D30/7.5/4Q-E3B General Description The D30/7.5/4Q-E3B is a small 4-quadrant digital controller for the control of brushless motor up to 180 W, equipped with digital hall sensors. Features: • Digital speed control - operates as «closed loop» speed controller • Maximum speed 60,000 rpm (motor with 1 pair of poles) • Set value input through external analogue voltage (0 ... +5 V) • Set value input through external PWM 200 Hz • Direction of rotation preset by a digital signal • The output stage can be enabled or disabled • Maximum output current limit adjustable up to 16 A • Motor speed can be monitored with the «FG» output • Motor blocked protection (current limit for blocked motor) • Protective functions: overvoltage and short circuit protection • The built-in shunt regulator is designed to limit the supply voltage of the controller • Compact size with aluminum housing