SC933AN-001-01 Pacific Scientific
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The SC933AN-001-01 is a servo drive from Pacific Scientific in the SC900 Servo Drives series. It features a convection cooling system with no fan and supports command interfaces such as analog, incremental digital, or serial command. This unit delivers a continuous output current of 7.5 A at 25°C and has a peak output power of 4.5 kW at 240 VAC.
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Product Description:
The SC933AN-001-01 is a servo drive built by Pacific Scientific and supplied within the SC900 Servo Drives series. As a closed-loop power stage, it regulates current and voltage to a brushless servo motor so the axis follows motion profiles issued by higher-level controllers in industrial automation lines, packaging machines, and material-handling cells. The unit receives position or velocity commands, converts them into three-phase output, and supervises feedback to maintain precise motor control.
The drive exchanges setup data and run-time diagnostics through an RS-232/485 serial link, while its command interface accepts analog, incremental digital, or serial references for flexible integration. Under natural convection at 25 °C, it supplies a continuous output current of 7.5 A, delivering up to 2.2 kW of sustained mechanical power to the motor when fed from a 240 V three-phase source. During acceleration or short load spikes, the output stage can reach 15.0 A without losing regulation. Energy loss inside the IGBT bridge is minimized, and overall power stage efficiency reaches 96%, which reduces cabinet heat and lowers mains draw in applications that run for long periods.
Transient events are further supported by a peak power ceiling of 4.5 kW at 240 VAC, giving additional torque for indexing or rapid start-stop moves. Motor compatibility is limited to windings whose line-to-line inductance falls between 2.0 mH and 2 H; staying inside this range keeps current ripple within the algorithm limits of the Base Servo Software and helps prevent saturation faults. Thermal management relies on fanless convection cooling, so enclosure airflow must allow vertical rise past the heat sink. The unit is issued in the Standard revision and is classified as a Standard Unit for general-purpose motion tasks.
Frequently Asked Questions about SC933AN-001-01:
Q: What command interfaces are available on the SC933AN-001-01 servo drive?
A: The SC933AN-001-01 supports Analog, Incremental Digital, or Serial Command interfaces for flexible integration.
Q: What is the continuous output power rating of the SC933AN-001-01?
A: This drive provides continuous output power up to 2.2 kW when operated at 240V 3-phase with convection cooling at 25°C.
Q: What is the peak output current of the SC933AN-001-01 drive?
A: The SC933AN-001-01 achieves a peak output current of 15.0 A for demanding servo applications.
Q: What type of communication does the SC933AN-001-01 use?
A: This servo drive communicates using RS-232/485 serial connections, enabling reliable digital communication with controllers.
Q: What cooling method does the SC933AN-001-01 servo drive use?
A: The SC933AN-001-01 uses convection cooling and does not include an internal fan for heat dissipation.
