JUKI SC-910N Instruction Manual

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ENGLISH

SC-910N

INStruCtIoN MaNuaL

. SPECIFICATIONS ..................................................................................... 1

. SET-UP ...................................................................................................... 1

1. Installing M91 small sized motor unit ............................................................................................... 1

2. Installing to the table ..........................................................................................................................2

3. Adjusting the belt (when M91 is used) ..............................................................................................2

4. Adjusting the belt cover (when M91 is used) ...................................................................................3

5. Connecting the cords .........................................................................................................................4

6. Attaching the connecting rod .......................................................................................................... 11

7. Setting procedure of the machine head .........................................................................................12

8. Machine head list ..............................................................................................................................13

9. Adjusting the machine head (DDL-9000A only) .............................................................................14

. FOR THE OPERATOR ............................................................................ 15

1. Operating procedure of SC-910N .................................................................................................... 15

2. Explanation of the operation panel .................................................................................................17

3. Operating procedure of the sewing pattern ...................................................................................18

(1) Reverse stitching pattern ..............................................................................................................18

(2) Overlapped stitching pattern ......................................................................................................... 19

(3) Special setting ..............................................................................................................................20

4. Setting for functions of SC-910N .....................................................................................................22

5. Function setting list .......................................................................................................................... 24

6. Detailed explanation of selection of functions ..............................................................................31

7. Automatic compensation of neutral point of the pedal sensor ................................................... 40

 8.Selectionofthepedalspecications .............................................................................................. 40

9. Setting of the auto lifter function ....................................................................................................41

10. Connection of the pedal of standing-work machine .....................................................................41

11. External input / output connector ...................................................................................................42

12. Connection of the material end sensor (ED) ..................................................................................42

13. Initialization of the setting data ....................................................................................................... 43

. MAINTENANCE ...................................................................................... 44

1. Removing the rear cover .................................................................................................................. 44

2. Replacing the fuse ...........................................................................................................................44

3. Error codes ........................................................................................................................................ 45

. SPECIFICATIONS

Supply voltage Single phase 100 to 120V 3-phase 200 to 240V Single phase 200 to 240V

Frequency 50Hz/60Hz 50Hz/60Hz 50Hz/60Hz

Operating envi-

ronment

Input 350VA 350VA 350VA

. SET-UP

SC-910N control box can be used for DD (direct-drive) system machine head and the belt-drive system

machine head by connecting the separately-available small-sized motor unit (M91).

When using the small-sized motor unit, it is necessary to install the motor unit to the control box before in-

stalling the control box to the table.

Install the motor unit to the control box following the instructions below.

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

ENGLISH

SC-910N control box

1. Installing M91 small sized motor unit

M91 small-sized motor unit (separately-available article)

1) Lay down the control box while the rear cover is

placed under the control box.

2) Remove tie-mount A.

3) Adjust the hole section of the installing base of

M91 to the hole section of the installing plate.

4) Temporarily tighten ve places with counter-sunk

screws 1 supplied with the unit as accessories.

5) Securely tighten them with hexagonal wrench

key

(Caution) 1. W h e n tighten i n g t he screw, se-

2. Hexagonal wrench key is attached

3. Be careful that the motor shaft does

supplied with the unit as accessories.

curely insert the hexagonal wrench

key into the screw hole section to

tighten.

to M91.

not hit against anything. (If a strong

shock is given to the motor shaft,

there is the possibility that the mo-

tor is damaged.)

– 1 –

2. Installing to the table

Plain washer

Spring washer

Hexagonal nat

1) Install the control box to the table with the tting

bolt (asm.) supplied 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) Set the machine head to the table after installing the control box (or with small-sized motor) to the

table. (Refer to Instruction Manual for the sewing machine.)

3. Adjusting the belt (when M91 is used)

1) Adjust the belt tension by turning upper and lower

nuts 1of the adjustment bolt and adjusting the

height of the center of the motor so that the belt

sags 15 mm (9.8N) when the center of the belt is

pressed by hand.

(Caution) 1. When the belt tensi o n i s exces-

Approx. 15mm / 9.8N

sively low, medium or low speed

rotation becomes uneven, or stop

accuracy is deteriorated. When the

tension is excessively high, dete-

rioration of the motor is advanced.

So, be careful.

– 2 –

4. Adjusting the belt cover (when M91 is used)

1) Adjusting the clearance of the cover

Loosen cover setscrew 1 and adjust so that the

left and right clearances between the belt cover

and the belt are equal to each other.

(Caution) 1. Perform the adjustment of the cov-

2) Adjusting the roll-in prevention pin

Adjust the roll-in prevention pin with the hexago-

nal wrench key supplied with the unit as acces-

sories so that the clearance between the belt and

roll-in prevention pin 2 is approximately 4 mm.

4mm

3mm

(Caution) 1. Be careful of the direction of rota-

2. Perform the adjustment of the cov-

3) Adjusting the off-belt prevention pin

Adjust the off-belt prevention pin with the hexag-

onal wrench key supplied with the unit as acces-

sories so that the clearance between the belt and

off-belt prevention pin 3 is approximately 3 mm.

(Caution) 1. Perform the adjustment of the cov-

4) Installing the belt cover

Adjust the notch section of the pulley outer cover

4

er and insert the outer cover to the inner cover.

er with the hexagonal wrench key

supplied with the unit as accesso-

ries. At this time, be careful that the

screw is not excessively loosened.

ENGLISH

tion of the motor and determine the

position of the pin. (Position shown

in the figure is the installing posi-

tion when the motor rotates in the

direction of the arrow mark.)

er with the hexagonal wrench key

supplied with the unit as accesso-

ries. At this time, be careful that the

screw is not excessively loosened.

er with the hexagonal wrench key

supplied with the unit as accesso-

ries. At this time, be careful that the

screw is not excessively loosened.

to the gap of screw 5 of the pulley inner cov-

5) Tighten screw 5 to complete the adjustment of

the cover.

– 3 –

5. Connecting the cords

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 specifications, be sure to

connectallthecorrespondingconnectorstothespeciedplaces.

• 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.

Optional unit A

Following connectors are prepared on the front face of SC-910N. Connect the connectors coming from the

machine head to the corresponding places so as to t the devices mounted on the machine head.

CN30 Synchronizer : it detects the needle bar

position.

CN35 CP-170 panel : Various kinds of

programmed sewing can be executed.

(Refer to the Instruction Manual for each

panel for the details of functions.)

CN31 Machine head connector 4P

CN42 External input/output connector : input/

output of up/down detection signal, rotation prohibition signal, etc. is prepared.

CN48 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.

Optional switch : by changing over the

internal functions, 6 kinds of functions can

be selected.

CN40 Presser foot lifter solenoid. (For automatic

presser foot lifter type only)

CN46

CN47 Optional circuit board connection connector

Machine head solenid : Thread trimming, reverse-

stitching solenoid, touch-back switch, etc.

: Required when using JUKI standard bobbin thread remaining amount detection sensor, etc.

CN39 Motor signal connector

CN32 Standing machine pedal : JUKI standard

PK-70, etc. Sewing machine can be controlled with the external signal.

CN34 IP-110 panel (LCD panel) : Various kinds of

!1

programmed sewing can be executed.

CN45 Material end detection sensor ED-5, etc.

CN43 Fan

* By adding the optional unit A, the following optional

devices of JUKI standard can be connected.

CN128 Left/right needle detection

CN127 Thread holding, thread suction, thread

drawing

CN122 Needle cooler (bottom fan)

CN121 Bobbin thread remaining amount detection

CN120 +24V external power source

CN123 Needle/bobbin thread remaining amount

detection sensor

CN125 External interface I/F D/A Input

CN126 Left/right lock SW, LED

CN129 Thread holding, thread suction, thread

drawing, bobbin thread remaining amount detection.

– 4 –

1) P a s s th e co rd s 1 o f t he t h r e a d t ri m m i ng

solenoid, reverse-stitching solenoid, etc., and

the cords of the synchronizer 2, safety switch

, machine head 4P connector 4, motor signal

, motor output 6 through hole A in the table to

route them down under the machine table.

2) Loosen setscrew 8 in front cover 7.

3) Pressing the side of front cover 7 in the direction

of the arrow, open the front cover toward you.

Note : Be sure to open / close the front cover

with your hands.

4) Connect 14P code 1 coming from the machine head to connector A (CN46).

5) Connect 4P connector coming from the machine head 4 to connector B (CN31). (It is not necessary in case of DDL-9000A.)

6) Connect 4P connector 3 (safty switch connector) coming from the machine head to connector

(CN48).

7) Connect 7P connector 2 coming from the ma-

chine head to connector D (CN30).(It is not nec-

essary in case of DDL-9000A.)

8) Connect connector 5 coming from the machine head (motor) to connector E (CN39).

9) When the optional AK138 device is attached, connect 2P connector 9 coming from the AK device to connector F (CN40).

ENGLISH

(Caution) 1.

WhenusingtheAKdevice,setwhethertousetheAK device after conrming how to

select the auto-lifter function. (Refter to “#-9. Setting of the auto lifter function” p. 41.)

2. Be sure to securely insert the respective connectors after checking the inserting di-

rections 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.

– 5 –

10) Fix all cables coming from the machine head

with cable clip band !0 attached to tie-mount !1.

[ Connection of the connector for CP panel ]

Exclusive connectors are prepared for connection of

the connector for CP-170.

Paying attention to the orientation of the connec-

tor, connect it to connector B located on the circuit

board. After connecting, securely lock the connector.

[ Connecting for IP panel ]

The connector for connecting IP-110 is prepared.

When connecting, insert the connector until it is

locked to C.

11) After inserting the connector, put all cords to-

gether with cable clip band !2 located on the side

of the box.

At this time, bundle the connectors which are

arranged above the wire saddle to wire saddle

and those which are arranged below the wire

saddle to wire saddle !4.

(Caution) 1. Fix the cord clamp and the cable

clip band following the attaching

procedure.

2. When removing the connector, re-

move it from the wire saddle and

remove it while pressing the hook

of the cable clip band.

– 6 –

Howtoxcableclipband

Pull

(Caution) 1. Fix the cable clip band following

the attaching procedure as shown

inthegure.

2. To r emov e the c able c lip b a n d,

pu sh the c able clip band u ntil it

comes off while pressing the hook

of the band following the removing

procedureasshowninthegure.

How to remove cable clip band

Push

Pushing the hook portion, push the band to remove it.

Push

Push the hook.

12) Close front cover 7 while paying attention to

pinching of the wire.

Lightly press portion D and insert front cover

7

with “click”.

13) After that, x it with the screw 8.

ENGLISH

14) Connect motor output cord 6 to connector G

located on the side of the box. Connect connec-

tor 4P !5 of the power switch to connector H.

(Caution) Route the motor output cord from the

front face of the box.

– 7 –

[ForCEspecicationsonly]

15) Remove three screws 1 located on the side of

the control box.

16) Set power source cord set 3 and installing plate 4 supplied with the unit as accessories as

shown in the gure, and x them to the control

box main unit with three setscrews 2 which have been removed.

17) Connect connector 5 coming from the power

source cord to lower connector 6 after checking

the direction.

(Caution) When rubber bush 7 is off the install-

ing plate, adjust it to the groove of the

installing plate and insert it.

18) Connect motor output cord 8 to connector 9 located on the side of the box.

19) Fix power source cover !0 supplied with the unit using two screws !1 supplied with the unit.

(Caution) At this time, be careful so that the motor output cord is not caught by the power source

cover and so that the cord enters the recess of the power source cover.

CE 1ø 230V

Brown

Blue

Green / Yellow

(ground wire)

220V-240V

20) 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)

– 8 –

[Power voltage changeover procedure (power voltage setting procedure)]

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.

It is adaptable to the voltage of single phase 100V to 120V/3-phase 200V to 240V by changing the voltage changeover connector mounted on FLT p.c.b.

(Caution) When the changing procedure is wring, the control box will be broken. So, be very careful.

Changing procedure of the changeover connector

1. Turn OFF the power source with the power switch after

conrming that the sewing machine has stopped.

