SC402-023-TC 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 SC402-023-TC is a servo drive from the SC400 Servo Drives series, offering a peak output current of 7.0 Amps and a continuous current of 4.2 Amps at 115 Vac. It supports a bus voltage of 160 VDC at 115 Vac and 320 VDC at 230 Vac, with a peak output power of 1000 W and 2000 W at 115 Vac and 230 Vac, respectively. The drive runs at a ripple frequency of 20 kHz and includes a shunt peak power rating of 1500 W.
Internal Product Review
The SC402-023-TC is a Pacific Scientific servo drive tuned for precise motion control, with 3.5 A continuous current and 7.0 A peak output current. Clean high-frequency operation at 20 kHz ripple frequency and 2000 W peak output power at 230 Vac make this unit a strong performer for demanding servo applications.
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Product Description:
The SC402-023-TC servo drive is produced by Pacific Scientific as part of the SC400 Servo Drives series. Designed for brushless motor control in industrial automation, the unit converts fixed-frequency mains into a regulated DC bus and pulse-width-modulated output, allowing precise velocity and torque loops in assembly machines, packaging lines, and material handling cells. It interfaces with standard motion controllers through an analog velocity command and relays operational status through isolated fault contacts.
When the drive is connected to a 115 Vac supply, the internal bus is stabilized at 160 VDC. Under this input, the power stage can deliver a continuous phase current of 4.2 A, and the motor current can be checked at the test point that scales feedback at 0.63 V/A. For acceleration or transient loads, output capability rises to 7.0 A peak, while thermal limits allow continuous mechanical power up to 1000 W on a 230 Vac three-phase source, a figure that also represents the peak rating when the drive is supplied from 115 Vac. The auxiliary logic supply draws no more than 10 mA, and an analog ±10 V velocity command sets the speed reference. Fault signaling is provided by an open-collector line rated at 25 mA and 30 VDC, enabling direct PLC monitoring. A shunt regulator dissipates 20 W continuously to hold the bus at safe levels during regenerative braking.
Operating from 230 Vac, the DC link is elevated to 320 VDC, doubling energy storage for higher power cycles. In this mode the drive can supply up to 2000 W of peak mechanical output and maintains switching at a carrier of 20 kHz to reduce audible noise. Regenerative surges are clipped by a shunt path that accepts 1500 W momentarily, preventing over-voltage trips during rapid deceleration. Continuous current at this input is 3.5 A, and the unchanged auxiliary and fault circuitry simplify platform wiring across installations.
