Traxxas Vxl-3s User manual

Thank you for purchasing the Traxxas VXL-3s™

electronic speed control. The Velineon™ VXL-3s

forward/reverse electronic speed control simplifies

brushless technology with easy, built-in profiles

and intuitive programming. Tri-mode operation

auto detects the motor type for brushed, sensored

or sensorless brushless motors. The VXL-3s uses

advanced circuit design that allows sensorless brushless motors to operate

with the smoothness and precision of the best brushed systems. The VXL-3s

comes with the peace-of-mind of the Traxxas Lifetime Electronics Warranty

and unmatched Traxxas customer support. The VXL-3s is not a toy. It is

a sophisticated electronic device capable of delivering large amounts of

current. Children under 8 years of age require adult supervision for use of the

VXL-3s. If you have questions or need assistance call us at 1-888-TRAXXAS.

Important Precautions

VXL-3s Speed Control

• Water and Electronics Do Not Mix: Do not operate the model in or

around water. Never allow water, moisture, or other foreign materials to

get inside the speed control.

• Disconnect the Batteries: Always disconnect the battery pack from the

speed control when not in use.

• Transmitter on First: Switch on your transmitter first before switching on

the speed control to prevent runaways and erratic performance.

• Don’t Get Burned: The heat sink can get extremely hot, so be careful not

to touch it until it is cool. Supply adequate airflow for cooling.

• Use Stock Connectors: If you decide to change the battery or motor

connectors, only change one battery or motor connector at a time. This

will prevent damage from accidentally mis-wiring the speed control.

Please note that modified speed controls can be subject to a rewiring fee

when returned for service. Removing the battery connector on the speed

control or using the same-gender connectors on the speed control will

void the product’s warranty.

• Insulate the Wires: Always insulate exposed or damaged wiring with heat

shrink tubing to prevent short circuits

Batteries and Battery Charging

The Velineon Power System

uses rechargeable batteries that must be

handled with care for safety and long battery life. Make sure to read and

follow all instructions and precautions that were provided with your battery

packs and your charger. It is your responsibility to charge and care for your

battery backs properly. In addition to your battery and charger instructions,

here are some more tips to keep in mind.

• Never leave batteries to charge unattended.

• Remove the batteries from the model while charging.

• Allow the battery packs to cool off between runs (before charging).

• Always unplug the battery from the electronic speed control when the

model is not in use and when it is being stored or transported.

• Do not use battery packs that have been damaged in any way.

• Do not use battery packs that have damaged wiring, exposed wiring, or a

damaged connector.

• Children should have responsible adult supervision when charging and

handling batteries.

LiPo Batteries

Lithium Polymer (LiPo) batteries are becoming popular for use in R/C

models due to their compact size, high energy density, and high-current

output. However, these types of batteries require special care and handling

procedures for long life and safe operation. Warning: LiPo batteries are

intended only for advanced users that are educated on the risks associated

with LiPo battery use. Traxxas does not recommend that anyone under

the age of 16 use or handle LiPo battery packs without the supervision of

a knowledgeable and responsible adult.

The VXL-3s electronic speed control is able to use LiPo batteries with

nominal voltage not to exceed 11.1 volts (3S packs) volts. LiPo batteries

have a minimum safe discharge voltage threshold that should not be

exceeded. The Velineon VXL-3s electronic speed control is equipped with

built-in Low-Voltage Detection that alerts the driver when LiPo batteries

have reached their minimum voltage (discharge) threshold. It is the driver’s

responsibility to stop immediately to prevent the battery pack from

being discharged below its safe minimum threshold.

Low-Voltage Detection on the speed control is just one part of a

comprehensive plan for safe LiPo battery use. It is critical for you, the user,

to follow all other instructions supplied by the battery manufacturer

and the charger manufacturer for proper charging, use, and storage of

LiPo batteries. Make sure you understand how to use your LiPo batteries.

