special features
repair procedures / limited warranty
trouBlesHootinG Guide
mode proGramminG
Power Profiles:
the
SPX Zero
is not designed as a „highpower“ stock speed-control but for true stock racing
with equal speeds. Nevertheless it‘s versatile for many racing classes, motors and personal driver preferences!
Depending on the status of the car (start, acceleration, full speed) the software calculates the perfect motor management.
Higher profiles mean more overall power and aggressive response.
Profiles 1-3 are meant for mild modified motors and 4+5 are mild stock profiles, as known from proven Sphere
Competition speed-control. These relate as following
SPX
Zero
Sphere
Competition
Remark
#0
--
„Boost 0“ profile for true stock racing with disabled timing
#1
#1
mild profile, great control for OffRoad or OnRoad Modified
#2
#2
mild profile, great control for OffRoad or OnRoad Modifieds
#3
#3
mild profile, great control for OffRoad or OnRoad Modifieds
#4
#6
stock profile (1
st
generation style!)
#5
#8
stock profile (1
st
generation style!)
The great „Boost 0“ mode, for true stock racing with equal power can easily be recognised when the red LED
flashes in neutral position in normal operation to indicate that entire timing advancement is disabled!
AutoCell System:
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.
Internal-Temp-Check System:
the
SPX Zero
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 red (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!)
Brake:
superlinear feeling with a strong pushbrake and 6 fine steps for almost infinite adjustments of autobrake!
Team advise:
A good starting point for the brake setting on your radio is 80% for all classes. Make sure you do the
radio-setup with all settings on the radio on 100%!
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 at „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.
Pure Brushless Forward/Brake Design:
uncompromising and outstanding performance for top level com-
petition was the target for the
SPX Zero
! Therefore the LRP engineering team developed a pure forward/brake
brushless speed-control. There is no reverse function and no brushed operation.
Power Capacitor:
Never run without a power-capacitor! It offers increased punch and additional protection,
Multi-Protection System:
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)
• Powerprofile setting too high (higher value will heat up motor and speed-control excessively)
• Motor is too strong or motor is damaged.
SyMptoM
CauSE
REMEDy
Servo is working, no motor
function
Speedo plugged in incorrectly
Plug speedo to receiver as Ch.2
Wiring problem
Check wires and connectors
Sensor wire missing/defective
Install/replace sensor wire
Motor defective
Replace motor
Speedo defective
Send in product for repair
No servo and no motor
function
Speedo connected to receiver with wrong polarity
Connect speedo with correct polarity
Wiring problem
Check wires and connectors
Battery defective
Replace with different battery pack
Crystal, receiver or transmitter defective
Replace components one by one
Speedo defective
Send in product for repair
Motor stutters while
accelerating
Sensor wire defective
Replace sensor wire
Motor or sensor board in motor defective
Replace sensor board or motor
Radio interference
Change location of components
Power capacitor damaged
Replace power capacitor
Speedo defective
Send in product for repair
Motor runs in reverse when
accelerating forward on radio
Model with reversed gearbox!
Can not use a sensored brushless system!
Insufficient performance.
E.g. poor power, topspeed
or brake
Wrong Gear ratio
Adjust gear ratio
Transmitter settings changed after set-up
Repeat set-up procedure
Power Capacitor damaged
Replace Power Capacitor
Motor or sensor-board in motor defective
Replace sensor-board or motor
Speed-control defective
Send in product for repair
Speed-control switches off
frequently
Wrong setting in ACS (Mode.1)!
Change value of ACS (Mode.1) accordingly
Model used too often without cool-down periods
Let cool down after every run
Motor stronger than motorlimit or input voltage
too high
Use only motors and batteries which are within
the specifications of the speed-control
Stuck drivetrain or ball-bearing
Maintain model
Motor defective
Replace motor
Motor never stops, runs at
constant slow speed
Transmitter settings changed after set-up
Repeat set-up procedure
Humidity/water in speedo
Immediately unplug and dry speedo
Motor or sensor board in motor defective
Replace sensor board or motor
Radio interference
Receiver or antenna too close to power wires,
motor, battery or speedo. 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
All products from LRP electronic GmbH (hereinafter called “LRP”) are manufactured according to the highest quality
standards. LRP guarantees this product to be free from defects in materials or workmanship for 90 days (non-european
countris only) from the original date of purchase verified by sales receipt. This limited warranty doesn’t cover defects,
which are a result of misuse, improper maintenance, outside interference or mechanical damage.
