JUKI SC-920 User manual

SC-920
INSTRUCTION MANUAL
No.04
40087108

i
CONTENTS
I. SPECIFICATIONS........................................................................................ 1
II. SET-UP........................................................................................................ 1
1. Changing over the voltage between 100 V and 200 V .......................................................................2
2. Installing to the table ............................................................................................................................3
3. Installing the control panel ..................................................................................................................3
4. Connecting the cords ...........................................................................................................................5
5. Attaching the connecting rod ............................................................................................................ 11
6. Setting procedure of the machine head ...........................................................................................12
7. Adjusting the machine head (direct-drive motor type sewing machine only) .............................. 13
III. FOR THE OPERATOR............................................................................. 14
1. Operating procedure of the sewing machine...................................................................................14
2. Operation panel (CP-18) .....................................................................................................................16
3. Operating procedure of the sewing pattern .....................................................................................17
(1) Reverse feed stitching pattern..................................................................................................... 17
(2) Overlapped stitching pattern ....................................................................................................... 18
4. One-touch setting ...............................................................................................................................19
5. Production support function .............................................................................................................20
6. Setting of functions of SC-920...........................................................................................................23
7. Function setting list............................................................................................................................24
8. Detailed explanation of selection of functions ................................................................................28
9. Automatic compensation of neutral point of the pedal sensor ...................................................... 38
10. Selection of the pedal specications................................................................................................ 38
11. Setting of the auto lifter function....................................................................................................... 39
12. Selecting procedure of the key-lock function .................................................................................. 40
13. Connection of the pedal of standing-work machine........................................................................40
14. External input / output connector...................................................................................................... 41
15. Connection of the material end sensor ............................................................................................42
16. Initialization of the setting data ......................................................................................................... 43
IV. MAINTENANCE....................................................................................... 43
1. Removing the rear cover....................................................................................................................43
2. Replacing the fuse ..............................................................................................................................44
3. Error codes..........................................................................................................................................45

– 1 –
I. SPECIFICATIONS
Supply voltage Single phase 100 to 120V 3-phase 200 to 240V Single phase 220 to 240V
Frequency 50Hz/60Hz 50Hz/60Hz 50Hz/60Hz
Operating envi-
ronment
Temperature : 0 to 40˚C
Humidity : 90% or less
Temperature : 0 to 40˚C
Humidity : 90% or less
Temperature : 0 to 40˚C
Humidity : 90% or less
Input 320VA 320VA 320VA
* The power consumption values shown in the above table are reference values in the case the main body of the
sewing machine used with the SC-920 is DDL-9000B.
The power consumption differs with the machine head to be selected.
SC-920 is a discrete control box and can be used with the DD (direct-drive) system sewing machine head.
To use a compact motor unit, the motor unit has to be installed on the table in prior to the installation of the control
box on it. To connect the SC-920 to a compact motor, assemble them referring to "M92 SUPPLEMENTARY SET-
UP INSTRUCTIONS".
In the case the SC-920 is used for the DD (direct-drive) type sewing machine head, install the control box on the
table following the instructions give below.
SC-920 control box
II. SET-UP
SC-920 control box (For installing the compact motor)

