JUKI SC-500 Instruction Manual

ENGLISH

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

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

1. Installing the motor unit ......................................................................................... 1

2. Installing the control box ....................................................................................... 1

3. Installing the belt .................................................................................................... 2

4. Adjusting the pulley cover ..................................................................................... 2

5. Installation and adjustment for the protecting pin

and the belt slip-off preventing bracket................................................................ 3

6. Connecting the cords .............................................................................................. 4

7. Attaching the connecting rod ............................................................................... 11

3. FOR THE OPERATOR ........................................................................... 11

1. Operation of SC-500 ............................................................................................. 11

2. Explanation of the operation panel ..................................................................... 13

3. Setting for functions of SC-500 ........................................................................... 18

4. Function setting list .............................................................................................. 20

5. Detailed explanation of selection of functions .................................................. 24

6. Automatic compensation of neutral point of the pedal sensor ........................ 32

7. Bobbin thread remaining amount detection device, AE ................................... 32

8. Connection of the pedal of standing-work machine ......................................... 32

9. Setting of the auto lifter function ........................................................................ 33

10. Connection of the material end sensor (ED) ..................................................... 33

11. Initialization of the setting data .......................................................................... 34

4. MAINTENANCE ...................................................................................... 34

1. Replacing the fuse ................................................................................................ 34

2. Changing procedure between 100V to 120V and 200V to 240V

(Possible only for the voltage changeover type) ............................................... 36

3. Error codes ............................................................................................................ 37

1. SPECIFICATIONS

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

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

Operating environment

Input 390VA (LZ-228* : 460VA) 390VA (LZ-228* : 460VA) 390VA (LZ-228* : 460VA)

(Caution) 1. Indication of the power consumption is the mean power consumption when DDL-8700

is mounted in accordance with the operating conditions JUKI specifies.

2. The power consumption changes in accordance with the operating conditions and the mounted machine head. So, be careful.

3. Instantaneous maximum power consumption may become 1.5 times or more than the mean power consumption.

Temperature : 0 to 40˚C Temperature : 0 to 40˚C Temperature : 0 to 40˚C

Humidity : 90% or less Humidity : 90% or less Humidity : 90% or less

2. SET-UP

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

1. Installing the motor unit

Install the motor unit on the table with the fitting bolt

asm. supplied with the unit as accessories.

Convex washer

Nat

Spring

washer

At this time, insert the nuts and washers supplied with

the unit as accessories as shown in the figure so that

the motor unit can be securely fixed on the table.

1) Press three bolts 1 supplied with the unit as

accessories into the motor hanging bolt hole in the

table and fix them.

2) Temporarily tighten convex washer, spring washer

and nut on the side where two bolts are attached.

3) Hang the motor unit to the washer which has been

temporarily tightened, and attach convex washer,

spring washer and nut to the other bolt on the

opposite side.

4) After adjusting the installing position of the motor,

securely tighten the respective nuts.

2. Installing the control box

1) Loosen four screws 2 supplied with the motor unit as accessories, tighten screws 2 after hanging control box unit 3 to the screws, and fix control box unit 3.

− 1 −

3. Installing the belt

15mm (9.8N)

Tension

adjust nuts

4. Adjusting the pulley cover

Belt

1) The belt distance, between sewing machine pulley

and motor pulley, must be parallel.

2) The belt tension should be adjusted by turning the

tension adjust nuts to change height of the motor,

so that the belt sinks down by about 15 mm (9.8N)

when it is depressed by band at the center of the

belt span.

If the belt tension is not tight, speed is unstable at

low-speed or medium-speed operation, and the

needle will not stop exactly in position.

1) After adjusting the belt tension, adjust the pulley

cover 1 so that the clearances between the belt and the pulley cover 1, a and b should be the

same.

2) After the completion of adjustment, tighten screws

2 located on the side of pulley cover 1 and securely fix the pulley cover 1 so that it does not

slip out of position.

− 2 −

5. Installation and adjustment for the protecting pin and the belt slip-off preventing bracket

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 ascertaining that the motor is at rest.

1) Attaching hole for the protecting pin

To attach protecting pin 1, select either attaching hole A or attaching hole B in the motor pulley cover

Belt

in accordance with the direction of rotation of the

sewing machine and attach the pin in the selected hole using screw 2 and washer 3 supplied with

the unit.

a) If the motor shaft rotates in direction A in the

figure on the above: / Attach protecting pin 1 in attaching hole A .

b) If the motor shaft rotates in direction B in the

figure on the above: / Attach protecting pin 1 in attaching hole B .

Attaching hole A

4 mm or less

Belt

4 mm or less

Adjusting position for protecting pin

Pulley cover

Belt

3 mm or less

Attaching hole B

Motor pulley

Adjusting position for belt slip-off preventing braket

2) Adjustment for the protecting pin and the belt slip-

off preventing bracket Adjust the position of protecting pin 1 and belt slip- off preventing bracket 4 in accordance with the

figure on the left.

a) Adjusting the protecting pin

Loosen screw 2 and adjust so that protecting pin 1 is positioned at the location indicated in

the figure on the left.

b) Adjusting belt slip-off preventing bracket

Loosen screw 5 and adjust so that belt slipoff preventing bracket 4 is positioned at the

location indicated in the figure on the left. If protecting pin 1 is not properly adjusted, it

is possible that your fingers may be caught in

the clearance provided between the pulley and

the belt resulting in injury. If belt slip-off preventing bracket 4 is not properly adjusted,

it is possible to allow the belt to slip off causing

safety hazard.

