Repair Conditions
1. Parts that can be repaired.:•Internal electronic circuitry
Damage caused by incorrect connection, inter-terminal shorting, or driving is not covered bywarranty.
2. Note that this device will not be covered under warranty if the housing has been opened.
3. ACUVANCE assumes no responsibility for damage to the receiver or servo caused by theincorrect connection of this product.
4. Note that if the repair card (located below) or the repair sheet (on the homepage) is not properly
filled out, repair and return of the ESC may be delayed.

Warranty
Item
Manufactureno.

XARVIS XX

Customer
Address
E-mailPhone
number (@Purchasedate(M/D/Y)

Warranty
term

3 months from purchase date

)

/

/

XARVIS XX Owner's Manual

Phone no.

Name
Note that if the date and location of ESC purchase are not entered on the warranty card, you will
be charged for repairs even within the warranty term.
● If a failure occurs within three months of purchasing the ESC, write the symptoms of the problem
and operating conditions in the section below and attach this to the product. For repair, send the
ESC to the distributor where you purchased the product or directly to ACUVANCE (Technical
Service Department).
● ACUVANCE assumes no responsibility for damage or losses that occur during transportation.
Please take note of this beforehand.
● When listing the symptoms for a repair request, you can conveniently use the repair request
sheet on the ACUVANCE homepage and then send this along with the warranty card.
(Click the “repair” section located in the upper-right side of our website. Then click “repair
request sheet”, located on the left side.)

Repair card
1. Symptoms

Write the symptoms of the problem,
giving as much detail as possible.

2. Payment for repair charges
I would like to be contacted if there is compensation※Though it depends on the details of the repair, indicating in advance that no contact is necessary will
normally shorten the time is takes to complete the repair.

Technical Service Dept.
7F, Shin-Osaka Marubiru Annex 1-18-22
Higashinakajima Higashiyodogawa-ku
Osaka 533-0033 Japan.
FAX +81-6-6379-1190
www.acuvance.co.jp/english

Shop name (address, and phone. no.)330290-1

PRECAUTION FOR USE
Before using this product, carefully read the important warnings
described in this instruction manual to understand the instructions thoroughly.
DANGER Instructions that the user must observe to prevent serious injury.

WARNINGWARNINGCAUTION

Instructions that the user must observe to prevent accidents.
Useful information for handling this product.

About batteries
DANGER

To prevent fumes, ﬁre, or burns

Improper use of the battery is very dangerous. The battery must be handled carefully.
Incorrect wiring or short-circuiting of wiring may cause fire or fumes. Before
connecting or disconnecting the battery to or from the speed controller (ESC), be
sure to turn oﬀ the power switch of the ESC. When the battery is not in use,
disconnect it from the ESC or charger, and store it in a suitable location free of any
loose wires or screws.

About cable Connections
DANGER

To prevent fumes, ﬁre, or burns

Incorrect wiring may cause fire or fumes that can damage both the ESC andbattery beyond repair.

About
DANGER

Thank you for choosing XARVIS XX. This product is a high-performance speed
controller for drivers seeking the top end. Please read this instruction manual
carefully before using this product, and use it correctly and safely. Please keep it
carefully after reading.

FEATURESThis new ESC is equipped with a high-performance MOSFET of the industry's
highest peak(currently when this product was released / according to our research).
As a result, output performance such as torque and efficiency has been greatly
improved.
XARVIS's unique “bridge type FAN floating structure” is further evolved togreatly increase the ventilation capacity.
Equipped with two ACUVANCE cooling fan terminals (including FLEDGE fan)Equipped with capacitor mounting terminal
Equipped with reverse battery protection circuit (see page 22)
BEC voltage switching (6.0V / 7.4V) function (see page 20)
Supports bidirectional communication with TAO II, Ne-St, FUTABA S.BUS
system compatible transmitters, etc.
※This product needs to be updated to use the S.BUS system (see ACUVANCE
website).
Equipped with a new program control circuit to secure additional setting items
for only XARVIS XX

Please check our website and official Twitter for details on the features and thelatest information. (@ACUVANCE_JAPAN)

Specifications
To prevent burns

The surface of the body can be extremely hot after heavy load driving. Pleasehandle the unit carefully after operation to avoid risk of burn.

Handling precautions
WARNING To avoid accidents or product failure
Do not modify the ESC in any way. Use it only for its intended purpose. Keep the
ESC away from flames or seat. Avoid splashing any liquid, such as water, on the
ESC.