– 2 –
Depending on specications of the control box, the
number of phases and the voltage of the power supply
can be changed over among "single-phase 100 - 120 V,"
"single-phase 200 - 240 V" and "3-phase 200 - 240 V."
① Replacement of the power cords
② Changing-round of connector ❶ on the PWR PCB
1) Turn OFF the power with the power switch after
checking that the sewing machine has stopped.
2) Draw out the power cord from the power recepta-
cle after checking that the power switch has been
turned OFF. Then wait for 5 minutes or more.
3) Loosen the screws which x the cover of the control
box. Open the cover in a slow manner.
4) Changing procedure of the power voltage
(Caution) If the supply power changing is carried out
in a wrong manner, the control box can
break. Be extremely careful when taking the
supply voltage changing procedure.
A. To change over the supply voltage from 200 -
240 V to 100 - 120 V
• Change the power cord with the JUKI genu-
ine cord with the part number (M90355800A0).
Change the earth cord with the one with the part
number (M90345800A0).
• Change over supply voltage changeover connec-
tor ❶ mounted on the PWR PCB with the connec-
tor for 100 V.
• Connect the crimp style terminal of AC input cord
to the power plug as shown in the gure A.
B,C. To change over the supply voltage from 100 -
120 V to 200 - 240 V
• Change the power cord with the JUKI genuine
cord with the part number (M90175800A0).
• Change over supply voltage changeover connec-
tor ❶ mounted on the PWR PCB with the connec-
tor for 200 V.
• Connect the crimp contact of the AC input cord
to the power plug as illustrated in Fig. B for the
3-phase power supply or as illustrated in Fig. C for
the single-phase one.
5) Before closing the door, check to be sure again that
the voltage has been changed without mistake.
6) Close the back lid and secure with the screws
pressing the lid, while taking extra care to prevent
the cord from being caught between the cover and
the main body of the control box.
Wiring for the 3-phase 200 V
B
C
(Plug side)
WHITE
BLACK
RED
GREEN/
YELLOW
WHITE
BLACK
RED
GREEN/
YELLOW
(Plug side)
WHITE
BLACK
RED
GREEN/
YELLOW
GREEN/
YELLOW
1
2
3
WHITE
BLACK
Wiring for the single-phase 200 V
Be sure to connect the wire between 1 and 2.
If it is connected between 1-3 or 2-3, the sewing
machine will be inoperative.
(Caution)
Be sure to remove the connec-
tor while holding its locking
section with your ngers. Be
extremely careful not to pull
the connector forcibly.
Locking section
(Box side)
(Box side) 1
2
3
1. Changing over the voltage between 100 V and 200 V
WARNING :
To prevent personal injuries caused by electric shock hazards or abrupt start of the sewing machine,
carry out the work after turning OFF the power switch and a lapse of 5 minutes or more. To prevent
accidents caused by unaccustomed work or electric shock, request the electric expert or engineer of
our dealers when adjusting the electrical components.
❶
A
* The illustration below shows the PWR-T PCB.
The type of PCB differs by destination.
(Plug side)
WHITE
BLACK
RED
GREEN/
YELLOW
WHITE
BLACK
GREEN/
YELLOW
Wiring for the single-phase 100 V
Be sure to connect the wire between 1 and 2.
If it is connected between 1-3 or 2-3, the sewing
machine will be inoperative.
(Box side)
1
2
3

– 3 –
❶
2. Installing to the table
In the case the SC-920 is used for the DD (direct-drive) type sewing machine head, install the control box on the
table following the instructions give below.
The description given below refers to the case
the SC-920 is installed on the table of the
DDL-9000B. To use any other machine head,
install the control box on the table referring to
the Instruction Manual for the main body of
the relevant sewing machine.
1) Install the control box to the table with the
tting bolt (asm.) ❶supplied with the unit
as accessories. At this time, insert the
nut and washer supplied with the unit as
accessories as shown in the gure so that
the control box is securely xed.
2) After having installed the control box (and
the compact motor) on the table, mount the
sewing machine head on the table. (Refer
to the Instruction Manual for the sewing
machine to be used.)
Plain washer Spring
washer Hexagonal
nat
3. Installing the control panel
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the
following work after turning the power off and a lapse of 5 minutes or more.
1) Remove side plate setscrews ❶from the side
plate.
❶
2) Install control panel ❷on the machine head using
screws ❺, at washers ❸and rubber seat ❹sup-
plied with the control panel as the accessories.
(Caution) 1. DDL-9000B (Not provided with AK) is giv-
en as an example of installing procedure.
2. Screw to install the panel changes ac-
cording to the machine head used. Refer
to Table 1 (p.4) and conrm the kind of
screw.
❷
❹
❺
❸

