slotcar racing controller Technical Information Version 1.0
1. Main Features
§? Non contact trigger.
§? Minimal maintenance.
§? Microcontroller-based PWM control.
§? New braking behavior and high acceleration.
§? Adjustable brake sensitivity and choke.
§? Suitable for all motors within the current rating.
§? No relevant heat.
§? Minimal loss of energy.
§? Shielded against most failure situations.
§? For positive or negative Tracks.
§? Light weight.
§? Fulfills the EU RequirementsWEEE /CE
The ACD pro is a microcontroller based slot car racing controller. The current
flow to the car is controlled as a Pulse Width Modulated current (PWM). The ACD
pro uses no mechanical switching parts in the main current path. The peak
current can be handled without wasting a lot of energy. As a result: The ACD
pro needs no heat sink and is very light.
The ACD pro replaces any resistance based controller and is suitable for nearly
any motor within the current rating.
This state of the art technique is very reliable and produces excellent and very
well controlled acceleration and braking of the slot car.
The contact less trigger makes the ACD pro very reliable and maintenance free.
This feature is unique on thecar racing controller market.
The main parameter can be adjusted via the brake, sensitivity and the choke
potentiometer. The racer gains better and effective control of the slot car. The
ACD pro has a balanced protection system to protect against over current and
false connection! Please read the precautions at the end of this Manual.
3. Technical Data
Working voltage: ACD pro3 (7 to 27V) ACD pro5 & ACD pro10 (7 to 22V)
Cont. Current: 3A 5A 10A
Max. Pulse current: 8A 12A 30A **
Fuses: ACD pro 3 / internal electronic fuse.
ACD pro 5/10 FKS fuse
Display: green LED indicating that the current source is
red LED flashes if failure detected.
Connector: German version for positive tracks
red + wire (Power)corresponds to white in the US
black ? wire (Break) corresponds to red in the US
yellow Motor (Wiper) corresponds to black in the US
Knops: break (Red cap)
chock (without a cap)
sensitivity (Gray cap)
Switches: switch for positive or negative wiring
switch to change the trigger characteristic
** This current is the maximum starting current of the motor. Please do not
exceed this value. If you do so, the ACD pro will switch off or will reduce the
output current for a short period.
3.1. Wiring Plan
3.2. Polarity Switch
Most versions of the ACD pro have a polarity switch. This switch will be found
near the LEDs. For changing the polarity the ACD pro must be switched off first.
Switch the polarity to the desired position then reconnect the ACD pro according
to the new polarity.
Switch to the LED direction --> positive (default)
Switch to the trigger direction --> negative
If the polarity switch will be changed while the ACD pro is powered on then
nothing will happen. The new polarity will take place after a new power on of the
If the ACD pro is connected to a track with the wrong polarity then the car may
start directly with full speed immediately after connecting the ACD pro .
If the ACD pro is switched to negative polarity, the red and the black wires must
be exchanged. This means that the red wire must be connected to the black
connector of the track and the black wire must be connected to the red
connector of the track.
The colored wires of the ACD pro are coded for positive polarity by default.
To avoid damages please always be sure to connect the ACD pro according to
the correct polarity.
3.3. Trigger Characteristic Switch
This switch can be found behind the trigger it self. There are 2 trigger
characteristics -progressive and smooth. The racer can choose the one he
prefers. The default value is the progressive position.
Switch to upper direction --> progressive
Switch to the down direction --> smooth
3.4. Failure Situations and LED Display
In the most false connecting situations of the ACD pro, one of the fuses will
blow. This is because the ACD pro has a very low internal resistance. (Due to
minimize the internal losses)
If the + and ? wires are exchanged, the ACD pro will appear to the power
supply as a short circuit. If the power supply is strong, one of the fuses will
immediately blow. If the power supply has a current limiting characteristic within
the fuse rating then the current through the ACD pro will be the limited current.
This situation should be short and not longer than a few seconds. Otherwise the
ACD pro may be damaged. In some cases the power supply will interrupt the
excessive current.The green LED displays that the microcontroller is running. In some cases, this
is true even if the ACD pro is not completely connected. This LED indicates also
the over voltage mode.
The red LED is normally off. This LED will flash if the microcontroller detects a
failure. In this case the output current will be switched off immediately.
In some cases the flashing will start immediately while connecting the ACD pro.
This indicates a false connection.
If the green LED will go off whilethe red LED is flashing then the ACD pro is
not completely connected or the working voltage is too high. The ACD pro goes
to the over voltage protection mode.
If the red LED flashes, please release the trigger to the stop position. Otherwise
theflashing will stay as long as the trigger is not released.
Use adapter plugs with fixed polarity instead of the separate wires. This will
prevent false connections. For flexibility the ACD pro is delivered with separate
Never use more rated fuses than the technical data for your ACD pro model.
The green LED will go on even if the ACD pro is not completely connected. This
LED is not the final indicator for the correct connection. This is a display for the
correct microcontroller operation.
If the ACD pro detects a failure the red LED will flash. The output current will be
switched off. Please release the trigger to reset the failure display.
Please connect the ACD pro always to rails with the correct polarity. If your ACD
pro has a polarity switch, please be sure to switch the ACD pro to the correct
polarity prior connecting it to the rail.
Never use the ACD pro without connecting the brake wire. If you do so the ACD
pro will detects an internal over voltage situation (green LED off/red LED
The higher acceleration and deceleration values will cause a better racing
performance. As a result the slot car needs more service to be able to give out
Never connectcondenser for absorbing the motor distortion near the ACD pro
connection. These condensers should be connected far away within the rail or
within the slot car.
slotcar racing controller
Technical Information Version 1.0
5. Legal Warnings
This Product is not for use by children under 12 years old. All products
manufactured by IBY are electric-powered high-speed controllers, intended for
use on certain home-racing sets as clearly defined on catalogue or at clubs or
professional raceways by competent hobbyists.
Follow all recommendations stated on the website and any printed material
supplied by IBY with the product for best results. IBY, its agents, dealers and
personnel make no representations as of the actual performance of the product.
The use of any parts of any manufactured products by IBY may cause injury or
death, even if used as intended. Sharp edges on plastic or metal parts may
cause injury or death if such parts are swallowed, used as a weapon or if the
user is accidentally maimed by any and all such parts or involved in an
electrocution from support systems necessary to run this product.
The IBY, its agents and dealers, are in no case responsible in any way for any
damage, physical or mental, caused by the use of any part of its product, or the
use of any tool, implements, jigs, fixtures either sold or recommended by IBY, or
any other tool, jig, fixture devised by the user.
In case of dispute or claim, the resolution of such will be performed at the
expense of the claimant for both parties until a decision will be reached by the
sole jurisdiction of the German Court in Erkelenz, Germany, under its arbitration
The purchase of any product manufactured orsold by IBY, its agents and / or
employees implies full acceptance of the statements posted above.
5.1. Please note
The ACD pro family is built according to the EU regulations. Please do
not dispose of the ACD pro via normal waste. Please send the ACD
pro to us or make sure to dispose of it according to the regulation in
slotcar racing controller
Technical Information Version 1.0
Do not pull the connectors of the ACD pro via the cables. This willdamage the
cables and may cause damage to the ACD pro. The cables can not withstand
In general the manufacturer will not guarantee against any damage to the cable.
The ACD pro is a maintenance free device. Please do not open the case. If you
do so, then you will loose the guarantee.