dji XP3.1 User Manual
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dji XP3.1 User Manual

dji XP3.1 User Manual

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DJI XP3.1 Standard Manual
V 1.01
DJI Innovation Technology
Address: Room 1205, Business Park
Shenzhen University-town, Lishan Rd,
Nanshan District, Shenzhen, Guangdong,
P.R.China
P.C:518000
Tel: 0755-83067827
Fax:0755-83067370
URL: http://www.dji-innovations.com/
Email:info@dji-innovation.com
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  • Page 1 DJI XP3.1 Standard Manual V 1.01 DJI Innovation Technology Address: Room 1205, Business Park Shenzhen University-town, Lishan Rd, Nanshan District, Shenzhen, Guangdong, P.R.China P.C:518000 Tel: 0755-83067827 Fax:0755-83067370 URL: http://www.dji-innovations.com/ Email:info@dji-innovation.com...

  • Page 2: Table Of Contents

    Contents PREFACE ............................4 1 INTRODUCTION...........................4 1.1 F ......................4 UNCTION NTRODUCTION 1.1.1System Features .....................4 1.1.2 Hardware System ....................5 1.1.3 Control Mode......................5 1.2 S ......................7 YSTEM EQUIREMENT 2. SYSTEM............................9 2.1 S ......................9 YSTEM RAMEWORK 2.2M ......................10 ODULE NTRODUCTION 2.2.1Main Controller ....................10 2.2.2 Adapter .......................10 2.2.3 GPS &...
  • Page 3 C: M ..................44 PPENDIX ECHANICAL ROPERTIES D: M ..................45 PPENDIX ECHANICAL RAWING E: P ....................48 PPENDIX ACKAGING F: S ....................48 PPENDIX AFETY HECK...

  • Page 4: Preface

    Under the locked altitude, with the help of XP 3.1, operators can easily control the helicopter to do the turn-coordination. Amend errors raised between hovering and flying automatically. The main differences between DJI XP3.1 and the stability augmentations stem based on CCD sensor: DJI XP3.1 can to any altitude within the remote...

  • Page 5: Hardware System

    control smoothly, without the height and surface texture restraints. No frequent switching between various modes, the speed can be accreted to 0.1m/s or less. Automatically turn into hovering state when receiver signal is lost (enter the Fail Safe mode). 1.1.2 Hardware System Improve the accuracy and real-time performance of the controller by using 2 separate DSPs (digital signal processor) to calculate altitude and control algorithm.
  • Page 6 helicopter enter auto-hovering in a short time. After entering autopilot mode, the flight speed is in proportion to the volume of RC stick ○ 2 When the RC stick is pushed to the limit, the corresponding maximum flight speeds are as followings: Forward-Backward Left-Right Up-Down...

  • Page 7: System Requirement

    1.2 System Requirement Applicable to electrical and gas/fuel powered Helicopter Types helicopters Ordinary mode 1_Servo_Norm CCPM 3_Servo_120° Swash Types 3_Servo_140° CCPM mode 3_Servo_90° 4_Servo_90° 7 channels or more Remote Controller All channels have the Fail Safe function ○ 1 System Operating -10 ~ +70℃...
  • Page 8 ：Engine governor such as GV-1 or RPM lock-able motor drivers are required to maintain a constant rotor RPM and XP3.1 will leave the Thro channel in the original position in the autonomous mode. ：PCM or 2.4 G receivers has Fail Safe function, but PPM Do not.

  • Page 9: System

    2 System 2.1 System Framework Gyro Stable P&T Ext. ports Compass &GPS Servo SD Card Adapter Main Controller Gyroscope Wireless Power GV1/ESC. Receiver Note： ■Black: Normal configured mode ■Blue: Optimal configured mode ■Brown: User-configured mode...

