JUKI SC-910, SC-910A Engineer's Manual

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40012146

No.E358-01

ENGINEER’S MANUAL

SC-910/SC-910A

PREFACE

This Engineer’s Manual is written for the technical personnel. Operating instructions for the sewing machine are fairly detailed in the Instruction Manual intended for the maintenance personnel and operators at the apparel factory. And this manual describes the contents and individual parts which are not described in the Instruction Manual. It is advisable to use the Instruction Manuals for IP-100 and SC-910/SC-910A and the relevant Parts Lists with this Engineer’s Manual when carrying out the maintenance of this sewing machine.

CONTENTS

1. SPECIFICATION .............................................................................................1

2. OUTLINE ........................................................................................................ 1

(1) Features .........................................................................................................................1

3. CONFIGURATION.......................................................................................... 2

(1) DDL-9000/SC-910 ..........................................................................................................2

(2) DDL-8700/SC-910/M91 ..................................................................................................3

4. EXPLANATION OF CONTROL PANEL......................................................... 4

(1) List of control panels of CP-160 and IP-100 ...............................................................4

(2) Explanation of control panel CP-160 ..........................................................................6

(3) Example of application.................................................................................................7

(4) Explanation of control panel IP-100 ..........................................................................10

1) Information...........................................................................................................................................10

2) Matters that demand special attention regarding the operation panel, IP-100 ....................................19

3) Error Display ........................................................................................................................................20

4) Error code list (Error display in panel) .................................................................................................21

5) Warning list ..........................................................................................................................................23

5. CONTROL BOX (SC-910/SC-910A)............................................................ 24

(1) Connecting the cords .................................................................................................24

(2) Setting for functions...................................................................................................25

(3) Function setting list....................................................................................................27

(4) Detailed explanation of selection of functions ........................................................34

6. CHANGING PROCEDURE OF THE PEDAL TYPE..................................... 48

(1) Parts necessary for change .......................................................................................48

(2) Attaching parts............................................................................................................48

(3) Adjusting pedal depressing pressure.......................................................................48

(4) Change-over procedure of the jumper......................................................................49

(5) Automatic compensation of neutral point of the pedal sensor..............................49

7. CONNECTING PROCEDURE OF JUKI OPTIONAL DEVICE..................... 50

(1) Connection of the bobbin thread remaining amount detection device, AE ..........50

(2) Connection of the material end sensor (ED) ............................................................50

(3) Connection of the pedal of standing-work machine (PK) .......................................51

8. SETTING OF THE AUTO LIFTER FUNCTION ............................................ 51

9. EXTERNAL INPUT / OUTPUT CONNECTOR ............................................. 52

10. INITIALIZATION OF THE SETTING DATA ................................................ 53

11. CONNECTOR CONNECTION DIAGRAM.................................................. 54

(1) Solenoid for machine head ........................................................................................54

(2) Solenoid for lifting presser foot ................................................................................54

12. OPTIONAL CORD ...................................................................................... 55

(1)Relay cord A asm. for the standing sewing machine (Part No. M9701351AA0) ...55

(2)Relay cord A asm. for DC24V (Part No. M9703351AA0) ..........................................56

13. MAINTENANCE.......................................................................................... 57

(1) Replacing the fuse......................................................................................................57

(2) Power voltage changeover procedure .....................................................................58

14. Expansibility .............................................................................................. 59

15. REGARDING ERROR DISPLAY (SC-910/SC-910A)................................. 60

(1) Error code list (SC-910/SC-910A)..............................................................................62

15. BLOCK DIAGRAM ..................................................................................... 63

(1) SC-910/SC-910A block diagram ................................................................................63

(2) IP-100 operation panel block diagram......................................................................64

16. DRAWING OF TABLE ................................................................................ 65

(1) For DDL-8700 ..............................................................................................................65

(2) For DDL-9000 ..............................................................................................................66

– 1 –

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 temperature range Temperature : 0 to 40°C Temperature : 0 to 40°C Temperature : 0 to 40°C Operating humidity range Humidity : 90% or less Humidity : 90% or less Humidity : 90% or less

Power consumption 650VA 650VA 650VA

2. OUTLINE

(1)Features

1) Voltage changeover function of single phase 100 to 120V/3-phase 200 to 240V is provided. The control box with voltage changeover function can be used either for single phase 100 to 120V or for 3phase 200 to 240V by replacing the power cord up to the power switch and changing the voltage changeover connector inside the box. In addition, it can be used for single phase 200 to 240V.

2) By using IP-100, the sewing management information such as output display, etc. can be displayed.

3) The conventional JUKI optional devices can be used without any adjustment. However, when AE (bobbin thread remaining amount detection device) is used, it is necessary to separately purchase the optional circuit board.

4) By using the flash ROM for CPU, the future version-up can be adapted.

5) SC-910 control box can be used for DD (direct-drive) system machine head and drive system machine head by connecting the small-sized motor unit (M-91).

– 2 –

3. CONFIGURATION

(1)DDL-9000/SC-910

Power switch Screw for leveling table Oil inlet Operation panel and stand (Caster) Air vent Pulley cover Resistance pack Oil amount indicating Thread stand Bobbin winder window (SS, SH) PSC box (SC-910) Thread cutter retainer Max. speed control knob Thread release changeover Operation pedal screw Touch-back switch Micro lifter screw Wiper device Under cover

DDL-9000

– 3 –

(2)DDL-8700/SC-910/M-91

Power switch Operation pedal Control panel Touch-back switch Synchronizer Thread wiping (wiper) device L-shaped thread stand Screw or caster for level adjustment of table / stand PSC box (SC-910) Resistor pack Max. speed control knob Motor (M-91)

– 4 –

4. EXPLANATION OF CONTROL PANEL

(1) List of control panels of CP-160 and IP-100

CP-160

IP-100

– 5 –

No. Description

Power indication LED : Lights up when the power switch is turned ON.

Max. speed limit variable resister : Maximum speed is limited when this resister is moved in the left direction ( ).

Reverse stitching pattern switch : Used for specifying the reverse stitching pattern to be sewn.

Overlapped stitching pattern switch : Used for specifying the overlapped stitching pattern to be sewn.

Constand dimension stitching pattern switch : Used for specifying the constant dimension stitching pattern to be sewn.

Rectangular stitching pattern switch : Used for specifying the rectangular stitching pattern to be sewn.

Automatic reverse stitching at the start of sewing switch : Used for turning ON / OFF the automatic reverse stitching at the start of sewing.

Automatic reverse stitching at the end of sewing switch : Used for turning ON / OFF the automatic reverse stitching at the end of sewing.

Automatic double reverse stitching at the start of sewing switch : Used for turning ON / OFF the automatic double reverse stitching at the start of sewing.

Automatic double reverse stitching at the end of sewing switch : Used for turning ON / OFF the automatic double reverse stitching at the end of sewing.

Switches for setting the number of stitches : Used for setting the number of stitches to be sewn in processes A through D.

Material edge sensor ON / OFF switch : Rendered effective when the material edge sensor is installed on the machine. Used for selecting whether or not the material sensor is used during sewing. One-shot automatic stitching switch : Start the sewing machine with this switch, and the sewing machine will run automatically until the material edge is detected or the end of the set number of stitches is reached.

Automatic thread trimming switch : When the material edge is detected, the machine will perform thread trimming even when keeping depressing the front part of the pedal.

Thread trimming prohibition switch : Used for prohibiting thread trimming at any occasion.

Bobbin thread counter : Indicates the amount of bobbin thread while counting it by subtracting from the set value. When the bobbin thread remaining amount detecting device is installed on the machine, the counter

indicates the number of times of detecting. Bobbin counter reset switch : Used for returning the value shown on the bobbin thread counter to

the initial value. Bobbin thread amount setting switch : Used for setting the amount of bobbin thread.

No. of pcs. counter : The indication shown on the counter increases while counting up the number of finished pieces of garment every time the machine performs thread trimming.

Teaching switch : Used for setting the number of stitches to a value which has been actually sewn.

Needle up/down compensating switch : Used when performing needle up / down compensating stitching.

Re-sewing switch : If the bobbin thread runs out before the completion of the operation steps of a programmed stitching pattern, this switch is used for re-starting stitching from the position where the

stitching has been interrupted after replacing the bobbin. Screen changeover switch : This is the switch to change over the screen.

Reset switch : This is the switch to make the value of bobbin thread counter or sewing counter the set value.

Information switch : This is the switch to perform various function settings.

Counter value setting switch : This is the switch to set the value of bobbin thread counter or No. of pcs. counter.

Smart media cover : This is the cover for smart media inserting opening.

Smart media slot (Smart media inserting opening) : To set smart media, insert smart media into smart media slot and push it until it is almost hidden.

Smart media : ( Optional : Part No.HX005750000 )

CP160

IP-

100

– 6 –

(2) Explanation of control panel CP-160

1) Reverse stitching pattern

When the sewing machine performs the free stitching operation, the machine performs the reverse stitching operation at the start and end of sewing. The reverse stitching operation can set the ON and OFF settings. Furthermore, single and double reverse stitching patterns can be selected. Setting of number of stitches or other settings can be performed by operating the control panel. A, B, C and D = 0 to 19 stitches

2) Overlapped stitching pattern

The sewing machine repeats the normal stitching and reverse stitching by the predetermined time, and performs the line bartacking. Then, the machine makes the thread trimmer actuate and stop to complete the overlapped stitching procedure. Change of the number of stitches or the number of times of repetition can be performed by operating the control panel. A, B and C = 0 to 19 stitches D = 0 to 9 times

3) Constant-dimension stitching pattern

The free stitching process in the reverse stitching pattern becomes the set value of the number of stitches. The sewing machine will automatically stop (automatically perform thread trimming if the automatic thread trimming is selected.) after the machine finishes the predetermined number of stitches in the process of CD. If the automatic thread trimming is not selected, operate the touch-back switch after the machine has automatically stopped. Then, the machine runs at a low speed (stitch compensation operation). Also, if the pedal is returned to its neutral position and depressed its front part again, the sewing can be continued regardless of the setting of number of stitches. Setting of number of stitches or selection of automatic thread trimming can be performed by operating the control panel. A and B = 0 to 19 stitches CD = 0 to 500 stitches

4) Rectangular stitching pattern

There are 4 operation steps in the process of constant-dimension stitching pattern. At each operation step the sewing machine automatically stops after sewing the predetermined number of stitches. At this time, if the touch-back switch is operated, the sewing machine runs at a low speed (stitch compensation operation). Also, in case of the last operation step, if the pedal is returned to its neutral position and depressed its front part again, the sewing can be continued regardless of the setting of number of stitches. However, if the automatic thread trimming is set, the machine will perform thread trimming. Setting of number of stitches or selection of automatic thread trimming can be performed by operating the control panel. A and B = 0 to 19 stitches C and D = 0 to 99 stitches

– 7 –

(3) Example of application

1) When the CP-160 is used together with the material end sensor (ED : optional), it can be used as a small edge-controller.