2. Draw out the power cord from the power plug socket after conrming that the power switch is turned OFF. Then wait for ve minutes or more.

3. Remove the front cover.

4. Remove three screws xing the rear cover of the control

box and slowly open the rear cover.

WHITE

BLACK

RED

GREEN/ YELLOW

WHITE

BLACK

RED

GREEN/ YELLOW

WHITE

BLACK

RED

GREEN/ YELLOW

WHITE BLACK RED

GREEN/

YELLOW

WHITE BLACK RED

GREEN/

YELLOW

WHITE BLACK RED

GREEN/

YELLOW

(Plug side)

A. In case of using with 3-phase 200V to 240V

• Changing the changeover connector

Connect to 200V the 100/200V changeover connector of

FLT p.c.b. 1.

• Connect the crimp style terminal of AC input cord to the

power plug as shown in the gure.

B. In case of using with single phase 100V to 120V

• Changing the changeover connector

Connect to 100V the 100/200V changeover connector of

FLT p.c.b. 1.

• Connect the crimp style terminal of AC input cord to the

power plug as shown in the gure.

(Caution) Securely perform the insulation treatment to the

red terminal which is not used with insulation tape or

thelike.(Whentheinsulationisinsufcient,thereisa

danger of electric shock or leakage current.)

C. In case of using with single phase 200V to 240V

• Changing the changeover connector

Connect to 200V the 100/200V changeover connector of

FLT p.c.b. 1.

• Connect the crimp style terminal of AC input cord to the

power plug as shown in the gure.

(Caution) Securely perform the insulation treatment to the

red terminal which is not used with insulation tape or

thelike.(Whentheinsulationisinsufcient,thereisa

danger of electric shock or leakage current.)

5. Check that the change has been performed without fail before closing the rear cover.

6. Be careful that the cord is not pinched between the rear cover and the control box main unit. Close the rear cover while pressing the lower side of rear cover, and tighten three screws.

[Point when inserting/drawing out the connector]

When it is difficult to remove the chang eover connector, insert a small-sized screwdriver and press in the direction of the arrow as shown

in the gure, and the connector can

be removed with ease

ENGLISH

– 9 –

[In case of using the power switch for LA]

It is necessary to separately purchase the parts below.

JUKI Part No. Description Q'ty Remarks

40012006 Set A for LA 1 For 3-phase 200 to 240V

40012007 Set B for LA 1 For single phase 100 to 120V

In addition, separately prepare the power switch for LA.

15) Remove three screws 1 located on the side of the control box.

16) Tighten cover installing ttings 2 to the control

box main unit with three screws 3 which have been removed in step 15).

17) Connect connector 4 coming from the power

source cord to lower connector 5 after checking

the direction.

(Caution) Adjust rubber bush 6 to the groove of

installing plate and insert it.

18) Pass nut 7 supplied with the power switch for

LA through the power cord and insert the cord

into the conduit (arrow mark).

Securely x it to the installing ttings with nut

7

from both sides.

19) Connect motor output cord 8 to connector 9 located on the side of the box. Fix power source cover !0 supplied with the unit using two screws !1 supplied with the unit.

(Caution) At this time, be careful so that the motor output cord is not caught by the power source

cover and so that the cord enters the recess of the power source cover.

– 10 –

JA 3ø 220V

JA 1ø 120V

Black

Red

White

Green / Yellow

(ground wire)

Black

White

Green / Yellow

(ground wire)

200V-240V

100V-120V

20) Installing power switch

Connect power supply cord to the power switch.

[JA specications]

3-phase 220 V : Power supply c o r d s : b l a c k ,

white, r e d a n d g r e e n / y e l l o w

(ground wire)

Single phase 120V : Power s u p p l y c o r d s : b l a c k ,

white, and green/yellow (ground

wire)

21) Make sure that the power switch is turned OFF

and insert power supply cord @1 coming from the

power switch into the power plug socket. (Illustra-

tion is for the japanese specication 100V type.)

(Caution) 1. Top end of power supply cord

varies in accordance with destina-

tion or supply voltage. Check again

the supply voltage and the voltage

designated on the control box when

installing the switch.

2. P rep a r e t h e p o wer sw i t ch con -

formed to the safety standard.

3. Be sure to connect the ground wire (

green / yellow).

6. 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 1 to installing hole B of ped-

al lever 2 with nut 3.

2) Installing connecting rod 1 to installing hole A

will lengthen the pedal depressing stroke, and

the pedal operation at a medium speed will be

easier.

– 11 –

7. Setting procedure of the machine head

WARNING :

When the machine head other than DDL-9000A is used, the work of items 7, 8 and 9 is not necessary. The machine head is automatically selected by inserting the machine head connector.

1) Refer to

910N" p.22

"#-4. Setting for functions of SC-

, and call the function setting No. 95.

2) The type of machine head can be selected by

pressing switch 3 ( switch 4).

3) After selecting the type of machine head, by

pressing switch 1 ( switch 2), the step

proceeds to 96 or 94, and the display automati-

cally changes to the contents of the setting cor-

responding with the type of machine head.

(Caution) W hen the t y p e of mach i n e head is

changed, the contents which have

been changed b e f o r e r e t u r n t o t h e

standard set values.

– 12 –

8. Machine head list

No. Machine head

Contents

of display

Number of revolutions at the time of delivery (rpm)

1 DLM-5400 4000 4500

2 DLN-5410 4000 5000

3 DLN-5410H 3500 4000

4 DMN-5420 4000 5000

5 DLD-5430 4000 4500

6 DLU-5490 4000 4500

7 DDL-5600B 3700 4000

8 DDL-5550, DDL-8700 4000 5000

9 DDL-5550H 3500 4000

10 DDL-5556 4000 4000

11 DLU-5494 3500 4000

12 DDL-5581 4000 5000

13 DDL-5571H 3500 4000

14 DDL-5600J 4000 4000

15 DDL-5600L, U, R 3000 3000

16 DDL-5581S 2000 3500

17 DDL-5581M 4000 4000

18 DDL-5550A 4000 4000

19 DDL-5581A, K 4000 4000

20 DDL-5571U 3500 3500

21 DDL-5700 4000 4000

22 DDL-9000S 4000 5000

23 DDL-9000D 4000 4000

24 DDL-9000H 4000 4500

25 DLN-9010S 4000 5000

26 DLN-9010H 3500 4000

27 DLN-9010J 3500 4000

DDL-9000A SS/MA/MS

4000 5000

29 DDL-9000A DS 4000 4000

30 DDL-9000A SH 4000 4500

31 LH-3168 3000 3000

32 LH-3178 3000 3000

33 LH-3188 3000 3000

34 LH-3128 3000 3000

35 LH-2178 4000 4000

36 LH-3162 3000 3000

37 LH-3182 3000 3000

38 LH-4128S 3600 4000

39 LH-4128D 3000 3000

40 LH-4168 3200 3200

41 LH-4168D 3000 3000

42 LH-4188 3200 3200

43 LZ-2280 4000 5000

44 LZ-2286 4000 5000

Max. number of

revolutions (rpm)

ENGLISH

Machine head set at the time of delivery

＊　

– 13 –

9. Adjusting the machine head (DDL-9000A only)

WARNING :

When the slip between the white marker dot on the handwheel and the concave of the cover is excessive after thread trimming, adjust the angle of the machine head by the operation below.

1) Simultaneously pressing switch 2 and

switch 3, turn ON the power switch.

2) is displayed (A) in the indicator and the

mode is changed over to the adjustment mode.

3) Turn the handwheel by hand and angle B is dis-

played in the indicator when the reference signal

has been detected.

(The value is the reference value.)

4) In this state, align the white dot 5of the hand-

wheel with the concave 6of the pulley cover as

shown in the gure.

5) Press switch 4 to finish the adjustment

work.

(The value is the reference value.)

– 14 –

. FOR THE OPERATOR

1. Operating procedure of SC-910N

Display of power ON

[When operation panel is not connected]

1) Press ON button 1 of the power switch to turn ON the power.

(Caution) In case the power indication LED does

not lights up even when turning ON the power switch,immediately turn OFF the power and check the 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.

(When overv o ltage is inp u tted, the

protecting circuit works and re-turning in the state that the power is not completely turned OFF is not received.)

ENGLISH

[When operation panel is connected]

When operation panel (CP-170, and IP-110) is not used

LED of the display of reverse stitching or overlapped stitching at

the front cover of control box lights up. (A)

* The power display LED that is built in the machine head

lights up according to the machine head.

When operation panel (CP-170, and IP-110) is used

Power lamp of CP-170 or IP-110 lights up.

Two dots B of the number indicating window at the front cover of

control box light up.

(Caution) When the buzzer continues sounding immedi-

ately after turning ON the power, the cord may

not be properly connected or power voltage may

be not proper. Press OFF button 2 of the power

switch to turn OFF the power.

2) When the needle bar is not in UP position, it automatically 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 initialization work. When turning ON the power, the needle bar moves. Do not put your hands or things under the needle.

3) When depressing front part 3 of the pedal, the

sewing machine rotates at the number of revolu-

tions in accordance with the depressing amount.

When the pedal is returned to the neutral posi-

tion, the sewing machine stops.

4) When lightly depressing back part 4 of the ped-

al, the presser goes up. (PFL type only)

5) When strongly depressing back part 5 of the

pedal, thread trimming is performed.

(Caution) For KFL a n d PFL types , thread

trimming entering point is different from each other.

– 15 –

6) When operation panel 6 is connected, various

sewing patterns such as reverse feed stitching

at sewing start, reverse feed stitching at sewing

end, etc. can be set.

Refer to the Instruction Manual for the operation

panel for the details.

7) When pressing touch-back switch 7, reverse

feed can be performed.

8) When sewing is completed, press OFF button

of the power switch to turn OFF the power switch

after confirming that the sewing machine has

stopped.

(Power indication LED 8 built in the machine

head goes out in case of some machine heads.)

– 16 –

2. Explanation of the operation panel

switch : Used for determining the contents of setting.

When this switch is pressed, ashing stops and the contents of

setting are determined.

2

switch : Used for changing the contents of setting.

When this switch is pressed, changeable positions ash on and off.

By pressing the switch, ashing position shifts in the right direction.

ENGLISH

3

switch : Used for changing the contents of the selected display (ashing

section).

When this switch is pressed, the contents of the display decrease.

switch : Used for changing the contents of the selected display (ashing

section). When this switch is pressed, the contents of the display increase.

PATTERN SELECTION display : The selected LED lamp lights up in case of A reverse stitching

LED and B overlapped stitching.

REVERSE STITCHING : Rendered effective when reverse stitching pattern is selected.

AT START display

REVERSE STITCHING : Rendered effective when reverse stitching pattern is selected.

AT END display

NUMBER OF STITCHES display : Number of stitches of reverse stitching or overlapped stitching is

8

“ ” Without reverse stitching display / “

“

” Double reverse stitching display

“ ” Without reverse stitching display / “

“

” Double reverse stitching display

” Reverse stitching display /

displayed.

AUTOMATIC : Lights up when the automatic thread trimming by depressing the

THREAD TRIMMING display front part of the pedal is selected.

(Lights up when the overlapped stitching is selected.)

THREAD TRIMMING : Lights up when the thread trimming prohibition is selected.

!0

PROHIBITION display Function setting No. 9

ONE-SHOT AUTOMATIC : Lights up when the one-shot automatic stitching is selected.

STITCHING display (Lights up when the overlapped stitching is selected.)(Lights up when the overlapped stitching is selected.)

MATERIAL END SENSOR : Lights up when the material end sensor setting is selected.

display Function setting No. 2

– 17 –

3. Operating procedure of the sewing pattern

(1) Reverse stitching pattern

Reverse stitching patterns below can be set by using the operation panel.

Reverse stitching patterns that can be set

Reverse stitching

at start display

Sewing pattern

Reverse stitching

at end display

Reverse stitching pattern

LED lights Up. LED lights Up.