Be aware that Traxxas shall not be liable for any special, indirect, incidental,

or consequential damages arising out of the installation and/or use of LiPo

batteries in Traxxas products.

If you have questions about LiPo battery usage, please consult with your

local hobby dealer or contact the battery manufacturer.

Installation

The VXL-3s provides two options for installation in many Traxxas models.

The most secure option is to use the mounting plate sold separately as part

#3725. It attaches to the chassis in the original speed control location.

For installations without part #3725, the VXL-3s can

be installed in the chassis with double-sided servo

tape (see illustration, Traxxas Rustler shown). The

screw bosses will need to be cut from the case with

a pair of side cutters to allow the VXL-3s to fit in the

chassis side pod. The screw bosses may need to be

removed for installation in non-Traxxas models as

well. When mounting the speed control with double-

sided servo tape, clean both application surfaces

thoroughly with alcohol. The surfaces must be

perfectly clean for maximum adhesion.

Here are some tips for choosing a location for the speed control:

• The VXL-3s does not use a conventional on/off switch. Pressing the

EZ-Set button on the speed control turns it on and off. It is not necessary

to install an on/off switch into the wiring harness.

• If you are planning to operate the speed control at

the higher limits of its capabilities, cut ventilation

holes into the body for the heat sinks. Monitoring

temperatures will extend the lives of the batteries and

motors and proper ventilation and cooling will prevent premature thermal

shutdown. The VXL-3s is equipped with an additional connector to supply

power to an optional heat sink cooling fan. An optional heat sink cooling

fan can assist in cooling the VXL-3s in high current motor applications.

• Mount the speed control where it will be protected from crash damage.

Also protect the speed control from dirt and debris kicked up by the tires.

VXL-3s Electronic Speed Control Instructions

Covers Part #3355

Specifications:

Input voltage ...................................................... 4.8 - 11.1V (4 - 9 cells NiMH or 2S - 3S LiPo)

Supported motors ............................................. Brushed / Brushless / Sensorless brushless

Motor limit .........................................................................................................................................None

Continuous current ........................................................................................................................200A

Peak current .............................................................................................................................. 320A

BEC voltage ..................................................................................................................................6.0V DC

Transistor type .......................................................................................................................... MOSFET

On-resistance .................................................................................0.00075 Ω Max (0.006/8 FETs)

PWM frequency .......................................................................................................................12,000Hz

Battery connector ..................................................................Traxxas High-Current Connector

Motor connectors ........................................................................TRX 3.5mm bullet connectors

Motor/battery wiring ...............................................................................12-gauge Maxx® Cable

Thermal protection ...........................................................................2-stage thermal shutdown

Case size (l/w/h) ..................................................55mm (2.19”)/ 39mm (1.54”)/ 33mm (1.3”)

Weight .................................................................................................................................. 90g (3.17oz)

Profile Selection:

Prole #1 (Sport Mode): 100% Forward, 100% Brakes, 100% Reverse

Prole #2 (Race Mode): 100% Forward, 100% Brakes, No Reverse

Prole #3 (Training Mode): 50% Forward, 100% Brakes, 50% Reverse

www.TRAXXAS.com

Traxxas, 1100 Klein Road, Plano, TX 75074,

Phone: 972-265-8000, Fax: 972-265-8011, e-mail: [email protected]

Form 3355INST Rev 070706 KC1097

Troubleshooting Guide

This guide describes possible speed control problems, causes, and simple

solutions. Check these items before contacting Traxxas.

Steering channel works but the motor will not run:

• The speed control has thermally shut down. Allow the speed control to cool

down. Use a milder motor or a smaller pinion gear. Check

the drive train for restrictions. Check the motor connections. Check the motor.

• Make sure the speed control is plugged into the throttle channel of the receiver.

Check operation of the throttle channel with a servo.

• Bad battery or motor. Check the operation with known good battery and motor.

• VXL-3s: Possible internal damage. Return the VXL-3s to Traxxas for service.

Steering servo does not work:

• Check the wires, radio system, crystals, battery and motor connectors, and the

battery pack.