– 4 –
< The relation between the respective machine heads and the positions of installing hole of the bracket are
as described in the table. >
Installing hole Screw
DDL-9000B ①- ⑤(Provided with AK) M5 × 14 Side plate setscrew
(Not provided with AK) M5 × 12
LH-3500A ②- ⑤M5 × 14 Side plate setscrew
DLN-9010 ②- ⑤3/16-28 L=12 Screw supplied with panel as accessories
DDL-8700 series ③- ⑤3/16-28 L=12 Screw supplied with panel as accessories
DDL-5500 series *1 ③- ⑤3/16-28 L=12 Screw supplied with panel as accessories
LZ-2280 series *1 ③- ⑤11/64-40 L=7.8 Screws supplied with machine head
Table 1
*1 For the DDL-5556 and LZ-228*, the machine head is supplied with an auxiliary bracket for mounting the control panel
as an accessory. Be sure to install the bracket while referring to the instruction manual for the machine head.
①②⑤ ⑥③ ④
(Caution) 1. Screws to be used for installing the panel differ with the machine head, i.e., screws supplied with
the panel as accessories and the side plate setscrews. Select appropriate screws/setscrews refer-
ring to Table 1.
2. If the screw type is not correct, the tapped hole can be collapsed.
3. If you want to install the panel on the DDL-8700, be aware that the method to install it on the ma-
chine head differs depending on whether or not the machine head is provided with the AK device.
Machine head with the AK device: Install the panel on the head bracket supplied with the AK.
(The auxiliary bracket should be xed with the side plate set-
screws.)
Machine head without the AK device: Remove the side plate setscrews and install the panel on
the side plate using the screws supplied with panel as
accessories.
4. If you want to use the panel with the machine head for heavy-weight materials, install it referring to
the "Supplementary Instructions" for the machine head.

– 5 –
WARNING :
• To prevent personal injury caused by abrupt start of the sewing machine, carry out the work after
turning OFF the power switch and a lapse of 5 minutes or more.
• Topreventdamageofdevicecausedbymaloperationandwrongspecications,besuretocon-
nectallthecorrespondingconnectorstothespeciedplaces.(Ifanyoftheconnectorsisinserted
into a wrong connector, not only the device corresponding to the connector can break but also it
can start abruptly, inviting the risk of personal injury.)
• To prevent personal injury caused by maloperation, be sure to lock the connector with lock.
• As for the details of handling respective devices, read carefully the Instruction Manuals supplied
with the devices before handling the devices.
4. Connecting the cords
The SC-920 is provided with the connectors listed below. Connect the sewing-machine connectors to the corre-
sponding control-box connectors according to the devices installed on the sewing machine.
(Caution) FortheSC-920Series,themachineheadtobeusedwithistobeselectedinthecourseofthefunc-
tion setting procedure. To prevent an insertion error, remove the resistor pack for the machine head
selection before use.
❶CN30 Motor signal connector
❷CN38
Operation panel: Various kinds of sewing can
be programmed. (For details of the operation
panel other than CP-18, refer to the Instruction
Manual for the panel to be used.)
❸CN33 Synchronizer : It detects the needle bar
position.
❹CN37 Presser foot lifting solenoid (Only for the
automatic presser foot lifter type)
❺CN48 Safety switch (standard) : When tilting the
sewing machine without turning the power
OFF, the operation of the sewing machine is
prohibited so as to protect against danger.
❻CN42 Thread trimming safety switch
❼CN39
Standing machine pedal : JUKI standard
PK70, etc. Sewing machine can be controlled
with external signals.
❽CN55
+24 V external power source
❾CN57
Simplied production control counter input
󱢳CN36
Machine head solenoid: Provided with sole-
noids for thread trimming, reverse feed stitch-
ing, one-touch type reverse feed switch.
󱢴CN54
Material end detection sensor, etc.
󱢵CN51
Optional function/device input/output.
󱢶CN34
Pedal sensor: The pedal sensor supplied with
the SC-920 is to be connected to this connec-
tor to operate the sewing machine
.
❽
󱢳❹❾❼❷❺❶
❸
❻
󱢴
󱢶
󱢵

