The MBDC050-050301 is a DC Speed Controller designed to drive Brush DC Motors at currents up to 30A peak with an input voltage range of 20-50VDC. An internal potentiometer is used to set the peak motor current limit between 10.0-30.0A, and an external DC power supply ranging from 0 to 5V can be applied to vary the speed of the motor. The direction of the motor can be preset by the direction control input. When using the run/stop input, there are three ramp-up profiles from stand-still to select from. The run/stop input will override all other inputs into the driver. This controller features protection from over-current and under-voltage. The fault protection is set for a cycle-by-cycle motor turn-off.