2

FEATURESPower Supply

6.0V〜8.5V

Continuous/spontaneous max current

Max. current of battery

Compatible motors

Sensored motor - unrestricted (when boost turbo is disabled)

Dimensions

W30.5×D35.0×H20.5mm

Weight47.2g

Regulator for receiver/servo

6V/5A or 7.4V/5A output

INDEX
P.4
P.6〜P.9
P.10〜P.21

How to connect
conthe ESC
Preparations Before Driving Tuning
the Driving Experience3PART NAMES AND WIRINGDANGER• POWER BUTTON

To prevent fumes, fire, or burns

Be careful not to reverse the battery poles. Doing so can cause the ESC to fail.

Please connect asshown below

Side Layout
Cooling
FAN ①

Rear Layout
Sensor Cooling RX Terminal
FAN ②

SENSORFAN

LINK terminal

FAN - + S
RX

POWER button- + S

XARVIS XX body
The throttle channel(CH2)RX Cable from the receiver

Sensor cable

SET button

Capacitor[Behind]Reverseconnection
alert LED
(see P.22)

It is the button to turn the unit ON or OFF.

• LINK TERMINAL
Terminal for communication with TAO II, Ne-St. Air-Link Adapter (OP-15065),
S.BUS Adapter (OP-15067), etc. are also connect here.

• SET BUTTON
It is used for setting change in the XARVIS XX main unit. It is also used to switch
between "ESC mode" setting of the main unit, and "Link mode" setting with TAO
II.

• COOLING FAN CONNECTION TERMINAL 1 2
ACUVANCE optional cooling fan or fan connection terminal with our motor.
It doesn't matter if you use either terminal ① or ②.
Since it is designed exclusively for ACUVANCE cooling fan, other manufacturers'
cooling fans cannot be used.
(If you use a fan of a different brand, the fan may be damaged.)

WARNING

If the sensor cable is not connected, has not been properly inserted, has been
disconnected, or is loosely connected, all the LEDs will blink (highspeed
blinking). While in this state, all operations will not be received. If this occurs,check the connection for the sensor cable or replace the cable.

WARNING

When inserting the connector, pay attention to the way in which it being inserted.
If inserted backwards, the device will not operate.

WARNINGBe sure to match the cables to the symbols A, B, and C on the ESC. Failure tofollow this precaution can result in loss of control over the motor speed, or
subject the ESC and motor to large currents. Unlike brushless motors without asensor, swapping these cables does not change the rotating direction of the
motor. If necessary, change the direction of rotation at the ESC※.
※ To switch the direction of rotation, it is essential to have the rotation directionchange function in the ESC. This machine has this function (P.16)

Battery cables

WARNING

When replacing the motor cable, use a soldering iron with a broad tip and highoutput rating (as high as 60 W) and work swiftly. A soldering on with the low
output rating will not melt enough of the solder resulting in a poor soldering
connection which can cause cables to loosen under vibration or loose
connections. Also, subjecting the internal parts to excessive heat over prolonged
periods (10 seconds or more) can damage them. (Be careful not to shortcircuit
the terminals with solder)

WARNINGBe sure to use screws with a length of 8 mm or less to secure the motor to themotor mount. If the screw is too long, it may interfere with parts inside the motor,
resulting in malfunctions such as short circuit.

Motor Cable C
Motor Cable B
Motor Cable A

4

Sensored Brushless Motor

5

PREPARATIONS BEFORE DRIVING
When using for the first time, the neutral position of ESC with the transmitter you
have will not match. If you try driving before the initial setting is completed, themotor may start rotating at the same time as the switch is turned on. Since it isvery dangerous, be sure to perform the following "initial setting of the radio
throttle position" when turning on the power for the first time.
(The motor will not rotate during initial setting.)of the neutral point>>
3 <<Setting
While the LED blinks green, set the transmitter
throttle to the neutral position and press the
POWER button briefly. After that, the blue LED
will blink.

Initial setting of radio throttle position
Immediately after purchasing or immediately after replacing the transmitter, it isnecessary to store the neutral point, forward MAX point and reverse (brake) MAX
point of the transmitter in the ESC. Follow the procedure below.
Preparations

Before setting, please set all settings (EPA = endpoint adjustment, maximum
braking amount, etc) for the throttle of the transmitter to a neutral position (zerovalue). If the settings are different, the ESC may not detect the throttle input andcalibration will not be performed successfully.
When performing the initial setting, be sure that the sensor cable is connected to

Preparations the motor and ESC. If the sensor cable is not connected, has not been properly

inserted, has been disconnected, or is loosely connected, all the LEDs will
blink(high-speed blinking). Check the connection for the sensor cable or replace
the cable as all operations will not be received while it is in this state. Also, in
assition to when performing the initial settings, the sensor cable should always beconnected when the vehicle is being driven.
The three motor cables (A, B, C) may be left disconnected but be careful to nothave the cable connectors touch each other as they will short.
If performing the initial settings with the motor cables connected, secure the motor
Preparations
in a motor mount or other device, and remove the pinion gear to keep the car frommoving unexpectedly.

