LRP electronic Quantum Reverse 2 Series User manual

!
Dear Customer,
thank you for your trust in this LRP product. By purchasing a LRP Quantum Reverse 2 digital series speed-con-
trol you have chosen a high-performance product full of new design features, such as:
WARNING NOTES
SPECIFICATION
• Affix the speed-control using the supplied doublesided adhesive tape.
• Make sure there are enough cooling slits in the body. This will increase the performance and life of all the
electronic components.
• Position the speed-control where it is protected in the event of a crash.
• Install the speed-control so that you have easy access to the plugs and the SET-button.
• Make sure there is enough clearance (about 3cm) between the speed-control, power cable and antenna
receiver. Avoid any direct contact between power components, the receiver or the antenna. 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. It is better to cut it down to a
length of about 35 cm. See also the instructions supplied with your radio control system.
INSTALLATION TIPS
CONNECTIONS
POWER WIRES:
The QR2 series comes pre-wired using common „Tamiya/JST-
style“ battery and motor connectors. It‘s simply „plug & play“
when you intend using a designated motor!
The unique splitted solder-tabs allow easy and convenient re-
placement of the power wires, if you plan using a „hardwired“
wire setup with different connectors (use polarised connecting
systems only!). Nevertheless, some soldering skills are re-
quired. Talk to your local hobbyshop if you are concerned about
replacing the wires yourself.
RECEIVER CONNECTING WIRE:
This LRP speed-control is equipped with a LRP Multicon receiver
wire. As supplied, it will easily fit in all ordinary receivers.
Motors with no capacitors or not enough capacitors may interfere with the speed control. To avoid this, solder
the supplied capacitors to your motor (see picture).
INSTALLATION
• Solder the capacitors to the motor.
• Attach the speed-control to the model.
• Connect the speed-control to the receiver (position: channel 2).
• (QR2 Bullet ONLY!) > Connect the external fet lead, if you are using such a servo.
• Connect the speed-control to the motor. Yellow wire PLUS, Blue wire MINUS.
• Then check all the connections before connectiong the speed-control to a battery.
CAUTION: if a connection is incorrect, it will destroy the speed-control.
• The speed-control is now ready to be set-up (see back page).
• Ultra High Performance using SMD Mosfet‘s
• Small in size, super lightweight
• Real-Time-Braking
• Extended runtime
• Racing mode, reverse switch off
• Plug-in-and-Drive.
* Transistors rating at 25°C junction temperature. Specifications subject to change without notice
** @ 6 cells (7,2V) with single motor.
MOTOR SUPPRESSION
CAUTION: Never use schottky dio-
des in conjunction with a forward/
reverse speed-control such as the
QR2 series speed-controls.
Please read and understand these instructions completely before you use this product!
With operating this product, you accept the LRP warranty terms..
ORDER NO.:
84110 FORWARD + REVERSE
OVER 14 TURNS
RA00123
USER GUIDE
ORDER NO.:
84210
ORDER NO.:
84310
FORWARD + REVERSE
OVER 11 TURNS
FORWARD + REVERSE
OVER 7 TURNS
SPECIAL FEATURES
RACING MODE, switch off reverse
You have the option of switching off reverse for racing. The speed-control then uses the full reverse range as
a brake only.
REVERSE OPERATION
An additional protective function is the 8sec time limit in reverse. If you run your model for longer than 8sec,
the speed-control switches to neutral. Move the throttle stick briefly to neutral, and you can then use reverse
for a further 8sec.
Extensive testing has shown that this limit never gets reached in normal use.
REAL-TIME-BRAKING
In contrast to conventional forward/reverse speed-controls, the QR2 series has a real-time-brake. It works
fully proportional in operation until your vehicle comes to a complete stop. The unit then switches to reverse
without any annoying delays.
MULTI-PROTECTION-SYSTEM, 3-way protection
This unique monitoring software is the perfect protection for the QR2 series speed-controls against short-cir-
cuits (motor), overload and overheating. If your speed-control is ever faced with overload, the motor function
is switched off for protection and the LED will flash red/green to indicate the overload, although the steering
function is maintained. Wait a few minutes to allow the speed-control to cool down.
If the speed-control switches off frequently, either the motor used is too strong, the motor pinion is too big or
you are using full brake too often.
IMPORTANT:
The supplied heatsink improves and safeguards the performance
capacity of your QR2 speed-control when used close to it‘s spe-
cified limits.
Use only the genuine QR2 series heatsink (#81123) and attach
it using the supplied heat-transfering double-sided tape (thin/
clear). Do not use any other tape to attach the heatsink!
• IMPORTANT: Never leave your RC model unsupervised when the
battery is plugged in. If a defect occurs, it could set fire to the model
or the surroundings.
• Never wrap your speed-control in plastic film or metal foil. In fact,
make sure it gets enough fresh air.
• Avoid soldering longer then 5sec per soldering joint when replacing
the power wires to prevent possible damage to the speed-control
due to overheating of the components!
IMPORTANT: Pay close attention to the following points, as they will
destroy the speed-control and void your warranty:
• Never solder a Schottky diode to the motor when you are using a
Quantum Reverse 2 speed-control. A Schottky diode will destroy
any forward/reverse speed-control.
• Never allow the speed-control or other electronic components to
come in contact with water. Do not operate the speed-control in
the rain. If you ever have to operate in the rain, protect your speed-
control properly to avoid that water reaches the speedo.
• Never cut off the original power plug.
• If the speed-control is connected to the motor, never run the motor
directly with a separate battery or run-in device.