(Method) Adjust the position to mark of the CP-160, turn ON material end sensor ON/OFF switch of

the CP-160, and turn ON mark of the automatic one-shot stitching.

Caution) Number of rotations of the automatic one-shot stitchig can be changed by the function setting

(No. 38).

– 8 –

2) Label attaching is performed by the automatic one-shot stitching with the CP-160

(Method) Select mark on the CP-160, and turn ON mark of the automatic one-shot stitching.

Explanation) Number of stitches at the section CD can be set up to 500 stitches. If the stitch length is 2 mm, it is

possible to sew approximately 1,000 mm (1 m).

This function can perform the automatic one-shot stitching without using the material end sensor

(ED : optional). Therefore, the sewing machine performs the sewing to the last according to the sewing pattern even if the label is not located at the end of material when the pedal is depressed once.

Label

– 9 –

Condition Machine head of DDL-8700H (for thick materials)

Stitch length 4 mm

Number of stitches 4 stitches

ITEM No. 64 “0” rpm

Standard

Condition Machine head of DDL-8700H (for thick materials)

Stitch length 4 mm

Number of stitches 4 stitches

ITEM No. 64 170rpm

3) Seam joining of the reverse feed stitching at the end of sewing (For thick materials)

Especially some sewing machine heads for thick materials are likely to fail joining the seam at the section of the following figure even if the timing of reverse feed stitching at the end of sewing is compensated.

1 At the timing to move to the reverse feed stitching action,

the rotating speed at the section where the sewing machine is rotated at a low speed can be changed. SC-910 function setting No. 64 (0 to 250 rpm changeable : 200 rpm was fixed in the past.)

Example) Use for reference.

Section of EBT

Section of low speed

Time

Speed

Stitch lenth becomes small.

Stitch length slips off.

– 10 –

(4)Explanation of control panel IP-100

1) Information

Setting and checking of various data can be performed with the information. For the information, there are the operator level and the maintenance personnel level.

[Operator level]

1) Turn ON the power.

2) Press switch to display the information screen.

Information screen (operator level)

1. Sewing management information

For the sewing management information, there are the maintenance management function, production control function and working measurement function.

[Maintenance management function]

: Sewing management

information

1) Press to display the maintenance function screen.

– 11 –

Information screen (Maintenance personnel level)

: Ver display

: Function setting

: Sewing management

information

: Communication mode : Smart media format

[Maintenance personnel level]

1) Turn ON the power. When the needle bar is not in the UP position, turn the handwheel to bring the needle bar to its UP position.

2) Press switch for approximately three seconds to display the information screen.

3) Press switches , , , and corresponding to the various functions.

2. Ver display

Software version of each CPU is displayed. Press switch in the information screen (maintenance personnel level).

Ver display screen

Explanation of display

Others

Level

Version

Revision Kind of CPU

01- 01 01 00

RVL

Panel software

Servo motor software

– 12 –

3. Sewing management information

For the sewing management information, there are the operator level and the maintenance personnel level. [Operator level] Press switch in the information screen. [Maintenance personnel level] Press switch for approximately three seconds in the information screen. Pictograph on the left end of the sewing management information is shown in reverse video.

Sewing management information screen (Maintenance personnel level)

4. Operation status screen

The total record of the sewing machine is displayed.

: Total operation time of the sewing machine (hour)

: Total number of times of thread trimming of the sewing machine (number of times)

: Total current-carrying time of the sewing machine (hour)

: Total number of stitches of the sewing machine (1,000 stitches)

: Maintenance function : Production control function : Operation measurement

function : Operation status : Error record

– 13 –

5. Error record display

Press error record display switch in the sewing management information screen (maintenance personnel level).

Error record screen

When switch or is pressed, the error record scrolls up or down.

Explanation of display

Error record of approximately 100 cases (depending on the memory capacity) can be stored in memory in the order of the latest.

6. Communication mode

Uploading and downloading of various data with the sewing machine server utility (hereinafter called SU- 1) or the smart media can be performed in the communication mode. For the communication mode, there are the operator level and the maintenance personnel level. The kind of data which can be handled with the operator level is different from that with the maintenance personnel level.

Kind of data Operation level Download Upload Extension Remarks

of file

Maintenance MSP All sewing machine personnel data

Panel Maintenance NG PRG

personnel

Main Servo motor

Each program data

Communication function table

: Panel : Smart media : SU-1

Record No.

Error No.

ime occurred (Unit : time)

– 14 –

Operating procedure [Maintenance personnel level]

Press communication mode switch for approximately three seconds in the information screen. ictograph on the left end of the communication screen is shown in reverse video.

Communication screen (Maintenance personnel level)

7. Communication setting

1 Data selection

Press data selection switch in the communication screen.

Data selection screen

Select the data to perform communication, and press set key switch .

2 Communication method selection

Press communication method selection switch in the communication screen.

Communication method selection screen

Kind of selected data

Data selection

Data communication source

Data communication destination

Communication method selection

Start of communication

– 15 –

Select the method to perform communication and press set key switch . Reference : Communication method cannot be selected by downloading of program.

3 Data communication source 4 Data communication destination

Set data communication source and data communication destination in the ten key screen, or "+" or "– " key. (Ten key input, or "+" or "-" key input is changed according to the kind of data.)

5 Start of communication

After all settings have been completed, press communication start key switch to start communication. When the screen returns to the communication setting screen after display of the during communication screen, communication is completed.

(Caution) Never turn OFF the power during communication.

Motion in case of OFF cannot be guaranteed.

– 16 –

8. All sewing machine data

1. Data such as sewing setting data, adjustment data, etc. which are memorized in the sewing machine can be stored in one package.

2. It is possible to download the all sewing machine data to the other sewing machines to make the same setting.

Communication screen (Download of all sewing machine data)

Reference : When downloading the all sewing machine data, it is necessary that the file and the Ver of the sewing

machine have to agree with each other. An error occurs when the file of different Ver is downloaded.

(Caution) It is not possible to store and copy the function setting of the servo motor.

Folder structure of all sewing machine data (* .MSP) file in the smart media

Upload : Uploading to the smart media is written in the folder of "SC910". In case there is no folder, the folder of "SC910" is automatically created. Download : Downloading from the smart media is read from the folder of "SC910". Store the copy from other media or the like in the folder of "SC910". 1 Create folder "SC910" in the smart media.

(It is not necessary to create the folder when it already exists.)

2 Copy the file (extension MSP).

Smart media

PROG

SC910

SC00001.EPD SC00001. MSP

– 17 –

9. Program data

1. When the change of software occurs in the future due to Ver-up or the like, rewriting of the program can be performed.Rewriting of the program is performed with each CPU.

Communication screen (Download of IP-100 program data)

Folder structure of program (* .PRG) file in the smart media

Download : Downloading from the smart media is read from the folder of "PROG\SC910". Store the copy from other media or the like in the folder of "PROG\SC910".

1 Create folder "PROG" in the smart media. 2 Create folder "SC910" in the PROG folder.

(It is not necessary to create the folder when it already exists.)

3 Copy the program file (extension PRG).

Smart media

PROG

SC910

IP010101.PRG MT010101.PRG

– 18 –

10. Smart media format

Perform formating of the smart media. The media formated with the personal computer or the like may not be used. When using the media with IP-100, be sure to perform formating with IP-100.

Press smart media format switch in the information screen (maintenance personnel level)

Smart media format confirmation screen

: Formating is performed.

Confirm again whether formating can be performed before pressing the switch.

: The screen returns to the information screen.

(Caution)When formating is performed, all data stored in the smart media are deleted. Take the backup

of necessary data beforehand.

– 19 –

2) Matters that demand special attention regarding the operation panel, IP-100

1. Kind of IP-100

For the operation panel, IP-100, there are several kinds of types in accordance with the specifications. Types that can be used for SC-910 are TYPE-B and TYPE-C. The product is TYPE B0A or TYPE C0A which is indicated on the name plate seal located in the rear of the panel case. Brackets for installing panel for both types are different from each other. There is the jumper wire W1 (side of RVR1 variable resistor) on the circuit board. Set the W1 setting to 2-3 for both types.

Type name plate seal Setting of W1

TYPE B0A 2-3 pin setting (lower side) TYPE C0A 2-3 pin setting (lower side)

(Caution) When setting is wrong, LCD screen display is not properly performed.

2. Matters that demand special attention when disassembling the operation panel

Operation panel, IP-100 is constructed with precision components. Leave the action such as disassembling the panel case or the like to our service department since injury by electric shock or failure of panel will be caused. If the force more than expected is applied when disassembling the panel case, it may be damaged since it is made of the plastic molding. Especially when performing disassembling (opening/closing) the front panel and the rear panel in the state that the smart media cover attached to the rear case is closed, the small-sized switch mounted on the inside of the printed circuit board interferes with the smart media cover and may be damaged. So, be careful. It is necessary to assemble all screws used in the operation panel with tightening torque of 0.56Ncm. (Excluding screws to fix it on the machine head and to fix the earth wire.)

3. Prohibition of the change of DIP switch setting

Do not perform the changeover of DIP switches since the guarantee of control program and stored data cannot be performed. It is not necessary to operate these switches since they are all changeover switches for the production by the manufacturers.

(Caution) The 4-string DIP switches are not exposed unless the operation panel case is disassembled.

1 2

3 TYPE B0A, C0A

– 20 –

3) Error Display

1. Error display

* Error is informed by means of the panel display, machine head mirror LED blink and control box

buzzer.

Two different kinds of screens of the panel display screen appear due to the difference of the procedures.

1. Error screen disappears when the operator removes the cause. Example) The needle position is not in its UP position. Make the needle position UP by turning the handwheel by hand.

2. Remove the cause of error after turning OFF the power.

– 21 –

4) Error code list (Error display in panel)

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.

— UP position detection error when turn- 1.When needle position is not UP position at the 1. Set to UP position by turning handwheel by hand.

ing ON the power time of turning ON the power. 2. Connect synchronizer connector.

— Smart media cover open 1. Lid of smart media slot is open. Close the lid.

E000 EEPROM initialization 1. EEPROM initialization is executed. —

2. Resistor pack is replaced.

E003 Disconnection of synchronizer connector 1. When position detection signal is not inputted from 1. Check the synchronizer connector (CN30) for loose connection and disconnection.

the sewing machine head synchronizer.2.Check whether the synchronizer cord has broken since the cord is caught in the

2. When the synchronizer has broken. machine head or the like.

E005 Synchronizer upper position sensor failure E007 Overload of motor 1. When the machine head is locked. 1. Check whether the thread has been entangled in the motor pulley.

2. When sewing extra-heavy material beyond the 2. Check the motor output connector (4P) for loose connection and disconnection. guarantee of the machine head.

