LRP electronic Quantum Reverse 2 Series Manuale utente

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

INFO@LRP-ELECTRONIC.DE WWW.LRP-ELECTRONIC.DE

RA00123_QR2_E_071207fv.indd 1RA00123_QR2_E_071207fv.indd 1 07.12.2007 10:08:5507.12.2007 10:08:55

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

RA00123_QR2_E_071207fv.indd 2RA00123_QR2_E_071207fv.indd 2 07.12.2007 10:08:5607.12.2007 10:08:56

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