Radient RC Reaktor Series User manual

WWW.RADIENTRC.COM
50 AMP ESC &4-POLE MOTOR COMBO
BRUSHLESS
50-
30 AMP ESC &2-POLE MOTOR COMBO
BRUSHLESS
30-
Simple • Capable • Safe
Reaktor Series
Brushless Power System
Owner’s Manual
• Entire contents ©2014 Radient RC.
• Before using your product, review all documentation and inspect the products care-
fully. If for some reason you decide it is not what you wanted, then do not continue
with unpacking, setup or operation of your product. Your local hobby dealer cannot
accept a product for return or exchange after partaking in actions that produce
wear and tear.
• Product specifications are subject to change without notice. Due to ongoing develop-
ment, the actual product may vary from images shown.
• This product contains chemicals known to the State of California to cause cancer and
birth defects or other reproductive harm.
• This product is not a toy! (14+) Recommended for ages 14 and up. Adult supervision
required for ages under 18 years old. Contains small parts, keep out of reach of
children 3 years of age and younger.
ENGLISH-US

THIS MANUAL APPLIES TO THE FOLLOWING
COMPATIBLE BATTERIES FOR USE WITH YOUR REAKTOR SYSTEM
GETTING STARTED
2Reaktor Brushless Power Systems
By Radient RC
• Nickle Cadmium (NiCd) / Nickle Metal-Hydride (NiMH)
› 5 (6V) - 8 (9.6V) cells
• Lithium Polymer (LiPo)
› 2s (7.4V) - 3s (11.1V) cells (series configuration)
• Lithium Iron Phosphate (LiFe/LiFePO4/A123)
› 2s (6.6V) - 3s (9.9V) cells (series configuration)
Although great for first time users, Radient RC products are indeed advanced and sensitive
electronics that could result in injury if used improperly. Always use caution and common
sense as failure to operate your Radient RC product in a safe and responsible manner can
result in damage to the product or other properties. Therefore this product is not intended for
use or maintenance by children without direct adult supervision. Radient RC, and your local
hobby dealer shall not be liable for any loss or damages, whether direct, indirect, special,
incidental, or consequential, arising from the use, misuse, or abuse of this product or any
product required to operate or maintain it. Following are some general tips that will help
increase the safe operation and enjoyment of using your charger.
• Always turn on your radio/transmitter before turning on the ESC.
• Always turn on your ESC while holding your vehicle off the ground to prevent
accidental runaways.
• Always ensure your equipment is cleaned thoroughly after use in wet or dusty condi-
tions which left unattended could result in rust or dirt buildup which could prevent
optimal or complete function of the cooling fan and electrical connections.
• Ensure your ESC is set to the proper LVC mode for the type of battery you are using.
• Always use hobby grade batteries with your ESC.
• Operate in an open environment away from property, and cars (never run into the
street for any reason).
• Always disconnect the battery from the ESC after use to prevent accidental over-
discharge and possible fire.
• Never connect the battery to the ESC when the ESC switch is turned ON.
• Always allow the ESC and motor to completely cool before reuse.
• Reaktor30 and Reaktor50 Sensorless Programmable Brushless ESCs
• Reaktor2 and Reaktor4 Sensorless Brushless Motors
• Combination packs of any of the above

3
UNDERSTANDING BATTERIES AND CONNECTORS
INSTALLING AND WIRING YOUR REAKTOR BRUSHLESS SYSTEM...
Simple • Capable • Safe
Batteries:
The Radient Reaktor ESCs can operate with LiPo/LiFe and NiCd/NiMH (NiXX) batteries
which require different LVC operating modes. It is extremely important to choose the cor-
rect operating mode to work with your batteries. Choosing the wrong charging mode can
cause over-discharge of your LiXX type batteries which could lead to fire or explosion. Be
sure to properly identify the battery chemistry and voltage of every pack before attempt-
ing to use it to ensure the correct settings. Some LiPo battery packs are designed to look
like NiXX battery packs. One indication of a LiPo battery is the presence of a balance plug
either exiting the battery with small wires and small plug on the end or a small female
plug embedded into the end of the battery pack. If you are unsure of the battery type you
are attempting to use; please consult your local hobby dealer for assistance.
Connectors:
The supplied battery connector is known as HCT-Plug and it is the most common battery
connector in the industry for high current applications and it can be used successfully
with NiXX and LiXX type batteries. If your existing batteries have different connectors than
what is supplied with this system, it is always better (regardless of battery type being
used) to change the connector on your system than to use an adapter, as long as you
are not reducing the current rating of the connector system. This reduces the electrical
resistance in the system and provides the optimal performance.
WARNING: Always ensure the connector polarity is correct ( [+] to [+] and [-] to [-] )
before connecting the battery to the ESC. The Reaktor ESC uses a RED wire for [+] and
a BLACK wire for [-]. If you connect a battery to the ESC with reverse polarity, the ESC
WILL be damaged and this will not be covered under warranty.
Installation:
Installing your ESC and motor is critical for proper operation. You will need to mount your
components securely to a rigid part of the chassis in your vehicle. It is not recommended
to use a hook and loop type material to secure your ESC as this can come loose in wet
conditions and get damaged.
1. Ensure the mounting surface of the ESC and chassis are clean of debris and oils, use
denatured rubbing alcohol to clean the surfaces.
a. You will need to check the mounting integrity periodically to ensure it remains
mounted in the vehicle. Good RC quality double sided tape can be purchased at
your local hobby dealer.
2. Install the ESC so that the ESC itself and its wires are away from moving or sharp

