JUKI SC-510 Quick start guide

40025322
No.E364-02
ENGINEER’S MANUAL
SC-510
®

PREFACE
This Engineer’s Manual is written for the technical personnel who are responsible for the service and maintenance
of the machine.
The Instruction Manual for these machines intended for the maintenance personnel and operators at an apparel
factory contains operating instructions in detail. And this manual describes “Standard Adjustment”, Adjustment
Procedures”, “Results of Improper Adjustment”, and other important information which are not covered in the
Instruction Manual.
It is advisable to use the instruction Manuals and Parts Lists for SC-510/M51, IP-100E/SC-510, and CP-160C
together with this Engineer’s Manual when performing maintenance of these machines.
This manual gives the “StandardAdjustment” on the former page under which the most basic adjustment value is
described and on the latter page the “Results of Improper Adjustment” under which stitching errors and troubles
arising from mechanical failures and “How To Adjust” are described.

Electric shock danger label
This label indicates that
there is a danger of electric
shock in the cover on which
the label is pasted.
SAFETY DEVICE
Safety devices described below vary in accordance with the destination and specifications.
Motor pulley cover
Cover to prevent motor
pulley and V belt from
coming in contact with
each other.
Roll-in prevention pin
Pin to prevent roll-in by V
belt.
Motor fan cover
Cover to prevent motor fan
from coming in contact with
other components.
Electric shock danger label
This label indicates that
there is a danger of elec-
tric shock in the cover on
which the label is pasted.
Power voltage danger label
Cautions for usable power
voltage are described.
Power connector cover
Covertopreventconnec-
tors from electric shock
due to high voltage sec-
tion.

CONTENTS
1. SPECIFICATIONS....................................................................................................1
(1) SC-510/M51 ...............................................................................................................................................1
(2) Extension p.c.b. * (packed together with IP-100E) .....................................................................................1
2. OUTLINE..................................................................................................................1
(1) Features .....................................................................................................................................................1
3. CONFIGURATION ....................................................................................................2
(1) SC-510/M51 ...............................................................................................................................................2
4. EXPLANATION OF OPTIONAL CONTROL PANEL...............................................3
(1) List of control panel of CP-160 ...................................................................................................................3
(2) Explanation of control panel CP-160 ..........................................................................................................4
(3) Example of application ...............................................................................................................................5
(4) IP-100E operation panel.............................................................................................................................6
(5) How to operate sewing patterns with IP-100E............................................................................................8
(6) IP-100E information mode........................................................................................................................13
(7) Software upgrade .....................................................................................................................................47
5. CONTROL BOX (SC-510) .....................................................................................50
(1) Arrangement of connectors ......................................................................................................................50
(2) How to use the standard operation panel.................................................................................................51
(3) Setting for functions of SC-510.................................................................................................................56
(4) Function setting list (Start level ; U : User’s mode, S : Service mode) .....................................................58
(5) Detailed explanation of selection of functions ..........................................................................................64
(6) Automatic compensation of neutral point of the pedal sensor ..................................................................80
(7) Initialization of the setting data .................................................................................................................80
(8) How to select sewing machine head ........................................................................................................81
6. CHANGING PROCEDURE OF THE PEDAL TYPE ............................................. 83
7. CONNECTING PROCEDURE WITH JUKI OPTIONAL DEVICE ..........................84
(1) Connection of the pedal of standing-work machine..................................................................................84
(2) Setting of the auto lifter function ...............................................................................................................84
(3) Connecting procedure of CP-160 .............................................................................................................85
(4) Installation IPOP circuit board ..................................................................................................................85
(5) Installation of IP-100E ..............................................................................................................................85
8. EXTERNAL INPUT/OUTPUT CONNECTOR
(SIGNAL CONNECTOR FOR EXTENSION) .........................................................86
(1) Encoder output connector (CN40)............................................................................................................86
(2) Optional input/output connectors (CN50 and CN51) ................................................................................86
(3) Setting between IPOP board input/output connectors and jumper...........................................................87
(4) How to crimp the optonal connector .........................................................................................................91

9. HOW TO USE THE SIMPLIFIED PROGRAM FUNCTION ....................................93
(1) Simplified program function ......................................................................................................................93
(2) Sequence of start and input......................................................................................................................94
(3) Command input ........................................................................................................................................95
(4) Simplified program command list .............................................................................................................97
(5) Simplified program information input setting code list and connector location list....................................99
(6) Setting procedure of optional power and setting procedure of jumper for input changeover .................101
(7) Transition (sequence) diagram of No. 66 simplified program function ...................................................105
10. CONNECTOR CONNECTION DIAGRAM..........................................................109
(1) Solenoid for machine head.....................................................................................................................109
(2) Solenoid Connector for lifting presser foot .............................................................................................109
(3) Optional cord .......................................................................................................................................... 110
11. MAINTENANCE..................................................................................................112
(1) Replacing the fuse.................................................................................................................................. 112
(2) Changing procedure between 100V to 120V and 200V to 240V............................................................ 114
(3) Control voltage check terminal of CTL circuit board ...............................................................................115
12. ERROR CODES. ................................................................................................116
(1) Error code list .........................................................................................................................................117
(2) IP-100E operation panel disply...............................................................................................................119
<REFERENCE> TABLE OF DIGITAL DISPLAY......................................................120
13. BLOCK DIAGRAM. ............................................................................................121
14. INPUT/OUTPUT CHART ....................................................................................122