• Possible internal damage. Test the servo on channel 2 of the receiver or in

another model. Return the servo to Traxxas for service.

Motor runs backwards:

• Motor wired backwards - Check the wiring and correct.

Motor runs as soon as the battery is plugged in:

• Internal damage, return VXL-3s to Traxxas for service.

VXL-3s will not go into programming mode:

• Make sure the VXL-3s is plugged into Channel 2 (the throttle channel) on

the receiver. If it is plugged into the battery terminal, it will not go into

programming mode.

• Be sure the VXL-3s is turned off before trying to program or select a profile.

• Unplug battery, reconnect, and repeat programming instructions.

• Check if transmitter is turned on.

Receiver glitches/throttle stutters during acceleration:

• The receiver or antenna is too close to power wires or the batteries.

• Bad connections - Check the wiring and connectors.

• Motor worn - Replace the motor.

• Excessive current to motor (over-geared motor) - Use a smaller pinion gear.

• Battery voltage low. Recharge and/or verify charged status.

• Disconnected brushless motor lead. Reconnect according to appropriate

wiring diagram.

Model runs slowly / slow acceleration:

• Check the motor and battery connectors.

• Check to see if VXL-3s is in Profile #3 (50% throttle)

• Bad battery or motor. Check the operation with known good battery and motor.

• Incorrect transmitter or speed control adjustment. Refer to the “Transmitter

Setup” and “VXL-3s Setup Programming” sections.

• VXL-3s is in Thermal Shutdown Protection. Allow to cool and check for

proper gearing.

• VXL-3s has entered Low-Voltage Protection.

Model will not go in reverse:

• Make sure the throttle trim is in the correct position (LED on VXL-3s should be lit

solid at neutral throttle)

• Check for correct VXL-3s profile (Profile #2 does not have reverse).

• If brushed motor is being used, verify proper connection to VXL-3s. Correct

if necessary.

VXL-3s Warranty Information

Traxxas warrants your Traxxas electronic component to be free from

defects in materials or workmanship for a period of thirty (30) days

from the date of purchase. Before returning any product for warranty

service, please contact our service department (1-888-TRAXXAS)* to

discuss the problem you are having with the product. After contacting

Traxxas, send the defective unit along with your proof of purchase

indicating the date purchased, your return address, e-mail, a daytime

phone number, and a brief description of the problem to:

Traxxas

1100 Klein Road

Plano, TX 75074

If the component is found to be defective, it will be repaired or

replaced at no charge. The warranty does not cover damage caused

by the following:

• Allowing water, moisture, or other foreign material to enter speed

control or get onto PC board.

• Using other than 4 to 9-cells NiMH or 2S to 3S LiPo (4.8-11 volts)

input voltage.

• Removing the stock battery connectors.

• Using the same gender connectors on the speed control’s motor and

battery connections.

• Cross-connection of the battery/motor(s).

• Reverse voltage application.

• Incorrect installation or wiring.

• Components worn by use.

• Short-circuiting the heat sinks.

• Use without the heat sinks.

• Splices to the input wire harness.

• Disassembling the case.

• Excessive force when using the EZ-Set button.

• Tampering with the internal electronics.

• Incorrect wiring of an FET servo.

• Allowing exposed wiring to short-circuit.

• Any damage caused by crash, flooding, or act of God.

In no case shall our liability exceed the product’s original cost.

We reserve the right to modify warranty provisions without notice. All

warranty claims will be handled by Traxxas. Because Traxxas has no

control over the use and future installations of the VXL-3s, no liability

may be assumed nor will be accepted for damage resulting from the

use of this product. Every ESC is thoroughly tested and cycled before

leaving the Traxxas facility and is, therefore, considered operational.

By the act of operating/connecting speed control, the user accepts

all resulting liability. Traxxas makes no other warranties expressed or

implied. This warranty gives you specific legal rights which vary from

state to state. After the expiration of the standard 30-day warranty,

use the Traxxas Lifetime Electronics Warranty to cover service and

repairs. Documents and forms are provided with your VXL-3s.

