INTRODUCING
THE RACER-EX ESC
The Novak Racer-EX ESC combines the simplicity of One-
Touch Set-Up
TM
, high frequency operation, huge 12-gauge
SuperFlex
TM
wire, and CLC II™ current limiter circuitry to
provide maximum power and driveability.
Features include Radio Priority Circuitry™ to maintain control
of the radio even after the battery pack has "dumped", dual-
level thermal protection, and digital glitch-prevention to
reduce radio problems.
Other features include the Novak Input Plug System
TM
and
exclusive Solid State RVP
TM
for maximum reverse voltage
protection without the use of fuses.
IMPORTANT PRECAUTIONS
(ESC= ELECTRONIC SPEED CONTROL)
• Do not operate near water! Never allow water, moisture,
or any liquid to touch the ESC.
• Never use more than 10 cells in main battery pack.
• Do not mix instructions. If you are building a kit that has
a mechanical speed control, do not use the wiring
diagram included with the kit.
• Never cut or splice the ESC input harness wires.
• Three 0.1
µ
F (50V) ceramic capacitors must be properly
installed on every motor.
• A Schottky diode must be properly installed on every
motor.
• Never allow the heat sinks to touch each other or any
exposed metal or graphite surface.
• Always disconnect the battery pack from the ESC when
not in use.
• Never turn on the ESC before plugging it into the
receiver and switching on the transmitter.
• Do not to touch the heat sinks when they are hot.
PLEASE FOLLOW ALL INSTRUCTIONS CAREFULLY
OPERATING INSTRUCTIONS
OPERATING INSTRUCTIONS
ADDITIONAL SPECIFICATIONS
Voltage Input
4 to 10 Cells (1.2VDC/cell)
Case Size (w/o heat sinks)
1.63" x 1.72" x 0.65"
Weight
2.10 oz. Race-ready
On-Resistance
0.0012
Ω
Rated Current
350 amps
Braking Current
140 amps
BEC Output
6.0 Volts/1.5 Amps
NOVAK ELECTRONICS, INC.
• 18910 Teller Avenue Irvine, CA 92612 •
www.teamnovak.com
PART #1655
AMPS
ONE-TOUCH
SET UP
LED
SET
MADE IN USA
AMPS
20
60
40
80
O
F
F
CL
PREVENTING RADIO PROBLEMS
Radio interference can cause the speed control to rapidly switch between forward and full brakes,
causing overheating of the brake transistors and possible damage to the ESC. Here are a few of the
most common causes of radio problems:
• CAPACITORS NOT INSTALLED ON MOTOR
Electric motors generate radio noise that can
interfere with the receiver. To prevent radio problems, every motor should have three 0.1
µ
F
(50V) ceramic capacitors installed (see back page).
• RECEIVER MOUNTED ON GRAPHITE OR METAL CHASSIS
Graphite and metal chassis transmit
radio noise generated by the motor. To prevent radio problems, mount the receiver on the rear
shock tower or away from the chassis. If the receiver is mounted on the chassis, stand it on its
side with the crystal as far away from the chassis as possible.
• RECEIVER ANTENNA CUT OR MOUNTED WRONG
If the receiver's antenna is cut, the range
will be reduced. The antenna should be mounted away from the motor and power wires. Coiling
the antenna wire, or keeping the entire antenna inside the body will reduce the range and
increase the risk of radio problems.
CURRENT LIMITER ADJUSTMENT
The Racer-EX ESC is equipped with CLC II current limiting circuitry. CLC II can be used to prevent
excessive amp draw which wastes energy and overheats the batteries and motor. And, for slippery
tracks, CLC II can be used as traction control.
New CLC II is smooth and efficient. The "OFF" position
bypasses the current limiter for maximum punch.
Setting CLC II is simple— just turn the knob to the maximum amp
draw. Use practice time at the track to set the current limiter to
match track conditions.
•
TO REDUCE WASTED ENERGY
We recommend starting at a high level and adjusting downward
to suit the track conditions. The perfect setting is just above the point where the CLC II starts
making the acceleration of the motor feel slower.
•
TO CONTROL TRACTION ON SLIPPERY TRACKS
We recommend starting at the lowest setting
and adjusting upward. The perfect setting is just below the point where the car is difficult to
control during acceleration.