...INSTALLING AND WIRING YOUR REAKTOR BRUSHLESS SYSTEM...
4Reaktor Brushless Power Systems
By Radient RC
components in the vehicle.
3. Install the switch so that it is easily accessible when the body is on the vehicle, typi-
cally near an edge of the chassis but not sticking over the edge. You want the switch
protected in case of a crash.
a. Typical installation orientation is such that the ON position is facing towards the
front of the vehicle to prevent accidentally turning off during a crash, though it
can also be mounted sideways if appropriate and accessible.
4. Install the motor with the correct length and size screws for your vehicle and set the
gear mesh per your vehicle manufacturer’s recommendations.
a. Review the gearing instructions that came with your vehicle. Since every vehicle
is different, a universal gearing recommendation is not adequate. Consult your
local hobby dealer for assistance in selecting the correct gearing. Some gearing
guidelines are included below.
i. NOTE: for up to 2s LiPo, if you are changing from a brushed motor setup,
it is typically recommended to reduce the pinion gear size by 2 teeth
when changing to a brushless system.
ii. NOTE: for a 3s LiPo, it is recommended to reduce the size of the pinion
gear by an additional 1-2 teeth if possible.
iii. Ultimately the concern with gearing is motor temperature. The correct
gearing can often be determined by a few test runs.
01). While running easy, more gentile on the throttle, you can monitor
the motor temperature in 30 second intervals. If the motor seems
to be getting extremely hot you need to gear down (reduce the
pinion gear size), wait for the system to cool and test again.
02). If the motor does not seem to be getting hot, you can run a bit
harder on the throttle and keep checking the motor temperature.
If after 5 minutes of running the motor is still not hot you can
gear up (increase the size of the pinion gear) and perform the
test again.
WARNING: The ideal running temperature of a Reaktor motor is less than 175 degrees
Fahrenheit. The motor temperature should never exceed 200 degrees Fahrenheit. If
it does, stop running immediately. To test for temperatures this high it is not recom-
mended to use your hands as it is inaccurate and you can get burned. Check with your
local hobby dealer about obtaining an inexpensive temperature gun for monitoring
your system temperatures.

5
...INSTALLING AND WIRING YOUR REAKTOR BRUSHLESS SYSTEM
REAKTOR SYSTEM OVERVIEW...
Simple • Capable • Safe
The Radient Reaktor series brushless motors and ESCs form a great power plant to satisfy
your need for speed and performance as an entry level brushless system. Though the Reaktor
system was engineered for value, performance was definitely a factor. We’ve included some
great features for you to help keep your system running in top shape while keeping your
battery upgrade path open since it is compatible with LiPo batteries.
WARNING: ALWAYS ALLOW YOUR MOTOR TO COOL BETWEEN RUNS. EXCESSIVE
ACCELERATION AND AGGRESSIVE DRIVING WILL CAUSE YOUR SYSTEM TO GET
HOT. EXERCISE GREAT CARE WHEN HANDLING YOUR VEHICLE AFTER RUNNING TO
AVOID GETTING BURNED.
Some great features of your new ESC may include:
• All Weather (except the fan on fan equipped models) and dust-proof. The ESC can
work under water for a short time, but its designed for use in and around mud, snow
and puddles.
› If equipped, please unplug the cooling fan when running the ESC in heavy water,
and after running, please clean and dry the ESC to avoid oxidation of the copper
connectors
• Specially designed for RC cars and trucks, with excellent start-up, acceleration and
linear feeling.
• The sensorless system is efficient, durable and reliable.
• ESC’s include the following programmable features
› 2 running modes suitable for different applications (“Forward with brake” mode,
“Forward/Reverse with brake” mode).
› Proportional ABS brake function with 4 steps of maximum brake force adjustment,
8 steps of drag-brake force adjustment.
› 4 start modes (“Punch”) from “Soft” to “Very aggressive” to be suitable for different
Wiring:
5. Connect the 3 motor wires on the ESC. Any order will work for now but may need
adjustment after setting the ESC to the radio. If the motor turns in the wrong direction,
simply swap any 2 motor wires to change its direction.
6. Secure the excess wire using plastic wire ties, away from any moving parts of the
vehicle and so that they will not fall out of the car during running.
7. Plug the ESC wire into the channel 2 port on your receiver, ensure proper polarity
on the wires.
8. Ensure the ESC is OFF and connect your charged battery (up to 3s LiPo).

