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5) Set "U201 Bobbin thread remaining amount
for starting correction" with numeric keypad
.
Using the aforementioned set value, deter-
mine the remaining amount of bobbin thread
indicated on the bobbin counter for starting
the needle thread correction.
Refer to
"5-5. Counter function" p.103
for
how to set the bobbin counter.
The set value can be reset to the initial value
of 50 by pressing
.
6) Set "U202 Final correction amount" with the
numeric keypad
.
Using the aforementioned set value, deter-
mine the correction ratio of the needle thread
tension.
The set value can be reset to the initial value
of 120 by pressing
.
7) When
is pressed, the entered value
is conrmed and the screen is returned to
the "S079 Needle thread tension correction
screen".
* Refer to the gure on the left for the relation
between "U201 Bobbin thread remaining
amount for starting correction" and "U202
Final correction amount".
Tension correction
amount [%]
Bobbin
thread
remaining
amount [%]
U202
100
100
0
U201
0
4-1-5. Right / left tension correction
Use the right / left tension correction according to the material, thread and application.
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