4qd SCC-001 User manual

SCC-001 V1.1 07/19 Page 1 ©4QD Ltd www.4qd.co.uk
Instruction Manual
SCC-001
Contents
Section Page Section Page
1. Description................................. 1
2. Connections............................... 2
3. Adjustment................................. 2
4. Calibration.................................. 3
5. Auto-off.......................................3
6. Output .........................................3
7. Battery eliminator circuit...........3
1. Description
The SCC-001 is a sound card control module that is designed to go between 4QD
motor controllers and those sound cards that require a standard radio control input,
such as the ESS-Dual from Sense Hobbies.

SCC-001 V1.1 07/19 Page 2 ©4QD Ltd www.4qd.co.uk
2. Connections
The SCC-001 was designed to work with the DNO series of controllers and can be
plugged directly into the expansion port of the DNO. The pin connections are shown
below.
The SCC-001 can also work with other controllers by feeding a speed related positive
voltage into the speed terminal, and then adjusting the pot as required.
The SCC-001 has an upper voltage limit of 30V.
3. Adjustment
For use with the DNO the pot should be adjusted fully clockwise. This gives a full
speed output for an input voltage of ~8V. For higher input voltages the pot should
be adjusted so that the maximum output signal corresponds to the vehicle top
speed.

SCC-001 V1.1 07/19 Page 3 ©4QD Ltd www.4qd.co.uk
4. Calibration
It may be necessary to calibrate the sound card to match its zero speed point to the
zero speed output of the SCC-001.
The process below describes how to do this for the ESS-Dual, it may differ for other
sound cards.
1. Switch on the DNO and the ESS-Dual.
2. Press and hold the + on the ESS-Dual until it gives a long beep to denote it
has entered calibration mode.
3. Set the DNO to zero speed, press the + again to store the zero point.
4. Set the DNO to full ahead, give it time to reach full speed, now press +
again to store the full ahead point.
5. Set the DNO to zero speed, give it time to stop, now press + again to store
the reverse point. The ESS-Dual should now give another long beep and
enter operating mode.
5. Auto-off
The ESS-Dual has an auto off function that switches the sound off after a preset time.
We have found it useful to increase that time from the standard 3 seconds to 60
seconds. To do this you will need to download and install the RCPlus software from
www.sensehobby.com. After this is installed, download the required sound file and
install it, then click the settings icon and select the “engine” tab. You can now change
the “idle delay” to 60, save the changes, go back to the “audio” tab and click “change”
then “install” to write the new value to the ESS-Dual.
6. Output
The SCC-001 gives an output that corresponds to the standard radio control pulse
width protocol. The truth table is shown below.
Stick
position
Controller
output
SCC-001
output
Sound card
response
Forward
Forward
2.0 mS
Run
Centre
Off
1.5 mS
Stop
Back
Reverse
2.0 mS
Run
7. Battery eliminator circuit
The SCC-001 provides a 5V supply on the RC output port which can support currents
up to 100mA. This is enough to power most RC receivers, but any additional servos
should be selected with this current limit in mind.