Overlapped stitching pattern

⇔

1 2 1 2

B B

DCD

BAB

DCD

BAB

[ Setting procedure of the reverse stitching ]

1) Hold pressing / switch 2, and press

/ switch 1 to select the reverse stitch-

ing pattern.

(Every time / switch 1 is pressed, re-

verse stitching pattern/overlapped stitching pat-

tern change over alternately.)

6

Flash

7

Shift direction

Flash

Contents of reverse stitching selection

updating with switch

2) Press / switch 2 to make reverse stitch-

ing at start display 6 ash on and off.

Every time / switch 2 is pressed, the

ashing position shifts in the right direction.

(Caution) The sewing machine does not start in

theashingstate.

3) Press switch 4 or switch 3 and select

the reverse stitching pattern. Reverse stitching

patterns and displays are as follows.

: Reverse stitching

: Double reverse stitching

3

: Without reverse stitching

3 4

4) Press / switch 2 to make reverse stitch-

ing at end display 7 ash on and off, and set the

pattern in the same way as step 3).

– 18 –

Flash

5) Press / switch 2 to make number of

stitches display 8 ash on and off, and set the number of stitches for the respective processes of the stitching.

6) Press switch 4 or switch 3 to change

the number of stitches.

The number of stitches can be changed up to as

many as 15 stitches for the A, B, C, and D pro-

1 2 3 4

cesses respectively.

However, displays are as follows. 10 stitches = A, 11 stitches = b, 12 stitches = c, 13

stitches = d, 14 stitches = E and 15 stitches = F

7) When the setting of all items has been completed,

press / switch 1 to determine the con-

tents of the setting. (Flashing stops.)

(2) Overlapped stitching pattern

Overlapped stitching patterns below can be set by using the operation panel.

ENGLISH

Reverse stitching pattern

LED lights Up. LED lights Up.

Overlapped stitching pattern

⇔

A : Number of stitches of normal stitching setting

0 to 15 (F) stitches B : Number of stitches of reverse stitching setting 0 to 15 (F) stitches C : Number of stitches of normal stitching setting 0 to 15 (F) stitches D : Number of times of repetition

0 to 9 times

(Caution) When process D is set to 5 times, the sewing is re-

peated as A / B / C / B / C.

[Setting procedure of the overlapped stitching]

1) Hold pressing / switch 2, and press

/ switch 1 to select the overlapped stitching

pattern.

(Every time / switch 1 is pressed, re-

verse stitching pattern/overlapped stitching pattern change over alternately.)

2) The number of stitches for process A becomes in

ashing state.

3) Every time / switch 2 is pressed, the

Flash

2 3 4

ashing position shifts in the right direction and

the display of the process where setting can be

changed ashes on and off.

4) Press switch 4 or switch 3 to change

the number of stitches.

5) When the setting of all processes has been com-

pleted, press / switch 1 to determine

the contents of the setting. (Flashing stops.)

(Caution) When the overlapped stitching is se-

lected, the automatic operation display

ashesonandoff.Itisnotpossibleto

release the automatic operation.

– 19 –

(3) Special setting

It is possible to change the set value in the front panel by directly moving to the function setting mode while the power is turned ON in addition to the normal function setting procedure.

[ Moving procedure to the function setting mode ]

1) Hold pressing / switch 2, and press

switch 4 to move to the function setting

mode.

(Caution) Function setting No. 2 is displayed im-

mediately after the changeover.

2) When returning to the normal mode, press /

1 2 3 4

switch 1 and determine the contents of the

setting.

Material end sensor function setting (Function

setting No. 2)

It is rendered effective when connecting the op-

tional material end sensor.

It is possible to change the set value with

switch 3 or switch

0 : Material end sensor function is prohib-

ited.

1 : Material end sensor function is effective.

When "1" is selected, material

end s ensor disp l ay lights u p

when the mode has returned to

the normal one.

Thread trimming operation after material end

stop setting (Function setting No. 3)

1 2 3 4

Press / switch 2 to advance to the func-

tion setting No. 3.

It is possible to change the set value with

switch 3 or switch

0 : Material end stop

1 : Automatic thread trimming after detec-

tion of material end

When "1" is selected, the auto-

matic thread trimming display

lights up when the mode is re-

turned to the normal one.

– 20 –

Number of stitches to stop the sewing machine

after detection of material end setting (Function setting No. 4)

Press / switch 2 to advance to the func-

tion setting No. 4.

It is possible to change the set value with

1 2 3 4

switch 3 or switch 4.

Specied number of stitches : 0 to 19 stitches

(Caution)Whenthespeciednumberofstitches

is insufficient, there is a case where

the sewing machine cannot stop within

the specified number of stitches de-

pending on the speed of rotation of the

sewing machine.

One-shot automatic stitching setting function

(Function setting No. 119)

Press / switch 2 to advance to the func-

tion setting No. 119.

It is possible to change the set value with

switch 3 or switch 4.

0 : Pedal designated speed is prior. 1 : Automatic operation

(Caution) It is rendered effective when the mate-

rial end sensor function is set.

It is not possible to prohibit the one-

shot operation at the time of the overlapped stitching operation.

Speed of rotation is the speed set at

the function setting No. 38.

When "1" is selected, the oneshot automatic stitching display lights up when the mode is returned to the normal one.

ENGLISH

1 2 3 4

Thread trim ming p rohib ition f unction setting

(Function setting No. 9)

Thread trimming operation at normal stitching

and overlapped stitching can be prohibited by se-

lecting the thread trimming prohibition.

It is possible to change the set value with

switch 3 or switch 4.

0 : Thread trimming is effective.

1 : Thread trimming is prohibited.

Wh en " 1" i s se l e c t e d , t he

thread trimming prohibition dis-

play lights up when the mode

is returned to the normal one.

– 21 –

4. Setting for functions of SC-910N

Functions can be selected and specied by means of the four setting switches and light emitting diode lo-

cated inside the front cover of the SC-910N.

Speciedvalue

(Caution)

SpeciedNo.

1 3 42

Switch for entering specied value changed

1

and updating setting No. in DOWN direction

Switch for entering specied value changed

2

and updating setting No. in UP direction Down switch (DOWN)

3

Up switch (UP)

• Do not perform switch operations other than those described in the following explanations.

• Be sure to re-turn the power switch ON after one second or more has passed. If the power is turned ON immediately after turning it OFF, the sewing machine may not work normally. In this case, turn ON the power again.

WARNING :

To avoid possible personal injuries caused by movement other than that you desired, do not operate the switches in the procedure other than those required, as described below, to specify the functions.

How to change over to the function setting mode

1) Turn OFF the power to the unit.

2) Pressing switch 4, turn ON the power to the

unit.

3) Indication 5 and 6 will be shown on the screen

display.

(The indication item shows the item, the setting

of which was changed the last time.)

* If the indication fails to change, re-perform the

procedures 1) and 2).

– 22 –

SpeciedNo.

4) When you want to advance the setting No., press

/ switch 2 to advance the setting No.

When you want to return the setting No., press

/ switch 1 to return the setting No.

1 2

(Caution) Wh e n

sw i t c h 1 (

switch 2) is held pressing, the setting

No. will return (will advance) continuously.

When the setting No. is advanced (re-

turned), the contents which are before

by o ne (after b y one) will b e deter-

mined. So, be careful when changing

the contents ( up/down switch is touched).

EXAMPLE) CHANGING THE FLICKER REDUCING

FUNCTION (SETTING No. 5)

Press / switch 2 several times to adjust set

No. to “5”. Press switch 4 three times to change the set No. to “3” since the current set value is displayed

on LED 5. (Standard : “0”)

(Caution) Keep pressing switch 4 or

switch 3, and the setting value can be

changed continuously.

ENGLISH

1 2 3 4

5) When the change has been completed, press

/ switch 1 or / switch 2 to

specify the changed value.

(Caution) 1. When turning OFF the power before

performing this work, the contents

which have been changed are not

updated.

2. P r e s s

sw i t c h 1, an d

screen display will change to the

contents of the setting No. which is

1 2 3 4

3. Press

before by one.

switch 2, and screen

display will change to the contents

of next setting No. After completing

the operation, turn OFF the power

and turn ON the power again to re-

turn to the normal operation.

After completing the operation, turn OFF the power and turn ON the power again to return to the normal

operation.

* Simultaneously press switch 3 and switch 4, and the setting contents of set No. will return to

the initial value.

– 23 –

5. Function setting list

1 Soft start

2 Material end

4 Number of

5 Flicker reducing

6 Bobbin thread

7 Unit of bobbin

8 Number of

9 Thread

10 Setting of

11 Click sound

12 Optinal switch

13 Function of

14 Sewing counter Counting function of sewing (number of completion of process)

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. (Descriptions of setting in this list are the standard values at the time of delivery of DDL-9000A.) However, contents of function setting are subject to change for improvement of function and performance without notice.

Item Description

function

sensor function

Thread trimming function by material end sensor

stitches for material end sensor

function

counting function

thread counting down

rotation of reverse feed stitching

trimming prohibiting function

needle bar stop position when the sewing machine stops.

of key switch

mounted on PSC

function selection

prohibiting start of the sewing machine by bobbin thread counter

Number of times of detection of run-out of bobbin thread remaining amount

The number of stitches to be sewn at a low speed when the softstart function is used at the start of sewing.

0 : Soft-start function is not operative.

Material end sensor function (used in case of without panel).

0 : Material end detection function is not operative. 1 : After de tecting material end, the speci fied number o f

stitches (No. 4) will be sewn, and the sewing machine will stop.

Thread trimming function by material end sensor (used in case of without panel).

0 : Automatic thread trimming function after detection of ma-

terial end is not operative.

1 : After de tecting material end, the speci fied number o f

stitches (No. 4) will be sewn, and the sewing machine will stop and perform automatic thread trimming.

Number of stitches for material end sensor (used in case of without panel). Number of stitches from detection of material end to stop of the

sewing machine.

Flicker reducing function (If the hand lamp ickers).

0 : Flicker reducing function is not operative.

1 : Less effective / 8 : Highly effective

Bobbin thread counting function

0 : Bobbin thread counting function is not operative. 1 : Bobbin thread counting function is operative.

Unit of bobbin thread counting down

0 : Count/10 stitches 1 : Count/15 stitches 2 : Count/20 stitches

Sewing speed of reverse feed stitching

Thread trimming prohibiting function (used in case of without panel).

0 : Thread trimming prohibiting function is not operative. 1 : Thread trimming is prohibited.

(Output of solenoid is prohibited. : Thread trimmer and wiper)

Position of needle bar is specified when the sewing machine stops.

0 : Predetermined lowest position 1 : Predetermined highest position

Click sound of key switch mounted on PSC is specied.

0 : Click is not operative. 1 : Click is operative.

Switching of function of optional switch.

0 : No function 1 : Needle up/down compensating stitching

2 : Back compensating stitching

3 : Function of canceling once reverse feed stitching at the

end of sewing 4 : Thread trimming function 5 : Presser foot lifting function 6 : One stitch compensating stitching 7 : Function of simultaneously canceling reverse feed stitch-

ing at the start and end of sewing 8 : Function of neutral presser foot lifting changeover

Function of prohibiting start of the sewing machine by bobbin thread counting

0 : When counting is out (-1 or less) Function of prohibiting

start of the sewing machine is not operative. 1 : When counting is out (-1 or less) Function of prohibiting

start of the sewing machine after thread trimming is op-

erative. 2 : When counting is out (-1 or less), the sewing machine

stops once. Function of prohibiting start of the sewing

machine after thread trimming is operative.

0 : Sewing counter function is not operative. 1 : Sewing counter function is operative.

Number of times of detection of run-out of bobbin thread remaining amount 0 : Function of bobbin thread remaining amount is not

1 to 19 : Number of times during which the signal is not made

operative.

even if run-out of bobbin thread remaining amount is detected.

Setting range

0 to 9

(Stitches)

0/1

0 to 19

(Stitches)

0 to 8

0/1

0 to 2

150 to 3,000

(r.p.m.)

