DJI S900 User Manual

Spreading Wings S900

User Manual

2014.08

V1.0

Disclaimer

Thank you for purchasing the S900. Please visit the Spreading Wings S900 page on www.dji.com regularly to keep up to date with product information, technical updates and manual corrections. Information in this manual is subject to change without 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 certication. In a domestic environment this product may cause radio

interference, in which 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 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.

About

The S900 is designed for professional aerial photography and cinematography. It is user friendly, safe, stabilized and easy to fly while 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 view from the camera. A patented power distribution board, built-in high-speed ESCs

and motors with high efciency propellers ensure dynamic stability and maximized power efciency. Used with a professional DJI multi-rotor autopilot system, the S900 can hover and y reliably making it ideal for

photography and cinematography.

12 6mm

305mm

433mm

Disclaimer

About

Contents

Cautions

Legend

In The Box

Mounting the Landing Gear

Mounting Frame Arms

Mounting Electronics and Wiring

Connecting XT60 Ports on the Center Frame

Installing Battery

Setting Up the Landing Gear

Mounting the Gimbal

Appendix

ESC Sound 22

ESC LED 22

Specications 22

Gain Value Settings 23

FAQ

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

FCC Statements

Cautions

When ying, the rotating propellers may cause serious damage and injury. Please y safe at all times.

Assembly Cautions

1. Use a bracket to mount the GPS module on the center frame to avoid interference with the power board.

Cautions

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 downwards and away from obstructions to avoid signal loss.

4. Ensure frame arms are mounted correctly.

a) Motor mounts with CCW marks should be mounted to the center frame positions with the following

marks: M1, M3 and M5.

b) Motor mounts with CW marks should be mounted to the center frame positions with the following

marks: M2, M4, and M6.

5. Do not remove any glued-in screws.

6. Screws that already have blue glue can be used once without thread locker. On other occasions, apply appropriate thread locker rst.

7. The S900 should be lifted off the ground when testing landing gear or recalibrating servo travel.

Flight Cautions

1. ESCs are not water-proof, please do not y in rain or snow.

2. Ensure all soft dampers and vibration absorbers are in good condition before every ight. If not, replace immediately. Otherwise, the ight performance of your aircraft will be adversely affected.

3. Ensure all parts are in good condition before each ight. Do not y with worn or broken parts.

4. Ensure propellers and motors are installed correctly and propellers are unfolded before ying.

5. Ensure ESC signal connectors and power cable connectors are tight before every ight.

6. When ying, 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 ight control system to avoid damage or injury.

9. Do not overload the system.

10. Do not get close to or touch motors or propellers when they are spinning as this can cause serious injury.

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.

Others

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

Legend

Important Hints and Tips

In The Box

Center Frame ×1 Frame Arms ×6

In The Box

Landing Skid Tubes ×2

Landing Gear Legs ×2

(with Silicone Rubber Dampers)

GPS Collapsible Mount ×1 Springs ×2

Connector Set ×1 3-PIN Servo Cable ×1

Screw Package ×1 Accessories Package ×1

For frame arms mount: M4×35 For landing gear mount: M3×8, M2.5×8 (socket cap), M3×22 (socket cap)

CW propellers ×2 CCW propellers ×2 Magic tapes ×4 The red knobs ×6 Landing gear leg rings ×4 Soft dampers ×50

Tools Required

Tools Usage

2.0mm Hex Wrench, 2.5mm Hex Wrench Mounting screws.

Thread Locker Fastening screws.

Nylon Cable Tie

Binding devices and wires.Scissors

Cutting Pliers/Dykes

Foam Double Sided Adhesive Tape Mounting receiver, controller and other modules.

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. Afx in place with M3×8 screws.

4. Connect both springs on the legs to the center frame.

Mounting the Landing Gear

M2.5×8

(socket cap)

Note the springs are 58.5mm before connecting to the center frame, and are stretched to 70mm

when mounting is completed.

It is recommended that the landing gear leg ring be placed about 30mm above the landing skid tube.

70mm

30mm

Mounting Frame Arms

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 rmly and rotate freely.

(3) Mount all arms with red propeller covers to M1 and M2 to indicate the nose of the S900. (4) Identify the CW and CCW marks on the arms. Mount the arms with the CCW mark to the M1, M3 and

M5 positions of the center frame. The arms with the CW mark should be mounted to the M2, M4 and M6 positions of the center frame.

PropellerCover

Screw Mount Power Cable

ESC Signal Cable

Screw

Motor

ESC

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.

CW or CCW Mark

LED*

*LED is on after motor started.

Mounting Frame Arms

Spreading Wings S900

5. Gently lift the frame arm.

6. Twist the red knob to lock each arm in place. Be sure there is an audible click, which indicates a proper lock. Check the arm for movement. To store, untwist the knob and lower the frame arm.

Mounting Frame Arms

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

User Manual

Spreading Wings S900

9. Connect the power cables to the center frame. Each cable must be screwed into a positive (+) or negative (-) gold bracket. Each bracket will have two cables of the same color screwed 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.

User Manual

Mounting Frame Arms

ESC cables

power cables

Spreading Wings S900

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 screws (M2.5×8 cheese).

13. Double check all frame arms. Arms M1 and M2 are the forward facing (nose), arms M4 and M5 are the

tail. Seen from the top, motors on arms M1, M3 and M5 rotate counter clockwise while those on arms M2, M4 and M6 rotate clockwise.

User Manual

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