„This applies among other things on:
• Cut off original power plug or not using reverse polarity protected plugs
• Receiver wire and/or switch wire damaged
• Mechanical damage of the case
• Humidity/Water inside the speed control
• Mechanical damage of electronical components/PCB
• Soldered on the PCB (except on solderpads)
• Connected speed-control with reversed polarity“
To eliminate all other possibilities or improper handling, first check all other components in your model and the trouble
shooting guide, if available, before you send in this product for repair. If products are sent in for repair, which do operate
perfectly, we have to charge a service fee according to our pricelist.
With sending in this product, the customer has to advise LRP if the product should be repaired in either case. If there
is neither a warranty nor guarantee claim, the inspection of the product and the repairs, if necessary, in either case
To eliminate all other possibilities or improper handling, first check all other components in your model and the
trouble shooting guide before you send in this product for repair. If products are sent in for repair, which do operate
perfectly, we have to charge a service fee according to our pricelist.
The
SPX Zero
features 4 modes which enable you to adjust it 100% to YOUR special requirements. The factory
settings are shown in grey colour.
MODE.1 (AutoCell System):
we recommend using value 2 for racing purposes with cells other then 2S/7.4V
LiPo, which disables the cut-off function completely.
MoDE LED
#1
#2
Green
LiPo/NiMH
Automatic
Disable
Cut-Off
Caution:
the most common reason for „unexpected“ shutdown is using the wrong value in this mode!
MODE.2 (Power Profiles):
this mode contains the new „Boost 0“ which is meant for true stock racing with
brushless motors and no added speed-control timing and which is indicated by the flashing red LED in normal
driving mode (when throttle is in neutral).
Additionally the
SPX Zero
incorporates further profiles so you can adjust the feel to your likes. Either you run On-
Road or OffRoad, on slippery or high-traction surfaces, we have incorporated a profile for you! Higher value means
more aggressive throttle response.
MODE.3 (Initial Brake):
Allows you to set a certain level of „hand-brake-effect“.
MODE.4 (Automatic Brake):
called auto- or drag-brake. This function allows you to set a slight braking action
which is applied in the neutral range.
• 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 red SET-LED
(* = value 1 | ** = 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, which will also store the settings!
Important:
do not turn the switch off before leaving Mode 4 (by one more press of MODE button) as otherwise your
recent changes won‘t be stored in the memory of the
SPX Zero
!
Table of settings, values and modes: see below (grey-shaded values show „works default settings“)
MoDE LED
#0
#1
#2
#3
#4
#5
Green/Red
(same time)
disabled Going from lowest to highest automatic brake setting
(value 1 = minimum / value 5 = maximum)
MoDE LED
#0
#1
#2
#3
#4
#5
Red
Boost 0
Mode
Going from mild to powerful profile
(value 1 = minimum / value 5 = maximum)
will be charged with a fee at the customers expense according to our price list. A proof of purchase including date of
purchase needs to be included. Otherwise, no warranty can be granted. For quick repair- and return service, add your
address and detailed description of the malfunction.
If LRP no longer manufactures a returned defective product and we are unable to service it, we shall provide you with
a product that has at least the same value from one of the successor series.
The specifications like weight, size and others should be seen as guide values. Due to ongoing technical improvements,
which are done in the interest of the product, LRP does not take any responsibility for the accuracy of these specs.
LRP-Distributor-Service:
• Package your product carefully and include sales receipt and detailed description of malfunction.
• Send parcel to your national LRP distributor.
• Distributor repairs or exchanges the product.
• Shipment back to you usually by COD (cash on delivery), but this is subject to your national LRP distributor‘s general
policy.
MoDE LED
#0
#1
#2
#3
#4
#5
Green/Red
(alternate)
disabled Going from lowest to highest automatic brake setting
(value 1 = minimum / value 5 = maximum)