dji S800 User manual

©2012 DJI Innovations. All Rights Reserved. 1
Retractable Landing Gearfor Spreading Wings S800 V 1.2
2013.01.24 Revised
Introduction
The retractable landing gear is designed for the S800 frame in order to provide a better perspective in
aerial-filming / photography work. By using a 2-position switch channel of the R/C transmitter, you can
control the landing gear to retract remotely. The retractable landing gear will not block the view of the
camera lens, making smooth shooting in all directions possible.
Disclaimer & Warning
Thank you for purchasing this DJI product. Please regularly visit the S800 web page at
www.dji-innovations.com. This page is updated regularly. Any technical updates and manual corrections will
be available on this web page. Due to unforeseen changes or product upgrades, the information contained
in this manual is subject to change without notice.
Please strictly follow the manual to assemble and use the retractable landing gear. As DJI Innovations has
no control over use, setup, final assembly, modification or misuse, no liability shall be assumed nor accepted
for any resulting damage or injury. By the act of use, setup or assembly, the user accepts all resulting
liability. DJI Innovations accepts no liability for damage(s) or injuries incurred directly or indirectly from the
use of this product.
DJI and S800 are registered trademarks of DJI Innovations. 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 Innovations 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 Innovations. No patent
liability is assumed with respect to the use of the product or information contained herein.
©2012 DJI Innovations. All Rights Reserved. 2
Assembly & Connection
The part with the control board attached is defined as left, the other part is right. Make sure to make a
distinction between the left and the right servos.
STEP1 Servo Installation (If the servos have already been installed, please skip this step.)
1. Define and mark two HS-7954SH servos from Hitec as left servo and right servo.
2. Connect the left servo to the [L] port on the control board, and the right servo to the [R] port.
3. Keep pressing the SET button with the aid of a small tool, and then power on. You will see the yellow
LED flashes quickly, and then wait until the servos have finished their position initialization.
4. Make sure the servo arm is parallel to the servo’s center line (shown in the following Fig).
5. Power off, and assemble the left and right servos to the left and the right parts of the landing gear.
Tips: If you use your own servos, it is recommended to use dedicated programmer from Hitec to enlarge
the servo travel from 120° to 150°, and then install servos by the above steps. Servos from DJI have been
enlarged servo travel.
STEP2 Mechanical Assembly
1. Assemble the left and the right parts respectively, and then fix the screws at the joints with appropriate
screw thread lock.
2. Connect the left and right parts with the connecting rod.
3. For safety reasons, make sure to connect the springs to both parts.
4. Assemble the battery Bracket, referring to the “S800 User Manual”.
STEP3 Electrical Connections
1. Plug the cables from the servos into the correct ports on the control board. Make sure the right servo is
connected to the [R] port, and the left servo to the [L] port.
2. Connect the required 2-position switch channel of the R/C receiver to the [IN] port.
ControlBoard
RIN
L
Servo
Arm
CenterL ine
Servo
ServoArmInstallation
Finished
ServoAssembly
Right art of the anding ear P   L G
LeftS ervo
RightS ervo
DANGER！！！
DONOTTOUCH!
LeftServo
RightServo
SETButton
LED
ReceiverChannel
Left art of the P   L G anding ear
GimbalF D ront irection

