Product Description:

The SC103-001-T2 is a brushless servo controller produced by Pacific Scientific and positioned within the SC100 Brushless Servo Controllers series. It is intended to drive permanent-magnet servo motors in automated machinery. The unit supplies regulated DC power and closed-loop speed or torque control so that axes maintain commanded motion profiles under varying mechanical loads.

This controller operates from a nominal bus voltage of 320 VDC, allowing ample headroom for high-speed motor commands. At stall, it can deliver a continuous output current of 15 A, which lets a properly cooled motor hold torque without overheating. The continuous mechanical output capability is 4.5 kW, matching medium-frame servomotors used on packaging lines and material-handling stages. A current loop bandwidth of 800 Hz means the regulator responds quickly to load disturbances, reducing position error during rapid indexing. Overall conversion losses are minimized by an efficiency greater than 95%, so most of the input energy is transferred to the motor rather than dissipated as heat. Continuous shunt regulation at 30 W prevents the intermediate DC bus from exceeding safe limits when the motor regenerates during deceleration.

Mains power is accepted at 230 VAC (+10%, -15%) across three phases and 47-63 Hz, enabling worldwide installation without tap changes. For brief accelerations, it supplies a peak output current of 30 A and a peak mechanical power of 9 kW, giving the drive a 2:1 short-term overload margin relative to its continuous rating. A switching frequency of 5 kHz reduces motor acoustic noise while keeping IGBT losses in check. Power dissipation at full load is 105 W, so cabinet ventilation must remove this heat at operating temperatures from 0 °C to 50 °C. Additional limits include a maximum altitude of 1500 m, storage temperatures down to -55 °C, and a tachometer gradient of 1.0 V/Krpm for precise speed feedback through the Tachsyn processor.