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Home / Products Centre / Motor Drivers / Brushless Motor Driver / JKBLD750 750W Open and Closed Loop DC Brushless Driver

JKBLD750 750W Open and Closed Loop DC Brushless Driver

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.

 

● 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
  • JKBLD750

  • JKONGMOTOR

  • 10 Pcs

Size:
Availability:

Description:

  The JKBLD750 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 Jkongmotor
Model JKBLD750
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 -


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)
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

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.



Digital BLDC Motor Driver Dimension :JKBLD750



60/80/86 BLS Series BLDC Motor Driver Manual:

JKBLD750 for 60/80/86 BLS Series BLDC Motor Manual.pdf




1, Q: The motor does not turn and no holding torque:

     A: ① check whether the power line is connected to the wrong voltage is too low, need to increase the voltage or correct the power line

         ② check whether the motor wiring is correct, if not correct motor wiring. Check if the motor wiring is correct, if not, correct the motor wiring.

         ③ Whether the enable signal is valid, resulting in the motor does not work.

         ④ Is the subdividing parameter correct?

         ⑤ Is the current parameter correct?


2、Q:Motor does not rotate but has holding torque:

      A: ① The phase sequence of motor wires is wrong, need to swap any two wires.

          ② Pulse signal input is wrong, need to check the pulse wiring.


3、Q: The motor torque is too small:

      A: ① Phase current setting is too small, need to set the phase current corresponding to the motor.

          ② acceleration is too fast, reduce the acceleration value

          ③ motor blocking, need to rule out mechanical problems

          ④ drive and motor mismatch, need to replace the appropriate drive


4、Q:Motor steering error:

      A: ① motor line phase sequence is wrong, need to swap any two wires

          ② motor line has a broken circuit, check and connect the right


5、Q:The alarm indicator light is on:

     A: ① Is the motor wire connected incorrectly

         ② Whether there is over-voltage and under-voltage conditions

         ③ Motor or driver is damaged


6、Q:Motor acceleration blocking:

     A: ① short acceleration time

         ② motor torque is too small

         ③ Low voltage or current


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