Hobbywing SkyWalker-20A User Manual download pdf

User Manual of Brushless Speed Controller HW-SM003DUL-20130709

Page 2

Thanks for purchasing our

Electronic Speed Controller (ESC). High power system for RC model is very dangerous, please read

this manual carefully. In that we have no control over the correct use, installation, application, or maintenance of our products,

no liability shall be assumed nor accepted for any damages, losses or costs resulting from the use of the product. Any claims

arising from the operating, failure or malfunctioning etc. will be denied. We assume no liability for personal injury, property

damage or consequential damages resulting from our product or our workmanship. As far as is legally permitted, the obligation

to compensation is limited to the invoice amount of the affected product.

Specifications

Note: The Skywalker-6A,12A, 12AE, 30A, 50A, 60A and 80A are only used for RTF applications

Size

2S Lipo 3S Lipo 4S Lipo 6S Lipo Lipo NiMH L*W*H

Skywalker-6A 6A 8A Linear 5V/0.8A 3 servos 2S 5-6 cells 5.5g 32*12*4.5

Skywalker-12A 12A 15A Linear 5V/1A 3 servos 2 servos 2-3S 5-9 cells 9g 38*18*6

Skywalker-12AE 12A 15A Linear 5V/2A 5 servos 4 servos 2-3S 5-9 cells 10g 38*18*7

Skywalker-20A 20A 25A Linear 5V/2A 5 servos 4 servos 2-3S 5-9 cells 19g 42*25*8

Skywalker-30A 30A 40A Linear 5V/2A 5 servos 4 servos 2-3S 5-9 cells 37g 68*25*8

Skywalker-40A 40A 55A Linear 5V/3A 5 servos 4 servos 2-3S 5-9 cells 39g 68*25*8

Skywalker-40A-UBEC 40A 55A Switch 5V/3A 5 servos 5 servos 5 servos 2-4S 5-12 cells 43g 65*25*12

Skywalker-50A-UBEC 50A 65A Switch 5V/3A 5 servos 5 servos 5 servos 2-4S 5-12 cells 43g 65*25*12

Skywalker-60A-UBEC 60A 80A Switch 5V/5A 8 servos 8 servos 6 servos 6 servos 2-6S 5-18 cells 63g 77*35*14

Skywalker-60A-OPTO 60A 80A N/A N/A 2-6S 5-18 cells 60g 86*38*12

Skywalker-80A-UBEC 80A 100A Switch 5V/5A 8 servos 8 servos 6 servos 6 servos 2-6S 5-18 cells 82g 86*38*12

Skywalker-80A-OPTO 80A 100A N/A N/A 2-6S 5-18 cells 79g 86*38*12

Weight

Battery Cell

Model

Cont.

Current

Burst

Current

(>10s)

BEC

Mode

BEC

Output

BEC Output Capability

Programmable Items (The option written in bold font is the default setting)

1. Brake Setting˖Enabled / Disabled

2. Battery Type˖Lipo / NiMH

3. Low Voltage Protection Mode(Cut-Off Mode)˖ Soft Cut-Off (Gradually reduce the output power) /Cut-Off (Immediately stop the

output power)

4. Low Voltage Protection Threshold(Cut-Off Threshold)˖Low / Medium / High

1) For lithium battery, the battery cell number is calculated automatically. Low / medium / high cutoff voltage for each cell is:

2.85V/3.15V/3.3V. For example: For a 3S Lipo, when ³MHGLXP´ FXWRII threshold is set, the cut-off voltage will be:

3.15*3=9.45V

2) For NiMH battery, low / medium / high cutoff voltages are 0%/50%/65% of the startup voltage (i.e. the initial voltage of

battery pack), and 0% means the low voltage cut-off function is disabled. For example: For a 6 cells NiMH battery, fully

charged voltage is 1.44*6=8.64VZKHQ³Medium´FXW-off threshold is set, the cut-off voltage will be: 8.64*50%=4.32VǄ

5. Startup Mode˖Normal /Soft /Super-Soft (300ms / 1.5s / 3s)

a) Normal mode is suitable for fixed-wing aircraft. Soft or Super-soft modes are suitable for helicopters. The initial acceleration of

the Soft and Super-Soft modes are slower, it takes 1.5 second for Soft startup or 3 seconds for Super-Soft startup from initial

throttle advance to full throttle. If the throttle is completely closed (throttle stick moved to bottom position) and opened again

(throttle stick moved to top position) within 3 seconds after the first startup, the re-startup will be temporarily changed to normal

mode to get rid of the chance of a crash caused by slow throttle response. This special design is suitable for aerobatic flight

when quick throttle response is needed.

6. Timing˖Low / Medium / High,( 3.75e/15e/26.25e)

Usually, low timing is suitable for most motors. To get higher speed, High timing value can be chosen.

Begin To Use Your New ESC

IMPORTANT! Because different transmitter has different throttle range, please calibrate throttle range before flying.

Throttle range setting

(Throttle range should be reset whenever a new transmitter is being used)

Normal startup procedure

Protection Function

1. Start up failure protection: If the motor fails to start within 2 seconds of throttle application, the ESC will cut-off the output power. In this

case, the throttle stick MUST be moved to the bottom again to restart the motor. (Such a situation happens in the following cases: The

connection between ESC and motor is not reliable, the propeller or the motor is blocked, the gearbox is damaged, etc.)

