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④ Needle up/down switch function changeover function (Function setting No. 22)
The needle up/down switch function can be changed over between the needle up/down compensation and
one stitch compensation.
0 : Needle up / down compensating stitching
n.
2
2
1 : One stitch compensating stitching
⑤ Setting of the suction time of the back-tack solenoid (Function setting No. 29)
This function can change the suction time of the back-tack solenoid. It is effective to decrease the value
when the heat is high.
(Caution) When the value is excessively decreased, failure of motion or defective pitch will follow.
Be careful when changing the value.
Setting range : 50 to 500 ms <10 / ms>
n.
2
9
⑥ Function of reverse feed stitching on the way (Function setting Nos. 30 to 33)
Functions of the limit of number of stitches and thread trimming command can be added to the touch back
switch on the sewing machine head.
Function setting No. 30
0 : OFF Normal back-tack function
n.
3
0
1 : ON
Function setting No. 31
Setting range : 0 to 19 stitches
n.
3
1
Function setting No. 32
0 : OFF Inoperative when the sewing machine stops. (Reverse feed stitching on the way
n.
3
2
1 : ON
(Caution) Either condition is operative when the sewing machine is running.
Function setting No. 33
0 : OFF Without thread trimming
n.
3
3
1 : ON
Function setting
Application
No.30 No.32 No.33
❶
0
0 or 1 0 or 1 It works as normal touch-back switch.
❷
1
0
❸
1
1
❹
1
0
❺
1
1
Function of reverse feed stitching on the way is selected.
Function of reverse feed stitching on the way
Number of stitches performing reverse feed stitching is set.
Effective condition of reverse feed stitching on the way
functions only when the sewing machine is running.)
Operative when the sewing machine stops. (Reverse feed stitching on the way
functions both when the sewing machine is running and stops.)
Thread trimming is performed when reverse feed stitching on the way is com-
pleted.
Thread trimming is executed.
When operating touch-back switch at the time of depressing front part of the pedal,
0
reverse feed stitching as many as the number of stitches specified by the function
setting No. 31 can be performed.
When operating touch-back switch at the time of either stop of the sewing machine
0
or depressing front part of the pedal, reverse feed stitching as many as the number
of stitches specified by the function setting No. 31 can be performed.
When operating touch-back switch at the time of depressing front part of the pedal,
1
automatic thread trimming is performed after reverse feed stitching as many as the
number of stitches specified by the function setting No. 31 has been performed.
When operating touch-back switch at the time of either stop of the sewing machine
or depressing front part of the pedal, automatic thread trimming is performed after
1
reverse feed stitching as many as the number of stitches specified by the function
setting No. 31 has been performed.
– 39 –
Output function
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