SC933-001-NN-01 Pacific Scientific
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The Pacific Scientific SC933-001-NN-01 is part of the SC900 Servo Drives series and features a continuous output current of 7.5 Amps at 25°C convection. It offers a peak output power of 4.5 kW at 240 VAC and supports multiple command interfaces, including analog, incremental digital, or serial command. The drive includes RS-232/485 serial communications and achieves a power stage efficiency of 96%.
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Product Description:
The SC933-001-NN-01 servo drive is manufactured by Pacific Scientific as part of the SC900 Servo Drives series. Designed for closed-loop motion systems, it modulates three-phase power so that brushless motors follow commanded velocity and position profiles. By shaping current and voltage in real time, the drive functions as the intermediary between higher-level controllers and mechanical axes in automated assembly cells, palletizers, and gantry systems.
Under natural convection at 25 °C, the power stage can deliver a continuous 7.5 A phase current, which is the maximum steady-state torque-producing current the connected motor can use without overheating. At the same temperature, the drive supplies 2.2 kW of continuous mechanical output when fed from a 240 V three-phase source, supporting stable production duty. For transient moves such as acceleration or impact load recovery, the current can surge to 15.0 A, and the corresponding short-term power climbs to 4.5 kW. Power conversion losses are minimized by a 96% stage efficiency, so only a small fraction of the input energy is dissipated as heat. The motor-side impedance requirement tops out at 2 H of line-to-line inductance, which helps keep current ripple within the controller's regulation bandwidth.
Motion commands reach the drive through the RS-232/485 Serial port, and setpoints may be issued as Analog, Incremental Digital, or Serial Command formats, giving flexibility when the unit is paired with PLCs or PC-based controllers. The current regulator tolerates motor windings as low as 2.0 mH line-to-line, which accommodates compact, low-inductance servomotors that favor fast electrical response. This communication range allows the drive to fit into several control architectures without requiring a single command method. Low winding inductance also supports responsive current control during dynamic axis motion.
Frequently Asked Questions about SC933-001-NN-01:
Q: What types of command interfaces can the SC933-001-NN-01 servo drive use?
A: The SC933-001-NN-01 accepts analog, incremental digital, or serial commands as its command interface options.
Q: What communication protocols are available on the SC933-001-NN-01 servo drive?
A: RS-232 and RS-485 serial communications are supported on this model for data exchange and control integration.
Q: What is the continuous output power capability of the SC933-001-NN-01 at 240V 3-phase?
A: This servo drive provides a continuous output power of 2.2 kW when operating at 240V three-phase and 25°C under convection cooling.
Q: What is the peak output current rating for the SC933-001-NN-01 servo drive?
A: The maximum peak output current delivered by this drive is 15.0 A.
Q: What is the power stage efficiency of the SC933-001-NN-01 servo drive?
A: Power stage efficiency for this model is rated at 96%.
