Yaskawa SGDV Servo Unit User Manual

About this manual

This manual provides comprehensive information for the Yaskawa Σ‑V series SGDV servo units, covering design concepts, safety precautions, wiring, trial run procedures, adjustment, auxiliary functions, monitoring, closed‑loop control and fault diagnosis. It is intended for engineers and technicians who install, commission or maintain the servo unit and its matched servo motors.

The document includes detailed specifications, wiring diagrams, panel operation instructions, system configuration examples and a full index of safety and regulatory information. All content is presented in Chinese and reflects the 2009 revision of the manual. This manual is written in Chinese.

What's inside

• Overview
• Servo Unit Parts Naming
• Rated Values and Specifications
• Speed, Position and Torque Control Specs
• Internal Block Diagram
• System Configuration Examples
• Model Identification Method
• Maintenance and Inspection
• Panel Operator Functions
• Wiring and Connections

Specifications

Frequently asked questions

What are the maximum allowed lengths for the signal and power cables?

Signal cables may be up to 3 m, encoder cables up to 50 m, and the 24 V power cable up to 10 m.

How should the grounding terminal of the SGDV unit be connected?

Connect the grounding terminal to earth with a resistance below 100 Ω for 100 V units and below 10 Ω for 400 V units.