0/1

0 to 8

0 to 2

0/1

0 to 19

Indication of function setting

1 0

2 0

3 0

4 5

5 0

6 1

7 0

8 1 9 0 0

9 0

1 0 0

1 1 1

1 2 0

1 3 0

1 4 1

1 5 1

Ref. page

– 24 –

18 Bird’s nest pre-

vention function

19 Needle thread

release function at the sewing start

20 Number of

condensation stitches

21 Function of

neutral presser lifting

22 Function of

changeover of compensating switch on the operation panel function

24 Function of

ne adjustment

of number of rotation

25 Thread trimming

motion condition

26 Function of

setting the holding force after stop

27 Function of

setting the reaction force at the time of retry

28 Number of

stitches of needle thread release

29 Initial motion

time of backtack

30 Function of

reverse feed stitching on the way

Number of stitches of reverse feed stitching on the way

32 Effective

condition of reverse feed stitching on the way when the sewing machine is stopping.

33 Thread trimming

function by reverse feed stitching on the way

35 Number of

rotation at a low speed

36 Number of

rotation of thread trimming

37 Number of

rotation of softstart

Item Description

This function is effective in combination with the machine head with bird's nest prevention function (optional unit A is necessary).

0 : Bird's nest prevention function is not operative. 1 : Bird's nest prevention function is operative. 2 : Bird's nest prevention function is operative (with thread

release).

This function is effective in combination with the machine head with bird's nest prevention function (optional unit A is necessary).

0 : Needle thread release function is not operative. 1 : Needle thread release function is operative.

This function is effective in combination with the machine head with bird's nest prevention function (optional unit A is necessary).

0 : Condensation function is not operative. 1 to 9 : Number of condensation stitches

Function of lifting presser foot when the pedal is in neutral position.

0 : Function of neutral automatic presser lifting is not opera-

tive. 1 : Selection of function of neutral presser lifting.

Function of needle up/down compensating switch on the operation panel can be changed.

0 : Needle up/down compensation 1 : One stitch compensation

Number of rotation can be compensated. Be sure to normally use this function with "0".

This function sets the thread trimming motion after DOWN position has been off by turning handwheel by hand.

0 : Thread trimming after turning handwheel by hand is permitted. 1 : Thread trimming after turning handwheel by hand is prohib

This function prevents the sewing machine from the reverse rotation after it has stopped.

0 : Initial value 1 : Less effective / 9 : Highly effective

This function sets the magnitude of return force of the needle bar before the retry motion.

1 : Less return force / 100 : High return force

This function is effective in combination with the machine head with bird's nest prevention function (optional unit A is necessary). This function sets the number of stitches grasping thread at the sewing start.

0 to 30 stitches

This function sets the suction time of initial motion of back-tack solenoid.

50 ms to 300 ms

Function of reverse feed stitching on the way

0 : Function of reverse stitching on the way is not operative. 1 : Function of reverse feed stitching on the way is operative.

Number of stitches of reverse feed stitching on the way.

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.

Thread trimming function by reverse feed stitching on the way

0 : Automatic thread trimming function after completion of

reverse feed stitching on the way is not operative. 1 : Automatic thread trimming after completion of reverse

feed stitching on the way is performed.

Lowest speed by pedal

Thread trimming speed

Sewing speed at the start of sewing (soft-start)

ited.

Setting range

0 to 2

0/1

0 : Function

OFF

1 to 9

stitches

0/1

– 1.5% to

1.5%

(0.1 %)

0/1

0 to 9

1 to 100

0 to 30

(Stitches)

50 to 300

(ms)

0/1

0 to 19

(Stitches)

0/1

20 to 400

(r.p.m.)

20 to 250

(r.p.m.)

150 to 5500

(r.p.m.)

Indication of function setting

1 8 0

1 9 0

2 0 0

2 1 0

2 2 0

2 4 0

2 5 1

2 6 0

2 7 5 0

2 8 1

2 9 2 5 0

3 0 0

3 1 4

3 2 0

3 3 0

3 5 2 0 0

3 6 2 1 0

3 7 8 0 0

Ref. page

Do not change the set values with asterisk (*) mark as they are functions for maintenance. If the standard set value set at the

– 25 –

38 One-shot speed One-shot speed (The max. value depends on the number of ro-

39 Pedal stroke

40 Low speed

41 Starting position

42 Starting position

51 Compensation of

52 Compensation of

53 Compensation of

Item Description

tation of the sewing machine head.)

at the start of rotation

section of pedal

of lifting presser foot by pedal

of lowering presser foot

Pedal stroke 2 for

starting thread trimming

Pedal stroke

for reaching the maximum number of rotation

Compensation of neutral point of the pedal

Auto-lifter selecting function

Pedal stroke 1 for

starting thread trimming

Lowering time of presser foot

solenoid-on timing of reverse feed stitching at the start of sewing

solenoid-off timing of reverse feed stitching at the start of sewing

solenoid-off timing of reverse feed stitching at the end of sewing

Foot lift after thread trimming

Reverse revolution to lift the needle after thread trimming

Bobbin thread remaining amount detection function

Function of holding predetermined upper/lower position of the needle bar

Function of Auto/ Manual changeover of reverse feed stitching at the start of sewing

Position where the sewing machine starts rotating from pedal

neutral position (Pedal stroke)

Position where the sewing machine starts accelerating from

pedal neutral position (Pedal stroke)

Position where the cloth presser starts lifting from pedal neutral

position (Pedal stroke)

Starting position of lowering presser foot

Stroke from the neutral position

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)

Position where the sewing machine reaches its highest sewing

speed from pedal neutral position (Pedal stroke)

Compensation value of the pedal sensor

Auto-lifter selection

0 : Solenoid drive system 1 : Pneumatic drive system

Limitation time of waiting for lifting solenoid type auto-lifter device

Position where thread trimming starts from pedal neutral position

(Standard pedal) (Pedal stroke)

Lowering time of presse r foot after the pedal has been depressed. (Start of rotation of the sewing machine is delayed during this time.)

Compensation of starting the solenoid for reverse feed stitching when reverse feed stitching at the start of sewing is performed.

Compensation of releasing the solenoid for reverse feed stitching when reverse feed stitching at the start of sewing is performed.

Compensation of releasing the solenoid for reverse feed stitching when reverse feed stitching at the end of sewing is performed.

Function of lifting presser foot at the time of (after) thread trimming

0 : Not provided with the function of lifting presser foot after

thread trimming

1 : Provided with the function of lifting presser foot

after thread trimming

Function of reverse revolution to lift the needle at the time of (after) thread trimming

0 : Not provided with the function of reverse revolution to lift

the needle after thread trimming

1 : Provided with the function of reverse revolution to lift the

needle after thread trimming

Function of detecting bobbin thread remaining amount at the time of (after thread trimming

0 : Not provided with the function of detecting bobbin thread

remaining amount

1 : Provided with the function of detecting bobbin thread re-

maining amount

Function of holding predetermined upper/lower position of the needle bar

0 : Not provided with the function of holding predetermined up-

per/lower position of the needle bar

1 : Provided with the function of holding predetermined upper/

lower position of the needle bar

This function can specify the sewing speed of reverse feed stitching at the start of sewing.

0 : The speed will depend on the manual operation by pedal, etc. 1 :

The speed will depend on the specied reverse feed stitching speed (No. 8).

automatically

Setting range

200 to MAX

(r.p.m.)

10 to 50

(0.1 mm)

10 to 100

(0.1 mm)

– 60 to –10

(0.1mm)

8 to 50

(0.1 mm)

– 60 to –10

(0.1 mm)

10 to 150

(0.1 mm)

–15 to 15

0/1

10 to 600

(second)

– 60

to – 10

(0.1 mm)

to 250

(10 ms)

– 36 to 36

(10°)

– 36 to 36

(10°)

– 36 to 36

(10°)

0/1

Indication of function setting

3 8 2 5 0 0

3 9 3 0

4 0 6 0

4 1 – 2 1

4 2 1 0

4 3 – 5 1

4 4 1 5 0

4 5 0

4 6 0

4 7 6 0

4 8 – 3 5

4 9 1 4 0

5 1 – 1 8

5 2 – 5

5 3 – 5

5 5 1

5 6 0

5 7 0

5 8 0

5 9 1

Ref. page

Do not change the set values with asterisk (*) mark as they are functions for maintenance. If the standard set value set at the

– 26 –

Item Description

Function of stop immediately after reverse feed stitching at the start of sewing

Function of starting prohibition of the sewing machine by detection of bobbin thread remaining amount

Changeover speed of condensation stitch or EBT (end

back tack)

On-timing of solenoid for condensation stitch (when condensation stitch is performed by 1 stitch.)

On-timing of solenoid for condensation stitch (when condensation stitch is performed by 2 stitches.)

Presser foot lifting solenoid output duty setting

Separately driven needle changeover speed-up function

Function of softdown of presser foot

Function of limitation of reacceleration from reduction of speed

Function of limitation of acceleration at the start of rotation

Retry function

Rotating direction of motor

Function to select the start-up speed of the sewing machine

Initial motion suction time of presser foot lifting solenoid

Function of pedal curve selection

Function at the time of completion of reverse feed stitching at the start of sewing

0 : Not provided with the function of temporary stop of the

sewing machine at the time of completion of reverse feed stitching at the start of sewing

1 : Provided with the function of temporary stop of the sew-

ing machine at the time of completion of reverse feed stitching at the start of sewing.

Function of starting prohibition of the sewing machine by detection of bobbin thread remaining amount

0 : This function does not stop the sewing machine when

counting is out (-1 or less).

1 : This function stops the sewing machine when counting is

out (-1 or less).

Initial speed when starting condensation stitch or EBT

Starting (compensation) timing of solenoid for compensation stitch : -1 Compensation value of starting the solenoid when condensation stitch is performed by 1 stitch.

Starting (compensation) timing of solenoid for condensation stitch : -2 Compensation value of starting the solenoid when condensation stitch is performed by 2 stitches.

Duty of presser foot lifting solenoid output

Speed of separately driven needle changeover is set to highspeed.

0 : Standard 1 : High-speed

Presser foot is slowly lowered.

0 : Presser foot is rapidly lowered. 1 : Presser foot is slowly lowered.

Speed limitation is performed at the time of re-acceleration on the way of reducing speed of the sewing machine. It is effective when operating inching sewing.

Speed limitation is performed at the time of start-up of the sewing machine (excluding the start of sewing). It is effective when operating inching sewing.

This function is used when needle cannot pierce materials .

0 : Normal 1 : Retry function is provided.

Normal rotating direction of motor

0 : Clockwise 1 : Counterclockwise

Starting curve of the sewing machine is selected.

0 : Normal curve 1 : More sharp curve

Suction motion time of presser foot lifting solenoid

Pedal curve is selected. (Improving pedal inching operation)

Number of rotations

Setting range

0/1

0 to 250

(r.p.m.)

Indication of function setting

6 0 0

6 1 1

6 4 1 8 0

Ref. page

ENGLISH

– 36 to 0

(10°)

– 36 to 0

(10°)

5 to 40

0/1

0 to 5

0/1

40 to 300

(ms)

0/1/2

6 5 – 1 5

6 6 – 1 5

6 7 2 0

6 8 0

7 0 0

7 1 0

7 2 0

7 3 1

7 5 0

7 6 0

8 4 1 0 0

8 7 0

Pedal stroke

Do not change the set values with asterisk (*) mark as they are functions for maintenance. If the standard set value set at the

Items with mark are displayed when the machine heads of LH-4168, LH-4168D and LH-4188 are selected.

– 27 –

95 Head selection

100 Number of

101 Sewing counter

105 Touch back

106 Presser lifting

107 In-corner

108

109

Item Description

Tension release function

Initial motion up stop function

Function of prohibiting compensation operation after turning handwheel by hand

Function of reducing speed of reverse feed stitching at the start of sewing

Function added to needle up/down compensating switch

Continuous stitching + oneshot stitching nonstop function

function

Max. number of rotation setting

stitches of tension release motion at the sewing start

input function

switch needle up/down compensating stitching function

switch one stitch compensating function

sewing one-shot function

In-corner presser lifting function

Resewing function

Setting range

This function is effective in combination with the machine head with bird's nest prevention function (Optional unit A is necessary).

