Open-loop stepper driver (2 Phase)

2-Phase Open-Loop Stepper Drivers for Industrial Machines

Runcin 2-phase open-loop stepper drivers provide practical motion control for automation equipment with predictable loads. The range includes six models for small, medium and high-power stepper systems. Therefore, engineers can select a driver according to motor size, supply voltage, current and required microstep resolution.

These digital drivers support pulse-and-direction control. In addition, selected models use ARM or 32-bit DSP control technology. Motor parameter auto-tuning helps each driver match different motors. As a result, machines can achieve smoother movement, lower noise and stable medium-speed performance.

Flexible Models for Different Voltage and Current Needs

The R2D1725 open-loop stepper driver is a compact low-voltage option for small equipment. It accepts DC 18–36V input and delivers up to 2.5A peak current. Moreover, users can set microstep resolution from 400 to 6400 pulses per revolution.

For general industrial machines, the R2D2356 stepper driver supports DC 20–50V and up to 5.6A peak current. It also provides subdivision settings from 200 to 25600 pulses per revolution. Therefore, it gives machine builders more flexibility for motion tuning.

The R2D3472 two-phase driver suits larger motors. It supports both AC and DC power, while its peak output reaches 7.2A. In addition, the driver offers up to 51200 pulses per revolution. High-voltage systems can use the R2D4270 stepper driver, which accepts AC 110–280V and supports pulse frequencies up to 1MHz.

Applications and Driver Selection

These drivers suit CNC machines, engraving equipment and cutting systems. They also support packaging machinery, electronic processing equipment and automated assembly lines.

Before choosing a model, compare the motor current, inductance and frame size. Also confirm the power supply, pulse frequency and microstep requirements. This review helps prevent mismatched components and improves machine reliability.

Browse the complete 2-phase open-loop stepper driver range. You can also compare the main stepper drive series, closed-loop two-phase drivers and mini stepper drivers.

Choose Runcin drivers for flexible configuration, simple pulse control and reliable OEM integration.