PC834-114-N Pacific Scientific
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The PC834-114-N is a brushless servo drive by Pacific Scientific, part of the PC800 - PCE800 Brushless Servo Drives series. It provides a continuous output current of 7.1 ARMS and a peak output current of 21.2 ARMS, with a power stage efficiency of 98%. The drive supports RS-232/485, ±10 Vdc, Step/Dir, and Indexing command interfaces and has a 24-bit position resolution.
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Product Description:
The PC834-114-N brushless servo drive is manufactured by Pacific Scientific and belongs to the PC800–PCE800 Brushless Servo Drives series. It converts a 240 VAC three-phase input into controlled motor power for permanent-magnet servomotors used on automated conveyors, pick-and-place modules, and indexing tables. By combining power conversion, current regulation, and position-loop processing in one enclosure, the unit streamlines axis integration in industrial machinery.
For continuous operation, the drive delivers an output current of 7.1 A RMS while supplying 3.0 kW of electrical power to the motor terminals. During rapid acceleration, it can source a peak current of 21.2 A RMS, and its silicon components and bus design support an idealized surge power of 9.0 kW. Incoming line energization draws an inrush current of 300 A, so upstream protection must be sized accordingly. Once running, a switched-mode topology provides a power-stage efficiency of 98%, limiting heat inside the panel. Analog feedback, such as tachometer signals or torque commands, is available through a ±5.5 V single-ended output, and the differential command inputs accept ±13.5 V, providing flexibility for external controllers. Six optically isolated digital inputs support drive control, limit-switch monitoring, and homing functions. The relay output is rated for 30 VDC at 1 A and can provide status signaling to connected control equipment.
Closed-loop velocity regulation reaches a bandwidth of 400 Hz, and the internal interpolator provides a 24-bit position resolution suitable for precision material-handling applications. Command paths include RS-232/485 serial links, ±10 V analog velocity mode, step-and-direction pulses, and standalone indexing, so the same drive supports several control architectures. These interfaces allow the unit to receive commands from motion controllers, programmable logic controllers, or other compatible automation devices. The aluminum housing measures 114 mm wide, 198.1 mm high, and 158 mm deep, allowing high-density mounting on DIN rails or chassis plates without exceeding typical enclosure depths. Its compact enclosure helps preserve panel space while maintaining access to power, feedback, communication, and control connections.
