JUKI SC-910, SC-910A Engineer's Manual
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
CD
CD
– 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
1
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
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.
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