Product Description:

The PC3403AD-001-E is a servo drive manufactured by Pacific Scientific for the PC3400 Servo Drives series. As a closed-loop power stage, it rectifies incoming AC power, establishes a regulated DC bus, and delivers phase-controlled current to a connected brushless motor. Working with an external position sensor, it supports accurate velocity and torque regulation so indexing tables, palletizers, and robotic axes can maintain repeatable motion profiles. The standard configuration allows tuning, feedback, and network parameters to be set for the application.

The power section supplies up to 1.1 kW continuously while delivering a continuous motor current of 3 A RMS. Short-term load surges are supported by a peak current of 6 A RMS. A universal input bridge accepts line voltages from 80–253 VAC through either single-phase or three-phase power and operates over mains frequencies of 47–63 Hz. When the drive is unloaded, its internal bus stabilizes at 1.4 times the applied AC voltage, creating sufficient headroom for the pulse-width modulation inverter stage and helping prevent DC-link overmodulation. The available current and voltage ranges allow the drive to operate compatible brushless servomotors while keeping the power switches within their operating limits.

The thermal design supports continuous duty at ambient temperatures from 0 to 40 °C. When the unit is not operating, the electronics can be stored at temperatures from -25 to 70 °C. The drive tolerates 5% to 95% noncondensing relative humidity, and its conformal coatings inhibit moisture absorption by the internal electronics. Full output is available at elevations up to 3,300 feet. Above that elevation, output decreases by 2% for each additional 1,000 feet to compensate for thinner air and reduced convection. Adequate ventilation around the enclosure helps maintain continuous output within the stated temperature and elevation ranges.