Servo Drives
Σ-III Series [ SGMMJ, SGMAS, SGMPS, SGMSS/SGDS ]
Get faster positioning speeds with the new enhanced Σ-III.
Top Performance realizes high-speed and smooth positioning with minimum machine vibration.
Features
Feature 1Compact
- Downsize Machine Drive Sections while Increasing Power.

Feature 2Quick
- Minimize Machine Vibration while Performing High-speed Positioning.
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- The less deviation control reduces the positioning settling time for high-rigidity machines to 1 ms or less.
- The advanced control enables smooth, high-speed operation and minimizes the positioning deviation for low-rigidity machines.
- A 17-bit encoder is mounted as a standard feature. The highly accurate absolute position data and upgraded vibration suppression control on stopping are indispensable for extra-fine processing and high-precision mounting.
- Torque ripple is greatly reduced to ensure smooth rotation.
Feature 3Simple
- Adjustments to the Machine Are Easily Performed with Tuning Functions.
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- Advanced Autotuning
The motor is operated through a Digital Operator or Panel Operator (built into the SERVOPACK) to automatically adjust the gain and filter settings to optimum values. - One-parameter Autotuning
Adjust the servo gain as easily as turning a dial. - Easy FFT
A simplified version of the FFT Function in the optional Engineering Tool is provided in the SERVOPACK. Using only the Digital Operator, mechanical vibration frequencies can be determined and notch filter frequencies can be set automatically. - New Digital Operator with Five-Line LCD
The Digital Operator can be used to copy parameters.
- Advanced Autotuning
Feature 4Tuning
- Even Smoother Adjustments to the Machine.
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- Advanced Autotuning
With a remote Digital Operator or the built-in Panel Operator, set the Servodrive to run so that you can tune the parameters. The optimum settings for the load moment of inertia, the servo gains, and the filter for the connected machine will be automatically set. - One-parameter Autotuning
Four servo gains can be automatically adjusted by tuning just one parameter for a servo gain with the on-screen slider. - Easy FFT
A simplified version of the FFT function is pre-installed in the SERVOPACKs in the Σ-III Series.
The mechanical vibration frequency is monitored on a remote Digital Operator or the built-in Panel Operator, and notch filters are automatically set to minimize vibration.
- Advanced Autotuning
Feature 5Operation
- Easier to Read with Improved Functions
- The new JUSP-OP05A Digital Operator can display four types of data at the same time, such as parameter settings and monitor values, to make adjusting servo parameters even easier.
Feature 6Functions
- Many Functions for Advanced Customization
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- Online Vibration Monitor
Detects the vibration frequency while the machine is running to automatically set the required frequencies of the notch filters. - Vibration Suppression Control*
Minimizes the vibration caused by the resonance of a low-rigidity machine. - Less Deviation Control
Improves the machine's follow-up accuracy. Almost no deviation occurs, not only in triangle, but also in trapezoid patterns for references. - Predictive Control
Corrects the command being executed for improved servo response. - Backlash Compensation
Compensates the machine backlash in one direction by adding a value to the position reference in one direction. - Vibration Suppression Control on Stopping
Minimizes vibration when the motor is stopped (servo-lock). If no position reference is input, damping is set for the torque reference so that the torque variation at stopping is moderated. - Automatic Gain Switching
Shortens the settling time and minimizes vibration on stopping. - High-speed Rotation
Maximum motor speed : 6000min-1improves the machine's performance.
- Online Vibration Monitor
*: Contact your YASKAWA representative if planning to use these functions.