3. When the motor does not run.

E008 Undefined machine head When the machine head connector is not properly read. Check the machine head connector (CN31) for loose connection and disconnection. E011 Smart media not inserted Smart media is not inserted. Return after reset operation. E012 Read error Data read from smart media is not possible. Return after reset operation. E013 Write error Data write to smart media is not possible. Return after reset operation. E014 Write protect Smart media is in write prohibition state. Return after reset operation. E015 Format error Formatting cannot be performed. Return after reset operation. E016 External media capacity over Media capacity of smart media is short. Return after reset operation. E019 File size over File is too big. Return after reset operation. E021 Access error Abnormality of access of file Return after reset operation. E302 Fall detection switch failure When fall detection switch is inputted in the state that 1. Check whether the machine head is tilted without turning OFF the power switch (sewing

the power is turned ON. machine operation is prohibited for safety sake).

2. Check whether the fall detection switch cord is caught in the sewing machine or the like and has broken.

E343 Bobbin thread remaining amount sensor 1. The device is not connected when bobbin thread 1. Check whether the device is connected.

unit trouble remaining detection function is ON. 2. Check whether bobbin thread remaining amount detection connector (CN58) is loosened

2. Failure of position sensor of the device or disconnected.

3. Failure of position solenoid of the device

E730 Motor encoder trouble (AB phase) When the motor signal is not properly inputted. 1. Check the motor signal connector (CN38 and CN39) for loose connection and

disconnection.

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

E733 Reverse rotation of main shaft motor State that the sewing machine is rotating in the Turn OFF the power.

different direction from the normal rotating direction at 500 rpm or more continues 40 times or more while motor is running (excluding holding of needle position).

No. Description of error detected Cause Item to be checked or corrective measure

E004 Synchronizer upper position sensor failure

E731 Motor sensor error (UVW phase)

– 22 –

E810 Solenoid short-circuit When the short-circuited solenoid is desired to be driven. Check whether the solenoid is short-circuited. E811 Overvoltage 1. When voltage upper than guaranteed one is 1. Check whether the applied power voltage is higher than the rated voltage + (plus)

inputted. 10% or more.

2. When 200V is inputted for 100V setting. 2. Check whether 100V/200V changeover connector is set by mistake. In the above cases, POWER circuit board has broken.

E813 Low voltage 1. When voltage lower than guaranteed one is 1. Check whether the votage is lower than the rated voltagw - (minus) 10% or less.

inputted. 2. Check whether 100V/200V changeover connector is set by mistake.

2. When 100V is inputted for 200V setting.

E920 GA failure Abnormality of gate array When return is not performed even after turning OFF the power, the possibility of gate

array breakage is large. E922 Main shaft motor control is impossible. When main shaft motor cannot be controlled. Turn OFF the power. E924 Motor driver failure Motor driver has broken. Turn OFF the power.

E940 Bird's nest sequence error Bird's nest prevention sequence is not completed. Turn OFF the power. E941 GA failure Abnormality of gate array When return is not performed even after turning OFF the power, the possibility of gate

array breakage is large. E942 EEPROM failure Writing is not completed even after the lapse of 10 Turn OFF the power.

[ms] or more.

E944 Left needle is uncontrollable. In case of LH sewing machine with organized split Check whether needle control connectors (CN55 and CN56) are loosened or discon

needle bar mechanism nected.

1. Same error is not detected yet.

2. Home position signal is ON when left needle is locked.

3. Home position signal is OFF when left needle is released.

E945 Right needle is uncontrollable. In case of LH sewing machine with organized split Check whether needle control connectors (CN55 and CN56) are loosened or discon

needle bar mechanism nected.

1. Same error is not detected yet.

2. Home position signal is ON when right needle is locked.

3. Home position signal is OFF when right needle is released.

No. Description of error detected Cause Item to be checked or corrective measure

– 23 –

5) Warning list

No. Contents and display of warning Corrective measure Remarks

A201 Replacement of oil warning • Press to close warning screen, and Refer to

perform replacement of needle. Then clear Instruction Manual the value in the clear screen. 6-15-(2) Sewing

•Press to clear the value, and perform management replacement of needle. information.

A202 Cleaning warning • Press to close warning screen, and Refer to

perform cleaning. Then clear the value in the Instruction Manual clear screen. 6-15-(2) Sewing

•Press to clear the value, and perform management cleaning. information.

A203 Replacement of needle warning • Press to close warning screen, and Refer to

perform replacement of oil. Then clear the Instruction Manual value in the clear screen. 6-15-(2) Sewing

•Press to clear the value, and perform management replacement of oil. information.

– 24 –

5. CONTROL BOX (SC-910/SC-910A)

(1)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 on the front face of SC-910. Connect the connectors coming from the machine head to the corresponding places so as to fit the devices mounted on the machine head.

Optional unit A IO circuit board A (asm.)

CN30 Synchronizer : it detects the needle bar position. CN35 CP-160 panel : V arious kinds of programmed sew-

ing can be executed.

(Refer to the Instruction Manual for each CN33 Not used 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 op-

eration 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 Machine head solenid : Thread trimming, reverse-

stitching solenoid, touch-back switch, etc. CN47 Optional circuit board connection connector : Re-

quired when using JUKI standard bobbin thread

remaining amount detection sensor, etc.

CN38, CN39

Motor signal connector

CN32 Standing machine pedal : JUKI standard PK-70,

etc. Sewing machine can be controlled with the external signal.

CN34 IP-100 panel (LCD panel) : Various kinds of pro-

grammed sewing can be executed. CN45 Material end detection sensor ED-4, 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 detec-

tion 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

– 25 –

Specified No.

Specified value

(2) Setting for functions

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-910/SC-910A.

(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.

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 modo

1) Turn OFF the power to the unit.

2) Open the front cover.

3) Pressing switch , turn ON the power to the unit.

4) Indication will be shown on the display. (If the indication fails to change, re-perform the procedures 1) to 3).

Switch for entering specified value changed and updating setting No. in UP direction Switch for entering specified value changed and updating setting No. in DOWN direction Up switch (UP) Down switch (DOWN)

– 26 –

5) When you want to advance the setting No., press switch to advance the setting No. When you want to return the setting No., press switch to return the setting No.

(Caution) Keep pressing switch or switch ,

and the setting No. will advance (return) continuously. When the setting No. is advanced (returned), the contents which are before by one (after by one) will be etemined. So be careful when changing the Setting No.

EXAMPLE) CHANGING THE FLICKER REDUC-

ING FUNCTION (SETTING No. 5)

Press switch four times to set the setting No. to “5”. Press switch five times to change the set No. to “5” since the current set value is displayed on LED . (Standard : “0”)

(Caution) Keep pressing switch or switch ,

and the setting vaue can be changed continuously.

6) When the change has been completed, press switch or 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 , and screen display will change to the contents of next setting No.

3. Press switch , and screen display will change to the contents of previous setting No.

After completing the operation, turn OFF the power, and return the front cover to the original position. The machine returns to the normal operation by turning ON the power again.

Setting No.

– 27 –

(3)Function setting list

No. Item Description Setting range

1 Soft start The number of stitches to be sewn at a low speed when the soft-start 0 to 9 34

function function is used at the start of sewing. (Stitches)

0 : Soft-start function is not operative.

2 Material end Material end sensor function (used in case of without panel). 0/1 34

sensor 0 : Material end detection function is not operative function 1 : After detecting material end, the specified number of stitches (No. 4) will

be sewn, and the sewing machine will stop.

3 Thread trimming Thread trimming function by material end sensor (used in case of without panel). 0/1 34

function by 0 : Automatic thread trimming function after detection of material end is not material end operative. sensor 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.

4 Number of Number of stitches for material end sensor (used in case of without panel). 0 to 19 34

stitches for Number of stitches from detection of material end to stop of the sewing (Stitches) material end machine. sensor

5 Flicker reducing Flicker reducing function (If the hand lamp flickers). 0 to 8 34

function 0 : Flicker reducing function is not operative.

1 : Less effective . 8 : Highly effective

6 Bobbin thread Bobbin thread counting function 0/1 34

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

7 Unit of bobbin Unit of bobbin thread counting down 0 to 2

thread counting 0 : Count/10 stitches down 1 : Count/15 stitches

2 : Count/20 stitches

8 Number of Sewing speed of reverse feed stitching 180 to 3000

rotation of (r.p.m) reverse feed stitching

9 Thread Thread trimming prohibiting function (used in case of without panel). 0/1 34

trimming 0 :Thread trimming prohibiting function is not operative. prohibiting 1 : Thread trimming is prohibited. function (Output of solenoid is prohibited. : Thread trimmer and wiper)

10 Setting of Position of needle bar is specified when the sewing machine stops. 0/1 34

needle bar 0 : Predetermined lowest position stop position 1 : Predetermined highest position when the sewing machine stops.

11 Click sound of Click sound of key switch mounted on PSC is specified. 0/1 34

key switch 0 : Click is not operative. mounted on 1 : Click is operative. PSC

12 Optinal switch Switching of function of optional switch. 0 to 8 35

function 0 : No function selection 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 : Neutral presser lifting changeover function

13 Function of Function of prohibiting start of the sewing machine by bobbin thread counting 0 to 2 43

prohibiting 0 : When counting is out (-1 or less) Function of prohibiting start of the start of the sewing machine is not operative. sewing 1 : When counting is out (-1 or less) Function of prohibiting start of the machine by sewing machine is operative. bobbin thread 2 : When counting is out (-1 or less) Function of forcibly prohibiting start of counter the sewing machine is operative.

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

0/1

counter 0 : Sewing counter function is not operative.

1 : Sewing counter function is operative.

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

0 to 19 of detection of 0 : Function of bobbin thread remaining amount is not operative. run-out of 1 to 19 : Number of times during which the signal is not made even if run-out bobbin thread of bobbin thread remaining amount is detected. remaining amount

1900

Indication of Ref.

function setting page

– 28 –

No. Item Description Setting range

18 Bird’s nest This function is effective in combination with the machine head with bird's nest 0 to 2 35

prevention prevention function (optional unit A is necessary). function 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 tension release)

19 Needle thread This function is effective in combination with the machine head with bird's nest 0 to 1 35

release prevention function (optional unit A is necessary). function at the 0 : Needle thread release function is not operative. sewing start 1 : Needle thread release function is operative.

20 Number of This function is effective in combination with the machine head with bird's nest 0 : Function 35

condensation prevention function (optional unit A is necessary). OFF stitches 0 : Condensation function is not operative. 1 to 9 stitches

1 to 9 : Number of condensation stitches

21 Function of Function of lifting presser foot when the pedal is in neutral position. 0/1 35

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

22 Function of Function of needle up/down compensating switch on the operation panel can 0/1 35

changeover of be changed. compensating 0 : Needle up/down compensation switch on the 1 : One stitch compensation operation panel function

24 Function of fine Number of rotation can be compensated. -1.5% to 1.5% 43

adjustment of Be sure to normally use this function with "0". (0.1%) number of rotation

25 Thread trimming This function sets the thread trimming motion after DOWN position has been 0/1 36

motion condition 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.

