SLBLDC-MTR-RD Silicon Labs

SENSORLESS-BLDC-MOTOR-RD SENSORLESS BLDC MOTOR REFERENCE DESIGN KIT USERS GUIDE 1. Kit Contents The Sensorless BLDC Motor Reference Design Kit contains the following items: Sensorless BLDC Motor Reference Design Board Brushless DC (BLDC) Motor Universal AC to 12 V DC Power Adapter USB Debug Adapter 2 USB Cables Reference Design Kit Tools & Documentation CD 2. Kit Overview This reference design demonstrates sensorless control of a BLDC motor system using the C8051F310. The reference design provides for both stand-alone demonstration operation and a simple user interface over USB. The reference design may also be used as a platform for Sensorless BLDC motor code development. This User s Guide provides a step-by-step guide for getting your system up and running. Refer to the Application Note AN208: Sensorless BLDC Reference Design for complete documentation of the Sensorless BLDC Reference Design. Figure 1. Sensorless BLDC Reference Design Board Rev. 0.3 12/07 Copyright 2007 by Silicon Laboratories SENSORLESS-BLDC-MOTOR-RDSENSORLESS-BLDC-MOTOR-RD 3. Sensorless Motor Reference Design Demonstration The Sensorless BLDC Motor Reference Design includes everything you need to set up a Sensorless BLDC motor demonstration. Connect the BLDC motor to the Sensorless BLDC motor control board following the wiring chart for the Anaheim Automation BLY171S-24V-4000 motor as shown in Table 1. Table 1. BLDC Motor Wiring Diagram Color Location Yellow A Red B Black C Connect the 12 V universal ac/dc power adapter to the dc supply (P1) on the Sensorless BLDC Motor Reference Design Board. Rotate the SPEED knob fully clockwise. Press the START button on the Sensorless BLDC Motor Reference Design Board. The motor will start running. Notice that the motor will first align and then smoothly speed up to the minimum closed loop running speed. Rotate the knob counter clockwise to adjust the speed of the motor. Press the STOP button and the motor will stop spinning. Sensorless BLDC Motor A B STOP USB C Sensorless START BLDC Motor Drive DEBUG SPEED AC Adapter Figure 2. Sensorless BLDC Motor Reference Design Demonstration Setup 2 Rev. 0.3 RESET