Product Description:

The PC832-102-N brushless servo drive is built by Pacific Scientific and belongs to the PC800 – PCE800 Brushless Servo Drives series. It interfaces with three-phase 240 VAC supplies to modulate current and voltage for permanent-magnet servomotors used in positioning tables, feeders, and pick-and-place axes. By combining internal power conversion, regeneration handling, and fault monitoring in one housing, the unit simplifies axis control tasks within distributed industrial automation cabinets. It accepts standard command signals from motion controllers.

Under continuous duty, the power stage can deliver 2.7 ARMS of current and sustains a shaft power of 1.1 kW when loaded from a 240 VAC three-phase source. The converter draws a steady line current of 4.5 A, and its switching network operates at 20 kHz, which helps limit audible noise and torque ripple in the motor. With a measured efficiency of 98%, thermal losses stay low, so cabinet airflow requirements remain modest. The unit accepts motors whose phase inductance ranges from 4.0 mH to 4 H, allowing both low-inertia and high-torque actuators to be driven without current-loop instability. Up to 20 J of internal bus energy can be absorbed before the external shunt is engaged, and the regenerative section may be duty-cycled up to 6% for applications with frequent deceleration.

For transient moves, the amplifier supplies a peak output current of 5.3 ARMS and reaches a short-term power ceiling of 2.25 kW. Initial energization of the bulk capacitors draws an 300 A inrush, so upstream protection must be sized accordingly. A motor lead of up to 50 m can be installed without violating rise-time limits, and the current loop tolerates absolute peaks of 7.5 A (0-pk) during microsecond torque commands. Excess kinetic energy is routed to the shunt, where 800 W can be dissipated continuously and 12.8 kW for 500 ms to help prevent DC-bus overvoltage during emergency stops.