3) After the adjustment, tighten screws 2 and 5 so as to secure protecting pin 1 and belt slip-off preventing bracket 4 to prevent these components

to fluctuate because of vibration.

4) Before starting the operation of the sewing machine, ascertain that protecting pin 1 and belt slip-off preventing bracket 4 do not come in contact

with the pulley and the belt.

− 3 −

6. 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 specified 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.

Following connectors are prepared when loosening the front cover fixing screws A of SC-500 and opening the

cover. Connect the machine head connectors to the positions corresponding to each other so as to fit the

devices mounted on the machine head.

OPC circuit board A (asm.)

Front cover

1 CN30 Motor signal connector 2 CN32 Machine head connector 3 CN33 Needle bar position detector connector 4 CN36 Machine head solenoid connector 5 CN37 Presser foot lifter solenoid connector 6 CN38 CP-160 panel connector 7 CN39 Standing machine pedal connector 8 CN40 Signal for extension connector (For the details, refer to Engineer's Manual.) 9 CN51 Not used

!0 CN52 Not used !1 CN53 Bobbin thread remaining amount detection solenoid connector !2 CN189 External interface signal connector !3 CN59 Bobbin thread count-up output connector !4 CN55 Material end detection sensor (ED) connector !5 CN58 Standing machine pedal connector !6 CN57 Bobbin thread remaining amount detection sensor connector

− 4 −

1) Pass the cords 笊 of the thread trimming solenoid,

reverse-stitching solenoid, etc., and the cords of the synchronizer 笆, machine head 4P connector 3through hole A in the table to route them down

under the machine table.

2) Loosen setscrew 5 in front cover 4.

3) Pressing the side of front cover 4 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 7 (CN36).

5) Connect 4P connector coming from the machine head 3 to connector 8 (CN32).

6) Connect 7P connector 2 coming from the machine head to connector 9 (CN33).

7) When the optional AK device is attached, connect 2P connector coming from the AK device to connector !1(CN37) .

8) Connect the connector 6 coming from the motor to connector !0 (CN30) on the circuit board.

(Caution)

1. When using the AK device, set whether to

use the AK device after confirming how to

select the auto-lifter function. (Refter to

page 33.)

2. Be sure to securely insert the respective

connectors after checking the inserting

directions since all connectors have the

inserting directions.

(When using a type with lock, insert the

connectors until they go to the lock.)

The sewing machine is not actuated unless

the connectors are inserted properly.

In addition, not only the problem of error

warning or the like occurs, but also the

sewing machine and the control box are

damaged.

3. Perform the insertion of the connector by

lending your hands to the front cover.

− 5 −

[ Connection of the connector for CP panel ]

Exclusive connectors are prepared for connection of

the connector for CP-160.

Paying attention to the orientation of the connector !2, connect it to connector !3 located on the circuit

board. After connecting, securely lock the connector.

9) After inserting the connector, put all cords together with cable clip band !4 located on the side of the

box.

(Caution)

1. Fix the cord clamp and the cable clip band

following the attaching procedure.

2. When removing the cable clip band,

remove it while pressing the hook of the

cable clip band.

How to fix cable clip band !4

Pull

How to remove cable clip band

Push

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

Push

Push the hook.

(Caution) 1. Fix the cable clip band following the attaching procedure as shown in the figure.

2. To remove the cable clip band, push the cable clip band until it comes off while pressing

the hook of the band following the removing procedure as shown in the figure.

− 6 −

10) Close front cover 4 while paying attention to

pinching of the wire.

11) After that, fix it with the screw 5.

12)Connect connector 4P !5 to connector !

6 locat

on the side of the box.

13)Connect motor

outpu

t cord !7 of the power switch

to connector !8.

14)Binding of the cords coming from machine head

Bind the cable attached to the machine head at two places with the cable clip band !9 supplied with

the unit as accessories as shown in the figure.

(Do not bind the motor signal cable together.)

15)Make sure that the power switch is turned OFF and insert power supply cord @0 coming from the

power switch into the power plug socket.

(Caution)

1. Check again the supply voltage indicated

on the control box before connecting the

power cord.

2. Prepare the power switch conformed to the

safety standard.

3. Be sure to connect the ground wire ( green

/ yellow).

− 7 −

[ For CE specifications only ]

1) Remove three screws 1 located on the side of the

control box.

2) Set power source cover installing plate 2 supplied

with the unit as accessories to the control box main

unit with the three screws which have been

removed.

Crimp style terminal section

3) Remove nut section 4 from cord bush 3 supplied

with the unit as accessories.

4) After checking the direction of the nut, pass the

nut through the power source cord supplied with

the unit as accessories.

(Caution) Note that the flat face of the nut should

face the power source cover installing plate

side.

5) Pass the terminal of the power source cord through

the hole from the inside of the power source cover

installing plate.

6) Pass the cord bush, while paying attention to the

direction, through the power source cord from the

power source cord terminal side.

