LRP electronic SXX Competition User Manual

RA00271
order.no.::
80900
80950
user manual
LRP electronic GmbH
Wilhelm-Enssle-Str. 132-134
73630 Remshalden, Germany
info@LRP.cc - www.LRP.cc
1. connections & explanations
Power Capacitor
Sensor Connector
(underneath solder tabs)
Fan Connector
HEATSINK: To achieve best perfomance even under extreme conditions, the heatsink has been directly mounted to
the speed-control. This ensures the best possible heat transfer away from the speed-control.
Caution: Never attempt to remove the heatsink or your SXX may get damaged if you try to do this. The heatsink is
an integral part, glued to the fet's and therefore cannot be removed.
PLUGGED FAN (SXX TC spec #80950 only!): your speed-control contains a high-performance low-profile (25x25x-
7mm) fan and blue anodised aluminium screws. the fan can be mounted on top of the heatsink and should be used
for tough applications in hot conditions such as TC Modified or 4wd OffRoad. As a guideline we recommend using
the fan with motors lower then 5.0T. The fan get's plugged into the 3-pin connector on the front and there is a
replacement fan set available, please refer to complete line-up under point 6 „Spare- and Optional Parts".
On SXX Competition (#80900) version you can also connect the optional fan to the same „port" if needed.

2. installation tips

• Position the speed-control and capacitor where they are protected in the event of a crash and gives you easy
access to the connectors and buttons.
• Mount the speedo and capacitor using the supplied thick/black doubled-sided tape
• Make sure there is enough clearance between the speed-control, power-wires, antenna and receiver. Avoid
any direct contact between power components, the receiver or the antenna as this can cause interference. If
interference occurs, position the components at a different place in the model.
• The aerial should be run vertically up and away from the receiver. Avoid contact with any parts made of carbon
fibre or metal. If the aerial is too long, don't coil up the excess length. See also the instructions supplied with
your radio control system.
• Because of the physical principles of brushless technology, the speed-controls do get a little hotter then brushed
systems. Therefore it is required to let the speed-control cool down completely after every run.
3. wires & installation
The SXX's come supplied with flexible silicone power-wires (#80900 = 2.6mm² / #80950 = 3.3mm²) without
connectors. Be very careful with the correct wire sequence/colors since an incorrect connection may damage the
speed-control! Avoid creating solder bridges on the solder-tabs and isolate all connections carefully.
Caution: Avoid soldering longer then 5sec per soldering joint when replacing the power wires on the speed-control
and motor to prevent possible damage due to overheating of the components!
• Connect the speed-control to the receiver (position: Channel 2
• Blue power-wire  Speedo MOT.A to motor „A"
• Yellow power-wire  Speedo MOT.B to motor „B"
• Orange power-wire  Speedo MOT.C to motor „C"
• Connect the hall sensor cable to the speed-control (underneath the solder-tabs) and the motor.
+ -
C B A
• Doublecheck all connections before connecting the speed-control to a battery.
CAUTION: If battery is connected with reversed polarity it will destroy your speed-control!
• Red power-wire  Speedo BAT+ to battery „Plus"
• Black power-wire  Speedo BAT- to battery „Minus"
• The speed-control is now ready to be set-up (see section 5).
© LRP electronic GmbH 2009
Brushless competition speed-control
ifmar world champion 2008/2009
#80900: >4.0t motorlimit
#80950: >2.5t motorlimit
RECEIVER CONNECTING WIRE: The SXX is equipped
with an LRP Multicon receiver wire. As supplied, it
will easily fit in all ordinary receivers. Make sure you
connect it to receiver with correct polarity and use
channel 2.
SENSOR CONNECTOR: located underneath the sol-
der tabs. The bi-directional multipole sensor wire
connects the speed-control and the motor. Always
use the sensor wire and do not alter or modify this ca-
ble! There are replaceable/optional hall sensor wires
available, please refer to complete line-up under point
6 „Spare- & Optional-Parts".
POWER WIRES: For maximum performance, flexible
silicone power wires without any connectors are
used. The unique splitted solder-tabs allow easy and
convenient replacement of the power wires. Never-
theless some soldering skills are required. Avoid sol-
dering longer then 5sec per soldering joint to prevent
possible damage to the speed-control due to overhe-
ating of the components! There are full replacement
power wire sets available, please refer to complete
line-up under point 6 „Spare- and Optional Parts".
C
B
A
Dear Customer,
thank you for your trust in this LRP product. By purchasing a LRP SXX Competition / LRP SXX TC spec brushless
speed-control, you have chosen one of the most advanced and successful speed-controls of today. This speed-
control with all of its high-tech features and specially selected electronic components is one of the best speed-
controls currently available on the market. IFMAR World Champion 2008/2009!
• Pure Brushless Competition Speed-Control
• C³ (Copper Core Cooling) Technology
• New „X-Brake"
• Internal-Temp-Check System 2
• Launch Control
Please read the following instructions carefully before you start using your speed control. This user guide contains
important notes for the safety, the use and the maintenance of this product. Thus protecting yourself and avoid damages
of the product.
Proceed according to the user guide in order to understand your speed control better. Please take your time as you will
have much more joy with your product if you know it exactly.
This user manual shall be kept in a safe place. If another customer is using this product, this manual has to be handed
out together with it.

