# Spreading **Wings S900**  User Manual V1.2
2014.12

### 2 © 2014 DJI. All Rights Reserv ed. 

# Disclaimer
Thank you for purchasing the S900. Please visit the Spreading Wi ngs S900 page on www. dji.com regularly to keep up to date wi th product information, technical updates and manual corrections. Information in this manual is subject to change w ithout notice. In using this product, you hereby agree to this disclaimer and signify that you have understood all points completely. When assembling this product, follow all instructions carefully. The manufacturer and seller assume no liability for any damage or injury arising from the use of this product. This is a class A product of the FCC certification. In a domestic environment this product may cause radio interference, in wh ich case the user may be required to take adequate measures. DJI is a registered trademark of DJI. Names of product, brand, etc., appearing in this manual are trademarks or registered trademarks of their respective ow ner companies. This product and manual are copyrighted by DJI wi th all rights reserved. No part of this product or manual shall be reproduced in any form wi thout the prior wr itten consent or authorization of DJI. 

# Ab **out**
The S900 is designed for professional aerial photography and cinematography. It is user friendly, safe, stabilized and easy to fly wh ile its integrated design makes assembly and configuration simple and fast. Retractable landing gear, vibration dampers, slightly angled arms and a minimalized gimbal mount allow for a clear 360 degree vi ew f rom the camera. A patented pow er distribution board, built

- in high

- speed ESCs and motors with high efficiency propellers ensure dynamic stability and maximized power efficiency. Used with a professional DJI multi

- rotor autopilo t system, the S900 can hover and fly reliably making it ideal for photography and cinematography.

126mm
305mm

433mm© 2014 DJI. All Rights Reserv ed. 

### 3



# Contents
Disclaimer 2 

### About 2 

### Contents 3 

### Cautions 4 

### Legend 4 

### In The Box 5 

### Mounting the Landing Gear 6 

### Mounting Frame Arms 7 

### Mounting Electronics and Wi ring 11 

### Connecting XT60 Ports on the Center Frame 16 

### Installing Battery 16 

### Setting Up the Landing Gear 18 

### Mounting the Gimbal 20 

### Appendix 22 ESC Sound 22 ESC LED 22 

### Specifications 22 Gain Value Settings 23 

### FAQ 24 Soldering the ESC 24 Remounting the Propellers 24 Propeller Precautions 24 

### Using the Propeller Holder 25 Assembling Motor Vibration Absorbers 25 Remounting the Landing Gear Servo 26 Recalibrating Servo Travel 26 

### Part List 27 

### FCC Statements 31

### 4 © 2014 DJI. All Rights Reserv ed. 

# Cautions
When flying, the rotating propellers may cause serious damage and injury. Please fly safe at all times.

1. Use a bracket to mount the GPS module on the center frame to avoid interference with the power board. 2. Ensure the IMU is mounted with the arrow pointing toward the nose of the aircraft. 3. If using a receiver, attach it under the bottom board of the center frame with the end of the antenna facing dow nw

ards and aw

ay from obstructions to avoid signal loss. 4. Ensure frame arms are mounted correctly. a) Motor mounts wi th CCW marks should be mounted to the center frame positions wi th the follow ing marks: M1, M3 and M5. b) Motor mounts wi th CW marks should be mounted to the center frame positions wi th the follow ing marks: M2, M4, and M6. 5. Do not remove any glued

- in screw s. 6. Screw s that already have blue glue can be used once wi thout thread locker. On other occasions, apply appropriate thread locker first. 7. The S900 should be lifted off the ground w hen testing landing gear or recalibrating servo travel.

1. ESCs are not water
- proof, please do not fly in rain or snow. 2. Ensure all soft dampers and vibration absorbers are in good condition before every flight. If not, replace immediately. Otherw ise, the flight performance of your aircraft w ill be adversely affected. 3. Ensure all parts are in good condition before each flight. Do not fly with worn or broken parts. 4. Ensure propellers and motors are installed correctly and propellers are unfolded before flying. 5. Ensure ESC signal connectors and power cable connectors are tight before every flight. 6. When flying, maintain a safe distance away from people, buildings, high

- voltage lines, tall trees, water and other hazards. 7. Use only 6S LiPo batteries for the power supply. 8. Ensure all output signals from M1 to M6 are in proper working order when using the DJI A2 flight control system to avoid damage or injury. 9. Do not overload the system. 10. Do not get close to or touch motors or propellers wh en they are spinning as this can cause serious inj ury. 11. Disconnect the battery and remove the camera during transportation to avoid damage or injury. 12. We strongly recommend using as many DJI manufactured parts as possible.

