LMBLD750 750W Open And Closed Loop DC Brushless Driver

LMBLD750 DC brushless driver is suitable for speed regulation of three-phase DC brushless motors with power below 750W and voltage 48V, and it can provide external potentiometer speed regulation, external analog voltage speed regulation, and upper computer (PLC, microcontroller, etc.) PWM speed regulation. At the same time the driver has a large torque start, fast start and braking, forward and reverse switching, manual and automatic speed control. It is suitable for DC brushless motors with voltage from 18V to 52V and power less than 750W.

● Acceleration/deceleration time setting
● Motor pole pair selection
● Open/closed loop control
● Built-in potentiometer RV speed control
● External potentiometer speed control
● External analog signal speed control
● PWM speed control
● Pulse frequency speed control
● Maximum current output setting
● Motor blocking torque maintenance
● Alarm indication
● Re-starting

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Model:
LMBLD750
Brand:
LeanMotor
MOQ:
10 Pcs

Description:

The LMBLD750 BLDC motor drive is a high performance, cost-effective 3phase BLDC motor drive, which can provide power output Max 750VA.The design is based on advanced DSP technology and feature high torque, low noise, low vibration, PID speed loop, PID current loop, over current protection, over load protection and a combined use of manual speed adjustment and automatic speed adjustment.

Features：

Acc/Dec time setting
Alarm signal
Internal potentiometer RV speed control
External potentiometer speed setting
External analog signal speed setting
Pulse frequency speed control
Motor pole number selection
Open/closed loop control
Maximum current output setting
Motor stall torque maintenance
Restart

Brushless DC Motor Driver Description：

Brand	Leanmotor
Model	LMBLD750
Driver Type	DC Brushless Motor Driver
DC / AC	DC
Suitable Motor	3-Phase DC Brushless motor
Input Voltage	18VDC - 52VDC
Output Current	Max 25A
Hall signal voltage	5V
Hall drive current	20mA
Motor speed range	0rpm - 20000rpm
External potentiometer	10kΩ
Control method	Open and closed loop control
JKBLD750 DC brushless driver is suitable for speed regulation of three-phase DC brushless motors with power below 750W and voltage 48V, and it can provide external potentiometer speed regulation, external analog voltage speed regulation, and upper computer (PLC, microcontroller, etc.) PWM speed regulation. At the same time the driver has a large torque start, fast start and braking, forward and reverse switching, manual and automatic speed control. It is suitable for DC brushless motors with voltage from 18V to 52V and power less than 750W.

Electrical Specifications

Parameter	Min	Typical	Max	Unit
Voltage Input DC	18	48	52	V
Output current	-	-	25	A
Motor speed range	0	-	20000	RPM
Hall signal voltage	-	-	5	V
Hall drive current	-	20	-	MA
External potentiometer	-	10	-	KΩ

Environmental indicators:

Heat Sinking Method	Natural cooling or forced cooling
Atmosphere	Avoid dust, oil stains, and corrosive gases
Operating Temperature	+10℃ ～ +50℃
Ambient Humidity	80% RH (non-condensing)
Vibration Resistance	5.7m/s² maximum
Storage Temperature	0℃ ～ +60℃

Port Signal Description:

Signal category	Terminal	Functional Description
Control signal	PUL+	Pulse frequency input positive pole
	PUL-	Pulse frequency input negative electrode.
	BRK	When the BRK terminal and COM terminal are disconnected or high-level input, the motor brake stops, and when short circuited or low-level input, the motor runs.
	EN	When the EN terminal and COM terminal are disconnected or high-level input, the motor slowly stops, and when short circuited or low-level input, the motor runs.
	F/R	When the F/R terminal and COM terminal are disconnected or high-level input, the motor rotates forward, and when short circuited or low-level input, the motor reverses.
	COM	Common port (OV reference level).
	SV	① External potentiometer speed setting input; ② External analog voltage input terminal ③ PWM speed setting input
	VCC	External potentiometer interface
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 Power Supply -
Motor connection	W	Motor line W phase
	V	Motor line V phase
	U	Motor line U phase
Power connection	DC+	Power supply positive electrode (25-52VDC)
Power connection	DC-	Power supply negative electrode
Output signal	SPEED	Output a pulse frequency that matches the operating speed of the motor. The motor speed can be calculated using SPEED-OUT. The calculation formula is: N (rpm)=(F/P) × 60/3 F: Output pulse frequency (Hz); P: Number of motor poles; N: Motor speed
Output signal	ALM	The output signal of the motor or drive control fault signal is normally 5V, and in the event of a fault, it is 0V.