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JUKI DDL-8000A Engineer's Manual

JUKI DDL-8000A
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– 90 –
No. Item Description Setting range
Setting
levle
Default
P23 Position to lift the
presser foot by
pedal
The position to lift the presser foot by operating the pedal is set with this
function setting item.
30 to 1000
(–)
S 270
P24 Position to perform
thread trimming by
pedal
The position to perform thread trimming by operating the pedal is set with this
function setting item.
30 to 500
(–)
S 130
*
P25 Correction of
solenoid-on timing
for the reverse feed
stitching at the end
of sewing
Stitch alignment can be carried out by changing the timing of actuating the
reverse-feed stitching solenoid at the time of reverse feed stitching at the end
of sewing. When the set value for this parameter is increased, the length of
stitch at the beginning of C process is increased.
0 to 200
(°)
U 123
* P26
Correction of
solenoid-off timing
for the reverse feed
stitching at the end
of sewing
Stitch alignment can be carried out by changing the timing of releasing the
reverse-feed stitching solenoid at the time of reverse feed stitching at the
end of sewing. When the set value for this parameter is increased, the length
of stitch at the end of C process is decreased and the length of stitch at the
beginning of D process is increased.
0 to 200
(°)
U 130
P29
Brake force of the
main shaft at the
time of stopping the
sewing machine
after thread trimming
Main shaft brake force is adjusted with this function setting item for preventing
the sewing machine from overrunning before stopping.
If it is too large, it takes to much time to stop, and if it is too small, overrunning
may occur.
1 to 45
(–)
S 30
* P32
Correction of
solenoid-on timing
for the overlapped
stitching
Stitch alignment can be carried out by changing the timing of actuating the
reverse feed stitching solenoid at the time of overlapped stitching. When the
set value for this parameter is increased, the length of stitch at the end of A (C)
process is increased and the length of stitch at the beginning of B process is
decreased.
0 to 200
(°)
U
MS : 105
SH : 92
* P33
Correction of
solenoid-off timing
for the overlapped
stitching
Stitch alignment can be carried out by changing the timing of releasing the
reverse-feed stitching solenoid at the time of overlapped stitching. When the
set value for this parameter is increased, the length of stitch at the end of B
process is increased and the length of stitch at the beginning of C process is
decreased.
0 to 200
(°)
U
MS : 105
SH : 100
* P37
First current value
(ON duty) of thread
clamp
The rst current value (ON duty) for the thread clamp is set with this function
setting item.
Current value from activation of the thread presser at (P78) to (P166) passage
0 to 100
(%)
U
MS : 40
SH : 50
P44
Brake force of the
main shaft at the
time of stopping the
sewing machine on
the way
Main shaft brake force is adjusted with this function setting item for preventing
the sewing machine from overrunning before stopping on the way.
1 to 45 S 16
*
P45 Setting of BT holding
Duty
Sets the current value of the solenoid at BT on.
1 to 50
(%)
S 30
* P46
Setting of the
function of reverse
revolution to lift the
needle
This function rotates the main shaft in the reverse direction of sewing to bring
the needle bar to the highest position.
ON : Reverse-revolution operation is in the ON state
OFF :
Reverse-revolution operation is in the OFF state
ON/OFF U OFF
P47
Reverse revolution
angle to lift the
needle
The operating angle of the reverse-revolution to lift the needle is
adjusted with this function setting item.
50 to 200
(1/4°)
S 160
P48
Sewing speed at a
low speed
The minimum sewing speed of the sewing machine by operating the pedal is
set with this function setting item.
100 to 500
(sti/min)
U 200
P49
Sewing speed for
thread trimming
Sewing speed to be used when performing thread trimming is set with this
function setting item.
100 to 500
(sti/min)
U 210
P50 2nd thread trimming
speed
0: Operation is conducted at the rst thread trimming speed.
10 to 500: The speed in the latter half is set when the thread trimming
speed is decreased in the latter half.
0 to 500
(sti/min)
S 180
P51
Timing to change
over to the 2nd
thread trimming
speed
The timing to change over the sewing speed to the 2nd thread trimming
speed is set with this function setting item. 270 to 370
(°)
S 320
P52
Time to wait for
sewing after lowering
the presser foot
The time to wait for starting sewing after the presser foot is lowered is set.
10 to 500
(ms)
S 120
P53 Setting of operation
of the presser foot
when the back
part of pedal is
depressed
The operation of the presser foot when the back part of pedal is depressed is
set with this function setting item.
0 : Presser foot does not operate even when the back part of pedal is
depressed.
1 : Presser foot goes up to the 1st presser-foot lifting position when the
back part of pedal is depressed by half of the depth. It goes up to the
2nd presser-foot lifting position when the back part of the pedal is
further depressed.
2 : Presser foot does not operate even when the back part of pedal is
depressed. It goes up to the 2nd presser-foot lifting position when the
back part of the pedal is further depressed.
0 to 2
(–)
U 1
P66 Setting of the
machine head tilt
switch
The machine head tilt detection method of the machine head tilt switch is set
with this function setting item.
0 :
Not detected
1 :
Error is detected in the case the signal is LOW
2 :
Error is detected in the case the signal is HIGH
0 to 2
(–)
S 1
*
P68 Maximum sewing
speed
The maximum sewing speed is set with this function setting item. (The MAX
value differs with the type of machine head. MS: 5000; SH: 4500)
100 to MAX
(sti/min)
S
MS : 4000
SH : 3500
Supplementary explanation is added in 4.-(2) Further information about memory switch.
These data are stored in the main board in the control box. Data other than these data are stored in the panel board in the panel.

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JUKI DDL-8000A Specifications

General IconGeneral
Stitch TypeLockstitch
Motor TypeDirect-drive motor
Thread TrimmerAutomatic
Max. Stitch Length5mm
Needle Bar Stroke30.7mm
Lift of the Presser FootBy hand: 5.5mm, By knee: 13mm
Control PanelDigital
LubricationAutomatic

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