If you have any problems you cannot resolve, contact your dealer or DJI customer service. 

# Legend

Important Hints and Tips 

### Others Flight Cautions Assembly CautionsCautions© 2014 DJI. All Rights Reserv ed. 

### 5 

# In The **Box**

Center Frame ×1 Frame Arms ×6

Landing Skid Tubes ×2 (w ith Silicone Rubber Dampers) Landing Gear Legs ×2

GPS Collapsible Mount ×1 Springs ×2

Connection Cable Accessories Package ×1 Connector Set ×1 CW propellers ×2 CCW propellers ×2


### or 3

- PIN Connection Cables ×8 Magic tapes ×4 The red knobs ×6 Landing gear leg rings ×4 Soft dampers ×50 

### 3

- PIN Servo Cable ×1 Screw Package ×1 For frame arms mount: M4×35 For landing gear mount: M3×8, M2.5×8 (socket cap), M3×22 (socket cap)


### Tools Required

2.1 mm Hex Wrench, 2.5mm Hex Wrench Mounting screw s.
Nylon Cable Tie, Scissors, Cutting Pliers/Dykes Binding devices and wi res. Foam Double Sided Adhesive Tape Mounting receiver, controller and other modules. Thread Locker Fastening screw s. 

### Tools UsageInTheBox

### 6 © 2014 DJI. All Rights Reserv ed. 

# Mounting the Landing **Gear**
Instructions 1. Put one landing gear leg ring onto each landing gear leg. 2. Insert one landing gear leg into each landing skid tube and secure it in place by tightening the M2.5×8 (socket cap) screw

. Ensure silicone rubber dampers are attached to each end. 3. Insert the landing gear leg into connection point on the center frame. Affix in place with M3×8 screws. 4. Connect both springs on the legs to the center frame.

Note the springs are 58.5mm before connecting to the center frame, and are stretched to 70mm wh en mounting is completed. It is recommended that the landing gear leg ring be placed about 30mm ab ove the landing skid tube.

70mm

30mm M2.5×8 (socket cap)MountingtheLandingGear© 2014 DJI. All Rights Reserv ed. 

### 7 

# Mounting Frame **Ar ms**  Instructions 1. Prepare the arms. (1) Check all propellers for cracks, then install and screw each propeller cover on tightly. (2) Ensure all motors are mounted firmly and rotate freely. (3) Mount all arms wi th red propeller covers to M1 and M2 to indicate the nose of the S900. (4) Identify the C W and CCW marks on the arms. Mount the arms w ith the CCW mark to the M1, M3 and M5 positions of the center frame. The arms w ith the C W mark should be mounted to the M2, M4 and M6 positions of the center frame.



### Cover Propeller
Screw Mount Power Cable

Screw Motor


### ESC CW or CCW Mark LED* ESC Signal Cable

*LED is on after motor started.

2. Insert each frame arm vertically into the mounting area on the center frame. 3. Line up the screw holes of the frame arm and center frame. 4. Insert the M4×35 screw from the right of the frame arm (the thread is located on the left of the screw mount). Tighten each screw correctly. Over tightening may lead to connector abrasion.MountingFrameArms

### 8 © 2014 DJI. All Rights Reserv ed.

**Spreading Wings S900** User Manual
5. Gently lift the frame arm. 6. Tw ist the red knob to lock each arm in place. Be sure there is an audible click, wh ich indicates a proper lock. Check the arm for movement. To store, untw ist the knob and low er the frame arm.

7. Now unscrew 6 screw s (M2.5×8 cheese) on the upper plate of the center frame and remove the upper plate. Then unscrew the 4 screw s (M3×8 self

- tapping, found under the center frame) of the round cover and remove it to gain access to the ESC and power cable installation area. 8. Plug each ESC signal cable into the slot near each arm on the center frame.MountingFrameArms© 2014 DJI. All Rights Reserv ed. 

### 9 **Spreading Wings S900** User Manual
9. Connect the power cables to the center frame. Each cable must be screw ed into a positive (+) or negative (

- ) gold bracket. Each bracket wi ll have two cables of the same color screw ed into it. Red cables are positive and black cables are negative. 10. To ensure a reliable connection, rotate the screw until it is both tight and parallel to the connecting bracket.

11. Ensure all ESC cables, and power cables are correctly installed onto the center frame.



### ESC cables power cablesMountingFrameArms**Spreading Wings S900** User Manual



### 10 © 2014 DJI. All Rights Reserv ed. 12. Replace the round cover of the center plate, and re - tighten the 4 screws (M3×8 self

- tapping). Then replace the upper plate of the center frame, and re - tighten the 6 screw s (M2.5×8 cheese).

