© 201 2 DJI Innovation s . All Rights Reserved. 1 | 

# Ace One

User Manual

Ver

. 2. 5

http://www. dji

- innovations.com© 201 2 DJI Innovation s . All Rights Reserved. 2 | 

# Copyrights

This product and manual a re copyrighted by D JI Innovation s 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 D JI Innovation s

. No patent liability is assumed with respect

to the use of the product or information contained herein.



# Disclaimer

D JI Innovation s assumes no liability for damage(s) or injured incurred directly or indirectly from the use of this product.



# Trademarks

DJI and Ace One are registered trademark of D JI Innovation s

. Nam es of product, brand , etc., appearing in this manual are trademarks

or registered trademarks of their respective owner companies.© 201 2 DJI Innovation s . All Rights Reserved. 3 | 

# Product Documents List

The Ace One product package includes the following installation m anual.

To correct ly use Ace One system and fl y safe, please read the instruction carefully before power on.



##  Warranty Card

[ Warranty Card

] recommend the necessary condition s for using Ace One system and related safety issues. Please fill out the

customer & helicopter information card and return to DJI to register your product warranty.



##  Quick Start Guide

[ Quick Start Guide

」 For experienced users, the quick start guide provides a brief summary of the steps that can also be found in

details in th e manual.



##  Ace One User Manual

[ Ace One User Manual ] provides you the detailed steps for Ace One basic setup, configuration, parameter setting s , operation

process es , and also maintenance of the product

.



# Reader’s Guide for This Manual

Please strictly follow th ese steps to mount and connect the Ace One system on your helicopter, as well as to install the Ace One

Assistant software on your computer.



##  I cons seen in this document

F orbidden Please refer to the page(s)
mentioned R/C Transmitter configuration required Alt Key

C aution Assembly & Mounting Tips Mouse Left Click Enter Key

Correct General Tips Mouse Right Click Up/Down/

Left/Right

Directions

Keys Wrong Ace One Assistant

configuration required Ctrl Key



# Contents

Product Documents List

................................ .... 3

Reader’s Guide for This Manual

....................... 3

Contents

................................ .............................. 3

DJI Ace One Introduction

................................ .. 4
Package Contents

................................ .............. 5
Mounting and Connection

................................ . 6

A1 Before you Begin

................................ ........... 6

A2 Mount the devices on your helicopter

............ 6

A3 Connections

................................ ................... 7

A4 Ace Assistant Software Basic Operation

....... 9


### Configuration Procedure

................................ . 11

B1 GPS & IMU Mounting

................................ .. 11

B2 Control Mode Switch

................................ ... 12

B3 Flybarless

................................ .................... 13

B4 Swashplate

................................ .................. 14

B5 Pitch and Throttle Curve Setup

.................... 14

B6 Tail Gyro

................................ ...................... 15 B7 Engine Govern or

................................ ......... 16

B8 R/C Transmitter Calibration

......................... 17

B9 SYSTEM CHECK

................................ ........ 18

B10 Autopilot

................................ ...................... 19

B11 Camera Gimbal Control

............................... 20



### Fl ight

................................ ................................ . 21

C1 Digital Compass Calibration

........................ 21

C2 MANUAL MODE Test Flight

........................ 22

C3 Enhanced Fail

- Safe

................................ ..... 23

C4 Autopilot Test Fight

................................ ...... 24



### Maintains

................................ .......................... 26

Flight Log Reading

................................ ................ 26

Firmware Upgrade

................................ ................ 26

Product Info

................................ ........................... 26


### Appendix

................................ ........................... 27

LED Indicator description

................................ ...... 27

Pr oduct Specifications

................................ ........... 28© 201 2 DJI Innovation s . All Rights Reserved. 4 | 

# DJI Ace One Introduction

DJI Ace One is an autopilot system for radio

- controlled helicopters, which completely takes the stress out of flying RC helicopters for

both professional and hobby applications. Ace One can be installed in a variety of models, from small electric helicopters to large

ga soline and turbine helicopters.



##  Multiple control mode based on autopilot system:

GPS Cruise Mode GPS Atti. Mode Atti. Mode Manual Mode

Command Stick

Meaning Flight speed control; Stick center

position for 0m/s, its endpoint for

maximum speed set by user. Helicopter attitude control; Stick center position

for 0 ̊ attitude, its endpoint for 45 ̊which is a

fixed limit. Mechanical driving

directly

Command Linearity YES NO

Stick Released Lock the position when GPS signal is adequate Only a ltitude

stabilizing R ecomm e nd for

experience pilot only

Altitude lock Maintain the altitude best above 3 meters NO

Stabilization Flybarless stabilizing on ELEV and AILE direction is available for all control mode

GPS Lost A fter 10s when GPS signal lost,

System enters Atti. Mode

. Automatically. Only performing

attitude stabilizing

without position lock. ---

Safety Maintain c onstant speed Attitude & s peed mixture control ensures

stability

. Depends on

experience Enhanced fail

- safe featured, auto hover or Go

- Home if transmitter signal lost

Appropriate

Applications Long and smooth flight route High agility for all flying

---



##  Built

- in f unctions include :

 Integrated tail gyro

The flying direction (YAW) of helicopter will be effected by cross

wind. Ace One system can detect the drifting angle & Speed, and

control the rudder servo to eliminate such influences.

In the case of flying forward in cross

- wind, Tail Gyro can work on

two different modes as the example shown.

 Flybarless rotor head support

 Integrated engine governor for internal combustion engines

 Tilt and roll gimbal stabilization© 201 2 DJI Innovation s . All Rights Reserved. 5 | 

# Package Contents

 Main Controller (MC)

The Main Controller is the brain of Ace One . The MC communicates with the IMU,

GPS/Compass, engine governor, servos and RC transmitter to carry out autopilot

functionality. The MC provides a “black box” flight log, and USB interface to read flight logs,

co nfigure Ace One and update firmware from a PC

. (System requirement: Windows XP SP3 or Windows 7)



##  GPS & Compass module (GPS)

The GPS/Compass module includes two status

- indicat ing

LEDs. It should be installed on the tail boom, where there is a
clear view of the sky

.



# ×1  IMU

The Inertial Measurement Unit (IMU) consists of one 3

- axis

accelerometer, one 3

- axis gyroscope and a barometer.



# ×1

 GPS Tail Boom Mount

The GPS Tail Boom Mount and double

- sided foam tape enable

secure d installation for the GPS/Compass module on almost

any helicopter s

.



# ×1  3

- PIN Servo Cable

Cables u sed to connect the MC to the RC receiver.



# ×10

 3M 5925 Double Sided Tape

( Only for GPS & Compass module ) 

# ×4  Micro USB Cable

This cable is used to configure Ace One , update firmware and

download flight logs. 

# ×1

 Quick Start Guide

For experienced users, the quick start manual provides

summary of the steps which can be found in detail in this

manual. 

