Hi everyone at Basicmicro!
I have already used two RoboClaw 2x30a motor controllers successfully with following setup:
A 12 V lead car battery (with thick enough and short cables) supplying two motor controllers and three standard wiper motors. I also use Shottky diodes to provide an uninterrupted return path to the battery.
Everything worked fine until a short circuit between the motors fried the controllers - my fault
I bought another two RoboClaw 2x30a and made sure this would not happen again. However when applying power with the new controllers, the respective motor driver faults come on on both units. I am pretty sure there was no overcurrent or shortage this time. After a reset, the fault (light) is off until the unit tries to move a motor.
Thank you very much for your help!