Product Description:

The PC832-111-N is a drive unit from the PC800–PCE800 Brushless Servo Drives series produced by Pacific Scientific. It serves as the power interface between a motion controller and a brushless servo motor, supplying regulated current loops that translate position or velocity commands into rotor torque for industrial automation axes. This control method supports accurate motion on equipment that requires steady torque response during positioning moves and speed changes. By coordinating the continuous and peak current capabilities discussed below, the unit enables repeatable positioning and speed control across diverse machine platforms.

The drive delivers a continuous convection-cooled output of 2.7 ARMS, allowing stable operation with motors whose inductance falls between the minimum 4.0 mH and a maximum of 4 H. During fast accelerations, it supports a 7.5 A peak for five seconds, while the internal capacitor bank can absorb 20 J of bus energy returned from overhauling loads. A power stage efficiency of 98% minimizes heat dissipation, and residual switching ripple is managed by a carrier frequency of 20 kHz, which helps limit electrical noise. The housing measures 88.1 mm in width, 158 mm in depth, and 198.1 mm in height, so the unit fits compact control cabinets without requiring excessive panel space.

The drive uses a shunt network rated for 800 W continuous and 12.8 kW peak during long decelerations, and its output capability reaches 2.25 kW for demanding servo duty. Installed mass is 1.9 kg, which keeps handling straightforward during panel installation, and operation is permitted at elevations up to 1500 m without derating. The permissible inductance range helps the current regulators remain stable with compatible motors across different load conditions. Bus ripple filtering also helps protect motor insulation when regenerative energy and switching activity increase during dynamic operation.