Product Description:

The PC832-XYZ-N is produced by Pacific Scientific as part of the PC800-PCE800 Brushless Servo Drives series. The unit interfaces with a three-phase 240 Vac supply and converts it to regulated current for brushless servomotors used in coordinated motion axes. Through selectable RS-232/485, ±10 V analog, step-and-direction, or internal indexing command modes, it can be integrated with PLCs or used for standalone positioning tasks in assembly, packaging, and test equipment.

In continuous service, the drive delivers 2.7 ARMS of motor phase current, which is sufficient to maintain rated torque without overheating. For transient load demands, it can surge to 5.3 ARMS, giving additional acceleration or disturbance-rejection margin. With a three-phase 240 Vac supply, its inverter stage supports 1.1 kW of continuous mechanical power and momentarily up to 2.25 kW, accommodating short duty peaks without derating. Conversion losses are reduced by a power-stage efficiency of 98%, so only minimal heat must be removed by the panel enclosure. Typical line draw is 4.5 A, while an internal shunt network dissipates 800 W of regenerated energy during motor deceleration. Physical installation requires 198.1 mm of height, 88.1 mm of width, and 158 mm of depth, allowing placement in compact multi-axis cabinets.

Control fidelity is supported by a 1.5 kHz current-loop bandwidth, giving the amplifier rapid authority over motor flux. The digital controller refreshes every 62.5 µs, allowing the velocity loop to receive frequent torque updates for smooth low-speed operation. Rotor angle feedback is resolved at 24 bits/rev, so incremental moves are quantized to fractions of an electrical degree. Power devices switch at an output ripple frequency of 20 kHz, moving acoustic noise above the audible range and reducing motor torque ripple. A dedicated resistor bank can absorb 12.8 kW in short bursts, preventing DC-bus overvoltage during emergency stops without external braking hardware.