Cytron SmartDriveDuo Smart Dual Channel 10A Motor Driver : Manual : Page 16

ROBOT . HEAD to TOE

Product User’s Manual – MDDS10

8.2 ANALOG/PWM INPUT MODE

In Analog/PWM input mode, the speed and direction of the motor is controlled by the analog

voltage or PWM signal. The valid input range is 0 – 5V and it’s very easy to control by using

a potentiometer. For example, the motor can be controlled by a joystick or foot pedal with

potentiometer.

NOTE: The Analog/PWM signal to stop the motor (2.5V if Sign-Magnitude mode is off,

0V otherwise) must be available when the SmartDriveDuo-10 is turned on. Else, the driver

will show Input Error until the correct signal is available.

Analog input mode is selected by setting SW1 to 0 (Down) and SW2 to 1 (Up). PWM input

mode is selected by setting SW1 to 1 (Up) and SW2 to 0 (Down). SW3 – SW6 can be

configured depending on the requirement of the user.

Input Mode

SW1:SW2

01

10

Analog Input Mode – The input is analog signal. The filter

capacitor is not connected and the input signal is not filtered.

SW1 is for Input 1 while SW2 is for Input 2.

PWM Input Mode – The input is PWM signal. The filter

capacitor is connected and the input signal is low pass filtered to

be an analog signal. SW1 is for Input 1 while SW2 is for Input 2.

SW2 must be set to 0 if Sign-Magnitude mode is turned on.

Single/Mix Mode

SW3:SW4

00

01

10

11

Mixed – The motor speed is controlled by channel RC1 and

direction is controlled by channel RC2. Recommended this mode

if controlled using Breakout board with Joystick soldered.

Independent Right – Only motor Right will active, motor Left

will inactive. Motor Right is controlled by channel RC2.

Independent Left – Only motor Left will active, motor Right

will inactive. Motor Right is controlled by channel RC1.

Independent Both - Both motor is active and can be controlled

individually through channel RC1 and RC2. Recommended this

mode if controlled using Microcontroller.

Exponential Mode

SW5

0

1

Off – The speed is linear with the input signal. This is for low to

medium speed motor.

On –The response to input is exponential and thus soften the

control around the center zero speed point. This is suitable for

high speed and very sensitive motor.

Sign-Magnitude

Mode

SW6

0

1

Locked Anti-Phase – Motor stops when the input signal is 2.5V.

Motor moves in one direction when the input is < 2.5V and in

another direction when the input is > 2.5V. Recommended this

mode if controlled using Breakout board with Joystick soldered.

Signed Magnitude – AN1 and AN2 controls the speed of the

motor. Motor stops when the input is 0V and run at full speed