Helios SE Series Bus Stepper Driver Communication Manual

About this manual

This manual provides instructions for configuring and debugging the Helios SE series digital stepper drivers using the MODBUS (RTU) communication protocol. It details the physical layer connections for RS485 interfaces and explains how to set communication parameters such as baud rates and station addresses via DIP switches or register commands.

The document covers the complete MODBUS register map, including command registers for controlling motor modes, speed, position, and acceleration/deceleration, as well as status registers for monitoring motor states and errors. It also explains the IO coil control signals for starting/stopping the motor and saving parameters to the E2PROM. This manual is written in Chinese.

What's inside

• MODBUS Communication Overview
• Terminal Wiring
• Baud Rate Settings
• Station Address Configuration
• Command Register Definitions
• Status Register Definitions
• IO Coil Control
• Parameter Saving and Reset
• Operating Modes Examples

Specifications

Frequently asked questions

What physical interface does the Helios SE driver support for MODBUS communication?

The driver supports RS485 as its physical layer interface.

How many data bits and stop bits are used in the transmission format?

The transmission format uses 8 data bits, no parity check, and 1 stop bit.

What is the valid range for setting the driver station address via software register 10?

When using command register settings, the station address range is 1 to 247.

How can a user restore all parameters to their default values?

Users must change the value of parameter address 15 to 2806 and then power cycle the driver.