DESCRIPTION
The OM9391SP is a DSP-based motor controller for three-phase AC Motors, such as the Permanent Magnet Synchronous Motor (PMSM) or the AC Induction Motor (ACIM). The controller is designed to improve system integration, efficiency, flexibility, and reliability while reducing the overall system cost. The OM9391SP can be configured for trapezoidal commutation via Hall effect sensor feedback. In this configuration, the Hall effect sensor outputs provide discrete absolute rotor position for commutation. The Hall effect sensor outputs are fed into the control port, level shifted onboard from 15V to 5V, then fed directly into the DSP. Based on this information, velocity is determined. Alternatively, the OM9391SP can be configured for sinusoidal or trapezoidal commutation via sensorless control. Consult the factory for details.

FEATURES / BENEFITS
• Embedded Motor Control DSP improves system integration and flexibility
• 15A average phase current with 325V maximum bus voltage
• Hall Effect sensor based or sensorless control for improved reliability
• Logic supplies (+15V/+5V) generated onboard, eliminating external parts
• Serial port for isolated RS-232 interface allows system level control
• Direction and Velocity control
• Rugged plastic module for high reliability applications
• Low impedance bus terminal construction

APPLICATIONS
• Fans
• Pumps
• Compressors
• Fin Actuators
• Braking Systems