Xray XMC300R User manual

#38 9182 XMC300R ELECTRONIC SPEED CONTROLLER
The XRAY XMC300R is bi-directional ESC (electronic speed controller) with electronic brake and reverse suggested for use with
180, 280, and 300 “micro“ motors; it will fit 1/18, 1/20, and 1/24 micro cars.
SPECIFICATIONS
• operated by microprocessor, fully digital controller
• bi-directional ESC for use with up to 300-size motors
• smooth linear regulation of drive from 0% to 100%
• installed electronic brake 100%
• brake responds only after switching from the forward movement
to the reverse movement, braking time is 0.1 sec, after
end of braking the ESC will automatically switch to reverse
• battery elimination circuitry (BEC)
XMC300R TECHNICAL DATA
Input Power: .................................................................................4-6 cell battery NiMH or NiCD / 4.8V-7.2V
Min. Resistance: ............................................................................................................................. 0.032 Ω / 7.5V
Max. Resistance: ................................................................................................................................. 0.040 Ω / 6V
Continuous Current: .......................................................................................................................................max. 15A
Peak Current: ...........................................................................................max. 50A / 0.05 sec.
PWM Frequency: ............................................................................................................900 Hz
BEC: ..................................................................................................... 5V / 0.5A steady, 5V / 1A short-timed
Temperature Range: ..................................................................................................................... 0-40°C / 32-72°F
Dimensions: ........................................................................ 30x19.5x10.5mm / 1.180“ x 0.768“ x 0.413“
WARNING!
•This product is not suitable for children except under the direct
supervision of an adult.
• First-time users should seek advice from people who have experience
with RC cars and who have properly installed and used electronic
speed controllers.
• Never leave your model unattended with the battery connected.
• Be sure that your operating frequency is clear before turning on
or running your model, and never share the same frequency with
somebody else at the same time. Ensure that others are aware of the
operating frequency you are using and when you are using it.
• Always turn on your transmitter before you turn on the ESC or connect
the battery pack. Always turn off the ESC or disconnect the battery
pack before turning off your transmitter.
• Immediately after using your model, do NOT touch the model’s
electronic equipment, as it may be hot.
• When you connect the battery and turn on the electronics, make sure
your car is physically prevented from moving or getting away from
you and causing damage.
• Technical faults of mechanical or electrical nature may cause the
motor to jump into motion unexpectedly, which can cause serious
damage or injury.
INSTALLATION TIPS:
• Mount the ESC in the model car using a double-sided foam tape.
• When installing the ESC in an XRAY model racing car use the supplied screws to install it in the designed location.
• Provide plenty of cooling openings in the car body; this increases the performance and extends the life of electronic components.
• Install the ESC in a location where it is protected from crash damage.
• The ESC should be installed in such a way that you have easy access to the buttons.
• Ensure that there is an adequate distance (at least 3cm) between the ESC and power cables and the receiver or receiver aerial. Avoid direct contact between all power system
components and the receiver or aerial, as this can cause interference. If you encounter interference problems, reposition the components in the model.
• The aerial should be run vertically up and away from the receiver. Avoid contact with any parts made of carbon fiber or metal. If the aerial is too long, don’t coil up the
excess length. Make sure to read and understand the instructions supplied with your radio control system.
• All cables and connectors must be effectively insulated. Short circuits can
ruin your ESC, servo, or battery pack.
• Use only polarized connectors for ESC connections.
• Do not reverse the polarity of the ESC connections.
• If a fault should occur, this could cause a fire in the model and threaten
anything in the vicinity.
• Do not allow any metal part to short circuit the batteries, ESC, or other
electrical/electronic device on the model.
• The ESC is designed exclusively for use in battery-operated radio-
controlled models. No other usage is permissible.
• Like all electronic components, the ESC must not be exposed to water or
fire.
• Do not stall the motor. The ESC will fail within seconds if power is applied
to the motor when the car cannot move.
• When the motor is connected to the ESC, do not connect a separate
battery to the motor to run it. This will damage the ESC and invalidate the
warranty.
• This speed controller is NOT waterproof.
• Always make sure that enough air can get to the speed controller so that
good cooling conditions are achieved.
