PCE833-001-N Pacific Scientific
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The Pacific Scientific PCE833-001-N is part of the PC800 - PCE800 Brushless Servo Drives series. This drive supports a motor AC supply of 380 to 480 VAC in 3-phase, and offers a continuous output current of 3.75 ARMS with a peak output power of 6.4 kW at 480 VAC. Its command interface includes RS-232/485, ±10 VDC, Step/Dir, and Indexing, and the power stage operates at 97 percent efficiency.
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Product Description:
The PCE833-001-N is a brushless servo drive from Pacific Scientific that falls within the PC800 – PCE800 Brushless Servo Drives series. It is designed to regulate torque, velocity, or position of permanent-magnet motors in automated machinery, linking the controller layer to electromechanical motion. This unit accepts a three-phase supply of 380/400/480 VAC and communicates through RS-232/485, ±10 VDC, Step/Dir, or Indexing commands, giving it flexibility for PLC or PC-based control schemes.
Under steady load it delivers a continuous output of 3.75 ARMS and furnishes 2.6 kW of continuous mechanical power when powered from 480 VAC. Drive output is filtered at 16 kHz, a switching frequency that minimizes audible noise and ripple torque. Internal losses are limited by a 97% power-stage efficiency, so cabinet heating remains moderate and thermal derating is avoided. A KTK-20, 20 A, 600 VAC fuse is specified for branch protection, while inrush events can reach 175 A. The RMS line demand is 5.1 ARMS during normal operation. For energy returned during deceleration, an external 66 Ω, 200 W regeneration resistor can be wired to the DC bus. Motor compatibility spans 5 mH to 5 H of inductance, allowing both low- and high-impedance windings.
Building on those continuous figures, the drive supports a peak output of 7.5 ARMS for short bursts and a momentary current crest of 10.6 A from zero to peak for rapid torque rise. This capability translates into a surge power ceiling of 6.4 kW when the application calls for fast indexing or load acceleration. Motor leads may be routed up to 50 m without violating rise-time or EMI limits, provided the cable meets the stated inductance window. The wide inductance range lets the drive operate with both compact, low-reactance motors and larger units that store more magnetic energy.