7) Insert connector 5 of the power source cord to

the connector (top) of the control box.

(Caution) Securely insert the connector while

paying attention to the direction.

8) Tighten nut 4 and securely fix the cord bush to the

installing plate.

9) Clamp section b of the cord bush and securely fix

it to the cord.

− 8 −

10) Insert connector 6 coming from the motor to the

connector of the control box from the inside.

11) Securely fix power source cover 7 supplied with

the unit as accessories to power source cover installing plate 2 with two screws 8 supplied with

the unit as accessories while being careful that the

cord is not caught by the cover.

* For handling the cable, refer to 14) and 15) of 6. Connecting the cords.

− 9 −

[ For LA specifications only ]

1) Remove three screws 1 located on the side of the

control box.

2) Set power source cover installing plate 2 supplied with the unit as accessories to the control box main unit with the three screws which have been removed.

3) Pass the terminal of the power source cord through the hole from the inside of the power source cover installing plate.

4) After checking the direction of the nut 3, pass the nut through the power source cord supplied with the unit as accessories and insert it into the conduit.

(Caution) Note that the flat face of the nut should

face the power source cover installing plate side.

5) Securely fix it to the installing fittings with nut 3 from both sides.

6) Insert connector 4 of the power source cord to the connector (top) of the control box.

(Caution) Securely insert the connector while paying attention to the direction.

7) Securely fix power source cover 5 supplied with the unit as accessories to power source cover installing plate 2 with two screws 6 supplied with the unit as accessories while being careful that the cord is not

caught by the cover.

* For handling the cable, refer to 14) and 15) of 6. Connecting the cords.

− 10 −

7. 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 pedal 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.

3. FOR THE OPERATOR

1. Operation of SC-500

笊

笆

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

the power.

(Caution) When the buzzer is kept beeping

immediately after turning ON the power, press OFF button 2 on the sewing machine

to turn OFF the power since connection of

the cord or power voltage may be wrong.

2) When the needle bar is not in its UP position, it

automatically rotates to reach the UP position.

(Caution)

1. When turning ON the power for the first

time, it will be slightly delayed since

initialization is performed.

2. When turning ON the power, do not place

your hands under the needle.

3) When depressing front part 4 of the pedal, the

sewing machine rotates at the number of

revolutions in accordance with the depressing

amount.

When the pedal is returned to the neutral position,

the sewing machine stops.

4) When lightly depressing back part 5 of the pedal,

the presser goes up. (PFL type only)

5) When strongly dpressing back part 6 of the pedal,

thread trimming is performed.

(Caution) For KFL and PFL types, thread trimming

entering point is different from each other.

− 11 −

6) When operation panel 7 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 8, reverse feed

can be performed.

8) When sewing is completed, make sure that the

sewing machine has stopped. Then, press the OFF button 2of the power switch

to turn OFF the power.

− 12 −

2. Explanation of the operation panel

1 / switch : Used for determining the contents of setting.

2 / switch : Used for changing the contents of setting.

3 switch : Used for changing the contents of the selected display (flashing

4 switch : Used for changing the contents of the selected display (flashing

When this switch is pressed, flashing stops and the contents of setting are determined.

When this switch is pressed, changeable positions flash on and off. By pressing the switch, flashing position shifts in the right direction.

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

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

5 PATTERN SELECTION display : The selected pattern is displayed.

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

AT START display “ ” Without reverse stitching display / “ ” Reverse stitching display/

“ ” Double reverse stitching display

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

AT END display “ ” Without reverse stitching display / “ ” Reverse stitching display/

“ ” Double reverse stitching display

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

displayed.

9 MATERIAL EDGE SENSOR : Lights up when the material edge sensor setting is selected.

display Function setting No. 2

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

STITCHING display Function setting No. 76

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

THREAD TRIMMING display front part of the pedal is selected.

Function setting No. 3

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

PROHIBITION display Function setting No. 9

− 13 −

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

Overlapped stitching pattern

⇔

CDC

[ Setting procedure of the reverse stitching ]

1) Hold pressing / switch 1, and press

/ switch 2 to select the reverse

stitching pattern.

(Every time / switch 2 is pressed,

reverse stitching pattern/overlapped stitching

pattern change over alternately.)

Flash

Shift direction

Contents of reverse stitching slection

updating with swith3

updating with swith4

2) Press / switch 1 to make reverse

stitching at start display 6 flash on and off.

Every time / switch 1 is pressed, the

flashing position shifts in the right direction.

(Caution) The sewing machine does not start in

the flashing state.

3) Press switch 3 or switch 4 and

select the reverse stitching pattern.

Reverse stitching patterns and displays are as

follows.

: Reverse stitching

: Double reverse stitching

: Without reverse stitching

4) Press / switch 1 to make reverse

stitching at end display 7 flash on and off, and set

the pattern in the same way as step 3).

− 14 −

5) Press / switch 1 to make number of

stitches display 6 flash on and off, and set the number of stitches for the respective processes of the stitching.

6) Press

switch 3 or switch 4 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 processes 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 2 to determine the

contents of the setting. (Flashing stops.)

