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JKBLD720 Brushless DC Motor Driver

● It can be connected with an external speed display board ZM-BL01, showing
the speed, set drive parameters;
● It has double speed closed current design with low speed torque and
smooth operation;
● It has high speed output with the maximum speed of 10000rpm / min;
● The speed control mode is an external PWM speed and
external potentiometer speed;
● It has have EN, DIR,X1 signal control side;
● It can output FG signals (gate output);
● It can output ALM signals for the user to detect
● It has over-current, overvoltage, under voltage, Hall Sensor phase error, motor stalling and other protection functions;
  • JKBLD720

  • JKONGMOTOR

  • 10 Pcs

Size:
Availability:

Description:

JKBLD720 brushless DC motor driver is our company's latest high-tech product for the field of medium power motor drive. This product uses a large-scale integrated circuit to replace the original hardware. It has higher anti-jamming and fast response ability. It is suitable for all the three-phase brushless DC motors with low voltage DC18V-50V(boards show DC24V-48V) and peak current below 15A. Even if working with large current, it is still in low temperature. It is widely used in knitting equipment, medical equipment, food packaging machinery, power tools and a series of areas of electrical automation and control.



Features:

● It can be connected with an external speed display board ZM-BL01, showing the speed, set drive parameters;

● It has double speed closed current design with low speed torque and smooth operation;

● It has high speed output with the maximum speed of 10000rpm / min;

● The speed control mode is an external PWM speed and external potentiometer speed;

● It has have EN, DIR,X1 signal control side;

● It can output FG signals (gate output);

● It can output ALM signals for the user to detect

● It has over-current, overvoltage, under voltage, Hall Sensor phase error, motor stalling and other protection functions;



Brushless DC Motor Driver Description:

Brand Jkongmotor
Model JKBLD720
Driver Type DC Brushless Motor Driver
DC / AC
DC
Suitable Motor 3-Phase DC Brushless motor
Input Voltage 18VDC - 50VDC 
Output Current Max 15A
Motor speed range
0rpm - 10000rpm


Electrical Specifications:

(1)Environmental Temperature:25℃

Power Supply

DC18V~50V direct current

(Capacity according to motor power selection)


The maximum input current

Not greater than 15 A

 (according to motor and rated load)


The maximum power

The maximum is 2200W (over power motor is strictly prohibited)


Adaptable motor

Adaptable output power ≤500W motor


Insulation resistance

General temperature﹥500MΩ


Insulation strength


General temperature and pressure 0.5KV,1minitute


(2)Environmental Parameter

Cooling method

Natural air cooling (forced air cooling is recommended)


Environment

Condition

Avoid dust, oil mist and corrosive gases

Temperature

0℃~+50℃

Humidity

﹤80%RH,no condensation, no frost

Vibration

﹤0.5G(4.9m/s2 )10Hz-60Hz

(non-continuous operation)

Reserved temperature

-20℃~+65℃

Size

150mmX97.5mmX53mm

Weight


About 0.55Kg


Note: Due to dramatic changes in the temperature of the storage environment, it is easy to form condensation or frost. In this case, the drive should be placed for 12 hours or more. Until the drive temperature and ambient temperature is consistent, it can be on power.


Port Signal Description:

Signal  category

Terminal

Functional Description


Indicator light

POWER

If the green power indicator is lighten, it shows that power is normal.

ALM

If the red status indicator is slow flash, it means waiting; Quick flash means operation; It always lights meaning faults or off-line;

RS232 communication port

TTL

It can be connected with an external speed display board ZM-BL01 to display speed.  ZM-BL01 can also set the drive parameters. Details are shown in ZM-BL01 instructions


Control signal port

+5V1


Control signal power+( inner power output )


VSP

External speed control signal


Control way: By connecting with a potentiometer to change VSP,  then it can complete 0 ~ 100% speed adjustment. The range is 0-5V


X1

Input signal, brake on low level or to GND1, the red light keep off(Brake braking force can be adjusted by customer’s requirement),When X1 is connected with +5V1 or without any port , motor keeps running.

FG

Motor speed pulse output is measuring the frequency of this signal. Then converts it into the actual motor speed.


DIR

Rotary direction is controlled by high and low electrical level, motor forward: connected with GND1, motor reversal (anticlockwise) ;without GND1 or connected with +5V, motor forward (clockwise)


EN

Connected EN with GND1, motor can work(online status);without connected or high electrical lever, motor can not work(offline status and the red light keep working)


ALM


It is signal transfer output. When the power is in danger, the current flow is slow.

GND1

Control signal’s power supply


Hall control port

+5V2


+ motor’s Hall power


HU

Hall Sensor signal HU.

HV

Hall Sensor signal HV.

HW

Hall Sensor signal HW.

GND2

The motor’s Hall power supply





The motor and power

U、V、W

The motor’s three-phase output signal

GND、V+


GND、V+ stand for direct current flow. The input power is DC18V~50V.(boards show DC24V-48V)


Function and method:


Speed mode (VSP/PWM)



1. The external input speed: two external terminals of the external potentiometer(5K-10K) respectively connected to the driver's GND1 and +5 V1 terminal. If the regulator is connected to the VSP end, you can use an external potentiometer to adjust speed. It can also be made by the other control unit’s (such as PLC, microcontroller, etc.) input analog voltage to VSP side (relative to GND1). VSP port  accepts the range of DC 0V ~ +5 V and the corresponding motor speed is 0 ~ rated speed;


2. PWM speed: the PWM’s positive end is connected to the VSP. The negative end connects with GND1. The frequency is 10Hz-300KHz, changing the duty cycle speed.


Brake

(X1)

By control the high and low electrical level between X1 to control the motor status. On low electrical level,X1 stop, when the brake working, the red light off; when X1 is on high electrical level status or without connecting, motor can be allowed to work(Brake braking force can be adjusted by customers requirement)


Speed signal output



(FG)



The drive provides the motor speed pulse signal, which is positive proportion to the motor speed, pulse output way: RPUP 4.7k, open collector output


1. the motor speed (RPM) = F ÷ N× 60


F =  actually measured frequency current on the FG foot by frequency table


N =  Pole logarithm , 2 pole motor, N = 2; 4 pole motor, N = 4


For example: the user selects a 4 pole motor. When the output FG signal is 200Hz, the motor speed = 200 ÷4× 60 = 3000 r / min.



The motor positive and negative signal(DIR)



By controlling high low-level of DIR to control the motor’s positive and reverse turn.


Noticed: Swerved suddenly when motor is at high speed, to avoid the damage of motor and equipment , when DIR get the transform single , we must  make motor stop running for 2s, then change the motor direction ,improve speed to the set value.



Start/Stop signal(EN)



By controlling high low-level of EN to control the motor’s stop and run. When EN is low level, motor run; when EN is high level or non-connect ,motor stop working, red light keep working. Power consumption is less than or equal to20MA.


Fault Value : short circuit with EN and GND1.  


Alarm signal (ALM)

Normal output is 5V. When there is over-voltage, over-current, wrong Hall signal or the stop in the motor, the signal is 0V,the red light keep working.






Digital BLDC Motor Driver Dimension :





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

 JKBLD720 for 60/80/86 BLS Series Motor Driver.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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