How to Calibrateof the high point>>
4 <<Setting
While the blue LED is blinking, set the throttleon the transmitter to the maximum forward
position and press the set button on the ESC
once. The red LED will start blinking.

making calibration>>
5 <<Before
While the red LED is blinking, set the throttleon the transmitter to the maximum reverse
position of Step 4, and press the set button on
the ESC once. All LEDs will blink three times.

*“SSR mode” is an original system from Sanwa Denshi Co. Ltd.

connected to the battery, motor (only the Sensor cable needs to be connected),
and receiver. Then turn the transmitter power on.
Press and hold the POWER button
for 2 to 3 seconds

2 If you press and hold the POWER button<<Calibration mode>>for 2 to 3 seconds while the power is OFF,the LED green blinks 3 times at the sametime, the LED green starts blinking and theinitial setting mode is entered. Thenrelease the POWER button.

6

Press POWER buttonGreenblinkingLEDchanges toBlueblinking
LEDMax. forward position
Press POWER button※If the red LED does not blink after pressing theset button with the throttle at the maximum forward
position, set the throttle to the maximum reverse(brake) position and then press the set button
once.

Supports SANWA super response <SSR> mode

making calibration>>
1 <<Before
Be sure the ESC power is turned oﬀ, and make sure the ESC is properly

Neutral position

This completes the initial settings for the transmitter
positions. The ESC automatically changes to thestandby mode (p. 8).

BlueblinkingLEDchanges toRedblinking
LEDMax. reverse position
Press POWER buttonRedblinkingLEDchanges to
All LEDs
Blink threeTimes

Important If you performed the procedure described by the ※ under Step 4 above, <<Setting

the high point>>, switch the throttle channel on the transmitter between normal andreverse after completing the initial setting for all transmitter positions.

LED Green · Orange
Blink for 3 seconds
at the same time

Caution The throttle position for the transmitter may become misaligned due to changes or

LED blinking

Powering OFF

deterioration over time.If the LED lights are flashing while the ESC is in standby
mode, readjust the initial settings for the transmitter.

Press and hold the POWER button for 2 seconds toturn off the power.

7

PREPARATIONS BEFORE DRIVING
Verifying the transmitter positions have been correctly set to their initial settings
The standby LED (see below) should be the only one illuminated when the throttle is in
the neutral, maximum forward, and maximum reverse (brake) positions. If the Stanby
LED is unlit in all other positions, the initial setup has been completed properly.
(The standy LED is the only LED that alternately illuminates and goes out when
adjusting the throttle)
Max. forward position

Standby LED lit

Neutral position

unlit

Max. reverse position

Standby LED lit

unlit※Depending on the configuration of the vehicle, the car may move in reverse when the throttle
is operated in the forward direction. If your car displays this behavior, change the rotation
direction of the motor (P.16).

Checking standby mode

①

②

③

④

Stanby mode at time of shipment① LED<green> : Factory shipped condition = unlit※ If the battery voltage becomes lower than the cutoff voltage (P.16) whiledriving, the green LED will blink and the car will drive at extremely low
speeds. If this occurs, replace the battery.
② LED<blue> : Factory shipped condition = lit
Standby LED when setting mode (P.10) is in ESC mode. Unlit during Link
mode.
※ Under "ESC Mode", <blue> LED will be blinking if the program selected(P.12) is "Boost/Turbo Disabled", or both "Full Boost Timing"(P.17) and "FullTurbo Timing" (P.19) are disabled.

8② LED<orange> : Factory shipped condition = lit
Illuminated when the reverse drive feature (P.16) is set to ON. Unlit when set toOFF.
※ If the ESC heats up to temperature limits while driving, the motor will remain
at low speed and the Orange LED will blink. If this situation occurs,
discontinue operation until the ESC temperature drops back to ambient
temperature. If the Orange LED starts blinking after driving for only a brief
period of time, check to see if the gear ratio settings are overloading the
motor.

Standby LED lit

If the standby LED does not follow this lighting pattern, the initial setting was notcompleted properly. Make sure the throttle related adjustment on the transmitterare initialized and the RX cable is properly connected to the receiver. Then, retry
the initial setting procedure.

