Airfield 95A251 User manual

ASSEMBLY:

Aileron

(1)

(2)

(3)

(4) Install the .

(5) Install the main landing gear.

(6)

(7) Install the front landing gear.

Install the right and left main wings.

Install the left and right horizontal wings.

Install the left and right vertical wings.

spoiler

Install the nose cone.

95A251

WINGSPAN :

LENGTH : 1032mm/40.6in

WEIGHT : 640g/22.6 oz

BATTERY : 11.1V Lithium Polymer Battery

POWER SYSTEM : Outrunner Brushless Motor

RC SYSTEM : 4 Channel

686mm (27 inches)

Vertic al Tail (lef t)

Horiz onta l Tail( left )

95A25 1-05

Fusel age

Part List

Main Wi ng(l eft)

95A25 1-02

95A25 1-01

95A25 1-11

95A25 1-04

95A251-12

Motor

Nose Co ne

95A25 1-08

Landi ng Gea r

95A251-10

95A25 1-07

95A25 1-06

95A25 1-13

9g Serv o(15 0mm)

95A25 1-14

9g Serv o(30 0mm)

1003专用F18英文说明书

尺寸:420X580MM

材质：128g双铜

95A25 1-09

Ducte d Fan wi th mot or

ESC

Airfi eld -RC

airfieldrc

Do not over di sch arg e Lip o; doing so will d ama ge th e bat tery.

(1) (3)

95A25 1-15

Transmi tter R ecei ver

95A25 1-16

Batte ry

95A251-17

Main Wi ng(r ight )

Vertic al Tail (rig ht)

Horiz onta l Tail( left )

95A25 1-03

615-630mm

(2)

(4) (5) (6)

(7)

Specification:

Type

PN#Model Cont.\Burst

Current(A)

Battery cell

NiXX/Lipo

Weight

(g)

BEC

Output

Size (mm)

W*L*H

User

Progra

A-ZTW3A BEC ZTW12003 3A\5A 3-10 NC \ 1-3 Lipo 2.5 5V / 1A 11 x 17 x 4 yes

A-ZTW6A BEC ZTW12006 6A\8A 5-10 NC \ 2-3 Lipo 5 5V / 1A 13 x 21 x 4 yes

A-ZTW8A BEC ZTW12008 8A\10A 5-12 NC \ 2-4 Lipo 8 5V / 1A 21 x 22 x 4 yes

A-ZTW10A BEC ZTW12010 10A\12A 5-12 NC \ 2-4 Lipo 8 5V / 1A 21 x 22 x 4 yes

A-ZTW12A BEC ZTW12012 12A\16A 5-12 NC \ 2-4 Lipo 8 5V / 1A 21 x 22 x 4 yes

A-ZTW20A BEC ZTW12020 20A\30A 5-12 NC \ 2-4 Lipo 18 5V / 2A 23 x 33 x 6 yes

A-ZTW25A BEC ZTW12025 25A\35A 5-12 NC \ 2-4 Lipo 20 5V / 2A 23 x 33 x 6 yes

A-ZTW30A BEC ZTW12030 30A\40A 5-12 NC \ 2-4 Lipo 28 5V / 3A 23 x 43 x 6 yes

A-ZTW40A SBEC ZTW12040 40A\60A 5-18NC \ 2-6 Lipo 32 5.5V/ 4A 23 x 52 x 7 yes

A-ZTW50A SBEC ZTW12050 50A\70A 5-18NC \ 2-6 Lipo 32 5.5V/ 4A 23 x 52 x 7 yes

A-ZTW60A SBEC ZTW12060 60A\80A 5-18NC \ 2-6 Lipo 44 5.5V/ 4A 23 x 52 x 14 yes

A-ZTW70A SBEC ZTW12070 70A\90A 5-18NC \ 2-6 Lipo 48 5.5V/ 4A 23 x 52 x 14 yes

A-ZTW85A SBEC ZTW12085 85A\100A 5-18NC \ 2-6 Lipo 60 5.5V/ 4A 34 x 52 x 14 yes

A-ZTW110A SBEC ZTW12110 110A\120A 5-18 NC \ 2-6 Lipo 86 5.5V/ 4A 34 x 52 x 20 yes

