User Manual
When flying in hot weather, we recommend checking on the condition of the ESC, battery,
and motor after each flight. You may want to consider letting the electronic components
cool to near ambient temperature between flights. We also recommend throttle management
whenrunningnearmaximumlevelsofcurrentdrawduringextremeconditions.Itisnot
recommended you fly an entire flight at full throttle. If this is done, it is possible to cause
permanent damage to your motor, battery, and ESC.
Using the 80-Amp Pro Switch-mode BEC Brushless Controller
This controller is very simple to use, and for safety, will not arm the motor until the throttle
stickhasbeenheldintheIdle/Offpositionformorethan1second.Thecontrollerwill
indicate the soft cutoff voltage setting every time you plug the battery in by first emitting
a low, long tone, to indicate startup. Depending on the selected cutoff voltage (default is
74%),youwillthenheartherespectivenumberofmediumlengthmidtonestoindicatethe
cellcountoramusicaltoneforthe74%cutoff,helpingyoutoconrmthesettingbefore
every flight. Proper air cooling is required during flights so the ESC should be place in an
area where air flows over the controller. We recommend you change your cutoff
voltage to match the cell count of your battery.
Connecting the ESC to the Motor
The three wires from your motor connect to the three female gold bullet connectors on the
ESC. The order of connection to the motor is not important; you can plug any motor wire into
any connector. When you test the system, the motor runs backwards, you can simply unplug
and switch any two of the motor wire plugs connected to the ESC.
Mounting the ESC
Choose a location that has good airflow and offers good protection. Do not cover the the
side with the flat heat shield with hook and loop or tape as this will greatly reduce its
effectiveness. Mount the ESC with a combination of hook and loop, two-sided foam tape,
and/ortiewraps.
Starting Your Power System
1. TurnonyourtransmitterandensurethepositionofthethrottlestickissettoIdle/Off.
2. Plugthebatterypackintothecontroller.Youwillhear1lowlongtonetoindicate
startup, then the respective number of medium-length mid tones to indicate the cell
countoramusicaltoneforthe74%cutoff,followedby3risingtonestoindicatethe
controller is armed.
3. When you move the throttle stick upward, the motor will run. If you continue to move
the throttle stick upward to the full throttle (high position), the motor will run faster. If
you lower the throttle stick below the start-up position, the motor will stop running.
4. Checkservomotionaspartofyourpreightcheck.Itisveryimportanttomakesure
linkages are free-moving with no binding.
Remember, when in the programming mode:
Full Throttle = Stick Up
Idle = Stick Down
The default settings (from the package) for your E-flite 80-Amp Pro ESC are as follows:
• Voltagecutoffsetat74%*
• BrakesettoOff
• Timingsetat15degrees
• ThrottleInputRangesetat1.2msto1.8ms
• Start-upRate(AccelerationDelay)setat0.25seconds
• PWMFrequencysetat8KHz
• OperatingModesettonormal(airplane)
* Note: We recommend changing the cutoff voltage to match
the cell count of your battery.
Entering the Programming Mode
1. Withthebatterydisconnectedfromthecontroller,andthetransmitterturnedon,rst
movethethrottlesticktofullthrottle(>1.7ms)position.Leaveitinthispositionand
then connect the battery to the controller.
2. Waitfor5seconds,andtheESCwillgivetwosetsoffastringingtonestoindicateyou
have successfully entered the programming mode.
3. Onceyouhearthesetones,movethesticktocenter(between1.4and1.7ms)for5
seconds,andthecontrollerwillbeep1time,indicatingyouarenowinMenu1.
4. Thecontrollerwillnowwait5secondsforyoutomakeyourselection;yourprogramming
optionsareeitherfullthrottle(>1.7ms)oridle(<1.3ms).
5. Whenyouhavemadeavalidselection,thecontrolwillbeeponcewithalowertone,
andyoucanmovethestickbacktocenterforthenextmenuitem(2beeps,3beeps
andsoon).Ifyoudonotmakeaselectionwithin5seconds,thecontrollerwillmoveto
thenextmenuitem.
6. If you want to make changes in the programming menus (see specific instructions
below)movethethrottlesticktofullthrottle(>1.7ms)position.Youwillhave5
seconds to make your selection.
7. Ifyouwanttoadvancetothenextmenu,allowtheprogrammingtoskiptothenext
menuafterthe5secondshaveexpired.
Programming Menu 1 – Voltage Cutoff
Usethisoptiontosetthevoltageatwhichthecontrollerwillshutdownthemotortoprevent
damage to your battery when it reaches the cutoff voltage. You will know your battery pack
has reached auto cutoff when you hear the motor “pulse” repeatedly. We recommend you
change your cutoff voltage to match the cell count of your battery.