...REAKTOR SYSTEM OVERVIEW
6Reaktor Brushless Power Systems
By Radient RC
chassis, tires and tracks.
› Multiple protection features: Low voltage cut-off protection for LiPo or NiMH battery
Over-heat protection.
› Easily programmed with the “SET” button on the ESC or with the LED Program Card
(fan equipped models only).
Once you have completed installing your Reaktor power system you should double check
the wiring for damage or loose connections to ensure everything is in working order before
use. Refer to the diagram below to check the connections of your electronics system. Some
brushless motors such as the Reaktor included with your vehicle use only black wires, this is
okay. On sensorless brushless systems the motor will change operating direction when any
two of the motor wires are swapped.
The Reaktor ESC is programmed to communicate with you, letting you know its status.
• LED Status:
› In normal use, if the throttle trigger is in the neutral range, neither the red LED nor
the green LED light up.
› The red LED lights when the car is run forward or backward and it will flash quickly
when the car is braking.
› The green LED lights when the throttle trigger is moved to the full throttle position.

7
...REAKTOR SYSTEM OVERVIEW
ESC THROTTLE RANGE CALIBRATION...
Simple • Capable • Safe
• Alert Tones:
› Input voltage abnormal alert tone: The ESC begins to check the input voltage
when power on, if it is out of the normal range, such an alert tone will be emitted:
“beep-beep-, beep-beep-, beep-beep-” (There is 1 second time interval between
every “beep-beep-” tone).
› Throttle signal abnormal alert tone: When the ESC can’t detect the normal throttle
signal, such an alert tone will be emitted: “beep-, beep-, beep-” (There is 2
seconds time interval between every “beep-” tone).
• Protection Functions:
› Low voltage cut-off protection: If the voltage of a LiPo battery pack is lower than
the threshold for 2 seconds, the ESC will cut of the output power. Please note that
the ESC cannot be restarted if the voltage of each LiPo cell is lower than 3.5V.
» For NiMH battery packs, if the voltage of the whole NiMH battery pack is higher
than 9.0V but lower than 12V, it will be considered as a 3s LiPo; If it is lower
than 9.0V, it will be considered as a 2s LiPo. For example, if the NiMH battery
pack is 8.0V, and the threshold is set to 2.6V/Cell, it is considered as a 2s LiPo,
and the low-voltage cut-off threshold for this NiMH battery pack is 2.6*2=5.2V.
› Over-heat protection: When the temperature of the ESC is over 105 degrees Celsius
for 5 seconds, the ESC will cut off the output power.
› Throttle signal loss protection: The ESC will cut off the output power if the throttle
signal is lost for 0.2 second.
For proper function, your ESC must be calibrated to your transmitter. While holding your
transmitter approximately 1ft away while setting.
1. Turn Transmitter ON first (transmitter should always be on if ESC is ON.
2. Ensure your Throttle channel (Ch. 2) on your transmitter is set to “Reverse”.
3. Adjust both Throttle and Reverse/Brake EPA settings to 100%.
4. With the ESC OFF, press and hold the Set button near the switch and turn the ESC ON
to enter setup mode. Release the button as soon as the LED begins to flash.

