SC403-012-T2 Pacific Scientific
Wake Industrial LLC is not an authorized distributor of this product.
Wake Industrial LLC is not an authorized distributor of this product.
The Pacific Scientific SC403-012-T2 is part of the SC400 Servo Drives series and operates with an input voltage of 115 or 230 VAC. It delivers a continuous output current of 7.5 Amps with a peak output current of 15 Amps and can reach a peak output power of 4500 Watts at 230 VAC. The drive features bus voltages of 160 VDC at 115 VAC and 320 VDC at 230 VAC.
Internal Product Review
The SC403-012-T2 is a Pacific Scientific servo drive built for stable motion control with 115/230 VAC input and 7.5 A continuous output current. Peak capability of 15 A and 4500 W supports demanding acceleration profiles, making this unit a strong choice for high-performance servo applications.
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Product Description:
The SC403-012-T2 is a servo drive produced by Pacific Scientific within the SC400 Servo Drives series. It regulates current and velocity for permanent-magnet motors used in industrial automation cells, packaging lines, and material-handling axes. By converting the single- or three-phase mains supply into a regulated DC bus and pulse-width-modulated output, the unit provides closed-loop torque and speed control to the connected servo motor.
When powered from 115 VAC, the internal rectifier establishes a bus of 160 VDC, while a 230 VAC supply produces a higher bus of 320 VDC; these two levels set the available motor voltage for low- and high-line installations. The drive can deliver a continuous phase current of 7.5 A, which equates to a sustained mechanical output of 2250 W on a 230 VAC three-phase mains supply. Pulse modulation is performed at an output ripple frequency of 15 kHz, keeping current distortion above the audible range and reducing motor torque ripple. A sinking fault transistor is provided; it can draw 25 mA at up to 30 VDC so that external controllers receive an active-low alarm. Command signals are differential ±10 V, and the analog offset drifts only 50 µV/°C to maintain velocity accuracy over temperature.
During accelerations, the drive supplies a peak current of 15 A, enabling short bursts of up to 4500 W mechanical power. Regenerated energy is absorbed by an internal shunt that dissipates 40 W continuously and can handle a momentary surge of 6000 W without exceeding its thermal limit. Speed feedback from a tachometer is supported through a gradient of 1.0 V/Krpm, simplifying gain selection in velocity loops. Additional characteristics include a 4.5 in chassis width for dense panel layouts and a velocity command input that is linear across the full ±10 V range.