• Do not modify any parts of the ESC and especially do not modify or change
any of the wires otherwise you void warranty.
• Never leave your model car unattended when the battery is connected.
If a fault should occur the result could be a fire in the model which could
destroy anything else in the vicinity and injury persons.
• Never wrap your ESC in foil or film; air must always be able to flow round
and over the unit.
• Never change the polarity of the receiver plug.
• Never use water or chemicals to clean the ESC.
• Never expose the ESC to extreme heat or cold temperatures.
• Never touch the ESC and any of its parts after a run. It could be very hot
and injure you.
• Never dry the ESC in a microwave oven.
NEVER:
• This ESC is designed to use with micro stock motors and micro motors
up to size 300. Never use this ESC with motors larger than 300 as you
will ruin the ESC.
• Never use this ESC with brushless motors.
• Never run your model car in water, snow or wet conditions. This could
result in an electronic device shorting out and causing a fire.
• Avoid incorrect connections. Reverse polarity will damage the ESC and
void your warranty.
• Do not let output tabs (where wires connect to ESC) touch any other
surface. Never touch the output tabs with any metal parts or conducting
material. This may short your ESC and void your warranty.
• Do not attach a Schottky diode to your ESC or motor. This will ruin the
forward/reverse ESC and void your warranty.
®
SCHOTTKY DIODE
Do NOT use the Schottky diode on the motor when using XMC300R speed controller.
The Schottky diode can be used only with pure forward/brake speed controllers. Using Schottky diode on your motor
when using XMC300R speed controller will destroy the ESC and thus will void the warranty immediately.
CONNECTIONS
The ESC is connected to various components:
MOTOR – red and black wire with female plug,
RECEIVER - black connector
BATTERY PACK - red connector.
The battery used may be 4.8V (4-cell), 6V (5-cell), or 7.2V (6-cell).
SPEED CONTROLLER LED INDICATION INSTALLATION
Follow these steps after you have installed the ESC in your car:
1. Make sure the white switch on the ESC case is in the OFF position.
2. Connect the ESC to the receiver‘s Channel 2 slot.
3. Connect the ESC to the motor: red wire to positive (+) red male wire on
the motor, black wire to negative (-) black male wire on the motor.
4. Check all wiring and connections before you connect the ESC to a drive
battery. Extremely important: incorrect polarity will damage the speed
controller.
5. Connect the red connector of the speed controller to the battery pack.
The ESC is now ready for set-up.
RECEIVER
BATTERY PACK
MOTOR -
MOTOR +
The LED diode is used for indication of the drive direction.
SWITCH
LED DIODE
SET-UP BUTTON
Neutral steady light
Partial Throttle double-flash (repeats)
Full Throttle steady light
Brake flash (repeats)
Reverse triple-flash (repeats)

SET-UP PROCEDURE
The ESC is set-up from the factory for Futaba or JR/Graupner radios ;
users with those radios can skip this section.
TRANSMITTER ADJUSTMENTS
If you transmitter does not feature these set-up functions, it is already in “basic set-up“ mode.
• Ensure that the ESC is not connected to the drive battery, and is switched off.
• Remove the motor pinion, or ensure in some other way that the wheels of the model are free
to rotate.
• Switch the transmitter on.
• Set the transmitter throttle to neutral.
• Connect the ESC to the battery.
• Hold the Set-up button pressed and at the same time switch on the speed controller (white
switch to the ON position).
• After the LED flashes once shortly, the speed controller is ready for Neutral position set-up.
Neutral position set-up
• Leave the throttle at neutral, and press the Set-up button for 1 sec.
• After the LED flashes two times shortly the neutral setting is stored and you can release the
Set-up button.
Full throttle set-up
• Hold the transmitter at full throttle, and press the Set-up button for 1 sec.
• After the LED flashes three times shortly the full-throttle setting is stored and you can release
the Set-up button.
Brake set-up
• Hold the transmitter at full brake, and press the Set-up button for 1 sec.
• After the LED flashes once-long the brake setting is stored and you can release the Set-up
button.
Set-up finish
• After the brake set-up, return the throttle to neutral. The ESC will automatically switch to
ready-to-use mode.
• All the settings are now stored. After you disconnect the battery or switch off the ESC all
settings will remain stored and you do not need to set-up the ESC anymore.