At the time of shipment, the standby
mode is as shown in the figure on theright. Each LED has the following
meaning.

② LED<red> : Factory shipped condition = unlit
Standby LED when setting mode is in Link mode. Unlit during ESC mode.
※ Under "Link Mode", <red> LED will be blinking if the program selected (P.12)
is "Boost/Turbo Disabled", or both "Full Boost Timing"(P.17) and "Full Turbo
Timing" (P.19) are disabled.

[Important] Safety feature for driving in reverse
On radio controlled cars, the same throttle controls are used for braking anddriving in reverse. This can cause car to move backward when the intention is to
apply the brakes. Suddenly trying to reverse the motor while it is rotating forward
can place severe stree to the gears, motor, and ESC, sometimes resulting ininternal damage. The XARVIS XX is equipped with the following feature toprevent this.
After applying the brakes, before reversing, the ESC will wait 1 second or more
for the throttle to return to neutral and for the the motor to go from rotating in a
forward direction to coming to a complete stop (it will not go into reverse within
the span of 1 second).
This feature prevents unintentional reversing even if the reverse drive feature is
set ON on the ESC. It prevents damage to the drivetrain of the car and potential
collision with other vehicles, as well as many other possible problems, and isessential to allow short braking action when turning corners.
※ Note, this safety feature cannot be disabled. However, as detailed in [Reverse
drive ON/OFF and motor rotating selection](P.16), when configuring to
crawleroriented settings, vehicle movement that occurs once the throttle isplaced in the brake position will be specialized for reverse driving (the brake
will not work), thus disabling this function.
This completes the preparation before driving. Connect the motor and enjoy
driving.
※ When using lithium polymer batteries, set the cutoff voltage before driving to 3.2V/cell (1recommended)(P.16)

9

TUNING THE DRIVING EXPERIENCE
Select mode (when Setting mode = ESC mode

Selecting setting modes
First, select either [ESC mode] or [Link mode].Select ESC mode to adjust various
features on the ESC, or Link mode to change function settings for the effector. At
time of shipment, ESC is set to ESC mode.
Press the set button
For 4 seconds or longer

SelectingSetting Modes

mode, press and hold1 Inthestandby
set button for 4 seconds or longer.

LEDs (blue & red) alternately blink
2 The
indicating the setting mode is now active.

Repeating the same procedure alternates between [ESC mode](blue) and [Linkmode](red).
Important The numerical setting ranges and unit of adjustment differ depending on the mode
selected (P.12 to 20). Refer to the following section for setting procedure in ESC
mode, or the instruction manual supplied with the programming card for setting
procedures in Link mode.

In Standby mode (P.8), quickly press the set button once.
The green LED will start blinking indicating the ESC is in
Select mode. (While in Select mode, the motor will not rotate
even if the transmitter throttle is operated.)
Green

Select mode
(blinking green LED)

Press the SET
Button once

Orange(Ex.)

Neutral brake power adjustment is selected(Blinking orange LED)

Each time the SET button is pressed briefly, the flashing LED is switched toindicate the currently selected setting item (see the setting items below for
details). Also, pressing the SET button twice shortly will return to the previous
item.

Flow for changing setting and ESC mode
※ If the initial settings have not been completed, the following procedure cannot be performed.
Save destination selection mode > Standby mode.
After selecting the save destination, press the set button
for 2 seconds or longer

Select the savedestination

Standby mode

(P.20)(Driving disabled)(p.8)(Driving enabled)Standby mode > Select mode
Quickly press the set button
once

Select mode > Standby mode
Quickly press the set button 3times in rapid succession.

※ Changes will not be saved.

Select mode > Save destination selection
Quickly press the set button 4 times in
rapid successions.

Select the setting to change
Select mode (P.11)(Driving disabled)

Select mode > Setting mode

After selecting the item you wish to change,press and hold the set button for 2 seconds
or longer

Select mode > Setting mode

Set to desired value, then press and holdthe set button for 2 second or longer.

Change the value in the selected item
Setting mode (P.12)(Driving disabled)

10

Description of each blinking LED pattern(For details of each item, see the following pages)[Green flashing twice] Load Program[Grn+Blu+Red flashing twice]Operation mode

[Blue flashing twice]Drive Frequency[Blu+Red+Org flashing twice]Cutoff Voltage[Red flashing twice]Neutral Brake Frequency[Green flashing 4 times]Full Boost Timing[Orange flashing twice]Brake Frequency[Blue flashing 4 times]Boost Start RPM[Green+Blue flashing twice]Initial Speed[Red flashing 4 times]Boost Stop RPM[Green+Red flashing twice]Neutral Brake Power[Grn+Red flashing 4 times]Full Turbo Timing[Green+Orange flashing twice]Initial Brake Power[Blu+Red+Org flashing 4 times]Turbo Start Time[Blue+Red flashing twice]Full Brake Power[Verifying your current settings]
In Select mode, set the LED to the item you want to the check the value of,after 2 seconds the LED representing the item & the LED representing thevalue of the item will blink alternatively. ( The LED indicate the item
selected> <The LED indicate the value of the selected item)※ Pressing the SET button once returns to the Select mode.
※ Refer to P.12 to 20 for the meaning of each displayed values.
※ With "Load Program", the value LEDs won't always be displayed.