...ESC THROTTLE RANGE CALIBRATION CONTINUED
PROGRAMMING YOUR ESC...
8Reaktor Brushless Power Systems
By Radient RC
5. Without touching the trigger, press button to set the neutral position, GREEN LED
will flash 1 time.
6. Pull/hold full throttle, press the button again, release the trigger, GREEN LED will
flash 2 times.
7. Push/hold full brake/reverse, press the button again, GREEN LED will flash 3 times.
Release trigger.
8. Switch ESC OFF and back ON to complete setup.
9. Check the ESC operation to ensure forward throttle is actually forward, if not, switch
any two of the motor wires and re-check. Then repeat steps 3-8.
The Radient Reaktor is a programmable ESC. Although the default settings should work well
for most users, these settings exist so that you can fine tune the performance of your ESC
to your experience and components. It’s various programmable parameters can be adjusted
either by interfacing with the ESC directly button presses and counting LED flashes, or
via the optional Reaktor Program Box (RDNA0031) which includes a digital readout of the
settings for easier interpretation and faster setup. There are 6 programmable items for your
consideration, below are descriptions of each Item and following is the table and program-
ming instructions for choosing your settings should you choose to change from default
(highlighted in BOLD text).
NOTE: The most important of these settings is the Low Voltage Cut-Off Threshold
(Item 3). Please read the description and usage scenarios below to better under-
stand how to use this feature.

9
...PROGRAMMING YOUR ESC CONTINUED...
Simple • Capable • Safe
Item 1: Running Mode:
1. Forward/Brake: This setting is considered as “Race” mode where the reverse function
is disabled.
2. Forward/Reverse-Brake: This setting is useful for normal operation since it allows for
using reverse throttle to back out of a stuck situation.
a. WARNING: switching from REVERSE to FORWARD throttle position quickly
will cause excess load on the electronics and drivetrain of your vehicle. It
is recommended to come to a stop before changing REVERSE/FORWARD
direction.
Item 2: Drag Brake Force (Automatic Brake):
1. 0%: This setting allows the vehicle to continue to roll after letting off throttle without
applying automatic-brake
2. 5%: Adding some drag brake will make the vehicle a little easier to control, especially
when driving on a closed circuit type course, helping you to slow down and make
turns easier.
3. 10%: Add more until you find the right balance of assistance with slowing down while
still being able to maintain good corner speed without upsetting the vehicle.
4. 15%
5. 20%
6. 25%
7. 30%
8. 40%
Item 3: Low Voltage Cut-Off (LVC) Threshold:
The Reaktor ESC has 6 built in LVC options. It is essential that you use the proper LVC setting
for the type of battery that your are using to achieve the optimal performance and safest
operation from your ESC/Motor/Battery. This setting should be chosen based on the number
and type of cells you are using. For LiPo batteries we recommend setting LVC to #5, using
a setting lower than this may cause over discharge of some batteries and cause damage to
your battery, which could lead to a fire.
1. No Protection: ONLY to be used with NiMH or NiCd type batteries. Since your vehicle
comes equipped with an 8 cell NiMH battery, we have set this mode as the default. The
ESC will run as long as possible, draining all possible energy from the batteries and
eventually your vehicle will cease to function properly.
a. When you notice the operation of your vehicle change, it is time to STOP run-
ning and re-charge your battery.

...PROGRAMMING YOUR ESC CONTINUED...
10 Reaktor Brushless Power Systems
By Radient RC
b. If you are running your vehicle and notice a sudden decrease in power, your
ESC has detected battery voltage that is lower than what should be safely
run without causing damage to your battery or electronic equipment. If you
are using NiMH batteries while this happens and you have only been running
for a very short time, it is very likely that you are mistakenly using one of the
below LVC modes.
2. 2.6V/Cell: This setting will cause the ESC to enter LVC protection mode when the
battery voltage is calculated at the selected voltage or less for more than 2 seconds.
Since the setting is “per cell” this means that if you are running a 2 cell battery, the
voltage protection will activate relative to 2 x 2.6V = 5.2V. This setting is primarily
for use with LiFe type batteries as the lower end of LVC settings. DO NOT USE THIS
SETTING WITH LiPo BATTERIES.
3. 2.8V/Cell: This setting would be the starting point for using LiFe type batteries and is
not recommended for LiPo batteries.
4. 3.0V/Cell: This setting is only recommended for use with extremely high quality and
highly durable LiPo batteries suitable for competition racing. Using a setting this low
with a LiPo battery may cause excessive “wear and tear” on your batteries, shortening
their life-span.
5. 3.2V/Cell: This setting is recommended as the default for running average grade LiPo
batteries. If your batteries are relatively old it is recommended to use setting 6 instead.
6. 3.4V/Cell: This setting can be used with any LiPo battery and will provide the “safest”
discharge level for your batteries however some lower quality batteries do not sustain
their voltage under heavy load and will cause premature LVC activation. Starting here
is a good choice if you are unsure or just want to be extra cautious.
Item 4: Start Mode/Punch (Higher value is more aggressive):
The Reaktor ESC has 4 “punch” profiles that allow you to tune the initial power output of the
ESC to suit your driving, vehicle, and the surface. You will typically want a lower punch setting
when the surface has less traction. To get the optimal performance out of LiPo batteries, on
high traction surfaces, setting 4 is recommended.
1. Level 1 (70%): This setting will provide the smoothest throttle feel and least wheel
spin.
2. Level 2 (80%)
3. Level 3 (90%): This is the highest setting that should be used with high performance
NiMH batteries such as those included with your vehicle.
4. Level 4 (100%): This setting is recommended for use with 4-Pole motors and LiPo bat-

