Bernina 990 - 3.19.7 Buttonhole Foot Calibration; 3.20 Embroidery Settings; 3.20.1 Upper Thread Tension; 3.20.2 Embroidery Speed

My BERNINA
3 Set Up the machine 47
Securing Stitches
When the Securing
function is switched on, you
can use the Securing Stitches
function, to select
how securing stitches are sewn. The following
functions are available:
n Secure in Place: Securing Stitches in Place.
n Running Stitches: Running Stitches.
Running Stitches
If you have selected the Running Stitches
setting,
you can set the count of securing stitches.
Cut Upper and Lower Thread
With the Cut Upper and Lower Thread
function,
you can switch the thread cut on and off.
Raise Presser Foot
With the Raise Presser Foot
function, you can
switch the raising of the presser foot on and off.
Buttonhole Foot Calibration
Settings
►
Sewing
►
Buttonhole Foot Calibration
The Buttonhole Foot with Slide#3A is calibrated to the
machine and they should always be used together. A
new buttonhole foot must be calibrated with the
machine in the sewing settings before its first use.
Prerequisite:
n The needle is not threaded.
1. Open the Buttonhole Foot Calibration setting.
2. Attach the Buttonhole Foot with Slide#3A.
3. Push the Start/Stop
button.
ð The machine moves the buttonhole foot with
slide forward and backward and displays
successful calibration.
3.20 Embroidery Settings
Upper Thread Tension
Settings
►
Embroidery
►
Upper Thread Tension
The upper thread tension is set optimally at the
BERNINA factory. Mettler Metrosene/Serlon thread size
100/2 is used for the upper and bobbin thread.
If you use different types of sewing threads, the upper
thread tension may vary. You can override the default
setting in the Embroidery Settings. This modification is
made to all embroidery designs and kept until changed
again in the Settings, even after a machine restart.
The higher the upper thread tension is set, the tighter
the upper thread is tensioned, and the bobbin thread is
pulled deeper into the fabric. The lower the setting the
lower the upper thread is tensioned, and the bobbin
thread is pulled less deeply into the fabric.
TIP
If the embroidery test shows that the upper thread
tension is not optimal for an embroidery design, you
can modify the upper thread tension for the selected
embroidery design using the Upper Thread
Tension
function in the Status Bar.
For a higher bobbin thread tension, use a bobbin
case with a high thread tension (HTTBC).
Embroidery Speed
Settings
►
Embroidery
►
Embroidery Speed
The embroidery speed is specified in stitches per
minute. The maximum embroidery speed is 1000
stitches per minute.
With the Embroidery Speed setting, you can limit the
maximum embroidery speed. The setting is saved when
the machine is switched off.
TIP
You can also modify the embroidery speed during
stitching using the foot control or the slide speed
control. You can switch on the maximum embroidery
speed for the current embroidery design while
embroidering using the function High Speed
.
Design Position
Settings
►
Embroidery
►
Design Position
With the Design Position setting, you can set the
standard positioning of the embroidery design in the
hoop.
Embroidery designs can be positioned either in the
center of the hoop (default) or at the saved position.
The saved position corresponds either to the position of
the embroidery design when saved in your Personal
Folder or to the position saved in BERNINA Embroidery
Software. The setting is saved when the machine is
switched off.