SC903TN-001-01 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 SC903TN-001-01 is part of the SC900 Servo Drives series and is convection cooled with no fan. It offers a continuous output current of 7.5 Amps and a continuous output power of 2.2 kW at 240V 3-phase. The servo drive supports both analog and incremental digital command interfaces and reaches a peak output current of 15 Amps with 96 percent power stage efficiency.
Internal Product Review
The SC903TN-001-01 is a Pacific Scientific SC900 servo drive with fanless convection cooling, a practical choice for clean control cabinet installations. Support for analog or incremental digital command input and 7.5 A continuous output current gives the unit strong flexibility in precision motion applications. A 96% power stage efficiency stands out as a key performance advantage.
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Product Description:
The SC903TN-001-01 is a servo drive manufactured by Pacific Scientific as part of the SC900 Servo Drives series. It conditions three-phase power and closed-loop feedback to regulate brushless servo motors used in positioning tables, pick-and-place systems, and other motion axes where tightly controlled torque, speed, and position are required. It uses standard control software that follows the expected SC900 command structure. This arrangement lets the drive respond quickly to command changes while maintaining stable axis control during indexing and repeatable positioning tasks.
This unit accepts motion commands through an analog or incremental digital interface, allowing either ±10 V velocity loops or step-and-direction pulse streams from a PLC or motion card. Under natural convection at 25 °C, it can deliver a continuous phase current of 7.5 A, translating to steady electromagnetic torque without overheating. When operated from a 240 V three-phase source, the continuous mechanical output reaches 2.2 kW, supporting mid-range servo motors in packaging or material-handling machinery. Thermal management relies on a fanless, convection-cooled chassis, so the absence of forced airflow simplifies cabinet layout but requires free air space around the heatsink. During rapid accelerations, the power section can supply a peak line-to-line current of 15.0 A, enabling short bursts of torque for overcoming inertia or friction.
A transient move at 240 VAC can draw on a mechanical ceiling of 4.5 kW, providing a clear margin between nominal and surge demands. Conversion losses are minimized by a power-stage efficiency of 96%, which lowers cabinet heat load and improves overall system energy use. Motor selection is guided by the permissible inductance window. Windings can be as high as 2 H or as low as 2.0 mH phase to phase, allowing the SC903TN-001-01 to drive both high-torque, low-speed and low-torque, high-speed servomotor designs without current loop instability.
