Leisai DMA860H Digital Two-Phase Stepper Driver User Manual

This manual covers the setup, wiring, and operation of the Leisai DMA860H digital two-phase stepper driver, including current settings, microstepping…

Brand: Leisai
Document type: User Manual
Language: Chinese
Pages: 8
File format: PDF
File size: 494 KB
Published: 16 October, 2026
Updated: 16 October, 2026
Model: DMA860H
MD5 checksum: A356E9A8848B0A41B95CE8D221DA72AB
PDF: Leisai DMA860H Digital Two-Phase Stepper Driver User Manual PDF

About this manual

The Leisai DMA860H is a digital two-phase stepper motor driver that utilizes digital DIP technology to allow users to set arbitrary currents within the rated range and microstepping resolutions from 400 to 51200. It features built-in automatic parameter tuning for optimal performance across different motors. This manual is written in Chinese.

What's inside

Product Introduction
Electrical and Mechanical Specifications
Interface and Wiring Description
Current and Microstepping Settings
Power Supply Selection
Motor Matching
Typical Wiring Cases
Protection Functions

Specifications

Output Current (Peak)	2.4 - 7.2 A
Control Signal Frequency	0 - 200 KHz
Insulation Resistance	50 MΩ
Weight	570g

Frequently asked questions

What is the range of microstepping settings?

The driver supports setting microstepping from 400 to 51200 steps per revolution.

How does the static current feature work?

When set correctly, the current automatically reduces to half after a pulse train stops for about 0.4 seconds.

What happens if an overvoltage fault occurs?

The red LED will flash twice in a 3-second cycle to indicate the voltage is greater than 102VAC.

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