Terminology – Traxxas 3351 Velineon 3500 User Manual

Page 8

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8 • VELINEON POWER SYSTEM

Please take a moment to familiarize yourself with these
terms. They will be used throughout this manual.

Brushless Motor - A D/C brushless motor replaces the

brushed motor’s traditional commutator and brush
arrangement with intelligent electronics that energize
the electromagnetic windings in sequence to provide
rotation. Opposite of a brushed motor, the brushless
motor has its windings (coils) on the perimeter of
the motor can and the magnets are mounted to the
spinning rotor shaft.

Cogging - Cogging is a condition sometimes associated

with brushless motors. Typically it is a slight stutter
noticed when accelerating from a stop. It happens for
a very short period as the signals from the electronic
speed control and the motor synch with each other.
The VXL-3s electronic speed control is optimized to
virtually eliminate cogging.

Current - Current is a measure of power flow through

the electronics, usually measured in amps. If you look
at wire like a garden hose, current is a measure of how
much water is flowing through the hose.

ESC (Electronic Speed Control) - An electronic speed

control is the electronic motor control inside the
model. The VXL-3s electronic speed control uses

advanced circuitry to provide precise, digital
proportional throttle control. Electronic speed
controls use power more efficiently than mechanical
speed controls so that the batteries run longer.
An electronic speed control also has circuitry that
prevents loss of steering and throttle control as the
batteries lose their charge.

kV Rating - Brushless motors are often rated by their kV

number. The kV rating equals no-load motor rpm with
1 volt applied. The kV increases as the number of wire
turns in the motor decreases. As the kV increases, the
current draw through the electronics also increases.
The Velineon 3500 motor is a 10-turn, 3500 kV
motor optimized for the best speed and efficiency in
lightweight 1/10 scale models.

LiPo - Abbreviation for Lithium Polymer. Rechargeable

LiPo battery packs are known for their special
chemistry that allows extremely high energy density
and current handling in a compact size. These are
high performance batteries that require special care
and handling. For advanced users only.

mAh – Abbreviation for milliamp hour. A measure of the

capacity of the battery pack. The higher the number,
the longer the battery will last between recharges.

Terminology

KC1211_R01 Velineon_System_Man.indd 8

12/1/09 6:01:45 PM

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