For MKS GEN L Compatible with TFT32 LCD Display Support TMC2100 Motor Driver 3D Print Kits,Default NO5249

Features:

MKS GEN L:

1. Fully consider stability, heat dissipation, ease of use, continuous print reliability testing

2. Supported 3d printers include Prusa Mendel, ultimaker, printbot, makerbot, etc.

3. The maximum current is 2.5A. Up to 32 segments are supported.

4. 4-layer PCB board for better heat dissipation.

5. The internal resistance of the chip is smaller, the heat is lower, and the heat dissipation is better.

MKS TFT32 Display:

Appearance size: 110mmX65mm

Hole size: 102mmX57mm

Color touching screen: 3.2 inch

Microprocessor: 32-bit STM32 processor

Support storage system SD card, U disk

Update method: SD file update

Support file format: Gcode

Extensible module (not included in delivery): WIFI module, shutdown module, break detection switch, power failure, external card slot

TMC2100 V1.3:

The best way to set the motor current is by measuring the voltage on the "Vref" pin (0-2.5V) and adjusting the voltage with the potentiometer. The maximum motor current is 1.77A RMS and is set via the 0.11Ohm sense resistors.

Irms = (Vref * 1.77A) / 2.5V = Vref * 0.71

Vref = (Irms * 2.5V) / 1.77A = Irms * 1.41 = Imax

Vref -> Voltage on Vref pin

Irms -> RMS (Root Mean Square) current per phase (Irms = Imax / 1.41) Imax -> Maximum current per phase (Imax = Irms * 1.41)

**Example:** A voltage of 1.0V on Vref sets the motor current to 0.71A RMS.

**Note:**

On some stepper motor drivers the maximum current (e.g. A4988) is set via Vref and on others the RMS current (e.g. TMC2100).The Trinamic drivers have an automatic thermal shutdown (at about 150°C) if the chip gets to hot.

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