##  Warranty Card

Ace One comes with a two

- year warranty, as described on this

card. Please keep this for your personal records. 

# × 1© 201 2 DJI Innovation s . All Rights Reserved. 6 | 

# Mounting and Connection 

# A1 Before you Begin

Fly the helicopter without Ace One and make sure that the helicopter works properly without any autopilot as sistance . To complete this

step, you will need a tail gyro instead of Ace One system . This is a good time to isolate and resolve unwanted vibration s

. IT IS

IMPORTANT THAT YOU SHOULD NOT SKIP THIS STEP.



# A2 Mount the devices on your helicopter

 IMU

 Where? The IMU is best positioned near the helicopter’s center of gravity, where

vibration is relatively low.



###  What orientation? Orient the IMU such that the arrow marked on the above

surface of the IMU faces the sky and points directly forward, backward, left or

right. The sides of the IMU should be precisely parallel to the helicopter body.

DO NOT MOUNT THE IMU UPSIDE

- DOWN.



###  How? Use double

- sided foam tape for secured installation.

1 Check the double

- sided foam tape or Velcro regularly to ensure that the

IMU is securely positioned.

2 DO NOT cover the ventilation holes, keep them unobstructed.

3 The IMU module is NOT water

- proof or oil

- proof.



##  GPS & Compass Module (GPS)

 Where? Mount it on the tail boom, between the

rotor

- head and the tail

- rotor. The compass is

sensitive to magnetic interference, so position the

module at least 20 cm from servos and 30 cm from

electric motors or gasoline (petrol) engines. The

GPS is sensitive to vibration interference, so position

the module at least 10 cm from the tail rotor. The

GPS should not be close to the main rotor head

because rotor blades can interfere with GPS satellite

signal, the farther from the center of the rotor disk,

the better.



###  What Orientation? The DJI logo marked on the

GPS should face the sky, with the orientation arrow

pointing directly forward. The GPS is packaged with

a special indication line for mounting for the first

time. The LED status indicators should face the tail

r otor.

1 If you are uncertain whether materials near the GPS are magnetic or not, you can use a compass or magnet to check it.

2 GPS mounting

- support hardware is included in the Ace One package. If however you prefer to use your ow n GPS mount,
please make sure that the mount material is NOT magnetic.



##  Main Controller (MC)

 Where? There is no orientation requirement for the MC. Maintain at least a 20

- centimeter

- distance between the MC and the

engine or motor. Choose a mounting location where as shorter servo extension wires are needed as possible. This helps reduce

the risks of ele ctronic interference. Please also m ake sure the USB port is accessible when installing the MC so as to facilitate

software configuration.

After choosing a location to mount the MC , it is recommended that you DO NOT mount the MC until all wirings and software

configurations are completed. 

# 1 2

3 4© 201 2 DJI Innovation s . All Rights Reserved. 7 | 

# A3 Connections

 CAN Bus

– Interface for Ace One Module

The Ace One MC uses CAN

- Bus to power and communicate with

other Ace One modules. Three connection ports are provided: two

on the MC and one in

- line connection on the GPS/Compass wire.

Ace One identifies the connected devices automatically without

configuration.



###  GPS module can be connected to either port of MC

.



###  IMU can be conn ected to the MC or to the in

- line port on the

GPS wire. Connect the GPS/Compass and IMU to the MC

. Press & P ull out© 201 2 DJI Innovation s . All Rights Reserved. 8 | 

##  Receiver & Servos

STEP1: Set the transmitter to single

- servo CCPM (Futaba: H

- 1; JR/ Spectrum : 1sNORM; Hitec: 1

- Servo 90°).

Connect the receiver to the MC input servo ports. (High voltage receiver is essential

, over 7.4v )

For Camera Gimbal control

For Control Mode Switch

For collective pitch or up/down

For gyro sense adjusting For rudder control

For throttle control

For cyclic pitch or front/back

For cyclic roll or left/right

STEP2: Connect the cyclic servos and throttle servo or ESC ( NOT the rudder servo) to the

Ace One output servo ports using the diagram corresponding to the swash type of

your helicopter

. (High voltage servo is essential, for example, JR HV series.)

For swashplate servos

For throttle servo or ESC

For rudder servo

For Gimbal servos



##  Battery or BEC

Ace One uses the same power source as the servos and receiver; power to all electronics connected to the MC can be supplied by

either servo input or output port s on the MC

. Ace One operates with a power source between 4.8 to 8.4 volts DC

. When choosing a

power source, bear in mind that all servos and Ace One will use that same power source, thus please make sure the power source you

use will also satisfy the servo requirements. A hi gh capacity battery of 4000mAh or above is strongly advised , especially for large scale

electric powered helicopter.

The power consumption of Ace One is 5W maximum (testing condition : 0.9A@5V ). For s ome small scale helicopter s

, the

BEC provided may not be able to supply enough overall power consumption , please use high performance BEC

.© 201 2 DJI Innovation s . All Rights Reserved. 9 | 

# A4 Ace Assistant Software Basic Operation

Software and Driver Installation

Please download and install the assistant software and driver from our website first. T he micro

- USB port is used for MC configuration

and firmware up grade

Please connect your MC to your internet enabled computer by the USB cable before you open the assistant software. You

have to register at the first time you use the assistant software.

1 TOOL

 Firmware upgrade: update your firmware from DJI

server, keep your Ace One system up

- to

- date.

 Sign in: Log onto DJI server.

 Read flight log : Upon choosing this, Ace One main

controller will become a mobile drive under [My

computer] directory , and Ace Assistant will be

closed automatically

.
 Disable all knobs

 Reset to factory default

2 Language
a) English

b) 中文

3 Newsletter: Latest product news

. 4 ABOUT

 Info : Information regarding your Ace One

 Error Code

5 Export : export /save Ace One configurations in files.

6 Import : load previously saved Ace One configurations.

7 Wizard: step

- by

- step, for your first

- time

- configuration. 8 Write : write data of latest settings of the current page to

your Ace One main controller. The parameter value or the

title of which will appear as red and bold in font when

modifications have been made, make sure you click the

“ Write ” button to update your Ace One sys tem.

9 Read: read parameters from Ace One main controller.

10 Write all : write latest settings and changes of all files to

your Ace One main controller.

11 Graphic guidance

12 Text guidance

13 Flybarless function ON/OFF indication

14 Engine governor working mode indication

15 Tail gyro working mode & gyro sense indication

16 Autopilot working mode indication

17 Red light: Ace One   PC has been disconnected.

Green light: Ace One   PC has been connected.

Blue light : Ace One   PC communication.

18 Here you can find all the configuration pages the same as

in the “ Wizard ”

.



