Thank you for purchasing the Traxxas EVX-2
electronic speed control. The EVX-2 uses MOSFET
transistors and microprocessor circuitry to
deliver efficient, high-frequency operation. The
EVX-2 delivers smooth, precise, full-proportional
control over your speed in forward and reverse.
EZ-Set
®
push-button setup, multi-color LED, and
three easy-to-program drive profiles provide convenient, customized
operation. The EVX-2 comes with the peace-of-mind of the Traxxas
Lifetime Electronics Warranty and unmatched Traxxas customer support.
The EVX-2 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 EVX-2. If you have questions or
need assistance call us at 1-888-TRAXXAS.
Important Precautions
Your EVX-2 is an extremely powerful electronic device capable of
delivering high current. Please closely follow these precautions to
prevent damage to the speed control or other components.
EVX-2 General Precautions
•
Disconnect the Batteries
: Always disconnect the battery packs
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 transistor tabs and the heat sinks can get
extremely hot, so be careful not to touch them until they cool.
Supply adequate airflow for cooling.
•
Always Use Heat Sinks
: Three heat sinks are factory-installed on
the speed control and must be used for maximum cooling and
performance.
•
6 to 14-cells Only
: Always adhere to the minimum and maximum
limitations of the EVX-2 as stated in the specifications table.
Do not mix battery types (NiMH or NiCad), brands or capacities.
Use the same voltage and capacity for both
batteries. Using mismatched battery packs
could damage the batteries and electronic
speed control.
•
Connectors
: If you decide to change the
battery or motor connectors, only change
one battery or motor connector at a time.
This will prevent accidentally mis-wiring the
speed control. If the EVX-2 is not wired exactly
as shown in the diagram below, it can be
damaged! Please note that modified speed
controls can be subject to a rewiring fee when
returned for service.
•
No Reverse Voltage
: The speed control is not
protected against reverse polarity voltage. When
changing the battery and/or motor, be sure
to install the same type of connectors to avoid
reverse polarity damage to the speed control.
Removing the battery connectors on the speed control or using
the same-gender connectors on the speed control will void the
product’s warranty.
•
Do Not Let the Transistor Tabs Touch
: Never allow the three
separate transistor banks to touch each other or any exposed
metal. This will create a short circuit and damage the speed control.
(For example, laying a metal tool across the heat sinks can damage
the speed control.)
EVX-2 Advanced Precautions
•
Motor Limit
: EVX-2 has a 12-turn 550 modified motor limit when
the motor is properly geared. If the motor or speed control is
overheating, try a smaller pinion gear. Do not attempt to use a more
powerful motor (fewer turns) than the above mentioned motor
limits or you could experience frequent thermal shutdown.
•
Insulate the Wires
: Always insulate exposed wiring with heat shrink
tubing to prevent short circuits.
•
Use Neutrally Timed Motors
: For reverse use, the motors must have
0° timing. Modified motors (with adjustable end bells) timed to 0°
or Johnson/ Mabuchi (closed end bell) motors are recommended.
Using motors with other than 0° timing will draw excess current
in reverse, and can result in the speed control overheating and
premature motor wear.
•
Motor Capacitors Required
: Ceramic capacitors should be properly
installed on every motor to prevent radio interference. These are
already installed on the factory Titan motor.
•
No Schottky Diodes
: External schottky diodes are not compatible
with reversing speed controls. Using a schottky diode with the
EVX-2 will damage the ESC and void the 30-day warranty.
• Note:
This speed control is not intended for marine use.
Electronic Speed Control Instructions
Covers Part #3019
Specifications:
Input Voltage ............................................................ 6 to 14-cells (7.2 to 16.8 volts DC)
Case Size ........................................................................................2.27”W x 2.00”D x 1.05”H
Weight (heat sinks/no heat sinks) ...............................................................4.1oz / 3.6 oz
Motor Limit (550 Size)
*
.................................................................................................12-turns
On-Resistance–Forward (@Trans)..................................................................0.004 Ohms
On-Resistance–Reverse (@Trans) ...................................................................0.004 Ohms
Rated Current - Forward ........................................................................................ 180 amps
Rated Current - Reverse ......................................................................................... 180 amps
Braking Current.......................................................................................................... 360 amps
Continuous Current (@100°F amb.) .................................................................... 30 Amps
BEC Voltage .............................................................................................................6.0 volts DC
BEC Current ...................................................................................................................2.5 amps
Power Wire .......................................................................................................... 14 Gauge / 3”
Input Harness Wire ........................................................................................26 Gauge / 9.5”
Transistor Type .............................................................................................................. MOSFET
PWM Frequency ......................................................................................................1700 Hertz
Protection ..................................................................................................Thermal Shutdown
Single Button Setup ...............................................................................................................Yes
* Must be properly geared.