26 Function of This function prevents the sewing machine from the reverse rotation after it 0 to 9 36

setting the has stopped. holding force 0 : Initial value after stop 1 : Less effective -> 9 : Highly effective

27 Function of This function sets the magnitude of return force of the needle bar before the 1 to 100 36

setting the retry motion. reaction force 1 : Less return force -> 100 : High return force at the time of retry

28 Number of This function is effective in combination with the machine head with bird's nest 0 to 30 36

stitches of prevention function (optional unit A is necessary). (Stitches) needle thread This function sets the number of stitches grasping thread at the sewing start. release 0 to 30 stitches

29 Suction time of This function sets the suction motion time of the back-tack solenoid. 50 to 300 36

the first start of 50 ms to 300 ms (ms) the back solenoid

30 Function of Function of reverse feed stitching on the way 0/1 37

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

31 Number of Number of stitches of reverse feed stitching on the way. 0 to 19 37

stitches of (Stitches) reverse feed stitching on the way

32 Effective condition Effective condition of reverse feed stitching on the way 0/1 37

of reverse feed 0 : Function is not operative when the sewing machine stops. stitching on the 1 : Function is operative when the sewing machine stops. way when the sewing machine is stopping.

33 Thread trimming Thread trimming function by reverse feed stitching on the way 0/1 37

function by 0 : Automatic thread trimming function after completion of reverse feed reverse feed stitching on the way is not operative. stitching on 1 : Automatic thread trimming after completion of reverse feed stitching on the way the way is performed.

35 Number of Lowest speed by pedal 20 to 400 43

rotation at a (r.p.m.) low speed

36 Number of Thread trimming speed 20 to 250

rotation of (Caution) Do not change the set value. (r.p.m.) thread When it is changed, the sewing machine is apt to be broken. trimming

29 250

35 200

Indication of Ref.

function setting page

36 210

– 29 –

37 Number of Sewing speed at the start of sewing (soft-start) 150 to 5500 34

rotation of (r.p.m.) soft-start

38 One-shot One-shot speed (The max. value depends on the number of rotation of the 200 to MAX 37

speed sewing machine head.) (r.p.m.)

39 Pedal stroke at Position where the sewing machine starts rotating from pedal neutral position 1.0 to 5.0 38

the start of (Pedal stroke) (0.1mm) rotation

40 Low speed Position where the sewing machine starts accelerating from pedal neutral 1.0 to 10.0 38

section of position (0.1mm) pedal (Pedal stroke)

41 Starting position Position where the cloth presser starts lifting from pedal neutral position

-6.0 to 5.0 38 of lifting presser (Pedal stroke) (0.1mm) foot by pedal

42 Starting position Starting position of lowering presser foot 0.8 to 5.0 38

of lowering Stroke from the neutral position (0.1mm) presser foot

43 Pedal stroke 2 Position 2 where the thread trimming starts from pedal neutral position (When

-6.0 to -1.0 38 for starting the function of lifting presser foot by pedal is provided.) (Pedal stroke) (0.1mm) thread trimming

44 Pedal stroke for Position where the sewing machin reaches its highest sewing speed from 1.0 to 15.0 39

reaching the pedal neutral position (Pedal stroke) (0.1mm) maximum number of rotation

45 Compensation Compensation value of the pedal sensor -15 to 15 39

of neutral point of the pedal

46 Auto-lifter Auto-lifter selection 0/1

selecting 0 : Solenoid drive system function 1 : Pneumatic drive system

47 Holding time of Limitation time of waiting for lifting solenoid type auto-lifter device 10 to 600 39

lifting auto-lifter (second)

48 Pedal stroke 1 Position where thread trimming starts from pedal neutral position (Standard -6.0 to -1.0 39

for starting pedal) (Pedal stroke) (0.1mm) thread trimming

49 Lowering time Lowering time of presser foot after the pedal has been depressed. 0 to 250 41

of presser foot (Start of rotation of the sewing machine is delayed during this time.) (10ms)

51 Compensation Compensation of starting the solenoid for reverse feed stitching when reverse -36 to 36 39

of solenoid-on feed stitching at the start of sewing is performed. (10°) timing of reverse feed stitching at the start of sewing

52 Compensation Compensation of releasing the solenoid for reverse feed stitching when reverse -36 to 36 39

of solenoid-off feed stitching at the start of sewing is performed. (10°) timing of reverse feed stitching at the start of sewing

53 Compensation Compensation of releasing the solenoid for reverse feed stitching when reverse -36 to 36 40

of solenoid-off feed stitching at the end of sewing is performed. (10°) timing of reverse feed stitching at the end of sewing

55 Foot lift after Function of lifting presser foot at the time of (after) thread trimming 0/1 40

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

No. Item Description Setting range

37 800

2500

-21

-51

44 150

-35

49 140

-6

-4

-9

Indication of Ref.

function setting page

– 30 –

No. Item Description Setting range

56 Reverse Function of reverse revolution to lift the needle at the time of (after) thread 0/1 40

revolution to lift trimming the needle after 0 : Not provided with the function of reverse revolution to lift the needle thread trimming after thread trimming

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

thread trimming

57 Bobbin thread Function of detecting bobbin thread remaining amount at the time of (after 0/1 40

remaining thread trimming amount 0 : Not provided with the function of detecting bobbin thread remaining detection amount function 1 : Provided with the function of detecting bobbin thread remaining amount

58 Function of Function of holding predetermined upper/lower position of the needle bar 0/1 40

holding 0 : Not provided with the function of holding predetermined upper/lower predetermined position of the needle bar upper/lower 1 : Provided with the function of holding predetermined upper/lower position position of the of the needle bar needle bar

59 Function of This function can specify the sewing speed of reverse feed stitching at the start 0/1 40

Auto/Manual of sewing. change-over of 0 : The speed will depend on the manual operation by pedal, etc. reverse feed 1 : The speed will depend on the specified reverse feed stitching speed stitching at the (No. 8). start of sewing

60 Function of stop Function at the time of completion of reverse feed stitching at the start of sewing 0/1 41

immediately 0 : Not provided with the function of temporary stop of the sewing machine after reverse at the time of completion of reverse feed stitching at the start of sewing feed stitching at 1 : Provided with the function of temporary stop of the sewing machine at the start of the time of completion of reverse feed stitching at the start of sewing. sewing

Function of starting

Function of starting prohibition of the sewing machine by detection of bobbin 0/1 40 prohibition of thread remaining amount the sewing 0 : This function does not stop the sewing machine when counting is out tmachine by (-1 or less). detection of 1 : This function stops the sewing machine when counting is out (-1 or less). bobbin thread remaining amount

64 Change-over Initial speed when starting condensation stitch or EBT 0 to 250 43

speed of (rpm) condensation stitch or EBT (end back tack)

65 On-timing of Starting (compensation) timing of solenoid for compensation stitch : -1 -36 to 0 35

solenoid for Compensation value of starting the solenoid when condensation stitch is (10°) condensation performed by 1 stitch. stitch (when condensation stitch is performed by 1 stitch.)

66 On-timing of Starting (compensation) timing of solenoid for condensation stitch : -2 -36 to 0 35

solenoid for Compensation value of starting the solenoid when condensation stitch is (10°) condensation performed by 2 stitches. stitch (when condensation stitch is performed by 2 stitches.)

67 Number of Not used. 0 to 9

times of (Stitches) drives of airpurge

68 Start-up Not used. 0 to 35

position of (10°) airpurge

69 Pause Not used. 0 to 35

position of (10°) airpurge

70 Function of Presser foot is slowly lowered. 0/1 41

soft-down of 0 : Presser foot is rapidly lowered. presser foot 1 : Presser foot is slowly lowered.

71 Function of Speed limitation is performed at the time of re-acceleration on the way of 0 to 5 41

limitation of re- reducing speed of the sewing machine. acceleration It is effective when operating inching sewing. from reduction of speed

64 180

-15

Indication of Ref.

function setting page

– 31 –

72 Function of Speed limitation is performed at the time of start-up of the sewing machine 0 to 5 41

limitation of (excluding the start of sewing). acceleration at It is effective when operating inching sewing. the start of rotation

73 Retry function This function is used when needle cannot pierce materials . 0/1 41

0 : Normal 1 : Retry function is provided.

75 Rotating Normal rotating direction of motor 0/1 43

direction of 0 : Clockwise motor 1 : Counterclockwise

76 Function to Starting curve of the sewing machine is selected. 0/1 42

select the start- 0 : Normal curve up speed of the 1 : More sharp curve sewing machine

87 Function of Pedal curve is selected. (Improving pedal inching operation) 0/1/2 42

pedal curve selection

89 Tension Not used 0/1 36

release function

91 Function of Function of compensating stitching when turning handwheel by hand at the 0/1 43

prohibiting time of completion of constant-dimension stitching compensation 0 : Function of compensating stitching is effective. operation after 1 : Function of compensating stitching is prohibited. turning handwheel by hand

92 Function of Function to reduce speed at the time of completion of reverse feed stitching 0/1 41

reducing speed at the start of sewing. stitching at the 0 : Speed is not reduced. start of sewing 1 : Speed is reduced.

93 Function added Operation of needle up/down compensating switch is changed after turning 0/1 42

to needle up/ ON the power or thread trimming. down compen- 0 : Normal (needle up/down compensating stitching only) sating switch 1 : One stitch compensating stitching is performed only when aforementioned

changeover is made. (Upper stop / upper stop)

Continuous In IP-100 program functions, a function that does not stop the sewing machine 0/1 42 stitching + one- by combining continuous stitching with one-shot stitching when the step is shot stitching changed. non-stop function 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.

96 Max. number of Max. number of rotation of the sewing machine head can be set. 50 to MAX 42

rotation setting * Setting varies in accordance with resistance pack to be connected. (r.p.m.)

100 Number of Not used 0 to 2 36

stitches of tension release motion at the sewing start

101 Sewing This function selects the input destination of the sewing counter. 0/1 42

counter input 0 : Every time thread trimming is performed, the counter automatically function counts up.

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

104 PWM when Not used. (Do not change the set value.) 30 to 200

start of rotation is locked

105 Touch back When the IP-100 is connected and a corner pattern is selected, this function 0/1 44

switch 1 needle provides the capability of stitch compensation during in-cornersewing with compensation the aid of a touch back switch. function 0: OFF Compensation sewing disabled with the touch back switch

1: ON Compensation sewing enabled with the touch back switch

* Setting is possible only if LH-4168 or LH-4188 is selected for the machine

head.

