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Operating Instructions
Version 12/07
Electronic Cruise Control „Speed"
Item-No. 20 52 22
Intended Use
The product is connected to a radio remote control receiver and serves as a continuous speed controller for
electric motors (forwards/backwards) in a model boat, see the „Technical Details" chapter.
This product complies with all current National and European requirements. All company names and pro-
duct designations contained herein are trademarks of their respective owners. All rights reserved.
Product contents
• Cruise Control
• Plastic-pen to operate the setup button, condensor for motor radio interference suppression, double-sided
adhesive tape, cable tie
• Operating Manual
Safety Instructions
The guarantee is rendered invalid when damage is incurred as a result of non-compliance
with the operating instructions! We do not assume any liability for any damage arising as
a consequence!
We shall not accept liability for damage to property or personal injury caused by incorrect
handling or non-compliance with the safety instructions! The warranty is voided in these
cases.
• The unauthorized conversion and/or modification of the product is inadmissible because of safety and
approval reasons (CE). Never cut the cable/plug from the cruise control, this will cause the warranty to be
void.
• The product is not a toy and should be kept out of the reach of children!
• The cruise control comes with a special cooling element with a connection for a water cooling system for the
operation of a model boat, however the cruise control itself must not become damp or wet!
• Do not short-circuit the connector cable, this will destroy the cruise control. The same is true for overload
(e.g. through the use of an inappropriate motor) or by incorrect polarity. Never attach a Schottky diode. Only
use electric motors with radio interference shielding.
• Always disconnect the batteries from the cruise control when the cruise control is not needed. If the cruise
control is not used for short periods, it can be deactivated via the On/Off switch.
• Always switch on the transmitter before connecting the cruise control with batteries and switching it on!
• Before the transmitter is switched off, the cruise control must be switched off and, if necessary, disconnected
from the batteries.
• The cruise control is designed for NiMH/NiCd-batteries. It is also principally suitable for LiPo-battery packs, but
does not include a safety shutdown for low votage. In the event that a LiPo-battery pack is operated with the
cruise control, the LiPo-battery pack will be damaged by a total discharge!
Pay attention to the changing cell number while using one or two batteries, see technical details
in the „starting up the cruise control" section.
• The cooling system can become very hot during operation, danger of burning!
• Handle the product with care. It can be damaged through impact, blows, or by being dropped, even from a
low height.
• Do not carelessly leave the packaging material lying around since this may become a dangerous toy for chil-
dren.
Mounting
Install the control cruise with double-sided scotch tape (or with a Velcro), as far from the receiver as possible.
The power cable to the engine and to the battery as well as the thin control cables must be installed far from
the aerial cable; also (the aerial cable should run directly from the receiver to the aerial fitting). Otherwise this
can lead to malfunction of the model or a shorter radio range.
Attach the cooling element to the switch control; operation of the cruise control without a cooling element is
not permitted. Make sure that the cruise control is sufficiently cooled. For operation in the model boat, the coo-
ling element is equipped with two connectors for water cooling. It is thereby irrelevant which connector is used
for the incoming cold water. The cruise control must not be used without the water cooling.
The water hoses connected to the water cooling element must not be bent or squeezed! Secure these in your
model boat with the appropriate holders.
The cables must not get into moving parts, secure them with cable fasteners. The radiators must be exposed
and must not be covered.
Connection
• Connect the thick motor connector cable to the motor (connect the black cable with the black motor cable;
if necessary exchange them later, if the direction of rotation is not right). See the illustration in the next sec-
tion „starting up the vehicle", where the red/black cable is to be used to connect both motors.
As a rule, the motors in a model boat must counter-rotate, otherwise the boat's straight running stability is
not really possible.
o
In case the motor is not interference-suppressed, use the enclosed radio interference suppression capaci-
tor (solder one between the two motor connectors and solder one from the motor connector to the motor
case, respectively).
• Afterwards, connect the three-terminal plug to your receiver. Make absolutely sure you have the correct
°
receiver configuration (see operation instructions for receiver as well as the inscription on the receiver).
Yellow/white/orange connecting line:
Control signal
Red cable:
Operating voltage
Brown/black cable:
Weight
As the cruise control contains a BEC, a receiver battery or rechargeable battery must not be used! The bat-
tery supplies the receiver directly with power via the cruise control.