11
...PROGRAMMING YOUR ESC CONTINUED...
Simple • Capable • Safe
teries ONLY and allows you to get the maximum acceleration from your power system.
Choosing a setting higher than #3 for use with NiMH batteries will cause inconsistent
operation of your ESC, including possible momentary power loss. Choosing this setting
when using 2-Pole motors may cause the motor to over heat easier. Use caution.
Item 5: Maximum Brake Force:
The Reaktor ESC has 4 maximum brake force settings allowing you to tune your brakes for
different driving surfaces. This setting works in conjunction with the brake EPA setting on
your transmitter which can still be used to fine tune the braking force, however this setting
affects the initial brake force also. Since your vehicle is using a high performance brushless
motor which has great braking efficiency already, we have reduced the setting to #3. On
some surfaces you may still find this setting to be too high and find that under heavy braking
with 4wd vehicles the rear tires may come off the ground. This is a very unstable situation
and should be avoided at all costs. If this happens, reduce the maximum braking force to a
lower setting. If however you are unable to stop and the lack of deceleration is not due to
wheel slipping, you can increase the braking force.
WARNING: Be sure to check your maximum brake settings by driving from full throttle
to full hard brake in an open area. If the rear tires come off the ground causing a
front flip, the vehicle will tumble out of control and could cause personal or property
damage.
1. 25%: This is the lowest setting and should only be used when driving with slow motors
and on loose (low traction) surfaces.
2. 50%: It is not recommended to go below this setting on asphalt surfaces as the stop-
ping power may not be enough to safely slow your vehicle.
3. 75%: This is the default setting we feel will provide you the best starting point for
many different levels of traction on various surfaces. Remember it is extremely
important to only drive a vehicle as fast as you can safely stop it. If the vehicle hits
something or someone it can cause serious injury.
4. 100%: This setting is only recommended if you are running a slotted type motor,
running this with a slotless style motor combined with a 4wd vehicle will likely cause
front flips thus a loss of control of your vehicle.
Reset to Factory Defaults:
At any time when the throttle is located in neutral zone (except in the throttle calibration
or programming mode), hold the “SET” key for over 3 seconds, the red LED and green LED
will flash at the same time , which means each programmable item has be reset to its
default value.

...PROGRAMMING YOUR ESC CONTINUED
OPTIONAL ESC ACCESSORIES...
12 Reaktor Brushless Power Systems
By Radient RC
Audible/Visual Programming Alerts:
In dirty conditions or with various installations scenarios, visibility of the LED’s may be
obstructed. To assist with setting the ESC parameters you will also be able to hear audible
beeps from the motor that will indicate the value of flashes the LED is transmitting.
To help interpret the beeps and flashes we use a long duration flash and long “Beep---”
tone to represent number “5”, so it is easy to identify the higher quantity of flashes/beeps.
This applies to both the programming parameter selection and also the value of each
programmable item.
• For example, if the LED flashes as the following:
› “1 long flash” (Motor sounds “B---”) = setting #5
› “1 long flash + 1 short flash” (Motor sounds “B---B”) = setting #6
› “1 long flash + 1 short flashes” (Motor sounds “B---BB”) = setting #7
› “1 long flash + 1 short flashes” (Motor sounds “B---BBB”) = setting #8
› “1 long flash + 1 short flashes” (Motor sounds “B---BBBB”) = setting #9
Use the flow chart on the following page to understand and help navigate the menu structure
of ESC while adjusting the parameters.
To assist with programming your ESC we offer an
LED based program box for ESC’s that have a built
in fan/program port. When connected it will give a
digital readout of the current item being programmed
and the setting value. It will also allow you to modify
these settings right on the box. You can purchase
this program box at your local hobby dealer as
part number RDNA0032. Since the program box
communicates with the ESC through the fan port,
you must disconnect the fan and plug in the program
box. Simply plug in the program box and program
with normal sequence but using the box instead of
counting flashes and beeps. Remember to plug the
fan back in when you are done.
NOTE: If you are planning to run in a lot of water, it is recommended to disconnect
the fan from the ESC. Running the fan in water will cause excess load on the fan
and ESC and may cause permanent damage to the ESC and fan.

