Product Description:

The SC452-011-05 belongs to the SC450 Brushless Servo Controllers series developed by Pacific Scientific. It is a programmable digital position controller intended to drive and regulate brushless servo motors in automated assembly cells, pick-and-place gantries, and general motion axes. By using the PacSci ServoBASIC environment, the unit interprets motion commands, applies velocity profiles, and closes the position loop through resolver feedback. The controller integrates power electronics, logic, and field wiring terminals into a compact module, which reduces panel space and simplifies integration within distributed control architectures.

With a 115 VAC supply, the drive can deliver a continuous output of 4.2 A, while a 230 VAC line allows a continuous level of 3.5 A. For acceleration bursts or load spikes, the current limit rises to 7.0 A, enabling short-term torque multiplication without a thermal trip. When operated from the higher mains input, the converter section can furnish as much as 2000 W of peak mechanical power to the motor shaft. The pulse-width modulated stage switches at 20 kHz, which helps minimize audible noise and reduce current ripple through the motor windings. Resolver interface pins return rotor angle data every cycle so the controller can maintain commutation and update position commands.

Closed-loop precision uses a native resolution of 4096 steps per rev, permitting incremental motion down to fractional degrees across a positioning span of 0 to 100,000,000 steps. Combined with an accuracy window of 15 arcmin, this resolution supports repeatable positioning in indexing tables or syringe-pump platforms. The operating temperature range is 0 to 50 °C, and safe storage extends as low as -55 °C during transport or inactive storage. The aluminum housing weighs 2.7 kg, which helps when mounting the unit on DIN rails or slide-in racks where cabinet mass is limited.