SC904AN-047-01 Pacific Scientific
Wake Industrial LLC is not an authorized distributor of this product.
The Pacific Scientific SC904AN-047-01 is a servo drive in the SC900 Servo Drives series with a peak output power of 9.0 kW at 240 VAC. It can deliver a continuous output current of 15.0 A and uses convection cooling without a fan. This servo drive operates with a power stage efficiency of 97% and supports both analog and incremental digital command interfaces.
Internal Product Review
The SC904AN-047-01 is a Pacific Scientific SC900 servo drive with an analog or incremental digital command interface and fanless convection cooling. Continuous output of 15.0 A and peak output of 30.0 A give the drive strong current headroom for demanding motion applications. Power stage efficiency of 97% makes the SC904AN-047-01 an excellent choice for efficient servo control.
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Product Description:
The SC904AN-047-01 is a digitally controlled drive manufactured by Pacific Scientific within the SC900 Servo Drives series. Designed for industrial automation, the unit converts three-phase mains power into controlled AC output, enabling closed-loop speed and position control of brushless servomotors used in packaging lines, pick-and-place gantries, and similar motion axes. The product is configured through an external setup tool and integrated into the machine control loop, where it delivers current commands that follow reference signals from a motion controller.
The command input supports analog or incremental digital signals, so speed or torque references can be supplied as either ±10 V signals or step-and-direction pulses without additional interface cards. With natural convection at 25 °C, the drive provides a continuous output of 15.0 A, which supports axis duty cycles that demand constant torque. When operating from a 240 V three-phase supply, the drive provides 4.5 kW of continuous output power to the connected motor. Thermal management uses fanless convection cooling, eliminating moving cooling components and reducing enclosure noise. Even with passive cooling, the power stage maintains an efficiency of 97%, which helps limit heat accumulation inside the control cabinet.
During acceleration or shock loading, the current limiter permits a peak output of 30.0 A, while short-term output power can reach 9.0 kW when the DC bus is supplied from a 240 VAC source. The drive supports motors with phase-to-phase inductance ranging from 1.0 mH to 1 H, accommodating motors with different electrical and mechanical characteristics. Communication hardware is not embedded in the unit, so parameter changes are made and stored locally through the Base Servo Software after analog tuning. This local configuration method allows the drive to receive reference commands directly from the machine controller without relying on an integrated fieldbus interface.