Profile Selection:
Profile #1 (Sport Mode): 100% Forward, 100% Brakes, 100% Reverse
Profile #2 (Race Mode): 100% Forward, 100% Brakes, No Reverse
Profile #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 3019INST Rev 080211 KC1061
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(s) will not run:
• The motor(s) could be bad or have a damaged brush. Check the
motor(s) and motor connections by supplying power directly to
the motor(s).
Note
: Disconnect the motor(s) from the ESC before
testing. Remove the pinion gear from the motor(s) or elevate the
driving wheels to avoid a runaway and damage to the vehicle.
• The speed control has thermally shut down (look for a solid
green LED). Allow the speed control to cool down. See the
overheating section.
• Make sure the EVX-2’s power cable is plugged into the throttle
channel of the receiver (Channel 2). Check the operation of the
radio system’s throttle channel with a servo.
• Possible internal damage. Return the EVX-2 to Traxxas for service.
Motor and steering servo do not work:
• Check the wires, radio system, crystals, battery and motor
connectors, and the battery packs.
• Possible internal damage. Return the EVX-2 to Traxxas for service.
EVX-2 will not go into programming mode:
• Make sure the EVX-2 is plugged into Channel 2 (the throttle
channel) on the receiver. If it is plugged into Channel 3 or the
battery terminal, it will not go into programming mode.
• Be sure the EVX-2 is turned off before trying to program or select a profile.
• Unplug battery, reconnect, and repeat programming instructions.
Motor(s) run backwards:
• Motor(s) wired backwards: check the wiring and correct.
• Backwards motor timing: reverse the motor end bells.
Receiver glitches/throttle stutters during acceleration:
• Motor capacitors broken or missing: check and replace
the capacitors.
• The receiver or antenna is too close to power wires or batteries.
• Bad connections: check the wiring and connectors.
• Motor worn: replace the motor.
• Excessive current to the motor: use a milder motor or a smaller
pinion gear.
Model runs slowly / slow acceleration:
• Check the motor and battery connectors.
• Check to see if EVX-2 is in Profile #3 (50% throttle)
• Bad battery or motor: check the operation with known
good batteries (freshly charged) and motor.
• Incorrect transmitter or speed control adjustment. Reprogram
the EVX-2.
• Motor is improperly geared: use a milder motor or a smaller
pinion gear.
• Check the drive train for binding or restrictions.
EVX-2 overheats and shuts down:
• Overloading the motor (running through tall grass, binding
in the drivetrain).
• Insufficient ventilation for the heat sinks. Cut ventilation holes
in the body or relocate the EVX-2.
• Motor may exceed maximum specification. The EVX-2 is limited to
motors with no fewer than 19-turns (550 size) with molex connectors
and 12-turns (550 size) with Traxxas High-Current Connectors.
• Motor is improperly geared. Use a milder motor or a smaller
pinion gear.
• Check the drivetrain for restrictions.
EVX-2 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:
• Using other than 6 to14-cells (7.2 to 16.8 volts DC)
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.
• Using motor(s) with fewer than 12-turns (550 size).
• Incorrect installation or wiring.
• Components worn by use.
• Short-circuiting the heat sinks.
• Use without the heat sinks.
• Removing the capacitors from the stock motor.
• Not installing capacitors on new motors (recommended:
three 0.1µF [50V]).
• Splices to the input wire harness.
• Disassembling the case.
• Tampering with moisture seals.
• 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 EVX-2, 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 EVX-2.
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
EVX-2 Wiring Diagram
1500
3600
3800
Brand A NiMH
3800
Brand A NiMH
1500
3600
3800
Brand A NiMH
3800
Brand A NiMH
Do not mix battery
capacities. Use two
batteries with the
same capacity.
Use batteries that are
exactly the same cell
type, brand, voltage
and capacity.
080211 EVX-2 INST Sheet.indd 1
2/11/08 11:36:31 AM
