Manual of Sensorless Brushless Speed Controller 

Size

Lipo NiMH

NiCd

L*W*H

6A FLYFUN-6A 6A 8A Linear 5V/0.8A 2 5-6 5.5g 32*12*4.5

10A FLYFUN-10A 10A 12A Linear 5V/1A 2-4 5-12 9.5g 38*18*612A FLYFUN-12A 12A 15A Linear 5V/2A 2-4 5-12 10g 38*18*718A FLYFUN-18A 18A 22A Linear 5V/2A 2-4 5-12 21g 55*25*625A FLYFUN-25A 25A 35A Linear 5V/2A 2-4 5-12 24g 55*25*930A FLYFUN-30A 30A 40A Linear 5V/2A 2-4 5-12 26g 55*25*9

FLYFUN-40A 40A 55A Switch 5V/3A 2-6 5-18 39g 60*24*15FLYFUN-40A-OPTO 40A 55A N/A N/A 2-6 5-18 35g 60*28*12FLYFUN-60A 60A 80A Switch 5V/3A 2-6 5-18 63g 83*31*16FLYFUN-60A-OPTO 60A 80A N/A N/A 2-6 5-18 60g 83*31*14FLYFUN-80A 80A 100A Switch 5V/3A 2-6 5-18 72g 83*31*16FLYFUN-80A-OPTO 80A 100A N/A N/A 2-6 5-18 69g 83*31*14FLYFUN-100A 100A 120A Switch 5V/3A 2-6 5-18 76g 83*31*16FLYFUN-100A-OPTO 100A 120A N/A N/A 2-6 5-18 73g 83*31*14

Available

Cont.

Current

Burst

Current

(>10s)

Battery Cell User Weight

Programm-able

AvailableAvailableAvailableAvailableAvailable

100A

 Fentium Series

BEC

Mode

(Note1 )

BEC

Output

Class Model

Available

40A60A80A

AvailableAvailableAvailableAvailableAvailableAvailableAvailable

Thanks for purchasing our Electronic Speed Controller (ESC). High power system for RC model can be very dangerous, so we 

strongly suggest you 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. 

Features  Extreme low output resistance, super current endurance.  Multiple protection features: Low voltage cut-off protection / over-heat protection / throttle signal loss protection. 

 3 start modes: Normal / Soft / Super-Soft, compatible with fixed-wing aircraft and helicopter.  Throttle range can be configured to be compatible with all transmitters.  Smooth, linear and precise throttle response.  Separate voltage regulator IC for microprocessor (except FLYFUN-6A and FLYFUN-10A) with good anti-jamming capability. 

 Maximum speed: 210000 RPM (2 poles motor), 70000 RPM (6 poles motor), 35000 RPM (12 poles motor).  The pocket-sized Program Card can be purchased separately for easily programming the ESC at flying field. 

 With a program card, user can activate the music playing function of the ESC, and totally there are 15 rhythms can be selected. SpecificationsNote1: BEC means the 3Battery Elimination Circuit ́. It is a DC-DC voltage regulator to supply the receiver and other equipments 

from the main battery pack. With the build-in BEC, the receiver needn¶t to be supplied with an additional battery pack. 

,03257$17  7KH(6&QDPHG3[[[-xxx-2372 ́KDVQ¶WDEXLOW-in BEC, an UBEC (Ultimate-BEC) or an individual battery pack should be used to supply the receiver. And an individual battery pack is needed to power the program card when programming such ESCs, please read the user manual of the Program Card for detail information. Wiring DiagramProgrammable Items 1. Brake Setting˖Enabled / Disabled, default is Disabled 

2. Battery Type˖Li-xx(Li-ion or Lipo) / Ni-xx(NiMH or NiCd)ˈdefault is Li-xx. 

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

output power). Default is Soft Cut-Off. 

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

1) For lithium batteries, the cells quantity of a battery pack is calculated automatically. Low / medium / high cutoff voltage for each 

cell is: 2.85V / 3.15V / 3.3V. For example: For a 3 cells lithium pack, when 3MHGLXP ́FXWRIIthreshold is set, the cut-off voltage 

of this battery pack will be: 3.15*3=9.45V. 

2) For nickel batteries, low / medium / high cutoff voltages are 0%/50%/65% of the startup voltage (it means the initial voltage of a 

charged battery pack), and 0% means the low voltage cut-off function is disabled. For example: For a 10 cells NiMH battery, fully charged voltage is 1.44*10=14.4VZKHQ3Medium ́FXW-off threshold is chosen, the cut-off voltage will be: 14.4*50%=7.2V. 

5. Startup Mode˖Normal /Soft /Super-Soft ,(300ms / 6s 

Normal is preferred for fixed-wing aircraft. Soft or Supe

modes are slower in comparison, usually taking 6 secoto full throttle. If the throttle is closed (throttle stick moupward) within 3 seconds after the initial startup, the re

crash caused by slow throttle response. This special de

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

Usually, low timing or medium timing is suitable for mHigh timing. 

Note2: After changing the timing setting, please te

Begin To Use Your New ESCNote3: ,QWKHIROORZLQJLQVWUXFWLRQVZHXVHWKHZRUGVR

stick. 

Top Position: The throttle value is 100% at this pBottom Position: The throttle value is 0% at this pos

Please start the ESC in the following sequences: 1. Move throttle stick to the bottom position (zero throttle

2. Connect battery pack to the ESC, the ESC begins the 

pack is in normal range, and then N 3beep ́ tones emit

emits, means the self-test is OK, and the aircraft/helico If nothing is happened, please check the battery  If a special tone 3  ́ emits after 2 beep tone

throttle channel of your transmitter is reversed, pl

 If the very rapid 3beep-beep-, beep-beep- ́ tones 

voltage. 

