PC844-001-A Pacific Scientific
Wake Industrial LLC is not an authorized distributor of this product.
Wake Industrial LLC is not an authorized distributor of this product.
The Pacific Scientific PC844-001-A is part of the PC800 - PCE800 Brushless Servo Drives series and is equipped with a SERCOS network command interface. This drive offers a continuous output current of 7.1 A RMS and a peak output current of 21.2 A RMS for short durations. It features a 44-pin D-sub command I/O connector and weighs 2.6 kg.
Internal Product Review
The PC844-001-A is a Pacific Scientific brushless servo drive with a SERCOS network interface and 7.1 A RMS continuous output current. A 21.2 A RMS peak output current for 5 seconds and 16 kHz ripple frequency support sharp motor response and stable drive behavior under changing loads. Compact packaging and the included D-sub connector kit make this drive a strong choice for clean servo integration.
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Product Description:
The PC844-001-A is a brushless servo drive produced by Pacific Scientific within the PC800-PCE800 Brushless Servo Drives series. As part of a closed-loop motion system, the unit delivers controlled three-phase power to a matched servomotor and returns status data to the host controller. It is used in industrial automation where precise speed and torque regulation are required for packaging, material handling, and assembly stations. Integration is simplified because the drive combines power electronics, current regulation, and network communication in one housing.
Electrical performance centers on a continuous output capability of 7.1 A RMS, allowing the drive to run motors at rated load without derating. Short-term overloads are supported with a peak output of 21.2 A RMS for five seconds, which is useful during acceleration. The internal current loop is pulse-width modulated at a ripple frequency of 16 kHz, which helps reduce audible noise and motor heating. Command data are exchanged over the SERCOS Network, and control, feedback, and auxiliary signals enter through a 44-pin D-sub connector. For external sensors, the drive supplies a programmable auxiliary rail rated at 24 VDC, 80 mA, which simplifies wiring for limit switches or relay coils.
Position feedback devices receive a dedicated supply of 5 VDC, 250 mA, which keeps encoder power separate from the main bus. The power stage is compatible with motor windings from 1 H down to 1.25 mH, allowing operation with both high-inductance frameless motors and low-inductance high-speed models. The housing measures 198.1 mm in height, 114.8 mm in width, and 157.9 mm in depth, and four mounting slots with a diameter of 7.37 mm secure the drive to a control panel. The package includes a D-sub connector kit for field assembly. Overall mass is 2.6 kg, which keeps cabinet load low while maintaining the thermal capacity expected for this power level.
