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    Microstep Driver 20-50V for 2 phase Nema 17, 23 Stepper Motor

    5 out of 5 based on 1 reviews | Write a review
    ATOSH2024 is closed-loop 2-phase stepper motor driver, it's widely used in semiconductor, electronic processing equipment, laser processing, medical equipment and small cnc. Capable of driving 2 phase Nema 17, 23, open-loop hybrid stepper motors.
    SKU: ATO-STEP-D205017
    30-day Returns
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    Delivery date: 6-12 days

    2-phase closed-loop bipolar microstep driver, DC 20-50V, 1-5A for Nema 17, 23 2 phase stepper motor, manufacturer direct sale.


    • Input voltage 20-50 VC, the typical value is 36V, and the chopping frequency is greater than 300KHz.
    • Input signal is compatible with TTL and provides a two-pulse standby function.
    • Bipolar constant current chopping mode, optical isolation signal input, when the pulse signal to stop delay 0.4s, the motor current is automatically reduced by half, can reduce the heat.
    • Segment optional: 2, 4, 8, 16, 32, 64, 128, 5, 10, 20, 25, 40, 50, 100, 125 times subdivision optional, can drive 4, 6, 8 wires two-phase, four-phase stepper motor.
    • When the static current automatically halved, with dynamic current control technology, the motor heat is low.
    • Selectable pulse rising or falling edge trigger, with over-voltage, short circuit protection.


    Basics Information
    Model ATOSH2024
    Size 118 x 75.5 x 34 mm
    Phase 2
    Chopping Frequency >300 KHz
    Input Voltage DC 20-50V
    Max Input Power 100 W
    Output Current 1-5 A
    Control Mode Step & Direction
    Operation Environment Temperature -5℃~+40℃
    Humidity <80% RH
    Vibration 5.9m/s(Max.)
    Storage Environment Temperature -40℃~+55℃
    Humidity <93% RH
    Function Description
    Functions Operation Instructions
    Signal Interface PUL PUL+ is the positive end of the control pulse signal PUL- is the negative end of the control pulse signal
    DIR DIR+ is the positive end of directional signal DIR- is the negative end of directional signal
    ENA ENA+ is the positive end of enabling signal ENA+ is the negative end of enabling signal
    Motor Interface A A+ is connected with the positive end of the A phase winding of the stepping motor A- is connected with the negative end of the A phase winding of the stepping motor
    B B+ is connected with the positive end of the B phase winding of the stepping motor B- is connected with the negative end of the B phase winding of the stepping motor
    When the A and B two phase windings are switched, the motor direction is reversed
    Indicator Light 1. The green light is the power indicating lamp. When the drive is powered on, the green light is always on. 2. The red light is the fault indicating lamp. When the overvoltage and overcurrent faults occur, the trouble lamp is always on.
    Note: The default input signal is 5V pulse signal. When 24V input signal is required, please in series with1.8-2kΩ resistance.

    Driver Wiring Diagram
    SH2024 wiring.
    Installation Size (Unit: mm)
    SH2024 dimension
    3 points for stepper drivers model selection

    1. Current of a stepper motor driver: Current is to determine the size of the stepper motor driver capacity and is one of the important indicators to select the driver. Usually, the maximum current of the driver is slightly larger than the nominal current of the corresponding motor.
    2. Supply voltage of stepper motor drivers: The supply voltage is a measure of the ability of the driver to speed up.
    3. Subdivision of stepper motor drivers: Subdivision is the hallmark of control accuracy which may be improved by increasing subdivision. Subdivision can increase stability of the motor. A stepper motor usually is characterized by low-frequency vibration, which may be improved by increased subdivision so that the motor is able to run very smoothly.
    Existing reviews of Microstep Driver 20-50V for 2 phase Nema 17, 23 Stepper Motor
    Work well for my homemade camera slide-rail
    Works just like it was supposed to. I’m using it to motorize a homemade, camera slide-rail. I am very happy with the quality and price of this microstep driver and will be buying a second motor and driver from this seller to use on another project.
    From: Donnell | Date: 04/05/2022
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