No
Item
Description
Setting
range
Indication of function setting
Ref.
page
29 Setting of one-
touch type
reverse feed
solenoid pull-in
time
This function sets the suction time of initial motion of back-tack
solenoid.
50 ms to 500 ms
50 to 500
(ms)
2 9
7 0
30 Function of
reverse feed
stitching on the
way
Function of reverse feed stitching on the way
0 : Normal one-touch type reverse feed stitching function
1 : Function of reverse feed stitching on the way is operative.
0/1
3 0
0
31 Number of
stitches of
reverse feed
stitching on the
way
Number of stitches of reverse feed stitching on the way.
0 to 19
(Stitches)
3 1
4
32 Effective
condition of
reverse feed
stitching on the
way when the
sewing machine
is stopping.
Effective condition of reverse feed stitching on the way
0 : Function is not operative when the sewing machine stops.
1 : Function is operative when the sewing machine stops.
0/1
3 2
0
33 Thread trimming
function by
reverse feed
stitching on the
way
Thread trimming function by reverse feed stitching on the way
0 : Automatic thread trimming function after completion of re-
verse feed stitching on the way is not operative.
1 : Automatic thread trimming after completion of reverse feed
stitching on the way is performed.
0/1
3 3
0
*
35 Number of
rotation at a low
speed
Lowest speed by pedal (The MAX value differs by machine head.) 150 to MAX
(sti/min)
3 5
2 0 0
*
36 Number of
rotation of
thread trimming
Thread trimming speed (The MAX value differs by machine head.) 100 to MAX
(sti/min)
3 6
2 1 0
37 Number of
rotation of soft-
start
Sewing speed at the start of sewing (soft-start) (The MAX value
differs by machine head.)
100 to MAX
(sti/min)
3 7
8 0 0
38 One-shot speed One-shot speed (The max. value depends on the number of rota-
tion of the sewing machine head.)
150 to MAX
(sti/min)
3 8
2 5 0 0
*
39 Pedal stroke
at the start of
rotation
Position where the sewing machine starts rotating from pedal
neutral position (Pedal stroke)
10 to 50
(0.1 mm)
3 9
3 0
*
40 Low speed
section of pedal
Position where the sewing machine starts accelerating from pedal
neutral position (Pedal stroke)
10 to 100
(0.1 mm)
4 0
6 0
*
41 Starting position
of lifting presser
foot by pedal
Position where the cloth presser starts lifting from pedal neutral
position (Pedal stroke)
–60 to –10
(0.1mm)
4 1
– 2 1
*
42 Starting position
of lowering
presser foot
Starting position of lowering presser foot
Stroke from the neutral position
8 to 50
(0.1 mm)
4 2
1 0
*
43 Pedal stroke
2 for starting
thread trimming
Position 2 where the thread trimming starts from pedal neutral
position (When the function of lifting presser foot by pedal is pro-
vided.) (Pedal stroke)
(Effective only when Item No. 50 is set at 1.)
–60 to –10
(0.1 mm)
4 3
– 5 1
*
44 Pedal stroke
for reaching
the maximum
number of
rotation
Position where the sewing machine reaches its highest sewing
speed from pedal neutral position (Pedal stroke)
10 to 150
(0.1 mm)
4 4
1 5 0
*
45 Compensation
of neutral point
of the pedal
Compensation value of the pedal sensor
–15 to 15
4 5
0
47 Auto-lifter
selecting
function
Limitation time of waiting for lifting solenoid type auto-lifter device
10 to 600
(second)
4 7
6 0
*
48 Pedal stroke
1 for starting
thread trimming
Position where thread trimming starts from pedal neutral position
(Standard pedal) (Pedal stroke)
(Effective only when Item No. 50 is set at 0.)
–60 to –10
(0.1 mm)
4 8
– 3 5
49 Lowering time
of presser foot
Sets the time required until the lowering of the presser foot is com-
pleted after a depress on the pedal
0 to 500
(10 ms)
4 9
1 4 0
50 Pedal
specification
Type of pedal sensor is selected.
0 : KFL
1 : PFL
“III-10. Selection of the pedal specifications” p.38
0/1
5 0
1
51 Compensation
of solenoid-
on timing of
reverse feed
stitching at the
start of sewing
Compensation of starting the solenoid for reverse feed stitching
when reverse feed stitching at the start of sewing is performed.
–36 to 36
(10°)
5 1
1 0
52 Compensation
of solenoid-
off timing of
reverse feed
stitching at the
start of sewing
Compensation of releasing the solenoid for reverse feed stitching
when reverse feed stitching at the start of sewing is performed.
–36 to 36
(10°)
5 2
1 6
* Do not change the set values with asterisk (*) mark as they are functions for maintenance. If the standard set value set at the time of
delivery is changed, it is in danger of causing the machine to be broken or the performance to be deteriorated. If it is necessary to
change the set value, please purchase the Engineer’s Manual and follow the instructions.
– 25 –
Содержание SC-921
Страница 1: ...SC 921 INSTRUCTION MANUAL ...
