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（Example of use）
200
150
100
50
0
100
90
80
70
Bobbin thread remaining amount [%]
Current value
Count down
60
50
40
30
20
Target value
In the case the correction is made as shown in
the figure
The needle thread tension correction starts when
the bobbin-thread remaining amount shown on the
bobbin counter reaches "70 % (U201)", and the final
correction amount "150 % (J202)" is reached when
the bobbin counter reaches "0" (zero).
For the section from 70 % to 0 %, the correction
along the inclination of the line chart is applied.
The bobbin counter starts counting down from
the target value "200". When it reaches "140", the
needle thread tension correction starts. When the
counter reaches "0" (zero), the needle thread ten-
sion is corrected by "150 %".
10
0
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