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Brushless DC Motor Driver BLD-750 18-52VDC 750W

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Description

48V Brushless DC Motor Driver BLD-750 18-52VDC 750W BLDC Motor controller 

 

BLD-750 (6)

 

Features

 

 

 HALL angle: 120°  

Five speed regulation modes

RS232 communication protocol

SPEED/ALARM signal output(O.C.) 

High efficient, slowly temperature rise and compact size

Excellent velocity control and wide speed range of 0~20000rpm

PID closed-loop control and strong over-current/voltage, undervoltage self-protection  

  

 

 

Electrical indexes

 

Driver Parameters

Minimum value

Rated value

Maximum value

unit

Output current

-

-

25

A

Input voltage

18

48

52

VDC

Hall drive current

-

20

-

mA

Hall signal voltage

-

-

5

V

Applicable motor speed

0

-

20000

RPM

 

 

Environmental indexes

 

Environmental factors

Environmental indexes

Use occasion

No dust, oil stain and corrosive gas

Operating temperature

10℃~+50℃

Environment humidity

80%RH (no condensation)

Vibration

5.7m/s2 Max

Storage temperature

0℃~+60℃

Cooling mode

Natural cooling or forced cooling

 

 

Driver interface and motor connection

 

 

BLD750 Driver interface and motor connection

 

 

 

 

 

 Terminals  

Function

SV

1.External potentiometer; 2.Input analog signal; 3.PWM pulse width.

COM

Common port (0V reference level)

F/R

Motor rotation direction control(CW/CCW). High level input the motor will rotates clockwise, low level input or when F/R and COM are short circuit, the motor rotate anticlockwise

EN

High level input the motor stops, low level input or when EN and COM are short circuit, the motor runs

BRK

The motor brake stops when a high level is added or port suspension; the motor runs when the low level is added or EN and BRK are connected

ALM

The default output signal is 5V under normal circumstances; the level is 0V when malfunction occurs

SPEED

Output pulse frequency signal(OC). The motor speed can be calculated through SPEED.

  

  

 

 

 

Four speed regulation modes

 

Build-in potentiometer RV

 

 Rotate the RV knobs clockwise until a “click” sound, the motor starts to run and accelerateMotor speed will decrease if anticlockwiseWhen it gets to a limited position, the motor stops

 

BLD750 Bulit-in potentiometer RV

 

 

 

  

 

External potentiometer

 

Use a suitable potentiometer with a resistance value of 10KΩ, connect middle terminal with SV terminaland the other two terminals are respectively connected with VCC terminal and COM terminal.

 

 

 

BLD750 External potentiometer

 

 

 

Input analog signal (0-5V)

 

Voltage and motor speed relational diagram(unloaded)

 

 

 

 

BLD750 Input analog signal 0-5V

 

 

 

 

Input analog signal (0-10V)

 

Voltage and motor speed relational diagram(unloaded)

 

BLD750 Input analog signal 0-10V

 

 

 

 

Speed control of pulse frequency

 

pulse frequency and motor speed relatoinal diagram (unloaded)

 

BLD750 Speed control of pulse frequency

 

 

 

 

Quick break

 

When COM and BRK are closed circuit, the motor will be quick brake.

 

BLD750 Quick brake

 

 

 

 

 

CW/CCW rotation

 

Connect F/R and COM, the motor will rotate anticlockwise, disconnect it, the motor will rotate clockwise. To control the direction of the motor, a switch can be added between F/R and COM.

 

BLD750 CWCCW rotation

 

 

 

 

 

PID Control and ultimate speed setting

 

 

SW2

ON

PID closed-loop control,
speed feedback control

                     PID

OFF

PID open-loop control

 

 

BLD750 PID control and ultimate speed setting

 

 

 

 

Peak current setting

 

Equipped with a motor protection function, the driver provides options to set desired current number in the P-sv knob to avoid over-current for motor. Please note that the random error is ±10% . The setting should be matched with motor rated current.

 

 

 

BLD750 Peak current setting

 

 

 

Mechanical Dimension

 

 

 

 

BLD750 mechanical dimension