Product Description:

The PC834-001-N servo drive is manufactured by Pacific Scientific for the PC800 - PCE800 Brushless Servo Drives series. Serving as a panel-mounted amplifier for brushless servomotors, it converts three-phase line power into a regulated DC bus and controlled AC output so motion controllers can position axes with high dynamic accuracy. With a compact footprint measuring 198.1 mm tall, 114 mm wide, 158 mm deep, and weighing 2.6 kg, the unit fits densely in multi-axis cabinets while minimizing thermal load on surrounding electronics.

The drive delivers a continuous phase current of 7.1 ARMS, allowing it to sustain rated torque on matched servomotors without exceeding its thermal limit. When connected to a 240 V three-phase mains, it can supply a continuous mechanical output of 3.0 kW, while drawing only 12 A of rms line current thanks to a power section that rectifies and stores energy on a 320 VDC bus. A command interface that accepts RS-232/485 serial frames, ±10 V analog velocity loops, step-and-direction pulse trains, or internal indexing tables simplifies pairing with PLCs and motion cards. The minimum permissible motor inductance is 1.25 mH to keep current ripple within the switching regulator’s bandwidth, and the three input phases balance DC bus charging so harmonic distortion is limited.

During accelerations, the PC834-001-N can boost phase current to 10.6 ARMS when forced-air cooling is applied, and deliver momentary peaks of 21.2 ARMS for rapid load transients. This translates to a short-duration shaft power of 9.0 kW, letting machinery clear inertia without oversizing the motor. The input bridge tolerates an inrush of 300 A as the bulk capacitors charge, so fusing and contactors must be sized appropriately. Motor leads may extend up to 50 m before carrier-frequency derating is required, supporting long-travel gantries.