean at all times. Dirt or other debris may adversely affect the effectiveness of the sensors. 

### • Vision Positioning is only effective when the aircraft is at altitudes of 0.3 to 3 meters. • The Vision Positioning System may not function properly when the aircraft is flying over water. • The Vision Positioning System may not be able to recognize pattern on the ground in low light conditions (less than 100 lux). • Do not use other ultrasonic devices with frequency of 40 KHz when Vision Positioning system is in operation. 

### • Vision Positioning System may not be able to stabilize the aircraft when flying close to the ground (below 0.5 meters) at fast speeds..

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### ~ Keep the animals away from the aircraft when Vision Positioning system is activated. The sonar sensor emits high frequency sounds that are only audible to some animals. 

## Flight Recorder _ Flight data is automatically recorded to the internal storage of the aircraft. This includes flight telemetry, aircraft status information, and other parameters. To access these data, connect the aircraft to the PC through the Micro-USB port and Iaunch the DJI Pilot app. 

## Attaching and Detaching the Propellers D _ ~ Use only DJI approved propellers with your Phantom 3 Professional. The grey and black nuts on



### ~ the propeller indicate where they should be attached and in which direction whey should spin. To attach the propellers properly, match the nut color with the motor axis color.
Propellers Silver pot Black Dot Figure 

### Attach On Motors with a grey axes Motors with a black axes Legends e) Lock : Turn the propellers in the indicated direction to mount and tighten.

b) Unlock : Tum the propellers in the indicated direction to loosen and remove.
Attaching the Propellers 1. Be sure to remove the waming stickers from the motors before attaching the propellers. 

### 2. Attach the propellers with silver dots onto the motors with silver axes and spin the propellers clockwise to secure them in place. Attach the propellers with black dots onto the motors with black axes and spin the propellers counter-clockwise to secure them in place. Be sure to tighten each propeller by hand before flight.

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### ~ i • Ensure propellers are attached to its corresponding motors, otherwise the aircraft cannot take off. • Wear gloves when handling propellers. 

### • Hand tighten each of the propellers on the corresponding motors to ensure it is attached firmly.
Detaching the Propellers Hold the motor in place with one hand, then spin the propeller in the indicated unlock direction. 

### i , • Check that the propellers and motors are installed correcUy and firmly before every flight. • Ensure that all propellers are in good condition before each fiight. DO NOT use aged, chipped, or broken propellers. 

### • To avoid injury, STAND CLEAR of and DO NOT touch propellers or motors when they are spinning. D 0 

### • ONLY use original DJI propellers for a better and safer flight experience. i 

## DJI Intefligent Flight Battery , The DJI Intelligent Flight Battery has a capacity of 4480 mAh, a voltage of 15.2 V, and a smart charge/ discharge functionaiity. It should only be charged using an appropriate charger that has been approved by DJI.

Intelligent Flight Battery Charger A The Intelligent Flight Battery must be fully charged before using it for the first time. Refer to 'Charging the Intelligent Flight Battery' for more information. 

### =Q= Be aware that the output power of the supplied Phantom 3 Professional charger is 100W.

DJI Intelligent Flight Battery Functions 

### 1. Battery Level Display: the LED indicators display the current battery level. 2. Battery Life Display: the LEDs display the current battery power cycle. 3. Auto-Discharging Function: To prevent swelling, the battery automatically discharges to below 65% of total power when it is idle for more than ten days. It takes around two days to discharge the battery to 65%. It is normal to feel moderate heat being emitted from the battery during the discharge process. Discharge thresholds can be set in the DJI Pilot app. 

### 4. Balanced Charging: Automatically balances the voltage of each battery cell when charging. 5. Overcharge Protection: Charging automatically stops when the battery is fully charged. 6. Temperature Detection: The battery will only charge when the temperature is between 0°C (32°F) and 40°C (104°F). 

### 7. Over Current Protection: The battery stops charging when high amperage (more than 8 A) is detected. 8. Over Discharge Protection: To prevent over-discharge damage, discharging automatically stops when the battery voltage reaches 12 V. 

### 9. Short Circuit Protection: Automatically cuts the power supply when a short circuit is detected.
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# ^.Phantom 3 Professional User Manual


### 10. Battery Cell Damage Protection: The DJI Pilot app displays a warning message when a damaged battery cell is detected. 11. Battery Error History: Browse the battery error history in the DJI Pilot app. 

### 12. Sleep Mode: To save power, the battery enters sleep mode after 20 minutes of inactivity. 13. Communication: Information pertaining to the battery's voltage, capacity, current, etc. is transmitted to the aircraft's main controller.

D i, Refer to Phantom 3 Professional /Aduanced lntelligent Flight Battery Safety Guidelines before 

### use. Users take full responsibility for all operations and usage.


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0 

# w Using the Battery

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B_;i',er, =vr':lni?,_atOrs Turning ON/OFF Turning On: Press the Power Button once, then press again and hold for 2 seconds to turn on. The



### Power LED will turn red and the Battery Level Indicators will display the current battery level. Turning Off: Press the Power Button once, then press again and hold for 2 seconds to turn off. The

battery power LED will flash when powering off the Phantom to allow automatically stopping of a recording during the event recording wasn't stopped.
Low Temperature Notice: 

### 1. Battery capacity is significantly reduced when flying in tow temperature (< 0°C) environments. 2. It is not recommended that the battery be used in extremely low temperature (< -10°C) environments. Battery voltage should reach the appropriate Ievel when operating environment with temperatures between -10°C and 5°C. 

