Yaskawa Sigma-7 Servo System

• Ultra-fast response time: response frequency reaches 3.5 kHz, helping to improve machine performance.
• Tuning-less: no need for initial tuning, automatic rotor-inertia compensation up to 100:1.
• Anti-vibration – anti-resonance: advanced filter eliminates vibration, mechanical oscillation, cogging, friction, making movement smooth and precise.
• High-resolution encoder: 26-bit ≈ 67 million pulses/rev, 4 times higher than Sigma-7, improving positioning accuracy.
• High speed: the motor can reach 7,000 revolutions/minute (RPM).
• Flexible connectivity: supports EtherCAT, MECHATROLINK, Analog, EtherNet/IP, Modbus TCP and OPC UA.

• Power range: 3 W – 55 kW
• Power supply: 100 V / 200 V / 400 V AC
• Maximum speed: 7,000 RPM
• Encoder: 24-bit / 26-bit (depending on the model)
• Frequency response: 3.5 kHz
• Control type: Position – Speed ​​– Torque
• Servo type: Rotary, Direct Drive, Linear

Typical applications of Yaskawa Sigma-7 Servo System:

• Packaging machines, food & beverage (especially with FDA/EHEDG compliant stainless steel motors).
• Robotics systems (SCARA, Delta, Cobot, Gantry…).
• Precision assembly lines, CNC machines, high-speed machining.
• Linear drive systems – Linear Stage (Sigma Trac II).
• Printers, labelers, palletizing lines.
• Applications requiring high-speed positioning and repeatability of ±2 µm.

• Tuning-less Function: automatic adjustment from installation, no need for complex fine-tuning techniques.
• Advanced Auto Tuning: automatically optimizes nearly 20 gain & filter parameters, eliminates vibration and resonance.
• One-Parameter Tuning: quick fine-tuning with only 1 parameter.
• Ripple, Friction Compensation: eliminates cogging, friction, improves machined surface quality.
• Vibration Suppression: uses the machine’s natural oscillation frequency to compensate → effectively reduces vibration.

Benefits of using Yaskawa Sigma-7 Servo System:

• Shorten machine cycles, increase productivity.
• Reduce installation time thanks to tuning-less & quick configuration.
• Save cabinet space with multi-axis amplifiers.
• Increase reliability thanks to battery-free encoders, optimized mechanical design.
• Easy maintenance thanks to intelligent diagnostics and connectivity.
• Easy integration with PLCs from Rockwell, Siemens and many other systems.

Yaskawa Sigma-7 is a complete servo solution for modern production lines where speed, precision and integration are key. With advanced technology, intelligent features and high reliability, Sigma-7 not only meets current requirements but is also ready for the future of smart factories – Industry 4.0.