  • Page 10: Module Introduction

    2.2Module Introduction 2.2.1Main Controller Main Controller, which calculates the flight attitude and control the helicopter’s flight by sending orders to Adapter under autopilot mode, is the heart of the control system. Figure 2. 1 Main Controller 2.2.2 Adapter Adapter acknowledges signals from RC receiver, process controlling signal and control the servo operation with cooperation of Main Controller.

  • Page 11: Gps & Compass

    2.2.3 GPS & Compass External GPS and compass are integrated in one box. Both of them must be placed far away from interference. It is used to receive GPS signals and direction signals, and send them to Main Controller. Figure 2. 3 GPS&Compass Figure 2.

  • Page 12: System Installation And Adjustment

    3 System Installation and Adjustment Users should dedicate special circumspection and patience to the installation, adjusting, flying and maintenance of the system. Any improper operation may lead losses of helicopter, life or property. Please pay special attention to the following steps and introductions of installation and adjustment. Do not try to skip any step.
  • Page 13 Figure 3. 2 Figure 3. 3 (Figure 3.4) Make Main Controller box frame the same direction as the helicopter frame, which means the side with two DB ports faces the head of the heli, corresponding to the “Forward” set by the [Install Parameters] in XP configure(adjust software).
  • Page 14 Attention： For the helicopter with gasoline engine and electric motor, the minimum distance between the Main Controller and the engine/motor is 10cm; but for the heli with methanol machine, one does not need to consider the distance between them. The distance between the Main Controller and the center of gravity should be close enough, the shorter the better.

  • Page 15: Adapter Installation

    Adapter】 ： Connect them by DB 15 cable (Figure protect DB15 cable and 3. 8), which matches DJI XP3.1. The clasp of DB avoid long-time friction, 15 cable must be locked (Figure3. 9 DB15 open which may leads status) (Figure3. 10 DB15 closed status). The short-circuit or open- looseness of DB15’s clasp must be avoided.
  • Page 16 The routing should not be pulled to tightly (Figure 3. 11) longer wire in advance is preferred and. Do not constrain the DB15, which links to the port of the Main Controller. Keep it reflex to avoid affecting the attitude of the Main Controller or reducing the efficiency of isolators.
  • Page 17 Note: ○ 1 : Autopilot/ manual channel ○ 2 : Gyro sensitivity channel Connection schematic diagrams： Figure 3. 15 Figure 3. 16 Attention： JR and Futaba RC receivers are promoted, No other links because in this manual we set them as except input wires of examples.
  • Page 18 Figure 3. 17 Figure3. 18 3-servo Swash Figure 3. 19 4-servo Swash Attention： Power supply of the Servos and the control system are two mutually independent and different ones. The Servos are supplied by power source of 4.8v battery and is inserted in the BATT port. Please install a switch between the servos’...
  • Page 19 (professional edition matching) and so on. No. 1 port is the input port for GPS & Compass signal (Figure 3. 24). The upper surface (DJI trademark surface) of GPS & Compass should be upward. It should be laid flat in the...
  • Page 20 coincident direction of the coordinate frame on box and one of the helicopter (output wire points to the head of helicopter). No occluded objects are allowed around. It should be installed at the half of the tail pipe approximately, and let it be far away from the servo.(Figure 3.25) Figure 3.

  • Page 21: System Parameters Tuning And Setting

    3.2 System Parameters Tuning and Setting If users follow the above installment process, then you should finish the connection of the hardware. Now we will start the parameter tuning and the setting by software. 3.2.1 Tuning Preparation 【Software Installation】 ： Please install the USB to Serial Port Cable driver. exe of the ancillary CD and XP Configure 1.20(system parameters tuning software) 【Power and Connection】...