•
FOR MAXIMUM PUNCH
Turn the knob to the "OFF" position and get ready to race!
QUICK SET-UP
ONE-TOUCH SET-UP NOTES:
• The motor does not run during the Set-Up sequence
(even if it is connected).
• The ESC memorizes the settings until the Set-Up se-
quence is run again.
• If the transmitter settings are changed, run the Set-Up
sequence again.
PRO TUNING FOR ONE-TOUCH SET-UP
:
•
PREVENTING BRAKE LOCK-UP
For slippery tracks, the
maximum brake setting may cause the brakes to lock
up. To reduce the amount of braking power, set the ESC
normally, then reduce the LOW ATV/EPA/ATL setting on
the transmitter. Make sure to return the setting to
maximum before the Set-Up sequence is run again.
•
INSTANT-ON THROTTLE
For drag racing, some drivers
want to reach maximum throttle quickly. To make the
throttle reach 100% before the trigger is at 100%, hold
the throttle at less than maximum during the Set-Up
sequence. This setting is not recommended for applica-
tions requiring smooth throttle response.
INSTALL THE HEAT SINKS
Turn ESC power switch off to avoid short-
circuiting. Press the large heat sink onto the row
of 5 transistors and the small heat sink onto the
row of 3 transistors. See Step 2 on back page for
complete instructions.
CONNECT THE BATTERY
Solder the ESC to a fully
charged 4 to 10 cell NiCad
battery pack (1.2 VDC/cell)
as shown.
TURN ON THE TRANSMITTER
See Step 5 on back page for
proper transmitter adjustments.
TURN ON THE ESC
PLUG THE ESC AND SERVO
INTO THE RECEIVER
Plug the ESC input harness into
CHANNEL 2 of the receiver. Plug the
steering servo into CHANNEL 1 of the
receiver. Nothing should be plugged
into the BATTERY slot.
Make sure the proper input plugs are
installed on the ESC and servo (see Step
1 on back page).
CONNECT THE MOTOR
The motor must have three 0.1
µ
F
capacitors and one Schottky diode
properly installed (see Step 4 on back
page). Switch off the ESC and solder the
ESC wires to the motor as shown, then
turn on the ESC and start driving!
Black Wire from ESC to
Battery Negative (-)
Blue Wire from
ESC to Motor
Negative (-)
Red Wire
from ESC to
Battery Positive
(+) to Motor
Positive (+).
If necessary, refer to back page for more detailed instructions.
Trail excess wire off antenna mast
(do not cut or coil)
Blue FET wire
7
4
3
2
5
1
PRODUCT WARRANTY
The Racer-EX ESC is guaranteed to be free from defects in materials or work-
manship for a period of 120 days from original date of purchase (verified by
dated, itemized sales receipt). This warranty does not cover incorrect instal-
lation, components worn by use, damage from using fewer than 4 or more
than 10 cells, not using heat sinks, short circuiting the heat sinks, compo-
nent damage from excessive force when applying the heat sinks,
cross-connection of battery/motor, using the same type and gender plugs for
both the battery and motor connections, damage from excessive force to the
Current Limiter knob, not properly installing three 0.1
µ
F (50V) capacitors on
the motor, damage from incorrect installation of an external receiver battery
pack, damage from incorrect installation of a FET servo, any splices into the
input harness or switch harness, component damage from excessive force to
the "SET" button, tampering with the internal electronics, allowing water,
moisture, or other foreign material to enter ESC or get onto PC board, incor-
rect installation of an alternate input plug, allowing any exposed wire to
short-circuit, or 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.
Because Novak Electronics, Inc. has no control over connec-
tion and use of the ESC, 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 be-
fore leaving our facility and is, therefore, considered
operational. By the act of connecting/operating ESC,
the user accepts all resulting liability.
SET THE ESC
FOLLOW STEPS A, B AND C
Pull full throttle on the
transmitter and hold
until the ESC light turns
solid green.
Push and hold full brakes on the
transmitter until the ESC light
blinks green. Let the throttle
return to neutral and wait until
the ESC light turns solid red.
With the transmitter throttle in
the neutral position, press and
hold the ESC "SET" button until
the ESC light turns red, then
release the "SET" button.
AMPS
ONE-TOUCH
SET UP
LED
SET
MADE IN USA
AMPS
20
60
40
80
O
F
F
CL
B
C
A
6