4. specifications

#80900 #80950
Pure Brushless Competition yes
Forward/Brake yes
Footprint 30.5x34.0mm
Height 16.0mm 21.0mm
Weight (excl. wires) 30.0g 36.0g
Voltage Input 4.8-7.4V
Typ. Voltage Drop* @20A 0.013V / phase
Rated Current* 764A / phase
Compatible winding styles Star
Rec. Motor Limit with 5 cells over 4.0T over 2.5T
Rec. Motor Limit with 6 cells over 4.5T over 3.0T
Power Wires 2.6mm² 3.3mm²
Plugged Fan no
* Transistors rating at 25°C junction temperature Specifications subject to change without notice.

5. radio- / speed-control setup

In setup mode the SXX's stores every step (e.g. learning your radios neutral and endpoints) when you press the SET
button. All the settings will be stored in the SXX's memory even if it will be disconnected from the battery.
TRANSMITTER SETTINGS
Setup the following basic functions on your transmitter (if available):
Description other names in radio
Throttle Travel High ATV, EPA
Brake Travel Low ATV, EPA, ATL
Throttle Exponential EXP, EXPO
Neutral Trim SUB Trim
Servo Reverse Throttle Reverse
If your transmitter doesn't offer any of above functions, it's already in „basic setup" mode.
• Ensure that the speed-control is not connected to the drive battery and is switched off.
• Remove motor pinion or ensure that the wheels of the model are free to rotate.
• Switch the transmitter on and set the transmitter throttle stick to neutral.
• Connect the speed-control to the battery and switch the unit on.
• Hold the SET button pressed for at least 3sec.
 You entered setup mode and the SET LED flashes blue (it will flash until the setup is completed).
• Leave transmitter in neutral position and press the SET button once.
 Neutral setting is stored , MODE LED flashes yellow and the motor beeps.
• Hold full throttle on transmitter and press the SET button once.
 Full-throttle setting is stored, MODE LED flashes red.
• Hold full brake on transmitter and press the SET button once.
 Brake setting is stored, LED's glow red (MODE) and blue (SET).
• This completes the setup procedure and your SXX is ready to use.
• If you make a mistake during the setup procedure, don't worry: Disconnect the battery for about 10sec and start
again from the first step.
• At the end of each run switch of the car, and then switch off the transmitter.
• At the start of each run switch on the transmitter first, then switch on the car.
• For storage of the car, disconnect the drive battery at any time!
CHECKING THE FUNCTIONS:
Check the LED's when moving your throttle stick and you will see if everything is setup correctly.
FUNCTION STATUS
Neutral (automatic brake inactive)
Neutral (automatic brake active)
Forward partial throttle
Forward full throttle
Brake partial brake
Brake full brake
6. spare- & optional-parts
LRP offers a comprehensive line of accessories, as well as particular spare- and optional items. Here you find an
overview, for a full picture please visit our website at www.lrp.cc:
Spare parts:
#81910 Sensor-Wire 200mm
#82505 Power-Wire Set Brushless 2.6mm² (red, black, blue, orange, yellow)
#82506 Power-Wire Set Brushless 3.3mm² (red, black, blue, orange, yellow)
#82511 Low Profile cooling fan (only for 80950 speedo)
Optional parts:
#819307 Sensor-Wire „HighFlex" 70mm
#819310 Sensor-Wire „HighFlex" 100mm
#819315 Sensor-Wire „HighFlex" 150mm
#819320 Sensor-Wire „HighFlex" 200mm
#81907 3.3mm² Powerwire black (1.0m)
#81908 3.3mm² Powerwire blue (1.0m)
• Small footprint
• ADPC2™ Power Profiles
• AutoCell System
• 4, 5, and 6 cell optimised
• Sensored Design
#80900
B.E.C.
C³ Technology
X-Brake
High Frequency
Sensored Brushless System
Multi-Protection-System
4, 5, 6 cell optimised
Internal-Temp-Check System 2
Launch Control
Blue LED
4 adj. Modes (AutoCell System,
ADPC2™Power Profiles, Initial-
and Automatic-Brake)
yes
Required Setting
100%
100%
start with 0
centre
any setting, don't change after set-up procedure!
MODE LED SET LED
-- off blue
-- red off
yellow off
yellow blue
red off
red blue
#80950
6.0V/3.0A
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes