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- This is Ultra-silent 4-layer Substrate MKS-LV8729 Stepper Motor Driver with Heat Sink
- Ultra-silent 4-layer Substrate MKS-LV8729 Stepper Motor Driver Support 6V-36V With Heatsink
- This can interface directly with 3.3 V and 5 V systems
- Over-temperature thermal Shutdown, over-current Shutdown and under-voltage lockout
- Short-to-ground and shorted-load protection
Ultra-silent 4-layer Substrate MKS-LV8729 Stepper Motor Driver with Heat Sink
The Ultra quiet LV8729 4-layer Substrate Stepper Motor Driver Module with 128 subdivisions is used in 3d printers and is a Best suited Moter Driver for Nema stepper motor whose current is less than 1.5A, which makes the motor steady, quiet, and precise.
The LV8729 is a PWM current-controlled micro step bipolar stepping motor driver. This driver can perform eight times of excitation of the second phase to 32W1-second phase and can drive simply by the CLK input.
It has a wide range of Operating voltage range i.e. 6V-36V, the proposed voltage is 12V Support subdivisions of 1, 1/2, 1/4, 1/8, 1/16, 1/32, 1/64, 1/128 with product Process of four-layer PCB board. In the 64 subdivision or 128 subdivision controller, it has a better ultra-quiet effect.
Note: Please make sure the connecting direction is right, or it will probably burn the driver chip and controller board. Recommend doing a good job of cooling the module
Driver current algorithm and its adjustment:
- Driver current algorithm: i=Vref/0.5, the default Vref about 0.4V, so the default current 0.8A, and maximum current 1.5A
- Please DO NOT connect the motors when measuring the voltage, or it’s easy to burn the drive.
- Please connect both the power supply and the USB for power when measuring the voltage.
- Minor adjustment for potentiometer driver. Adjust it again after measurement to avoid burning the driver by excessive current.
- To increase the current by rotating the potentiometer clockwise slowly, and anticlockwise to reduce.
MKS-LV8729 Stepper Motor Driver Pinout:
Shipping & Returns
Shipping & Returns
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otherwise. No refunds/replacements after - Returns only for non-working/damaged products are accepted
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- Refunds are processed within 3-4 working days post inspection and approval.
For more details, please check our Shipping and Return Policy
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Package Includes:
- 1 x Ultra-silent 4-layer Substrate MKS-LV8729 Stepper Motor Driver 4-layer Substrate With Heat Sink
Specifications:
| Maximum voltage | 36V (usually 12V) |
| Support subdivision | 1, 1/2, 1/4, 1/8, 1/16, 1/32, 1/64, 1/128 |
| Maximum drive current | 1.8A |
| Dimensions (mm) | 20 x 15 x7 |
| Weight | 5g |
1. How to do Motor Current Limit Setting in MKS-LV8729 Stepper Motor Driver?
- Current limit can be set by measuring VREF and an adjustable resistor (see schematic). Connect the voltmeter + to VREF and [-] to GND and read the value. The LV8729 uses a 0.10 ohm current sense resistor, so the current limit can be calculated as: [current limit = VREF x 2]
Setting a MKS-LV8729 Stepper Motor Driver:
Setting a LV8729 Motor Driver Current with Multimeter
Note: Please do not exceed the current rating of the motor current, or motor and motor driver will be over-heated, or even damage.
2. What is LV8729 Stepper Motor Driver?
- The LV8729 is a PWM current controlled bipolar microstepping stepper motor driver. This driver can perform 8 second phase excitation up to 32W 1 second phase and can be easily driven by the CLK input.
Micro-stepping:
| Microstep | MS1 | MS2 | MS3 |
|---|---|---|---|
| Full Step | Low | Low | Low |
| ½ Step | High | Low | Low |
| ¼ Step | Low | High | Low |
| ⅛ Step | High | High | Low |
| 1/16 Step | Low | Low | High |
| 1/32 Step | High | Low | High |
| 1/64 Step | Low | High | High |
| 1/128 Step | High | High | High |