##  Flight & Configuration Procedure Brief© 201 2 DJI Innovation s . All Rights Reserved. 10 |

1 For safety reasons, during configuration and system setup, please disconnect the po wer supply for Electric motor.

2 Please do the following configurations in M anual Mode of the autopilot system.

Steps Description Page



## B1 GPS & IMU Mounting Please measure the center

- of

- gravity (C.G.) of your helicopter , and fill in the

distance between IMU/GPS and C.G. of helicopter in X, Y & Z axles; 11



## B2 Control Mode Switch A djust your transmitter for channel , and then you can switch the
autopilot working mode between M anua l / GPS A tti. / Atti. / GPS Cruise ; 12



## B3 Flybarless Please select flybarless ON/OFF. You might need to adjust parameters

during test flight ; 13



## B4 Swash plate Setup you swashplates according to your helicopter specification; 13



## B5 Pitch & Throttle Curve Setup Set pitch & throttle curve on your transmitter according to our suggestion; 14



## B6 Tail Gyro Make rudder correctly responding to your transmitter commands (rotating

C.W. or rotating C.C.W.) ; 15



## B7 Engine Governor Both electric motor and gasoline engine require setting ; 16



## B8 R/C Transmitter Calibration

, , & are required to do ; 17



## B9 SYSTEM CHECK Check controller output, IMU mounting and battery performance ; 18



## C1 Digital Compass C alibration Slide the control mode switch on transmitter 10 times, and ACE ONE will

enter the compass calibration mode ; 21



## C2 M anual M ode Test Flight Please strictly follow the procedure during flight test, you may need to adjust

the following parameters to achieve the best flight performance: 22



## B3 Flybarless control parameters if you’ve enabled Flybarless; 13



## B6 Tail Gyro sense; 15



## B7 Engine speed and Gov Gain for Gasoline / Nitro engine. 16



## C3 Enhanced Fail

- Safe Please strictly follow the failed

- safe setting procedure, otherwise this

function might not be working correctly. 23



## C4 A utopilot Test Fight Please strictly follow the procedure during flight test, you may need to adjust

the following parameters to achieve the best flight performance: 24



## B10 Autopilot control parameters ; 19



## B3 Flybarless control parameters if you’ve enabled Flybarless; 13

Except tail gyro sense which is already adjustable via Tx, parameters adjusting via transmitter are also available for

Flybarless and Autopilot. These parameters were indicating with“Remote Adj.”option

on Ace One Assistant software, which allows you adjust them from 0.5 to double times:

 INH means remote parameter adjusting was disabled;

 X1 means Remote Adj. was enabled on channel for this parameter;

 X2 means Remote Adj. was enabled on channel for this parameter.

Please finish the following procedure before enable the Remote Adj:

1 Make sure X1 & X2 channel are connected on MC ;

2 Assign two channels on your transmitter for channel X1 and X2;

3 Centered X1 & X2 knobs on transmitter, otherwise the adjustment range for inc rease / decrease will not be the same.

Notice: The introductions for control parameter adjustment were marked by dash

- line box in this manual. You will fly the helicopter

and adjust these parameters for few times during first configuration, to achieve the best flight performance.© 201 2 DJI Innovation s . All Rights Reserved. 11 | 

# Configuration Procedure


# B1 GPS & IMU Mounting

Ace One Assistant Software

- MOUNTING page STEP1: Select I MU Mounting orientation

STEP2: Fill in the distance between IMU / GPS and the C.G. of

helicopter in X, Y & Z axles, please measure the C.G.

with following method:

a) Adjust your helicopter, and make it balance on X

and Y axle as shown below.

b) The C.G. should be on the extended line of

helicopter main shaft.

c) Hang the helicopter by the tail

and use a plum line to find C.G.

on Z axle. You can use your own

methods to estimate the C.G. of

your helicopter.

*Step c) is not required in pod /boom without

camera mounted, and scale helicopt er. Simply

enter value zero will be sufficient

.

GPS normally mounted on tail boom, thus X

and Z could be zero, distance between GPS to

main shaft is X.

1 You must re

- configure if the ALL

- UP

- WEIGHT had been changed on your helicopter, e.g. camera mounted or battery

changed.

2 If mounting locations are not accurate enough or the sign were wrong, error on Y

, Z axle will leads helicopter vibrating,

error on X axle will leads drifting during s pinning

. STEP1

STEP2© 201 2 DJI Innovation s . All Rights Reserved. 12 | 

# B2 Control Mode Switch

1 The transmitter you used must be Fail

- Safe featured, which allows you to setup fixed outputs for all channels if the

receiver loses signals, otherwise Ace One will not enable the Enhanced Fail

- Safe. See Page 23 for details.

2 Working mode for your transmitter should be HELICOPTER.

3 All the channels in your transmitter sho uld be working independently: NO CCPM, NO channel MIX

, NO EXP.

4 You need at least one 2 or 3

- position switch on your transmitter to be set as the control mode switch.

In Ace One Assistant Software, page TX

- MONITOR:

Once the switch position has been matched to specific control

mode, you will see the high

- light as shown following. Whichever 2 or 3 positions switch/channel user has

selected or decided to use in the transmitter ( for control mode

switching), in this case channel U marking on MC . Use sub

- trim

or end

- point (+/

- ) fine tuning on your transmitter, move the slider

of channe l U to the specific range until Ace One Assistant

indicates that it is in Manual

, GPS Cruise, GPS Atti., Atti. and

Failed

- Safe mode

.
Notice: To move the slider is to adjust sub

- trim or end

- points of

the channel selected.



### For 3

- position s switch , you should assign :

Position

-

2 to GPS Atti. Mode or Atti. M ode ;

Position

- 1 to Manual Mode ;

Position

- 3 to GPS Cruise Mode or GPS Atti. Mode ;

Or reve rse the assignment for Position

- 1 and Position

- 3

.



### For 2

- position s switch , you should assign:

Position

- 1 to Manual Mode ;

Position

- 3 to GPS Cruise Mode or GPS Atti. Mode ;
Or reverse the assignment for Position

- 1 and Position

- 3

.

Notice: Please see page 4 for introduction of autopilot control

modes.

Set Fail

- Safe output of receiver to input port

- U , move
the slider to the range which reads Fail

- Safe MODE

.
IMPORTANT: Ace One would not execute Fail

- Safe protection if

you don’t set it properly. You can verify the Fail

- Safe settings by

shutting down your transmitter, and then you can use the

following method to check whether Ace One was already in

Fail

- Safe mode.

You can check the current control mode of Ace One

using either of the following methods:

 Check the Ace One Assistant status bar at the bottom side

of the software interface.

 Check the LED indicators status on GPS/Compass module,

see Appendix in this manual for details.© 201 2 DJI Innovation s . All Rights Reserved. 13 | 

# B3 Flybarless

When system is powered on, you must not move your helicopter or sticks on transmitter until the system initialization is

finished (about 5 second).