(2) Overlapped stitching pattern

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

A : Number of stitches of normal stitching setting

0 to 15 stitches

B : Number of stitches of reverse stitching setting

0 to 15 stitches

C : Number of stitches of normal stitching setting

0 to 15 stitches

D : Number of times of repetition

0 to 9 times

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

sewing is repeated as A / B / C / B / C.

Reverse stitching pattern

Overlapped stitching pattern

[Setting procedure of the overlapped stitching]

1) Hold pressing / switch1, and press

⇔

/ switch 2 to select the overlapped stitching pattern.

(Every time / switch 2 is pressed, reverse stitching pattern/overlapped stitching pattern change over alternately.)

2) The number of stitches for process A becomes in flashing state.

3) Every time / switch 1 is pressed, the flashing position shifts in the right direction and the display of the process where setting can be changed flashes on and off.

4) Press switch 3 or switch 4 to change the number of stitches.

5) When the setting of all processes has been completed, press / switch 2 to determine the contents of the setting. (Flashing stops.)

(Caution) When the overlapped stitching is

selected, the automatic operation display flashes on and off. It is not possible to release the automatic operation.

− 15 −

(3) Special setting For material end sensor function, automatic thread trimming function, one-shot automatic stitching function and thread trimming prohibition function which are displayed in the front panel, it is possible to change the set value 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 1, and press

switch 3 to move to the function setting

mode.

(Caution) Function setting No. 2 is displayed

immediately after the changeover.

2) When returning to the normal mode, press /

switch 2 and determine the contents of

the setting.

1 Material end sensor function setting (Function

setting No. 2) It is rendered effective when connecting the optional material end sensor. It is possible to change the set value with switch 3 or switch 4

0 : Material end sensor function is prohibited.

1 : Material end sensor function is effective.

When "1" is selected, material

end sensor display lights up

when the mode has returned to

the normal one.

2 Thread trimming operation after material end stop

setting (Function setting No. 3) Press / switch 1 to advance to the function setting No. 3. It is possible to change the set value with switch 3 or switch 4.

0 : Material end stop 1 : Automatic thread trimming after detection

of material end

When "1" is selected, the

automatic thread trimming display lights up when the mode is returned to the normal one.

3 Number of stitches to stop the sewing machine after

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

Press / switch 1 to advance to the

function setting No. 4.

It is possible to change the set value with switch 3 or switch 4.

Specified number of stitches : 0 to 19 stitches

− 16 −

(Caution) When the specified number of stitches

is insufficient, there is a case where the

sewing machine cannot stop within the

specified number of stitches depending on

the speed of rotation of the sewing

machine.

4 One-shot automatic stitching setting function

(Function setting No. 76) Press

/ switch 1 to advance to the

function setting No. 76. 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 material

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 one-

shot automatic stitching display lights up when the mode is returned to the normal one.

5 Thread trimming prohibition function setting

(Function setting No. 9) Thread trimming operation at normal stitching and overlapped stitching can be prohibited by selecting the thread trimming prohibition. Press / switch 1 to advance to the function setting No. 9.

It is possible to change the set value with switch 3 or switch 4.

0 : Thread trimming is effective. 1 : Thread trimming is prohibited.

When "1" is selected, the thread

trimming prohibition display lights up when the mode is returned to the normal one.

− 17 −

3. Setting for functions of SC-500

Functions can be selected and specified by means of the four setting switches and light emitting diode located

inside the front cover of the SC-500.

Specified No.

1 Switch for entering specified value changed

and updating setting No. in DOWN direction

2 Switch for entering specified value changed

and updating setting No. in UP direction

Specified value

3 Down switch (DOWN) 4 Up switch (UP)

(Caution) • 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.

How to change over to the function setting modo

1) Turn OFF the power to the unit.

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

3) Indication 5, 6 will be shown on the display. (If

the indication fails to change, re-perform the

procedures 1) and 2).

− 18 −

Specified

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.

(Caution) When switch 1 (switch 2) is held

pressing, the setting No. will return (will

advance) continuously. When the setting

No. is advanced (returned), the contents

which are before by one (after by one) will

be determined. So, be careful when

changing the contents (up/down switch is

touched).

EXAMPLE) CHANGING THE FLICKER

REDUCING FUNCTION (SETTING No. 5)

Press switch 2 five times to set the setting No. to “5”. Press switch 4 five times to change the set No. to “5” since the current set value is displayed on LED 5.

(Standard : “0”)

(Caution) Keep pressing switch 4 or switch 3,

and the setting vaue can be changed

continuously.

5) When the change has been completed, press

switch 1 or 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. Press switch 1, and screen display will

change to the contents of the setting No.

which is before by one.

3. Press 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

return to the normal operation.

After completing the operation, turn OFF the power

and turn ON the power again to return to the normal

operation.

− 19 −

4. Function setting list

No.

Item

Soft start function

Material end sensor function

Thread trimming function by material end sensor

Number of stitches for material end sensor

Flicker reducing function

Bobbin thread counting function

Unit of bobbin thread counting down

Number of rotation of reverse feed stitching

Thread trimming prohibiting function

Setting of needle bar stop position when the sewing machine stops.

Click sound of key switch mounted on PSC

Optinal switch function selection

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

Sewing 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 soft-start 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 detecting material end, the specified number of 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 material end

is not operative.