A-ZTW100A OPTO HV ZTW12100 100A\120A 18-38NC\6-12Lipo 76 34 x 52 x 20 yes

ZTW A-Series ESC’s Features:

◆Extremely low internal resistance

◆Super smooth and accurate throttle linearity

◆Safety thermal over-load protection

◆Auto throttle shut down in signal lose situation

◆Supports high RPM motors

◆Power arming protection (prevents the motor from accidentally running when switched ON)

◆New Advanced programming software

ZTW A-Series’s ESC allows you to program all functions to fit your specific needs, which

makes it very efficient and user friendly:

1.User programmable brake setting (we recommend using brake for only folding props applications)

2.User programmable battery type(LiPo or NiCd/NiMh)

3.User programmable low voltage cutoff setting

4.User programmable factory default setup restore

5.User programmable timing settings (to enhance ESC efficiency and smoothness)

6.User programmable soft acceleration start ups (for delicate gearbox and helicopter applications)

7.User programmable governor mode (for helicopter applications)

8.User programmable motor rotation(clockwise\counterclockwise)

9.User programmable switching frequency

10.User programmable low voltage cutoff type (power reduction or immediate shutdown)

Settings:

1.Brake: ON/OFF

* ON- Sets the propeller to the brake position when the throttle stick is at the minimum position

(Recommended for folding props).

* OFF- Sets the propeller to freewheel when the throttle stick is at the minimum position.

2.Battery type: LiPo or NiCad/NiMh

* NiCad/NiMH – Sets Low Voltage protection threshold for NiCad/NiMH cells.

* LiPo – Sets Low voltage protection threshold for LiPo cells and automatically detects the number of

cells within the pack.

Note: Selecting the NiCad/NiMH option for the battery type, triggers the ESC to automatically set the

cutoff threshold to the factory default of 60%. The cutoff threshold can then be subsequently altered

through the Low Voltage protection function, if required. The ESC will read the initial voltage of the

NiCad/NiMh pack once it is plugged in and the voltage read will then be used as a reference for the cutoff

voltage threshold.

3.Low Voltage Protection Threshold ( Cutoff Threshold ):

Low / Medium / High

1) For Li-xx packs- number of cells are automatically calculated and requires no user input apart from

defining the battery type. This ESC provides 3 setting options for the low voltage protection threshold ;

Low (2.8V)/ Medium (3.0V)/ High (3.2V). For example : the voltage cutoff options for an 11.1V/ 3 cell

Li-Po pack would be 8.4V (Low)/ 9.0V(Med)/ 9.6V(High)

2) For Ni-xx packs-low / medium / high cutoff voltages are 50%/60%/65% of the initial voltage of the

battery pack.. For example: A fully charged 6 cell NiMh pack’s voltage is 1.44V x 6=8.64V,when “LOW”

cutoff voltage is set, the cutoff voltage is: 8.64V x 50%=4.3V and when “Medium” of “High” is set, the

cutoff voltage is now 8.64V X 65%=5.61V.

4. Restore factory setup defaults:

Restore- Sets the ESC back to factory default settings;

Brake：OFF

Battery type Detect：LiPo with Automatic Cell

Low voltage Cutoff threshold：Medium (3.0V/60%)

Timing Setup：Automatic

Soft Acceleration Start Up：Soft Acceleration

Governor Mode ：RPM OFF

Frequency ：8kHz

Low Voltage Cutoff Type：Reduce power

5.Timing Setup : Automatic/ Low / High.

* Automatic (7-30 deg) – ESC automatically determines the optimum motor timing

* Low (7-22 deg) – Setting for most 2 pole motors.

* High(22-30 deg)-setting for motors with 6 or more poles.

