Product Description:

The SC943T200101 is a servo drive module built by Pacific Scientific and supplied as part of the SC900 Servo Drives series. Designed to regulate torque, velocity, and position of compatible servo motors, the unit forms the bridge between motion controllers and three-phase brushless motors in automated machinery. By converting low-level command data into high-current, high-voltage motor phases, it maintains precise axis movement for packaging lines, pick-and-place stations, and other industrial motion segments. Its role is to translate commanded motion profiles into regulated motor output so the connected axis can start, stop, and track position smoothly.

For control interoperability, the drive employs SERCOS Communications & Control, allowing fiber-optic, real-time exchange of setpoints and status with multi-axis controllers. Under natural convection at 25 °C, it can deliver a continuous armature current of 7.5 A, translating to a sustained mechanical output of 2.2 kW when powered from a 240 V three-phase source. During rapid indexing or load surges, the current envelope expands to 15.0 A peak, and the power stage can momentarily supply 4.5 kW to overcome inertia or friction without exceeding thermal limits. These values align the drive with mid-frame rotary servomotors whose phase inductances and thermal curves match the SC900 tuning range.

Thermal management relies on a 240 Vac fan-cooled assembly that maintains semiconductor junction temperatures while preserving a power conversion efficiency of 96%, which reduces cabinet heat load and line-side power draw. The power stage accepts motors exhibiting phase-to-phase inductances up to 2 H yet remains stable with windings as low as 2.0 mH, allowing use with both low- and high-inductance machines. This inductance range broadens motor compatibility in systems that use different winding styles across separate axes. Stable thermal control also helps the drive maintain consistent electrical performance during extended motion cycles.