1 : After detecting material end, the specified number of 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 flickers).

0 : Flicker reducing function is not operative. 1 : Less effective 蜚 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 specified.

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 stitching at the

start and end of sewing

8 : Presser foot lifting function when pedal is neutral

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 operative.

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.

Counting function of sewing (number of completion of process)

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

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

Description

0 : Function of bobbin thread remaining amount is not operative.

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

1900

Ref.

page

ENGLISH

Function of neutral presser

lifting

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

0 : Function of neutral automatic presser lifting is not operative. 1 : Selection of function of neutral presser lifting.

0/1

* 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-8700.) However, contents of function setting are subject to change for improvement of function and performance without notice.

− 20 −

No.

Item

Function of changeover of compensating switch on the operation panel function

Function of fine adjustment of number of rotation

Thread trimming motion condition

Function of setting the holding force after stop

Function of setting the reaction force at the time of retry

Suction time of the first start of the back solenoid

Function of reverse feed stitching on the way

Number of stitches of reverse feed stitching on the way

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

Thread trimming function by reverse feed stitching on the way

Number of rotation at a low speed

Number of rotation of softstart

One-shot speed

Pedal stroke at the start of rotation

Low speed section of pedal

Starting position of lifting presser foot by pedal

Starting position of lowering presser foot

Pedal stroke 2 for starting thread trimming

Description

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 prohibited.

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 / 15 : High return force

This function sets the suction motion time of the 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

Sewing speed at the start of sewing (soft-start)(The max. value depends on the number of rotation of the sewing machine head.)

One-shot speed (The max. value depends on the number of rotation of the sewing machine head.)

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 provided.) (Pedal stroke)

Setting

range

0/1

–1.5% to

1.5%

(0.1 %)

0/1

0 to 9

0 to 15

50 to 300

(ms)

0/1

0 to 19

(Stitches)

0/1

150 to 250

(r.p.m.)

150 to MAX

(r.p.m.)

150 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)

Indication of function setting

Ref.

page

250

200

800

2500

–21

–51

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

− 21 −

No.

Item

Pedal stroke for reaching the maximum number of rotation

Compensation of neutral point of the pedal

Auto-lifter selecting function

Holding time of lifting auto-lifter

Pedal stroke 1 for starting thread trimming

Lowering time of presser foot

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

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

Compensation of 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

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

Description

Position where the sewing machin 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 presser 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 automatically 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 remaining

amount

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

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

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 specified reverse feed stitching

speed (No. 8).

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 sewing

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).

Setting

range

10 to 150

(0.1 mm)

–15 to 15

0/1

10 to 600

(second)

–60 to –10

(0.1 mm)

0 to 250 (10 ms)

–36 to 36

(10˚)

–36 to 36

(10˚)

–36 to 36

(10˚)

0/1

Indication of

function setting

150

140

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

− 22 −

Ref.

page

ENGLISH

No.

Item

Change-over speed of EBT (end back tack)

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

One-shot function up to end of material

Presser lifter solenoid initial motion suction time

Function of pedal curve selection

Description

Initial speed when starting reverse feed stitching at the sewing end

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

One-shot automatic stitching up to end of material is performed. (Used in case of without panel)

0 : Without one-shot function 1 : With one-shot function

Suction motion time of presser lifter solenoid

50 to 300 ms

Pedal curve is selected. (Improving pedal inching operation)

Number of rotations

Setting range

0 to 250

(r.p.m.)

0/1

0 to 5

0/1

50 to 300

(ms)

0/1/2

Indication of function setting

180

250

Ref.

page

Pedal stroke

Tension release 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

Manufacturer's function

Max. number of rotation setting

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 of compensating stitching when turning handwheel by hand at the time of completion of constant-dimension stitching

0 : Function of compensating stitching is effective. 1 : Function of compensating stitching is prohibited.

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

aforementioned changeover is made. (Upper stop ıî upper stop)

Do not change the set value. It is very dangerous to change the set value since it causes damage to the machine.

Max. number of rotation of the sewing machine head can be set. * Setting varies in accordance with resistance pack to be connected.

0/1

150 to MAX

(rpm)

4000

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

− 23 −

5. Detailed explanation of selection of functions

1 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)

2 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 CP-160 is connected.

3 Flicker reducing function (Function setting No. 5)

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

the more effective the function will work.

(Caution) The more effective the flicker reducing function works (the more the set value is made),

800

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

Data setting range

150 to MAX rpm <50 rpm>

Setting range

0 to 8

0 : Flicker reducing function does not work.

8 : Flickering is effectively reduced.

ENGLISH

4 Bobbin thread counting function (Function setting No. 6)

When the control panel (CP-160) 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.

5 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 (CP-160) 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.

6 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 specified.

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

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

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

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

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

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

− 24 −

7 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 : on The sound of click is effective.

8 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 : 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 with the CP-160.)

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 trimming

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/effective can

be alternately changed over. 8 : Presser foot lifting function when pedal is neutral : Every time the switch is

pressed, the function whether automatically lifting the presser foot when

the pedal is neutral or not can be selected.

(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.

9 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 CP-160 control panel. Refer to the explanation of the control panel.

1 : on Sewing counting function is operative.

