SunStar Fortuna series, User Manual

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The inertia tuning function enables the machine to save the gain value of the motor
that matches the loaded inertia. If you simultaneously press buttons
and ,
you will see the inertia tuning screen. Then, you will see the words "TUNE" blinking.
When the screen changes, you must press the pedal until the buzzer rings. If you
release the pedal before the buzzer rings the inertia tuning won't be completed.
Therefore, you must press on the pedal until the buzzer rings.
(When doing inertia tuning, the sewing machine will operate and stop 10 times).
When inertia tuning is completed, the buzzer will ring and it will automatically return
to the initial screen.
[ Caution ]
Inertia tuning can only be carried out when the controller is attached to the sewing machine for the first time and when the sewing
machine does not accelerate or decelerate quickly.
4) Method of Use: Inertia Tuning Function
<Inertia tuning initial screen>
<Initial screen>
5) Sewing machine head open error and safety switch error
Sewing machine head open error function is available for KM-2300 series. When the sewing machine head is lifted during sewing or
with the power switch on, oPEn Er will show with a buzzer sound and sewing will stop.
When the machine head is lifted with
the power switch on
When the machine head is lifted
during sewing
When the machine head is in its
original position
oPEn Er will appear.
The error indication will disappear when the machine head is put back to its original
position, and sewing may begin.
oPEn Er will appear.
If the error message remains even after putting the machine head to its original position,
turn the power off first and turn it back on to continue sewing.
When oPEn Er message appears even when the machine head is in its original position,
be sure to check the following.
- Check the switch attached under the right side of the machine head
- Check the set value of parameter
: In case of KM-2300 Series and KM-1750/1790 Series, the value set for No. shall
be "20" and "120" respectively.
C-61
C-61
Safety switch error function is available for SC-7300 series. The error message will show when the blade does not return to its original
position during trimming
Description Symptoms and troubleshooting
When the error appears during
sewing
When the error appears immediately
after sewing starts after turning the
power on
SF22 Er will appear.
Check if the blade of the sewing machine has returned to its original position.
If SF22 Er message appears after you turn the power on and begin sewing, be sure to
check the following.
- Check the safety switch attached on the back of the sewing machine
- Check the set value of parameter: The value of
must be set at 111. C-61