Product Description:

Pacific Scientific manufactures the SC452-017-05 as part of its SC450 Brushless Servo Controllers series. The unit is supplied as a programmable digital position controller for brushless servo motors used in pick-and-place cells, indexing tables, and material-handling axes. Resolver feedback is accepted directly, allowing the controller to track shaft orientation without additional electronics. Within an automation system, the controller closes the position loop internally and provides simultaneous motion and velocity regulation.

For continuous duty on a 115 VAC supply, the drive can source 4.2 A, while short bursts up to 7.0 A are available for acceleration or disturbance rejection. Peak output power reaches 2000 W when the controller is supplied from a 230-volt line, and its pulse-width-modulated stage switches at 20 kHz so audible noise stays outside the human hearing range. Position commands are resolved to 4096 steps per rev, furnishing fine granularity for incremental moves, and closed-loop operation is maintained across an ambient span of 0 to 50 °C without derating. These electrical and thermal limits set the steady-state envelope for cabinet layout, conductor sizing, and heat sink airflow.

The controller weighs 2.7 kg, fits easily on DIN rails or shallow panels, and maintains mechanical repeatability to within 15 arcmin. It accepts programmed targets anywhere from 0 to +100,000,000 steps, a range suited to long linear translators coupled through gearboxes. A second continuous-current rating of 3.5 A applies when the higher mains tap is used, providing an alternate supply option. PacSci ServoBASIC support lets motion sequences, loop gains, and diagnostic routines be stored on board, and the resolver interface simplifies wiring by using a single shielded pair. Long-term storage from −55 to +70 °C is permitted, reflecting component selection that tolerates extreme warehouse or transit environments.