11

TUNING THE DRIVING EXPERIENCE
Setting mode (in ESC setting mode)
Changing to Setting mode
While in Select mode (P.11), move the LED to the setting to be changed using theSET button. Press and hold the SET button 2 seconds or longer. This activates
the Settings mode. (While in Settings mode, the motor will not rotate even if thetransmitter throttle is operated.)① Load program (green flashing twice)In the select mode(green blinking twice), press
the SET button for 2 seconds or more to enter
the setting mode . Each time the SET button ispressed briefly, the LED pattern changes andthe program changes accordingly as shownon the right. Align the LED with your favorite
program, and press the SET button for 2
seconds or more. The program is now set andthe LED returns to the select mode (green
blinking). It is also possible to call the preset
program and change each function to thesetting of your choice.

About user program

Commentary The lower the value = strong initial punch/loweredsmoothness. The higher the value = small initialpunch/ increased smoothness

4KHz
8KHz
16KHz
24KHz

③ Neutral brake frequency (red flashing twice)
Drift
Boost / Turbo Disabled
Touring
Offroad 2WD
Offroad 4WD
User program①

In the select mode with the red LED flashing twice, press
the SET button for 2 seconds or more to enter the setting
mode. Each time the SET button is pressed once, the LED
pattern changes and the neutral brake frequency changes
as shown on the right. Adjust the LED to the setting of yourchoice and press the SET button for 2 seconds or more.
The set value is validated and it returns to select mode. Thechanged value will be reset if the power is turned off
without saving. Please save your settings before tunring
your unit off (P.20).

2KHz
4KHz
8KHz
16KHz

Commentary The lower the value = quicker braking

The higher the value = smoother braking

User program②

This is the area to store each set item on this unit. There are two storage areas (userprograms ① and ②) on this unit, but if you need to store more programs, please use TAO II(sold separately).
Additionally, once all your settings have been adjusted, you can save into a user program.

Caution If the power is turned off without saving to a user program, the settings will be lost.
Important When "boost / turbo disabled" is selected, boost and turbo function (item (11) andlater described below) can not be used. In this case, ⑪ to ⑮ are skipped in selectmode. Also, the timing angle is fixed at 0 °.

② Device frequency (blue flashing twice)
In select mode, the blue LED blink twice, press the SET button for 2 seconds or more toenter the setting mode. Each time the SET button is pressed once, the lighting LEDchanges and the drive frequency changes as shown on the right.

12

Adjust the LED to the setting of your choice and press theSET button for 2 seconds or more. The set value isvalidated and it returns to select mode. The changed value
will be reset if the power is turned off without saving.
Please save your settings before tunring your unit off(P.20).

④ Brake frequency (orange flashing twice)In the select mode with the orange LED flashing twice,press the SET button for 2 seconds or more to enter thesetting mode. Each time the SET button is pressed once,
the LED pattern changes and the brake frequency changes
as shown on the right. Adjust the LED to the setting of yourchoice and press the SET button for 2 seconds or more.
The set value is validated and it returns to select mode. Thechanged value will be reset if the power is turned off
without saving. Please save your settings before tunring
your unit off (P.20).

2KHz
4KHz
8KHz
16KHz

Commentary The lower the value = quicker braking

The higher the value = smoother braking

13

TUNING THE DRIVING EXPERIENCE⑤ Initial speed (green+blue flashing twice)In the select mode with the green+blue LED flashing
twice, press the SET button for 2 seconds or more toenter the setting mode. Each time the SET button ispressed once, the LED pattern changes and the initial
speed value changes as shown on the right. Adjust the
LED to the setting of your choice and press the SET
button for 2 seconds or more. The set value is validated
and it returns to select mode. The changed value will bereset if the power is turned off without saving. Pleasesave your settings before tunring your unit off (P.20).