3. 3VERY IMPORTANT! ́ Because different transmitte

read the instruction on page 2------3Throttle Range Set

Alert Tone1. Input voltage is abnormal: The ESC begins to check th

range, such an alert WRQH ZLOO EH HPLWWHG 3beep-bee

second. ) 

2. Throttle signal is abnormal: When the ESC can¶t detec

(Every 3beep- ́ has a time interval of about 2 seconds) 

3. Throttle stick is not in the bottom position: When the th

3beep-, beep-, beep- ́. (Every 3beep- ́ has a time interv

Protection Function1. Start up failure protection: If the motor fails to start wit

stick MUST be moved to the bottom position (zero thrThe connection between ESC and motor is not reliable

2. Over-heat protection: When the temperature of the ES

3. Throttle signal loss protection: The ESC will reduce the 

cause the output to be cut-off completely. 

Program Example 6HWWLQJ3Start MRGH ́WR3Super-SRIW ́LHRSWLRQ #3 of the pro

1. Enter Program Mode Switch on transmitter, move throttle stick to top position, co

emitted. Then wait for another 5 seconds, special tone 3 

2. Select Programmable Items Now you¶ll hear 8 tones in a loop. When a long 3beep------ ́ 3. Set Item Value (Programmable Options) 3Beep- ́, wait for 3 seconds; 3Beep-beep- ́, wait for anothe

position, then a special tone 3  ́ emits, that means y

4. Exit Program Mode After the VSHFLDOWRQH3  ́, move throttle stick to botto

Trouble Shooting

Trouble Pos

After power on, motor does not work, no sound is emitted 

The connepack and ES

After power on, motor does not work, such an alert tone emits: 3beep-beep-, beep-beep-,beep-beep- ́(Every 3beep-beep- ́ has a time interval of 

about 1 second) 

Input voltagor too low. 

After power on, motor does not work, such an alert tone is emits: 3beep-, beep-, beep-  ́(Every 3beep- ́ has a 

time interval of about 2 seconds) 

Throttle sign

5S-6S Lipo

4

BEC Output Capability

Standard micro servos(Max.) 5 4

2S Lipo 3S Lipo 2S - 4S Lipo

5

Linear Mode BEC(5V/2A)

3 2

4S Lipo 5S Lipo

Switch Mode BEC(5V/3A)
Manual of Sensorless Brushless Speed Controller 

Normal startup procedure   Throttle range setting (Throttle range should be reset whenever a new transmitter is being used) Program the ESC with your transmitter (4 Steps)1. Enter program mode 2. Select programmable item 3. Set item¶s value (Programmable option) 4. Exit program mode 

After power on, motor does not work, such an alert tone emits: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, and make sure it is Zero throttle at this position. 

After power on, motor does not work, a special tone 3  ́ emits 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 

The motor stop running while in working state

Throttle signal is lost Check the receiver and transmitter 

Check the cable of throttle channel 

ESC has entered Low Voltage Cut-off Protection mode 

Land RC model as soon as possible, and then replace the battery pack 

S w i t c h o n transmitter, move throttle stick to top

Connect battery pack to ESC, a n d w a i t f o r about 2 seconds

3Beep-Beep- ́ tone emits, means the throttle range highest point has been correctly confirmed

A long 3Beep- ́ tone emits, 

means throttle range lowest point has been correctly 

confirmed

Move throttle stick to bottom and then switch on transmitter. 

Connect battery pack to ESC, special tone like 3 123 ́ means power supply is OK 

When the self-test is finished, a long 3 beep---  ́ tone emits 

M o v e t h r o t t l e s t i c k upwards to go flying 

Several 3beep- ́ tones emits, which means the quantity of the lithium battery cells 

1. Enter program mode 1) Switch on transmitter, move throttle stick to 

top , connect the battery pack to ESC 

2) Wait for 2 seconds, the motor should emit 

special WRQHOLNH3EHHp-beep- ́

3) Wait for another 5 seconds, special tone like 

3  ́emits, 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 the throttle stick to the bottom position within 2 seconds. 

2. In step 2, after hearing 

3EHHp-----beep----- ́tone (that means the item #8), move the throttle stick to the bottom within 3 seconds.

3. Set item value (Programmable option) You will hear several tones in loop. Set the value matching to a tone by moving throttle stick to the top position when you hear the tone, then a VSHFLDOWRQH3  ́ emits, means the 

value is set and saved. (Keeping the throttle stick at the top position, you will go back to step 2 and you can select other items; Moving the stick to the bottom position within 2 seconds will exit the 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 Li-ion / Lipo NiMH / NiCd Cutoff mode Soft-Cut Cut-Off Cutoff threshold Low Medium High Start mode Normal Soft Super soft Timing Low Medium High 

2. Select programmable item 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 beep) 

2. 3EHHp-beep- ́ battery type (2 short beeps) 3. 3EHHp-beep-beep- ́ cutoff mode (3 short beeps) 

4. 3EHHp-beep-beep-beep- ́ cutoff threshold (4 short beeps) 

5. 3EHHp----- ́ startup mode (1 long beep) 

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 beeps) 

NoteORQJ3EHHp----- ́ VKRUW3EHHp- ́

Move throttle stick to the bottom, several 3beep- ́

tones presents the quantity 

of battery cells