Traxxas 3020 EVX-2 Marine ESC User Manual

888-traxxas, Brand a nimh, Electronic speed control instructions

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Thank you for purchasing the Traxxas EVX-2 Marine
electronic speed control. The EVX-2 Marine uses
MOSFET transistors and microprocessor circuitry
to deliver efficient, high-frequency operation.
The EVX-2 Marine 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 Marine comes with the peace-of-mind of the Traxxas Lifetime
Electronics Warranty and unmatched Traxxas customer support. The
EVX-2 Marine 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 Marine. If you have questions or
need assistance call us at 1-888-TRAXXAS.

Important Precautions
Your EVX-2 Marine 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 Marine General Precautions
No Brakes: The EVX-2 Marine is not equipped with brakes and should

not be used in land-based vehicles.

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 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.

Always Use Heat Sinks: A water-cooled heat sink is factory-installed

on the speed control and must be used for maximum cooling and
performance. A steady stream of water should always be visible from
the water outlet while the boat is running at speed.

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.

6 to 14-cells Only: Always adhere to the

minimum and maximum limitations of the EVX-2
Marine 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 Marine is not wired exactly as shown in the
diagram below, it can be damaged! Note that the
left (port) motor on the Villain EX is designed to
run in reverse. Your application may require both
motors to run in the same direction. Please note
that modified speed controls can be subject to a
rewiring fee when returned for service. If you have
questions or need assistance call us at 1-888-TRAXXAS.

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 Marine Advanced Precautions
Motor Limit: EVX-2 Marine has a 12-turn 550 modified motor limit

when the motor is properly geared. A water cooling kit (Traxxas part
#1580) is required for modified motor use in marine applications such
as the Villain EX. 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.

Electronic Speed Control Instructions

Covers Part #3020

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) ............................................................. 4.0 oz / 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
Continuous Current (@100°F amb.) .................................................................... 30 Amps
BEC Voltage .............................................................................................................6.0 volts DC
BEC Current ...................................................................................................................2.5 amps

Power Wire .......................................................................................................... 14 Gauge / 9”
Switch Harness ................................................................................................... 26 Gauge / 4”
Input Harness Wire ........................................................................................... 26 Gauge / 9”
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, 25% Reverse
Profile #2 (Race Mode): 100% Forward, No Reverse
Profile #3 (Training Mode): 50% Forward, 25% Reverse

www.TRAXXAS.com

Traxxas, 1100 Klein Road, Plano, TX 75074, Phone: 972-265-8000, Fax: 972-265-8011, e-mail: [email protected]

Form 3020INST Rev 080211 KC1062

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 boat on a stand to avoid
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 Marine’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 Marine 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 Marine to Traxxas for service.

EVX-2 Marine will not go into programming mode:
• Make sure the EVX-2 Marine 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 Marine 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 Marine 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 Marine.

• Motor is improperly geared: use a milder motor or a smaller pinion gear.
• Check the drive train for binding or restrictions.

EVX-2 Marine overheats and shuts down:
• Overloading the motor.
• Insufficient water-cooling for the heat sink: check the water pickup and

water cooling lines for debris, and flush out debris. It may be necessary to
relocate the water pickup for better water flow.

• Motor may exceed maximum specification. The EVX-2 Marine is

limited to motors with no fewer than 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 (weeds or fishing line in the drivetrain

or propellers).

EVX-2 Marine 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 Marine, 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 Marine.

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 Marine 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 EVX2M INST Sheet.indd 1

2/11/08 11:45:09 AM

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