BLD series driver BLD-120A
Bldc speed control

BLD series driver BLD-120A

Features:

12v,24v bldc motor less than 120w
Acc/Dec time setting
Max output current P-sv setting, bldc current control
Restart
Alam signal
4 Speed regulation modes

Specification

BLD-120A BLDC motor driver is for speed control of bldc motor 120W and below.

Electrical properties

Driver parameter	Min Value	Typical Value	Max Value
Voltage input DC (V)	12	24	30
Current outpu(A)	–	–	8
Motor speed range(rpm)	0		20000
Hall signal voltage(V)	–	–	5
Hall drive current (mA)	–	20	–
External potentiometer(KQ)	–	10	–

Environmental indicators

Heat Sinking Method	Natural cooling or fan-forced cooling
Atmosphere	Avoid dust, oily mist and corrosive air
Operating Temperature	0 〜+40 °C
Ambient Humidity	90% or less (non-condensing)
Vibration Resistance	5.7m/s² maximum
Storage Temperature	0 〜+50°C

Bldc driver dimension

Interface and wiring

bldc motor controller wiring diagram

Signal category	Terminal	Functional Description
Control signal	BRK	Motor brake stop control signal; BRK and COM connect in default, motor brake stops when BRK and COM disconnect.
	EN	Stop signal terminal; EN connects COM, motor runs, otherwise motor stops.
	F/R	Motor direction control terminal; F/R and COM disconnect, motor will rotates clockwise, and otherwise, motor will rotate anticlockwise.l
	COM	Common port(OV)
	SV	① External potentiometer speed setting input;② External analog voltage input terminal ③ PWM speed setting input
Hall signal	REF+	Hall sensor signal power supply+
	HU	Hall sensor signal Hu
	HV	Hall sensor signal Hv
	HW	Hall sensor signal Hw
	REF-	Hall sensor signal-
Motor connection	W	Motor line W phase
	V	Motor line V phase
	u	Motor line U phase
Power connection	DC+	Power supply positive electrode (12-30VDC)
Power connection	DC-	Power supply negative electrode (Hall sensor negative electrode)

Speed regulation

BLD-120 has 4 speed control modes as follows.

1. Via built-in potentiometer

Motor speed is increase when RV knob is rotated clockwise, when anticlockwise, motor speed decreases.

2. Via external potentiometer

Use a suitable potentiometer with a resistance value of 10KQ; when connecting the external potentiometer, the middle terminal connects to SV the other two terminals connect to REF+ and COM.

Notice: RV should be rotated anticlockwise to limit position. Notice the order of connection of potentiometer.

3.External analog signal 0-5VDC

Relational graph between the analog signal voltage and the motor speed (no load).

the analog signal voltage can be 0 ~ 5VDC; when the voltage is 0.2VDC, the motor speed reaches 4% of fastest speed; when the voltage is 5 VDC, the motor speed reaches maximum value, which depends on the motor specification and power voltage.

4.BLDC PWM control

Relational graph between duty ratio and the motor speed (no load).

When duty ratio of pulse is 4%, motor speed is 4% of max speed, when duty ratio is 100%, motor reaches max speed. The max speed also depends on the motor specification and power voltage.

Function setting

1.ACC/DEC time setting

Set acceleration time and deceleration time by ACC/ DED, range is 0.3-15s. Acceleration time is time needed from 0 to rated speed. Deceleration time is time needed from rated speed to 0.

2.Peak current setting

Use P-sv to set the output peak current. When load is increased suddenly, the output current will be limited by the setting value, which reduces motor speed and protects the motor. Current setting ranges: 1.6-8A. Please set as the right.

3.Stall current setting

When motor stalls, the output current will be the set max value, which protects driver and motor from damage.

4.Stalling torque holding

When motor stalls, torque will be kept in short time.This feature can’t be used for brake stalling.

5.Restart function

When stalling occurs, driver stops working, after 5s, it restarts. If fault occurs again, alarm signal will be sent out and driver stop working.

6.Motor start and stop

EN and COM terminal is short circuit in default. When power is on, driver will drive motor automatically. If EN disconnects with COM, motor stops.
To add a switch or PLC between COM and EN can control the motor start and stop.

7.Brake

BRK and COM terminal disconnect in default. Motor will brake stop if BRK and COM are in short circuit.
To add a switch or PLC between COM and BRK can control the motor start and stop.

8.Direction control

F/R and COM disconnect in default, when power is on, motor will start to run clockwise.
Connect F/R and COM, the motor will rotate anticlockwise, otherwise, the motor will rotate clockwise

Packing and delivery time

Recommended BLDC motors

Optical axis motor

12V,24V BLDC motors less than 120w

Planetary reduction motor

12v, 24v, <120w bldc motor with gear box

Worm gear reduction motor

12v, 24v <120w bldc motor with worm gear

Contacts

You can contact us using the form on the right.

One of our qualified staff members will get back to you as soon as possible!

Address: 4/F, Block B, RuiLian Zhenxing Industrial Park, Wanjiang District, Dongguan City, Guangdong Province, China

Tel: +86-0769-22327568

Fax: +86-0769-22327568

Email: inquiry@ican-tech.com

Skype: icantech0099