– 6 –
3) Connect 14P code ❸coming from
the machine head to connector ❻
(CN36).
4) When the optional AK device is
attached, connect 2P connector ❹
coming from the AK device to con-
nector ❼ (CN37).
5) Connect connector ❺coming from
the motor to connector ❽ (CN30) on
the circuit board.
6) Insert 4P cord ❾coming from the ma-
chine head into connector 󱢳 (CN48).
(Caution) 1. When using the AK device, set whether to use the AK device after conrming how to select the
auto-lifter function. (Refer to “III-11. Setting of the auto lifter function” p.39.)
2. Be sure to securely insert the respective connectors after checking the inserting directions since
all connectors have the inserting directions. (When using a type with lock, insert the connectors
until they go to the lock.) The sewing machine is not actuated unless the connectors are inserted
properly. In addition, not only the problem of error warning or the like occurs, but also the sewing
machine and the control box are damaged.
[Connecting the connector for the operation panel]
The SC-920 is provided with a connector for the op-
eration panel. Fully insert connector 󱢴into connector
(CN38) 󱢵 on the PWB until it locks without fail while
carefully checking the orientation of connector 󱢴.
(Caution) Be sure to turn OFF the power before con-
necting the connector.
1) Pass cords ❶of the thread trimming solenoid,
reverse-stitching solenoid, etc. and the cord from
the motor through hole Ain the table to route them
down under the machine table.
2) Loosen screw Bin cover ❷with a screwdriver to
open the cover.
❷
B
❼
❹
❺
❽
❸
❻󱢳
❾
󱢵
󱢴
❶
A
❶
❶
❶❶

– 7 –
7) After inserting the connector, put all cords together
with cable clip band 󱢸located on the side of the
box.
(Caution) 1. Fix the cord clamp and the cable clip
band following the attaching proce-
dure.
2. When removing the connector, re-
move it from the wire saddle and
remove it while pressing the hook of
the cable clip band.
[ Connection of the pedal of standing-work machine ]
Connect the connector of PK70 󱢶to connector 󱢷
(CN39 : 12P) of SC-920.
(Caution) Be sure to turn OFF the power before
connecting the connector.
8) Close cover ❷ and x the cover by tightening screw
Bwith a screwdriver.
(Caution) Take care not to allow the cord to be
caught under cover ❷.
❷
B
How to x cable clip band How to remove cable clip band
Pushing the
hook portion,
push the band
to remove it.
Pull Push
Push the
hook.
Panel Panel
9) Connect connector 4P 󱢹to connector 󱢺 locat ed
on the side of the box.
10) Connect motor outpu t cord 󱢻of the power switch to
connector 󱢼.
11) Bundle the machine head cables with a cable clip
󱢽supplied with the operation panel at one location
as shown in the gure.
󱢷
󱢶
󱢸
󱢺󱢻
󱢼
󱢹󱢽

– 8 –
Connect motor output cord 󱢾to connector 󱢿locat-
ed on the side of the box.
CE 1ø 230V
AC
220V-240V
Installing power switch
Connect power supply cord to the power switch.
[CE specications]
Single phase 230V : Power supply cords : Brown, Blue,
and green/yellow (ground wire)
(Caution) 1. Be sure to prepare the power plug
which conforms to the safety stan-
dard.
2. Be sure to connect the earth cable
(green/yellow) properly.
Brown
Blue
Green / Yellow
(ground wire)
[For CE specications only]
󱢿
󱢾
12) Connect the power supply cord to the power plug
socket. Connect, as shown in the gure, the white
and black (and red) conductors or the brown and
blue conductors to the power supply side and the
green/yellow conductor to the grounding side.
(Caution) 1. Be sure to prepare the power plug
which conforms to the safety stan-
dard.
2. Be sure to connect the earth cable
(green/yellow) properly.
3ø 200V-240V
1ø 100V-120V
220V-240V
AC 200V-240V
Black
Red
White
Green / Yellow
(ground wire)
Black
White
Green / Yellow
(ground wire)
AC 100V-120V
AC 220V-240V

