Important: This document applies to BERNINA 1.04.098 UI /11.04.056 OS. Earlier revisions of software do not use these specific parameters:
These are located under: Settings > Machine > in the box labeled TBS Calibration
The average values for these are:
Thread Break Sensitivity: 0
Feed Adjust: 20
If you have just upgraded from an earlier revision of Bernina E16 software, and now encounter real or false thread/bobbin breaks or quality issues, start by changing those two settings to the average values listed here. Then, if needed, adjust those settings as detailed below.
How and When to Adjust these settings:
Thread Break Sensitivity (Values start at 0 and can range from -100 to 50) If you are encountering excessive False Thread/Bobbin Breaks, you canincrease your Thread Break Sensitivity value in increments of 10. Start by changing from 0 to 10, then run the machine to determine if the False Thread/Bobbin Breaks are eliminated. If they continue to occur, you can increase the value to 20 and then run the machine. That value can continue to be increased by increments of 10 (max value 50) until the False Thread/Bobbin Breaks are eliminated. Finally, test for Real Thread Breaks while sewing by cutting the thread in the area between the Thread Break Sensor and the Needle to verify that the Thread Break is detected.
If actual thread breaks are not being consistently detected, you can lower the Thread Break Sensitivity value by increments of 10 until it properly detects thread breaks. Change the value to -10 and start sewing, then cut the thread that's currently being used and observe whether it's immediately detected. You can continue to decrease that value (-20, -30, etc.) as necessary.
Feed Adjust (Values start at 20 and can range from 15 to 25) can be increased or decreased by increments of 1 if you see issues with the quality of the sew-out. E.g., decrease to 19, 18, 17, testing each time to see if the quality improves. Alternately, it can be increased to 21, 22, 23, etc. and observe the change in quality. By increasing this value the thread becomes looser. By decreasing the value it will tighten the stitch. For example, if you are getting small loops or the bobbin column is very thin or non-existent you should decrease the value and tighten the stitch.
Backup on Thread Break
Upper setting has a maximum of 10 Stitches.
Bobbin setting has a maximum of 17 Stitches.