In most cases, automatic timing works well for all types of motors. However for high efficiency we

recommend the Low timing setting for 2 pole motors (general in-runners) and high timing for 6 poles

and above (general out-runners). For higher speed, High timing can be set. Some motors require

different timing setups therefore we suggest you to follow the manufacturer recommended setup or use

the automatic timing setting if you are unsure.

Note: Run your motor on the ground first after making any changes to your motor timing!

6.Soft Acceleration Start ups: Very Soft / Soft Acceleration/ Start Acceleration

* Very Soft – Provides initial slow 1.5 sec ramp-up from start to full rpm intended to protect delicate

gears from stripping under instant load. This setting is recommended for either fixed wing models

equipped with gearboxes and / or helicopters.

* Soft Acceleration- Provides initial slow 1 sec ramp-up from start to full rpm. This setting is

recommended for either fixed wing models equipped with gearboxes and or helicopters.

* Start Acceleration – Provides quick acceleration start ups with a linear throttle response. This is

recommended for fixed wing models fitted with direct drive setups.

7.Active RPM Control (Heli Governor mode)

* RPM Control OFF

*First Range: There will be a 5-second delay from start to full rpm, but if the throttle is cutoff after

starting, then the next start will be as normal start.

*Second Range: There will be a 15-second delay from start to full rpm, but if the throttle is cutoff after

starting, then the next start will be as normal start.

Note: Once the Governor Mode is enabled, the ESC’s Brake and Low Voltage Cutoff Type settings will

automatically be reset to No Brake and Reduce Power respectively regardless of what settings they were

previously set.

8.Motor Rotation: Forward/ Reverse

In most cases motor rotation is usually reversed by swapping two motor wires. However, in cases where

the motor cables have been directly soldered the ESC cables, motor rotation can be reversed by

changing the value of setting on the ESC.

9.Switching Frequency : 8kHz/16kHz

* 8kHz – Sets ESC switching frequency for 2 pole motors, e.g. in-runners.

*16kHz – Sets ESC switching frequency for motors with more than 2 poles, e.g. out-runners.

Although 16kHz is more efficient with our Thrust motors, the setup

default is 8kHz due to the higher RF noises caused at 16kHz.

10.Low Voltage Cutoff Type : Reduce Power / Hard cutoff

* Reduce Power – ESC reduces motor power when the pre-set Low Voltage Protection Threshold value

is reached. (recommended)

* Hard Cutoff – ESC instantly cuts motor power when the pre-set Low Voltage Protection Threshold

value is reached.

Programming Mode Audible Tones

Programming Mode Audible Tones ESC Functions

Throttle Calibration

(within the first 4 Sec )●● ●● ●● ●●

1 Brake

* _ * _ * _ * Brake On /Of

2 Battery type

～～～～NiCad

～～～～～～～～

LiPo

3 Low Voltage Cutoff Threshold

*_ _* *_ _* *_ _* *_ _* Low2.8V/50%

*_ _ _* *_ _ _* *_ _ _* *_ _ _* Medium3.0V/60%

*_ _ _ _* *_ _ _ _* *_ _ _ _* *_ _ _ _* High3.2V/65%

4 Restore Factory Setup Defaults

— — — — Restore

5 Timing Setup

– – – – Automatic

(7-30°)

–– –– –– –– Low

(7-22°)

––– ––– ––– ––– High

(22-30°)

6 Soft Acceleration Start Ups

∨∨ ∨∨ ∨∨ ∨∨ Very Soft

∨

Soft Acceleration

∨∨∨ ∨∨∨ ∨∨∨ ∨∨∨ Start Acceleration

7 Governor Mode

*_ _*_ _*_ _*_ Rpm of

**_ _**_ _**_ _**_ Heli first ran

***_ _***_ _***_ _***_ Heli second ran

8 Motor Rotation

W W W W Forward

Reverse

9 Switching Frequency

/ // // // 8kHz

16kHz

10 Low Voltage Cutoff Type

＿ˉ＿ˉ＿ˉ＿ˉReduce Power

ˉ＿ˉ＿ˉ＿ˉ＿Hard Cut Of

Using Your New ESC

Improper polarity or short circuit will damage the ESC therefore it is your responsibility to double check

all plugs for proper polarity and first fit BEFORE connecting the battery pack.