13. Double check all frame arms. Arms M1 and M2 are the forw ard facing (nose), arms M4 and M5 are the tail. Seen from the top, motors on arms M1, M3 and M5 rotate counter clockwise w hile those on arms M2, M4 and M6 rotate clockw ise.© 2014 DJI. All Rights Reserv ed. 

### 11 

# Mounting Electronics and **Wiring** Eight positions are reserved for mounting a flight control system, wi reless video transmission module, receiver, and other accessories. The DJI A2 flight control system has been used here as an example. If using an A2, follow mounting and wiring instructions found in the A2 flight control system user manual. If using the DJI WK

- M flight control system, please refer to the WK
- M user manual for connections. Also be sure the firmware on your DJI flight controller has been updated to the latest version. 

### Instructions 1. Attach IMU module to the IMU area of the center frame. Ensure that it points toward the nose. 2. Attach the PMU module to the center frame.

3. Mount the flight controller in the reserved position near the PMU module. Only mount the IMU in the IMU position of the center frame. 

### IMU

M 1 F 4 M2 LINK LED F3 S

M 1 M 2 M 3 M 4 M 5 M 6 M 7 M 8 LINK LED Reserved Position F 4 F 3 F 2 F 1 X 3 X 2 X 1 CONTROLLER UNIT S 2 S 1 A2 Flight ControllerMountingElectronicsandWiringCAN1CAN2CAN1CAN2ANTANT**Spreading Wings S900** User Manual



### 12 © 2014 DJI. All Rights Reserv ed. 4. Attach the GPS collapsible mount to the center frame using M2.5×8 screw s. 5. Mount a GPS module to the GPS mount wi th a bracket. Ensure the arrow points tow ard the nose and avoid catching your fingers in the bracket when folding for transportation.



### M1

M2

6. The other reserved positions are indicated in the diagram below and can be used for mounting a receiver, LED flight indicator, iOSD module and wireless video transmission module.MountingElectronicsandWiring**Spreading Wings S900** User Manual

© 2014 DJI. All Rights Reserv ed. 

### 13 7. Check that every anti

- drop screw has been firmly installed in the reserved positions. Thread locker is recommended. (1) Remove the anti

- drop screws to apply appropriate thread locker. (2) Replace and tighten. 8. Note that the dampers are 30° silicon rubber. If you use other dampers or vibration absorbing balls, the quality of your aerial photography may be affected.

Use glue to install the GPS bracket. Ensure it is firm and stable before every flight. Always test motors using the Assistant Software after installation. Refer to your flight control system user manual for details. Mount the GPS w ith a bracket to avoid interference from the center frame pow er board. dampersMountingElectronicsandWiring**Spreading Wings S900** User Manual



### 14 © 2014 DJI. All Rights Reserv ed. M 1 M 2 M 3 M 4 M 5 M 6 M 7 M 8 LINK LED F 4 F 3 F 2 F 1 X 3 X 2 X 1 CONTROLLER UNIT S 2 S 1 yellow **1 3** 

brow n **2** 

### Connecting the flight controller to the center frame 1. Connect the flight control system according to your flight control system user manual. 2. Connect the flight controller to the center frame with the connection cables. There are two kinds of connection cables. Choose the corresponding connection mode according to the connection cable in the box. **Using the**  **connector set:**  Plug in the connector set to the ESC signal outlet on the center frame. Then plug in the connector set to flight controller as shown below. (1) Yellow 4

- pin cables are for M1~ M4 connections. The yellow cable should be connected to M1. (2) Brow n 4

- pin cables are for M5~ M6 connections. The brow n cable should be connected to M5. (3) Black 4

- pin cables are for four continuous ground pins connections. M1~M4 are connected as the follow ing diagram show

s.



### M1

**M2**
**M1** 

### M3 **M2 M3**  

### M4 **M4** 

### M5 **M5** 

### M6 **M6**

A2 Flight Controller **Using the**  **3 -**  **pin connection cable:**  M1 through M6 correspond to each motor number. the ESC Signal Outlet

**M1 M2**  **M3 M4**  **M5 M6** 

the ESC Signal Outlet A2 Flight Controller 

## 3 **1** yellow



## 2 **M1 M**  **2 M**  **3 M**  **4 M**  **5 M**  **6** brow n

**M1 M**  **2 M**  **3 M**  **4 M**  **5 M**  **6** M M 1 1 M 2 M 2 LINK LED M 3 M M 3 4 M 4 M 5 M 6 M M 5 7 F 4 F 3 F 2 F 1 X 3 X 2 X 1 M 6 M 8 CONTROLLER UNIT S 2 S 1CAN1CAN2CAN1CAN2MountingElectronicsandWiringANTANT**Spreading Wings S900** User Manual

© 2014 DJI. All Rights Reserv ed. 