0 : Motion is prohibited. 1 : Motion of thread draw-out/return solenoid is prohibited.

Automatic UP stop function is set immediately after turning ON the power.

0 : off 1 : on

It is effective in combination with the machine head provided with tension release function.

0 : Tension release function is ineffective. 1 : Tension release function is effective.

Function to reduce speed at the time of completion of reverse feed stitching at the start of sewing.

0 : Speed is not reduced. 1 : Speed is reduced.

Operation of needle up/down compensating switch is changed after turning ON the power or thread trimming.

0 : Normal (needle up/down compensating stitching only) 1 : One stitch compensating stitching is performed only when aforemen-

tioned changeover is made. (Upper stop / upper stop)

In IP-110 program functions, a function that does not stop the sewing machine by combining continuous stitching with one-shot stitching when the step is changed.

0 : Normal (The sewing machine stops when a step is completed.) 1 : The sewing machine does not stop when a step is completed

and proceeds to next step.

Machine head to be used is selected. * Whe n t he mac hine h ea d i s chang ed, each set tin g i tem is

changed to the initial value of the machine head.

Max. number of rotation of the sewing machine head can be set.

This function is effective in combination with the machine head with bird's nest prevention function. (Optional unit A is necessary).

This function sets the number of stitches to make the tension release

solenoid actuate at the sewing start.

0 : Tension release motion is prohibited. 1 to 2 stitches : Number of stitches of tension release motion

This function selects the input destination of the sewing counter.

0 : Every time thread trimming is performed, the counter automati-

cally counts up.

1 :

The counter counts up by inputting of the external sewing counter SW

When connecting IP-110 and selecting the corner pattern, this function performs

compensating stitching during sewing in-corner with the touch back switch.

0 : Touch back switch compensating stitching is invalid. 1 : Touch back switch compensating stitching is valid.

* It is possible to set only when LH-4168 or LH-4188 is selected for

the machine head.

When connecting IP-110 and selecting the corner pattern, this function performs compensating stitching during sewing in-corner with the presser lifting switch.

0 : Presser lifting switch compensating stitching is invalid. 1 : Presser lifting switch compensating stitching is valid. * It is possible to set only when LH-4168 or LH-4188 is selected for

the machine head.

* When using this function, set the presser lifting switch function

selection (No. 117) to “0” (function invalid).

When connecting IP-110 and selecting the corner pattern, this function performs one-shot automatic sewing of in-corner sewing.

0 : One-shot automatic sewing of in-corner sewing is invalid. 1 : One-shot automatic sewing of in-corner sewing is valid. * It is possible to set only when LH-4168 or LH-4188 is se-

lected for the machine head.

When connecting IP-110 and selecting the corner pattern, this function performs automatic presser lifting after completion of the in-corner sewing.

0 : Automatic presser lifting after in-corner sewing is invalid. 1 : Automatic presser lifting after in-corner sewing is valid. * It is possible to set only when LH-4168 or LH-4188 is se-

lected for the machine head.

* This function is valid only when the automatic presser lifting

device (AK) is connected.

When connecting IP-110, this function stops/uses resewing

(resewing from a point on the way). 0 : Resewing function is invalid. 1 : Resewing function is valid. * It is possible to set only when LH-4168 or LH-4188 is se-

lected for the machine head.

0/1

50 to MAX

(rpm)

0 to 9

0/1

Indication of function setting

8 9 0

9 0 1

9 1 1

9 2 0

9 3 0

9 4 0

9 5 d L A

9 6 4 0 0 0

1 0 0 0

1 0 1 0

1 0 5 0

1 0 6 1

1 0 7 0

1 0 8 1

1 0 9 1

Ref. page

Do not change the set values with asterisk (*) mark as they are functions for maintenance. If the standard set value set at the

Items with mark are displayed when the machine heads of LH-4168, LH-4168D and LH-4188 are selected.

– 28 –

110

Separately driven needle changeover function (free stitching/ overlapped stitching)

111

Separately driven needle changeover function (corner pattern)

112

Teaching motion selection

113

Number of stitches of teaching replay

114

Left bobbin thread counter function

115

Right bobbin thread counter function

116

Corner teaching start switch selection

Item Description

When selecting reverse stitching pattern/overlapped stitching pattern, this function stops/uses the separately driven needle changeover function.

When “0” (invalid) is selected, the separately driven needle

changeover is not possible with reverse stitching pattern/overlapped stitching pattern.

0 : Separately driven needle changeover function (during free

stitching) is invalid.

1 : Separately driven needle changeover function (during free

stitching) is valid.

* It is possible to set only when LH-4168 or LH-4188 is se-

lected for the machine head.

When connecting IP-110 and selecting the corner pattern, this function stops/uses the separately driven needle changeover function.

When “0” is selected, it is not possible to optionally perform the

separately driven needle changeover with the corner pattern.

0 : Separately driven needle changeover (during corner pat-

tern) is invalid.

1 : Separately driven needle changeover (during corner pat-

tern) is valid.

* It is possible to set only when LH-4168 or LH-4188 is se-

lected for the machine head.

Selection of the motion when pressing the teaching switch

0 : Normal : teaching motion with teaching + separately driv-

en needle changeover)

1 : Teaching motion with separately driven needle change-

over only (when starting teaching motion, it is not necessary to press the teaching switch.)

2 : Teaching motion in the state of separately driven needle

is prohibited. (Set the state to two-needle state and press the teaching switch.)

* It is possible to set only when LH-4168 or LH-4188 is se-

lected for the machine head.

This function selects the number of stitches of replay when performing corner teaching (measurement of number of stitches of separately driven needle sewing).

0 : Number of stitches of replay corresponds to that of mea-

surement.

1 : Number of stitches of replay is that which is subtracted

one stitch from number of stitches of measurement.

* It is possible to set only when LH-4168 or LH-4188 is se-

lected for the machine head.

When connecting IP-110, this function stops/uses left bobbin thread counter function.

0 : Left bobbin thread counter is stopped. 1 : Left bobbin thread counter is used. * It is possible to set only when LH-4168 or LH-4188 is se-

lected for the machine head.

When connecting IP-110, this function stops/uses right bobbin thread counter function.

0 : Right bobbin thread counter is stopped. 1 : Right bobbin thread counter is used. * It is possible to set only when LH-4168 or LH-4188 is se-

lected for the machine head.

When connecting IP-110, this function selects the switch to start in-corner sewing in the corner pattern sewing.

0 : No function 1 : Left needle changeover switch 2 : Right needle changeover switch 3 : Teaching switch 4 : Optional switch 5 : Knee switch and presser lifting switch 6 : No function (Do not set.) * When selecting 1 : Left needle changeover switch, 2 : Right

needle changeover switch or 3 : Teaching switch for in-corner changeover switch, be sure to set No. 111 Separately

driven needle changeover function (corner pattern) to “0”

(function invalid).

* It is possible to set only when LH-4168 or LH-4188 is se-

lected for the machine head.

Setting range

0/1

0 to 2

0/1

0 to 6

Indication of function setting

1 1 0 1

1 1 1 1

1 1 2 0

1 1 3 0

1 1 4 1

1 1 5 1

1 1 6 5

Ref. page

ENGLISH

Do not change the set values with asterisk (*) mark as they are functions for maintenance. If the standard set value set at the

Items with mark are displayed when the machine heads of LH-4168, LH-4168D and LH-4188 are selected.

– 29 –

117

118

120 Main shaft

121 Up position

122 DOWN position

Item Description

Presser lifting switch function selection

Grease-up error release

reference angle compensation

starting angle compensation

When connecting knee switch, this function selects stop/use of automatic presser lifting function by knee switch.

0 : Automatic presser lifting by knee switch is stopped 1 : Automatic presser lifting by knee switch is used.

* It is possible to set only when LH-4168 or LH-4188 is se-

lected for the machine head.

* When using this function, set the presser lifting switch one

stitch compensating function (No. 106) to “0” (function invalid).

When grease-up error (E220 or E221) has occurred, the error is released by setting the value to 1.

0 : Normal state 1 : Grease-up error is released when turning ON the power

next time. (This function is also released after releasing grease-up error.)

* When releasing grease-up error, be sure to execute grease-

up.

* It is possible to set only to the machine heads that require

grease-up (LH-4100 and some of LH-3500 series).

Main shaft reference angle is compensated.

Angle to detect UP position starting is compensated.

Angle to detect DOWN position starting is compensated.

Setting range

0/1

–35 to 35

–15 to 15

Indication of function setting

1 1 7 0

1 1 8 0

1 2 0 – 2 1

1 2 1 2

1 2 2 0

Ref. page

Do not change the set values with asterisk (*) mark as they are functions for maintenance. If the standard set value set at the

Items with mark are displayed when the machine heads of LH-4168, LH-4168D and LH-4188 are selected.

– 30 –

6. Detailed explanation of selection of functions

Selection of the soft-start function (Function setting No. 1)

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 : The function is not selected.

1 to 9 : The number of stitches to be sewn under the soft-start mode.

The sewing speed limited by the soft-start function can be changed. (Function setting No. 37)

Data setting range

3 7

150 to 5,500 rpm <50 rpm>

Material end sensor (ED : optional) function (Function setting No. 2 to 4)

This function is possible when the material end sensor (ED) is attached.

As for the details, refer to the instruction manual for the material end sensor.

(Caution) Setting will be invalid when the material end sensor is not attached, or control panel is

Flicker reducing function (Function setting No. 5)

The function reduces ickering of the hand lamp at the start of sewing. The higher the set value increases,

the more effective the function will work.

Setting range

0 to 8

0 : Flicker reducing function does not work.

8 : Flickering is effectively reduced.

(Caution) Themoreeffectivetheickerreducingfunctionworks(themorethesetvalueismade),

8 0 0

connected.

the lower the start-up speed of the sewing machine will become.

ENGLISH

Bobbin thread counting function (Function setting No. 6)

潺

When the control panel is used, the function subtracts from the predetermined value and indicates the used

amount of bobbin thread.

For the details, refer to the instruction manual for the control panel.

(Caution) If “0” is set, the LCD indication on the control panel will go out and the bobbin thread

counting function will be invalid.

Thread trimming prohibiting function (Function setting No. 9)

This function turns OFF thread trimming solenoid output and wiper solenoid output when thread trimming

is actuated. [If the control panel is used with the sewing machine, this function will work in accordance with

the function setting on the control panel.]

By this function, separate sewing material can be spliced and sewn without trimming thread.

0 : off Thread trimming is operative. (thread can be trimmed).

1 : on Thread trimming is inoperative. (thread can not be trimmed).

Setting of the needle bar stop position when the sewing machine stops (Function setting No. 10)

The position of the needle bar when the pedal is in its neutral position is specied.

0 : Down The needle bar stops in the lowest position of its stroke.

1 0

1 : Up The needle bar stops in the highest position of its stroke.

(Caution) If the stop position of the needle bar is set to the highest position, the thread trimming

Sound of click of the key switch mounted on the PSC box (Function setting No. 11)

This function selects whether the sound is effective or ineffective when operating the four key switches

mounted on the PSC box.

0 : off The sound of click is ineffective.

1 1

1 : on The sound of click is effective.

action will be taken after the needle bar comes down once to the lowest position.

– 31 –

Optional switch function selection (Function setting No. 12) : It is used only when it is combined

with the machine head provided with the optional switch.

Functions to be assigned to the optional switch can be selected from the following functions.

0 : No function (Standard setting)

1 2

1 : Needle up / down compensating stitching : Every time the switch is

pressed, normal feed stitching by half stitch is performed. (Same operation as that of up / down compensating stitching switch on the panel.)

2 : Back compensating stitching : Reverse feed stitching is performed at low

speed while the switch is held pressing. (It is effective only when constant dimension sewing pattern is selected.)

3 : Function of canceling once reverse feed stitching at the end of sewing :

By depressing the back part of the pedal after pressing the switch, operation of reverse feed stitching is canceled once.