MEMO

– 1 –
1. SPECIFICATIONS
(1) SC-510/M51
No. Item Specifications
1 Supply voltage Single phase 100 to 120V 3-phase 200 to 240V Single phase 200 to 240V
2Frequency 50Hz/60Hz 50Hz/60Hz 50Hz/60Hz
3Operating temperature range Temperature : 0 to 40°CTemperature : 0 to 40°CTemperature : 0 to 40°C
4Operating humidity range Humidity : 90% or less Humidity : 90% or less Humidity : 90% or less
5Power consumption 425VA 425VA 425VA
6Number of input ports 8 8 8
7Number of output ports 8 8 8
8 Number of programs 4 4 4
9Number of steps 20 steps/1 program 20 steps/1 program 20 steps/1 program
10 Program input Control box or Control box or Control box or
operation panel (optional) operation panel (optional) operation panel (optional) operation panel (optional)
11 Operation panel CP-160C CP-160C CP-160C
(optional) IP-100E IP-100E IP-100E
2. OUTLINE
(1) Features
1) Voltage changeover function of single phase 100 to 120V/3-phase 200 to 240V is provided. (Adapting to a
part of specifications only)
The control box with voltage changeover function can be used either for single phase 100 to 120V or for 3-
phase 200 to 240V by replacing the power cord up to the power switch and setting the voltage changeover
connector inside the control box.
2) By connecting the operation panel, CP-160 to the control box as standard, function and operability are
further improved.
3) SC-510 main unit only has the programming function and it is possible for SC-510 main unit only to program
various input/output such as start, stop, etc. of the sewing machine by means of the external equipments or
external input/output signals by using the optional input/output terminals.
4) Version-up of the program of SC-510 main unit and extension of input/output terminals can be performed by
using the optional IP-100 and the extension p.c.b.
5) Reliability is further improved by employment of the switching power method which is strong against the
voltage fluctuation and strengthening of the protective circuit.
6) High-torque servo motor M51 of 750 W output is employed and a wide range adaptability from general
materials to extra heavy-weight materials can be displayed.
(Caution) 1. Indication of the power consumption is the mean power consumption when LU-1520N-7 is
mounted in accordance with the operating conditions JUKI specifies.The power consump-
tion changes in accordance with the operating conditions and the mounted machine head.
So, be careful.
2. Instantaneous maximum power consumption may become 1.5 times or more than the mean
power consumption.
(2) Extension p.c.b. * (packed together with IP-100E)
No. Item Specifications
1Panel connection port IP-100E connection port
2Number of input ports 8
3Number of output ports 8
4 Memory medium Smart media
5Program input IP-100E

– 2 –
3. CONFIGURATION
(1) SC-510/M51
: M51 (AC servo motor)
: Front cover
: Operation panel
: Pedal unit
: Power connector
: Motor connector

– 3 –
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.
Constant 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.
Needle up/down compensating switch : Used when performing needle up / down compensating stitching.
4. EXPLANATION OF OPTIONAL CONTROL PANEL
(1) List of control panel of CP-160
1) For the connecting destination of the connector, refer to the item (3) of 7. CONNECTING PROCEDURE WITH
JUKI OPTIONAL DEVICES.
2) By connecting of CP-160, all displays of standard operation panel of SC-510 go off.
However, error code No. is displayed only at the time of occurrence of error.

– 4 –
(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 oper-
ating 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 over-
lapped 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
automaticthread trimming can be performed by operatingthecontrol panel.
A and B = 0 to 19 stitches C and D = 0 to 99 stitches

– 5 –
(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) 1. Number of rotations of the automatic one-shot stitching can be changed by the function
setting (No. 38).
2. It is necessary to set the material end sensor input of the function code : 9 to the input port by
using the function of the optional input/output function selection (Function setting No. 12).
Label
CD
CD
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.

