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    Digital Stepper Driver 80-220V AC for Nema 34 Stepper Motor

    $195.85
    ATODSP22208 is digital 2-phase stepper motor drive, it is widely used in middle and big size numerical control devices such as curving machine, CNC machine, and computer embroider machine, packing machines and so on. Capable of driving 2 phase Nema 34, 42 closed-loop hybrid stepper motors.
    SKU: ATODSP22208
    Delivery date: 6-12 days

    2-phase digital stepper driver, 80-220V AC power supply for 2 phase Nema 34, 42 stepper motor, manufacturer direct sale.
    Features:

    • 32-bit DSP digital control mode.
    • Low vibration, low noise, low power consumption.
    • Flexible subdivision runs more smoothly.
    • Automatic memory power phase.
    • Optically isolated input signal.
    • Space vector bipolar constant current drive.
    • Maximum output current 7.5A / phase.
    • Provide energy-saving automatic half-current lock function.
    • Maximum 25600 steps / turn of the 16 subdivision mode optional.

    Specifications

    Basics Information
    Model ATODSP22208
    Size 135 x 77 x 46 mm
    Phase 2
    Weight 1.5 kg
    Supply Power 80-220V AC
    Capacity 0.8 kVA
    Output Current Peak 7.5A/Phase (Max.)
    Driver Method Space vector bipolar constant current drive
    Isolation Resistance >500 MΩ
    Dielectric Strength 1kV, 1Min
    Cooling Method Natural Convection
    Environment
    Operation Environment Temperature -5℃~+40℃
    Humidity <80% RH
    Vibration 5.9m/s2 (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.

    Driver Wiring Diagram
    dsp22208 wiring

    Driver Wiring Diagram
    driver circuit
    Installation Size
    dsp22208 dimension
    Tips: Current comparison chopper drive method for stepper motor
    Current comparison chopper drive is to convert the stepper motor’s winding current into a certain percentage of voltage, which is compared with the preset value output by a D / A converter, the result of which comparison is used to control the switch of power tube for the purpose of control of the winding phase current.
    Advantages: To make motion control simulate characteristics of sine waves, greatly improving performance, relatively small speed and noises, higher subdivision able to be used, current popular control method.
    Disadvantages: The circuit is more complex. It is difficult to control circuit interference which should be consistent with theoretical requirements. Vibration is easy to occur. In the control of formation of crests and troughs of sine waves, high-frequency interference is easily led to, which further leads to heating of drive elements or aging because of excessively high frequency. That is also the main reason why red light protection tends to occur when many drives are used for more than one year.

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