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Home / Products Centre / Motor Drivers / Stepper Motor Driver / JKD7208S Digital Stepper Driver 0.1A - 7.2A DC24V - 75V for Nema 17-34 Stepper Motor

JKD7208S Digital Stepper Driver 0.1A - 7.2A DC24V - 75V for Nema 17-34 Stepper Motor

Micro Stepper Motor Driver:
● New 32-bit DSP technology
● Ultra-low vibration noise
● Built-in high subdivision
● Automatic parameter adjustment function when power on
● Variable current control reduces
the heating of the motor
● The current automatically halve at rest
● Can drive two phase stepping motors of 4, 6, 8 lines
● Optical isolation differential signal input
● Built-in high subdivision
● The pulse response frequency can reach to 500KHz(Factory default 200KHz)
● Subdivision setting range is between 200 to 51200
● Has the protection function of overpressure, underpressure and overcurrent
  • JKD7208S

  • JKONGMOTOR

  • 10 Pcs

Availability:

Description:

JKD7208S is a new digital stepper motor driver by JKONGMOTOR. It adopts the latest 32-bit DSP digital processing technology. The drive control algorithm adopts advanced variable current technology and advanced frequency conversion technology. The driver has small heating, small motor vibration and stable operation. Users can set any subdivision within 200 ~ 51200 and any current value in the rated current to meet the application needs in most occasions. Thanks to the built-in micro-subdivision technology, the subdivision effect can be achieved even under the condition of low subdivision. The operation is smooth and the noise is ultra-small under low, medium and high speed. The driver integrates the parameter auto-adjust function, which can automatically generate optimal operating parameters for different motors to maximize the performance of the motor.

Application

Suitable for all kinds of small and medium sized automation equipment and instruments, such as: engraving machine, marking machine, cutting machine, laser lighting, plotter, cnc machine, automatic assembly equipment, etc. It use very well in the equipment that user expects small noise, and high peed.


JKD7208S Driver Features:

  • New 32-bit DSP technology

  • Ultra-low vibration noise

  • Built-in high subdivision

  • Automatic parameter adjustment function when power on

  • Variable current control reduces

  • the heating of the motor

  • The current automatically halve at rest

  • Can drive two phase stepping motors of 4, 6, 8 lines

  • Optical isolation differential signal input

  • The pulse response frequency can reach to 500KHz(Factory default 200KHz)

  • The current setting is convenient and can choose between 0.1 to 7.2A

  • Subdivision setting range is between 200 to 51200

  • Has the protection function of overpressure, underpressure and overcurrent


Hybrid Stepper Motor Driver Description:

Brand Jkongmotor
Model JKD7208S
Driver Type Stepper Driver
DC / AC DC
Input Voltage 24V - 75V
Output Current 0.1A - 7.2A
Subdivide Setting 8 (400 - 40000)
Storage Environment -20 - 80℃



Using environment and parameters

Cooling method Natural cooling or forced air cooling
Using environment occasion Can not be placed next to other heating equipment, should avoid dust, oil mist, corrosive gas, too big humidity and strong vibration place, prohibit to have combustible gas and conductive dust
temperature -5℃ ~ +50℃
humidity 40 ~ 90%RH
vibration 5.9m/s2MAX
Storage temperature -20℃~80℃
Using altitude Below 1000 metres
Weight About  280 g


Electrical indicators

Instruction

JKD7208S

Minimum

Typical

Maximum

Unit

The output current

0.1
- 7.2 A

Input voltage

24 48 75 VDC

Control signal input current

6 10 16 mA

Control signal interface 

4.5 5 28 VDC


Interface Signal Description:

Pins Functions
PUL Pulse signal
DIR Direction signal
VCC Pulse direction enable power supply
ENA- Enable signal
A+ A phase of stepper motor
A- A phase of stepper motor
B+ phase of stepper motor
B- phase of stepper motor
GND
DC power input:0V
VDC DC power output:18 ~30V


Current setting

1)Working (dynamic) current setting



Output peak current


Output average current 

SW1 SW2 SW3

Current self-setting

Default[2.0A]

ON ON ON

When SW1, SW2, SW3 are set to off off off, the required current can be set by PC software,max 7.2 A, resolution 0.1 A. Default current is 2 A without setting

3.08A 2.57A OFF ON ON
3.77A 3.14A ON OFF ON
4.45A

3.71A

OFF OFF ON

5.14A

4.28A ON ON OFF

5.83A

4.86A

OFF ON OFF

6.52A

5.43A

ON OFF OFF

7.20A

6.00A

OFF OFF OFF


2) Static current setting

Static current can set by SW4 DIP switch settings, off means the static current is set to half of dynamic current, on means static current and dynamic current is the same. SW4 should be set to off for general use, can reduce the heating of the motor and the driver. About 400ms after the pulse train stopped it will automatically reduced to half current (60% of the actual value), the heat will reduced to 30% theoretically .


2. Subdivision setting


Step/Rpm
SW5 SW6 SW7 SW8
400 ON ON ON ON
800 OFF ON ON ON
1600 ON OFF ON ON
3200 OFF OFF ON ON
6400 ON ON OFF ON
12800 OFF ON OFF ON
25600 ON OFF OFF ON
51200 OFF OFF OFF ON
1000
ON ON ON OFF
2000 OFF ON ON OFF
4000 ON OFF ON OFF
5000 OFF OFF ON OFF
8000 ON ON OFF OFF
10000 OFF ON OFF OFF
20000 ON OFF OFF OFF
40000 OFF OFF OFF OFF


JKD7208S Stepper Motor Driver Dimension:


JKD7208S

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?


2Q: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.


3Q: 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


4Q: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


5Q: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


6Q:Motor acceleration blocking:

     A: ① short acceleration time

         ② motor torque is too small

         ③ Low voltage or current


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