  • Page 22: Completion Of The First Test Flight Adjustment By Software Wizard

    please alter the swash type in remote controller to helicopter-Normal one. That’s means, each servo link to the swash plate independently. Note： ○ 1 ：JR RC: Choose NORM in SWASH TYPE Futaba RC: Choose HELICOPTER, H-1 in PARAMETER 【Autopilot Switch Setting】 ：Users need to set a two-position self-convenient switch on RC as the autopilot switch to switch between manual mode and autopilot mode Attention：...
  • Page 23 Figure 3. 29 Attention： Please don’t turn on the servo power in case of being burnt out because of the locking braking. STEP1. 【Main Controller and GPS Offset Setting】 After entering the first interface, click “next” to enter Main Controller and GPS offset setting interface (Figure 3.
  • Page 24 2） the Offset of the Main Controller Installation Offset: offset is the coordinate value of the target object in a coordinate frame which is an x-y-z coordinate frame with the helicopter’c. g. ○ (center of gravity) the origin point. For example, if the Main Controller is laid at point A, A’s coordinate value is the offset of Main Controller (Figure 3.
  • Page 25 3） If GPS antenna is laid at Point B, then B’ coordinate value is the offset of GPS (Figure 3. 32). As for the same reason, users can get GPS offset by the position of GPS installation. If users install it at the point of 1/2 length of the tail pipe approximately, the offset values of y and z is usually 0.
  • Page 26 Figure 3. 33 3） Users should find out the autopilot/manual switching channel(if you follow the above tips strictly, they should be channel 5 or 7, corresponding JR or Futaba remote controller) to enter TRVL ADJ setting of remote control. Reduce its max value, and users could notice the slide approaches to the red line or green one gradually.
  • Page 27 Figure 3. 34 Attention: If JR remote controller is adopted, the TRVL ADJ setting value should be about 80%, While in Futaba being 60% more or less. Moreover, if FUTABA remote controller is adopted, slide movement can be noticed by reducing fewer than 80%.
  • Page 28 Figure 3. 35 Figure 3. 36 If it is CCPM mode (Figure 3. 36), parameters of swash mix and Servo direction should be set correctly. First turn the TRAV ADJ (End Point) of every channel of control stick which controls PITCH, AILE, RUDD, ELEV to the maxima. Check if the setting of swash type is NORM mode in remote controller.
  • Page 29 swash plate moving horizontally, that means every servo lets the swash plate down coordinately. not, click “NORM””REV” buttons to adjust the direction of Servo. Push PITCH stick, the forward and backward movements correspond the changes of collective pitch of main rotor. If the direction is opposite, change the sign of PITCH in swash mix.
  • Page 30 Note：○ 1 : No “Kaka” sound from Servo. Adjust the minimal collective pitch to -2 °,maximal one to 10-11 (guarantee the corresponding climbing speed more than 3m/s) and median one 5 by the software and PITCH curve in remote controller. Click “next”...
  • Page 31 Figure 3. 39 Figure 3. 40 Attention： Make sure the duration of the stick at the endpoint more than 2 seconds. Users push the stick and check if the directions of stick is the same as shown in software.(stick to left or upward corresponds the slide shown in software moving upward;...
  • Page 32 left-right; throttle: up- down. If the directions are inconsistent, users need to re-calibration corresponding channels. Switch back to the manual mode and withdraw the test. Figure 3.41 Switch the remote controller to auto The correctness of mode(or the prompt box as above will 《Feedback test》and appear) 《Controller Orientation...

  • Page 33: Outdoors Flying Adjustment

    4 Outdoors Flying Adjustment Please read through this chapter before flying outdoors. Peruse 【4.5 Points for Attention in Flying】 before flight. Please operate carefully to avoid any accident！ 4.1 Helicopter Flying Adjustment and Test under Manual Mode Test the RC antenna’s radio distance: take The main purpose is down the main blades and turn on the to get the optimum...

  • Page 34: Fail Safe Setting

    Set other channels as hovering center points in he fail safe option of remote control, to make it convenient for XP3.1 to supervise if the communication of remote control is normal and respond in time. To observe if the green LED Status Indicator will flash after turning off the remote controller.