– 6 –
(4) IP-100E operation panel
Refer to the instruction manual of IP-100E/SC-510 for further information.
Re-sewing switch Unused
Needle up/down This is the switch to perform needle up/down compensating stitching.
compensating switch (Needle up/down compensating stitching and one stitch compensating
stitching can be changed over with function setting No.22.)
Screen changeover This is the switch to change over the screen.
switch
With/without reverse This is the switch to turn ON/OFF automatic reverse feed stitch at sewing start.
feed stitch at sewing *This switch cannot be used with the sewing machine which is not
start switch provided with automatic reverse feed stitching device.
With/without reverse This is the switch to turn ON/OFF automatic reverse feed stitch at sewing end.
feed stitch at sewing *This switch cannot be used with the sewing machine which is not
end switch provided with automatic reverse feed stitching device.
Reset switch This is the switch to make the value of bobbin thread counter or sewing
counter the set value.
Re-sewing switch Information switch Power display lamp
Needle up/down compensating switch Material edge sensor switch Smart media cover
Screen changeover switch One-shot stitching switch Smart media slot
With/without reverse feed stitch With/without automatic thread (Smart media inserting opening)
at sewing start switch trimmer switch Smart media
With/without reverse feed stitch Thread trimming prohibiting switch Optional :
at sewing end switch Counter value setting switch Part No.HX005750000
Reset switch Max. speed limitation variable resistor
Teaching switch

– 7 –
Teaching switch Unused
Information switch This is the switch to perform various function settings.
Material edge sensor Rendered effective when the material edge sensor is installed on the machine.
switch Used for selecting whether or not the material edge sensor is used during sewing.
One-shot stitching When this switch is set to effective, the sewing machine automatically operates
switch up to the specified number of stitches.
With/without automatic When this switch is set to effective, the sewing machine automatically performs
thread trimmer switch thread trimming when the specified number of stitches has been completed.
Thread trimming This switch prohibits all thread trimmings.
prohibiting switch*This switch cannot be used with the sewing machine which is not provided
with the automatic thread trimming device.
Counter value setting Thisisthe switch to set the value of bobbin thread counter of No. of pcs. counter.
switch
Max. speed limitation variable When moving the resistor in the left direction, max. speed is limited.
resistor
Power display lamp This lamp lights up when the power switch is turned ON.
Smart media cover This is the cover for smart media inserting opening.
To open the cover, place your finger on the notch located on the side of the cover
as shown in the figure and push the cover in the direction of left slanting rear.
*Therearesomefunctionsthatarenot able to be operated with the cover opened.
Do not close the cover unless smart media is completely inserted.
Smart media slot Toset smart media, insert smart media into smart media slot and push it until it is
(Smart media inserting opening) almost hidden.
To remove smart media, push it further again and it protrudes to the posi
tion where it can be held between your fingers. Now, draw it out.
*Be very careful of the inserting direction of smart media.

– 8 –
(5) How to operate sewing patterns with IP-100E
1. Free stitching pattern
OFF ON OFF ON
Sewing
pattern
OFF OFF ON ON
Press to display the pattern list screen.
1) Press switch to select the free stitching pattern, and the screen is automatically changed over to the number
of stitches of free stitching setting screen to display the number of stitches which has been already set.
2) When changing the number of stitches, change it with switches and for setting the number of stitches A
through D.
(The range of the number of stitches that can be changed : 0 to 99 stitches)

– 9 –
3) Press switch to set the reverse stitching at the start of sewing.
4) Press switch to set the reverse stitching at the end of sewing.
2. Constant dimension stitching pattern
OFF ON OFF ON
Sewing
pattern
OFF OFF ON ON Press to display the pattern list screen.
1) Press switch to select the constant dimension stitching pattern, and the screen is automatically changed over
to the number of stitches of constant dimension stitching setting screen to display the number of stitches which
has been already set.
No setting Reverse stitching Double reverse stitching
at the start of sewing at the start of sewing
No setting Reverse stitching Double reverse stitching
at the end of sewing at the end of sewing

– 10 –
2) When changing the number of stitches of the reverse stitching, change it with switches and for setting the
number of stitches of A and B.
In addition, when changing the number of stitches of the constant dimension stitching, change it with switches
and for setting the number of stitches of C D.
(The range of the number of stitches that can be changed : A and B = 0 to 19 stitches, C D = 0 to 500 stitches)
3) Press switch to set the reverse stitching at the start of sewing.
4) Press switch to set the reverse stitching at the end of sewing.
5) When automatic thread trimming switch is selected, thread trimming is automatically performed after pro-
cesses C D have been completed. (When setting the reverse stitching at the end of sewing, thread trimming is
automatically performed after the reverse stitching at the end of sewing has been completed)
When automatic thread trimming switch is not selected, press the touch-back switch after processes C D
have been completed, and the sewing machine rotates at low speed. (Compensation stitching operation)
In addition, when the pedal is returned to the neutral position and the front part of it is depressed again, the
sewing can be continued regardless of the setting of the number of stitches.
6) When thread trimming prohibiting switch is selected, the sewing machine will stop with the needle up without
performing thread trimming.
7) When one-shot automatic stitching switch is selected, automatic sewing is performed at the set speed without
a break by depressing the front part of the pedal.
3. Overlapped stitching pattern
Press to display the pattern list screen.
1) Press switch to select the overlapped stitching pattern, and the screen is automatically changed over to the
number of stitches of overlapped stitching setting screen to display the number of stitches which has already
been set.
No setting Reverse stitching Double reverse stitching
at the start of sewing at the start of sewing
No setting Reverse stitching Double reverse stitching
at the end of sewing at the end of sewing

