All modes are available for brushless and brushed motors (speedo adapts automatically). The LRP SPX Com-
petition StockSpec features 4 modes which enable you to adjust it to YOUR special requirements. The factory
settings are shown in grey colour.
MODE.1 (AutoCell System):
we recommend using value 2 for 4-6 cells NiMH racing purposes, which disengages the LiPo protection.
MODE LED
Value 1
Value 2
Yellow
LiPo/NiMH
Automatic
4-6cell NiMH
Racing Mode
MODE.2 (ADPC™ Brushless Power Profiles):
only with connected Brushless motor
allows you to adjust the SPX Competition StockSpec to your likes. Either you run on stock or modified motors or
on slippery or high-traction surfaces, we have incorporated a profile for you!
Higher value means more overall power and more aggressive throttle response.
MODE.2 (DEMS Brushed Power Profiles):
only with connected Brushed motor
Higher value means more overall power and more aggressive throttle response.
MODE.3 (Initial Brake):
Allows you to set a certain level of „hand-brake-effect“.
Team Tips
: A good starting point for the brake setting on your radio is 80% (bonded) and 70% (sintered) for all
classes. Make sure you do the radio-setup with all settings on the radio on 100%.
MODE.4 (Automatic Brake):
allows you to set a slight braking action which is applied in the neutral
range. This enables you to simulate the feel of a brushed motor and also hold the throttle on longer when ente-
ring a turn. For brushless motors you achieve the same natural slowdown as a brushed motor with no autobrake
when you set value 1-2 (for motors with bonded magnets) or 0-1 (for motors with sintered magnets).
In setup mode the LRP SPX COMPETITION STOCkSPEC stores every step when you press the SET button. All
the settings will be stored in the speed-controls memory even if the speed-control will be disconnected from
the battery.
6. radio / speed-control set-up
Throttle travel
High ATV, EPA
maximum
Brake travel
Low ATV, EPA, ATL
maximum
Throttle exponential
EXP, EXPO
start with 0
Neutral trim
SUB Trim
centre
Servo reverse
Throttle reverse
any setting, don‘t change after set-up procedure!
TRANSMITTER SETTINGS
Setup the following basic functions on your transmitter (if available):
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 using the supplied plastic screwdriver.
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 LRP SPX COMPETITION StockSpec 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!
FUNCTION
STATUS
MODE LED
SET LED
Neutral (automatic brake inactive)
--
off
blue
Neutral (automatic brake active)
--
red
off
Forward
partial throttle
yellow
off
Forward
full throttle
yellow
blue
Brake
partial brake
red
off
Brake
full brake
red
blue
CHECKING THE FUNCTIONS:
Check the LED‘s when moving your throttle stick and you will see if everything is setup correctly.
7. mode programming
• How to get into „programming the modes“
Press MODE button for 3 or more seconds.
• How to check the stored values
Count the number of flashes of the blue SET-LED
(1x = value 1, 2x = value 2, etc.).
• How to change the value
Press SET button to increase value by one step.
• How to get to the next Mode
Press MODE button once.
• How to leave the programming mode
If you are in MODE.4, press the MODE button
one more time
• Table of settings, values and modes: see below (grey-shaded values show „works default settings“).
MODE LED
Value 0
Value 1
Value 2
Value 3
Value 4
Value 5
Value 6
Yellow/Red
(same time)
No Automatic
Brake
Going from lowest to highest automatic brake setting
(value 1 = minimum / value 6 = maximum)
MODE LED
Value 0
Value 1
Value 2
Value 3
Value 4
Value 5
Value 6
Yellow/Red
(alternate)
No Initial
Brake
Going from lowest to highest inital brake setting
(value 1 = minimum / value 6 = maximum)
MODE LED
Value 1
Value 2
Value 3
Value 4
Value 5
Value 6
Value 7
Value 8
Red
smooth
Power: 1X
smooth
Power: 2X
smooth
Power: 3X
Linear
Power: 4X
Power: 6X
Agressive
Power 6X
ag
Power 7X
Ag+
Power 7X
Modified Motor (4.0 to 8.5t) Power Profiles
Stock Motor (8.5 - 21.5t) Power Profiles
8. special features
Internal-Temp-Check System:
the LRP SPX Competition StockSpec allows you to read-out the maximum
internal temperature that the speedo reached. To store it to the memory, briefly apply brakes after the run before you
turn the switch off. You can convienently read-out the temperature back in the pits since it remains stored until you
turn it on the next time regularly (which will reset the memory). This new feature allows you to accurately check if all
is running well or if you‘re close to shutdown already.
How to read-out the temperature:
Switch at „OFF“ position.
keep MODE button pressed while you turn switch to „ON“ (then release button)
SET LED will start to flash blur (MODE LED is off), now count the number of flashes.
Basics:
• Thermal shutdown of the speedo would occur at 5 flashes.
• The higher the number of flashes, the cooler the speedo ran (e.g. the better it is!)
• Every flash equals to ~8°C temperature decrease
Example:
you count 10 flashes after the run
10 - 5 = 5 (e.g. 5 flashes „away“ from shutdown)
5 x 8°C = 40°C (e.g. you are 40°C away from thermal shutdown and therefore safe!)
Launch Control:
the launch control allows „rocket like“ starts. After activation it gives you more power one time
for the start (this feature is only recommended to be used with touring cars on high traction surfaces!).
Activate launch control
Hold trigger on radio at full brake for 5sec before start. Ready and active!!!