If you have questions or need technical assistance, call Traxxas at

1-888-TRAXXAS

(1-888-872-9927) (U.S. residents only)

*U.S. Customers Only

www.TRAXXAS.com

Traxxas, 1100 Klein Road, Plano, TX 75074,

Phone: 972-265-8000, Fax: 972-265-8011, e-mail: [email protected]

*U.S. Customers Only

Traxxas High Current Connector

Your VXL-3s is equipped with the Traxxas High-Current Connector. Standard

connectors restrict current flow and are not capable of delivering the power

needed to maximize the output of the VXL-3s. The Traxxas connector’s gold-

plated terminals with a large contact surfaces ensure positive current flow with

the least amount of resistance. Secure, long-lasting, and easy to grip, the Traxxas

connector is engineered to extract all the power your battery has to give.

To run this system, your batteries must be equipped with Traxxas High-Current

Connectors. Batteries can either be purchased new with Traxxas connectors

installed or Traxxas connectors can be purchased to install on battery packs you

already own. For best performance, your system requires NiMH battery packs that

have cells rated for high discharge and use high-quality, low-resistance assembly

techniques. Cheaply made battery packs do not retain their performance

characteristics after repeated uses in high-powered electric applications. They will

lose their punch and run time and may require frequent replacement. In addition,

poor-quality, high-resistance cell connectors could fail, requiring disassembly and

repair. The main goal is to reduce all sources of high resistance in the pack. This

includes the connector, the wire, and the bars attaching the cells together. High

pack resistance will create additional heat and rob you of the full power the cells

are capable of producing.

• Mount the speed control where you will have easy access to the plugs

and the on/off (EZ-Set) button without having to remove the body.

• Mount the speed control so that none of the power components (wiring,

motor, ESC) contacts any part of the radio system, particularly the

antenna wire. The receiver should be mounted so the antenna wire can

be extended as far away from the speed control as possible. The antenna

wire should be extended vertically in the mast and not wrapped on the

chassis under the body. Excess antenna wire should not be coiled on

the chassis. Servo cables and the antenna wire should not cross or come

in contact with any of the motor or battery wires. These steps will help

reduce the possibility of radio interference.

• Graphite or metal chassis have been known to transmit radio noise

generated by the motor. If the receiver is to be mounted on the chassis,

position it so the crystal and antenna are as far away from the chassis as

possible. This may require you to mount the receiver on its side. This will

reduce the chance of picking up radio interference from the motor.

VXL-3s Wiring

The VXL-3s electronic speed control is capable of controlling brushed,

brushless, and sensored brushless motors. The VXL-3s auto-detects the

motor type and has numerous built-in safeguards to prevent damage from

miswiring or damaged wiring.

Sensorless brushless motors

Sensorless motors are the easiest and most reliable brushless motor type.

The VXL-3s is optimized to deliver the smoothest possible sensorless motor

performance. The Velineon 3500 is a sensorless brushless motor. The wiring

(phase alignment) of the motor determines its direction of rotation. Refer to

the wiring diagram below.

Sensored brushless motors

The VXL-3s is fully compatible with sensored brushless motors. Sensor

motors use an additional sensor installed in the motor to communicate

rotor position to the speed control. The VXL-3s features a covered auxiliary

port that accepts aftermarket motor sensors on the front face of the unit.

The VXL-3s has built-in Sensor Motor Backup Protection to prevent damage

if the sensor leads or phase leads become disconnected. If a sensor lead

becomes damaged or is disconnected, the VXL-3s automatically switches to

sensorless brushless operation.

The VXL-3s also features Sensor Phase Detection. When a sensored

brushless motor is connected, the VXL-3s will check for proper wiring. If

the motor phase wiring is incorrect, the VXL-3s will not apply power to the

motor until it is wired correctly.