### 15 M 1 M 2 M 3 M 4 M 5 M 6 M 7 M 8 LINK LED F 4 F 3 F 2 **F** F 1 **1** X 3 X 2 X 1 CONTROLLER

UNIT S 2 S 1 M6 correspond to each motor number.

**M1 M2**  **M3 M4**  **M5 M6** 

WK M Flight Controller the ESC Signal Outlet 

### Connecting the flight controller and landing gear 1. Connect the left servo (betw een M3 and M4) cable to the “L” port of the landing gear control board. 2. Connect the right servo (betw een M5 and M6) cable to the “R” port of the landing gear control board. 3. For the A2 flight control system, connect the F1 port of the flight controller to the “IN” port of the landing gear control board. Other flight control systems connect a 2
- position channel receiver to the “IN” port.

Right Servo Connector Left Servo Connector

If right and left servo cables are reversed, the landing gear w ill not function properly. Connect all wi res carefully and neatly to avoid cable damage caused by frame edges. **IN R**  If using a DJI WK
- M flight controller, you must use the wires that came with the WK

- M. M1 through

**M1 M**  **2 M**  **3 M**  **4 M**  **5 M**  **6**

**R L IN** MountingElectronicsandWiringCAN1CAN2ANT

### 16 © 2014 DJI. All Rights Reserv ed. 

# Connecting XT60 Ports on the Center **Frame**
The bottom board is a power distribution board w ith three XT60 connectors for battery power. 

### Instructions 1. Connect the PMU power cable to the XT60 connector on top of the bottom board. 2. Connect the landing gear control board cable to the XT60 connector on the bottom of the bottom board. 3. Other connectors can supply pow er for other DJI devices, as required.



# Installing **Battery** Soldering battery connectors AS150 spark

- proof connectors are used. They must be soldered to your battery pow er cables. 1. Remove the original battery connectors. Avoid cutting the power and ground cables at the same time, as this can cause a short circuit. We recommend wr apping unsoldered cables wi th insulating tape to prevent accidental connections. 2. Pass the black ground wi re through the black housing. After passing the wire through, solder the female bullet connector to the ground wi re. Wait for the soldered connection to cool, then pull the housing back over the bullet connector. 3. Screw and pass the red pow er wi re through the red housing. After passing the wi re through, solder the male bullet connector to the pow er wi re. Wa it for the soldered connection to cool, and then screw and pull the housing back over the bullet connector.

Connectors soldering diagram 2S 6S V

- SEN 3V@5V X1

P M U PW (2VConnectingXT60PortsontheCenterFrame/InstallingBattery© 2014 DJI. All Rights Reserv ed. 

### 17 **Spreading Wings S900** User Manual

Connectors are soldered


### Installing and connecting battery 1. Attach battery to battery tray. Do not use an oversized battery. Maximum installation dimension is 80mm X 120mm X 200mm. 2. Connect the black connector and then the red connector to power on. Disconnect the red connector then black connector to pow

er off.InstallingBattery

### 18 © 2014 DJI. All Rights Reserv ed. 

# Setting Up the Landing **Gear** Using a 2
- position RC transmitter switch, landing gear retraction can be carried out remotely.
Setting up the transmitter Select a 2

- position sw itch (default setting is OK) as the control input for the landing gear. Ensure the corresponding receiver port is connected to the “IN” port on control board. For the A2 flight control system, connect the flight controller’s F1 port to “IN” port on control board.
Upper: Toggle the switch to this position to raise the landing gear.

Low er: Toggle the sw itch to this position to low er the landing gear.

If the transmitter sw itch has a FailSafe function, set the FailSafe value to the [Low er] position. This ensures that the landing gear w ill low er automatically w hen the receiver enters FailSafe mode. To avoid accidental switch triggering, slide levers or other controls can be used for landing gear control. 

### Usage procedures 1. Ensure transmitter and receiver batteries are fully charged. 2. Toggle the sw itch to the [Low er] position, and then turn on the transmitter. 3. Ensure the “R”, “L” and “IN” connections are correct. 4. Ensure the landing gear is in the [Lower] position, then power on the system. If a solid green LED on the landing gear control board lights up, everything is normal. If it flashes green slowly, re

- calibrate the system according to instructions in “Recalibrating Servo Travel”. 5. Toggle the switch to the [Upper] position ONLY AFTER takeoff. 6. Toggle the sw itch to the [Low er] position for landing.SettingUptheLandingGear**Spreading Wings S900** User Manual

© 2014 DJI. All Rights Reserv ed. 