– 9 –
[In case of using the power switch for LA]
Connect motor output cord 󱢾to connector 󱢿located
on the side of the box.
Installing power switch
Connect power supply cord to the power switch.
[LA specications]
3-phase 220 V : Power supply cords : black, white,
red and green/yellow (ground wire)
Single phase 120V : Power supply cords : black, white,
and green/yellow (ground wire)
(Caution) 1. Be sure to prepare the power plug which
conforms to the safety standard.
2. Be sure to connect the earth cable
(green/yellow) properly.
3ø 220V
AC
200V-240V
Black
Red
White
Green / Yellow
(ground wire)
1ø 120V
AC
100V-120V
Black
White
Green / Yellow
(ground wire)
When the metallic conduit is used, be sure to change over the power cord section following the steps of procedure
described below.
(Caution) Be sure to carry out this procedure before installing the control box on the machine table.
①
Place the control box with its frame side down on
the machine table as illustrated in the sketch.
②
Loosen screw
B
in underside cover
A
to open the
cover.
A
B
③
Change over the cord shown in the circle following
the steps of procedure described below.
④
Remove two screws
C
to remove clamping plate
D
from the main body of the control box.
C
D
E
F
F
⑤
Remove connector
E
while holding its locking sec-
tion
F
with your ngers.
󱢾
󱢿

– 10 –
⑥
Turn connector
G
to remove the cord locking sec-
tion.
⑦
Loosen nut
H
to remove the connector from clamp-
ing plate
D
.
⑧
Put locknut
I
on the power cord and draw out the
cord
J
from inside clamping plate
D
.
G
H
D
I
D
J
K
I
ID
J
J
⑨
Install clamping plate
D
back to the control box.
⑩Pass power cord
J
through conduit
K
.
⑪Fix conduit
K
with locknuts
I
with clamping plate
D
placed between the locknuts.
⑫Close underside cover
A
and secure the cover with
screw
B
.
A
B
󱣀
13) Make sure that the power switch is turned OFF and
insert power supply cord coming from the power
switch into the power plug socket.
(Caution) Top end of power supply cord 󱣀varies
in accordance with destination or supply
voltage. Check again the supply voltage
and the voltage designated on the con-
trol box when installing the switch.

– 11 –
5. Attaching the connecting rod
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the
following work after turning the power off and a lapse of 5 minutes or more.
1) Fix connecting rod ❶to installing hole Bof pedal
lever ❷with nut ❸.
2) Installing connecting rod ❶to installing hole Awill
lengthen the pedal depressing stroke, and the pedal
operation at a medium speed will be easier.
❹
❺
3) The pressure increases as you turn reverse de-
pressing regulator screw ❹in, and decreases as
you turn the screw out.
(Caution) 1. If the screw is excessively loosened, the
spring will come off.
Loosen the screw to such an extent that
the top of the screw can be observed
from the case.
2. Whenever you have adjusted the screw,
be sure to secure the screw by tightening
metal nut ❺to prevent the screw from
loosening.
❶
❷
BA
❸

– 12 –
6. Setting procedure of the machine head
(Caution) For the operation panel other than CP-18, refer to the Instruction Manual for the operation panel to be
used for the setting procedure of the machine head.
1) Refer to “III-6. Setting of functions of
SC-920” p.23, and call the function
setting No. 95.
2) The type of machine head can be se-
lected by pressing switch
❺
(
switch
❻
).
* Refer to the "MACHINE HEAD LIST"
on the separate sheet or the Instruction
Manual for the machine head of your
sewing machine for the type of the
machine head.
3) After selecting the type of machine
head, by pressing switch ❸ (
switch ❹), the step proceeds to 96
or 94, and the display automatically
changes to the contents of the setting
corresponding with the type of machine
head.
❻
❺❹❸
❻
❺❹❸
❻
❺❹❸