– 11 –
2) When changing the number of stitches, change it with switches and for setting the number of stitches for
processes A through C. To change the number of times of the whole processes, change it with switches and
for setting the number of processes D.
(The range of the number of stitchesA,B and C that can be changed : 0 to 19 stitches. The range of the number
of processes D that can be changed : 0 to 9 times)
3) Depress the front part of the pedal once, and the sewing machine will repeat the normal stitching and reverse
stitching as many as the number of specified times. Then the sewing machine will automatically make the thread
trimmer actuate and will stop to complete the overlapped stitching procedure. (The one-shot automatic stitching
cannot be turned OFF.)
4) When thread trimming prohibiting function is selected, the machine will stop with the needle up upon comple-
tion of the overlapped stitching procedure without performing thread trimming.
4. Square stitching pattern
Press to display the pattern list screen.
1) Press switch to select the square stitching pattern, and the screen is automatically changed over to the
number of stitches of square stitching setting screen to display the number of stitches which has been already
set.
OFF ON OFF ON
Sewing
pattern
OFF OFF ON ON

– 12 –
2) When changing the number of stitches of reverse stitching, change it with switches and for setting the
number of stitches of A and B.
In addition, when changing the number of stitches of square stitching, change it with switches and for
setting the number of stitches of C and D.
(The range of the number of stitches that can be changed :Aand B = 0 to 19 stitches, C and D = 0 to 99 stitches)
3) Press switch to set the reverse stitching at the start of sewing.
4) Press switch to set the reverse stitching at the end of sewing.
5) The sewing machine automatically stops after completion of the process at processes C and D. At this time,
the sewing machine rotates at low speed when the touch-back switch is pressed (compensation stitching opera-
tion). In addition, when the pedal is returned to the neutral position and the front part of it is depressed again, the
sewing can be continued regardless of the setting of the number of stitches.
6) When automatic thread trimming switch is selected, thread trimming is automatically performed after comple-
tion of the last process. (When the reverse feed stitching at the end of sewing is set, the reverse feed stitching at
the end of sewing becomes the last process, and automatic thread trimming is performed after completion of the
process.)
7) When thread trimming prohibiting switch is selected, the sewing machine will stop with the needle up without
performing thread trimming.
8) When one-shot automatic stitching switch is selected, automatic sewing is performed at the set speed without
a break by depressing the front part of pedal at processes C and D.
9) When the sewing machine is provided with auto-lifter, the presser foot automatically goes up after completion of
the process at processes C and D.
No setting Reverse stitching Double reverse stitching
at the start of sewing at the start of sewing
No setting Reverse stitching Double reverse stitching
at the end of sewing at the end of sewing

– 13 –
In the information mode, you can specify, check, and edit various data and also perform other operations. The
information mode consists of the operator level and maintenance personnel level. Refer to the instruction manual of
IP-100E/SC-510 for the operator level.
[Maintenance personnel level]
1) Turn ON the power.
2) Press the switch for 3 seconds to call the information screen.
■Information screen (Maintenance personnel level)
1) Press the respective switches to display the screens of the respective functions. (Press the switch , , , or
for 3 seconds for corresponding operation.)
Press switch to end the information mode, and the screen returns to that before the information mode.
Version display ..............................1. Refer to the version function.
Sewing common setting ................2. Refer to the sewing common data function.
Function setting .............................Refer to the instruction manual for IP-100E/SC-510.
Sewing management setting .........3. Refer to the sewing management information.
Data communication......................4. Refer to the communication function.
SM format (Smart media) ..............5. Refer to the SM format function.
(Caution) When the smart media format is executed, all data which have been currently recorded will
disappear. Be careful not to use the format for any other than the initialization of the smart
media.
(6) IP-100E information mode

– 14 –
1) Version function
This function allows you to view the version of each component such as operation panel [IP-100E], IPOP board
[SC-510 expansion], and CTL board [SC-510 main body].
■Version display screen
[Standard setting]
(Contents)
1. After checking a version, you can return to the last screen by pressing the switch . If you press the switch
, the information mode ends and the screen before the information mode screen appears again.
RVL
01— 01 — 01 00
Others
Level
Version
Revision
CPU type
: Operation panel program (IP-100E)
: IPOP program (SC-510 expansion [IPOP board])
: Servomotor program (SC-510 main body [CTL board])