Product Description:

The PC843-XYZ-F is a brushless servo drive produced by Pacific Scientific for the PC800-PCE800 Brushless Servo Drives series. In automated machinery, it acts as the power conversion stage that turns low-level motion commands into regulated three-phase current for a matched servo motor, allowing coordinated positioning, speed regulation, and torque control on production equipment. A fiber-optic SERCOS network link carries timing-critical setpoints and feedback, letting the drive integrate directly with PLC or CNC controllers for deterministic operation.

Its communication layer supports a baud rate of 16 MBaud, enabling rapid command updates over the SERCOS interface. Under continuous loading, the power section delivers 3.6 ARMS, while transient moves can draw a peak output of 10.6 ARMS and a 0-to-peak surge of 15 A without losing regulation. Internal modulation operates at a current-ripple frequency of 20 kHz, reducing audible noise and smoothing motor torque. The silicon and bus design yield a power-stage efficiency of 98%, which helps limit heat buildup inside the cabinet. Six digital inputs and three digital outputs provide local sequence handling, and a relay contact rated at 30 Vdc at 1 A controls external brakes or contactors. The housing measures 88.1 mm wide and 158 mm deep, allowing side-by-side mounting in compact cabinets.

For axis wiring, the drive supports a motor cable run of 50 m and accommodates windings with inductance from 2.0 mH up to 2 H. This range allows the unit to operate with both small-frame motors and higher-torque motor combinations that require greater inductance. At 198.1 mm in height, the enclosure matches other PC800 modules so airflow paths remain uniform across a rack. The consistent enclosure height also helps keep multi-axis panel layouts orderly when several drives are mounted together.