2. Over-heat protection: When the temperature of the ESC is over about 110 Celsius degrees, the ESC will reduce the output power.

3. Throttle signal loss protection: The ESC will reduce the output power if throttle signal is lost for 1 second, further loss for 2 seconds

will cause the output to be cut-off completely.

Trouble Shooting

Trouble Possible Reason Action

After power on, motor does not work, no

sound is emitted

The connection between battery

pack and ESC is not correct

Check the power connection.

Replace the connector.

After power on, motor does not work,

such an alert tone is emitted:

³beep-beep-, beep-beep-,beep-beep-´

(Every ³beep-beep-´ has a time interval

of about 1 second)

Input voltage is abnormal, too high

or too low.

Check the voltage of battery pack

After power on, motor does not work,

such an alert tone is emitted:

³beep-, beep-, beep- ´(Every ³beep-´ has

a time interval of about 2 seconds)

Throttle signal is irregular Check the receiver and transmitter

Check the cable of throttle channel

After power on, motor does not work,

such an alert tone is emitted:

³beep-, beep-, beep-´ (Every ³beep-´ has

a time interval of about 0.25 second)

The throttle stick is not in the

bottom (lowest) position

Move the throttle stick to bottom position

After power on, motor does not work, a

special tone ³ ´ is emitted after 2

beep tone (beep-beep-)

Direction of the throttle channel is

reversed, so the ESC has entered

the program mode

Set the direction of throttle channel correctly

The motor runs in the opposite direction The connection between ESC and

the motor need to be changed.

Swap any two wire connections between ESC and

motor

Program the ESC with your transmitter (4 Steps)

Note: Please make sure the throttle curve is set to 0 when the

throttle stick is at bottom position and 100% for the top position.

1. Enter program mode

2. Select programmable items

3. Set item¶s value (Programmable value)

4. Exit program mode

1. Enter program mode

1) Switch on transmitter, move throttle stick to top

position, connect the battery pack to ESC

2) Wait for 2 seconds, the motor should emit

special WRQHOLNH³EHHp-beep-´

3) Wait for another 5 seconds, special tone like

³ ´ should be emitted, which means

program mode is entered

4. Exit program mode

There are 2 ways to exit

program mode:

1. In step 3, after special

WRQH ³ ´ please

move throttle stick to

the bottom position

within 2 seconds.

2. In step 2, after tone

³EHHp-----beep-----´(th

at is: The item #8),

move throttle stick to

bottom within 3

seconds.

3. Set item value (Programmable value)

You will hear several tones in loop. Set the value matching to a tone by moving throttle stick

to top when you hear the tone, then a VSHFLDOWRQH³ ´ emits, means the value is set

and saved. (Keeping the throttle stick at top, you will go back to Step 2 and you can select

other items; or moving the stick to bottom within 2 seconds will exit program mode directly)

Tones

Items

³EHHp-´

1 short tone

³beep-beep-´

2 short tones

³beep-beep-beep´ 

3 short tones

Brake

Off On

Battery type

Lipo

NiMH

Cutoff mode

Soft-Cut Cut-Off

Cutoff threshold

Low Medium High

Start mode

Normal Soft Super soft

Timing

Low Medium High

2. Select programmable items

After entering program mode, you will hear 8 tones in a loop with

the following sequence. If you move the throttle stick to bottom

within 3 seconds after one kind of tones, this item will be selected.

1. ³EHHp´ brake (1 short tone)

2. ³EHHp-beep-´ battery type (2 short tone)

3. ³EHHp-beep-beep-´ cutoff mode (3 short tone)

4. ³EHHp-beep-beep-beep-´ cutoff threshold (4 short tone)

5. ³EHHp-----´ startup mode (1 long tone)

6. ³EHHp-----beep-´ timing (1 long 1 short)

7. ³EHHp-----beep-beep-´ set all to default (1 long 2 short)

8. ³EHHp-----beep-----´ exit (2 long tone)

NoteORQJ³EHHp-----´ VKRUW³EHHp-´

Move throttle stick

to bottom position

and then switch

on transmitter.

Connect battery pack

to ESC, special tone

like ³ 123´ means

power supply is OK

When self-test is

finished, a long

³beep-----´ tone

should be emitted

Move throttle stick

upwards to go flying

Several ³beep-´ tones

should be emitted to

present the amount of

lithium battery cells

Switch on the

transmitter,

move throttle

stick to the

top position

Connect battery

pack to the

ESC, and wait

for about 2

seconds

The ³Beep-Beep-´ tone

should be emitted,

means the top point of

throttle range has been

confirmed

Move throttle stick to the

bottom position, several

³beep-´ tones should be

emitted to present the

amount of battery cells

A long ³Beep-´ tone should

be emitted, means the

lowest point of throttle

range has been correctly

confirmed

HW-SM003DUL-20130709 1

Summary of Contents

Page 1 - HW-SM003DUL-20130709

User Manual of Brushless Speed Controller

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Hobbywing SkyWalker-20A User Manual

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