Brushed motors

For the ultimate in versatility, the VXL-3s has no motor limit when used

with a brushed motor. This allows you to use any readily available 540 or

550 size brushed motors in your VXL-3s equipped vehicle. Always be sure

to follow all break in and maintenance instructions set forth by the motor

manufacturer. The VXL-3s automatically detects what kind of motor it is

connected to so no programming actions are required to use brushed

motors. Simply be sure to properly connect the motor to the speed control

as shown.

• Motor positive (+) should be connected to phase A (blue).

• Phase B is not used.

• Motor negative (-) should be connected to phase C (white).

If the wiring is reversed, the motor will operate in reverse. If the motor is

wired incorrectly (using phases A+B or B+C), the VXL-3s will send short

pulses to the motor and turn off the LED indicating a fail safe mode. It will

not return to normal operation until wired properly.

Transmitter Setup

Traxxas TQ Radio Systems

Before attempting to program your VXL-3s, it is important to make sure

your TQ transmitter is properly adjusted (set back to the factory defaults).

Otherwise, you may not get the best performance from your speed control.

The transmitter should be adjusted as follows:

1. Set the throttle neutral switch to the 50/50 setting. This adjusts the

transmitter’s throttle trigger throw to 50% for throttle and 50% for

braking and reverse. Experienced users may wish to use the 70/30

setting if more broad proportional control is desired in forward than with

braking and reverse. This might be desirable in a racing environment

where reverse is disabled.

2. Set the throttle trim control to the middle “0” setting.

3. Set the Channel 2 servo reversing switch to the left position. Do

not change the position of any of the servo reversing switches after

programming the VXL-3s.

4. You are now ready to program your speed control.

Aftermarket (Non-Traxxas) Transmitters

The following instructions are provided as a general reference only for

those who are using non-Traxxas transmitters. Consult your transmitter’s

instructions for information on how to change the settings.

1. Set the High ATV (adjustable travel volume) or EPA (end point

adjustment) to the maximum setting. This is the amount of servo throw

at full throttle.

2. Set the Low ATV, EPA or ATL (low side only trim adjustment) to the

maximum setting. This is the amount of servo throw at full brakes

or reverse.

3. Set the throttle trim to the middle (neutral setting).

4. Set the throttle channel reversing switch to either position. Do not

change the switch position after programming.

5. Set the trigger throw adjustment to 50% throttle and 50% brake (either

mechanical or electronic).

6. Set the exponential setting (if equipped) to the zero or fully linear setting.

Aftermarket Receivers

The VXL-3s is compatible with most aftermarket

receivers. By removing the tab on the edge of the power

connector, the VXL-3s can be plugged directly into some

models of Futaba®, Airtronics®, Hitec®, and JR® receivers.

Please refer to the manufacturer’s wiring diagrams that

came with your receiver. On the VXL-3s, the red wire is positive, the black

wire is negative, and the white wire is the control wire. Warning: On some

older Airtronics® radio systems, the positive and negative terminals are

opposite of the VXL-3s and an adapter is required. Crossing the red (+)

and black (-) wires could damage the receiver and the VXL-3s. Study the

manufacturer’s wiring diagrams closely, or consult your hobby dealer.

Low-Voltage Detection Setting

The Velineon VXL-3s electronic speed control is equipped with built-in Low-

Voltage Detection. The Low Voltage Detection circuitry constantly monitors

the battery voltage. When the battery voltage begins to reach the minimum

recommended discharge voltage threshold for LiPo battery packs, the VXL-

3s will limit the power output to 50% throttle. When the battery voltage

attempts to fall below the minimum threshold, the VXL-3s will shut down all

motor output. The LED on the speed control will slowly blink red, indicating a

low voltage shutdown. The VXL-3s will stay in this mode until a fully charged

battery is connected. The electronic speed control is factory set with Low-

Voltage Detection turned on. Low-Voltage Detection can be turned off for a

slight increase in run-time when using NiMH batteries. Traxxas recommends

leaving Low Voltage Detection on at all times. When Low Voltage Detection

interrupts driving, NiMH batteries will already be at the end of their useful

charge and voltage will be decreasing rapidly. Never use LiPo batteries while

Low-Voltage Detection is turned off.

