Hi,
I'm having problems with one of my 10A DC Motor controllers. I bought six for a small robotics project. All six are wired up, with the DC motor going to "A" and "B" and 12V power going to + and -. When I turn the power on, five of the speed controllers seem good to go. The on LED lights green and they seem to be awaiting commands from the microcomputer (they are not yet hooked up to it). However, the sixth motor controller the "B" LED lights up and the motor spins continuously. There is so little hooked up, I don't know what the problem could be. I have checked and double checked the wiring - the motor goes to A and B, the power goes to plus and minus. That's it. What would be causing the B LED to light up and my motor to spin without stopping, and how can I fix it?
Thanks.