Hi Erac,
The Servo library that comes with Arduino should drive that controller. The document linked in your post doesn't explicitly say, but values written to the servo library should increase or decrease motor speed as the values deviate from 90.
You can test it with the knob example sketch for the servo library. Connect the motor as per the information in the doc you linked. Connect the SIG line to Arduino pin 9 and the Ground line to arduino Gnd. If you connect a variable resistor (There is an online tutorial for this if you need help) you should be able to adjust the speed by adjusting the resistor.
If you add a serial.print statement in the sketch to display the value being written to the servo you can confirm the association between the values and motor speed.
Have fun!