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SET-UP PHOTO
Trail excess wire
off antenna mast.
Blue wire
(Do not cut or coil)
(motor negative)
(–)
(+)
Red wire
(battery &
motor positive)
Tip: Twist motor
wires to reduce
(+)
radio noise!
(–)
Black wire
(battery negative)
Mount switch
where it will be
easy to get to.
STEP 4
TRANSMITTER ADJUSTMENTS
For proper ESC operation adjust transmitter as follows:
1. Set HIGH ATV or EPA to maximum setting.
[Controls amount of throw from neutral to full throttle]
2. Set LOW ATV, EPA, or ATL to maximum setting.
[Controls amount of throw from neutral to full brakes]
[Reduce this after programming to reduce amount of brakes]
3. Set EXPONENTIAL to zero.
[Controls the linearity of the throttle channel]
4. Set THROTTLE CHANNEL TRIM to middle setting.
[Adjusts neutral position/Increases or decreases coast brakes]
5. Set CHANNEL REVERSING SWITCH to either position.
6. Set ELECTRONIC TRIGGER THROW ADJUSTMENT
to 70% throttle and 30% brake throw (or 7:3).
[Adjusts pistol-grip transmitter's throttle trigger throw]
7. Set MECHANICAL TRIGGER THROW ADJUSTMENT
to position with 2/3 throttle and 1/3 brake throw.
[Adjusts pistol-grip transmitter's throttle trigger throw]
STEP 5
SPEED CONTROL PROGRAMMING
Before beginning this step, the speed control should be
connected to the receiver and to a charged 4 to 7 cell
battery pack, and the transmitter should be adjusted.
1. CONNECT THE BATTERY
2. TURN ON TRANSMITTER THEN THE SPEED CONTROL
Slide the
switch to the
ON/OFF
ON
3. PRESS AND HOLD ESC'S 1-TOUCH BUTTON
With the transmitter throttle in the neutral position,
press and hold the
button on the speed control
SET
until the status
LED
turns solid red.
4. RELEASE ESC'S 1-TOUCH BUTTON
5. PULL THROTTLE TO FULL-FORWARD POSITION
Hold it there until the status
LED
NOTE: The motor will not run during programming even
if it is connected to the speed control.
6. PUSH THROTTLE TO FULL-BRAKE POSITION
Hold it there until the status
LED
7. RETURN TRANSMITTER THROTTLE TO NEUTRAL
The status
LED
will turn solid red, indicating that the
throttle is in the neutral position and also that proper
programming has been completed.
The speed control is programmed and ready to race!
If transmitter settings are changed, it will be necessary
to complete the programming sequence once again.
If you experience any problems during programming,
turn off the speed control and repeat programming.
NOVAK ELECTRONICS, INC.
18910 Teller Avenue
Irvine, CA 92612
949-833-8873
www.teamnovak.com
STEP 6
THROTTLE PROFILE SELECTION
The microprocessor in the Dually speed control allows you
to choose between two user-selectable throttle profiles that
are programmed at the factory. This chart gives you the
specifics of each profile:
Profile
1
2
Experiment with both profiles to determine which works best for you!
TO SELECT THE THROTTLE PROFILE:
1. TURN ON THE TRANSMITTER
2. TURN ON THE SPEED CONTROL
3. PRESS & HOLD ESC'S ONE-TOUCH BUTTON until the
status LED turns solid green. The LED will first turn red,
then a few seconds later it will turn green.
4. RELEASE ONE-TOUCH BUTTON and then the status
LED will begin to blink red. The speed that the LED blinks
indicates the active profile.
Quick = MODIFIED
5. PRESS & RELEASE ONE-TOUCH BUTTON TO SELECT
PROFILE Each press will change to next consecutive
profile number.
NOTE: After profile #2, the sequence begins again at profile #1.
6. If ONE-TOUCH button is not pushed for about five seconds,
the ESC LOADS THE SELECTED PROFILE INTO
MEMORY, and the status LED turns solid red, indicating
that the speed control has exited the profile selection
mode and is in neutral.
Illustration below shows graphical display of ESC parameters
Keep receiver and
antenna away from
motor, servo, battery,
and power wires.
STEP 7
CURRENT LIMITER ADJUSTMENT
The Dually speed control is equipped with CLC III current
limiting circuitry. The LIMITER pot controls the maximum
amount of current going to the motor upon acceleration.
The current limiter can be used to prevent excessive amp
draw which wastes energy and overheats the batteries and
motor. For slippery tracks this also acts as traction control.
The Dually's current limiter is smooth and efficient, and
setting the CLC III is simple. Use the included One-Touch
Tool (or a small flat blade screwdriver) to turn the LIMITER
adjustment pot to the desired setting. Before adjusting the
current limiter, set up the car similar to how it will be when
racing. Use practice time at the track to set the current
limiter to match track conditions.
• TO REDUCE WASTED ENERGY
Start at a high current setting and adjust the LIMITER pot
down (counter-clockwise) to suit the track conditions. The
recommended setting is just above the point where the
current limiter starts reducing the acceleration.
• TO CONTROL TRACTION ON SLIPPERY TRACKS
Start at the lowest current setting and adjust the LIMITER
pot upward (clockwise). The recommended setting is just
below the point where the car is difficult to control or
begins to slip during acceleration.
position.
• FOR MAXIMUM PUNCH
Set the LIMITER pot to the "OFF" position. No current
limiting will occur, and you will receive maximum punch.
RECEIVER BATTERY PACK
turns solid green.
The Dually speed control should not require an external
receiver battery pack for most racing situations. The built-
in Radio-Priority Circuity™ provides complete control of
the steering servos even after the main battery pack has
blinks green.
