BLD series driver BLD-1500RA
48v 1500w bldc motor controller

BLD-1500RA motor controller for BLDC motor

Features:

48v 1500w bldc motor controller
ACC/DEC time setting
Phase current limiting adjust
Motor speed setting/ close loop setting/pole pairs setting
Multiple speed control
Speed of revolution tolerance is ±0.01%
Alarm signal
Supporting Modbus communication and suitable for PC control by user.
Connecting Resistance braking

Specification

BLD1500RA brush less DC motor driver is independently developed by Dongguan ICAN Technology Co., Ltd. It is a high-performance and low-cost brushless driver for 1500W low-voltage brushless DC motor. The DC brushless driver supports Modbus communication protocol and motor deceleration braking function, providing users with more flexible choices in practical applications.

Electrical parameters

Driver parameter	Min Value	Typical Value	Max value	Unit
Current input (A)	–	40	–	A
Voltage input DC(V)	20	48	50	V
Current limit(A)	22	–	82	A
Output Power(W)	–	1500	1500	W
Apply speed	–	3000	–	rpm
The parameters of this table are suitable for normal temperature 25 °C

Environmental indicators

Heat sinking Method	Natural cooling or fan-forced cooling
Used occasion	Avoid dust,oily mist and corrosive air
Operating Temperature	-20C~+40C
Storage Temperature	-30C~+50C
Dielectric Strength	500VAC

Interface and Wiring

Bldc motor driver circuit diagram

Port signal description

Signal category	Terminal	Functional description
Power connection	VDC	DC Power supply positive electrode
Power connection	GND	DC Power supply negative electrode
Motor connection	U	Motor line U phase
	V	Motor line V phase
	W	Motor line W phase
Motor Hall signal	+5V	BLDC Hall signal power positive pole
	HU	Hall sensor signal HU
	HV	Hall sensor signal HV
	HW	Hall sensor signal HW
	GND	BLDC Hall signal power negative electrode
Control signal	SV	External speed setting signal input terminal;
	EN	Motor stop signal port: When EN and GND disconnect, motor stops slowly while when they connect, motor runs.
	F/R	Motor direction control terminal: F/R and GND disconnect, motor will rotate clockwise, and otherwise, motor will rotate anticlockwise.
	BRK	Motor brake stop control port; when BRK and GND disconnect, motor run, otherwise, the motor stop
	GND	Control signal grounding screw (common port)
Output signal (connect Pull up resistance 2K-20K )	SPEED	Pulse frequency output corresponded with running speed. Speed can be figured out according N(rpm)= (F/P)×10 F:Output pulse frequency(Hz)；P:Motor pole pairs；N:Motor speed For example: Motor has 4 pole pairs F=500Hz N(rpm)=(500/4)×10=1250
Output signal (connect Pull up resistance 2K-20K )	ALM	Alarm signal output port. When fault occurs, the voltage changes to 0V from 5V.
Built in control signal	ACC	Acceleration and deceleration time adjustment (Factory default minimum)
	PCL	Phase line current limit adjustment (Factory default maximum)
	SW	Pole pairs selection and self-learn(Factory default SW1=OFF,SW2=OFF)
	Connected to braking resistance	Brake resistance connection port
	RS485	MODBUS communication connection
	RV	Built in potentiometer speed regulation
	Fan	Two built-in fans are temperature controlled fans (starting temperature 70 C)

Speed regulation

Bld-1500RA have speed control methods as following.

1 Via built-in potentiometer

Motor speed is increase when RV knobs is rotated clockwise, when anticlockwise, motor speed decreases. If user use other speed modes, RV should be rotated anticlockwise to limit position.

2 Via external potentiometer

Use a suitable potentiometer with a resistance value of 10kR; When connect external potentiometer, the middle terminal connects to SV, the other two terminals connect to +5V and GND
① RV should be rotated anticlockwise to limit position.
② Notice the connection sequence of the potentiometer.

3 Via external analog signal 0-5V

When use external analog signal, the built-in potentiometer RV must be OFF (RV should be rotated anticlockwise to limit position). Be sure to select the correct number of poles.
External analog speed control linearity test curve as below

4 Communication signal RS485

The communication function of the driver adopts Modbus protocol and conforms to the national standard GB / T 19582.1-2008. The two-wire serial link communication based on RS485 is used. The physical interface adopts RJ45. Three wires need to be connected:,B, A and GND (wiring is prohibited for other terminals in this RJ45 interface). The communication address is set through communication. The 120 Ω terminal matches the resistance and needs to be externally connected by the user.

Manual download

Driver series	Item(Model number)	Peak Current(A)	Rated Current(A)	Voltage(V)	Matched Motor	Net Weight(g)	Dimension(mm)	Communication port
BLD series drivers	BLD-70B	6	3	VDC12-30	≤70w	130	9456.521	-
	BLD-120A	16	8	VDC12-30	≤125w	170	966024.5	-
	BLD-120B	12	6	VDC12-30	≤120w	170	966024.5	-
	BLD-300B	35	14	VDC12-56	≤300w	340	1438033	-
	BLD-300R	20.6	_	VDC15-62V	≤300w	_	14390.132.5	RS485
	BLDH-400R	5.5	_	VAC110-250	≤400w	_	1519852.5	RS485
	BLD-750	45	25	VDC18-52	≤750w	600	15197.552	-
	BLDH-750R	9	_	VAC110-250	≤750w	_	1706597	RS485
	BLD-1500RA	82	40	VDC20-50V	≤1500w	_	_	-
	BLDH-1500RA	13	-	VAC110-250	≤1500w	-	203147.281	RS-485