104

No. Item Description Setting range

4000

100

101

Indication of Ref.

function setting page

Number of rotations

Pedal stroke

105

– 32 –

No. Item Description Setting range

106 Presser lifter When the IP-100 is connected and a corner pattern is selected, this function 0/1 44

switch 1 needle provides the capability of stitch compensation during in-corner sewing the compensation the aid of a presser lifter switch. function 0: OFF Compensation sewing disabled with the presser lifter switch

1: ON Compensation sewing enabled with the presser lifter switch

* Setting is possible only if LH-4168 or LH-4188 is selected for the machine

head.

* When using this function, it is necessary to set up the presser lifter function

selection (No.117) at 0 (function disabled).

107 In-corner sewing When the IP-100 is connected and a corner pattern is selected, this function 0/1 44

one-shot function is used to perform automatic one-shot sewing for in-corner sewing.

0: OFF Automatic one-shot sewing disabled during in-corner sewing 1: ON Automatic one-shot sewing enabled during in-corner sewing

* Setting is possible only if LH-4168 or LH-4188 is selected for the machine

head.

108 In-corner presser When the IP-100 is connected and a corner pattern is selected, this function 0/1 44

lifter function is used to perform automatic presser rising after the completion of in-corner

sewing.

0: OFF

Automatic presser rising disabled after the completion of in-corner sewing

1: ON

Automatic presser rising enabled after the completion of in-corner sewing * Setting is possible only if LH-4168 or LH-4188 is selected for the machine head. * This function is available only if the automatic presser lifter unit (AK) is connected.

109 Re-sewing When the IP-100 is connected, this function is used to stop/start sewing again 0/1 45

function (sewing retried in the middle of operation).

0: OFF Re-sewing function disabled 1: ON Re-sewing function enabled

* Setting is possible only if LH-4168 or LH-4188 is selected for the machine head.

110 Unilateral needle When a reverse or overlapped stitching pattern is selected, this function is 0/1 45

selection function used to stop/start the unilateral needle selection. When 0 (disable) is selected, (Free stitching/ unilateral needle selection is disabled for the reverse or overlapped stitching overlapped pattern. stitching) 0: OFF Unilateral needle selection function (during free stitching) disabled

1: ON Unilateral needle selection function (during free stitching) enabled

* Setting is possible only if LH-4168 or LH-4188 is selected for the machine head.

111 Unilateral needle When the IP-100 is connected and a corner pattern is selected, this function is 0/1 45

selection function used to stop/start the unilateral needle selection. When 0 (disable) is selected, (Corner pattern) arbitrary unilateral needle selection is disabled for the corner pattern.

0: OFF Unilateral needle selection function (during corner pattern) disabled 1: ON Unilateral needle selection function (during corner pattern) enabled

* Setting is possible only if LH-4168 or LH-4188 is selected for the machine head.

112 Selection of Selection of operation available when the teaching switch is pressed. 0 to 2 45

teaching 0: Normal (Teaching operation is performed under the conditions of teaching operation + unilateral needle selection.)

1: Teaching operation only by unilateral needle selection (It is unnecessary

to press the teaching switch in order to start up the teaching operation.)

2: Teaching operation disabled in the bilateral needle selection (Press the

teaching switch after the unilateral needle state has been assumed.)

* Setting is possible only if LH-4168 or LH-4188 is selected for the machine head.

113 Number of Selection of the number of reproduced stitches when corner teaching 0/1 46

stitches for (measuring the number of stitches for unilateral needle sewing) is carried out. teaching replay 0: The number of replay stitches coincides with that of measured stitches.

1: The number of replay stitches is less by 1 than that of measured stitches.

* Setting is possible only if LH-4168 or LH-4188 is selected for the machine head.

114Left bobbin When the IP-100 is connected, this function is used to stop/start the left 0/1 46

thread counter bobbin thread counter. function 0: OFF Left bobbin thread counter function disabled

1: ON Left bobbin thread counter function enabled

* Setting is possible only if LH-4168 or LH-4188 is selected for the machine head.

115 Right bobbin When the IP-100 is connected, this function is used to stop/start the right 0/1 46

thread counter bobbin thread counter. function 0: OFF Right bobbin thread counter function disabled

1: ON Right bobbin thread counter function enabled

* Setting is possible only if LH-4168 or LH-4188 is selected for the machine head.

107

108

109

110

111

112

113

114

115

Indication of Ref.

function setting page

106

– 33 –

No. Item Description Setting range

116 Selection of When the IP-100 is connected, switch selection is performed to start in-corner 0 to 6 46

corner teaching sewing in the case of corner pattern sewing. start switch 0: No function

1: Left needle selector switch 2: Right needle selector switch 3: Teaching switch 4: Optional switch 5: Knee switch, presser lifter switch 6: No function (Don’t care.)

* When 1: left needle selector switch, 2: right needle selector switch, or

3: teaching switch is selected for the in-corner selector switch, set No.111 unilateral needle selection function (corner pattern) at 0 (function disabled), without fail.

* Setting is possible only if LH-4168 or LH-4188 is selected for the machine head.

117 Selection of When the knee switch is connected, selection is performed to stop/start the 0/1 47

presser lifter automatic presser lifter function by means of the knee switch. switch function 0: OFF The automatic presser lifter is stopped with the knee switch.

1: ON The automatic presser lifter is used with the knee switch. * Setting is possible only if LH-4168 or LH-4188 is selected for the machine head. * When using this function, it is necessary to set up the presser lifter switch 1

(No.106) at 0 (function disabled).

118 Grease up error In the case of grease-up error (E220, E221), this error is cleared by setting 0/1 47

reset the setup description at 1.

0: Normal condition

1: Grease-up error reset when the power is turned on for the next time

(After grease-up error has been reset, this function is also canceled.) * Prior to resetting the grease-up error, grease-up treatment is always needed. * Setting is possible only for the machine head (part of the LH-4100 or

LH-3500 Series) where grease-up treatments are needed.

116

117

118

Indication of Ref.

function setting page

– 34 –

(4)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 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 CP-160 or higher class

model is connected.

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.

Setting range 0 to 8

0 : Flicker reducing function does not work.

8 : Flickering is effectively reduced.

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

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

Bobbin thread counting function (Function setting No. 6)

When the control panel (CP-160 or higher class model) 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 (CP-160 or higher class model) 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 specified.

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.

(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.

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.

37 800

– 35 –

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 or higher class model.)

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 : Function of neutral presser lifting change-over : By operating the optional switch, ON/

OFF can be changed over alternately.

(Note) Indication 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-100 control panel. Refer to the explanation of the control panel.

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

(Indication on the IP-100 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 specifications. (When using this function, the optional unit A is necessary.)

1. Bird’s nest prevention function (Function setting No. 18) 0 : Bird’s nest prevention function is ineffective. 1 : Bird’s nest prevention function is effective. 2 : Bird's nest prevention function is operative.(with tension release)

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

2. Needle thread release function at the sewing start (Function setting No. 19) 0 : Not provided with needle thread release function at the sewing start (Normal) 1 : Provided with needle thread release function at the sewing start

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

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

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

4. 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°>

5. 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°>

-15

– 36 –

6. 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

7. 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.

8. 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 2 stitches

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

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 or IP-100 can be changed over to needle up / down compensating stitching or one stitch compensating stitching.

0 : Needle up / down compensating stitching 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. 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 danger that the machine normally rotates. Adjust the function while checking the motion of the needle bar.

Setting range : 0 to 9

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 1 : Less reversing force to 100 : More reversing force

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>

100

250

– 37 –

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

Function setting

No. 30 No. 32 No. 33

100 or 1 0 or 1 It works as normal touch-back switch.

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

2 100pedal, 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

3 110or 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,

4 101automatic 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.

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.)

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.

Setting range 200 to MAX. rpm. <50 / rpm>

(Caution)1. Setting of the one-shot stitching is made by the control panel of the CP-160 or higher class model.

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

2500

5 111

Application

Output function

– 38 –

((

(

Adjustment of the pedal stroke (Function setting Nos. 39 to 44 and 48)

1. Pedal stroke at the start of rotation (Function setting No. 39)

Stroke between the pedal in its neutral position and starting position of rotation of the sewing machine can be adjusted.

Adjusting range

1.0 to 5.0 [mm] <0.1 / mm>

2. Low speed section of the pedal (Function setting No. 40)

Stroke of the low speed section can be adjusted by operating the pedal.

Adjusting range

1.0 to 10.0 [mm] <0.1 / mm>

3. Starting position of lifting presser foot by pedal (Function setting No. 41)

Stroke between the pedal in its neutral position and starting position of lifting presser foot can be adjusted. (When lifting presser foot by pedal is applied.)

Adjusting range

- 6.0 to 5.0 [mm] <0.1 / mm>

4. Setting of starting position of lowering presser foot (Function setting No. 42)

Stroke between the pedal in its neutral position and starting position of lowering presser foot can be adjusted.(When the automatic neutral presser foot lifting function is used.)

Adjusting range

0.8 to 5.0 [mm] <0.1 / mm>

5. Pedal stroke 2 for starting thread trimming (Function setting No. 43)

Stroke between the pedal in its neutral position and starting position of thread trimming can be adjusted. (When the function of lifting presser foot by pedal is provided.)

Adjusting range

-6.0 to -1.0 [mm] <0.1 / mm>

-21

-51

-7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 (mm)

No. 48

No. 43 a) b)

No. 41

No. 42

No. 39 No. 40

No. 44

No. 43 No. 48 No. 41 No. 39No. 42 No. 40 No. 44

Start of thread

trimming (PFL)

Start of thread

trimming

(Standard)

Start of lifting

presser foot

(PFL)

(When automatic

neutral presser

foot lifting

function is used.)

Start of lowering

presser foot

Start of rotation

of sewing

machine

Low speed

section

Reaching point

of highest

speed

Low speed section

Speed in compliance with depressing amount of pedal

Direction of depressing back part of pedal

Direction of depressing front part of pedal

Pedal neutral position

Adjustable range

– 39 –

))

)

Compensation of neutral point of the pedal (Function setting No. 45)

Compensation value of neutral point of the pedal is indicated. Setting of the compensation value of neutral point of the pedal is performed by the automatic compensation of neutral position of the pedal function.

Adjusting range

-15 to 15

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>

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°>

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.

Adjusting range

-36 to 36 <1 / 10°>

6. Pedal stroke for reaching the maximum number of rotations (Function setting No. 44)

Stroke between the pedal in its neutral position and the position where the sewing machine reaches at its highest speed can be adjusted.

Adjusting range

1.0 to 15.0 [mm] <0.1 / mm>

7. Pedal stroke 1 for starting thread trimming (Function setting No. 48)

Stroke between the pedal in its neutral position and starting position of thread trimming can be adjusted. (Standard type, or when the function of lifting presser foot by knee switch is provided.)

Adjusting range

-6.0 to -1.0 [mm] <0.1 / mm>

150

-35

Set value Compensation angle Number of sitches of compensation

-36 -360° -1

-18 -180° -0.5 00° 0

18 180° 0.5 36 360° 1

* When the point before 1

stitch is regarded as 0°, compensation is possible by 360° (1 stitch) in front and in the rear.