Alert Tones

The ZTW ESC is equipped with audible alert tones to indicate abnormal conditions at power up.

1. Continuous beeping tone (****) – Indicates that throttle stick is not in the minimum position.

2. Single beeping tone followed by a one second pause (* * * *)– Indicates that the battery pack

voltage exceeds the acceptable range. (The ESC automatically checks and verifies the battery voltage

once the battery is connected).

Built-in Intelligent ESC Safety Functions

1. Over-heat protection: When the temperature of ESC exceeds 110 deg C, the ESC will reduce the

output power to allow it too cool.

2. Lost Throttle signal protection: The ESC will automatically cut power to the motor when it detects

a lost of throttle signal for 2 seconds, then the motor will emit continuous beeping tone.

POWERING UP THE ESC FOR THE FIRST TIME & SETTING THE AUTOMATIC THROTTLE

CALIBRATION

The ZTW ESC features Automatic Throttle Calibration to attain the smoothest throttle response and

resolution throughout the entire throttle range of your transmitter. This step is done once to allow the

ESC to “learn and memorize” your Transmitter’s throttle output signals and only repeated if you change

your transmitter.

1.Switch your Transmitter ON and set the throttle stick to its maximum position.

2.Connect the battery pack to the ESC. Wait for about 2 seconds, the motor will beep for twice, then put

the throttle in the minimum position, the motor will also beep, which indicates that your ESC has got the

signal range of the throttle from your transmitter.

The throttle is now calibrated and your ESC is ready for operation.

ENTERING THE PROGRAMMING MODE

1. Switch your Transmitter ON and set the throttle to its maximum position.

2. Connect the battery pack to the ESC.

3. Wait until you hear two short beeps (●● ●● ●● ●●) confirming that the ESC has now entered the

programming mode.

4. If the throttle stick is left in the maximum position beyond 5 seconds, the ESC will begin the

sequence from one function and its associated setting options to another. (Please refer to the table

below to cross reference the functions with the audible tones).

5. When the desired tone for the function and setting option is reached, move the throttle stick down

to its minimum position. ESC will emit two beeps (**) confirming the new setting has been stored.

6. The ESC only allows the setting of one function at a time.

Therefore should you require making changes to other function, disconnect the battery

pack and wait 5 seconds to reconnect the battery and repeat the above steps.

NORMAL ESC START UP PROCEDURE

1. Switch your Transmitter ON and set the throttle to its minimum position.

2. Connect the battery pack to the ESC.

3. When the ESC is first powered up, it emits two sets of audible tones in succession indicating its

working status.

* The first set of tones denotes the number of cells in the LiPo pack connected to the ESC. (Three

beeps (***)indicates a 3 cell LiPo pack while 4 beeps (****) indicates a 4 cell LiPo pack).

* The second set of tones denotes Brake status (one beep(*) for Brake “ON” and two beeps (**) for

Brake “OFF”).

The ESC is now ready for use.

General Safety Precautions

Do not install the propeller (fixed wing) or drive pinion(helicopter) on the motor when you test the

ESC and motor for the first time to verify the correct settings on your radio. Only install your

propeller or pinion after you have confirmed that the settings on your radio is correct.

● Never use ruptured or punctured battery cells.

● Never use battery packs that are known to overheat.

● Never use short circuit battery or motor terminals.

● Always use proper insulation material for cable insulation.

● Always use proper cable connectors.

● Do not exceed the number of cells or servos specified by the ESC.

Wrong battery polarity will damage the ESC and void the warranty.

