RB-Cyt-133 Cytron 30A 5-30V Single Brushed DC Motor Driver

[ekwilson]

I am wondering if the switch inputs for direction switches A and B could be logic levels referenced to ground. Or do the switches need to float with reference to ground. Also, there is some non-engish in the last line of this section:
6.3 Interface with Microcontroller
To control the motor with a microcontroller, set the jumpers as below:
JP4 : Don’t Care
JP6 : EXT PWM
Truth table for the control logic:
PWM DIR Output A Output B
Low X (Don’t Care) Low Low
High Low High Low
High High Low High
** Please do note that to set either DIR or PWM pin at LOW condition first when power is on.

Does this mean that the DIR or PWM must be at low at power up or I can take one to low at any time and change the direction of the motor?

Thank you

[dialfonzo]

Hi ekwilson,

We believe this is only a warning to set them LOW at power-up to avoir any output going to the motor.
You can change the direction and speed while the system is powered without issues.

All the best,