Verify that Low-Voltage Detection is turned on:

1. Turn on the transmitter (with the throttle at neutral).

2. Connect a fully charged battery pack to the VXL-3s.

Press and release the EZ-Set button to turn the VXL-3s on. If the LED is solid

green, then Low-Voltage Detection is ON). If the LED is solid red, then the

Low-Voltage Detection is OFF (not safe to use LiPo batteries).

To turn Low-Voltage Detection off (NiMH setting):

Make sure the LED on the VXL-3s is on and green.

Press and hold the EZ-Set button for ten seconds. The

LED will turn off and then light red. Also, a “falling”

musical tone will be emitted from the motor.

3. Low-Voltage Detection is now OFF.

To turn Low-Voltage Detection on (LiPo setting):

1. Make sure the LED on the VXL-3s is on and red.

2. Press and hold the EZ-Set button for ten seconds. The LED

will turn off and then light green. Also, a “rising” musical

tone will be emitted from the motor.

3. Low-Voltage Detection is now ON.

VXL-3s Setup Programming

(Calibrating your ESC and transmitter)

Read through all of the programming steps before you begin. If you get

lost during programming or receive unexpected results, simply unplug the

battery, wait a few seconds, plug the battery back in, and start over.

1. Connect a fully charged battery pack to the VXL-3s.

2. Turn on the transmitter (with the throttle at neutral).

3. Press and hold the EZ-Set button (A). The LED

will rst turn green and then red. Release the

EZ-Set button.

4. When the LED blinks RED ONCE. Pull the throttle

trigger to the full throttle position and hold it

there (B).

5. When the LED blinks RED TWICE. Push the throttle

trigger to the full reverse and hold it there (C).

6. When the LED blinks GREEN ONCE, programming

is complete. The LED will then shine green or

red (depending on low-voltage detection setting)

indicating the VXL-3s is on and at neutral (D).

VXL-3s Operation

To operate the speed control and test programming, place the vehicle on

a stable block or stand so that all of the driven wheels are off the ground.

Disconnect motor wires “A” and “C”, this will assure the motor does

not drive the wheels during testing. Do not test programming without

disconnecting the motor wires.

Note that in steps 1-7 below, Low Voltage

Detection is turn ON (factory default) and the LED shines green. If Low Voltage

Detection is OFF, the LED will shine red instead of green in steps 1-7 below.

1. With the transmitter on, press and release the EZ-Set button. The LED will

shine green. This turns the VXL-3s on.

2. Apply forward throttle. The LED will turn off until full throttle power is

reached. At full throttle, the LED will illuminate green.

3. Move the trigger forward to apply the brakes. Note that braking control is

fully proportional. The LED will turn off until full braking power is reached.

At full brakes, the LED will illuminate green.

4. Return the throttle trigger to neutral. The LED will shine green.

5. Move the throttle trigger forward again to engage reverse (Prole #1). The LED

will turn off. Once full reverse power is reached, the LED will illuminate green.

6. Return the throttle trigger to neutral. (Note: There is programmed delay when

changing from reverse to forward. This prevents damage to the transmission

on high-traction surfaces.)

7. To turn the VXL-3s off, press the EZ-Set button until the LED turns

off (.5 seconds).

VXL-3s Profile Selection

The speed control is factory set to Profile #1 (100% forward, brakes, and

reverse). To disable reverse (Profile #2) or to allow 50% forward and 50%

reverse (Profile #3), follow the steps below. The speed control should be

connected to the receiver and battery, and the transmitter should be

adjusted as described previously. The profiles are selected by entering the

programming mode.

