SL-MTI's DSP based controllers provide customers with versatile solutions for their motor control needs. With a PC GUI program supplied with the controller, customers can change motor operation modes and controller parameters to match their specific requirements.

DSP controllers run in five modes:

	•	Speed control for a BLDC motor with or without Hall sensors (The controller automatically detects the presence or absence of Hall sensors, and selects a control scheme accordingly - hence the origin of the unique terms "sensorred" and "sensorless".)
	•	Speed control for a BLDC motor with or without Hall sensors (The controller automatically detects the presence or absence of Hall sensors, and selects a control scheme accordingly - hence the origin of the unique terms "sensorred" and "sensorless".)
	•	Position control for a BLDC motor with both Hall sensors and an encoder
	•	Speed control for a BLDC motor with a resolver
	•	Position control for a BLDC motor with a resolver

Standard DC supply voltages range from 12 V to 48 V. As an option, 60 V can be provided. In the future, supply voltage ranges of 5 to 15 VDC, and 115 VAC will be available.

Continuous output current ratings are typically in the area of 5, 10, and 20 Amperes. Other ratings may be available upon request.

DSP controllers can run as standalone units by taking speed commands from on-board or remote potentiometers, or these controllers can operate as system components. When operating as a system component, the controller takes control commands from one of the following channels:

	•	RS232 serial port
	•	CAN (controller area network) bus
	•	industry standard 0 ~ 10 Volt analog input
	•	industry standard 4 ~ 20 mA analog input

The default PWM frequency is 20 KHz. This can be changed through the GUI program. The maximum motor frequency for sensorless control is 1000 Hz (a speed of 30,000 RPM for a four pole motor). This maximum frequency will be increased in the future.