Product Description:

The SC403-001-T5 is a digital servo drive produced by Pacific Scientific and offered within the SC400 Servo Drives series. Built to regulate brushless servomotors in factory equipment, the unit converts fixed-frequency mains power into controlled DC bus energy and pulse-width-modulated phase output. By managing current, velocity, and shunt dissipation, the drive supports precise position or speed loops in packaging lines, pick-and-place axes, and other closed-loop motion tasks. Its control structure is suited to applications that need stable motor response during repeated starts, stops, and direction changes.

With a universal 115/230 VAC supply, the internal rectifier charges the DC bus to 160 VDC or 320 VDC depending on line selection. The power stage can deliver a continuous phase current of 7.5 A, supporting 2.25 kW of mechanical output on 230 V three-phase motors. A current loop rated at 3 kHz sits inside the control ASIC, while carrier switching occurs at an output ripple frequency of 15 kHz. Together, these values show how quickly the drive can respond to torque commands while maintaining a finely controlled output waveform. The ±10 V differential velocity command input works with an analog front end whose offset changes only 50 µV per degree Celsius, helping preserve speed accuracy as temperature changes.

During short accelerations, the inverter supplies a peak line current of 15 A, pushing shaft power up to 2.25 kW on a 115 V bus or 4.5 kW on 230 V. Internal losses are handled by a shunt circuit rated for 40 W continuous and up to 6000 W in bursts so kinetic energy is dissipated during deceleration. Overall efficiency stays above 90% across the operating range, which helps reduce heat buildup inside the enclosure. The housing is only 4.5 in wide, allowing multi-axis panels to remain narrow where cabinet space is limited. These operating characteristics suit compact motion systems that need accurate speed regulation and controlled braking behavior.