– 13 –
❽
❻
❺❹❸
❻
❺❹❸
❻
❺❹❸
Ⓐ
7. Adjusting the machine head (direct-drive motor type sewing machine only)
(Caution) When the slip between the white marker dot on the handwheel and the concave of the cover is ex-
cessive after thread trimming, adjust the angle of the machine head by the operation below.
1) Simultaneously pressing switch ❹
and switch ❺, turn ON the power
switch.
2) is displayed ( Ⓐ) in the indica-
tor and the mode is changed over to
the adjustment mode.
3) Turn the pulley of the machine head
by hand until the main-shaft reference
signal is detected. At this time, the
degree of an angle from the main-shaft
reference signal is displayed on the in-
dicator Ⓑ. (The value is the reference
value.)
4) In this state, align the white dot ❼of the handwheel
with the concave ❽of the pulley cover as shown in
the gure.
Ⓑ
5) Press switch ❻ to nish the
adjustment work. (The value is the
reference value.)
❼

– 14 –
❹
❸
❺
❶
III. FOR THE OPERATOR
1. Operating procedure of the sewing machine
1) Press ON button ❶ of the power switch to turn ON
the power.
(Caution) If the power indicator LED on the panel
does not light up after having turned ON
the power switch, immediately turn OFF the
power switch and check the supply voltage.
In addition, in such a case as this, re-turn
ON the power switch when 2 to 3 minutes
or more have passed after turning OFF the
power switch.
2) When the needle bar is not in UP position, it auto-
matically turns to the UP position.
(Caution) When turning ON the power for the rst
time, there is the case where the timing is
slightly retarded to perform the initializa-
tion work. When turning ON the power, the
needle bar moves. Do not put your hands or
things under the needle.
PFL KFL
Presser foot operation by pedal Enabled Disabled
Pedal depressing depth for thread trimming Deep Shallow
3) The pedal is operated in the following four steps:
a. The machine runs at low sewing speed when you
lightly depress the front part of the pedal. ❸
b. The machine runs at high sewing speed when you
further depress the front part of the pedal. ❸
(If the automatic reverse feed stitching has been
preset, the machine runs at high speed after it com-
pletes reverse feed stitching.)
c. The machine stops (with its needle up or down)
when you reset the pedal to its original position.
d. The machine trims threads when you fully depress
the back part of the pedal. ❺
* When the auto-lifer (AK device) is used, one more operating switch is provided between the sewing machine
stop switch and thread trimming switch. The presser foot goes up when you lightly depress the back part of the
pedal ❹, and if you further depress the back part ❺, the thread trimmer is actuated.
When starting sewing from the state that the presser foot has been lifted with the Auto-lifter and you depress
the back part of the pedal, the presser foot only comes down.
• If you reset the pedal to its neutral position during the automatic reverse feed stitching at seam start, the ma-
chine stops after it completes the reverse feed stitching.
• The machine will perform normal thread trimming even if you depress the back part of the pedal immediately
following high or low speed sewing.
• The machine will completely perform thread trimming even if you reset the pedal to its neutral position immedi-
ately after the machine started thread trimming action.

– 15 –
❼
❷
❻
6) When sewing is completed, press OFF button ❷of
the power switch to turn OFF the power switch after
conrming that the sewing machine has stopped.
5) For some types of the sewing machine heads,
reverse feed is performed by pressing touch-back
switch ❼. (The gure given illustrates the case of
the DDL-9000B.)
4)
For some types of the sewing machine heads, it
is possible to program various sewing patterns,
using the operation panel, such as the reverse feed
stitching at sewing start and that at sewing end.
Refer to “III-3. Operating procedure of the sewing
pattern” p.17 for details when using CP-18
❻
. For
the operation panel other than CP-18
❻
, refer to
the Instruction Manual for the operation panel to be
used. (The figure given illustrates the case of the
DDL-9000B.)