THROTTLE ADJUSTMENT SETTING
High EPA (full throttle) Maximum
Low EPA (full brake) Maximum
Exponential Zero (neutral)
Throttle reversing Either ‘Normal’ or ‘Reverse’
Throttle trim Middle (neutral)
Trigger throw 50% throttle : 50% brake
Steering reversing Reverse
Steering trim Adjust until front wheels point forward.
Steering EPA Adjust steering EPA until wheels reach full lock positions (L&R),
then reduce EPA settings slightly.
TROUBLESHOOTING GUIDE
Car does not react to signals from
transmitter
• Switch on transmitter and ESC.
• Check if all connectors (motor, battery, ESC) are properly connected.
• Check if batteries are charged.
• Check if ESC and servo connectors are plugged into proper receiver channels,
and wire color sequences are correct.
Steering works but motor does not run • Check motor wiring connections.
• Check if ESC is plugged into Ch.2 slot on the receiver.
• Check throttle channel operation with a servo.
• Check wiring color sequence of receive signal harness.
Car goes forward, but does not reverse • Repeat the basic set-up.
Car goes forward, but reverses when
trigger goes to neutral
• Repeat the basic set-up.
• Check if front and rear diffs are both inserted in the diff housings correctly.
Brake or reverse activates when applying
forward throttle at transmitter
• On the transmitter, switch the servo reverse setting for the ESC.Motor runs
slowly/slow acceleration
• Check wiring connections.
• Possible bad motor or battery. Replace and check again.
• Incorrect transmitter adjustment. Refer to ‘Transmitter Adjustments’ section.
Motor runs backwards • Motor wired backwards. Check wiring and reverse.
Receiver glitches/throttle stutters • Receiver or antenna may be too close to ESC, power wires, battery, or motor.
• Possible damaged receiver/transmitter crystal.
• Check wiring connections.
• Motor brushes may be worn. Replace motor if necessary.
• Possible excessive motor current. Use smaller pinion gear.
• Re-adjust transmitter throttle settings (subtrim, neutral position, EPA).
SYMPTOM CAUSE REMEDY
Steering servo works, but
no motor function
Set-up / basic settings problem Repeat basic ESC set-up procedure from start; to store
the function correctly you must hold full-throttle position
while you press the set-up button. Note also that all
transmitters functions must be set as described in the
instructions
Speed control connected to wrong
receiver channel
Speed control must be connected to Ch.2; check polarity
of receiver lead
Motor defective Install new motor
Wiring problem Check cables and connectors
Speed control defective Send ESC for repair
No steering servo function Receiver plug incorrectly wired Check polarity of receiver plug
no motor function Crystal faulty Replace components one by one to locate fault
Receiver faulty
Transmitter faulty
Receiver power supply circuit faulty Check BEC output voltage, or send ESC for repair
Motor does not run when
throttle is advanced;
motor runs when braking
Transmitter throttle polarity
(direction) has been changed
Repeat ESC set-up procedure. Leave transmitter throttle
direction unchanged
No brake function Set-up / basic settings problem Repeat basic ESC set-up procedure from start; see also
“No motor function” description
Speed control faulty Send ESC for repair
Poor braking effect Set-up / basic settings problems Repeat basic ESC set-up (see above), or reset Low ATV,
EPA, ATL or transmitter to maximum
Motor pinion / reduction ratio
too large
Install smaller motor pinion
Insufficient top speed Problem with set-up / basic
settings. Transmitter has been
changed after speed control
set-up, or has changed its own
settings
Repeat basic ESC set-up procedure from start, see also“No
motor function”description
Poor acceleration Motor faulty, brushes sticking Install different motor
Speed control overheats Inadequate cooling Cut cooling openings in bodywork
Motor too powerful, or input
voltage too high
Use less powerful motor, or battery with lower voltage
/ fewer cells
Motor pinion / reduction ratio
too high
Install smaller motor pinion
Car drive / bearing system
problem
Check or replace components
Model run too often without
cooling period
Allow speed control to cool off after each full run
Motor does not stop;
continues running slowly
Set-up / basic settings problem Repeat basic ESC set-up procedure
Speed control faulty Send ESC for repair
Radio interference Receiver or aerial too close to
power cables, motor, battery or
speed control; Receiver aerial too
short, or coiled up
See “Installation Tips” section
Receiver fault; Transmitter or
transmitter module fault; Servo
fault; Crystal fault, or crystal not
correct type
Replace components one by one to locate fault. Use
original manufacturer‘s crystals only
Connector contact problem Check connectors
Transmitter battery / cells flat Replace dry cells or recharge transmitter pack
Transmitter aerial too short Extend transmitter aerial fully
Imprecise, non-linear
control characteristics
Transmitter battery / cells
almost flat
Check transmitter battery regularly
Transmitter or transmitter “car
program” has been changed
Repeat basic ESC set-up procedure
WARNING
This is not a toy, it is a precision electronic speed controller. This product is
not intended for use by children without direct supervision of a responsible,
knowledgeable adult. Contents of box may differ from pictures. In line with our
policy of continuous product development, the exact specifications of the product
may vary without prior notice. Take appropriate safety precautions when using
this product; you are responsible for its safe and proper use. Please read the
instruction manual before using this product and follow all safety precautions.