● Install the ESC in a suitable location with adequate ventilation for cooling. This ESC has a built-in

over temperature cutoff protection feature that will immediately cut power to the motor once the

ESC temperature exceeds the 230 Deg F/ 110 Deg C high temperature limit.

● Use only batteries that are supported by the ESC and ensure the correct polarity before connecting.

● Switch your Transmitter ON and ensure the throttle stick is in the minimum position before

connecting the battery pack.

● Never switch your transmitter off while the battery is connected to your ESC.

● Only connect your battery pack just before flying and do not leave your battery pack connected after

flying.

● Handle your model with extreme care once the battery pack is connected and keep away from the

propeller at all times. Never stand in-line or directly in front of any rotating parts.

● Do not immerse the ESC underwater or allow it to get wet while powered up.

● Always fly at a designated flying site and abide by the rules and guidelines set by your flying club.

Trouble Shooting

Trouble Possible Reason Action

Motor doesn’t work, but there are

audible tones signalling the

number of cells after powering up

ESC.

The ESC throttle calibration has

not set up.

Set up the ESC throttle

calibration.

Motor doesn’t work and no audible

tone emitted after connecting the

battery. Servos are not working

either.

Poor/loose Connection between

battery Pack and ESC.

Clean connector terminals or

replace connector.

No power Replace with a freshly charged

battery pack

Poor soldered connections (dry

joints) Re-solder the cable connections

Wrong battery cable polarity Check and verify cable polarity

ESC throttle cable connected to

receiver in the reverse polarity

Check the ESC cable connected to

the ESC to ensure the connectors

are in the correct polarity.

Faulty ESC Replace ESC

Motor doesn’t work and no audible

tone emitted after connecting the

battery BUT servos are working.

Or Motor doesn’t work after

powering up the ESC. An alert

tone with single beeping tones

followed by a short pause (* * * *)

is emitted.

Poor / loose connection between

ESC and motor

Clean connector terminals or

replace connectors

Burnt motor coils Replace motor

Poor soldered connections(dry

joints) Re-solder the cable connections

The battery pack voltage exceeds

the acceptable range.

Replace with a freshly charged

battery pack

Check battery pack voltage

Motor doesn’t work after powering

up the ESC. An alert tone with

continuous beeping tones (****)

is emitted.

The throttle stick is not in the

minimum position at power up.

Move the throttle stick to the

minimum position.

Motor doesn’t work after powering

up the ESC.ESC emits two audible

tones followed by short beeps (●●

●● ●● ●● )

Reversed throttle channel caused

the ESC to enter the programming

mode.

Enter the servo reverse menu on

your transmitter and reverse the

throttle channel. Note:

For Futaba radios set the throttle

channel to Reverse.

Motor runs in reverse rotation Wrong cables polarity between

the ESC and the motor.

Swap any two of the three cable

connections between the ESC and

the Motor or access the Motor

Rotation function via the ESC

programming mode and change

the pre-set parameters.

Motor stops running in flight.

Lost throttle signal

Check proper operation of the

radio equipment.

Check the placement of the ESC

and the Receiver and check the

route of the receiver’s aerial and

ESC cables to ensure there is

adequate separation to prevent RF

interference.

Install a ferrite ring on the ESC’s

throttle cable.

Battery Pack voltage has reached

the Low Voltage Protection

threshold.

Land the model immediately and

replace the battery pack.

Possible bad cable connection Check and verify the integrity of

the cable connections

Motor restarts abnormally ESC

Overheats

Possible RF Interference at the

flying field.

The normal operation of the ESC

may be susceptible to surrounding

RF interference. Restart the ESC

to resume normal operation on

the ground to verify recurrence. If

the problem persists, test the

operation of the ESC at a different

flying field.

Inadequate

Ventilation

Relocate the ESC to allow better

ventilation

Servos drawing too much current

and over loading the ESC.

Use servos that are adequately

sized for the ESC. The maximum

BEC current drawn should be

within the BEC limits.

Over sized motor or prop Reduce Prop size or resize the

motor

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