JUKI DDL-7000A-7 Series Instruction Manual page 37

⑥ Selection of the soft-start function (Function setting No. P08)
The needle thread may fail to interlace with the bobbin thread at the start of sewing when the stitching
pitch (stitch length) is small or a thick needle is used. To solve such problem, this function (called "soft-start")
is used to limit the sewing speed, thereby assuring successful formation of the starting stitches.
0 to 99 :
P 0 8
The sewing speed limited by the soft-start function can be changed. (Function setting No. P07)
Data setting range : 100 to 1500 [sti/min] <10 sti/min>
P 0 7
⑦ Changeover of the needle up/down switch function (Function setting No. P15)
The function of the needle up/down switch is changed over with this function setting number.
0 : Needle up/down correction
P 1 5
1: One-stitch correction
2: Continuous half stitch
3: Continuous one stitch
⑧ Function of reverse feed stitching on the way (Function setting Nos. P139 to P143)
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.139
0 : OFF
1 3 9
1 : ON
Function setting No.140
Setting range : 0 to 19 stitches
1 4 0
Function setting No.141
0 : OFF
1 4 1
1 : ON
(Caution) Either condition is operative when the sewing machine is running.
Function setting No.142
0 : OFF
1 4 2
1 : ON
Function setting No.143
1 4 3
Setting range : 200 to 3000 [sti/min] <10 sti/min>
The number of stitches to be sewn under the soft-start mode.
Function of reverse feed stitching on the way is selected.
Normal back-tack function
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
Inoperative when the sewing machine stops. (The reverse feed stitching on
the way functions only while the sewing machine is in operation.)
Operative when the sewing machine stops. (The reverse feed stitching on
the way functions while both the sewing machine is in operation and is at
rest.)
Thread trimming is performed when reverse feed stitching on the way is com-
pleted.
Without thread trimming
Thread trimming is executed.
Set the sewing speed when the reverse feed stitching at midpoint of sewing is
performed.
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