13
...OPTIONAL ESC ACCESSORIES CONTINUED
Turn OFF ESC and
Transmitter
Press and hold the
SET button then
Turn ON the ESC
RED LED flashes
indicating you are in
program mode
GREEN LED flahes
1 time to set Item 1
Program Item 1:
Running Mode
RED LED flashes to indicate set
value: 1-2, press button to cycle
through available values
GREEN LED flahes
2 times to set Item 2
Program Item 2:
Drag Brake Force
Program Item 3:
LVC Threshold
Program Item N:
“Programmable Item”
RED LED flashes to indicate set
value 1-8, press button to cycle
through available values
RED LED flashes to indicate set
value 1-6, press button to cycle
through available values
RED LED flashes to indicate set
value 1-X, press button to cycle
through available values
GREEN LED flahes
3 times to set Item 3
Continue to cycle through available Programmable Items and set values as desired. We recommend you
start with the default values and adjust only one value at a time to be sure the change has made the
desired effect.
GREEN LED flahes
“N” times to set Item N
HOLD SET BUTTON
HOLD SET BUTTON (3 Seconds)
HOLD SET BUTTON (3 Seconds)
HOLD SET BUTTON (3 Seconds)
HOLD SET BUTTON (3 Seconds)
Turn OFF ESC at any time to confirm setting, turn ON again to
begin using the new settings.
Programmable Items
(Blinks of GREEN LED)
Programmable Value (Blinks of RED LED), Black background indicates default settings
1 2 345678
1. Running Mode Forward
with Brake
Forward/
Reverse
with Brake
2. Drag Brake Force 0% 5% 10% 15% 20% 25% 30% 40%
3. Low Voltage Cut-Off
Threshold
No
Protection
2.6V/
Cell
2.8V/
Cell
3.0V/
Cell
3.2V/
Cell
3.4V/
Cell
4. Start Mode/Punch: Higher
value is more aggressive
Level 1
(70%)
Level 2
(80%)
Level 3
(90%)
Level 4
(100%)
5. Maximum Brake Force 25% 50% 75% 100%
ESC PROGRAMMING MENU...
Simple • Capable • Safe

REAKTOR MOTOR OVERVIEW
14 Reaktor Brushless Power Systems
By Radient RC
Brushless motors function and perform differently from brushed motors. Though they are
constructed differently and in general require less maintenance than brushed motors, they
are not maintenance free. It is recommended that you periodically inspect the bearing near
the output shaft and add a drop of thin bearing oil as needed. In addition to this step, keeping
them clean and dried after use in wet conditions will ensure a long life from your brushless
motor. The Reaktor motor line is made of motors incorporating different parameters in
their design and construction. Below are some major categories used to define the motors
within our line.
Poles: The Reaktor line consists of 2 types of brushless motors, 2-Pole and 4-Pole. The
number of poles in a motor greatly affects the feel of the motors torque characteristics. The
more poles the more torque and higher the load capacity.
• 2-Pole Motors: These motors are great for moderate use in lighter vehicles. They are
the preferred motor type of 2wd vehicles, but they can be used in lighter weight 4wd
products when geared appropriately.
• 4-Pole Motors: These motors are great for heavy use in 4wd vehicles where the loads
are typically much higher. The gearing is not as sensitive as seen with 2-Pole motors
so the motors are generally more durable and have a longer life span. Typically 4-Pole
motors have a lower kV rating to achieve the same speed when compared to a 2-Pole
motor because they can be geared higher.
kV Rating: This is the standard for defining how “fast” a motor is. Though it will not tell you
how fast your vehicle will go, it will tell you how fast the motor will spin at a specific voltage.
For example, a 3000kV motor will spin at 6000rpm when 2V is applied, and there is no load
on the motor. The kV rating is just a way of comparing motors and the potential performance
in a specific application. Important to note is that as the kV is increased, the current draw
through the electronics is also increased and therefore the load on the ESC and battery
increases. In general, the higher kV you go, the higher Amperage rated ESC you need for your
application along with a high current output battery, such as a LiPo.
Sensorless: When the term “sensorless” is used, it refers specifically to the lack of Hall
effect sensors that some brushless motors incorporate. The use of Hall effect sensors and a
sensored ESC can provide very precise throttle feel and control, typically preferred and most
commonly used in racing conditions. Sensorless motors and ESC’s do not have the additional
sensitive electronics. One cannot say concretely that sensored is better than sensorless, they
are just different by design and they each have their application. Since the sensors and ad-
ditional electronics required to utilize them are both expensive and fragile, the Reaktor power
systems have been engineered around durability and value and thus do not incorporate them.