Once you changed the Flybarless to “ON”, the AILE and ELEV swash mix ratios in swashplate settings will be disabled, while

[Direction Reverse] button will always be available for AILE and ELEV. After you have set the Flybarless to “ON”, you have

to a djust your swashplate parameters before setting your Flybarless control parameters.

1 You have to adjust flyberless function and test it in M anual M ode first.

2 Don’t try to use Atti. M ode

, GPS Atti. Mode and GPS Cruise M ode until you can fly flybar

- less without any problems.

3 You might need to reduce the control gain of flybarless if you cannot make the helicopter stably hover or fly under Atti.

Mode

, GPS Atti. Mode and GPS Cruise Mode

.

In Ace One Assistant Software, page

- FLYBARLESS:

STEP1: Choose flybarless ON/OFF, you MUST NOT enable

flybarless function for helicopter with flybar, otherwise

the helicopter will be out of control.

When F lybarless is turned on , elevator & aileron will

have stabilization in manual mode.

STEP2: During test flight procedure, pl ease perform the

following configuration procedure.

Gain Parameter range: 20% to 500%

If the helicopter is sluggish, increase it; if the helicopter oscillate back after brake, decrease it. Adjust this parameter 10% increment

time until your control feeling is sharp and the helicopter would not bounce after brak ing

. Note: this parameter will only affect the stability but not control feeling.

Direct Input Parameter range: 3 0% to 300%

This is the direct connect ratio for command stick effect, the rolling speed might not be uniform if it is too high, and also will lead to

quick or sudden change in cyclic response.

Cyclic Rate Parameter range: 20 deg/s to 450 deg/s

This is the helicopter body rolling speed ratio, which determines the maximum rolling speed corresponding to command stick en d

point. The helicopter would response very quickly if it is too high, for example high rate in 3D.

Flybar Weight Parameter range: 20% to 300%

The higher the value, the better the static stability of the helicopter. But, it will increases the sluggish on your control feeling, such as

bank turn, and braking is also not sharp enough, like an large inertia helicopter. Similar to adding weight to blade tip.



##  Suggested Parameters

ALIGN

- 600 Nitro (Default) ALIGN

- 600 Electric LOGO 700 Maxi Joker 3DD

AILE ELEV AILE ELEV AILE ELEV AILE ELEV

Gain 100 100 70 90 150 160 200 250

Direct Input 100 100 120 120 160 180 240 280

Cyclic Rate 180 180 150 150 150 150 130 130

Flybar Weight 100 100 80 80 130 130 150 150 STEP1

STEP2© 201 2 DJI Innovation s . All Rights Reserved. 14 | 

# B4 Swashplate

You should finish the setup for your swashplate in M anual M ode

.

In Ace One Assistant Software, page

- SWASHPLATE : STEP1: You have to set the transmitter to single

servo swash (Futaba: H

- 1; JR/Spektrum:1sNORM;

Hitec: 1

- Servo 90° ), and Ace One will do the CCPM

instead.

STEP2: Please make your selection according to your

swashplate type

. IMPORTANT

STEP3: The swashplate can be rotated in 360°, with 1° step

increase or decrease. Not required in most conditions.

STEP4: Click / button, you can reverse the working

Direction of swashplate servos. Servo Trim is in

range

- 100 to + 100, with default value at 0. T he

swashplate must be level

. The Current Output will let

you indicates whether your swashplate servos are on

their center position or not.

If you have enabled Flybarless function, then Swash

Mix ratio settings for AILE (Cyclic Roll) and ELEV

(Cyclic Pitch) will not be available, please read

Flybarless setting for detail. Please read your helicopter ’s manual, and make sure

the swashplate servo linkage and all the mechanical

parts were correctly adj usted before you use the

above function for swashplate level adjusting.

Swash Mix is identical to Tx CCPM mixing, this function is no

longer avaliable on Tx after set to single servo (on Tx). STEP5: Click / button, you can reverse the moving

direction for PITCH (Collective Pitch), AILE (Cyclic

Roll) and ELEV (Cyclic Pitch).

The Swash Mix ratio is 0~100%, which defines the

maximum working range for PITCH (Collective Pitch),

AILE (Cycli c Roll) and ELEV (Cyclic Pitch), similar to

Tx setting.

Suggestion: 35~ 45%

, it can give you soft flying

movement , and easy to configure for the following

parameters

. 

# B5 Pitch and Throttle Curve Set up

We suggest you to use the following pitch curve for

better lifting power and safety descending speed. Throttle curve for electric power,

this is the example for JIVE ESC : Throttle curve for integrated engine ( with

governor function ): STEP2 STEP3

STEP4

STEP5© 201 2 DJI Innovation s . All Rights Reserved. 15 | 

# B6 Tail Gyro

When system is powered on, you must not move your helicopter or sticks on transmitter until the system initialization is

finished (about 5 second).

In Ace One Assistant Software, page

- Tail Gyro: STEP1: Please properly set your rudder servo type before you

connect your tail

- gyro servo to it, otherwise your servo

might be damaged due to incorrect servo type chosen.

STEP2: We have [LimitA] and [LimitB] (Range:

- 140 to +140),

which represent end

- points of the tail rotor pitch. The

initial value for both is 50. Adjust these two limit value,

make sure your rudder servo can work the fu ll range for

your tail rotor pitch, without any mechanical binding.

Otherwise, the performance of the tail

- gyro will be

affected. You can identify which side of the tail rotor

pitch is represented by LimitA / LimitB like this:

1. Set one of them to 0, another to 50.

2. Move your rudder stick on your transmitter.

3. One side of the tail rotor pitch will not move.

4. This side should be related to the LimitA / LimitB

whichever you are giving value 0 to.

STEP3: Move your rudder stick, and check whether the tail rotor

pitch is wo rking to your expected direction. If not, please

change to proper direction. Transmitter related channels
Input Operation Description

Stick Rudder command

Switch STEP1: Gyro working mode

selection: Rate Mode /

Head

- Locking Mode

STEP2: Gyro sensitivity setting

STEP3: Quickly slide it from rate

mode to head

- locking mode for 3

times, the command stick center

position would be reset. You must also finish the SYSTEM CHECK procedure in

later steps, before you fly your helicopter. You might find

the Controller Output Check for tail rudder result in

opposite rudder moving directions, click [Reverse]

button to make corrections. Please see P age 18

.

STEP4: Switch your Tail

- Gyro working mode to [Rate Mode]

,

take

- off your helicopter and hover. If your helicopter

drifts on YAW direction obviously, then adjust your tail

servo linkage until the helicopter stops drifting. Or you

can use trim to fine

- tune the rudder servo.

If you used trim during the Tail

- Gyro working in Rate Mode, please power off the Ace One and re

- start it before you wish to

use Head

- Locking Mode.

STEP5: Gyro Sense setting: Set your gyro sense via transmitter, with the channel which you plug into input port

- G on Ace One MC.