– 16 –
❸
❶
ⒶⒷ
❹ ❺ ❻❷
Ⓒ
Ⓓ
❼
Ⓔ
2. Operation panel (CP-18)
❶ switch : Used for changing over effective/ineffective of the reverse feed stitching pattern.
❷ switch : Used for changing over effective/ineffective of the overlapped stitching pattern.
❸ switch : Used for conrming the contents of setting and for changing over effective/ineffective of the
reverse feed stitching at sewing start.
❹ switch : Used for selecting the process (A, B, C, D) the number of stitches for which is to be changed.
* The selected process ashes on and off.
❺ switch : Used for changing the content of the selected display (ashing section) and for changing over
effective/ineffective of the reverse stitch at sewing end.
❻ switch : Used for changing the content of the selected display (ashing section).
❼ switch : Used to call the production support function or one-touch setting (by keeping the switch held
pressed for one second).
Indicators Ⓐand Ⓑ : Various pieces of information are displayed.
LED Ⓒ: Lights up when the reverse feed stitching pattern is effective.
LED Ⓓ: Lights up when the overlapped stitching pattern is effective.
LED Ⓔ: Lights up when the production support function is displayed.

– 17 –
❻
❺❹❸
❶
❷❼
Ⓒ
Ⓑ
Ⓐ
Ⓓ
3. Operating procedure of the sewing pattern
Without reverse
stitching
Reverse
stitching
Double reverse
stitching
(Caution) For the operation panel other than CP-18, refer to the Instruction Manual for the operation panel to be
used.
(1) Reverse feed stitching pattern
Reverse feed stitching at sewing start and reverse feed stitching at sewing end can be separately programmed.
[Setting procedure of the reverse feed stitching]
1) Effective/ineffective of the reverse feed
stitching pattern can be changed over
by pressing switch ❶.
When the reverse feed stitching
pattern is rendered effective, LED Ⓒ
lights up, the number of stitches of the
reverse feed stitching at sewing start
is displayed on Ⓐ, and the number of
stitches of the reverse feed stitching at
sewing end is displayed on indicator Ⓑ.
Select a process (A, B, C or D) the
number of stitches for which is to be
changed by using switch ❹.
2) When the number of reverse feed
stitches display is not ashing on and
off, every press on switch ❸
changes over the reverse feed stitching
mode from the "reverse feed stitching
at sewing start," "double reverse feed
stitching at sewing start" and "no re-
verse feed stitching at sewing start."
In addition, every time switch ❺
is pressed, the reverse feed stitching
feature changes over from the reverse
feed stitching at sewing end to the dou-
ble reverse stitch at sewing end, then to
no reverse feed stitching at sewing end,
in turn.
(Caution) For some types of the machine
head, reverse feed stitching
patterns are not available.
The number which is ashing on and off represents the process which is being set.
Change the number of stitches for the selected process by using switch ❺and switch ❻.
Press switch ❸ to conrm the change you have made. (The number of stitches that can be set is 0 to 15.)
(Caution) The sewing machine cannot perform sewing when the display of the number of stitches for a process
is ashing on and off.
❻
❺❹❸
❶Ⓑ
Ⓐ
❷❼
Ⓒ
Ⓓ

– 18 –
❻
❺❹❸
❶
❷❼
Ⓒ
Ⓐ
Ⓓ
A : Number of stitches of normal stitching setting
0 to 15 stitches
B : Number of stitches of reverse stitching setting
0 to 15 stitches
C : Number of stitches of normal stitching setting
0 to 15 stitches
D : Number of times of repetition
0 to 9 times
(Caution) When process D is set to 5 times, the sewing is repeat-
ed as A → B → C → B → C.
Ⓑ
(2) Overlapped stitching pattern
Overlapped stitching pattern can be programmed.
[Setting procedure of the overlapped
stitching]
1) Effective/ineffective of the overlapped
stitching pattern can be changed over
by pressing switch ❷.
When the overlapped stitching pattern
is rendered effective, LED Ⓓ lights up.
2) Select a process (A, B, C or D) the
number of stitches for which is to be
changed by using switch ❹.
The number which is ashing on and
off represents the process which is
being set.
A
B
C
B
C
D
3) Change the number of stitches for the selected process by using switch ❺and switch ❻.
4) Press switch ❸ to conrm the change you have made.
(The sewing machine does not run unless the setting has been conrmed by pressing switch ❸.)
(Caution) The overlapped stitching pattern is carried out under automatic operation mode. Once the pedal is de-
pressed, the sewing machine will automatically perform sewing of the number of overlapped stitches.