Yaskawa Sigma-7 Rotary Servo Motors
Rotary Servo Motor
The Sigma-7 line of AC brushless rotary servo motors covers a full range of load requirement in both small and medium capacities. The advanced technology built into Sigma-7 sets a new industry standard for responsiveness, precision and long-term reliability. Each Sigma-7 motor is engineered to maximize compatibility with existing Sigma-5 motors in control electronics, electrical rating and mounting conventions. Sigma-7 motors can be equipped with matching gearheads to suit a wider range of speed or mechanical linkage requirements.
- 3.1kHz Frequency Response, nearly double the servo bandwidth of the Sigma-5 systems that set the industry standard in performance
- New Tuning Functions: vibration suppression, anti-resonance compensation, friction model compensation and ripple compensation improve machine speed, accuracy and smoothness
- Improved Tuning-less Mode delivers reliable stability with inertia ratios up to 30:1. Tuning gains adjust automatically and continually to provide consistent motion despite load changes
- 24-bit absolute encoder feedback for 16x better resolution*
- New Dual-axis SERVOPACKs save space, reduce enclosure size
- 20% Reduction in motor size and motor heating*, for better efficiency and easier implementation in existing designs
- Complete Sigma-5 compatibility. Servo motors and SERVOPACKs have interchangeable mounting dimensions, parameters convert to Sigma-7 with SigmaWin+ software (included at no charge)
- Network compatibility with built-in MECHATROLINK-III, EtherCAT and analog interfaces
- Built-in safety features with IEC 61508, SIL 3 Safe Torque O in Sigma-7 SERVOPACKs
- New thermal sensors on servo motors and SERVOPACKs directly monitor machine temperatures
- Better ratings in higher temperature environments (60oC ambient), at higher altitudes (>2,000 meters) or in harsh motor environments (IP67 rated)
- Regenerative Power Sharing with Dual-axis SERVOPACKs or DC-Bus connections with single-axis SERVOPACKs
- Service Life Monitoring o ers preventive maintenance data on key SERVOPACK components