4 : Thread trimming function : This function is actuated as the thread trim-

ming switch. 5 : Presser foot lifting function : This function is actuated as the foot lifter switch. 6 : One stitch compensating stitching : Every time the switch is pressed,

one stitch stitching operation is executed. 7 : Function of simultaneously canceling reverse feed stitching at the start

and end of sewing : By operating the optional switch, ineffective/effec-

tive can be alternately changed over. 8 : Function of neutral presser foot lifting changeover : ON/OFF can be

changed over alternately by operating the optional switch.

(Note) Indication 1 of reverse feed stitching at the

start and end of sewing on the operation panel is the same even when the function is canceled. So, be careful.

Sewing counting function (Function setting No. 14)

The function counts up every time thread trimming is completed and counts the number of completion of the sewing process. This can be realized together with the IP-110 control panel. Refer to the explanation of the control panel.

1 : on Sewing counting function is operative.

1 4

0 : off Sewing counting function is inoperative. (Indication on the IP-110 control panel will go out as well.)

Bird’s nest prevention function (Function setting No. 18 to 20, 28, 65, 66, 89, 100)

This function prevents the thread from being entangled at the sewing start. This function is used only when

it is combined with the sewing machine head with bird’s nest prevention specications.

(When using this function, the optional unit A is necessary.)

Bird’s nest prevention function (Function setting No. 18)

1 8

1 : Bird’s nest prevention function is effective. 0 : Bird’s nest prevention function is ineffective. 2 : Bird's nest prevention function is effective.

(Thread release is effective.)

Setting of function setting Nos. 19 to 20, 28, 65, 66, 89 and 100 becomes ineffective.

Needle thread release function at the sewing start (Function setting No. 19)

1 9

0 : Not provided with needle thread release function at the sewing

start (Normal)

1 : Provided with needle thread release function at the sewing start

Number of condensation stitches at the sewing start (Function setting No. 20)

Number of condensation stitches at the sewing end can be set.

2 0

Setting range 1 to 9 stitches 0 : Condensation function is ineffective.

– 32 –

On-timing of solenoid for condensation stitch (when condensation stitch is performed by 1 stitch.)

(Function setting No. 65)

Starting timing of solenoid for condensation of 1 stitch can be corrected by angle at the unit of 10˚.

Adjusting range

– 36 to 0 <1 / 10˚>

On-timing of solenoid for condensation stitch (when condensation stitches are performed by 2 stitches

or more.) (Function setting No. 66)

Starting time of solenoid for condensation of 2 stitches or more can be corrected by angle at the unit of 10˚.

Adjusting range

– 36 to 0 <1 / 10˚>

Needle thread release function (Function setting No. 28)

This function sets the number of stitches until the clamped needle thread is held after the start of sewing

Setting range : 0 to 30 stitches

Thread draw-out/return solenoid (Function setting No. 89)

This function sets whether the motion of draw-out/return solenoid (LZ) is performed or prohibited.

0 : Motion is ineffective.

1 : Function is effective.

Number of stitches of tension release motion at the sewing start (Function setting No. 100)

This function sets the number of stitches to make the tension release solenoid actuate at the sewing start.

Setting range : 0 to 9 stitches

6 5

6 6

2 8

8 9

1 0 0

– 1 5

ENGLISH

Neutral automatic presser lifting function (with AK device only) (Functionsetting No. 21)

This function can automatically lift the presser foot when the pedal is in the neutral position. Automatic lifting time of the pedal depends on the automatic lifting time after thread trimming and when the presser foot is automatically lowered, it is automatically lifted at the second neutral position after it has come off the neutral position once.

0 : off Function of neutral automatic presser lifting is not operative.

2 1

1 : on Selection of function of neutral automatic presser lifting

Function of changeover of compensating switch on the operation panel function (Function setting No. 22)

Function of compensation switch on the operation panel of CP-170 or IP-110 can be changed over to needle up / down compensating stitching or one stitch compensating stitching.

0 : Needle up / down compensating stitching

2 2

1 : One stitch compensating stitching

Thread trimming motion condition (Function setting No. 25)

This function makes the thread trimming motion ineffective when depressing the back part of the pedal after DOWN detection position has been off by turning handwheel by hand or the like.

0 : Thread trimming motion is effective.

2 5

1 : Thread trimming motion is prohibited.

Function of setting the holding force after stop (Function setting No. 26)

Function to prevent the increased amount of reverse rotation after stop when the machine has been used for a long time and the machine head torque has become light. When the set value is increased, the prevention effect becomes large. However, when the set value is excessively increased, on the contrary, there is a dan-

ger that the machine normally rotates. Adjust the function while checking the motion of the needle bar.

Setting range : 0 to 9

2 6

Function of setting the reaction force at the time of retry (Function setting No. 27)

This function changes the magnitude of the reversing force before moving to the retry motion.

Setting range : 1 to 100

2 7

1 : Less reversing force to 100 : More reversing force

5 0

– 33 –

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 300 ms <10 / ms>

2 9

Function of reverse feed stitching on the way (Function setting Nos. 30 to 33)

2 5 0

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 Function of reverse feed stitching on the way is selected.

0 : off Normal back-tack function

3 0

1 : on Function of reverse feed stitching on the way

Function setting No. 31 Number of stitches performing reverse feed stitching is set.

Setting range

3 1

0 to 19 stitches

Function setting No. 32 Effective condition of reverse feed stitching on the way

3 2

0 : off Inoperative when the sewing machine stops. (Reverse feed stitch-

ing on the way functions only when the sewing machine is running.) 1 : on Operative when the sewing machine stops. (Reverse feed stitching on the way functions both when the sew-

ing machine is running and stops.)

(Caution) Either condition is operative when the sewing machine is running.

Function setting No. 33

0 : off Without thread trimming

3 3

Thread trimming is performed when reverse feed stitching on the way is completed.

1 : on Thread trimming is executed.

Actions under each setting state

Application

Used as the normal reverse feed stitching touch-back switch.

Used for reinforcing seam (press sewing) of the pleats. (It works only when the sewing machine is running.)

Used for reinforcing seam (press sewing) of the pleats.

(It works either when the sewing machine stops or when the sewing machine is running.)

Used as starting switch for reverse feed stitching at the sewing end.

(Used as the substitute for thread trimming by depressing back part of the pedal. It works only when the sewing

machine is running. It is especially effective when the sewing machine is used as the standing-work machine.)

Used as starting switch for reverse feed stitching at the sewing end.

(Used as the substitute for thread trimming by depressing back part of the pedal. It works either when the sewing

machine stops or when the sewing machine is running. It is especially effective when the sewing machine is used

as the standing-work machine.)

Function setting

No.30 No.32 No.33

0 0 or 1 0 or 1

1 0 0

1 1 0

1 0 1

1 1 1

Output function

It works as normal touch-back switch.

When operating touch-back switch at the time of depressing front part of the pedal, reverse feed stitching as many as the number of stitches specied by the

function setting No. 31 can be performed. When operating touch-back switch at the time of either stop of the sewing ma-

chine or depressing front part of the pedal, reverse feed stitching as many as the

number of stitches specied by the function setting No. 31 can be performed.

When operating touch-back switch at the time of depressing front part of the pedal,

automatic thread trimming is performed after reverse feed stitching as many as the

number of stitches specied by the function setting No. 31 has been performed. When operating touch-back switch at the time of either stop of the sewing ma-

chine or depressing front part of the pedal, automatic thread trimming is per-

formed after reverse feed stitching as many as the number of stitches specied

by the function setting No. 31 has been performed.

– 34 –

Number of rotation of one-shot stitching (Function setting No. 38)

!8

This function can set, by the pedal operation of one time, the sewing speed of one-shot stitching when the sewing machine continues stitching until completing the number of stitches specied or detecting the material end.

Setting range

3 8

200 to MAX. rpm. <50 / rpm>

2 5 0 0

(Caution) 1. Setting of the one-shot stitching is made by the control panel of the CP170.

2. The max. number of rotation of one-shot stitching is limited by the model of the sewing machine head.

Holding time of lifting presser foot (Function setting No. 47)

!9

Solenoid type presser foot lifter (No. 46 0) can adjust the holding time control of lifting presser foot. This function automatically lowers the presser foot when the time set with the setting No. 47 has passed after lifting the presser foot. When the pneumatic type presser foot lifter (No. 46 1) is selected, the holding time control of lifting presser foot is limitless regardless of the set value.

Setting range

4 7

10 to 600 sec <10 / sec>

Compensation of timing of the solenoid for reverse feed stitching (Function setting No. 51 to 53)

@0

6 0

When the normal and reverse feed stitches are not uniform under the automatic reverse feed stitching action,

this function can change the ON / OFF timing of the solenoid for back tack and compensate the timing.

ENGLISH

Compensation of on-timing of solenoid for reverse feed stitching at the start of sewing (Function set-

ting No. 51)

On-timing of solenoid for reverse feed stitching at the start of sewing can be compensated by the unit of angle.

Adjusting range

5 1

– 36 to 36 <1 / 10˚>

Set value

– –

0 0 18 180 36 360

Compensation of off-timing of solenoid for reverse feed stitching at the start of sewing (Function setting No. 52)

36 18

– 1 8

Compensation angle

360

– –

゜ –

180

゜ –

゜

゜゜

Number of stitches of compensation

0.5

0.5 1

–360˚ –180˚

180˚ 360˚

* When the point

before 1 stitch is

regardedas0˚,

compensation is

0˚

possibleby360˚(1

stitch) in front and in

the rear.

Off-timing of solenoid for reverse feed stitching at the start of sewing can be compensated by the unit of angle.

Adjusting range

36 18

– 5

Compensation angle

360

–

゜ –

180

–

゜ –

゜

゜゜

Number of stitches of compensation

0.5

0.5 1

– 360˚

– 180˚

0˚ 180˚ 360˚

5 2

– 36 to 36 <1 / 10˚>

Set value

– –

0 0 18 180 36 360

Compensation of off-timing of solenoid for reverse feed stitching at the end of sewing (Function setting No. 53)

Off-timing of solenoid for reverse feed stitching at the start of sewing can be compensated by the unit of angle.

Adjusting range

5 3

– 36 to 36 <1 / 10˚>

Set value

–

0 0 18 180 36 360

– 5

Compensation angle

360

– –

゜ –

180

゜ –

゜

゜゜

Number of stitches of compensation

0.5

0.5 1

–360˚ –180˚

0˚ 180˚ 360˚

– 35 –

Foot lift function after thread trimming (Function setting No. 55)

@1

This function can automatically lift the presser foot after thread trimming. This function is effective only

when it is used in combination with the AK device.

0 : off Function of automatically lifting the presser foot is not provided.

5 5

(Presser foot does not automatically go up after thread trimming.)

1 : on Function of automatically lifting the presser foot is provided.

(Presser foot automatically goes up after thread trimming.)

Reverse revolution to lift the needle after thread trimming (Function setting No. 56)

This function is used to make the sewing machine rotate in the reverse direction after thread trimming to

lift the needle bar almost to highest position. Use this function when the needle appears under the presser

foot and it is likely to make scratches on the sewing products of heavy-weight material or the like.

0 : off Function of making the sewing machine rotate in the reverse direc-

5 6

tion to lift the needle after thread trimming is not provided.

1 : on Function of making the sewing machine rotate in the reverse direc-

tion to lift the needle after thread trimming is provided.

(Caution) The needle bar is raised, by rotating the machine in the reverse direction, almost to

the highest dead point. This may result in slip-off of the needle thread. It is therefore

necessary to adjust the length of thread remaining after thread trimming properly.

Bobbin thread remaining amount detection function (Function setting No. 57, No. 61)

This function detects the amount of the bobbin thread used and informs of the time of replacement of the

bobbin.

This function is used when the bobbin thread remaining amount detection device (AE) is attached.

As for the details, refer to the instruction manual for the bobbin thread remaining amount detection device.

5 7

(Caution) Be sure to set the setting No. 57 to ineffective (“0”) when the AE device is not attached.