AutoCell System:
Ready for the next battery technology – LiPo batteries! LRP’s exclusive and smart AutoCell
System ensures that LiPo batteries can be used safely without accidentially deep-discharging of the cells. The motor
function will be shut-off and the SET LED will flash if the system recognises very low battery voltage.
ADPC™ Brushless - Power Profiles:
results in more power and better driveability. Depending on the
status of the car (start, acceleration, full speed) the software calculates the perfect motor management. Higher value
means more overall power and aggressive response.
Caution:
Do not advance mechanical timing on the motor when using high ADPC profiles!
D.E.M.S. Brushed - Power Profiles:
The known and world‘s winning D.E.M.S. Brushed Quantum style
power programs have been implemented into the LRP SPX Competition StockSpec as well. Higher value means more
overall power and aggressive response.
Automatic Brushless / Brushed Adaption:
The LRP exclusive Automatic Brushless/Brushed Adap-
tation detects the connected motor type during turn-on/initialisation and adjusts the correct brushless or brushed
operation automatically. No adjustments required by yourself, apart from the correct connection of each motor type
(don‘t forget the hall-sensor-wire for brushless!).
Caution:
keep in mind, when swopping between brushless and brushed motors, that the chosen mode values will
be identical!
Changing Mode settings without the transmitter:
At race events you usually do not have access
to your transmitter, but never mind since you can simply disconnect the receiver lead from the receiver and change
the MODE settings as described in section 7 „Mode Programming“.
Works-Default-Settings:
All LRP speed-controls come factory-adjusted (defaults are grey-shaded above). If
you loose track of the modes, you can restore the works default settings. With the transmitter switched on, hold the
SET button pressed while you switch on the speed-control. This returns the unit to the LRP works default settings.
Power Capacitor:
Never disconnect the power-capacitor! It offers increased punch and additional protection.
IceDrive Design
:
LRP’s secret IceDrive Design results in lower speedo temperature under all racing conditions
and for both bru brushed. Sorry, no further details to be disclosed. Simply a step ahead of the competition!
Forward/Brake:
Uncompromising and outstanding performance for top level competition was the target! There-
fore the LRP engineering team developed a pure forward/brake competition speed-control without reverse function.
Sensored Brushless Technology:
Advanced Digital allows the perfect knowledge of the brushless motor’s
magnet position. This results in perfect motor control at high and low RPM‘s, as well as perfect brake control.
Multi-Protection System, 3-way protection:
The perfect protection against short-circuits (motor),
overload and overheating. If your speed-control faces overload, the motor function will be shut-off for protection
and the SET LED will flash, although the steering function is maintained. Let the speed-control cool down for a few
minutes. If you experience frequent shutdowns, check for the following:
• Correct gear ratio (refer to motor manual for gearing recommendations)
• ADPC setting too high (higher value will heat up motor and speed-control excessively)
• Motor is too strong or motor is damaged.
MODE LED
Value 1
Value 2
Value 3
Value 4
Value 5
Value 6
Red
smooth,
low traction
very
linear
linear, punch
increasing
aggressive
profile
very aggres-
sive profile
super aggres-
sive profile
EXPLANATION:
If no remark, cause can be either with brushless or brushed motor. If „BM“ is indicated,
cause only relating to brushed motor.
9. troubleshooting guide
SYMPTOM
CAUSE
REMEDY
Servo is working, no motor function.
Speed-control plugged in incorrectly
Plug speed-control in Ch 2
Overload protection activated
Allow speed-control to cool down
Wiring problem
Check wires and plugs
Motor defective
Replace motor
BM
- Motor brushes stuck
Check that brushes are moving freely
Speed-control defective
Send in product for repair
No servo and no motor function.
Speed-control plugged in incorrectly
Plug speed-control in with correct polarity
Crystal defective
Replace components one by one.
Receiver defective
Transmitter defective
Speed-control defective
Send in product for repair
Motor runs in reverse when accelera-
ting forward on the transmitter.
BM
- Motor connected incorrectly
Connect motor correctly
Insufficient performance.
E.g. poor brake power, topspeed or
acceleration..
Motor pinion too big or gear ratio too long.
Use smaller motor pinion/shorter gear ratio
Transmitter settings changed after set-up
Repeat set-up procedure
BM
- Motor worn out
Maintain motor
Motor defective
Replace motor
Speed-control defective.
Send in product for repair
Speed-control overheats or switches
off frequently.
Motor stronger than motorlimit or input voltage
too high
Use only motors and batteries which are within
the specifications of the speed-control
Motor pinion too big or gear ratio too long.
Use smaller motor pinion/shorter gear ratio
Drive train or bearing problems.
Check or replace components.
Model used too often without cool-down periods
Let speed-control cool down after every run
Motor never stops, runs at constant
slow speed
Transmitter settings changed after set-up
Repeat set-up procedure
Humidity/water in speed-control
Immediately unplug and dry speed-control
Speed-control defective
Send in product for repair
Radio interference
BM
- Motor suppressors not sufficient
Solder capacitors to motor
Receiver or antenna too close to power wires,
motor, battery or speed-control.
Receiver aerial too short or coiled up
See „Installation Tips“ and „Installation“
Receiver defective, too sensitive;
Transmitter defective, transmitter output power
too low, servo problem
Replace components one by one
Only use original manufacturers crystals
Poor battery connection
Check plugs and connecting wires
Transmitter batteries empty
Replace / recharge transmitter batteries
Transmitter antenna too short
Pull out antenna to full length
