Getting Started with the Speed controller
Attention, be careful!
Place the model vehicle so the drive wheels do not make contact with the ground or other objects.
Do not touch the drive mechanism, do not block it! Risk of injury!
If the trimming was adjusted on the transmitter, after switching on the speed controller can directly
determine the starting of the motor!
• Firstly, turn off (switch position "OFF") the speed controller's on/off switch. Then check the setting of jump
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ers, and correct it if necessary.
• Turn on the transmitter and check afterwards the transmitter's rechargeable battery or battery status.
Bring the trimming for the steering and the driving/braking function in the central position and check if the
operating lever for the drive/brake function is in the neutral position.
• Insert the rechargeable drive battery in the vehicle and connect it to the speed controller.
Attention!
You should pay attention to the correct polarity of the speed controller's connection cable: Red =
Plus (+) and Black = Minus (-). If incorrectly connected, the speed controller and the rechargeable
drive battery can be destroyed! Danger of explosion/burns!
• Now, switch on the speed controller (switch position "ON").
• The speed controller will perform a calibration; this can take about 3 seconds (during this time, do not
move the gas/brake levers of the transmitter; let them in the centre/neutral position!). The motor generates
different types of beeps (these will be produced by the actuation of the motor by the speed controller). The
speed controller is now ready for use.
1 short beep = 5 - 9 cell NiMH/NiCd rechargeable drive battery
2 short beeps = 2 cell LiPo rechargeable drive battery
3 short beeps = 3 cell LiPo rechargeable drive battery
1 longer beep = self-test and calibration successfully; the speed controller is ready for operation
If the speed controller does not recognise the transmitter's neutral position, then no function is
possible! This can happen when the trimming is adjusted on the transmitter or when the driving/
braking function's operating lever is not in the centre/neutral position.
Speed controller's Function Checking
When the driving/braking function's operating lever on the transmitter is in the centre position (neutral posi
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tion), the model's wheels must not rotate.
If you move the driving/braking function's operating lever in the forward driving direction (move the handle
forward), the model's driven wheels must rotate in the forward driving direction.
Then move the operating lever from the forward driving position in backward driving direction, without any
break (push away the transmitter's handle). Now, the model's driven wheels must be braked.
To switch to the backward driving, leave the operating lever to spring back in the centre position (neutral) and
move it after a short pause (about 1 second) in the backward driving direction (push away the handle). Now,
the model's driven wheels must rotate in backward driving direction.
If the wheels rotate opposite to the function described above, turn off the speed controller and set
the jumper "Reverse" to the position "Enable".
Alternatively, the two motor cables and the reverse setting of the transmitter can be interchanged.
In each case, make sure that the setting of the jumper, of the motor's connection or of the driving
function's reverse position on the transmitter is such that the brake function is correctly used (only
when changing from forward to reverse driving).
The braking function may only be used if the transmitter's throttle/brake lever is moved without
any break from forward to backward driving (in this case, the vehicle is not running backward, but
the brake is activated).
In addition, the output power is reduced to 50% when driving backward.
The speed controller's red LED is off in the neutral position. During forward/backward driving the LED flash
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es; by full throttle, the LED lights up permanently.
Ending the Operation
• Bring the throttle/brake lever to the neutral position and let the vehicle roll out (if necessary, correct accord
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ingly the transmitter's trimming control, so that the motor stops).
• Turn off the speed controller.
• Completely disconnect the rechargeable drive battery from the speed controller.
• Now you may turn off the transmitter.
Overtemperature Protection
If the speed controller is too hot, the motor power is reduced, respectively the motor is turned off. In this
case, the red LED flashes. If the speed controllers cools under about +80 °C, it is again ready to be used.
Fail-Safe Function
The speed controller switches off the motor for safety reasons, if there comes no valid signal from the
receiver.
Undervoltage Detection
Below a specific voltage of the rechargeable battery, the motor power is reduced, respectively the motor is
turned off. This protects the rechargeable drive battery against a harmful deep discharge.
Jumper in the "NiMH"position (rechargeable drive battery with 5 - 9 cell)
The speed controller reduces the output power to 50% if it is measured a rechargeable battery voltage of
4.5 V. Below a rechargeable battery voltage of 4.0 V, the motor is turned off.
Jumper in the "Lipo"position (rechargeable drive battery with 2 cell)
The speed controller reduces the output power to 50% if it is measured a rechargeable battery voltage of
6.5 V. Below a rechargeable battery voltage of 6.0 V, the motor is turned off.
Jumper in the "Lipo"position (rechargeable drive battery with 3 cell)
The speed controller reduces the output power to 50% if it is measured a rechargeable battery voltage of
9.75 V. Below a rechargeable battery voltage of 9.0 V, the motor is turned off.
Maintenance and Care
The speed controller does not require any maintenance and you should never disassemble it.
Before cleaning, the speed controller must be turned off and the rechargeable drive battery must be com
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pletely disconnected from the speed controller. If you have previously driven the vehicle, allow firstly the
speed controller to cool off completely.
Clean the speed controller, for example, with a long-haired, clean brush and a vacuum cleaner. Compressed
air aerosols can also be helpful.
Disposal
a) General
The product must not be disposed of with the household waste.
Dispose of the unserviceable product in accordance with the relevant statutory regulations.
b) Batteries and Rechargeable Batteries
As the end user, you are required by law (Battery Regulation) to return used batteries. Do not dispose of
used batteries in the household waste!
Batteries/rechargeable batteries containing hazardous substances are labelled with these sym
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bols to indicate that the disposal of them in the household waste is forbidden. The symbols of
the critical heavy metals are: Cd=Cadmium, Hg=Mercury, Pb=Lead (name written on the battery/
rechargeable battery, e.g., under the rubbish bin symbol on the left).
You can return used batteries/accumulators free of charge to any collection facility in your local authority, to
our stores or to any other store where batteries/accumulators are sold.
You thereby fulfil your statutory obligations and contribute to the protection of the environment.
Technical Data
Suitable for vehicle scale ...............................1:10
Number of cells NiMH/NiCd ...........................5 - 9
Number of cells LiPo .....................................2 - 3
Functions .......................................................Proportional forward, brake, proportional backward (by back
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ward driving is only available 50% of the output power)
BEC output ....................................................6 V/DC, 2 A
Constant current ............................................Forward driving 40 A, backward driving 20 A
Maximum current (< 1 s) ...............................Forward driving 180 A, backward driving 90 A
Pulse frequency .............................................1 kHz
Suitable motor type ........................................540 or 550 (brush motor)
Motor limit ......................................................>=12 turns (LiPo = 2 cell or NiMH = 6 cell)
>=18 Turns (LiPo = 3 Cell or NiMH = 9 Cell)
Dimensions ....................................................46.5 x 34 x 28.5 mm (L x W x H)
Weight ...........................................................approx. 70 g
This is a publication by Conrad Electronic SE, Klaus-Conrad-Str. 1, D-92240 Hirschau (www.conrad.com).
All rights including translation reserved. Reproduction by any method, e.g. photocopy, microfilming, or the capture in
electronic data processing systems require the prior written approval by the editor. Reprinting, also in part, is prohibited.
This publication represent the technical status at the time of printing.
© Copyright 2016 by Conrad Electronic SE.
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