Product Description:

The SC933AN-050-01 is a servo drive produced by Pacific Scientific as part of the SC900 Servo Drives series. It is installed between a motion controller and a three-phase brushless servomotor to regulate torque, speed, and position in automated machinery. By converting low-power command data into regulated motor currents, the unit provides closed-loop control that keeps axes synchronized during assembly, packaging, and material-handling tasks. That control role makes it suitable for coordinated motion systems that must respond predictably to changing load and speed demands.

During steady operation at 25 °C with natural convection, the drive delivers a continuous output current of 7.5 A, which is the maximum motor phase current it can supply continuously without thermal derating. Under the same conditions and with a 240 V three-phase supply, it supports a continuous output power of 2.2 kW, representing the electrical power available to the motor during sustained operation. The power stage operates at 96% efficiency, so only a small portion of the incoming energy is dissipated as heat inside the enclosure. For acceleration and other transient events, the current can rise to a peak of 15.0 A, and short-term mechanical power can reach 4.5 kW. These operating limits help the drive handle brief demand increases while maintaining controlled motor performance.

The command interface accepts analog velocity loops, incremental digital pulses, or serial setpoints, while feedback and diagnostics use RS-232/485 serial links. This gives the drive flexibility when it is integrated with different host control architectures and supervisory systems. Motor matching is supported by an inductance range from 2.0 mH to 2 H, allowing the same platform to operate with low-inductance high-bandwidth motors as well as higher-inductance torque motors. Thermal management relies on a fanless, convection-cooled chassis, which eliminates moving parts in the cooling path and reduces dependence on forced-air circulation. The standard software set supports the common SC900 communication and tuning functions.