0%
8%
14%

16%

Commentary It is the brake power that is applied once the throttle
is placed in the brake position. The higher the value= stronger initial braking force

26%

4%
8%

Commentary It is the brake power that is applied when the throttle is in fully braked position.The⑥ Neutral brake power (green+red flashing twice)throttle is returned to neutral. The higher the value =increased braking force

12%

In the select mode with the blue+red LED flashing
twice, press the SET button for 2 seconds or more toenter the setting mode. Each time the SET button ispressed once, the LED pattern changes and the fullbrake power value changes as shown on the right.
Adjust the LED to the setting of your choice and press
the SET button for 2 seconds or more. The set value isvalidated and it returns to select mode. The changed
value will be reset if the power is turned off without
saving. Please save your settings before tunring yourunit off (P.20).

the value = higher speed at the beginning of your throttle. Excessive initial speed
can cause tire spin or chip gears. Choose your setting carefully.

Commentary It is the amount of braking force applied when the6%⑧ Full brake power (blue+red flashing twice)Commentary It is the amount of speed as soon as you begin to pull your throttle lever. The higher

In the select mode with the green+red LED flashing
twice, press the SET button for 2 seconds or more toenter the setting mode. Each time the SET button ispressed once, the LED pattern changes and theneutral brake power value changes as shown on theright. Adjust the LED to the setting of your choice andpress the SET button for 2 seconds or more. The set
value is validated and it returns to select mode. Thechanged value will be reset if the power is turned off
without saving. Please save your settings before
tunring your unit off (P.20).

changes as shown on the right. Adjust the LED to thesetting of your choice and press the SET button for 2
seconds or more. The set value is validated and it
returns to select mode. The changed value will bereset if the power is turned off without saving. Pleasesave your settings before tunring your unit off (P.20).

0%

10%
12%
14%
16%

70%
80%
90%
100%

higher the value = stronger braking force at full braking

AdviceBraking forceMAX
The braking force of thebrake when the throttle isin the middle range islinked with the initialbrake power (item ⑦) andthe full brake power (item⑧) as shown on the right.

Full brake power

32%⑦ Initial brake power (green+orange flashing twice)In the select mode with the green+orange LED flashing twice, press the SET
button for 2 seconds or more to enter the setting mode. Each time the SET button
is pressed once, the LED pattern changes and the initial brake power value

14

Initial brake power(The instant that the throttle lever is placed in the brake position)

0

Throttle
position

Brake high point

15

TUNING THE DRIVING EXPERIENCE
Commentary It is a function to notify the driver of low voltage condition before the unit reaches⑨ Operation mode (grn+blu+red flashing twice)In the select mode with thegreen+blue+red LED flashing twice,press the SET button for 2 seconds ormore to enter the setting mode. Eachtime the SET button is pressed once,
the LED pattern changes and theoperating mode changes as shown on
the right. Adjust the LED to the setting ofyour choice and press the SET button
for 2 seconds or more. The set value isvalidated and it returns to select mode.
The changed value will be reset if thepower is turned off without saving.
Please save your settings before tunring
your unit off (P.20).

Forward rotation
Forward+Brake
Forward rotation
Forward+Brake+Reverse
Forward rotation
Forward+Brake (for crawlers)
Forward rotation
Forward+Brake
Forward rotation
Forward+Brake+Reverse
Forward rotation
Forward+Brake (for crawlers)

initial settings have been completed properly, the car may go into reverse once thethrottle is applied. If this condition occurs, please use Reverse rotation operation
mode. The orange LED will be lit in standby mode when Reverse rotation is
selected.

Warning With crawler-oriented settings, the brake will not work and the ESC will switch

between forward and reverse instantly. This function must not be used on
non-crawler vehicles otherwise damage to the ESC, motor, or gears may occur.

Disabled
2.8V/Cell
3.0V/Cell
3.1V/Cell
3.2V/Cell
3.4V/Cell

Reference Because the number of cell is automatically recognized, select the voltage per cell.
If set to disabled, pay close attention to your runtime.

conjunction with the motor rpm to further increase motorrpm.

What is the turbo function? It is a function that increase the electronic timing when infull throttle to increase motor rpm.

AdviceIf "boost/turbo disabled" has been selected in Load program, the "boost function" and"turbo function"cannot be used.

The "XARVIS XX" ESC allows to operate either "boost function" or "turbo function"
independently. (When doing so, make sure to use a program other than "boost/turbo
disabled".)Warning When using "boost+turbo"or "boost"only, please use a motor of 8.5T turn or higher.
Damage caused by using a motor with a lower turn count will not be covered bywarranty.

Caution In general,"boost+turbo" function will overload the ESC/motor.Pay close attention
to the heating of the ESC/motor as well as the gear ratio when using thesefunctions.

