SC905TN-001-01 Pacific Scientific
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The Pacific Scientific SC905TN-001-01 is part of the SC900 Servo Drives series. It delivers a continuous output current of 30.0 Amps at 50°C forced air and a continuous output power of 9.0 kW at 240V three-phase. This standard unit features analog or incremental digital command interfaces and uses convection cooling without a fan.
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Product Description:
The SC905TN-001-01 servo drive is produced by Pacific Scientific as part of the SC900 Servo Drives series. This closed-loop amplifier regulates the current and voltage supplied to a compatible brushless servo motor, translating control commands into precise torque and speed for automated machinery such as packaging actuators and positioning tables. By conditioning three-phase 240 VAC power and providing real-time current regulation, the unit connects motion controllers and motors in industrial automation systems.
At ambient temperatures below 50 °C, with adequate cabinet airflow, the drive can deliver a continuous output current of 30.0 A, corresponding to a sustained electrical output of 9.0 kW when supplied by a 240 V three-phase bus. For rapid acceleration, it supplies up to 60.0 A on a half-cycle basis, raising the available electrical output to 18.0 kW for short intervals. The power stage operates at an efficiency of 97%, so only a small portion of the input energy is lost as heat. Built-in control functions manage the current, velocity, and position loops, while the base servo software supports the adjustment of peak limits, I²t protection, and fault logging through the front-panel analog terminals.
The drive uses an analog or incremental digital command path, so setpoints enter through ±10 V signals or differential quadrature pulses. No fieldbus card is installed, and parameter adjustments use the same command interface. The housing is cooled by natural convection, which eliminates an internal cooling fan but requires adequate airflow around the enclosure at higher loads. Motor selection must remain within the supported inductance range to keep the current regulators stable during rapid duty cycles. Phase-to-phase motor inductance can be as high as 0.5 H and must not fall below 0.5 mH.
Frequently Asked Questions about SC905TN-001-01:
Q: What command interfaces does the SC905TN-001-01 servo drive support?
A: The SC905TN-001-01 supports both analog and incremental digital command interfaces for versatile control options.
Q: What is the continuous output current rating for the SC905TN-001-01 under forced air cooling at 50°C?
A: This drive provides a continuous output current of 30.0 A when operated at 50°C with forced air cooling.
Q: What is the peak output power of the SC905TN-001-01 drive at 240 VAC?
A: The SC905TN-001-01 achieves a peak output power of 18.0 kW at 240 VAC.
Q: How is the SC905TN-001-01 servo drive cooled?
A: This model uses convection cooling with no fan, relying on passive airflow for thermal management.
Q: What is the power stage efficiency of the SC905TN-001-01 servo drive?
A: The power stage efficiency of the SC905TN-001-01 is rated at 97%, supporting energy-efficient operations.