0 : off Sewing counting function is inoperative.

(Indication on the CP-160 contorl panel will go out as well.)

(Caution) Setting will be invalid when the material end sensor is not attached, or CP-160 control

panel is connected.

!0 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.

1 : on Selection of function of neutral automatic presser lifting

− 25 −

!1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-160 can be changed over to needle up /

down compensating stitching or one stitch compensating stitching.

!2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.

!3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

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

!4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.

0 : Needle up / down compensating stitching

1 : One stitch compensating stitching

0 : Thread trimming motion is effective.

1 : Thread trimming motion is prohibited.

Setting range : 0 to 9

ENGLISH

!5 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.

250

Setting range : 1 to 15

1 : Less reversing force to 15 : More reversing force

Setting range : 50 to 300 ms <10 / ms>

− 26 −

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

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 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

0 to 19 stitches

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

0 : off Inoperative when the sewing machine stops.

(Reverse feed stitching 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 sewing

machine is running and stops.)

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

Function setting No. 33 Thread trimming is performed when reverse feed stitching on the way is

completed.

0 : off Without thread trimming 1 : on Thread trimming is executed.

Actions under each setting state

Application

Function setting

No.30

No.32

0 or 1

No.33

0 or 1

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 specified by the

function setting No. 31 can be performed.

When operating touch-back switch at the time of either stop of the sewing machine

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

of stitches specified 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 specified by the function setting No. 31 has been performed.

When operating touch-back switch at the time of either stop of the sewing machine

or depressing front part of the pedal, automatic thread trimming is performed

after reverse feed stitching as many as the number of stitches specified by the

function setting No. 31 has been performed.

Output function

1 Used as the normal reverse feed stitching touch-back switch. 2 Used for reinforcing seam (press sewing) of the pleats. (It works only when the sewing machine is running.) 3 Used for reinforcing seam (press sewing) of the pleats.

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

4 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.)

5 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.)

− 27 −

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

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 specified or detecting the material end.

2 500

Setting range 150 to MAX. rpm. <50 / rpm>

(Caution) 1. Setting of one-shot stitching is made by the operation panel of the CP-160, or the

function setting No. 76.

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

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

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 regradless of the set value.

Setting range 10 to 600 sec <10 / sec>

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

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.

1 Compensation of on-timing of solenoid for reverse feed stitching at the start of sewing (Function setting 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 – 36 to 36 <1 / 10˚>

Set value Compensation angle

– 36 – 360˚ – 1

– 18 – 180˚ – 0.5

00˚ 0

18 180˚ 0.5

36 360˚ 1

Number of sitches of compensation

–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.

ENGLISH

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

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

Set value Compensation angle

– 36 – 360˚ – 1

– 18 – 180˚ – 0.5

00˚ 0

18 180˚ 0.5

36 360˚ 1

Adjusting range – 36 to 36 <1 / 10˚>

Number of sitches of compensation

360˚

180˚

0˚ – 180˚ – 360˚

3 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

Set value Compensation angle

– 36 – 360˚ – 1

– 18 – 180˚ – 0.5

00˚ 0

18 180˚ 0.5

36 360˚ 1

– 36 to 36 <1 / 10˚>

Number of sitches of compensation

360˚ 180˚

0˚ – 180˚ – 360˚

− 28 −

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

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.

(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.)

@1 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 direction to

lift the needle after thread trimming is not provided.

1 : on Function of making the sewing machine rotate in the reverse direction 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.

@2 Bobbin thread remaining amount detection function (Function setting No. 57 and 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.

(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.)

@3 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 Function of holding predetermined upper/lower position of the needle

bar is ineffective.

1 : on Function of holding predetermined upper/lower position of the needle

bar is effective.

@4 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 operation.

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

1 : Auto Automatic stitching at the specified 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.

− 29 −

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.

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

Stop the sewing machine

temporarily to change direction

of sewing products.

temporary stop of the sewing

machine immediately after the

reverse feed stitching at the start

of sewing

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

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 sufficient 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

140

10 ms/Step

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

rapidly lowered.)

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

@7 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

0 to 250 ms

thread trimming.

0 to 5

Pedal neutral

rpm

Function setting No. 72

Depressing pedal

Function setting No. 71

@8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 acceralated 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.

1 : Speed is reduced.

Temporary stop

− 30 −

Sew without stopping

without a break.

@9 Retry function (Function setting No. 73)

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

0 : Normal 1 : Retry function is provided.

#0One-shot function up to material end (Function setting No. 76)

This function can perform the one-shot automatic stitching up to the end of material in combination with the

material end sensor when the operation panel is not connected.

0 : Without one-shot function

1 : With one-shot function

#1Function of pedal curve selection (Function setting No. 87)

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.

0 : Number of rotation of the sewing machine

in terms of the 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.

Number of rotation (rpm)

Pedal stroke (mm)

#2 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) 1 : One stitch compensating stitching operation (upper stop ıî upper stop) is

performed only when aforementioned changeover is made.

#3 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.

4000

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

− 31 −

6. Automatic compensation of neutral point of the pedal sensor

Whenever the pedal sensor, spring, etc. are replaced, 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 6.

At this time, the value indicated in the 7 segments

of four figures is the compensation value.

