The SC 50/15 is a small-sized, powerful 4-quadrant PWM servo controller for the highly efficient control of permanent magnet DC (PMDC) and brushless DC (BLDC) motors up to approximately 750 Watts with various feedback options, such as hall sensors or incremental encoders. The featured operating modes-speed control (closed loop) or speed control (open loop)-meet the highest requirements. The SC 50/15 is designed being commanded by a PWM input, analog input or an internal potentiometer set value signal and features extensive analog and digital I/O functionality. The device is designed to be configured via simple DIP switch and potentiometer settings for several functions and feedback options.