### 19 When powering on the system, if the transmitter switch is in the [Upper] position, the LED will flash red quickly as a wa rning. Toggle the switch to the [Low er] position to continue. If there is an abnormal signal or no signal input into the “IN” port, the LED will slowly flash red. Check receiver and connections for problems. If servo pow

er consumption is too high, the LED wi ll light up red. If this lasts more than 4 seconds, the landing gear will lower and the LED will flash green slowly. Re
- calibration is needed before flying. A2 flight control system users can use the A2 Assistant to set intelligent gear on the “Advanced” page. Refer to the “A2 user manual” for details.


### LED Control Board Indicator

Calibration failed

— Solid yellow.

System calibrating Blinks slow yellow

.



### Landing Gear Specifications

Parameter Range Parameter Range Working Voltage 3S~6S (LiPo) Input Signal PWM (High

- Pulse Width 800us~2200us) Working Current Max 1A@6S Output Signal PWM (Mid Position is 1520us) in 90Hz Working Temperature

- 20~70° C Output Voltage 6V Total We ight 875g Servo Travel 150° (Minimum 120° ) Unsafe startup alert Blinks rapid red. Input signal abnormal Blinks slow green. Motor stalled

— Solid red. Enter calibration mode Blinks rapid yellow. Recalibration required Blinks slow green. Calibration required Blinks rapid green. System normal

— Solid green. Servo pow

er w ill shut off 3 seconds after the landing gear has reached its target position.SettingUptheLandingGear

### 20 © 2014 DJI. All Rights Reserv ed. 

# Mounting the **Gimbal**
Before assembling the gimbal, install the GCU as shown below. Be sure to install on the side as shown below. A DJI Z15
- GH4 (HD) gimbal has been used as an example in the following diagrams.

The connectors on gimbal should be removed for better performance, then the gimbal can be mounted to the lower connection points. Users of DJI Z15
- 5N / 7N gimbal, refer to the DJI Z15

- 5N / 7N Gimbal Mounting Notes (Page 21) for details.MountingtheGimbal**Spreading Wings S900** User Manual

© 2014 DJI. All Rights Reserv ed. 

### 21 Check that the system’s center of gravity is on the line as shown in the diagram below.



### DJI Z15

- 5N / 7N Gimbal Mounting Notes

legs (used w ith Z15

- 5N / 7N gimbal) to avoid damage and/or failure during the self

- test. Refer to the Part List Package No.34 (Page 31) for details. Follo w the Mounting the Landing Gear (Page 6) instructions to mount extended landing gear legs. Then the gimbal can be mounted as show n below

. Package No.34 is for users whose landing gear legs are 300mm. Users whose landing gear legs are 350mm have no need to purchase this part. Due to the size restriction of the Z15

- 5N / 7N gimbal, users should purchase extended landing gearMountingtheGimbal

### 22 © 2014 DJI. All Rights Reserv ed. 

# Ap **pendix** ESC Sound

Ready 1234567

-- B

-- B
Input signal abnormal B

- - - - - - - - B

- - - - - - - - B

...



## ESC LED

Standby Off
Motor rotating at full throttle position Solid Yellow On

DJI ESCs are specifically designed for multi

- rotors. Wh en used wi th DJI autopilot systems parameters and travel ranges do not have to be calibrated.


## Specifications

Frame Arm Length 358mm

Center Frame Diameter 272mm

Landing Gear Size 460mm(Length)×450mm(Width)×360mm(Height)

Stator Size 41×14mm

Max Power 500W KV 400rpm/V 

### Motor Center Frame Weight (w ith Landing Gear 1185g Mounting Base, Servos) Frame Arm We ight (w ith Motor, ESC, Propeller ) 316g 

### Frame Diagonal Wh eelbase 900mm Motor rotating Solid Red or Green On ESC State LED Input voltage abnormal B B

--- B B

--- B B

--- BB... Throttle stick is not at bottom BBBBBB... ESC State SoundAppendix**Spreading Wings S900** User Manual

© 2014 DJI. All Rights Reserv ed. 