### 3. End the flight as soon as the DJI Pilot app displays the "Low Battery Level Waming" in low temperature environments. 4. Keep the battery indoors to warm it before flying in low temperature environments. 

### 5. To ensure optimal performance of the battery, keep the battery temperature above 20°C. 6. The charger will stop charging the battery if the battery cell's temperature is not within the operating range (0°C — 40°C ).



### i In cold environments, insert the battery into the battery compartment and allow the aircraft for approximately 1-2 minutes to warm up before taking off.
Checking the Battery Level 

### The Battery Level Indicators display how much power remains. When the battery is turned off, press the Power Button once. The Battery Level Indicators will light up to display the current battery level. See below for details.

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### [3 The Battery Level Indicators wili also show the current battery Ievei during charging and discharging. The indicators are defined below. Q: LED is on. 0: LED is flashing. Q : LED is off. Battery Level 

## LED1 LED2 LED3 LED4 Battery Level Q Q Q Q 87.5%-100% Q Q Q -.0 75%-87.5% Q Q Q Q 62.5%-75% Q Q {(€ 0 50%A-62.5°/a Q Q Q Q 37.5%-50% Q 

### ~ Q Q 25%w37.5 1 % Q Q Q Q 12.5%-25%



### ~ Q Q Q 0%--12.5% 

## Q Q Q Q =0%

Battery life 

### ^ Battery life refers to how many more times the battery can be discharged and recharged before it must be replaced. When the battery is tumed off, press and hold the Power Button for 5 seconds to check the 

### battery life. The Battery Level Indicators will light up andlor blink for two seconds, as shown below:

Battery Life LED1 LED2 LED3 LED4 Battery Life Q Q 0 Q 90%-100% Q Q Q Q 80%-90% 70%-80% Q o 60%-70% Q Q Q Q 50%-60% Q 

### ~ ? Q Q 40 1 /.-50% Q Q Q Q 30%-40%



## ~ 0 Q Q 201/.-30°io Q Q Q Q below 20%



### ~ When battery life reaches 0%, it can no longer be used. 

### MA For more intormation about the battery, launch the DJI Piiot app and check the information that is listed under the battery tab. D 0 

### w

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Charging the Intelligent Flight Battery 1. Connect the Battery Charger to a power source (100-240 V 50/60 Hz). 

### 2. Open the Protection Cap and connect the Intelligent Flight Battery to the Battery Charger. If the battery level is above 95%, tum on the battery before charging. 

### 3. The Battery Level Indicator will display the current battery level as it is charging. 4. The Intelligent Flight Battery is fully charged when the Battery Level Indicators are all off. 5. Air-cool the Intelligent Flight Battery after each flight. Allow its temperature to drop to room temperature before storing it for an extended period. i, • We do not recommend charging the Intelligent Flight Battery and remote controller with the 

### D standard charger at the same time, otherwise the charger may overheat.

~ 

### • Always turn off the battery before inserting it or removing it from the Phantom 3 Professional. a Never insert or remove a battery when it is turned on. 

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Intelligent Flight Battery Charger Pawer Outlet 

### Battery Level Indicators White Charging LED1 LED2 LED3 LED4 Battery Level 

### Q 0 0 0 0%-25% [~ 0" 

### ~ Q 25 % -50% 50%--75% 75%-100% 0 D 0 0 Fully Charged
Battery Protection LED Display 

### The table below shows battery protection mechanisms and corresponding LED pattems.
Battery Level Indicators while Charging 

### LED1 LED2 LED3 LED4 Blinking 1'attern Battery Protection ttem 0 D 0 LED2 blinks twice per second Over current detected p Q Q LED2 blirtks three times per second Short circuit detected 0 0 D LED3 blinks twice per second Over charge detected 

### 0 0 LED3 bfinks three times per second Chver-voltage charger detected LED4 blinks twice per second Charging temperature is too low 

### 0 LED4 blirtks three times per second Charging temperature is too high

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After these issues are resolved, press the Power Button to tum off the Battery Level Indicator. Unplug the 

### Intelligent Flight Battery from the charger and plug it back in to resume charging. Note that you do not need to unplug and plug in the charger in the event of a room temperature error; the charger will resume charging when the temperature is within the allowabfe range. & DJI does not take any responsibility for damage caused by third-parry chargers. How to discharge your Intelligent Flight Battery: 

### Slow : Place the Intelligent Flight Battery into the Phantom 3 Professional's Battery Compartment and tum it on. Leave it on until there is less than 8% of power left, or until the battery can no longer be turned on. Launch the DJI Pilot app to check battery levels. Rapid : Fly the Phantom 3 Professional outdoors until there is less than 8% of power left, or until ~ the battery can no longer be turned on. 

### ~

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