'dumped' and can no longer provide the power required
to turn the motor. However, applications with multiple
high-power servos, and some 4-cell set-ups may require
an external receiver battery pack to prevent overloading
or underpowering of the speed control's voltage regulator.
1. Plug the external 5 cell nickel cadmium receiver battery
pack into the battery slot of the receiver.
2. Leave the speed control's ON/OFF switch in the OFF
position. This switch is not used with this configuration.
3. Use the ON/OFF switch on the external receiver battery
pack to turn the system power on and off.
Description
Drive Frequency
Minimum Drive
kHz
% Full Drive
(**default)
**Modified
7.8
Stock
1.0
Slow = STOCK
TROUBLE-SHOOTING GUIDE
This section describes possible speed control problems,
causes, and solutions.
Steering Channel Works But Motor Will Not Run
• Speed control has thermally shut down––Allow ESC to
cool down––Use milder motor or smaller pinion gear.
• Check motor connections. Check motor and brushes.
• Make sure ESC is plugged into the throttle channel of
3.0
receiver. Check throttle channel operation with a servo.
Check wiring color sequence of receiver signal harness.
6.0
• Possible internal damage––Refer to Service Procedures.
Receiver Glitches/Throttle Stutters During Acceleration
• Motor capacitors broken or missing––Refer to Step 3.
• Receiver or antenna too close to speed control, power
wires, battery, or motor––Refer to Step 2.
• Bad connections––Check wiring and connectors.
• Motor brushes worn––Replace brushes.
• Excessive current to motor––Use a milder motor or a
smaller pinion gear.
Motor and Steering Servo Do Not Work
• Check wires, receiver signal harness wiring and color
sequence, radio system, crystals, battery and motor con-
nectors, and battery pack.
• Possible internal damage––Refer to Service Procedures.
Model Runs Slowly / Slow Acceleration
• Check motor and battery connectors––Replace if needed.
• Bad battery or motor––Check operation with another.
• Incorrect transmitter or speed control adjustment––
Refer to Steps 4 and 5.
• Optional external Schottky diode installed backwards
or damaged––Refer to Step 3.
Motor Runs Backwards
• Motor wired backwards––Check wiring and reverse.
• Backwards motor timing––Reverse motor end bell.
ESC Is Melted Or Burnt/ESC Runs With Switch Off
• Internal damage––Refer to Service Procedures.
*For more help call our Customer Service Department.
SERVICE PROCEDURES
Before sending in your Dually for service, review the
Trouble-Shooting guide and the instructions. The ESC
may appear to have failed when other problems exist.
PLEASE NOTE: Speed controls that operate normally
when received will be charged a minimum service fee
and return shipping costs.
WHAT TO SEND: Fill out all of the information requested
on the enclosed ESC SERVICE CARD (also available on
website) and return it with your speed control.
WARRANTY WORK: For warranty work, you MUST CLAIM
WARRANTY on the ESC SERVICE CARD and include a valid
cash register receipt with the purchase date on it, or an
invoice from previous service work. If warranty provisions
have been voided there will be a service charge.
SERVICE COSTS: Customer is responsible for all service
costs (parts, labor, and shipping/handling charges). See
ESC SERVICE CARD for payment and shipping options.
ADDITIONAL NOTES:
• Novak Electronics, Inc. does not make any electronic
components (transistors, resistors, etc.) available for sale.
• To provide the most efficient service to our customers, it
is not our policy to contact customers by phone or mail.
• Hobby dealers/distributors are not authorized to replace
speed controls thought to be defective.
• If a hobby dealer sends your speed control for service,
submit a completed ESC SERVICE CARD to the dealer
and make sure it is sent with the speed control.
PRODUCT WARRANTY
Novak Electronics, Inc. guarantees the Dually speed control to be
free from defects in materials or workmanship for a period of 120
days from original date of purchase (verified by dated, itemized sales
receipt). Warranty does not cover incorrect installation, components
worn by use, damage from using fewer than 4 or more than 7 cells
(1.2 volts DC/cell) input voltage, short-circuiting heat sinks, cross-
connection of battery/motor, reverse voltage application, damage
resulting from thermal overload, damage from incorrect installation
of receiver battery pack, damage from excessive force while install-
ing heat sinks, not installing three 0.1 F(50V) capacitors on motor,
splices to input or switch harnesses, damage from excessive force when
using SET button or BRAKE pot or from disassembling case, tamper-
ing with internal electronics, allowing water, moisture, or any other
foreign material to enter ESC or get onto PC board, incorrect instal-
lation of alternate input plug plastic, allowing exposed wires or solder
posts to short-circuit, or any damage caused by a crash.
In no case shall our liability exceed product's original cost. We reserve
the right to modify warranty provisions without notice.
Because Novak Electronics, Inc. has no control over the connection
and use of the speed control, 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 our facility and
is, therefore, considered operational. By the act of connecting/operating
ESC, the user accepts all resulting liability.
CUSTOMER SERVICE
CUSTOMER SERVICE HOURS (PST)
Monday-Thursday: 8:00am-5:00pm
Friday: 8:00am-4:00pm
(949) 833-8873 • FAX (949) 833-1631
©1999 Novak Electronics, Inc. • All Rights Reserved
No part of these operating instructions may be reproduced without the
written permission of Novak Electronics, Inc.
All Novak speed controls are designed and manufactured in the U.S.A.
Dually™, HYPERFET III™, One-Touch Set-Up™, Radio Priority Circuitry™,
Digital Anti-Glitch Circuitry™, Input Plug System™, and CLC III are all
trademarks of Novak Electronics, Inc.
Printed in the U.S.A.
(closed every other Fri.)
9/99 • #WebIM-1660-2
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