We suggest you start from 45% in [Head

- locking mode] , take off the helicopter

, reduce the Gyro sense if tail got vibrating; if

the tail response too slow and drift then increase it. Land you helicopter and switch to [Rate mode] , then take off the

helicopter again, fine

- tune the rudder servo to make the tail stop drifting and land again. Switch the tail gyro between [rate

mode] and [Head

- locking Mode] by 3 times, then center position of Tx will be recorded, now you finished the gyro sense

setting. You can identify the Tail

- Gyro working mode on the status bar of Ace One Assi stant, but that gyro sense percentage

may not be the same as your Tx reading due to different Tx manufacture. STEP3

STEP1 STEP2© 201 2 DJI Innovation s . All Rights Reserved. 16 | 

# B7 Engine Governor

In Ace One Assistant Software, page

- ENGINE: STEP1: Before using Governor Control mode, fine tune your

Gas/Nitro engine to good condition. Otherwise the

performance would be negatively impacted.

STEP2: Select the operation mode:

 Select [TX Control] for electric motor;

 F or Gas/Nitro engine , select [TX Control] first , and finish

next ste p: set throttle servo working range . T hen select

[Governor Control]

. STEP3: S et throttle servo travel range, move the throttle stick to

For Electric For Gas/Nitro Click to set

Maximum open position [SET

- MAX]

lowest stick throttle Engine idling position [SET

- IDLE]

Throttle hold Cut position [SET

- STOP]

Notice: you must not turn on the throttle

- cut.

STEP4: After three of the throttle positions being set, click

[ TEST ] button above to review your throttle working

range settings. Throttle servo will be forced to stay on

each respective position for about 2 seconds. Repeat

the [ SET ] procedure if any incorrect s

.

If a mistake is made , e.g, STOP position being set between MAX and IDEL , you will be notified by (Wrong), and Engine
governor will be force d to work in [Tx Control] mode automatically.

STEP5: A third party engine speed sensor is required for the engine speed governor to function. We suggest using Futaba magnetic

engine speed sensor. You have to adjust the sensor/magnet mounting, and leave a proper space between the sensor head

and magnet. You can check this with the percentage bar at page “ENGINE”, over 60% means the magnet is directly facin g
the sensor, and less than 2% means that the sensor is far from directly pointing at the magnet.

Notice: Only ONE magnet can be mounted on cooling fans of the engine.

STEP6: Please refer to user manual of your helicopter and engine, find the following parameters:

 M ain rotor speed, in range: 800 to 2500 RPM ;

 main gear ratio, in range: 1.0 to 20.0;

 Engine RPM, in range: 6000 to 25000 RPM . ( Will be calculated automatically )

STEP7: Gov Gain setting , range: 50% to 300%;

Suggestion: 10 0% for Nitro engine; 1 50 % for gasoline engine;

The higher the gain, the higher the frequency of engine rpm fluctuation

.

Governor STARTS to work in all of the following conditions:

 t hrottle stick position i s higher than 20% from cut

- throt tle ;

 When e ngine speed has been raised above 70 % of set RPM ;

 When e ngine speed sensor works correctly.

Governor STOPS working in either one of the following conditions:

 Throttle stick position lower than 10% from cut

- throttle ;

 Engine speed < 3000 RPM or sensor not working

.

GPS Cruise, GPS Atti. and Atti

. Modes take over the throttle, pitch & cyclic positions at the point of switching from Manual

mode . It is essentially how Ace One knows to maintain throttle relative to rotor RPM, not withstanding Go

- Home function

hence throttle hold other than M anual M ode will not cut the engine or motor. Unless, it is switched back to Manual Mode

. STEP2

STEP7

STEP6 STEP3

STEP4

STEP5© 201 2 DJI Innovation s . All Rights Reserved. 17 | 

# B8 R/C Transmitter Calibration

In Ace One Assistant Software, page

- TX MONITOR: Totally 4 TX channels are required to be calibrate:

STEP1. Click [START] button, and move all of the sticks

throughout their complete range several times.

STEP2. Click [FINISH] button when you finished above

procedures.

1 You have to finish the throttle and pitch curve setting

before calibration, here the end

- point of transmitter

sticks will be record.

2 If the throttle or pitch end

- point of transmitter had

been changed, please calibrate it again. STEP1© 201 2 DJI Innovation s . All Rights Reserved. 18 | 

# B9 SYSTEM CHECK

You have to run the system check in Ace One Assistant

– SYSTEM CHECK for Ace One system to work properly:



##  Controller Output Check

1 Switch to Non

- Manual mode first.

2 Click [ START ] button, Ace One will drive the swashplate up and down , representing collective movement during flight.

3 Click [ NEXT ] button, Ace One will drive the swashplate forward and back, represent ing elevator movement during flight.

4 Click [NEXT] button, Ace One will drive the swashplate left and right

, represent ing aileron movement during flight.

5 Click [NEXT] button, Ace One will drive the rudder , representing rotating C.C.W. and then C.W.

6 Click [ END ] button or switch to Manual mode

, Controller Output Check will be finished

.



##  IMU Feedback Check

1 Switch to Non

- Manual mode first.

2 Click [CHECK] button.

3 Tilt the tail boom of the helicopter

, the swashplate should respond to the opposite direction.

4 Tilt the helicopter body on its roll direction, the swashplate should also respond to the opposite direction.

5 Switch to Manual mode and fin ish the IMU Feedback Check.

1 If your helicopter was not respon ding as described above, you may be plac ing you r IMU in a wrong orientation, or
you’ve select a wrong orientation for your IMU in Ace One Assistant . Please check sensor m ounting again.

2 If the swash is not level (This is not critical), this can be cause by:

 IMU is not level to AIR frame;

 AIR frame and landing skids are not level to ground

.



##  Battery Performance Test

1 Switch to Non

- Manual mode first.

2 Make sure that your battery has at least 80% capacity left from being fully charged.

1 Click [START] button, Ace One will force all the servos you connected and LEDs working at maximum payload , which will behave

as shaking swashplate and rudder. This will continue for 20 seconds and then stop automatically, you can force it stop by click ing

[STOP] button, or switch to Manual mode

.
2 Ace One Assistant will inform you the test result (LEDs on GPS will also blinking in yellow if failed condition was matched) :

F ailed, it means voltage drop below 3.5v , the battery or BEC were not be able to provide necessary power, please change it

.

T est passed. If the swashplate or rudder mov es in opposite sequence, you should click reverse button / for correction

.
If the swashplate or rudder still doesn’t moves as your expected, it may cause by wrong connection between Ace One MC

and R/C Receiver, please also check the s washplate setting and Tail

- Gyro setting. 