1. Movethethrottlesticktofullthrottle(>1.7ms)positiontomakechangestothe
voltage cutoff programming.
a. Toselect3-celllowvoltagecutoff–Youwillhear3shortbeeps.Movethe
throttlesticktocenter(between1.4and1.6ms).Thecontrollerwillbeep2times,
indicatingyouhavesettheprogramselectionorleaveinfullthrottlefor5seconds
toadvancetothenextselection.
b. Toselect4-celllowvoltagecutoff–Youwillhear4shortbeeps.Movethe
throttlesticktocenter(between1.4and1.6ms).Thecontrollerwillbeep2times,
indicatingyouhavesettheprogramselectionorleaveinfullthrottlefor5seconds
toadvancetothenextselection.
c. Toselect5-celllowvoltagecutoff–Youwillhear5shortbeeps.Movethethrottle
sticktocenter(between1.4and1.6ms).Thecontrollerwillbeep2times,
indicatingyouhavesettheprogramselectionorleaveinfullthrottlefor5seconds
toadvancetothenextselection.
d. Toselect6-celllowvoltagecutoff–Youwillhear6shortbeeps.Movethe
throttlesticktocenter(between1.4and1.6ms).Thecontrollerwillbeep2times,
indicatingyouhavesettheprogramselectionorleaveinfullthrottlefor5seconds
toadvancetothenextselection.
e. Toselect74%cutoff–Youwillhear7shortbeeps.Movethethrottlesticktocenter
(between1.4and1.6ms).Thecontrollerwillbeep2times,indicatingyouhaveset
theprogramselectionorleaveinfullthrottlefor5secondstoadvancetotherst
selection again.
IMPORTANTNOTEABOUT74%CUTOFF:Yourbatterypackshouldbefullychargedinthis
voltage cutoff setting because it bases the cutoff on the start up voltage of the pack. This
optionwillactivatethesoftcutoffat74%ofstartupvoltageor9.2V,whicheverislower.
Forexample,ifyourpackmeasures16.8voltsatstartup,thenthesoftcutwilloccurat
12.4volts.The74%cutoffoptionwillcheckthestartupvoltageeverytimeyouplugthe
battery into the controller, so beware of using partially charged packs, as the system cannot
protectyourLi-Pobatteriesifyouareusingthe74%cutoffandconnectapartiallycharged
pack. You will know your battery pack has reached soft auto cutoff when you hear the motor
“pulse” repeatedly. We recommend you land your model as soon as you hear the motor
pulse (indicating the pack voltage has dropped to the cutoff voltage level) to prevent over-
discharge of the Li-Po battery pack, and to prevent sudden power loss.
Programming Menu 2 – Brake Type
The default setting is Brake Off. This option gives you the choice to have the ESC stop the
propellerduringight(BrakeOn)orallowittowindmill(BrakeOff).UsetheBrakeOnoptions
for folding propellers.
1. Movethesticktocenter(between1.4and1.6ms)for5seconds,andthecontrollerwill
beep 2 times, indicating you are now in Menu 2.
2. Movethethrottlesticktofullthrottle(>1.7ms)positiontomakechangestotheBrake
Type programming.
a. ToselectNoBrake/BrakeOff–Youwillhear1shortbeep.Movethethrottlestick
tocenter(between1.4and1.6ms).Thecontrollerwillbeep2times,indicatingyou
havesettheprogramselectionorleaveinfullthrottlefor5secondstoadvanceto
thenextselection.
b. ToselectSoftBrake–Youwillhear2shortbeeps.Movethethrottlesticktocenter
(between1.4and1.6ms).Thecontrollerwillbeep2times,indicatingyouhaveset
theprogramselectionorleaveinfullthrottlefor5secondstoadvancetothenext
selection.
c. ToselectMediumBrake–Youwillhear3shortbeeps.Movethethrottlestickto
center(between1.4and1.6ms).Thecontrollerwillbeep2times,indicatingyou
havesettheprogramselectionorleaveinfullthrottlefor5secondstoadvanceto
thenextselection.
d. ToselectHardBrake–Youwillhear4shortbeeps.Movethethrottlesticktocenter
(between1.4and1.6ms).Thecontrollerwillbeep2times,indicatingyouhaveset
theprogramselectionorleaveinfullthrottlefor5secondstoadvancetotherst
selection again.
Programming Menu 3 – Timing
Thedefaultsettingis15degrees.Asageneralrule,lowerpolecountmotorsuselowertiming
and higher pole count motors use higher timing. Please refer to your motor instructions and
specifications for an indication of the number of poles.
Low Timing Advance
TimingDegrees–5&10
MotorPoles–2to4
ExpectedPerformance–Goodbalanceofpowerandefciency
MotorPoles–6ormore
ExpectedPerformance–Bestefciencyandruntime(lowestpower)
Standard Timing Advance
TimingDegrees–15&20
MotorPoles–6to12
ExpectedPerformance–Goodbalanceofpowerandefciency
MotorPoles–14ormore
ExpectedPerformance–Bestefciencyandruntime(lowestpower)
High Timing Advance
TimingDegrees–25
MotorPoles–12
ExpectedPerformance–Highestpower,lessefciency