SC904NN-001-01 Pacific Scientific
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The Pacific Scientific SC904NN-001-01 is part of the SC900 Servo Drives series and supports analog or incremental digital command interfaces. This convection cooled unit provides a continuous output current of 15.0 Amps and achieves a peak output current of 30.0 Amps. Its power stage efficiency is rated at 97 percent, and it delivers a continuous output power of 4.5 kW at 240V three-phase.
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Product Description:
The SC904NN-001-01 servo drive is produced by Pacific Scientific and belongs to the SC900 Servo Drives series. Designed to regulate torque, velocity, or position of brushless servomotors in automated machinery, it converts three-phase mains power into controlled current for the motor windings while accepting reference commands from a motion controller. The unit fills the power and control role in motion axes that require accurate feedback and moderate power for packaging, material handling, and assembly equipment. This makes it suitable for indexing stations, conveyor sections, and other coordinated axes where stable motor response is needed during repeated start, stop, and speed-change cycles in compact automation cells.
Drive control signals are presented through an analog or incremental digital interface, so reference commands can be supplied through conventional hardwired control connections rather than an embedded fieldbus. Under natural convection at 25 °C, the power stage delivers a continuous phase current of 15.0 A, which supports up to 4.5 kW of shaft power when the unit is supplied from 240 V three-phase power. Thermal management uses a fanless convection-cooled design, so cabinet layout must allow heat to dissipate without forced airflow. The power stage operates at an efficiency of 97%, which helps limit internal heat generation during normal operation and supports steady output in enclosed control panels.
For short-duration demands such as acceleration, the amplifier can source a peak current of 30.0 A and support a peak mechanical output of 9.0 kW. The drive can be paired with motors that have line-to-line inductance from 1.0 mH to 1 H, allowing compatibility with both low- and high-inductance windings. Because the unit does not include communications ports, parameter access is limited to the command connectors, and the fixed-function design avoids the added circuitry of a network card. This arrangement suits systems that use direct hardwired command signals and prefer a simpler control architecture over network-based integration.
Frequently Asked Questions about SC904NN-001-01:
Q: What command interfaces does the SC904NN-001-01 servo drive support?
A: The SC904NN-001-01 supports both analog and incremental digital command interfaces for versatile control integration.
Q: What is the continuous output current rating of the SC904NN-001-01?
A: This servo drive provides a continuous output current of 15.0 A at 25°C with convection cooling.
Q: How is the SC904NN-001-01 servo drive cooled?
A: The SC904NN-001-01 employs convection cooling and does not use an integrated fan for heat dissipation.
Q: What is the peak output current capability of the SC904NN-001-01 servo drive?
A: The unit reaches a peak output current of 30.0 A, allowing for momentary high-demand applications.
Q: What power stage efficiency does the SC904NN-001-01 servo drive offer?
A: Power stage efficiency for the SC904NN-001-01 is rated at 97%, enabling energy-saving operations.