### V ery important, check them carefully !© 201 2 DJI Innovation s . All Rights Reserved. 19 | 

# B10 Autopilot

In Ace One Assistant Software, page

- Autopilot: 

##  Base Parameters

 Gain

Range: Front/back & Left/Right 40%

~ 400%; Vertical 50%~250%

If too large, you will find the helicopter oscillating in the

corresponding direction (About 5~10Hz). If too small, the

helicopter will likely to be hard to control.

In GPS Atti. Mode and GPS Cruise Mode , if helicopter drifting

on front/back or left/right direction for 2~5 meters, then increase

10% on the corresponding direction it drift s to until the helicopter

getting oscillation . If helicopter vibr ate on its vertical direction,

then reduce vertical parameter by 10% until it get stable. If

altitude drop and drift happens during sharp braking, then

increase I.D.R

- Vertical in advance parameters.

 MAX Speed Limit ( m/s )

Range: Front/back & Left/Right 1. 0

~ 10.0 m/s

 Agility Range: 50%

~ 200%

It determine s the start

- up speed from command stick, the bigger

the value the faster the reaction. Increase it for sharper and

quicker leveling action after command stick released. The control

feeling will be st iffness and rigid if the value is too high ; and

sluggish leveling action and slow braking if too small.

 Stick Delay Range: 50%

~ 200%

It determines the overall stick reaction speed, for example:

You push your roll stick to the maximum position your helicopter

will tilt from leveling to 45 degrees, the smaller the number the

quicker the transition.



##  Advance Parameters

The default values are suitable for most of the condition,

please check DJI website for details.

 Velocity Tracking Range: Front/back & Left/Right 20.0%

~
250.0%; Vertical 20.0%

~ 150.0%

 I Range: Front/Back & Left/Right & Vertical 0%

~ 500% Transmitter related channels
Input Operation Description

Switch Control Mode Switch

Switch Quickly slide it from rate mode to

head

- locking mode for 3 times,

all the command sticks center

position would be reset, see

page 15 for tail gyro working

mode setting.

Stick Up/Down command from Tx

Stick Front/Back command from Tx

Stick Left/Right command from Tx

Stick Rudder command from Tx



##  Suggested Parameters

ALIGN 600 Nitro ALIGN 600 Elec. LOGO 700 Maxi Joker 3DD JR GSR260

F/B L/R V F/B L/R V F/B L/R V F/B L/R V F/B L/R V

Gain 100 100 100 130 110 80 150 151 100 160 160 110 155 165 130

Agility 100 150 130 100 175

Stick Delay 100 110 135 185 166

Velocity Tracking 100 100 100 110 110 113 100 100 100 100 100 100 100 100 100

I 100 100 100 114 115 116 100 100 100 100 100 100 100 100 100© 201 2 DJI Innovation s . All Rights Reserved. 20 | 

# B11 Camera Gimbal Control

This function aims to auto balance the 2

- D camera gimbal. Roll direction of the gimbal is fully automatic controll ed by Ace One , Pitch

direction is automatic controlled by Ace One with real

- time manual adjustment support

.

In Ace One Assistant Software, page

- Gimbal: STEP1: Servo travel limit and center position
Range:

- 1000 to + 1000

MAX / MIN are servo travel limits; adjust them to avoid

mechanical binding ; Place your helicopter on level

ground, adjust CENTER value of PITCH and ROLL

direction to make the camera mounting frame to your

desired angle

- to

- ground.

STEP2: Direction & Automatic control gain Range: 0 to 100

Adjust the reaction angle of automatic control, the initial

value 100 is full speed ; Click / button, and then

you can reverse the feedback control directions.

STEP3: Manual control command for Pitch direction of the gimbal.

You should assign one of the knobs on your transmitter to

X1 channel for controlling the Pitch direction (angle) of

camera gimbal during flight.

If parameter adjustment was enabled on channel X1, the

gimbal manual control via channel X1 will not be force to

disabled.

STEP4: Manual Control Speed Range: 0 to 100

Adjust the reaction speed of pitch direction manual

control, the initial value 100 is full speed. STEP1

STEP2

STEP4© 201 2 DJI Innovation s . All Rights Reserved. 21 | 

# Flight



# C1 Digital Compass Calibration

 Why calibrate the compass?

Ferromagnetic substances placed on helicopter or around its

working environment will affect the reading of earth magnetic

for digital compass, it also reduce s the accuracy of the

helicopter control, or even reads incorrect heading.

Calibration will elimina te such influences, and ensure Ace

One system performs well in a non

- ideal magnetic

environment.



##  When to do it?

1 The first time you install Ace One on your helicopter.

2 When the helicopter mechanical setup is changed:
a) If the GPS module is re

- positioned.

b) If electronic devices are added / removed /

re

- positioned ( MC , servos, batteries, etc).

c) When the mechanical structure of the helicopter is

changed.

3 If the flight direction appears to be shifting (meaning the
helicopter doesn’t “fly straight”).

4 The LED indicat or often indicates abnormality blinking
when the helicopter yaws. (It is normal for this to happen

only occasionally.) 

##  Calibration procedure:

STEP1: Enter calibration mode: quickly slide the control mode

switch from Position

- 1 to Position

- 3 for 10 times, and LED

indicator will be constantly on in blue;

STEP2: Calibration in horizontal: rotate you helicopter along with

the horizontal surface until the green light is on constantly,

then go to the next step;

STEP3: Calibration in vertical: while gr een light is constantly on,

hold your helicopter vertically and rotate it along with its

vertical axis , keep rotating until the green light is off,

meaning the calibration is finished.

STEP4: After you finished the calibration, LED indicator will show

whether the calibration was successful or not:

 If white light turns on for 3 seconds, calibration succeed s,

calibration mode will auto e xit ;

 If red light keeps blinking quickly, the calibration has failed.

Slide the control mode switch one time to cancel current

calibration, and then re

- start from step 1 for re

- calibration. 1 Don’t calibrate your compass where there is
strong magnetic interference, such as

magnetite, car park, and steel reinforcement

under the ground.

2 DO NOT carry ferromagnetic materials with you

during calibration, such as keys or cell phones.

3 You don’t need to rotate your helicopter on a

precise horizontal or vertical surface, but keep at

least 45° difference bet ween horizontal and

vertical calibration.

4 Ace One cannot be work in the polar circle. If you keep having calibration failure, it might suggest that

there is very strong magnetic interference around the GPS,

please avoid flying in this area.© 201 2 DJI Innovation s . All Rights Reserved. 22 | 

# C2 MANUAL MODE Test F light

1 When the system is powered on, DO NOT moves your helicopter or sticks on transmitter until the system initialization is
finished (about 5 seconds).

2 Don’t switch to Atti. Mode

, GPS Atti. Mode and GPS Cruise Mode during M anual M ode Test Flight

. Go through this

section first, and read about how to do A utopilot Test Flight on Page 24

.

1 Fly the helicopter. Trim transmitter such that the

helicopter hovers stably.