Prole Description

Prole #1 (Sport Mode): 100% Forward, 100% Brakes, 100% Reverse

Prole #2 (Race Mode): 100% Forward, 100% Brakes, No Reverse

Prole #3 (Training Mode*): 50% Forward, 100% Brakes, 50% Reverse

Selecting Sport Mode (Prole #1: 100% Forward, 100% Brakes, 100% Reverse)

1. Connect a fully charged battery pack to the

VXL-3s and turn on your transmitter.

2. With the VXL-3s off, press and hold the

EZ-Set button until the LED turns solid green,

then solid red and then begins blinking red

(indicating the Prole numbers).

3. When the LED blinks red once, release the

EZ-Set button.

4. The LED will blink and then turn solid green

(Low-Voltage Detection ON) or red (Low-

Voltage Detection OFF). The model is ready to drive.

Selecting Race Mode (Prole #2: 100% Forward, 100% Brakes, No Reverse)

1. Connect a fully charged battery pack to

the VXL-3s and turn on your transmitter.

2. With the VXL-3s off, press and hold the

EZ-Set button until the LED turns solid green,

then solid red and then begins blinking red

(indicating the Prole numbers).

3. When the LED blinks red twice, release the

EZ-Set button.

4. The LED will blink and then turn solid green

(Low-Voltage Detection ON) or red (Low-

Voltage Detection OFF). The model is ready to drive.

Selecting Training Mode (Prole #3: 50% Forward, 100% Brakes, 50% Reverse)

1. Connect a fully charged battery pack to the

VXL-3s and turn on your transmitter.

2. With the VXL-3s off, press and hold the

EZ-Set button until the LED turns solid green,

then solid red and then begins blinking red

(indicating the Prole numbers).

3. When the LED blinks red three times, release

the EZ-Set button.

4. The LED will blink and then turn solid green

(Low-Voltage Detection ON) or red (Low-

Voltage Detection OFF). The model is ready to drive.

Note: If you missed the mode you wanted, keep the EZ-Set button pressed

down and the blink cycle will repeat until the button is released and a Mode

is selected.

LED Codes and Protection Modes

• Solid Green: VXL-3s power on light. Low-Voltage Detection is ON

(LiPo setting).

• Solid Red: VXL-3s power on light. Low-Voltage Detection is OFF

(NiCad/NiMH setting).

• Fast Blinking Red: Thermal Shutdown Protection Stage 1. If the motor

has lower than normal power and the VXL-3s is hot, the VXL-3s has

entered Stage 1 Thermal Shutdown Protection to guard against

overheating caused by excessive current flow. If the motor has no

power and the VXL-3s is very hot, the VXL-3s has entered Stage 2

Thermal Shutdown Protection and has automatically shut down. Let

the VXL-3s cool. Make sure your model is properly geared for the

conditions.

• Slow Blinking Red (with Low-Voltage Detection on): The VXL-3s has

entered Low-Voltage Protection. When the battery voltage begins

to reach the minimum recommended discharge voltage threshold

for LiPo battery packs, the VXL-3s will limit the power output to

50% throttle. When the battery voltage attempts to fall below the

minimum threshold, the VXL-3s will shut down all motor output.

The LED on the speed control will slowly blink red, indicating a low

voltage shutdown. The VXL-3s will stay in this mode until a fully

charged battery is connected.

• Alternating; Blinks Red then Green: If the motor has no power,

the VXL-3s has entered Over Voltage Protection. If a battery with

too high voltage is used, the VXL-3s will go into a failsafe mode.

Warning: If input voltage exceeds approximately 20-volts, the ESC

may be damaged. Do not exceed 12.6 maximum peak input voltage.

• Blinking Green: The VXL-3s is indicating the transmitter Throttle Trim

is incorrectly set. Adjust the Throttle Trim to the middle “0” setting.

*patent pending

Green then Red

Once Red

Twice Red

Once Green

One blink Red

Green to Red to Off

Solid Green

Release

Two blinks Red

Green to Red to Off

Solid Green

Release

Three blinks Red

Green to Red to Off

Solid Green

Release