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(2) Feature of the center knife actuating position setting
• In case of the slant sewing setting, whether the corner knife performs indexing or not makes the setting of
center knife actuating position as follows.
When the corner knife performs indexing, parameter of index excess
cut length (
/
) is automatically added in addition to pa-
rameter (
/
) of center knife actuating position setting.
When the deflection of left/right corner knives is 4.1 mm or
more, the corner knife performs indexing (short corner knife
is changed over to long corner knife).
Whether the corner knife performs indexing or not is decid
-
ed by the deflection setting and the set value of corner knife
actuating position setting as shown below.
For the details, see the corner knife actuating position set
-
ting procedure.
[Setting of center knife actuating at the start of sewing]
In case of normal setting (corner knife does not perform indexing), screen A is displayed.
When the corner knife performs indexing, screen B instead of screen A is displayed. As shown in screen B,
(parameter of index excess cut length on the moving side/initial value 4.0 mm) is automatically added.
A
B
C
Center knife actuating
position setting screen
(Screen A)
Center knife actuating
position setting screen
(Screen B)
A
Center knife actuating position at the start of sewing is displayed. (B + C)
B
Center knife actuating position at the start of sewing before compensation is displayed.
C
Index excess cut length on the moving side (initial value 4.0 mm) is displayed.
Center knife actuating position :
Index : With
+
Index : Without
Center knife actuating position at the start of sew-
ing :
Index : With
+
Index : Without
When the sewing type is changed, be sure to use the machine after confirming the positions of cor
-
ner knife and center knife with trial sewing.