Datasheet

Page 2 of 3 6/30/2010
Hardware Installation
Double H driver module can drive two DC motors at the same time.
Port A is completely symmetrical as port B on the board.
DC motor input port A has three pins, I1, I2 and EA. I1 and I2 are digital ports which are used to
control the direction of motor, EA is connecting with PWM port of control board to control the
speed of motor.
If I1=1and I2=0, the motor rotates clockwise.
If I1=0 and I2=1, it rotates anticlockwise.
If I1=I2，it stops rotating.
EA
I1
I2
Motor A status
》0
0
1
Clockwise rotation
》0
1
0
Anticlockwise rotation
Normally we do not need to connect wire to supply logic power.
Only if the motor power supply is +5V～+7V or +18V～+46V we have to take off the logic power
jumper and connect 5v to supply logic power.
We can control 4-wire stepping Motor the same way as two DC motors with the signals from
EA,I1,I2 and EB,I3,I4.