1S Manual Tuning
How to use the manual tuning wizard in Sysmac Studio and 1S Servo System
Written by Nicolas Donoso
Updated at March 29th, 2026
Manual Tuning in Omron 1S servo systems is a manual gain-adjustment method in Sysmac Studio that lets you tune the drive by changing “machine rigidity” setting. It’s useful when you want more direct control over responsiveness and stability than automatic tuning provides.
In short, Manual Tuning is a practical way to fine-tune the 1S servo’s performance when you need to optimize for your specific machine mechanics.
In Sysmac Studio, the machine rigidity value is a single tuning parameter that represents how stiff or flexible the mechanical system is, and the drive uses it to automatically set position/velocity loop gains and filters for the 1S servo.
- It is a numeric setting (0–31 for 1S in manual tuning) that abstracts the physical rigidity of the machine into a simple scale.
- Lower values correspond to a more flexible or low‑rigidity mechanism, so the drive applies lower gains and more conservative tuning to avoid vibration.
- Higher values correspond to a stiffer, high‑rigidity mechanism, so the drive applies higher gains for faster response and tighter positioning.
As a rule of thumb, start from the recommended value for the mechanism type (e.g. belt, ballscrew, direct drive) in the wizard, then increase rigidity gradually while checking step response/trace until you approach the limit before oscillation.
Setup and tuning
Open the “Setup and Tuning” tab by right-click on the 1S Servo Drive under the EtherCAT network
Then select “Manual Tuning”
Machine settings
By default the Rigidity value is set to 13, set this to a value that you underestimate you system to be (keep in mind the previous explanation of Rigidity Value).
Then select if you want your electro-mechanical system to focus on tracking (lower position deviation during travel) or overshoot suppression (fast settling time at final destination).
Then transfer the settings to the drive
Test run and adjust
Test run with the parameters transferred to the servo drive, then increase the Rigidity value until you reach the desired response out of your electro-mechanical system (e.g. no oscillation). Recommendation is to only increase the Rigidity value by one at a time and test, otherwise if you increase the Rigidity value too much at once you risk damaging you electro-mechanical system
Fine tune individual parameters - Advance
You can also chose to adjust manual some of the individual parameters, such as gains. There are 2 options for this. First is to adjust them in the table as we saw in previous images, second is to adjust them through the Block Diagram.