360°

180°

0°

-180°

-360°

-6

360°

180°

0°

-180°

-360°

-4

Set value Compensation angle Number of sitches of compensation

-36 -360° -1

-18 -180° -0.5 00° 0

18 180° 0.5 36 360° 1

– 40 –

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

-36 to 36 <1 / 10°>

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.)

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 high-

est 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.

(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 Function of holding predetermined upper/lower position of the needle bar is inef-

fective.

1 : on Function of holding predetermined upper/lower position of the needle bar is ef-

fective.

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.

360°

180°

0°

-180°

-360°

-9

Set value Compensation angle Number of sitches of compensation

-36 -360° -1

-18 -180° -0.5 00° 0

18 180° 0.5 36 360° 1

– 41 –

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 temporary stop of

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

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.

(Caution) 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.

0 to 250 ms 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

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.

(Caution) This function fails to work when turning ON the power or starting sewing immediately after

thread trimming.

0 to 5

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.

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.

49 140

Stop the sewing machine temporaily to change direction of sewing products.

Function setting No. 72

Function setting No. 71

rpm

Pedal neutral

Depressing pedal

Sew without stopping without a break.

Temporary stop

– 42 –

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 1 : More sharp curve

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

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

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.

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 . upper stop) is performed

only when aforementioned changeover is made.

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

In IP-100 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.) 1 : The sewing machine proceeds to next step without stopping after a step has com-

pleted.

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

his 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>

Sewing counter input function (Function setting No. 101)

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

4000

101

Number of rotation (rpm)

Pedal stroke (mm)

– 43 –

Function of prohibiting start of the sewing machine by bobbin thread counter (Function setting No. 13)

When operation panel (CP-160 or higher class model) is used, and when thread trimming is executed after the predetermined value has been subtracted until the counter value is reached "-"1, this function prohibits start of sewing machine afterward. Set this function when there is a possibility of failing to hear the buzzer sound only and making a mistake of the time of replacement.

(Caution) Reset the bobbin thread counter value when releasing the prohibition operation.

0 : Bobbin thread counter (in csse of -1 or less)

Without function of prohibiting start of sewing machine

1 : Bobbin thread counter (in case of -1 or less)

With function of prohibiting start of sewing machine

2 : Bobbin thread counter (-1 or less)

With function of forcibly prohibiting start of sewing machine

;;

;

Setting of number of rotations at low speed (Function setting No. 35)

This function sets the lowest speed of sewing machine when pedal is lightly operated. Adjust when the speed of sewing machine is felt slow.

Setting range : 20 to 400 rpm <5 rpm/step>

Setting of change-over speed of condensation stitch/EBT (Function setting No. 64)

This function sets the speed to be limited when performing reverse feed stitch at sewing end or condensation stitch which is sewn for preventing fray at the end of sewing. It is effective to change setting when seams at the sewing end are not neatly overlapped.

Setting range : 0 to 250 rpm <5 rpm/step)

Rotating direction of motor change-over function (Function setting No. 75)

This function changes over rotating direction of motor.

(Caution) Normally, it is not necessary to change setting since rotating direction of motor automatically

changes over according to the sewing machine.

0 : Clockwise (CW) 1 : Counterclockwise (CCW)

Function of prohibiting compensation stitching operation after turning handwheel by hand (Function setting No. 91)

This function can select Prohibited/Effective of compensating stitch command after needle position detector signal is OFF once by turning handwheel by hand after stop of sewing machine.

0 : Effective 1 : Prohibited

Fine adjustment of number of rotations function (Function setting No. 24)

When rotation is transmitted to the sewing machine by means of V belt, and the number of rotations of machine head and that of the sewing machine do not rotate in a ratio of 1 to 1 due to the uneven pulley groove or the like and the max. number of rotations of machine head is not gained, compensation can be added in the range of ±

1.5%. Setting range : -1.5 to 1.5% <0.1%/step>

200

64 180

+ 1.5%

Number of rotations

(rpm)

– 1.5%

– 44 –

Touch back switch 1 needle compensation function (Function setting No. 105)

When the IP-100 is connected and a corner pattern is selected in this condition, this function is used to perform compensation sewing in the middle of in-corner sewing with the use of the touch back switch.

0: off Compensation sewing disabled with the touch back switch 1: on Compensation sewing enabled with the touch back switch

* Setting is possible only if LH-4168 or LH-4188 is selected for the machine head.

Presser lifter switch 1 needle compensation function (Function setting No. 106)

0: off Compensation sewing disabled with the presser lifter switch 1: on Compensation sewing enabled with the presser lifter switch

* Setting is possible only if LH-4168 or LH-4188 is selected for the machine head. * When using this function, it is necessary to set up the presser lifter function selection (No.117) at 0 (function

disabled).

In-Corner sewing one-shot function (Function setting No. 107)

When the IP-100 is connected and a corner pattern is selected in this condition, this function is used to perform automatic one-shot sewing in the middle of in-corner sewing.

0: off Automatic one-shot sewing disabled during in-corner sewing 1: on Automatic one-shot sewing enabled during in-corner sewing

* Setting is possible only if LH-4168 or LH-4188 is selected for the machine head.

In-corner presser lifter function (Function setting No. 108)

When the IP-100 is connected and a corner pattern is selected in this condition, this function is used to perform automatic presser rising after the completion of in-corner sewing.

0: off Automatic presser rising disabled after the completion of in-corner sewing 1: on Automatic presser rising enabled after the completion of in-corner sewing

* Setting is possible only if LH-4168 or LH-4188 is selected for the machine head. * This function is available only if the automatic presser lifter unit (AK) is connected.

105

106

107

108

– 45 –

Re-sewing function (Function setting No. 109)

When the IP-100 is connected, this function is used to stop/use the re-sewing function (sewing retried in the middle of operation).

0: off Re-sewing function disabled 1: on Re-sewing function enabled

* Setting is possible only if LH-4168 or LH-4188 is selected for the machine head.

Unilateral needle selection function (Free stitching/ Overlapped stitching) (Function setting No. 110)

When a reverse or overlapped stitching pattern is selected, this function is used to stop/use the unilateral needle selection function. When 0 (disable) is selected, unilateral needle selection is disabled for the reverse or overlapped stitching pattern.

0: off Unilateral needle selection function (during free stitching) disabled 1: on Unilateral needle selection function (during free stitching) enabled

* Setting is possible only if LH-4168 or LH-4188 is selected for the machine head.

¡¡

Unilateral needle selection function (Corner Pattern) (Function setting No. 111)

When the IP-100 is connected and a corner pattern is selected in this condition, this function is used to stop/use the unilateral needle selection function. When 0 (disable) is selected, arbitrary unilateral needle selection is disabled for the corner pattern.

0: off Unilateral needle selection function (during corner pattern) disabled 1: on Unilateral needle selection function (during corner pattern) enabled

* Setting is possible only if LH-4168 or LH-4188 is selected for the machine head.

™™

™

Selection of teaching operation (Function setting No. 112)

When the teaching switch is pressed, the resultant operation is selected.

0: Normal (Teaching operation is performed under the conditions of Teaching + Unilateral

Needle Selection.)

1: Teaching operation only by unilateral needle selection (It is unnecessary to press the

teaching switch in order to start up the teaching operation.)

2: Teaching operation disabled in the bilateral needle selection (Press the teaching switch

after the unilateral needle state has been assumed.)

* Setting is possible only if LH-4168 or LH-4188 is selected for the machine head.

109

110

111

112

– 46 –

££

Number of stitches for teaching replay (Function setting No. 113)

The number of stitches is selected for teaching replay when corner teaching is carried out (measuring the number of stitches for unilateral needle sewing).

0: The number of replay stitches coincides with that of measured stitches. 1: The number of replay stitches is less by 1 than that of measured stitches.

* Setting is possible only if LH-4168 or LH-4188 is selected for the machine head.

¢¢

Left Bobbin thread counter function (Function setting No. 114)

When the IP-100 is connected, this function is used to stop/use the left bobbin thread counter.

0: off Left bobbin thread counter function disabled 1: on Left bobbin thread counter function enabled

* Setting is possible only if LH-4168 or LH-4188 is selected for the machine head.

Right bobbin thread counter function (Function setting No. 115)

When the IP-100 is connected, this function is used to stop/use the right bobbin thread counter

0: off Right bobbin thread counter function disabled 1: on Right bobbin thread counter function enabled

* Setting is possible only if LH-4168 or LH-4188 is selected for the machine head.

§§

Selection of corner teaching start switch (Function setting No. 116)

When the IP-100 is connected, the switch to start in-corner sewing is selected during corner pattern sewing.

0: No function 1: Left needle selector switch 2: Right needle selector switch 3: Teaching switch 4: Optional switch 5: Knee switch, presser lifter switch 6: No function (Don’t care.)

* When 1: left needle selector switch, 2: right needle selector switch, or 3: teaching switch is selected for the in-

corner selector switch, set No.111 unilateral needle selection function (corner pattern) at 0 (function disabled), without fail.

* Setting is possible only if LH-4168 or LH-4188 is selected for the machine head.

113

114

115

116

– 47 –

¶¶

Selection of presser lifter switch function (Function setting No. 117)

In the condition when the knee switch is connected, this function is used to select [stop or use] of the automatic presser lifter function by means of the knee switch.

0: off The automatic presser lifter is stopped with the knee switch. 1: on The automatic presser lifter is used with the knee switch.

*Setting is possible only if LH-4168 or LH-4188 is selected for the machin *When using this function, it is necessary to set up the presser lifter switch 1 (No.106) at 0 (function disabled).

••

•

Grease up error reset (Function setting No. 118)

When a grease-up error (E220, E221) occurs, this error can be reset by setting the setup description at 1.

0: Normal condition 1: Grease-up error reset when the power is turned on for the next time

(After grease-up error has been reset, this function is also canceled.)

*Prior to resetting the grease-up error, grease-up treatment is always needed. * Setting is possible only for the machine head (part of the LH-4100 or LH-3500 Series) where grease-up treat-

ments are needed.

117

118

– 48 –

6. CHANGING PROCEDURE OF THE PEDAL TYPE

(1)Parts necessary for change

Part No. Description Q’ty M4009351000A Spring shaft B 1 M4011351000 Return spring B 2 M4012351000 Return pressure adjusting screw 1 M2010110000 Return pressure adjusting nut 1

1. Loosen return pressure adjusting nut b in the pedal sensor A asm. (Fig. 1), remove return pressure adjusting screw a, remove return spring A

, and replace it with the return spring B. Then,

assemble a and b.

2. On side of pedal sensor B asm., assemble spring shaft B, return spring B, return pressure adjusting screw and return pressure adjusting nut in the same manner as side .

Caution) Apply grease to the shaft sections of

sections and when assembling.