### 23 Working Current 40A

Signal Frequency 30Hz ~ 450Hz

Weight (w ith Radiators) 35g

Material High strength performance engineered plastics

Weight 13g

Takeoff We ight 4.7Kg ~ 8.2Kg

Power Battery LiPo (6S,10000mAh~15000mAh,15C(Min))

Hovering Power Consumption 1000W (@6.8Kg Takeoff Weight)

Working Environment Temperature

- 10° C ~ 40° C



## Gain Value Settings

Flight Control Pitch 

### Basic Roll Yaw Pitch 

### Attitude Roll Vertical 

### A2 110% 

### 110% 120% 220% 220% 120% 

### Wo oKong

- M 160% 

### 160% 160% 190% 190% 100% Hovering Time 18min (@12000mAh & 6.8Kg Takeoff Weight) Max Power Consumption 3000W Total We ight 3.3Kg 

### Flight Parameters Size 15×5.2 inch 

### Foldable Propeller (1552/1552R) Drive PW M Frequency 8KHz Working Voltage 6S LiPo Weight (w ith Cooling Fan) 158g 

### ESCAppendix

### 24 © 2014 DJI. All Rights Reserv ed. 

# FA **Q** Soldering the ESC Be sure to solder the thick wires and fine wires correctly when soldering an ESC to the frame arm. Clockw ise (C

W) and counter clockw ise (CCW ) motors have a different arrangement of the colored wi res.

CCW arms CW arms


## Remounting the Propellers Instructions 1. Use two M3×12.3 screws and four washers to remount propellers. 2. Apply thread locker to the thread of the propellers mount first. 3. Affix screws with 4Kg ∙ cm (0.4N ∙ m) torque.

Refer to original screw

tensions if you are unfamiliar w ith torque measurements. Applying thread locker to the propeller mount first avoids getting thread locker into the holes of the plasti c propeller.



## Propeller Precautions Torque markers on the screw s and propeller covers w ill give you a visual cue to check w hether the propellers are loose. Check the torque markers before every flight. Loose screw

s cannot be securely locked w ith thread locker. Solder pad Blue Black Red Red Black Blue Thick wire Fine wire Fine wire Thick wire**G V** **G P** **G G** **P V** FAQ**Spreading Wings S900** User Manual

© 2014 DJI. All Rights Reserv ed. 

### 25 

## Using the Propeller Holder Instructions 1. Insert the propeller blades into the propeller holder. 2. Attach the propeller holder to the frame arm.



## Assembling Motor Vibration Absorbers A soft damper is part of the vibration absorber. Assemble soft dampers as show n below

. Assembly is the same for CCW and C W propellers.

Ensure all soft dampers and vibration absorbers are in good condition before every flight. If not, replace immediately. Otherwise, the flight performance of your aircraft will be adversely affected. Before installing the soft dampers, put the copper gaskets onto the four mounting holes on the carbon plate. Then put the soft dampers into the mounting holes. After tightening the screw s, the vibration absorbers may be tw isted. If this is the case, hold the motor with your thumbs under the base plate and fingers on the top carbon plate, and squeeze the plates together to make the vibration absorbers fla t and parallel with the plates.FAQ**Spreading Wings S900** User Manual



### 26 © 2014 DJI. All Rights Reserv ed. 

## Remounting the Landing Gear Servo Remounting servos is not recommended as they are pre - installed. 

### Instructions 1. Connect the left servo cable to the “L” port of the landing gear control board. 2. Connect the right servo cable to the “R” port of the landing gear control board. 3. Press and hold the SET button using a pin then pow er on. You wi ll see a yellow LED beside the SET button flashing quickly. Wait as servos complete position initialization. 4. Make sure the arm connecting to the servo is parallel to the link as show n in the follow ing diagram. 5. Assemble the left and right servos to the left (betw een M3, M4) and the right (betw een M5, M6) parts of the landing gear. Pow

er off.



### After Installation


## Recalibrating Servo Travel Instructions 1. Keep your hands aw

ay from all moving parts. 2. Ensure the “R”, “L” and “IN” connections are correct. 3. Keep the wh ole aircraft off of the ground during calibration, as landing gear will move. 4. Press and hold the SET button using a pin wh ile powering on, then release. An LED wi ll flash yellow quickly. Press the SET button again. Auto calibration will begin and the LED will flash yellow slowly. DO NOT obstruct any moving parts during auto calibration. 5. During calibration, the left landing gear w ill raise and low er, follow ed by the right landing gear. 6. After calibration, both the left and right landing gears wi ll be lowered and the LED wi ll display a solid green light. This indicates that the landing gear is wo rking properly.
If the LED is solid yellow after calibration, a problem has occurred. Carry out the instructions in “Remounting the Landing Gear Servo” then try again. Av oid obstructions during calibration. If the landing gear wa s obstructed, recalibration wi ll be required, per the above steps. If the “R” and “L” servo cables are reversed, travel will not be measured correctly. Fix the connections and recalibrate the landing gear using the above steps. Landing gear travel has been pre - calibrated. Mechanical adjustment of the gear travel is not recommended. **R L**  **IN**

To right servo To left servo To receiver channel (To F1 port if use A2) 

### Servo Connecting arm

Link

SET Button
LED© 2014 DJI. All Rights Reserv ed. 