⑩ Cutoff voltage (blu+red+org flashing twice)16

About Boost / Turbo Function
What is the boost function? It is a function that increase the electronic timing in

When using the "boost/turbo disabled"program, zero timing will be activated, and while instandby, the blue LED will blink in "ESC mode" and the red LED will blink in "Link mode".
This is also known as a "Blinky mode". It allows the user understand at a quick glance that
the ESC is in zero timing mode and that "boost/turbo" is disabled.

Commentary Switched between normal and reverse motor rotation. Regardless of whether the

In the select mode with the blue+red+orange LED
flashing twice, press the SET button for 2 seconds
or more to enter the setting mode. Each time theSET button is pressed once, the LED patternchanges and the cutoff voltage value changes asshown on the right. Adjust the LED to the setting ofyour choice and press the SET button for 2
seconds or more. The set value is validated and it
returns to select mode. The changed value will bereset if the power is turned off without saving.
Please save your settings before tunring your unit
off (P.20).

critical voltage and performance decrease. When the voltage reaches the cutoff
voltage while driving, the green LED will flash and the vehicle will travel very
slowly. When disabled is selected, this function will not work. Please be careful
about your runtime and other conditions.

⑪ Full boost timing (green flashing 4 times)
In the select mode with the green LED flashing 4 times,
press the SET button for 2 seconds or more to enter
the setting mode. Each time the SET button is pressed
once, the LED pattern changes and the boost timing
value changes as shown on the right. Adjust the LED
to the setting of your choice and press the SET button
for 2 seconds or more. The set value is validated and it
returns to select mode. The changed value will bereset if the power is turned off without saving. Pleasesave your settings before tunring your unit off (P.20).

0deg
15deg
25deg
45deg

Commentary This determines the maximum value (terminal value) for timing increased throughboost.

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TUNING THE DRIVING EXPERIENCE⑫ Boost start rpm (blue flashing 4 times)
In the select mode with the blue LED flashing 4
times, press the SET button for 2 seconds or more
to enter the setting mode. Each time the SET
button is pressed once, the LED pattern changes
and the boost start rpm value changes as shownon the right. Adjust the LED to the setting of yourchoice and press the SET button for 2 seconds ormore. The set value is validated and it returns to
select mode. The changed value will be reset if thepower is turned off without saving. Please saveyour settings before tunring your unit off (P.20).

⑭ Full turbo timing (green+red flashing 4 times)
5,000rpm
10,000rpm
15,000rpm
20,000rpm

Commentary This determines the motor rpm at which the boost will begin to operate. As this rpm
value is set lower, boost will operate from a lower speed/rpm point.

Caution When set low, it is necessary to lighten the drive load and adjust your gear ratio.

⑬ Boost end rpm (red flashing 4 times)
In the select mode with the red LED flashing 4
times, press the SET button for 2 seconds or more
to enter the setting mode. Each time the SET
button is pressed once, the LED pattern changes
and the boost end rpm value changes as shownon the right. Adjust the LED to the setting of yourchoice and press the SET button for 2 seconds ormore. The set value is validated and it returns to
select mode. The changed value will be reset if thepower is turned off without saving. Please saveyour settings before tunring your unit off (P.20).

0deg
12deg
20deg
30deg

Commentary This determines the amount of turbo timing added at full throttle.
Important When using both boost and turbo function at the same time, make sure the total
value of full boost timing and full turbo timing are less than 60°⑮ Rev-Limiter rpm (blu+red+org flashing 4 times)
15,000rpm
20,000rpm
30,000rpm
40,000rpm
50,000rpm

Commentary This determines the motor rpm at which the boost will end. As this rpm value is set
higher, boost will operate to a higher speed/rpm point.

Caution Please make sure to set the boost end rpm higher than the value of your boost
start rpm. The sudden jump in timing may overload the ESC, therefore it is advised
to start with a much higher boost end rpm and progressively lower timing as you
get comfortable with your gearing.

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In the select mode with the green+red LED
flashing 4 times, press the SET button for 2
seconds or more to enter the setting mode. Eachtime the SET button is pressed once, the LED
pattern changes and the full turbo timing valuechanges as shown on the right. Adjust the LED to
the setting of your choice and press the SET
button for 2 seconds or more. The set value isvalidated and it returns to select mode. Thechanged value will be reset if the power is turned
off without saving. Please save your settings
before tunring your unit off (P.20).

