MXL-6s Cooling Fan
The cooling fan on the MXL-6s ESC is not
water resistant. To avoid damaging the fan, it
must be removed prior to driving your model
in wet conditions. To remove the cooling fan:
1.
Remove the cover from the receiver box
and unplug the connector.
2. Reinstall the receiver box cover.
Note: When reinstalling the receiver box
cover, ensure that the O-ring is properly
seated in the groove around the receiver
box (for more information, see “Receiver Box:
Maintaining a Watertight Seal” in your Owner’s
Manual).
3. Remove the two 3x35mm cap screws from
the ESC mount. Remove the ESC mount.
4. Release the two tabs on the side of the fan
shroud to remove it from the ESC.
5. Remove the fan from the shroud.
6. Reinstall the shroud on the ESC.
7. Reinstall the ESC mount over the ESC.
Secure the mount with the two 3x35mm
cap screws.
Transmitter Setup
Before attempting to program your MXL-6s, it is important to make sure
your TQi transmitter is properly adjusted (set back to the factory defaults).
Otherwise, you may not get the best performance from your speed control.
The transmitter should be adjusted as follows:
1. Set the throttle neutral switch to the 50/50 setting. This adjusts the
transmitter’s throttle trigger throw to 50% for throttle and 50% for
braking and reverse. Experienced users may wish to use the 70/30
setting if more broad proportional control is desired in forward than with
braking and reverse. This might be desirable in a racing environment
where reverse is disabled.
2. Set the throttle trim control to the middle 0 setting.
3. Set the Channel 2 servo reversing switch to the left position. Do not
change the position of any of the servo reversing switches after
programming the MXL-6s.
4. You are now ready to program your speed control.
Low-Voltage Detection Setting
The MXL-6s is optimized to operate out of the box with these battery
configurations:
•
7-cell (8.4v) NiMH batteries (2)
•
2S (8.4v) LiPo batteries (2)
•
3S (11.1v) LiPo batteries (2)
Note: The low-voltage detection (LiPo mode) does NOT need to be disabled
when using 7-cell (8.4v) NiMH batteries (2).
If you want to disable Low-Voltage Detection while running NiMH batteries in
your model, follow the steps below to access the programming mode. Never
use LiPo batteries while Low-Voltage Detection is disabled.
1. Turn your transmitter on and hold full throttle.
2. While holding full throttle, plug a fully charged battery into the speed
control. Note : You may need assistance to complete this step.
3. Continue to hold full throttle. After a few seconds, you will hear four
consecutive beeps, signaling full-throttle calibration.
4. Continue to hold full throttle. Once you hear a second set of four beeps,
release the throttle to neutral. You are now in programming mode.
Note : Low-Voltage Detection is the seventh programming mode. In order
to skip Programming Modes 1–6, make sure you push the throttle trigger to
REVERSE, then release to neutral, as indicated in the steps below. Failure to do
so may cause unintended reprogramming of your speed control, resulting in
poor performance of your vehicle.
5. Push the throttle trigger to the reverse position and hold until the speed
control beeps quickly, then release. The speed control will beep once, pause,
and then beep twice to signify that you are in Programming Mode 1, Option 2.
6. Continue to push reverse/release to neutral until you hear seven beeps, a pause,
and then one beep, signaling you are in Programming Mode 7, Option 1.
7. Pull the trigger to full throttle and hold until the speed control beeps quickly,
then release. This will disable Low-Voltage Detection. You should hear
eight beeps, a pause, then one beep, signaling you have moved to the next
programming mode.
8. At this point, you can power o the speed control; then, power it back on to
return to normal operation, or you can continue to push reverse/release to
neutral six more times, making sure that you hear the fast conrmation beeps
for each action. After the sixth time, the speed control will emit a tone, indicating
the end of the programming cycle and the return to normal operation.
Note: To enable Low-Voltage Detection for use with LiPo batteries, follow steps
1–5 above. For steps 6 and 7, continue to push reverse/release to neutral until
you hear seven beeps, a pause, and then two beeps. Pull the trigger to full
throttle and hold until the speed control beeps quickly, then release. This will
enable Low-Voltage Detection. Complete step 8 to return to normal operation.
If you have questions or require technical assistance while performing this
procedure, please contact Traxxas Technical Support at 1-888-TRAXXAS
(1-888-872-9927). Outside of the US, call +1-972-265-8000.
MXL-6s Setup Programming
(Calibrating your ESC and transmitter)
The MXL-6s speed control should not need reprogramming with normal use;
however, if you install a dierent radio system in your model, or change the
transmitter’s throttle-neutral setting from 50/50 to 70/30, you will need to
reprogram the speed control. Follow these instructions to reprogram the speed
control:
1. Install the batteries into the battery compartments and plug the batteries
into the speed control.
2. Switch on your transmitter.
3. Hold full throttle while you switch on the MXL-6s controller. After a few
seconds, you will hear multiple tones and the RED LED will shine.
4. Hold full brake. After a few seconds, you will hear multiple tones and the
YELLOW LED will shine.
5. Release the trigger to the neutral position. After a few seconds, you will hear
multiple tones and ALL THE LEDs will shine.
6. Wait a few more seconds for the speed control to ‘arm,’ indicated by a double-
tone. You are now ready to drive.
Disconnect Batteries After Use
Always disconnect the batteries from the speed control when you are nished
using your vehicle. The switch on the speed control only shuts o power to the
receiver and servos. The speed control continues to draw power as long as it is
plugged in and may over-discharge your batteries if they are left connected to
the speed control.
The Traxxas MXL-6s electronic speed control is powered by Castle.
Additional features and instructions are available in the Castle Creations
Driver’s Ed Guide at Traxxas.com.
Traxxas High Current Connector
Your MXL-6s is equipped with the Traxxas High-Current Connector. Standard
connectors restrict current flow and are not capable of delivering the power
needed to maximize the output of the MXL-6s. The Traxxas connector’s gold-
plated terminals with a large contact surfaces ensure positive current flow with
the least amount of resistance. Secure, long-lasting, and easy to grip, the Traxxas
connector is engineered to extract all the power your battery has to give.
To run this system, your batteries must be equipped with Traxxas High-Current
Connectors. Batteries can either be purchased new with Traxxas connectors
installed or Traxxas connectors can be purchased to install on battery packs you
already own. For best performance, your system requires NiMH battery packs that
have cells rated for high discharge and use high-quality, low-resistance assembly
techniques. Cheaply made battery packs do not retain their performance
characteristics after repeated uses in high-powered electric applications. They will
lose their punch and run time and may require frequent replacement. In addition,
poor-quality, high-resistance cell connectors could fail, requiring disassembly and
repair. The main goal is to reduce all sources of high resistance in the pack. This
includes the connector, the wire, and the bars attaching the cells together. High
pack resistance will create additional heat and rob you of the full power the cells
are capable of producing.