• Never connect the speed-control incorrectly or with reversed pola-
rity.
• All wires and connections have to be well insulated. Short-circuits
will destroy the speed-control. Pay special attention to the receiver-
and switch wires.
• Never change the polarity of the receiver connector.
• Never open the speed control and never solder on the PCB (except on
external solder-tabs).
• If you use more than 6 cells in the drive battery, the motor limit rises
by 2 turns for each additional cell.
Product QR2 Super QR2 Pro QR2 Bullet
Order.No. 84110 84210 84310
Forward/Brake/Reverse yes yes yes
Case Size 26.0x26.0x15.7mm 26.0x26.0x15.7mm 26.0x26.0x15.7mm
Weight (excl.wires) 16.5g 17.0g 18.0g
Voltage Input 4-7 cells (4.8-8.4V) 4-7 cells (4.8-8.4V) 4-7 cells (4.8-8.4V)
Typical Voltage Drop@20A* 0.075V 0.060V 0.050V
Rated Current* 50A 65A 75A
Rec. Motor Limit** Over 14 Turns Over 11 Turns Over 7 Turns
B.E.C. 5.0V 5.0V 5.0V
PWM Frequency yes yes yes
Multi-Protection-System yes yes yes
Connectors Standard Tamiya Style Standard Tamiya Style Standard Tamiya Style
Setup Procedure Single button Single button Single button
Switching OFF • Switch speed-control Off
Reverse • Press and hold the SET-button
• Switch speed-control On while SET-button is pressed
Switching ON • Switch speed-control Off
Reverse • Press and hold the SET-button
• Switch speed-control On while SET-button is pressed
Receiver Lead
On/Off Switch
Motor Connectors
(yellow = plus)
(blue = minus)
Tamiya Connector
(Battery)
Fet-Servo lead
(blue), only for
QR2 Bullet
LRP electronic GmbH
Wilhelm-Enssle-Str. 132-134, 73630 Remshalden, Germany
Tel.: int+49-7181-4098-0, Fax: int+49-7181-4098-30
[e-mail] WWW.LRP-ELECTRONIC.DE
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REPAIR PROCEDURES / LIMITED WARRANTY
REPAIR PROCEDURES / LIMITED WARRANTY
All products from LRP electronic (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 from
the original date of purchase verified by sales receipt. This limited warranty doesn’t cover defects, which are a
result of normal wear, misuse or improper maintenance. 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 external solder-tabs)
• Connected speed-control with reversed polarity
With Limited Lifetime Warranty products, the warranty terms on the Limited Lifetime Warranty card do also
apply.
To eliminate all other possibilities or improper handling, first check all other components and the trouble shoo-
ting guide before you send in this product for repair or warranty. Products sent in for repair, that operate perfect
have to be charged with a service fee.
By sending in this pr oduc t, you assign LRP to repair t he product, if it is no war ranty or Limited Lifetime Warranty
case. The original sales receipt 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.
Our limited warranty liability shall be limited to repairing the unit to our original specifications. In no case shall
our liability exceed the original cost of this unit. Because we don’t have control over the installation or use of
this product, we can‘t accept any liability for any damages resulting from using this product. By installing or
operating this product, the user accepts all resulting liability.
The specifications like weight, size and others should be seen as guide values. Due to ongoing technical impro-
vements, 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.
TROUBLE-SHOOTING GUIDE
In setup mode, the QR2 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.
Throttle travel High ATV, EPA maximum
Brake travel Low ATV, EPA, ATL maximum
Throttle exponential EXP, EXPO start with 0
Neutral-/throttle-trim SUB Trim centre
Servo Reverse Gas 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.
• This completes the setup procedure and your QR2 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, disconnect the drive battery and then switch off the transmitter. At the start of each
run, switch on the transmitter first, then connect the drive battery.
FUNCTION STATUS LED
Neutral green/red
Forward Partial Throttle bright green
Forward Full Throttle off
Brake Partial Brake bright red
Brake Full brake off
Reverse Partial Reverse dull to bright red
Reverse Full Reverse off
Overload Protection Active flashes green/red
CHECKING THE FUNCTIONS:
If you run through the following functions with the throttle stick, you can check on the LED‘s that everything
is setup correctly.
• 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.
• The SET LED flashes green/red and indicates that you entered setup mode.
• Leave the throttle stick at neutral and press the SET button once.
-> Neutral setting is now stored, the LED flashes green and the motor beeps.
• Hold the transmitter stick at full throttle and press the SET button once.
-> The full-throttle setting is now stored, the LED flashes red and the motor stops beeping.
• Hold the transmitter stick at full reverse and press the SET button once.
-> The reverse setting is now stored. The LED is off.
SYMPTOM CAUSE REMEDY
Servo is working, no motor function. Set-Up problem Repeat set-up procedure
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 moto
Motor brushes jammed. Check whether 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.
Throttle stick polarity at transmitter
changed while driving
Repeat set-up procedure
Motor connected incorrectly Connect motor correctly
Insufficient performance.
E.g. poor brake power, reverse
power, topspeed or acceleration..
Motor pinion or gear ratio too long. Use smaller motor pinion
Transmitter settings were changed
after set-up
Repeat set-up procedure
Motor worn out Maintain motor
Motor defective Replace motor
Speed-control defective. Send in product for repair
Speed-control overheats or switches
off frequently.
No heatsink installed Install heatsink
Reduced cooling efficiency Cut cooling holes in body
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 or gear ratio too big Use smaller motor pinion
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 were 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 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
RADIO / SPEED-CONTROL SET-UP
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