(Caution) 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

compensation value is not displayed.

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

switch again to return to the normal mode.

7. Bobbin thread remaining amount detection device, AE

When using the AE device, the optional IO p.c.b. is

necessary. Connect solenoid cord 1 attached to the side of the AE device to 2P plug (red) 2 attached to the IO p.c.b.

for use.

(Caution) Even when connecting to 14P plug from

the machine head, the device does not

work. So, be careful.

8. Connection of the pedal of standing-work machine

1) Connect the connector of PK70 1 to connector

− 32 −

2 (CN39 : 12P) of SC-500.

2) Tighten the cord of PK70 together with other cords

with cable clip band 3 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.

9. Setting of the auto lifter function

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

function makes the function of auto-lifter work.

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

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

or more has passed.

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

over well.)

momentarily 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.

1) Turn ON the power switch while pressing switch

3 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 again to return to the normal mode.

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.)

10. Connection of the material end sensor (ED)

1) Connect the connector of material end sensor (ED)

2) Tighten the cord of the material end sensor together

(Caution)

to connector 1(CN55 : 6P) of SC-500.

with other cords with cable clip band 2 attached

to the side of the box after passing it through the

cable clamp.

1. Be sure to turn OFF the power before

connecting the connector.

2. For the use of the material end sensor, refer

to the Instruction Manual attached to the

material end sensor.

− 33 −

11. Initialization of the setting data

All contents of function setting of SC-500 can be returned to the standard set values.

1) Pressing all switches 2, 3 and 4, turn ON the

power switch.

2) LED displays indication 6 with the sound “peep”,

and initialization starts.

3) The buzzer sounds after approximately one second (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 again to return to the normal mode.

(Caution)

1. When this operation is performed, the neutral compensation value of the pedal sensor becomes “0”. Accordingly, be sure to execute the operation of automatic pedal sensor neutral compensation before using the sewing machine. (Refer to page 32.)

2. Even when this operation is performed, the sewing data set by the operation panel cannot be initialized.

4. MAINTENANCE

1. Replacing the fuse

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 confirming that the sewing

machine has stopped.

2) Draw out the power cord coming from the power

plug socket after confirming that the power switch

is turned OFF. Perform the work of step 3) after

confirming that the power has been cut and it has

passed for 5 minutes or more.

− 34 −

3) Loosen setscrew 1 in front cover 2.

4) Pressing the side of front cover 2 in the direction

of the arrow, open the front cover toward you.

Note : Be sure to open / close the front cover with

your hands.

[ Replacing F1 fuse on CTL circuit board (solenoid protection fuse) ]

1) Loosen two setscrews in the front cover and open

the cover after checking that the power has been

turned OFF.

2) Replace 5A F1 fuse on CTL circuit board with a

fuse of the same capacity supplied as accessories.

3) Close the front cover as before and fix it with the

setscrews while paying attention to pinching of the

cords.

[ Replacing F1 fuse on PWR circuit board (power circuit protection fuse) ]

[ Replacing F2 fuse on PWR circuit board (regenerative resistance protection fuse) ]

1) Loosen two setscrews in the front cover and open

the cover after checking that the power has been

turned OFF.

2) Remove connectors CN30, CN32, CN33, CN36,

CN37 and CN38 and remove the setscrew attached

to the ground wire of CTL circuit board. (Connector

Nos. depend on the specifications.)

3) Draw up the front cover obliquely at the position

where the front cover is obliquely tilted by

approximately 45 degrees, and remove the cover.

Remove the control box from the motor.

4) Remove four setscrews in the bottom cover and

remove the bottom cover.

5) Replace 3.15A F1 fuse or 2A F2 fuse on PWR

circuit board with a fuse of the same capacity

supplied as accessories.

6) Fix the bottom cover as before with the setscrews,

and press the front cover to the bottom cover from

the position where the front cover is obliquely tilted

by approximately 45 degrees for assembling.

7) Attach the connectors and the ground wire which

have been removed.

8) Close the front cover as before and fix it with the

setscrews while paying attention to pinching of the

cords.

− 35 −

2. Changing procedure between 100V to 120V and 200V to 240V (Possible only for the voltage changeover type)

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.

Voltage can be changed between single phase 100 to 120V and single phase/3-phase 200 to 240V by changing over the voltage changeover switch.

(Caution) The voltage changeover switch is on the inside of the control box. When changing the setting, be

sure to open the front cover after turning OFF the power switch and a lapse of 5 minutes or more. In addition, if the changing procedure is mistaken, the control box is damaged. So, be very careful.

1) Turn OFF the power with the power switch after checking that the sewing machine has stopped.

2) Draw out the power cord from the power receptacle after checking that the power switch has been turned OFF. Then wait for 5 minutes or more.

3) Remove two screws 1 fixing the front cover and slowly open the front cover.

Voltage

changeover switch

110V

220V

Voltage

changeover switch

110V

220V

Voltage

changeover switch

220V

110V

AC input cord

WHITE

BLACK

RED

GREEN/ YELLOW

AC input cord

WHITE

BLACK

RED

GREEN/ YELLOW

AC input cord

WHITE

BLACK

RED

GREEN/ YELLOW

WHITE BLACK

RED

GREEN/ YELLOW

Fig. A

Plug side

Fig. B

Plug side

Fig. C

Plug side

4) hanging procedure of the power voltage

(Caution) When the voltage of the power changeover

switch and that of the AC input cord are wrong, the control box is damaged. Be sure to check the indication of the changeover switch and the input power voltage for use.

