JUKI SC-510 User manual

i
ENGLISH
INStructIoN MaNuaL
Sc-510

CONTENTS
!. SPECIFICATIONS ..................................................................................... 1
@. SET-UP...................................................................................................... 1
1. Installing the motor unit ...........................................................................................1
2. Installing the control box..........................................................................................1
3. Installing the belt.......................................................................................................2
4. Adjusting the pulley cover........................................................................................2
5. Installation and adjustment for the protecting pin and the belt slip-off preventing
bracket................................................................................................................................. 3
6. Connecting the cords ...............................................................................................4
7. Attaching the connecting rod.................................................................................10
#. FOR THE OPERATOR ............................................................................ 11
1. Operation of SC-510................................................................................................11
2. Explanation of the operation panel .......................................................................13
3. Setting for functions of SC-510..............................................................................18
4. Function setting list ................................................................................................20
5. Detailed explanation of selection of functions.....................................................24
6. Automatic compensation of neutral point of the pedal sensor .........................37
7. Setting of the auto lifter function...........................................................................37
8. Initialization of the setting data..............................................................................38
$. MAINTENANCE ...................................................................................... 38
1. Replacing the fuse ..................................................................................................38
2. Changing procedure between 100V to 120V and 200V to 240V
(Possible only for the voltage changeover type) .................................................40
3. Error codes ..............................................................................................................41

ENGLISH
– 1 –
1
2
3
!. SPECIFICATIONS
@. SET-UP
Install the motor unit to the control box following the instructions below.
1. Installing the motor unit
Spring
washer
Nat
Convex
washer
(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 species. The power consumption 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.
Install the motor unit on the table with the tting bolt
asm. supplied with the unit as accessories.
At this time, insert the nuts and washers supplied
with the unit as accessories as shown in the gure
so that the motor unit can be securely xed on the
table.
1) Press three bolts 1supplied with the unit as ac-
cessories into the motor hanging bolt hole in the
table and x them.
2) Temporarily tighten convex washer, spring
washer and nut on the side where two bolts are
attached.
3) Hang the motor unit to the washer which has
been temporarily tightened, and attach convex
washer, spring washer and nut to the other bolt
on the opposite side.
4) After adjusting the installing position of the motor,
securely tighten the respective nuts.
2. Installing the control box
1) Loosen four screws 2supplied with the mo-
tor unit as accessories, tighten screws 2after
hanging control box unit 3 to the screws, and x
control box unit 3.
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
Operating environment Temperature : 0 to 40˚C
Humidity : 90% or less
Temperature : 0 to 40˚C
Humidity : 90% or less
Power consumption 425VA 425VA

－2 －
15mm (9.8N)
3. Installing the belt
Tension
adjust nuts
Belt
1) The belt distance, between sewing machine pul-
ley and motor pulley, must be parallel.
2) The belt tension should be adjusted by turning
the tension adjust nuts to change height of the
motor, so that the belt sinks down by about 15
mm (9.8N) when it is depressed by band at the
center of the belt span.
If the belt tension is not tight, speed is unstable
at low-speed or medium-speed operation, and
the needle will not stop exactly in position.
4. Adjusting the pulley cover
1) After adjusting the belt tension, adjust the pulley
cover 1so that the clearances between the belt
and the pulley cover 1, aand bshould be the
same.
2) After the completion of adjustment, tighten
screws 2located on the side of pulley cover
1 and securely x the pulley cover 1so that it
does not slip out of position.
a
b
1
1
2

ENGLISH
– 3 –
Belt
5. Installation and adjustment for the protecting pin and the belt slip-off preventing bracket
4 mm or less
Belt
4 mm or less
Adjusting position for protecting pin
Pulley
cover Motor
pulley
3 mm or less
Adjusting position for belt slip-off preventing braket
Attaching
hole A
Attaching
hole B
1) Attaching hole for the protecting pin
To attach protecting pin 1, select either attaching
hole Aor attaching hole Bin the motor pulley
cover in accordance with the direction of rotation
of the sewing machine and attach the pin in the
selected hole using screw 2and washer 3sup-
plied with the unit.
a)
If the motor shaft rotates in direction A in the
gure on the above:
/Attach protecting pin 1in attaching hole A.
b) If the motor shaft rotates in direction B in the
gure on the above:
/Attach protecting pin 1in attaching hole B.
2) Adjustment for the protecting pin and the belt
slip-off preventing bracket
Adjust the position of protecting pin 1and belt
slip-off preventing bracket 4in accordance with
the gure on the left.
a) Adjusting the protecting pin
Loosen screw 2and adjust so that protecting
pin 1is positioned at the location indicated
in the gure on the left.
b) Adjusting belt slip-off preventing bracket
Loosen screw 5and adjust so that belt slip-
off preventing bracket 4is positioned at the
location indicated in the gure on the left.
If protecting pin 1is not properly adjusted,
it is possible that your ngers may be caught
in the clearance provided between the pulley
and the belt resulting in injury. If belt slip-off
preventing bracket 4is not properly ad-
justed, it is possible to allow the belt to slip off
causing safety hazard.
3) After the adjustment, tighten screws 2and 5
so as to secure protecting pin 1and belt slip-off
preventing bracket 4to prevent these compo-
nents to uctuate because of vibration.
4) Before starting the operation of the sewing ma-
chine, ascertain that protecting pin 1and belt
slip-off preventing bracket 4do not come in
contact with the pulley and the belt.
A
1
23
4
5
B
1
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the
following work after turning the power off and ascertaining that the motor is at rest.
Belt