• Install the On/Off switch in the vehicle; place the switch in the "OFF" position.
Running the vehicle
• Switch on your transmitter (check battery condition!). Place the trim regulator in the centre position; place
the throttle lever in the neutral position.
• The switch of the control cruise must be set to the „OFF" position.
• Insert one or two battery packs into the vehicle and connect it to the cruise control (see following diagrams).
Warning, Careful!
Place the vehicle in a way that the drive mechanism (e.g. the model boat's screws) have no contact
with the floor or other objects. Do not touch the drive mechanism, do not block it! Risk of injury!
Once the control cruise is switched on, the drive can be started immediately via the position of the
throttle lever or the trim regulator on the transmitter!
a) Operation with two battery packs (6-7 cells, 7.2V to 8.4V):
b) Operation with one battery pack (6-10 cells, 7.2V to 12V):
When operating with only one battery pack, a bridge can be applied to the second battery con-
nection, see picture above. Always connect the battery pack to Connection 1. Otherwise, the BEC
will not work since it only draws power from Battery Connection 1..
• Move the throttle and the corresponding trimmer to the neutral-position on the remote control.
• Set the switch of the control cruise to the „ON" position.
• Push the setup button for about two seconds, until the setup-LED blinks. The neutral position has been
saved.
• Move the throttle to the position „full throttle forwards", and then in the position „full throttle backwards" and
finally back into the neutral position. The setup-LED goes out and the settings are saved (the settings remain
saved, even if the cruise control is disconnected from the battery.
• The cruise control is now ready for operation, you can steer the vehicle via remote control. Both the deflec-
tion and the neutral position are indicated by the LED going out.
Please note:
When changing between forwards and reverse, the throttle must be put briefly into the neutral position (ca.
2 seconds).
If the throttle is shifted directly from forwards to reverse, the cruise control's brake will be activated (the vehi-
cle will NOT go backwards!)
Choose mode of operation
The cruise control provides 3 modes of operation. The mode of operation can be switched when the setup-
button is pushed quickly (less than 1 second). Then, the LED blinks independently from the mode of opera-
tion 1x, 2x or 3x quickly.
• Mode 1:
Forwards, brake, reverse (LED blinks 1x)
• Mode 2:
Forwards, brake, 50% reverse (LED blinks 2x)
• Mode 3:
Forwards, brake (LED blinks 3x)
These settings remain saved in the cruise control when it is disconnected from the battery.
Ending operation
• First switch off the cruise control (switch into the „OFF" position).
• Then disconnect the batteries from the cruise control.
• Switch off the transmitter.
Disposal
Electric and electronic products do not belong in the household waste!
When the product is no longer usable, dispose of it in accordance with the applicable statutory
regulations.
Technical data
Cell number NiCd/NiMH: ............Operation of cruise control with 2 batteries: 6 -7 cells (7.2V bis 8.4V)
Operation of cruise control with 1 battery: 6-10 cells (7.2V to 12V)
Cell number LiPo: ........................Operation of cruise control with 2 batteries: 2 cells (7.4V)
Operation of cruise control with 1 battery: 2-3 cells (7.4V to 11.1V)
No integrated LiPo low voltage protector!
BEC: ............................................5V, 1A
Steady current (forwards): ..........5 Minutes/25A, 30 Seconds/25A, 1 Second/80A
Steady current (reverse): ............5 Minutes/12.5A, 30 Seconds/12.5A, 1 Second/40A
Motor limit: ..................................19 Turns
Battery connection: ......................Tamiya-compatible
Receiver connection: ..................Futaba or JR
Pulse Frequency: ........................500-1000Hz
Functions: ....................................Proportional forwards, break, proportional reverse
Weight: ........................................Ca. 109g incl. Cable
Dimensions (LxWxH): ..................Ca. 56 x 57 x 32mm (with cooling element)
These operating instructions are published by Conrad Electronic SE, Klaus-Conrad-Straße 1,
D-92240 Hirschau/Germany.
The operating instructions reflect the current technical specifications at time of print. We reserve
the right to change the technical or physical specifications.
© Copyright 2007 by Conrad Electronic SE. Printed in Germany.
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