4)-1 When using with 3-phase 200 to 240V

¡Put a screwdriver or the like to the slit section

A of the changeover switch and push up the switch. (Indication of the voltage of switch is 220V.)

¡Connect the crimp style terminal of AC input cord

to the power plug as shown in the figure A.

4)-2 When using with single phase 200 to 240V

¡Put a screwdriver or the like to the slit section

A of the changeover switch and push up the switch. (Indication of the voltage of switch is 220V.)

¡Connect the crimp style terminal of AC input cord

to the power plug as shown in the figure B.

4)-3 When using with single phase 100 to 120V

¡ Put a screwdriver or the like to the slit section A of

the changeover switch and push down the switch. (Indication of the voltage of switch is 110V.)

¡Connect the crimp style terminal of AC input cord

to the power plug as shown in the figure C.

(Caution) Be very careful that the components are not

damaged by the top end of the screwdriver.

5) Check again that the change has been performed without fail before closing the front cover.

6) Close the front cover and tighten two screws while being very careful that the cord is not caught by the cover.

− 36 −

3. Error codes

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

Phenomenon

When tilting the sewing machine, the

buzzer beeps and the sewing

machine cannot be operated.

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.

UP position move fails to work when

all lamps on the panel light up.

Sewing machine fails to run.

Cause

When tilting the sewing machine

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.

Pedal system is set to KFL system.

Cord of auto-lifter device is not

connected to connector (CN37).

Presser foot is going up by auto-liter

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.

Motor output cord (4P) is disconnected.

Connector (CN30) of motor signal cord

is disconnected.

Corrective measure

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.

Select “FL ON” by auto-lifter function

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.

− 37 −

In 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 confirm 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 5 with the sound of “peep” and the latest error code is displayed.

3) Confirmation of the contents of previous error can be performed by operating switches 1 or 2.

(Caution) When operating switch 1, one before the

existing error code is displayed. When operating switch 2, one after the existing error code is displayed.

Error code list

No.

Description of error detected

E000

Execution of data initialization (This is not the error.)

Disconnection of synchronizer

E003

connector

Synchronizer lower position

E004

sensor failure Synchronizer upper position

E005

sensor failure

Operation panel transmission

E906

failure

Overload of motor

E007

Machine head connector

E008

failure(Resistance pack)

E811

Overvoltage

E813

Low voltage

E924

Motor driver failure

E730

Encoder failure

E731

Motor hole sensor failure

E343

Bobbin thread remaining amount sensor unit failure

Cause of occurrence expected

• When the machine head is changed.

• When the initialization operation is executed

• When position detection signal is not input from the sewing machine head synchronizer.

• When the synchronizer has broken.

• Disconnection of operation panel cord

• Operation panel has broken.

• When the machine head is locked.

• When sewing extra-heavy material 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.

• When voltage higher than guaranteed one is inputted.

• 220V has been inputted to SC-500 of 110V specifications.

• 400V is applied to the box of 220V (230V).

• When voltage lower than guaranteed one is inputted.

• 110V has been inputted to SC-500 of 220V specifications.

• 110V is applied to the box of 220V.

• Inner circuit is broken by the applied overvoltage

• Motor driver has broken.

• When the motor signal is not properly inputted.

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

Items to be checked

• Check the synchronizer connector (CN33) for loose connection and disconnection.

• Check whether the synchronizer cord has broken since the cord is caught in the machine head.

• Check the operation panel connector (CN38) for loose connection and disconnection.

• Check whether the operation panel cord has broken since the cord is caught in the machine head.

• Check whether the thread has been 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 (CN32) for loose connection and disconnection.

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

• Check whether 110V/220V changeover switch 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.

• Check whether 110V/220V changeover switch is improperly set.

• Check whether fuse or regenerative resistance is broken.

• Check the motor signal connector (CN30) for loose connection and disconnection.

• Check whether the motor signal cord has broken since the cord is caught in the machine head.

• 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, CN123) for loose connection and disconnection.

• Check whether the AE device cord has broken since the cord is caught in the machine head.

− 38 −

Contents

JUKI SC-500 Instruction Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

CONTENTS

1. Installing the motor unit

2. Installing the control box

3. Installing the belt

4. Adjusting the pulley cover

5. Installation and adjustment for the protecting pin and the belt slip-off preventing bracket

6. Connecting the cords

7. Attaching the connecting rod

1. Operation of SC-500

2. Explanation of the operation panel

3. Setting for functions of SC-500

4. Function setting list

5. Detailed explanation of selection of functions

6. Automatic compensation of neutral point of the pedal sensor

7. Bobbin thread remaining amount detection device, AE

8. Connection of the pedal of standing-work machine

9. Setting of the auto lifter function

10. Connection of the material end sensor (ED)

11. Initialization of the setting data

1. Replacing the fuse

2. Changing procedure between 100V to 120V and 200V to 240V (Possible only for the voltage changeover type)

3. Error codes