SC933AN-040-02 Pacific Scientific
Wake Industrial LLC is not an authorized distributor of this product.
The Pacific Scientific SC933AN-040-02 is part of the SC900 Servo Drives series and features analog, incremental digital, or serial command interfaces. It delivers 2.2 kW of continuous output power at 240V and a peak output power of 4.5 kW, with a continuous output current of 7.5 Amps and a peak output current of 15 Amps. The servo drive is convection cooled and supports RS-232/485 serial communication.
Internal Product Review
The SC933AN-040-02 is a Pacific Scientific SC900 servo drive with analog, incremental digital, or serial command capability. Convection cooling and 96% power stage efficiency support clean cabinet integration and dependable thermal performance. A 7.5 A continuous output current with 15.0 A peak output current gives this drive strong control authority for demanding motion applications.
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Product Description:
The SC933AN-040-02 is a servo drive produced by Pacific Scientific for the SC900 Servo Drives series. It converts three-phase mains power into controlled current and voltage waveforms that regulate brushless servo motors used in positioning, packaging, and material-handling equipment. By monitoring motor feedback and executing torque or velocity loops, the unit supplies the commanded energy while protecting the connected actuator from overcurrent and overtemperature conditions. This closed-loop operation allows the drive to adjust its output as motor speed, load, and command signals change during a machine cycle.
With a 240 V three-phase supply, natural convection cooling, and an ambient temperature of 25 °C, the drive sustains a continuous phase current of 7.5 A. At the same operating point, it can deliver 2.2 kW of continuous mechanical power, matching mid-frame rotary servomotors used on conveyor axes or indexing tables. For brief acceleration events, the available current increases to 15.0 A, and the corresponding electrical output reaches 4.5 kW, allowing machinery to overcome inertial loads without an oversized power supply. The power stage operates at an efficiency of 96%, which limits heat generation and reduces the cooling demand inside the control cabinet. Its passively cooled chassis uses external fins to transfer heat to the surrounding air without fans that can collect dust or require routine maintenance.
System integration relies on an RS-232/485 serial port for diagnostics and parameter transfers. The command interface accepts analog, incremental digital, or serial commands, allowing connection to legacy PLCs and modern motion controllers. Motor selection must remain within an inductance range that has a line-to-line maximum of 2 H and a minimum of 2.0 mH. Staying within this range helps keep current ripple compatible with the drive’s current-mode control bandwidth. The available command options also support different machine architectures without requiring a separate signal converter between the controller and drive.