15
...REAKTOR MOTOR OVERVIEW CONTINUED
Simple • Capable • Safe
Our ESC’s and motors are engineered to perform best when used together. Pairing other
brand ESC’s and motors can sometimes lead to poor performance and feel issues, typically
known as cogging but sometimes including more serious problems that could lead to failure
of the ESC. For this reason we recommend only using Reaktor motors with Reaktor ESC’s for
best performance of both products.
BRUSHLESS MOTOR CONSIDERATIONS...
Here are a few topics to consider, not exclusive to brushless motors, but they do apply the
Reaktor line so we think you should not only be aware but also knowledgeable about them.
Please read below for common considerations to take into account when using brushless
motors.
Feeling: The feel of a brushless motor as it accelerates can be quite different from a
brushed motor. Typically referred to as cogging, it is a phenomenon sometimes felt with
brushless motors and more commonly experienced with sensorless motors. This is typically
felt as a slight stutter or hesitation upon accelerating from a stop. It usually only happens
for a very short distance and when very little throttle input is used. As discussed above, the
Reaktor system has been engineered to virtually eliminate cogging. It is important to note
that cogging will create an excess amount of heat very quickly in the motor and ESC. If your
vehicle is experiencing a lot of cogging, it can sometimes be related to inefficiencies in the
drivetrain causing high resistance at low speeds. DO NOT continue to operate your vehicle
if the cogging is constant. Stop and inspect your vehicle and power system for some of the
common issues listed at the back of this manual to help resolve the issue. Continued use
while cogging can lead to damage of both the ESC and motor.
Connection: Your motors are equipped with gold plated bullet connectors that are sized
appropriately for the motor and ESC combination they are designed to work with for load
capacity. These are high current connectors and function great when new, however over
time they may become worn and require replacement. Periodically check the connectors
for excess heat and for a tight connection. If the connectors feel loose where connecting
to the ESC, it could be time to replace the connectors. Consult your local hobby dealer for
assistance.
Gearing and Temperature: The Reaktor line of motors are built with aircraft grade
aluminum on CNC machines to hold the tight tolerances necessary to obtain both high per-
formance and durability.Aluminum is great for heat dissipation and this helps the motor stay
cool. Some applications will create higher loads on the motors than others and you need to
be aware of your motor’s ability to handle that load. When the motor gets too hot, it is having
a hard time handling the load and needs to cool down. Always allow time for your motor to

...BRUSHLESS MOTOR CONSIDERATIONS CONTINUED
16 Reaktor Brushless Power Systems
By Radient RC
cool down between runs. If you notice that your motor temperature is always very high, it is a
sign that you need to adjust the gearing of your vehicle.
• Pinion Gears: Changing to a smaller size pinion gear will typically lower motor
temperatures. It will also slow your vehicle down slightly but it will have more torque
and acceleration.
• Spur Gears: Changing to a larger size pinion gear will typically lower motor tempera-
tures. This has the same effect as a smaller pinion gear but to a lesser degree. Since
the spur gear is so big, changing only a few teeth is a small amount relative to the
total number of teeth, the opposite of a pinion which has fewer teeth.
• Brushless motors will typically continue to work even when they are over geared and
get too hot, however this leads to dangerous conditions which causes the internal
magnets of the motor to fail and can cause the motor to get to dangerous temperature
levels. If the temperature gets too high, some materials inside the motor could melt,
causing the motor to fail. Continued use of a motor that is over geared could also
cause the ESC to fail in some conditions.
Batteries: LiPo batteries are the preferred power source for the Reaktor power system.
They provide excellent power and our systems are engineered to support both 2s and 3s LiPo
battery configurations. As with the gearing above and as previously mentioned with kV, the
more voltage you add with batteries the faster the car will go, but the higher the load on the
motor and ESC and thus the higher the temperature of each. Therefore when moving from
NiMH batteries to 2s LiPo or from 2s to 3s LiPo it is highly recommended that you adjust the
gearing adequately to ensure the motor and ESC remain operating in safe limits. If you are
unsure, test your setup for a short time and check the temperatures, if all seems OK, continue
testing for a few more minutes and then recheck and adjust as necessary. This testing/
checking routine should be done not only when changing one of the components in the power
system, but also when changing the environment that you are operating the system, i.e. dirt,
road, grass, snow, etc.
Repeated starting and stopping or changing directions forward/reverse quickly will
increase the temperature of your electronics. This type of driving is not recommended
and can cause damage to your components that is not covered under warranty. When
performing high speed runs with special short time use gearing and battery configura-
tions, always ensure to reset your system back to known safe operating parameters
for gearing, punch control and LVC.