©2012 DJI Innovations. All Rights Reserved. 3
Travel Calibration
If the Landing Gear you got has been installed with the servos, please skip this step. Otherwise, calibrate the
system using the following procedure.
1.For safety reasons, please keep your hands away from any link mechanism to avoid injury.
2.Make sure the [R], [L] and [IN] connections are correct and firmly connected.
3.Hand the Landing Gear in the air during calibration, as the landing gear will move.
4.Keep pressing the SET button using a small tool and power on. You can see the LED flashes YELLOW
quickly, and then press the SET button once again. The system begins auto calibration with the
indication of the LED flashing YELLOW slowly. DO NOT obstruct any moving part during auto
calibration.
5.First the left-part is calibrated, the left link mechanism first moves up then moves down automatically.
Then the right-part is calibrated, the right link mechanism first moves up then moves downautomatically.
6.After calibration, both left and right parts are in the [Lower] position, and the LED is on solid GREEN.
Then the landing gear will work normally.
Notes:
If the LED is on solid YELLOW when calibrating, then it means that there is something wrong with the
calibration, please re-do the Servo Installation of the Assembly & Connection section, since the servo
arm might be installed with a wrong angle.
Please avoid any obstruction when calibrating. If the landing gear is blocked from moving, please
recalibrate the landing gear by the above steps.
If the [R] and [L] servo cables are reversed, the travel will not be measured correctly. Please connect
correctly and recalibrate the landing gear using the above steps.
If the LED flashes slowlyGREEN after power on, please re-calibrate the system using the above steps.
R/C Transmitter (TX) Setting
Select a 2-position switch channel (default setting is OK) on the
TX as the control input of the landing gear, and then make sure
the corresponding port of the receiver is connected to the [IN]
port on the control board.
Fig. 1
Fig. 2
Tips:
If the switch channel on the TX has fail-safe function, set the fail-safe value to [Lower] position, so that
the landing gear will be in [Lower] status when the receiver enters fail-safe, to land the aircraft safely.
To avoid false switch triggering, you can use the slide lever or other trim as the landing gear’s control
switch.
Retracted：Toggle the switch
to this position to retract the
landing gear (Fig.1)
Lower：Toggle the switch to
this position to lower the
Landing Gear (Fig. 2)
©2012 DJI Innovations. All Rights Reserved. 4
Usage
The landing gear can be used by following the steps below after assembly & connection.
1. Make sure the transmitter & receiver batteries are fully charged.
2. Toggle the switch to the [Lower] position, and then turn on the transmitter.
3. Make sure the [R], [L] and [IN] connections are correct and firmly connected.
4. Make sure the Landing Gear is at the [Lower] position, and then power on the system. If the green
LED is on solid, then this is a normal start. If the LED will flash GREEN slowly, please re-calibrate the
system according to the procedure of Travel Calibration.
5. Make sure to toggle the switch to the [Retracted] position onlyAFTER you takeoff the aircraft.
6. When the aircraft is landing, please toggle the switch to the [Lower] position for a safe landing.
Tips
The system will turn off the servo power temporarily within 3 seconds after the landing gear has
reached the target position.
When powering on the system, if the TX switch is in the [Retracted] position, which is the unsafe signal
for the landing gear, the LED will quickly flash RED. Please toggle the switch to the [Lower] position.
If there is an abnormal signal or no signal input into the [IN] port the LED will slowly flash RED. Please
check the receiver and the connections.
If the power consumption of the servos is too large when in use, the LED will be on solid RED. If this
status lasts more than 4 seconds, the landing gear will lower and the LED will flash GREEN slowly.
Please re-calibrate the system.
LED Indicator
System works normally
Hasn’t been calibrated
Need re-calibration
Wrong calibration
Enter the calibration mode
System is calibrating
Motor stall
Input signal is unsafe when power on the TX
Input signal is abnormal
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(Neutral Position is 1520us) in 90Hz
Working Temperature -20~70oC Output Voltage 6V
Total Weight 875g Servo Travel 150o (Minimum120o)

©2012 DJI Innovations. All Rights Reserved. 5
Spare Parts List
S8033401
S8033501
S8033701
S8033801
S8031601
S8032001
S8031604
S8034501
S8034601
S8034801
S8034901
S8035001
S8035002
S8035101
S8035201
S8035301
S8031501
S8031502
S803 0515
S803 0315
S803 0415
S803 0615
S8031507
S8031506
S8031507
S8032201
S8032202
S8032204
S8032203
S8031505
S8031506
S8031505 S8031507
(2)
S8031603 S8031604
(1)
HC _ M2 5x10 .
M3 0x6 7x1 3x1 ...
M2 5x5x1 3x1 ..
HC M2 5x8 _.
HC M3 0x22 _.
M3 0x6 7x1 3x1 ...
HC M3 0x8 _.
M
2
5x5x
13
x
1
..
S8031602
S8031603
S8031801
S8031901
Note: (1) Left and right T-Frame are different; (2) Left set, middle set and right set of carbon tube bracket are
different.
NO. Name Components
34 Retractable Module(Left) S8033401、S8033801、M2.5X5X1.3X1、
M3.0X6.7X1.3X1
35 Retractable Module(Right) S8033501、S8033801、M2.5X5X1.3X1、
M3.0X6.7X1.3X1
39 Screw Package HC_M3X8、HC_M2.5X8、HC_M3X22、HC_M2.5X5、
M2.5X5 X1.3X1、M3.0X6.7X1.3X1、M2.5X8
51 HITEC Servo(Left) S8035101、HC_M2.5X10
©2012 DJI Innovations. All Rights Reserved. 6
53 HITEC Servo(Right) S8035301、HC_M2.5X10
56 Spring S8033701、S8033801、S8034501、M3.0X6.7X1.3X1
57 Control Board Module S8034801、S8034901、S8035201、M2.5X5X1.3X1
58 H Frame S8034601、S8035001、M3.0X6.7X1.3X1
16 T-Frame(Right) S8031601、S8031602、S8031603
17 T-Frame(Left) S8031601、S8031602、S8031604
18 T-Frame Nonslip Damper (4pcs) S8031801
19 T-Frame Silicone Rubber Damper
(4pcs) S8031901
20 Bi-pod Carbon Tube S8032001
22 Battery Tray S8032201、S8032202、S8032203、S8032204、
M2.5X5X1.3X1
23 Carbon Tube Bracket(Left Set) S8031501、S8031502、S8031503、S8031504、
S8031505、HC_M3X8
24 Carbon Tube Bracket(Middle Set) S8031501、S8031502、S8031503、S8031504、
S8031506、HC_M3X8
25 Carbon Tube Bracket(Right Set) S8031501、S8031502、S8031503、S8031504、
S8031507、HC_M3X8
Note: The parts from 16 to 20 and 22 to 25 are the same as the product of S800.