Perform adjustment of the height of spring changed for the pedal type automatic presser foot lifter (PFL) Adjust with return pressure adjusting screw d so that the length of spring on side in Fig. 2 should be 27 mm and that the length of spring on side in Fig. 2 should be 28 mm. After the adjustment of height, tighten return pressure adjusting nut e so that return pressure adjusting screw d should not become loose.

(2)Attaching parts

(3)Adjusting pedal depressing pressure

Pedal sensor A asm.

Pedal sensor B asm.

Perform to stop loosening with adjusting nut.

Height of screw

(11 mm)

28mm

27mm

– 49 –

When the pedal sensor is changed (KFL → PFL or PFL → KFL), replace the jumper to fit the pedal type changed.

(Caution)

1. Type of pedal sensor with two return springs is PFL, and that of pedal sensor with one is KFL. Set the 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.

(4)Change-over procedure of the jumper

1) Pressing switch , turn ON the power switch.

2) Indication on the screen will be as illustrated in .

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 once, and turn ON

the power switch after closing the front cover to return to the normal mode.

(5)Automatic compensation of neutral point of the pedal sensor

Whenever the pedal sensor, spring, etc. are replaced, be sure to perform following operation :

KFL • PFL

KFL setting PFL setting

– 50 –

When using the AE device, the optional IO p.c.b. is necessary. Connect solenoid cord attached to the side of the AE device to 2P plug (red) 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.

7. CONNECTING PROCEDURE OF JUKIOPTIONAL DEVICE

(1)Connection of the bobbin thread remaining amount detection device, AE

1) Connect the connector of material end sensor (ED) to connector (CN45 : 6P) of SC-910.

2) Tighten the cord of the material end sensor together with other cords with cable clip band attached to the side of the box after passing it through the cable clamp.

(Caution)

1. Be sure to turn OFF the power before con-

necting the connector.

2. For the use of the material end sensor, re-

fer to the Instruction Manual attached to the material end sensor.

(2)Connection of the material end sensor (ED)

– 51 –

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

2) Tighten the cord of PK70 together with other cords with cable clip band 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.

(3)Connection of the pedal of standing-work machine (PK)

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 (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 autolifter 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.

8. SETTING OF THE AUTO LIFTER FUNCTION

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

– 52 –

External input/output connector which can take out the following signals that are convenient when installing counter or the like outside is prepared.

(Caution) When using the signals, consult engi-

neers who have electrical knowledge.

9. EXTERNAL INPUT / OUTPUT CONNECTOR

Table of assignment of connector and signal

JUKI genuine part No. Connector : Part No. HK016510130

Pin contact: Part No. HK016540000

CN42 Signal name Description Electric spec.

1 +5V — Power source 2 LS (N) Output Rotation signal 360 pulses/rotation DC5V 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 6 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 Rotation by pedal is prohibited while “L” signal is being inputted. DC5V, -5mA 12 SOFT Input Rotation speed is limited to the soft-speed while “L” signal is being inputted. DC5V, -5mA 13 SGND — 0V

Input/

output

– 53 –

All contents of function setting of SC-910 can be returned to the standard set values.

1) Pressing all switches , and inside the front cover, turn ON the power switch.

2) LED displays indication 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 after closing the front cover. The machine returns to the normal motion.

(Caution)

1. When this operation is performed, the neu-

tral 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 6. - (5).)

2. Even when this operation is performed, the

sewing data set by the operation panel cannot be initialized.

10.INITIALIZATION OF THE SETTING DATA

– 54 –

11. CONNECTOR CONNECTION DIAGRAM

(1) Solenoid for machine head

89101112 13 14

1234567

CN46

TRMD 1

TRM COM 8

BTD 6

BT COM 13

WPD 2

WP COM 9

SUB BTD 7

SUB BT COM 14

UTSD 4

UTS COM 11

BTSW 5

BTSW RIN 12

TRM (Thread trimming) Approx. 7.5

Ω

BT (Touch back) Approx. 6.5 Ω

WP (Wiper) Approx. 8.5 Ω

BT SW Touch back switch

N. C

(2) Solenoid for lifting presser foot

1 2

FLD 1

FLCOM 2

FL (Presser foot lifter) Approx. 5.4

Ω

CN40

– 55 –

12. OPTIONAL CORD

(1)Relay cord A asm. for the standing sewing machine

(Part No. M9701351AA0)

1) Wiring diagram of variable pedal PK-70 and -71

o Power section A which is separated by respective signals with different colors comes out from the relay

cord A asm. for the standing sewing machine. Connect switches and variable resistor for speed in

accordance with the wiring diagram. o Insert to the connector (CN32 : 12P) of standing sewing machine pedal in the PSC box and use it. oTighten the cord of the PK70 together with other cords with cable clip band 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.

Used by variable voltage between 1 to 2V (Increasing / decreasing speed) Neutral position is 1V ±

0.05V (Between 3 to 4)

12 11

Approx. 1.5m

CN32

Brown

Orange

Yellow

Green

Blue

Purple

Gray

White

Light blue

Pink

Black

Variable resistor

for speed

S GND

Switch for

lifting presser foot

S GND

Switch for thread

trimming

S GND

Switch for

high-speed

S GND

Switch for low-speed

S GND

VR (1k

Ω)

– 56 –

2) Wiring diagram of fixing max. speed

o Insert to the connector (connector CN32) of standing sewing machine pedal in the PSC box and use it.

(Caution) In case of decreasing the speed of switch for high-speed, use the variable resistor for max.

speed limit mounted on the control panel.

(2) Relay cord A asm. for DC24V (Part No. M9703351AA0)

Wiring diagram

o Insert to the yellow connector (CN120 2P) of DC24V in the PSC box and use it.

* Reference for use is approximately one piece of

solenoid valve. (Up to 100mA)

CN32

Brown

Orange

Yellow Green

Blue

Perple

Gray

White

Light blue

Pink

Black

CN120

DC24V

GND

Variable resistor for speed

S GND

Switch for lifting presser foot

S GND

Switch for thread trimming

S GND

Switch for high-speed

S GND

Switch for low-speed

S GND

1 2

Approx. 1.5mm

– 57 –

13.MAINTENANCE

(1)Replacing the fuse

1) Grasp the glass part of fuses , and and re move them.

2) Use the fuse of which capacity is specified.

: 2A/250Vtime-lag fuse (regenerative resistance protection fuse) Part No. KF000000040

: 6.3A/250V time-lag fuse (solenoid power fuse) Part No. KF000000030

: 3.15A/250V time-lag fuse (Power circuit protective fuses) Part No. KF000000080

– 58 –

(2) Power voltage changeover procedure

Changing procedure of the changeover connector

1. Turn OFF the power source with the power switch after confirming that the sewing machine has stopped.

2. Draw out the power cord from the power plug socket after confirming that the power switch is turned OFF. Then wait for five minutes or more.

3. Remove the front cover.

4. Remove three screws fixing the rear cover of the control box and slowly open the rear cover.

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 located on the upper side of the right side face as observed from the rear cover side.

• Connect the crimp style terminal of AC input cord to the power plug as shown in the figure.

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

• Changing the changeover connector Connect to 100V the 100/200V changeover connector of FL T p.c.b. located on the upper side of the right side face as observed from the rear cover side.

• Connect the crimp style terminal of AC input cord to the power plug as shown in the figure.

(Caution) Securely perform the insulation treat-

ment to the red terminal which is not used with insulation tape or the like. (When the insulation is insufficient, 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 FL T p.c.b. located on the upper side of the right side face as observed from the rear cover side.

• Connect the crimp style terminal of AC input cord to the power plug as shown in the figure.

(Caution) Securely perform the insulation treat-

ment to the red terminal which is not used with insulation tape or the like. (When the insulation is insufficient, 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.

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.

GREEN/

YELLOW

(Plug side)

WHITE

BLACK

RED

WHITE BLACK RED

GREEN/ YELLOW

GREEN/

YELLOW

GREEN/ YELLOW

(Plug side)

WHITE

BLACK

RED

WHITE BLACK

RED

GREEN/

YELLOW

(Plug side)

GREEN/ YELLOW

WHITE

BLACK

RED

WHITE BLACK

RED

– 59 –

14. Expansibility

If the parts specified below are added, the following models can be used:

No. Item name Item No. Model Remarks

DDL-5556N-7

1 I/O board (asm.) 40006077 LH-4168-7

LH-4188-7

2 EPF Board set 40022484 DLU-5494N-7 ∗

∗ For the DLU-5494N-7, select S (Standard) and procure the IP100C separately.

– 60 –

15. REGARDING ERROR DISPLAY (SC-910/SC-910A)

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

No. Phenomenon Cause Corrective measure

1 When tilting the sewing machine, the When tilting the sewing machine Tilt the sewing machine after turning

buzzer beeps and the sewing without turning OFF the power OFF the power. machine cannot be operated. switch, Action given on the left side

is taken for safety sake.

2 Solenoids for thread trimming, When the fuse for solenoid power Check the fuse for solenoid power

reverse feed, wiper, etc. fail to work. protection has blown out protection. Hand lamp does not light up.

3 Even when depressing the pedal Neutral position of the pedal has Execute the automatic neutral

immediately after turning ON the varied. correction function of the pedal sensor. power, the sewing machine does not (Neutral position may be shifted run. When depressing the pedal after when changing spring pressure of depressing the back part of pedal the pedal or the like.) once, the sewing machine runs.

4 The sewing machine does not stop

even when the pedal is returned to its neutral position.

5 Stop position of the sewing machine When tightening the screw in the Securely tighten the screw in the

varies (irregular). handwheel is forgotten at the time of handwheel.

adjustment of needle stop position.

6 Presser foot does not go up even Auto-lifter function is OFF. Select “FL ON” by auto-lifter function

when auto-lifter device is attached. selection.

Pedal system is set to KFL system. Change the jumper to PFL setting to

lift the presser foot by depressing the back part of the pedal.

Cord of auto-lifter device is not Connect the cord properly. connected to connector (CN40).

7Touch-back switch fails to work. Presser foot is going up by auto-liter Operate the switch after the presser

device. foot lowered. Auto-lifter device is not attached. Select “FL OFF” when auto-lifter

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

8 UP position move fails to work when The mode is in the function setting Remove the front cover, and arrange

all lamps on the panel light up. mode. the cords by the regular binding

The switch on the CTL p.c.b. is procedure described in the Instruction pressed by the bound cords and the Manual. aforementioned mode resulted.

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

disconnected. Connector (CN38,CN39) of motor Connect the cord properly.

signal cord is disconnected.

– 61 –

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 in the control box (SC-910/ SC-910A), turn ON the power switch.

2) LED becomes display 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 or . (When the confirmation of the contents of previous error advanced to the last, the warning sound peeps in single tone two times.)