### 27 

# Part **List**
If you require a replacement part, locate the part that you wi sh to replace in the follow ing tables. Then order the package that comes with the specified part. The numbering of the part is defined as follow:

S900 

# S9020101CCW CW as clockwise ; CCW as counter clock wise ; B as Balck ; R as Red ; G as Green 01

- Frame Arm ; 02

- Center Frame ; 03

- Landing Gear Package No. Package Part No.


### Frame Arm

M3x12.3 (hexagan)

S9012501CC W/ S9012502C W S9012102B/ S9012202R/ S9013701R/ S9013801B S9012503

S9012101B/ S9012201R M3x10.3 S9010801/ S9013501 S9010802 S9011001

M3x4.5
S9012902/ S9013002/ S9013102/ S9013202 S9012901/ S9013001/ S9013101/ S9013201 S9012301R/ S9012401G S9012903/ S9013003/ S9013103/ S9013203 S9010401CC WB / S9010501CC WR

/ S9010601C WB / S9010701C WR

S9012302/ S9012402

M3x12.3 (cheese) S9010402/ S9010502/ S9010602/ S9010702 S9010403/

S9010503/ S9010603/ S9010703

S9010404/ S9010504/ S9010604/ S9010704

4 

### S900 Frame Arm CCW

- Black S9010401CC WB , S9010402, S9010403, S9010404, M3×12.3 (cheese)

6 S900 Frame Arm C W

- Black S9010601C WB , S9010602, S9010603, S9010604, M3×12.3 (cheese)

8 S900 Motor Damping Unit S9010801, S9010802, M3×10.3 10 S900 Motor Mount Carbon Board S9011001, M3×4.5 7 S900 Frame Arm CW

- Red S9010701C WR , S9010702, S9010703, S9010704, M3×12.3 (cheese) 5 

### S900 Frame Arm CCW

- Red S9010501CC WR , S9010502, S9010503, S9010504, M3×12.3 (cheese) 

### Package No. Name Part No.PartList

### 28 © 2014 DJI. All Rights Reserv ed.

**Spreading Wings S900** User Manual



### 21 S900 4114 Motor with black Prop cover S9012101B, S9012102B, M3×4.5

23 S900 ESC with Red LED S9012301R, S9012302, M3×12.3 (cheese)

25 S900 Propeller Pack S9012501CCW , S9012502C W, S9012503, M3×12.3 (hexagan) 

### Center Frame

S9020301

M2.5x8 (cheese)
S9021502

S9021503/ S9032703
M3x6.5
S9021501

S9020901 S9020302 M3x8 (self

- tapping)

S9021201L

S9021203/ S9021101 S9021202R

S9021401 M2.5x8 (cheese)

M3x6.5 

### 24 S900 ESC with Green LED S9012401G, S9012402, M3×12.3 (cheese) 22 S900 4114 Motor with red Prop cover S9012201R, S9012202R, M3×4.5PartList© 2014 DJI. All Rights Reserv ed. 

### 29 **Spreading Wings S900** User Manual 

### Package No. Name Part No. 3 

### S900 Lock Knob S9020301, S9020302, M3×8 (self

- tapping) 9 

### S900 Center Frame Support Pillar S9020901, M2.5×8 (cheese) 12 S900 Arm Mounting Bracket S9021201L, S9021202R, S9021203, M3×6.5 14 S900 Center Frame Bottom Board S9021401, M3×4.5 (cheese), M3×8 (self



### tapping), M3×6.5, M3×5.5 15 S900 Center Frame Top Board S9021501, S9021502, S9021503, M3×6.5, M2.5×8 (cheese) 11 S900 Frame Arm Mounting Steel Shaft S9021101


### Landing Gear

M3x4.5
S9031902
S9031814 S9031815 M3x6.5 S9031901 M2.5x13 S9031604/ S9033306 S9031602/ S9033303 S9033301 S9033302 S9031603/ S9033305 S9031601/ S9033304 S9031605/ S9033307 M2.5x5 M2.5x8 (cheese) S9033308 S9033309 S9033310 S9033311 S9033312 S9032605 M2.5x10 (socket cap)

