Product Description:

The PC3406Ai-001-R is an intelligent servo drive manufactured by Pacific Scientific for the PC3400 Servo Drives series. Acting as the power and control interface between a motion controller and a brushless motor, it converts incoming AC power into regulated, high-bandwidth current for precise torque and speed regulation in automated machinery. Onboard processing lets the drive execute its own control loops, so it can run stand-alone axes or integrate into multi-axis networks used in packaging, material handling, and assembly cells. This arrangement reduces the processing burden on the primary motion controller while maintaining responsive control of the connected motor.

Rated for a continuous output of 2.3 kW, the unit delivers up to 6 ARMS continuously and tolerates 12 ARMS during acceleration surges. The power section accepts 80–253 VAC from either single- or three-phase supplies. Internally, the incoming power is rectified to a DC bus that floats at 1.4 times the applied voltage under no-load conditions. A 20 MHz Thompson F168 processor supervises the current loop every 102.4 µs, updates velocity every 408 µs, and refreshes position every 2.0 ms. The processor uses 256 K of flash memory and 256 K of RAM to support these control functions.

Continuous operation is supported up to an altitude of 3,300 ft, with a 2% power derating for each additional 1,000 ft. Heat sinking must keep the drive within an ambient temperature range of 0 to 40 °C, while nonoperating storage is permitted from −25 to 70 °C. The cabinet can accommodate relative humidity from 5% to 95% under noncondensing conditions. An input frequency range of 47–63 Hz supports operation with common mains power systems. Proper airflow and heat-sink contact are necessary to keep the power electronics within the permitted operating temperature range during sustained loads. The altitude derating reduces thermal stress when lower air density limits heat transfer at elevated installation sites.