(Caution) When operating switch , one before

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

– 62 –

(1)Error code list (SC-910/SC-910A)

No. Description of error detected Cause of occurrence expected Items to be checked

E000 Execution of data initialization • When the machine head is changed.

(This is not the error.) •

When the initialization operation is executed

E003 Disconnection of synchronizer • When position detection signal is not input • Check the synchronizer connector (CN30)

connector

from the sewing machine head synchronizer.

for loose connection and disconnection.

E004 Synchronizer lower position sensor • When the synchronizer has broken. • Check whether the synchronizer cord has

failure broken since the cord is caught in the

E005 Synchronizer upper position sensor machine head.

failure

E007 Overload of motor • When the machine head is locked. • Check whether the thread has been

entangled in the motor pulley.

• When sewing extra-heavy material beyond • Check the motor output connector (4P) the guarantee of the machine head. for loose connection and disconnection.

• When the motor does not run.

• Motor or driver is broken. • Check whether there is any holdup when

turning the motor by hand.

E008 Machine head connector failure • When the machine head connector is • Check the machine head connector

(Resistance pack) not properly read.

(CN31) for loose connection and disconnection.

E302 Tilt detection switch • When fall detection switch is input in • Check whether the machine head is tilted

(When the safety switch works) the state that the power is turned ON. 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.

E343 Bobbin thread remaining amount sensor • When the position of the detection bar • Check whether the detection bar of the

unit failure of the AE device is shifted from the AE device has returned to the correct

home position. 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.

E730 Encoder failure • When the motor signal is not properly • Check the motor signal connector

inputted. (CN38,CN39) for loose connection and

E731 Motor hole sensor failure disconnection.

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

E810 Solenoid short-circuit •

When the short-circuited solenoid is desired

• Check whether the solenoid is short-

to be driven. circuited.

E811 Overvoltage • When voltage higher than guaranteed • Check whether the applied power voltage

one is inputted. is higher than the rated voltage + (plus) 10%

or more.

• 200V has been inputted to SC-910 of • Check whether 100V/200V changeover 100V specifications. connector is improperly set.

• JUS : 220V is applied to the box of 120V. In the aforementioned cases, POWER

• CE : 400V is applied to the box of 230V. p.c.b is broken.

E813 Low voltage • When voltage lower than guaranteed • Check whether the voltage is lower than

one is inputted. the rated voltage - (minus) 10% or less.

• 100V has been inputted to SC-910 of • Check whether 100V/200V changeover 200V specifications. connector is improperly set.

• JUS : 120V is applied to the box of 220V.

•Inner circuit is broken by the applied • Check whether fuse or regenerative overvoltage resistance is broken.

E906 Communication trouble between • Operation panel cord is disconnected. • Check whether operation panel connectors

operation panels • Operation panel is broken. (CN34 and CN35) are loosened or

disconnected.

• Check whether operation panel cord is disconnected since the cord is caught with machine head.

E924 Motor driver failure • Motor driver has broken.

16.BLOCK DIAGRAM

(1) SC-910/SC-910A block diagram

– 63 –

AC INPUT CABLE A ASM. (1ø 200 to 240V, CE)

POWER SW A (3ø 200 to 240V)

POWER SW B (1ø 100 to 120V)

POWER SW C (1ø 200 to 240V)

4P4P

3P5P

(JS / JE / JME)

FLT_S PCB

CN1 AC INPUT

CN2 DC OUTPUT

CN3 RELAY POWER

(JPN / JUS)

FLT_T PCB

CN1 AC INPUT

CN2 DC OUTPUT

CN3 RELAY POWER

T6 - 1 T6 - 2 T6 - 3

T5 - 1 T5 - 2 T5 - 3

PWR PCB

CN12

CN11

CN10

CN13 +5V,+12V +24V,+33V OCRS,HEAT

26P

CN140

2P 6P

REGENERATIVE RESISTANCE A (ASM.)

CN30 SYNCHRONIZER I/F

CN31 RESISTOR PACK

CN43 COOLING FAN POWER * STOP WHEN HEAD IS

TILTED.

CN48 SAFETY SW OPTIONSAL SW

CN46 BT, WP, TRM (CON, TL) BTSW, FG

CN45 ED-3 EDDET, EDN

CN32 PEDAL FOR STANDING WORK PK70, 71/COMMERCIALLYAVAILABLE PEDAL

CN47 OPTIONAL I/F

1. OUTPUT/INPUT FOR LH-4000

2. OUTPUT FOR DDL-5556

3. OUTPUT/INPUT FOR AE-4

4. D/A INPUT FOR BARDAN

5. OUTPUT FOR NEEDLE COOLER

6. I/F (RS-232C) FOR PC

7. CORRESPONDING TO DIN STANDARD

8. (AEC) I/F FOR AUTOMATIC MACHINE

CN40

AK118

CN42

EXTERNAL

OUTPUT/

INPUT

CN44

POWER I/F

SIGNAL

CN41

POWER

CN39

MOTOR ENCODER

CN38

MOTOR ENCODER

CN34

IP PANEL

CN35

CP-160

CN37

PEDAL I/F

CTL PCB

NEW

OLD

CN39

CN38

SYSTEM PEDAL

MOTOR

HIGH

TORQUE

MOTOR

STANDARD

PC UTILITY SOFTWARE INITIAL VALUE SETTING PRODUCTION CONTROL INFORMATION

RS232C

CN109

CN105

UPSW

CN106RS422

CN34

CN35

BOBBIN THREAD REMAINING AMOUNT DETECTION DEVICE (AE-4)

CN126 BARDAN IF

CN122 NEEDLE COOLER OUTPUT

CN120 +24V

CN124 RS-232C

CN128 LH-4000 LEFT/RIGHT NEEDLE POSITION SENSOR

CN125 LH-4000 LEFT/RIGHT TEACHING SW

CN121 • CN123

CN130

CN131

CN129 LH-4000/DDL-5556 LEFT/RIGHT SOL./

SUCTION, HOLD, FEED

CN127

DDL-5556 I/F

CN47

8P2P

2P 2P

11P

10P

6P10P

60P

CN30

CN31

CN43

CN48

14P

12P

CN45

CN32

8P2P 13P 26P

CN40

CN41

26P

20P

MOTOR OUTPUT

CN121 CN123

SMART MEDIA

IO PCB

(2) IP-100 operation panel block diagram

– 64 –

17.DRAWING OF TABEL

(1) For DDL-8700

– 65 –

Part No. of table : 11156403

100

U-U

S-S

W-W

V-V (1:1)

X-X

Y-Y Z-Z T-T

Y - Y

rubber cushion installing

drawing for reference

X - X

rubber cushion installing

drawing for reference

Installing position of stopper for drawer (on the reverse side)

4 x ø 3.4 on the reverse side, depth 20 (Drill a hole at the time of set-up.)

JUKI logotype

C1.5 to C2.5 (For the hinge side only)

Measure detail drawing (2 : 1)

Style of penmanship : Helvetica Reg. Condensed

Voided letters

2 x ø3.5, depth 4

3 x ø13 drilled hole

2 x ø13, depth 10

ø16, depth 30

ø40

± 0.5

drilled hole

2 x ø 3.4 on the reverse side, depth 10 (Drill a hole at the time of set-up.)

2 x ø3.5, depth 10

1200

810

307

ø18 drilled hole

25.5

107

±1

80 (72.2)

339.7

±1

75.5

±0.1

14 9

68.1

±0.5

52.5

195

100

125 40

195

300

480

500

(525)

(591)

(21)5020

390

(244)

181

136

(22.5)

22.5

125

191

101

±2

±1

50.5

±1

21.5

86.5

141

360

(140)

195

200

535

27.5

139

–1

+0.5

ø26

ø8.5

17.5

±0.5

23.5

±0.5

19.5

±0.5

11.5

7.5

0.5

0.8

120˚

5 x 160 = 800

Thickness : 1.5

Thickness : 0.8 Thickness : 0.5

Thickness : 1.5

R30

R27.5

R30

R242.5

R10

R20

R22.5

242. 5

±1

R18

R22.5

R10

R22.5

R30

R22.5

R18

110

5-R1

1.2

±0.5

1.2

±0.5

310

(2) For DDL-9000

– 66 –

Part No. of table : 23642200

100

U-U

S-S

W-W

V-V (1:1) (3 places)

X-X (2 places) Y-Y(2 places) Z-Z (2 places) T-T

X-X

rubber cushion installing

drawing for reference

Y - Y

rubber cushion installing

drawing for reference

Installing position of stopper for drawer (on the reverse side)

4 x ø 3.4 on the reverse side, depth 20 (Drill a hole at the time of set-up.)

JUKI logotype

C1.5 to C2.5 (For the hinge side only)

Measure detail drawing (2 : 1)

Style of penmanship : Helvetica Reg. Condensed

Voided letters

3 x ø13 drilled hole

2xø3.5, depth 10

ø40

± 0.5

drilled hole

2 x ø 3.4 on the reverse side, depth 10 (Drill a hole at the time of set-up.)

2 x ø3.5, depth 10

1200

810

296

166.5

ø17 drilled hole

80 (172.5)

279

±1

14 9

68.1

±0.5

125

52.5

154.6

195300

520

500

(525.4)

(591)

(21)5020

(40)

390

(244)

181

136

(22.5)

22.5

125

21.5

86.5

141

360

322

535

27.5

139

–1

+0.5

(6)

ø26

ø8.5

17.5

±0.5

23.5

±0.5

19.5

±0.5

±1

11.5

7.5

0.5

0.8

120˚

5 x 160 = 800

Thickness : 1.5

Thickness : 0.8 Thickness : 0.5 Thickness : 1.5

R30

40˚

R30

R242.5

R10

R22.5

42. 5

R18

R22.5

R10

R22.5

R20

R30

R22.5

R18

110

5-R1

1.2

±0.5

1.2

±0.5

R27.5

V V

138.5

R27.5

310

40˚

9.5

±1

Q-Q

ø26

ø16

R20

40˚

±0.5

MARKETING & SALES H.Q.

8-2-1, KOKURYO-CHO, CHOFU-SHI, TOKYO 182-8655, JAPAN

PHONE : (81)3-3480-2357 • 2358 FAX : (81)3-3430-4909 • 4914

Please do not hesitate to contact our distributors or agents in your area for further information when necessary.

* The description covered in this engineer's manual is subject to change for improvement of the

commodity without notice.

06 · 07 Printed in Japan (E)

This manual uses environment-friendly soyink.

The environmental management system to promote and conduct

the technological and technical research, the development and design of the products in which the environmental impact is considered,

the conservation of the energy and resources, and the recycling, in the research, development, design, distribution, sale and maintenance service of the industrial sewing machines, household sewing machines and industrial-use robots, etc. and in the sale and maintenance service of data entry system and in the purchase, distribution and sale of the household commodities including the healthcare products.

JUKI SC-910, SC-910A Engineer's Manual

Specifications and Main Features

Frequently Asked Questions

User Manual