S9031808 S9031809 M1.6x5 S9031810 S9031811 S9031812 S9031712 S9031903 M3x6.5 S9031904 S9031905

S9031701

S9030201 S9033313 S9033314
S9031801

M3x8 S9031802 S9031803 S9031804 S9031805 M2.5x8(cheese) S9031806 S9031713/ S9031813 M2.5x8 (socket cap) S9032601 S9032602 M2.5x8 (socket cap) (1) S9031807 M3x6.8 S9032001 S9032002

S9032603 S9032606 M3x22 (socket cap) S9032604 Caution (1) Parts within th e dotted box are mirrored against each other. Except for S9031814 and S9031815.PartList

### 30 © 2014 DJI. All Rights Reserv ed.

**Spreading Wings S900** User Manual

16 

### S900 Gimbal

Damping Bracket S9031601, S9031602, S9031603, S9031604, S9031605,

M2.5×5, M2.5×13

18 S900 Retractable

Module (Left) S9031801, S9031802, S9031803, S9031804, S9031805,

S9031806, S9031807, S9031808, S9031809, S9031810, S9031811, S9031812, S9031813, S9031814, S9031815, M1.6×5, M2.5×10 (socket cap), M2.5×8 (cheese), M2.5×5, M3×8, M3×4.5, M3×6.8

20 S900 Landing Skid S9032001, S9032002

2 S900 Battery Tray S9030201



### Miscellaneous

S9032701

S9032702 S9013601 S9020201 S9020202

S9020103 S9020104

Caution: This part is used with Z15

- 5N / 7N gimbal. S9033401 

### 33 S900 Gimbal

Mounting Accessories S9033301, S9033302, S9033303, S9033304, S9033305,

S9033306, S9033307, S9033308, S9033309, S9033310, S9033311, S9033312, S9033313, S9033314, M2.5×5, M2.5×13, M2.5×8 (cheese) 26 S900 Landing Gear S9032601, S9032602, S9032603, S9032604, S9032605,

Leg S9032606, M2.5×8 (socket cap), M3×22 (socket cap) 19 S900 Gimbal

Damping Connecting Brackets S9031901, S9031902, S9031903, S9031904, S9031905,

M2.5×5, M3×6.5 17 

### S900 Retractable

Module (Right) S9031701, S9031702, S9031703, S9031704, S9031705,

S9031706, S9031707, S9031708, S9031709, S9031710, S9031711, S9031712, S0031713, M1.6×5, M2.5×10 (socket cap), M2.5×8 (cheese), M2.5×5, M3×8, M3×4.5, M3×6.8 

### Package No. Name Part No.PartList© 2014 DJI. All Rights Reserv ed. 

### 31 **Spreading Wings S900** User Manual 

### Package No. Name Part No. 13 S900 Center Frame Package 3, 9, 12, 14, 15 29 S900 Complete Arm [CW

- RED] Package 7, 8, 10, 11, 22, 23, 25, S9012901, S9012902, S9012903 30 S900 Complete Arm [C W

- Green] Package 6, 8, 10, 11, 21, 24, 25, S9013001,

S9013002, S9013003 31 S900 Complete Arm [CC W

- RED] Package 5, 8, 10, 11, 22, 23, 25, S9013101,

S9013102, S9013103 32 S900 Complete Arm [CC W

- Green] Package 4, 8, 10, 11, 21, 24, 25, S9013201,

S9013202, S9013203 27 S900 GPS Holder S9032701, S9032702, S9032703, M2.5×8 (cheese) 28 S900 Screw Pack Assorted screw s 1 S900 Pow er Cord Plug S9020101, S9020102, S9020103, S9020104 34 S900 Extended Landing Gear Leg S9033401 35 S900 Rubber Damper for 4114 Motor S9013501, M3×10.3 36 S900 Propeller Holder S9013601 37 S900 4114 Motor

- Red Prop Cover S9013701R, M3× 12.3 (hexagan) 38 S900 4114 Motor

- Black Prop Cover S9013801B, M3× 12.3 (hexagan) 

# FCC **Statements**
This equipment has been tested and found to comply wi th the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference wh en the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance wi th the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in wh ich case the user wi ll be required to correct the interference at his own expense.FCCStatementsYou may visit DJI offical website to obtain the latest version of user manual.

User manual is subject to change without prior notice.


### http://www.dji.com/product/spreading

- wings

- s900

© 2014 DJI. All Rights Reserved.