  • Page 35: Flight Test Under Autopilot Mode

    The helicopter turns backward frequently and the orange indicator starts to glitter (but it is normal occasionally). DJI-XP3.1 is not suitable to work in Antarctic Circle or Arctic Circle, because the magnetic heading system will be invalidation or near to it.

  • Page 36: Setting Meanings And Related Regulation Methods Of Parameters

    4.4.1 Setting Meanings and Related Regulation Methods of Parameters The parameter of autopilot is on the first page of XP configure software “control gain”, as shown in Figure 4. 1. At present, 4 parameters on software layout are opened for tuning. Roll_Gain is the parameter to adjust the roll direction(right-left)movement of helicopter, as shown in Figure 4.
  • Page 37 Special Tips： The tuning of these four values is similar to the tuning of sensitivity of helicopter’s tail gyro. If the value is too big, high frequency shaking in according direction will occur. If the value is too small, it cannot lock the position in this direction and drifts cyclic slowly.

  • Page 38: Flying Test

    above. Normal status： When parameter tuning is proper in every direction, helicopter may hover stable (refers to the video). Users can try to pull the sticks of every direction orderly (one scale is suggested) to perceive the acceleration and the stable level in the process of stopping.

  • Page 39: Flight Success

    Please check if the helicopter is adjusted as ordinary RC-helicopter. This time, users need to carry out the operations from the step of 【4.1 Helicopter Flying Adjustment and Test under Manual Mode】. 4.4.3 Flight Success: Congratulations! If you reach this step successfully, it means your helicopter can work normally.

  • Page 40: Flying Attention Points

    【 Sparkling 】 ： Strong signals. Taking off is Never try to switch allowed, but the safety coefficient decreases, to autopilot mode when so users should avoid flying as possible as you the red LED is flashing. can. 【 Flash 】 ： Weak signals.
  • Page 41 After the helicopter hovering by manual-control, switch to the auto mode. Followings are some possible problems and solutions： 【Stick’s offset from center is not big】 ： Its influence to the system is small. The system can revise by itself. 【stick’s offset from center is big and the helicopter has the drifting tendency】...

  • Page 42: Landing Explanation

    flight. It may happen only when it is bumped or it rotates with a high speed (4 seconds or less per circle) for a long time. Avoid rotation continuously for a long time, for instance: it rotates for more than 3 circles continuously and the speed surpasses 4 seconds per circle.

  • Page 43: Appendix

    3 Appendix Appendix A: LED status indicator 1． 【Normal starting status】: With SD card: All three LEDs are on, and then go off in the order of red, white and green. Without SD card: All three LEDs are on. After the red LED goes off. The white one will go off after the red one flashes 5 times continuously.

  • Page 44: Appendix B: Electrical Characteristics

    starting. Three LEDs flash in streamline state: The failure-reading of E PROM data. Appendix B: Electrical Characteristics Operate -10 ~ +75℃ Temperature Power Consumption Input Voltage 7.4~12V(DC) Appendix C: Mechanical Properties Weight(g) Size(mm Main Controller 110*78*29 Adapter Box 90*62*22 GPS&Compass 90*44*20...

  • Page 45: A Ppendix D: M Echanical D Rawing

    Appendix D: Mechanical Drawing All units are in millimeter in following 【Structure of Main Controller box】...
  • Page 46 【Structure of Adapter box】 【Structure of anti-vibration frame】...
  • Page 47 【Front view of Main Controller in frame】 【Right view of Main Controller in frame】 【COMPASS/GPS MODULE DRAWING】...

  • Page 48: A Ppendix E: P Ackaging L Ist

    Appendix E: Packaging List XP3.1 Standard Main controller 1piece Adapter 1piece Compass&GPS module 1piece Anti-Vibration Frame 1piece LED Status Indicator 1piece Neoprene Isolators 8pieces DB15 connection Cable 1piece USB to Serial Cable 1piece SD card 1piece Product CD 1piece Appendix F: Safety Check List...

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