Product Description:

The SC402-011-T3 is a servo drive built by Pacific Scientific for the SC400 Servo Drives series. It is intended to regulate brushless or brushed servomotors in automated machinery. It converts line power into a controlled DC bus and pulse-width-modulated output so that velocity and torque stay within commanded limits on packaging lines, pick-and-place axes, and similar motion tasks. Its control architecture supports stable axis behavior during starts, stops, and repeated speed changes.

This model operates from a single- or three-phase input of 115/230 VAC at 47-63 Hz and establishes DC bus rails of 160 VDC or 320 VDC depending on the selected mains. The power section can deliver a continuous motor phase current of 3.50 A and accept transients up to 7.0 A during acceleration. Output ripple is switched at 20 kHz so audible noise is minimized, and the form factor stays below 1.01 to limit harmonic distortion on the motor windings. A velocity command range of ±10 V interfaces with standard analog motion controllers, while the tach feedback gradient of 2.0 V/Krpm provides proportional speed information for the internal regulator. A sink-type fault output rated at 30 VDC and 25 mA signals overtemperature, overcurrent, or loss of feedback to the host controller. This helps the host controller react quickly and place the axis in a safe state.

Dynamic behavior is supported by a current loop bandwidth of 3 kHz, allowing precise torque corrections under rapidly changing loads. The faster current response helps the drive recover from load disturbances before they become noticeable as speed error. Overall conversion efficiency remains above 90%, which helps reduce cabinet heat rise in enclosed panels. When connected to 115 VAC service, the drive can supply up to 1000 W of peak mechanical power, and that rating increases to 2000 W on 230 VAC lines, which broadens motor selection without changing the controller.