Hollysys HS/LS Series Digital AC Servo Drive Communication Manual

About this manual

This manual provides detailed instructions for the Hollysys HS/LS Series full-digital AC servo drives. It covers communication terminal wiring, including RS232, RS485, and CAN bus connections, as well as the necessary 120Ω matching resistor setup for networked applications.

The document details how to configure bus application and control modes via specific parameters. It explains the MODBUS and CAN bus communication protocols, including register address allocations for status, parameters, and commands, and provides specific message formats for read/write operations in question-answer, point-to-point, broadcast, and report modes. This manual is written in Chinese.

What's inside

• HS Servo Overview
• Communication Terminal Wiring
• Bus Application Mode Settings
• MODBUS Communication
• CAN Bus Communication
• CAN Bus Application Examples
• Status Parameter Registers
• Command Parameter Registers
• Fault Code Query
• Report Mode Settings

Specifications

Frequently asked questions

What are the supported communication bus modes for the HS series?

The HS series supports MODBUS communication via RS232 or RS485, and CAN bus communication.

How is the 120Ω matching resistor connected for the RS485 and CAN buses?

The driver does not provide a system-level 120Ω matching resistor; users must connect it themselves when networking.

What does error code 1301 indicate?

Error code 1301 indicates a communication timeout alarm (Time Out).