1. Overview

DM422-JS is a two-phase digital stepper driver launched by Gree IoT Technology Co., Ltd. It adopts a servo like control principle and integrates vector control technology, built-in micro segmentation technology, and adaptive filtering technology, greatly optimizing the performance of the stepper motor. It runs smoothly at low, medium, and high speeds with low noise. The precise and smooth pure sine current vector control technology effectively reduces motor heating. It has extremely high cost-effectiveness and can meet the application needs of the vast majority of occasions.

The normal driving voltage range of DM422-JS driver is DC20~40V, suitable for two-phase hybrid stepper motors with peak current below 2.2A and an outer diameter of 42mm.

2. Characteristics

● New 32-bit DSP technology ● Easy to install

● Can drive 4, 6, and 8-wire two-phase stepper motors ● Optical isolation differential signal input

● Built in micro segmentation ● Pulse response frequency up to 200KHz (higher adjustable)

● Precise current control greatly reduces motor heating ● Low vibration and low noise

● Automatic halving of current when stationary ● Equipped with overvoltage, undervoltage, and phase loss protection functions

3. Application Fields

Suitable for various small and medium-sized automation equipment and instruments, such as engraving machines, marking machines, cutting machines, plotters, CNC machine tools, automatic assembly equipment, etc. The application effect is particularly good in devices where users expect low noise and high speed.

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