(“E43” is displayed, and the sewing machine is not actuated.)

Function of holding predetermined upper / lower position of the needle bar (Function setting No. 58)

When the needle bar is in the upper position or in the lower position, this function holds the needle bar by

applying a brake slightly.

0 : off Not provided with the function of holding predetermined upper/low-

5 8

er position of the needle bar

1 : on Provided with the function of holding predetermined upper/lower posi-

tion of the needle bar

Change-over function of AUTO / Pedal for sewing speed of the reverse feed stitching at the start

of sewing (Function setting No. 59)

This function selects whether the reverse feed stitching at the start of sewing is performed without a break

at the speed set by the function setting No. 8 or the stitching is performed at the speed by the pedal opera-

tion.

0 : Manu. The speed is indicated by the pedal operation.

5 9

1 : Auto Automatic stitching at the specied speed

(Caution) 1. The max. sewing speed of the reverse feed stitching at the start of sewing is limited

to the speed set by the function setting No. 8 regardless of the pedal.

2. When “0” is selected, stitches of reverse feed stitching may not match those of normal feed stitching.

– 36 –

Function of stop immediately after the reverse feed stitching at the start of sewing (Function setting No. 60)

This function temporarily stops the sewing machine even when keeping depressing the front part of the pedal at the

time of completion of process of reverse feed stitching at the start of sewing. It is used when sewing a short length by reverse feed stitching at the start of sewing.

6 0

0 : Not provided with the function of temporary stop of

the sewing machine immediately after the reverse feed stitching at the start of sewing

1 : Provided with the function of temporary stop of the

sewing machine immediately after the reverse feed

Stop the sewing machine

temporarily to change

direction of sewing products.

stitching at the start of sewing

Presser foot lifting solenoid output duty setting (Function setting No. 67)

@7

Output duty of presser foot lifting solenoid can be changed. When heating is great, it is effective to lessen the value.

(Caution) When the value is excessively small, malfunction will be caused. So, be careful when

changing the value.

Setting range : 5 to 40% <5%>

6 7

Function of soft-down of presser foot (with AK device only) (Function setting Nos. 70 and 49)

@8

2 0

This function can softly lower the presser foot. This function can be used when it is necessary to decrease contact noise, cloth defect, or slippage of cloth at the time of lowering the presser foot.

Note : Change the time of function setting No. 49 together at the time of selecting the function of

soft-downsincethesufcienteffectcannotbeobtainedunlessthetimeoffunctionsetting

No. 49 is set longer when lowering the presser foot by depressing the pedal.

ENGLISH

0 to 250 ms

4 9

1 4 0

10 ms/Step

0 : Function of soft-down of presser foot is not operative. (Presser foot is

7 0

rapidly lowered.)

1 : Selection of function of soft-down of presser foot

Function of improving inching operation (Function setting Nos. 71 and 72)

This function improves operability of one-stitch sewing by operating the high-speed switch for the pedal or

sewing machine for standing work. The more the set value becomes, the more the speed limitation at the start of rotation is remarkably added

and operability of one-stitch sewing is improved. Function setting No. 71 limits the speed at the time of re-acceleration on the way of reducing speed. Function setting No. 72 limits acceleration from the stop state.

Note : This function fails to work when turning ON the power or starting sewing immediately after

thread trimming.

0 to 5

7 1

7 2

0 to 5

Pedal neutral

Function setting No. 72

rpm

Depressing pedal

Function setting No. 71

– 37 –

Function of reducing speed of reverse feed stitching at the start of sewing (Function setting No. 92)

Function to reduce speed at the time of completion of reverse feed stitching at the start of sewing : Normal

use depending on the pedal condition (Speed is accelerated to the highest without a break.)

This function is used when temporary stop is used properly. (Cuff and cuff attaching)

0 : Speed is not reduced.

9 2

1 : Speed is reduced.

Temporary stop

Retry function (Function setting No. 73)

Sew without stopping

without a break.

When the retry function is used, if the sewing material is thick and not pierced with needle, this function makes the needle pierce in the material with ease.

0 : Normal

7 3

1 : Retry function is provided.

Function to select the start-up speed of the sewing machine (Function setting No. 76)

This function is selected in the case where the speed of the sewing machine is desired to be more at the time of start-up. (Time required to start is shortened by approximately 10%.)

0 : Normal curve

7 6

1 : More sharp curve

(Caution) If “1” is set, motor may move irregularly. In addition, noise may occur when the sewing

machine is running or noise may increase when the sewing machine is running.

Presser foot lifting solenoid suction time setting (Function setting No. 84)

Suction time of presser foot lifting solenoid can be changed. When heating is great, it is effective to lessen

the value.

(Caution) When the value is excessively small, malfunction will be caused. So, be careful when

changing the value.

Setting range : 40 to 300ms <10/ms>

8 4

Function of pedal curve selection (Function setting No. 87)

1 0 0

This function can perform the selection of the curve of number of rotation of the sewing machine against the depressing amount of the pedal. Change to this function when you feel that inching operation is hard or that pedal response is slow.

8 7

0 : Number o f rotation of t h e sewing machin e i n terms of t h e

depressing amount of the pedal increases linearly.

1 : Reaction to intermediate speed in terms of the depressing amount

of the pedal is delayed.

2 : Reaction to intermediate speed in terms of the depressing amount

of the pedal is advanced.

Initial motion UP stop position move function (Function setting No. 90)

Pedal stroke (mm)

Number of rotation (rpm)

Effective/ineffective of automatic return to UP stop position immediately after turning ON the power can be set.

0 : Ineffective

9 0

1 : Effective

Function added to the needle up / down compensating switch (Function setting No. 93)

One stitch operation can be performed only when the needle up / down compensating switch is pressed at the time of upper stop immediately after turning ON the power switch or upper stop immediately after thread trimming.

0 : Normal (Only needle up / down compensating stitching operation)

9 3

1 : One stitch compensating stitching operation (upper stop / upper stop)

is performed only when aforementioned changeover is made.

– 38 –

Continuous stitching + one shot stitching nonstop function (Function setting No. 94)

In IP-110 program functions, this is a function that does not stop the sewing machine at the last of a step and proceeds to the next step when performing sewing by combining continuous stitching with one shot stitching. Select this function when you desire to execute the overlapped stitching of 19 stitches or more.

0 : Normal (Stop when a step has completed.)

9 4

1 : The sewing machine proceeds to next step without stopping after a

step has completed.

Setting of max. number of rotation of the sewing machine head (Function setting No. 96)

This function can set the max. number of rotation of the sewing machine head you desire to use. Upper limit of the set value varies in accordance with the sewing machine head to be connected.

50 to Max. [rpm] <50 / rpm>

9 6

Sewing counter input function (Function setting No. 101)

4 0 0 0

This function can change over the count of the sewing counter displayed on the panel, when connecting IP-100 panel, whether to the external sewing counter switch input or to the automatic updating by the internal thread trimming count.

0 : Every time thread trimming is performed, the counter automatically

1 0 1

counts up.

1 : Every time the sewing counter switch is inputted, the counter counts up.

ENGLISH

Main shaft reference angle compensation (Function setting No. 120)

Main shaft reference angle is compensated

1 2 0

– 2 8

Setting range

– 35 to 35˚ <1 / ˚>

UP position starting angle compensation (Function setting No. 121)

Angle to detect UP position starting is compensated.

1 2 1

Setting range

– 15 to 15˚ <1 / ˚>

DOWN position starting angle compensation (Function setting No. 122)

$2

Angle to detect DOWN position starting is compensated.

1 2 2

Setting range

– 15 to 15˚ <1 / ˚>

– 39 –

7. Automatic compensation of neutral point of the pedal sensor

Whenever the pedal sensor, spring, etc. are re-

placed, be sure to perform following operation :

1) Pressing switch 2, turn ON the power switch.

2) Indication on the screen will be as illustrated in

. At this time, the value indicated in the 7 seg-

ments of four gures is the compensation value.

(Caution) 1. At this time, the pedal sensor does

not work properly if the pedal is

depressed. Do not place the foot or

any object on the pedal. Warning

sound “peeps” and the compensa-

tion value is not displayed.

2. When any thing other than number

is displayed in 7 segment of 4 dig-

its, refer to the Engineer’s Manual.

3) Turn OFF the power switch, and turn ON the

power switch again to return to the normal mode.

 8.Selectionofthepedalspecications

KFL • PFL

KFL setting

KFL • PFL

PFL setting

When the pedal sensor is changed (KFL / PFL or PFL / KFL), replace jumper 1 to t the pedal spci-

cations changed.

(Caution) 1. P ed a l s e ns o r w i th tw o sp r ing s

loc a te d at th e b a ck pa r t o f t h e

pe dal type i s PFL, and t hat with

one spring t y p e is KFL. Set t h e

pedal sensor to PFL when lifting

the presser foot by depressing the

back part of the pedal.

2. When changing the jumper, be sure

to do the work after turning OFF

the power. If the jumper is changed

while the power is ON, the setting

does not change.

The main unit may be broken.

– 40 –

9. Setting of the auto lifter function

6 5

(Caution) 1. To perform re-turning ON of the power, be sure to perform after the time of one sec-

ond or more has passed.

(If ON / OFF operation of the power is performed quickly, setting may be not changed

over well.)

2. Auto-lifter is not actuated unless this function is properly selected.

3. When “FL ON” is selected without installing the auto-lifter device, starting is mo-

mentarily delayed at the start of sewing. In addition, be sure to select “FL OFF” when

the auto-lifter is not installed since the touch-back switch may not work.

When the auto-lifter device (AK) is attached, this

function makes the function of auto-lifter work.

1) Turn ON the power switch while pressing switch

inside the control box.

2) LED display is turned to 5, 6(FL ON) with

“beep”, and the function of auto-lifter becomes

effective.

3) Turn OFF the power switch and turn ON the

power switch after closing the front cover. The

machine returns to the normal motion.

4) Repeat the operation 1) to 3), and LED display

is turned to (FL OFF). Then, the function of auto-

lifter does not work.

FL ON : Auto-lifter device becomes effective.

FL OFF : Auto-lifter function does not work.

(Standard at the time of delivery)

Similarly, the presser foot is not automatically

lifted when programmed stitching is completed.

ENGLISH

10. Connection of the pedal of standing-work machine

1) Connect the connector of PK70 to connector 1 (CN32 : 12P) of SC-910N.

2) Tighten the cord of PK70 together with other

cords with cable clip band 2 attached to the

side of the box after passing it through the cable

clamp.

(Caution) Be sure to turn OFF the power before

connecting the connector.

– 41 –

11. External input / output connector

External input/output connector 1 which can take

out the following signals that are convenient when

installing counter or the like outside is prepared.

(Caution) When using the connector, note that

the engineer who has the electrical

knowledge has to work.

Table of assignment of connector and signal

CN42 Signal name Input /

output 1 +5V - Power source 2 LS(N) 3 N.C. - – 4 UDET(N) Output “L” is output when needle bar is at LOW position. DC5V 5 DDET(N) Output “L” is output when needle bar is at UP position. DC5V 6 HS(N) Output Rotation signal 45 pulses/rotation DC5V 7 BTD(N) Output “L” is output when the back-tack solenoid works. DC5V 8 TRMD(N) Output “L” is output when the thread trimmer solenoid works. DC5V 9 LSWO(P) Output Rotation request (pedal or the like) monitor signal DC5V

10 S.STATE(N) Output “L” is output when the sewing machine is in the stop state. DC5V

11 LSWINH(N) Input

12 SOFT Input Rotation speed is limited to the soft-speed while “L” signal is

13 SGND - 0V

Output Rotation signal 360 pulses/rotation

Rotation by pedal is prohibited while “L” signal is being inputted.

being inputted.

JUKI genuine part No. Connector : Part No. HK016510130 Pin contact : Part No. HK016540000

Description Electric spec.

DC5V

DC5V, –5mA DC5V, –5mA

12. Connection of the material end sensor (ED)

1) Connect the connector of material end sensor

(ED) to connector 1(CN45 : 6P) of SC-910N.