17
TROUBLESHOOTING PROBLEMS
Simple • Capable • Safe
Before contacting customer support, recall that this is a hobby grade product intended to be
user serviceable. Please take the time to fully inspect your product for any obvious causes to
the issues you are experiencing. Below are some of the most common generic (not neces-
sarily related to this product) issues experienced. Scan the QR code below with your smart
phone for quick access to the product support page on our website.
1. As with TV remote controls in your home, if the batteries are
dead, they don’t work. Dead transmitter or vehicle batteries
will cause products to malfunction and not work properly.
Start power related troubleshooting with fresh batteries in
the transmitter and recharged batteries in the vehicle.
2. Connections between the Battery, ESC, and Motor are critical
to the performance of the product. Running in various debris
may cause foreign objects to snag on wires, causing con-
nections to come loose. It is a good idea to unplug and reconnect motor and battery
connections when beginning power related troubleshooting.
3. Drivetrain issues can mask themselves as power related. Fully inspect the wheels,
driveshafts, and motor for foreign objects that may have become tangled or wrapped
around the spinning parts of the drivetrain. Small objects like fishing line for example,
can wrap around a drive shaft, overheat and melt due to the friction and cause the
entire drivetrain to lock up. Although a big problem, it can be difficult to see when
inspecting. Always remove the wheels from your vehicle when troubleshooting
drivetrain issues.
4. The drivetrain in your vehicle has shafts to drive the wheels. When driving in non
groomed-track conditions, it is common for debris including hair, grass, tree branches,
strings etc. to become wrapped around a drive shaft causing increased drag on the
power system. Inspect you drivetrain for these and other items for possible causes
of your issues.
5. Healthy gears are crucial to a properly functioning vehicle. If you hear your vehicle
making very loud noises, you should immediately stop and check the gears for foreign
debris. Even a small pebble can get lodged into the teeth of the pinion gear, which
would practically destroy the spur gear in a very short period of time.

TROUBLESHOOTING GUIDE...
18 Reaktor Brushless Power Systems
By Radient RC
Problem / Symptom Possible Cause Possible Solution
ESC will not set to transmitter
Receiver and transmitter
not bound
Try re-binding the radio
system
Throttle Channel not set
to Reverse
Unless using Futaba radio,
set Th channel to Reverse
Batteries dead in car or
transmitter Replace batteries
Transmitter is too close
to vehicle
Hold transmitter farther
away from vehicle
After turning ON, the motor
won’t work and no sound
comes from motor
The connections between
the battery and the ESC are
not correct
Check the power con-
nections. Replace the
connectors if they are worn
or damaged
After turning ON the ESC,
the motor won’t operate
normally but instead gives a
beep-beep, beep-beep alert
tone with 1 second interval of
each beep-beep
The input voltage is abnor-
mal, too high or low
Check the voltage of the
battery pack
After turning ON the ESC the
motor won’t operate normally
but instead gives a beep-,
beep-, beep- alert tone with
each beep- having an interval
of one second
The throttle signal is
abnormal
Check the transmitter and
receiver connections. Check
the wire of throttle channel.
Reset the EPA and trim on
transmitter and recalibrate
the ESC to the transmitter.
Car slowed down or stopped
drastically during run
Battery voltage too low,
LVC active Charge or change batteries
ESC over-temp protection
active
Turn off ESC and allow ESC
and motor to cool before
running again
Loss of throttle signal Check transmitter and
receiver, check wiring

19
...TROUBLESHOOTING GUIDE CONTINUED
Simple • Capable • Safe
Problem / Symptom Possible Cause Possible Solution
Random stopping or restart,
irregular operation
Strong electromagnetic
interference in the operat-
ing area
Reset ESC or change opera-
tion location.
Car doesn’t accelerate Ensure the proper punch
mode is used
Change punch mode based
on battery you are using
Reverse not working
Reverse mode has been
disabled in ESC
Follow setup instructions to
turn back on
ESC was improperly set to
transmitter
Re-set to transmitter, ensure
Th channel is set to Reverse
for non Futaba transmitters
EPA on transmitter has been
turned down for reverse
Adjust EPA’s to 100%
and recalibrate ESC to
transmitter
Motor only goes in reverse or
goes in reverse when I pull
trigger to go forward
Throttle Channel not set
to Reverse
Unless using Futaba radio,
set Th channel to Reverse
and reset ESC to transmitter
Motor connected to ESC
improperly Switch any two motor wires
EPA on transmitter has been
turned down for reverse
Adjust EPA’s to 100% and
reset ESC to transmitter

000472-001 (REV A)
This manual suits for next models
2
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