MDL-BLDC;MDL-BLDC-B;中文规格书,Datasheet资料

Brushless DC (BLDC) Motor

Control Board with Ethernet and CAN

Ordering Information

Order No.

MDL-BLDC

Description

Brushless DC Motor Control Board Only

Stellaris® Brushless DC (BLDC) Motor Control Reference Design Kit

(includes MDL-BLDC board)

RDK-BLDC

Contents

General Description........................................ 1

Overview.................................................................... 2General Features....................................................... 2Communications Features......................................... 2Board Dimensions..................................................... 2

Operational Specifications............................ 3

Maximum Ratings...................................................... 4Wiring......................................................................... 4

Configurable Parameters............................... 5Additional Information . . . . . . . . . . . . . . . . . 5

Figure 1.BLDC Motor Control Board

General Description

The brushless DC (BLDC) motor control board is a four-quadrant motor control board for three-phase BLDC motors rated at up to 36V (see Figure 1). Key features include complete CAN and Ethernet communications interfaces, the powerful, 32-bit Stellaris® LM3S8971 microcontroller, and sophisticated software to optimally control a range of motors in diverse applications.

10/100 Ethernet connects the BLDC module to an array of networks—from dedicated

industrial networks to the internet. The standard BLDC module includes the Stellaris motor control and configuration (MCC) protocol. This protocol can be replaced with any industry-standard protocol.

First-time users should purchase a complete BLDC reference design kit (RDK) which

includes the control board, cables, configuration software (GUI), a documentation CD, and a sample motor. After evaluating the BLDC module, users may choose to either customize the design or use the BLDC board without modification. Refer to the RDK-BLDC User's

Guide (available for download from ) for complete technical details on using and customizing the motor control board.

Overview

The MDL-BLDC control board provides the following features: Controls three-phase BLDC motors up to 36V 500W 10/100 Ethernet and CAN interfaces Four-quadrant operation

Hall Effect, Quadrature, and Sensorless operation modes

Extensive configuration options using Windows graphical user interface (GUI) Easy to customize—full source code and design files available

General Features

On-board braking circuit

Incremental quadrature encoder input Analog and digital control inputs Test mode push-button

Status LEDs indicate Power, Run, and Fault conditions Optional power-managed fan for forced-air cooling Screw terminals for all power and signal wiring

Communications Features

10/100 Ethernet –Auto MDI/MDIX

–Traffic and link indicator LEDs

–MCC protocol supports multiple boards on the same network CAN bus

–Support up to 1Mbps

–On-board selectable CAN terminator Serial port

–Header provides TXD and RXD signals–CMOS signal levels

–MCC communication protocol–115.2kbaud, 8 bit, no parity, 1 stop bit

Board Dimensions

Figure 2 on page3 shows the board dimensions for the MDL-BLDC motor control board.

Operational Specifications

Table 1 shows the operating parameters for the MDL-BLDC motor control board.

Table 1.MDL-BLDC Operating Specifications

Parameter Name

Min

Nom

Max

Unit

Power Supply12–36VSwitching Frequency81620kHzSpeed Rangea

1–60,000RPMContinuous Output Currentb––14AContinuous Output Currentc––10AOperating Temperature Range0–70°CStorage Temperature Range-25–85°CSupply Current – Motor Stoppedd–13–mAAnalog Input Range

0–5VDigital Input Low-Level Input Voltage-0.3–1.3VDigital Input High-Level Input Voltage2.0–5.0VDigital Input Pull-Up Resistor–6.8–kΩHall Sensor Supply (at 5.0V)––30mABrake Resistor Continuous Power ––10WBrake Resistor Peak Power (5s)

–

–

50

W

a.Actual range depends on motor type

b.At 25°C ambientc.At 40°C ambientd.With 24V supply

Maximum Ratings

The maximum ratings are the limits to which the device can be subjected without causing permanent damage (see Table 2).

Table 2.MDL-BLDC Maximum Ratings

Parameter Name

Min

10––-0.3

Nom

––––

Max

60305005.5

Unit

VA WV

DC Bus Voltage Range

Peak Output Current for 2 secondsContinuous Output PowerControl Signal Input Rangea

a.Applies to Hall Effect sensor, analog, and digital inputs

Wiring

The MDL-BLDC motor control board is controlled by one of the three communication interfaces, or by a simple analog control voltage. Figure 3 shows power, motor, and

peripheral connections to the main terminal block. Connections to the Hall sensors, analog speed control potentiometer, and quadrature/incremental encoder are all optional.

Figure 3.Terminal Wiring Diagram

Configurable Parameters

The follow list shows just a few of the parameters that can be configured by the GUI or directly using the MCC protocol: Motor poles Speed range

Motor current and voltage Acceleration and deceleration rate

Control method: Hall effect sensors or back-EMF Trapezoidal (BLDC) or sinusoidal (PMAC, BLDC) control Control-loop coefficients

Additional Information

The following documents are available for download at : RDK-BLDC User’s Manual, Publication Number RDK-BLDC-UM

RDK-BLDC Quickstart

Important Notice

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