In the select mode with the blue+red+orange LED
flashing 4 times, press the SET button for 2
seconds or more to enter the setting mode. Eachtime the SET button is pressed once, the LED
pattern changes and the rev-limiter rpm valuechanges as shown on the right. Adjust the LED to
the setting of your choice and press the SET
button for 2 seconds or more. The set value isvalidated and it returns to select mode. Thechanged value will be reset if the power is turned
off without saving. Please save your settings
before tunring your unit off (P.20).

OFF
15,000rpm
30,000rpm
50,000rpm

Commentary This function limits the output of the motor so that the rpm does not exceed the set
value.

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Error signal during driving (LED flashing pattern)

TUNING THE DRIVING EXPERIENCE
Saving user program (current value)
Press the SET button
In SELECT mode, pressing the SET button 4 times
Quickly 4 times
quickly causes all LEDs to flash, and then automaticallyswitches to the display that selects the save destination of
the user program. The green LED is the user program ①,
the orange LED is the user program ②. Each time youpress the SET button, the save destination is switched.
After selecting the save destination, press the SET button
for 2 seconds or more to save it and return to the standby
mode.

Commentary The saved user programs can be called up by the program load function mentioned
earlier.

About the factory preset program
When shipped from the factory, the unit is preset with the [Drift] program (see thetable above for the setting values of each item). Please change each set of value
according to your preference (For changing method, see P.10 to P.19).

Switching of BEC output voltage
In standby mode, press and hold the POWER button andSET button simultaneously for about 2 seconds.
The green LED status changes to OFF or ON, and the BEC
output voltage changes.

press and hold

Below is a summary of the LED signal pattern that occurs when somethingabnormal is detected while driving.
Refer to P.8 to P.9 “Checking standby status” for the LED lighting / flashingpattern in standby mode.
Motor stops with all LEDs blinking 〜 Sensor error
When the sensor signal is interrupted or becomes unstable
for some reason, the motor stops with all the LEDs blinking.
When all the LEDs are blinking, no button operation is
accepted, so remove the battery and turn off the power.

All LEDs blinking[Possible cause of signal generation]
・An error has occurred in the motor sensor.
・Sensor cable has poor contact
・The sensor cable is affected by radiation noise from the motor cable andthe sensor signal is disturbed.
[Workaround]・Replacing the motor sensor
・Replacing the sensor cable
・Install the sensor cable and motor cable as far apart as possible※Disturbance of the sensor signal may cause abnormal heat generation anddamage to the ESC and motor. Do not bundle the sensor cable with the motor
connection cable. Install them as far apart as possible.

[LED green is OFF during standby] BEC output voltage 6.0V
[LED green is ON during standby] BEC output voltage 7.4V
Regardless of the setting mode, the BEC output voltage can be switched using
this procedure.

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MEMO

Error signal during driving (LED flashing pattern)
LED green blinks and runs at low speed ~ Low voltage cut-off
When the ESC battery terminal voltage drops to the cut-off
voltage set on P.16, the standby LED lights up and flashes,
and the green LED will be flashed and drive speed is goingto low.

Green LED blinking

Important The condition to detect the cut-off voltage is not “Battery voltage” but “ESC battery
terminal voltage”. If the contact condition of the connector to which the battery isconnected and the welded state of the solder bonding the connector are
insufficient, that portion will have a large electrical resistance, and the voltage
detected at the ESC terminal will be far below the battery voltage.
If there is a large difference between the set cut-off voltage and the actual battery
voltage at the time of cut-off operation, the reason may be due to the connector towhich the battery is connected or the solder welding location of the connector.
In such cases, the ESC or motor performance may not be fully achieved. It is
recommended to replace the connector or rework the solder.

LED orange blinks and runs at low speed〜

Heat protection

When the ESC overheats due to driving and reaches the
specified temperature, the orange LED blinks in addition to
the standby LED lighting / flashing, and the vehicle runs at
low speed.
In this case, stop driving until the ESC temperature drops.

Orange LED blinking

If the heat protection is activated in a short driving time, the gear ratio setting may beoverloaded. In this case, check each setting status.

Protection circuit for Battery reverse connection
This product is equipped with a reverse battery protection
circuit, so the ESC circuit is protected if the reverse
connection less than about 10 seconds. (Some heat is
generated when the protection circuit is activated.)
When the battery is connected in reverse, the LED on theback of the battery terminal will turn red. Remove thebattery immediately and reconnect it correctly.
※The protection circuit is automatically activatedwhen the battery is reversely connected.

Alert red LED light

C

B

A

+

-

Important This function protects only the ESC circuit board when the battery is reversely
connected. Capacitors connected to ESC such as Chevalier series are notprotected, so be careful when connecting batteries.

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