SC905TN-001-01 by Pacific Scientific

The Pacific Scientific SC905TN-001-01 servo drive from the renowned SC900 Servo Drives series is engineered for demanding industrial automation tasks. As a high-performance servo drive, it delivers a peak output current of 60 A and supports a continuous output power of 9 kW under forced air cooling at 240 VAC three-phase. Boasting a power stage efficiency of 97%, this unit ensures minimal energy loss during operation. Its primary function is to provide precise torque and speed control for AC servo motors in a wide range of manufacturing and processing environments.

In-depth technical specifications demonstrate the SC905TN-001-01’s robust design. The drive features a continuous output current (50 °C, forced air) rating of 30 A and a peak output current of 60 A to handle sudden load demands. It offers bus capacitance energy absorption of 50 J at 320 V and a shunt regulator peak power (300 ms) of 20 kW for efficient regeneration. The resolver position signal resolution is 24 bits (0.0013 arcmin), delivering exceptional positional accuracy. An inrush pulse width of 2 ms limits power disruptions at startup, while the maximum external regeneration duty cycle of 10% ensures reliable energy recapture during deceleration.

Additional features emphasize the drive’s compatibility and durability. It operates across an ambient temperature range of 0 °C to 50 °C (with full Ipeak/2) and can be stored between –40 °C to 70 °C. The unit accommodates motor cable lengths up to 50 m (164 ft) and handles motor inductances from 0.5 mH to 0.5 H. With a suggested transformer rating of 3–4 kVA and no requirement for auxiliary cooling beyond forced air, the design minimizes maintenance. These attributes, combined with high power density and regenerative capabilities, make the SC905TN-001-01 an ideal choice for optimizing efficiency, reliability, and precision in modern industrial applications.