2) Tighten the cord of the material end sensor to-

gether with other cords with cable clip band 2

attached to the side of the box after passing it

through the cable clamp.

(Caution) 1. Be sure to turn OFF the power be-

2. For the use of the material end sen-

– 42 –

fore connecting the connector.

sor, refer to the Instruction Manual

attached to the material end sensor.

13. Initialization of the setting data

2 4

All contents of function setting of SC-910N can be

returned to the standard set values.

1) Pressing all switches 2, 3 and 4 inside the

front cover, turn ON the power switch.

2) LED displays indication 5 with the sound “peep”,

and initialization starts.

3) The buzzer sounds after approximately one sec-

ond (single sound three times, “peep”, “peep”, and “peep”), and the setting data returns to the

standard setting value.

(Caution) Do not turn OFF the power on the way

of initializing operation. Program of the

main unit may be broken.

4) Turn OFF the power switch and turn ON the

power switch after closing the front cover. The

machine returns to the normal motion.

(Caution) 1. When this operation is performed,

the neutral compensation value of

the pedal sensor becomes “0”. Ac-

cordingly, be sure to execute the

operation of automatic pedal sen-

sor neutral compensation before

using the sewing machine. (Refer

“#-7. Automatic compensation of

neutral point of the pedal sensor” p.

40.)

2. Even when this operation is per-

formed, the sewing data set by the

operation panel cannot be initial-

ized.

ENGLISH

– 43 –

. MAINTENANCE

1. Removing the rear cover

WARNING :

To prevent personal injuries caused by electric shock hazards or abrupt start of the sewing machine, remove the cover after turning OFF the power switch and a lapse of 5 minutes or more. To prevent personal injuries, when a fuse has blown out, be sure to replace it with a new one with the same capacity after turning OFF the power switch and removing the cause of the blown-out of the fuse.

1) Press the OFF button of the power switch to turn

OFF the power after conrming that the sewing

machine has stopped.

2) Draw out the power cord coming from the power

plug socket after conrming that the power switch is turned OFF. Perform the work of step 3) after conrming that the power has been cut and it has

passed for 5 minutes or more.

3) Loosen setscrews 2 in front cover 1.

4) Open front cover 1 while pressing latch 3

located on the side face.

2. Replacing the fuse

5) Loosen two screws 5 after loosening screw 4,

and remove rear cover 6. When attaching rear

cover 6, tighten two secrews 4 after lightly en-

tering screw 4, and tighten screw 4 again.

1) Hold the glass section of the fuse 1 and remove

it.

2) Use the fuse of which capacity is specied.

1 : 3.15A/250V time-lag fuse

(Power circuit protection fuse)

Part No. KF000000080

– 44 –

3. Error codes

In case of the following, check again before you judge the case as trouble.

Phenomenon Cause Corrective measure

When t ilting the s ewing ma chine, the bu zzer bee ps and th e sewing machine cannot be operated. Solenoids for thread trimming

Solenoids for thread trimming,

reverse feed, wiper, etc. fail to work.

Hand lamp does not light up.

Even when depressing the pedal immediately after turning ON the power, the sewing machine does not run. When depressing the pedal after

depressing the back part of pedal

once, the sewing machine runs.

The sewing machine does not stop even when the pedal is returned to its neutral position.

Stop position of the sewing machine varies (irregular).

Presser foot does not go up even when auto-lifter device is attached.

Touch-back switch fails to work. Presser foot is going up by auto-liter

UP position move fails to work when

all lamps on the panel light up.

Sewing machine fails to run. Motor output cord (4P) is disconnected. Connect the cord properly.

When ti l t ing th e se w i ng ma c h i n e without turning OFF the power switch,

Action given on the left side is taken for safety sake.

When the fuse for solenoid power protection has blown out

Neutral position of the pedal has varied.

(Neutral position may be shifted when changing spring pressure of the pedal

or the like.)

When tightening the screw in the handwheel is forgotten at the time of adjustment of needle stop position.

Auto-lifter function is OFF. Select “FL ON” by auto-lifter function

Pedal system is set to KFL system

Cord of auto-lifter device is not connected to connector (CN40).

device.

Auto-lifter device is not attached. However, auto-lifter function is ON.

The mode is in the function setting mode. The switch on the CTL p.c.b. is pressed by the bound cords and the aforementioned mode resulted.

Connector (CN39) of motor signal cord is disconnected.

Tilt the sewing machine after turning OFF the power.

Check the fuse for solenoid power

protection.

Execute the automatic neutral correction function of the pedal sensor.

Securely tighten the screw in the handwheel.

selection.

Change the jumper to PFL setting to lift the presser foot by depressing the

back part of the pedal.

Connect the cord properly.

Operate the switch after the presser foot lowered.

Select “FL OFF” when auto-lifter

device is not attached.

Remove the front cover, and arrange the cords by the regular binding procedure described in the Instruction Manual.

Connect the cord properly.

ENGLISH

– 45 –

n addition, there are the following error codes in this device. These error codes interlock (or limit function) and inform

the problem so that the problem is not enlarged when any problem is discovered. When you request our service, please

conrm the error codes.

Checking procedure of the error code

1) Pressing switch 1 in the control box, turn ON the power switch.

2) LED becomes display 2 with the sound of “peep” and the latest error code is displayed.

3) Conrmation of the contents of previous error can

be performed by operating switches 3 or 4. (When

the conrmation of the contents of previous error

advanced to the last, the warning sound peeps in single tone two times.)

(Caution) When operating switch 3, one before the

existing error code is displayed.

When operating switch 4, one after the ex-

isting error code is displayed.

Error code list

No.

Description of error detected

E000 Execution of data

initialization (This is not the error.)

E302 Fall detection switch failure

(W h e n the saf e t y switc h

works)

E221 Grease-up error • Greasing warning of LH-41**

E003 Disconnection of

synchronizer connector

E004 Synchronizer lower

position sensor failure

E005 Synchronizer upper

position sensor failure

E906 Operation panel

transmission failure

E007 Overload of motor • When the machine head is locked.

E008 Machin e h ead connec to r

failure (Resistance pack)

E808 Solenoid short circuit • So le n o i d po w e r do e s no t be c o m e

E809 Holding motion failure • Solenoid is not changed over to holding

E810 Solenoid current

abnormality

Cause of occurrence expected Items to be checked

• When the machine head is changed.

• Wh en the i nitia l i zatio n operat i o n is executed

• When fall detection switch is input in the state that the power is turned ON.

(Greasing warning after passing the

specied time)

• When position detec tion signa l is not inpu t f rom the sew ing ma ch ine he ad synchronizer.

• When the sync hron izer has brok en.

• Disconnection of operation panel cord

• Operation panel has broken.

•

When se w i n g ex t r a - h e a vy mate r i a l beyond the guarantee of the machine head.

• When the motor does not run.

• Motor or driver is broken.

• When the machine head connector is not properly read.

normal voltage.

motion.

• Solenoid rare short-circuit. • Solenoid resistance

• Check whether the machine head is tilted

without turning OFF the power switch (sewing machine operation is prohibited for safety

sake).

• Check whether the fall detection switch cord is caught in the sewing machine or the like.

• Check whether the fall detection switch lever

is caught in something.

• Perform greasing and execute the reset operation.

• Check the synchronizer connector (CN30)

for loose connection and disconnection.

• Check whether the synchronizer cord has br o ken s ince the c o rd i s caug h t in the

machine head.

• C h e c k th e opera t i o n p a n el co n n e c t o r

(CN3 4, CN3 5) for loo se con necti on and disconnection.

• Chec k w hether the operation panel cord has broken since the cord is caught in the

machine head.

• C h e c k wh e th e r th e t hr e a d ha s be e n

entangled in the motor pulley.

• Check the motor output connector (4P) for

loose connection and disconnection.

• Check whether there is any holdup when

turning the motor by hand.

• Check the machine head connector (CN31)

for loose connection and disconnection.

• Check whether the machine head cord is caught in the pulley cover or the like.

• Check whether the solenoid is abnormally

heated. (CTL circuit board asm. Circuit is

broken.

– 46 –

No.

Description of error detected

E811 Overvoltage • When voltage higher than guaranteed

E813 Low voltage • When voltage l ower than guaranteed

E924 Encoder failure • Motor driver has broken.

E944 R i gh t n e e d le c o nt r ol

impossible (When LH-4168, or 4188 is selected)

E945 L e f t n e e d l e c o n t r o l

impossible (WhenLH-4168, or 4188 is selected)

E046 Both-needle lock

(When LH-4168, or 4188 is selected)

E730 Encoder failure • W hen the moto r si gnal is n ot pro perly

E731 Motor hole sensor failure

E303 Woodruff plate sensor error • Woodruff plate sensor signal cannot be

E343 Bo bbin thr ead r ema i nin g

amount sensor unit failure

Cause of occurrence expected Items to be checked

one is inputted.

• 200V has been inputted to SC-910N of

100V specications.

• JA : 220V is applied to 120V box.

• CE : 400V is applied to 230V box.

one is inputted.

• 100V has been inputted to SC-910N of

200V specications.

• JA : 120V is applied to 220V box

• Inner circuit is broken by the applied overvoltage

• Right needle has shifted from the origin during holding it.

• Right needle has shifted from the origin during releasing left needle.

• Right needle has shifted from the origin during holding it.

• Right needle has shifted from the origin during releasing left needle.

• Both needles are locked at the time of turning ON the power. (Needles are in the lifting position.)

inputted.

detected.

• When the position of the detection bar of the AE device is shifted from the home position.

• Check whether the applied power voltage is higher than the rated voltage + (plus) 10% or more.

• Chec k whe ther 100 V/20 0 V c h ang e ove r connector is improperly set.

In the aforementioned cases, POWER p.c.b is broken.

• Check whether the voltage is lower than the rated voltage - (minus) 10% or less.

• Che ck wheth er 100 V/200 V c han geove r connector is improperly set.

• C h e c k wh e t h er fu s e or re ge n e r a tiv e resistance is broken.

• Chec k whet h e r the right needl e orig i n sensor is broken.

• Check whether needle bar has shifted from the holding position by the exterior force.

• Check whether the left needle origin sensor is broken.

• Check whether needle bar has shifted from the holding position by the exterior force

• Check whether left-right needl e position origin sensors are broken.

• Check whether the sensor connectors are disconnected or loosely connected.

• Check the motor signal connector (CN39) for loose connection and disconnection.

• Check whether the motor signal cord has bro k e n si nce the c o r d is caug h t in the machine head.

• C he c k w h e t he r t he m a ch i n e h e a d corresponds with the machine type setting.

• Check whether the motor encoder connector is disconnected.

• Check whether the detection bar of the AE device has returned to the correct position.

• Check whether the function setting No. 57 has been mistakenly set.

• Check the AE device connectors (CN121, C N 1 2 3) f o r l o o s e c on n e c t io n a n d disconnection.

• Che c k wh e ther the A E dev i ce c ord h as bro k e n si nce the c o r d is caug h t in the machine head.

– 47 –

JUKI SC-910N Instruction Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

CONTENTS

1. Installing M91 small sized motor unit

2. Installing to the table

3. Adjusting the belt (when M91 is used)

4. Adjusting the belt cover (when M91 is used)

5. Connecting the cords

6. Attaching the connecting rod

7. Setting procedure of the machine head

8. Machine head list

9. Adjusting the machine head (DDL-9000A only)

1. Operating procedure of SC-910N

2. Explanation of the operation panel

3. Operating procedure of the sewing pattern

(1) Reverse stitching pattern

(2) Overlapped stitching pattern

(3) Special setting

4. Setting for functions of SC-910N

5. Function setting list

6. Detailed explanation of selection of functions

7. Automatic compensation of neutral point of the pedal sensor

9. Setting of the auto lifter function

10. Connection of the pedal of standing-work machine

11. External input / output connector

12. Connection of the material end sensor (ED)

13. Initialization of the setting data

1. Removing the rear cover

2. Replacing the fuse

3. Error codes