2 You have to adjust the following parameters to
achieve the best performance of yo ur

helicopter.

 Flybarless parameters, if you’ve enabled

Flybarless, see Page 13 for details.

 Tail Gyro sense, see Page 15 for details.

 Engine speed , if you are using Gasoline /

Nitro engine, see Page 16 for details.

3 Adju st Pitch curve on transmitter, so that the

helicopter hovers at about mid

- stick.

4 Set correct fail safe output on all channels of
your R/C Transmitter/Receiver.

5 Verify Fail safe output of your transmitter on

status bar in Ace One Assistant . IMPORTANT! STEP1: Check all the connection and wiring connected firmly , and

make sure they are in good condition;

STEP2: Make sure your batteries are fully charged for your

transmitter, Ace One and all the devices on your helicopter;

STEP3: Turn on the transmitter first;

STEP4: Power on the Ace One and all the rest of electric device s on

helicopter, except brushless motor controller;

STEP5: Check the LED indicator on GPS, if red LED blinks quickly

& continually , then system start

- up has failed; you have to

place you helicopter horizontally and power on agai n. See

Appendix for details about LED indicator;

STEP6: Slide the control mode switch on your transmitter to make

sure it is working properly. Check LED indicator to specify

the current working mode for Ace One . See Appendix for

details about LED indicator;

STEP7: Others system failure and error will also be displayed by

LED indicator on GPS, See Appendix for details;

STEP8: If everything checked, and without any problems, switch

the system to M

anual Mode

, move all the sticks on your

transmitter to check whether the helico pter is correctly

responding to your commands;

STEP9: Start the engine or power on the brushless motor controller;

STEP10: Take

- off and fly your helicopter in M anual M ode , before

switching to other modes. The Enhanced Fail

- Safe ( Auto Hovering and Auto

Go

- Home ) has not been activated yet, g o through

this section first and read about how to activate it on

Page 23

.© 201 2 DJI Innovation s . All Rights Reserved. 23 | 

# C3 Enhanced Fail

- Safe

Ace One can detect the fail safe output from your receiver, if you have pre

- set fail safe output correctly. Once your helicopter lost signal

from the transmitter, Enhanced Fail

- Safe function will control the helicopter automatically and save it in most of the conditions.

1 The Enhanced Fail

- Safe (Auto Hovering and Auto Go

- Home) will not be activated, until you’ve correctly Pre

- set

Transmitter Command Stick Center Position.

2 The Enhanced Fail

- Safe functions will not be working corre ctly if you have not finished the A uto M ode Test Flight

. Please see A utopilot Test Flight on Page 24 for details.

3 You must perform the following setting under M anual M ode

. 4 If GPS signal reception is bad, Auto Go

- Home function will not be disable , even it was activated in Ace One Assistant

, i n

case the Attitude Hold function will be force to activate instead.

In Ace One Assistant Software, page

– Enhanced

Failed

- Safe: STEP1: Please configure your autopilot to the best condition,

make sure the helicopter can flight well under GPS

Cruise Mode and GPS Atti. Mode ;

STEP2: Switch you r Ace One into M anual M ode ;

STEP3: Please record your command stick positions which are

the same as the moment you switched from M anual

M ode (if you changed throttle curve before switching,

use that curve for this setting). You will be asked to

configure your transmitter, and let your helicopter able

to hover w ith transmitter command stick roughly (Not to

be exact ) on their center position. You can read the

[current stick position] which shown as number

- 1000

to + 1000 in real time, click button, save them into

[Confirmed] group as Tx center position.

You will be noticed by symbol instead of

button, which means you throttle working range has not

been correctly set or your throttle position is holding on throttle

- cut (STOP) position. Please check your throttle

- cut switch and throttle

working range setting in Ace One Assistant page

– Engine. See page 16 for details.

STEP4: Must check the confirm box that the Tx center position is correct, otherwise enhanced failed

- safe will be disabled.

STEP5: Select protection method, auto Hovering or Go

- Home, the following schematic shown is introduction for Go

- Home.

Fail

- Safe functions are designed for GPS Atti. Mode and GPS Cruise Mode. O nce the helicopter came back to the available

transmitter signal range, switch to M anual M ode then you can re

- gain the control right for Ace One system. STEP3

STEP5 STEP4© 201 2 DJI Innovation s . All Rights Reserved. 24 | 

# C4 A utopilot T est F ight

When system is powered on, you must not move your helicopter or sticks on transmitter until the system initialization is

finished (about 5 second).

Please read this section before you switched to

Atti. Mode

, GPS Atti. Mode and GPS Cruise Mode

1 Make sure the GPS signal is good, without red LED

blinking.

2 Please avoid using Ace One system in the following

areas, where will GPS signal is most likely blocked:

 Urban area with crowded buildings

 Tunnels

 Under bridges

3 Make sure the attitude of helicopter is in good condition,

without white LED blinking.

4 Others system failures and errors will also be display by

LED indicator on GPS/Compass module, See Appendix

for details. STEP1: Check all connections and wirings, and make sure they are

in good conditio n;

STEP2: Make sure your batteries are fully charged for your

transmitter, Ace One and all the devices on your helicopter;

STEP3: Turn on the transmitter first;

STEP4: Power on the Ace One and all the rest of electric device on

helicopter, except brushless motor controller;

STEP5: Ch eck the LED indicator on GPS/Compass module, if red

LED sparks quickly, the system start

- up has failed. You will

need to place you helicopter horizontally and power on

again. See Appendix for details about LED indicator;

STEP6: You may find red LED blinking, indi cating that Ace One is

getting GPS satellite signal, please wait until red LED is off,

meaning Ace One have found more than 7 GPS satellites,

and that it can work in its best condition. See Appendix for

details about LED indicator;

STEP7: Slide the control mode s witch on your transmitter to make

sure it is working properly. Check it with LED indicator to

specify the current working mode for Ace One . See

Appendix for details about LED indicator;

STEP8: Switch the system to GPS Cruise Mode , if the swashplate

is not horizon tal, please go back to 3 rd step, and power

cycle the system;

STEP9: Switch the system to Manual Mode , move all the sticks on

your transmitter to check whether the helicopter is correctly

responding to your commands;

STEP10: If everything checked, and without any problems, switch

the system to Manual Mode ;

STEP11: Start the engine or power on the brushless motor controller;

STEP12: Take

- off and fly your helicopter in Manual Mode ;

STEP13: Hover your helicopter, and switch to GPS Cruise Mode

. 

# Optional Chargeable Function

 Semi

- Auto take

- off

Please setup B7 Engine Governor and all center positions

correctly before you use this function. On STEP12 , the

system can perform Semi

- Auto take

- off feature rather than

manual take

- off. Please follow the operation procedures

strictly:

1 Put the throttle stick on the lowest position;

2 Switch to GPS Cruise or GPS Atti. o r Atti. Mode and

wait until the speed of m ain rotor is stable ;

3 Requiring only push ing the throttle (collective pitch) stick

gently to take

- off the helicopter, aut opilot system will be

in charge of the cyclic pitch/roll stabilization.