First time users should seek advise from people who have used this product
already in order use this product correctly and safely.
Improper use may cause personal and/or property damage. XRAY and its
distributors have no control over damage resulting from shipping, improper
construction, or improper usage. XRAY assumes and accepts no responsibility for
personal and/or property damages resulting from the use of improper building
materials, equipment and operation. By purchasing any item produced by XRAY,
the buyer expressly warrants that he/she is in compliance with all applicable
federal, state and local laws and regulation regarding the purchase, ownership
and use of the item. The buyer expressly agrees to indemnify and hold harmless
XRAY for all claims resulting directly or indirectly from the purchase, ownership
or use of the product. By the the act of using this product, the user accepts
all resulting liability. If the buyer is not prepared to accept this liability, then
he/she should return this product in new and unused condition to the place of
purchase.
WARRANTY
XRAY guarantees this product to be free from defects in both material and
workmanship within 90 days of purchase. The total monetary value under warranty
will in no case exceed the cost of the original tool purchased. This warranty does
not cover any components damaged by use or modification or as a result of wear.
No part will be sent under warranty without proof of purchase. Should you find
any defect, contact the local distributor. Service and customer support will be
provided through local hobby store where you have purchased the product or by
the distributor, therefore make sure to purchase any XRAY products at your local
hobby store.
XRAY has no control over usage of this product once it leaves the dealer, therefore
XRAY can only offer warranty against all manufacturer‘s defects in materials,
workmanship, and assembly at point of sale and before use. No warranties are
expressed or implied that cover damage caused by what is considered normal use,
or cover or imply how the speed controller will last before requiring replacement.
This warranty does NOT cover suitability for specific operation, incorrect
installation, components worn by use, application of reverse or improper voltage,
shipping, tampering, misuse like any soldering inside the unit, replacing of wires,
connection to electrical components not mentioned in the instructions, mechanical
damage, immersion of water and cutting of the original wires, plugs, connectors
and switches.
XRAY does not pay nor refund shipping on any component sent to XRAY or its
distributors for warranty. XRAY reserves the right to make the final determination
of the warranty status of any component or part.
LIMITATIONS OF LIABILITY
XRAY makes no other warranties expressed or implied. XRAY shall not be liable
for any loss, injury or damages, whether direct, indirect, special, incidental, or
consequential, arising from the use, misuse, or abuse of this product and/or any
product or accessory required to use this product. In no case shall XRAY‘s liability
exced the monetary value of this product. All rights reserved.
If you have any questions, please do not hesitate to contact XRAY at
[e-mail] or visit our website at www.teamxray.com
for news and updates.
REPAIR PROCEDURES
• In case of problems first check the Troubleshooting Guide or contact the hobby shop
where you bought the product or contact your national XRAY distributor to obtain
information how to proceed with reclamation.
• For quick repair and return service, provide your full address and work and private
phone number and add a detailed description of the malfunction.
• Products sent in for repair that operate perfectly will be charged with a service fee.
Therefore first check with the Troubleshooting Guide.
• Package your product carefully and follow the instructions you will receive from the
national distributor.