SunStar NNS Series User Manual page 54

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(4) Backtack Length
This sets the stitch length when the backtack is carried out.
It will be effective to set 0.8[mm] for locking the fi rst stitch or trimming when thin material or wool
is used.
- It can be set 0.6~0.8[mm] by 0.1[mm] unit.
(5) Backtack Method
This sets the method of performing the backtack.
(6) Jump Convert
This sets the stitch length that coverts the normal code to jump code.
- It can be set 5.0~12.7[mm] by 0.1[mm] unit. That is, if the distance between two stitches is longer
than the set value when the frame moves from a stitch to another, it is converted to the jump stitch.
(7) Autostart After Back
This sets whether the work will automatically start when it reaches the "12) Autostart before" posi-
tion in case of starting the work after backing the frame from the spot the machine stopped.
- Set '0' for "No" if you do not want the autostart.
(8) Work Head After Back
When you back the frame from the spot the machine stopped and start embroidery using the bar
switch or start button, this determines whether only the heads with threads broken should work or all
the heads should work.
- '0' is for "Each", and set '1' for "All" if you want to make all the heads work.
(9) Autostart Before
When the machine is stopped because it much later detected that a certain needle had a problem(e.g.
thread broken) when the whole or many needles were in work at the same time, you can correct the
part that is not embroidered properly by backing the frame. Then you can operate the head only that
had a problem until the error occurrence point. In this situation, you might want to overlay some
stitches for the rest of the heads before the error occurrence point to prevent the bobbin thread from
being drawn. You can set the relative position where the whole needles start moving ranging from 1
to 20[stitches].
(10) Back Stitch Number
In case of moving the frame forward or backward using the bar switch, this determines the stitch
numbers that are moved by one time bar switch operation.
- The range is from 1 to 10[stitches] by 1[stitch] unit.
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