##  Semi

- Auto Landing

In GPS Cruise or GPS Atti. or Atti. Mode , with throttle

(collective pitch) stick operation only, descend the helicopter

and hold throttle stick on lowest position until the engine or

electric motor is cutoff automatically. This throttle idle or

shut

- down in Auto mode when collective is lowest stick

position only applies having this option.

1 Wi th this option, MC will perform in GPS Cruise

or GPS Atti. Or Atti. Mode for both takeoff and

landing. Please be aware this “Always on” auto mode

should “NOT” be used in MC without this opti on.

2 Make sure use this function only when the GPS signal is

sufficient and at open area !© 201 2 DJI Innovation s . All Rights Reserved. 25 |

Should you find the helicopter does

not track straight in forward flight,

you might try re

- moun ting GPS in an

offsetting angle as showed in right

figure. Θ in the figure is the

offsetting angle

.© 201 2 DJI Innovation s . All Rights Reserved. 26 | 

# Maintains

Flight Log Reading

Notice: You may be asked to provide your Ace One Flight Log for customer s upport

.

1. Click [TOOL]  [ Read Flight

- Log ]

. 2. Click [ OK ]

. 3. Ace One Assistant Software will be closed automatically and Ace One MC will be working as a storage drive named [ACEONE

LOG]

, you can find it in [My Computer] directory

.

4. O pen it and you can find your fight log files there. C opy or delete as you do normal PC operation s

. 5. Please power cycle Ace One for exit from Flight Log read ing mode

.

You have 4GB memory space for Ace One flight log recording.

If the memory is out of space, Ace One will stop flight log recording and format all the information after power cycle the MC

.



# Firmware Upgrade

Please strictly follow the operation procedure for firmware upgrade, otherwise Ace One might not work properly :

1. Make sure your computer is connected to the Internet.

2. Please close all the other applications during the firmware upgrade, including Anti

- virus software and firewall.

3. Make sure the power supply is securely connected with Ace One

. DO NOT un

- plug the power supply until firmware upgrade has

finished.

4. Connect Ace One MC to PC with micro

- USB cable

, DO NOT break connection until firmware upgrade is fini shed.

5. Open Ace One Assistant Software and wait for connection.

6. Select [TOOL]  [ Firmware Upgrade ]

.
7. DJI server will check your current firmware version, and get the latest firmware prepared for Ace One Assistant

. 8. If there is a firmware version more up

- to

- date than your current version, you will be able to click the upgrade button.

9. Wait until Ace One Assistant reads “F inished ”

. 10. Please power cycle Ace One after at le ast 5 seconds.

11. Your Ace One is up

- to

- date now.

 After firmware upgrade, please re

- configure the Ace One via Ace One Assistant

.

 If it is notified that the network or DJI server is busy, please try again later with above procedures.

 If firmware upgrade failed, the Ace One will enter <waiting for firmware upgrade status> automatically, please try

again with the above procedures.



# Product Info

You can check the Ace One product version via [ABOUT]  [ Info ]

.

 Software version  Firmware version  IMU version  Hardware ID

[S/N] is a 32 digit s authorization code for Ace One function activations. We had already filled in the authorization code for your Ace

One after manufacture. You might be asking to fill in the new [S/N] in the future if you brought new function upgrade s.

Fill

- in the [S/N] and then click [Write] button

.

If you filled in the invalid S/N over 30 times, your Ace One wi ll be locked and you have to contact our customer support.© 201 2 DJI Innovation s . All Rights Reserved. 27 | 

# Appendix

LED Indicator description

Manual Mode Tx Signal Lost

GPS satellites found < 5

GPS satellites found < 6
GPS satellites found < 7 Attitude & GPS good
Attitude status fair
Attitude status bad

GPS Atti

. Mode GPS Cruise Mode

GPS satellites found < 5
GPS satellites found < 6 GPS satellites found < 7 Attitude & GPS good
Attitude status fair
Attitude status bad

Atti. Mode

GPS satellites found < 5 Notices: the sparking indication of & &

could be: Single spark , all the sticks return to

center, helicopter hovering; Double spark , stick(s)

not at center, speed command is not zero. GPS satellites found < 6 GPS satellites found < 7 Attitude & GPS good
Attitude status fair
Attitude status bad

Compass Calibration Status

Begin horizontal calibration

Begin vertical calibration

Calibration finished * 3s only

Calibration or others error / C ompass abnormal

System Checking Mode IMU Lost

Right

- LED

Left

- LED

Please check the IMU connection once above

warning activated.

< 3.5V Low Voltage Warning < 4.4V Low Voltage Warning

Right

- LED

Left

- LED

!!! You must replace the battery once above warning activated !!!

1 The circle symbols above represent one blink each.

2 The rectangular symbols above represent an LED being solid on



### .

3 B oth LEDs operate simultaneously, except indicating with or during power on

.© 201 2 DJI Innovation s . All Rights Reserved. 28 | 

# Product Specifications

 General specifications

Built

- In Functions: Autopilot

Tail Gyro

Engine Governor

Fly barless

Return

- to

- Home Fail Safe

Helicopter Types: Electric and internal combustion powered

Supported Swashplate Types: Normal, Three Servo 120°/140°/90° , Four Servo 90°

Supported Servo output: 500Hz ( 760us ) /200Hz ( 1520us ) for Rudder Channel;

Others follow on your receiver output

.
Recommended Transmitter: PCM or 2.4 GHz with minimum 7 channels and

Failsafe function available on all channels

Recommended Power Supply: DC 7.4 ~ 8.4V (Not to exceed MAX operating voltage of servo motor)

> 4000 mAh capacity, Discharge current more than 5C

Power Consumption: MAX 5W ( 0.9A@5V

, 0.7A@5.8V

, 0.5A@7.4V

, 0.4A@8V )

Operating Temperature:

- 5 °C to +70°C

( You have to keep the IMU warm if you want to use it under low temperature, could be

- 10°C even lower. )

Memory: 4GB Flash Memory for flight information recording



##  Flight Performance ( can be effected by mechanical performance)

Hovering Accuracy : Vertical : ± 0.5m

Horizontal : ± 1m

Suitable Wind Condition: < 8m/s (17.7mph)

Forward / Backward Speed: ± 72 Km/h (44.74mph)

Left / Right Speed: ± 56.7 Km/h (35.77mph)



##  Packaging & Shapes

Total Weight: <= 150g

Dimensions: Main Controller: 61mm x 39.6mm x 15.8mm

IMU: 40mm x 31mm x 26mm

GPS & Com pass: 50mm ( diameter ) x 9mm