－4 －
Following connectors are prepared when loosening the front cover xing screws A of SC-510 and opening
the cover. Connect the machine head connectors to the positions corresponding to each other so as to t the
devices mounted on the machine head.
6. Connecting the cords
1CN30 Motor signal connector
2CN43 Needle bar position detector connector (+12V type)
3CN32 Machine head connector
4CN33 Needle bar position detector connector (+5V type)
5CN36 Machine head solenoid connector
6CN37 Presser foot lifter solenoid connector
7CN38 CP-160 panel connector
8CN40 Signal for extension output connector (For the details, refer to Engineer's Manual.)
9W1, W2,
W3, W4
Optional jumper pins for changeover of input/output of power source
(For the details, refer to Engineer's Manual.)
!0 CN50 Optional output connector (For the details, refer to Engineer's Manual.)
!1 CN51 Optional input connector (For the details, refer to Engineer's Manual.)
!2 CN41 Connector for extension p.c.b. (For the details, refer to Engineer's Manual.)
!3 W5 to W8 Jumpers for optional input changeover (For the details, refer to Engineer's Manual.)
!4 CN39 Pedal for standing work connector (PK-70 and the like can be used.)
Front cover
AA
9
2 31 4
5 7
!2
6 8 !1!0!4 !3
WARNING :
• To prevent personal injury caused by abrupt start of the sewing machine, carry out the work after
turning OFF the power switch and a lapse of 5 minutes or more.
• To prevent damage of device caused by maloperation and wrong specifications, be sure to
connect all the corresponding connectors to the specied places.
• To prevent personal injury caused by maloperation, be sure to lock the connector with lock.
• As for the details of handling respective devices, read carefully the Instruction Manuals supplied
with the devices before handling the devices.

ENGLISH
– 5 –
1) Pass the cords 1of the thread trimming sole-
noid, reverse-stitching solenoid, etc., and the
cords of the synchronizer 2, machine head 4P
connector 3through hole Ain the table to route
them down under the machine table.
2) Loosen setscrew 5in front cover 4.
3) Pressing the side of front cover 4in the direction
of the arrow, open the front cover toward you.
Note :
Be sure to open / close the front cover with your hands.
4) Connect 14P code 1coming from the machine
head to connector 7 (CN36).
5) Connect 4P connector coming from the machine
head 3to connector 8 (CN32).
6) Connect 7P connector 2coming from the ma-
chine head to connector 9 (CN33).
7) When the optional AK device is attached, con-
nect 2P connector coming from the AK device to
connector !1(CN37) .
8) Connect the connector 6coming from the motor
to connector !0 (CN30) on the circuit board.
(Caution) 1. When using the AK device, set whether
to use the AK device after conrming
how to select the auto-lifter function.
(Refer to page 37.)
2. Be sure to securely insert the respective
connectors after checking the inserting
directions since all connectors have the
inserting directions.
(When using a type with lock, insert the
connectors until they go to the lock.)
The sewing machine is not actuated un-
less the connectors are inserted prop-
erly.
In addition, not only the problem of error
warning or the like occurs, but also the
sewing machine and the control box are
damaged.
3. Perform the insertion of the connector by
lending your hands to the front cover.
1
2
3
6
89
7
!0
!1
5
4
1
A23

－6 －
[ Connection of the connector for CP panel ]
Exclusive connectors are prepared for connection of
the connector for CP-160.
Paying attention to the orientation of the connector
!2, connect it to connector !3 located on the circuit
board. After connecting, securely lock the connector.
9) After inserting the connector, put all cords togeth-
er with cable clip band !4 located on the side of
the box.
(Caution) 1. Fix the cord clamp and the cable clip
band following the attaching procedure.
2. When removing the cable clip band,
remove it while pressing the hook of the
cable clip band.
(Caution) 1. Fix the cable clip band following the attaching procedure as shown in the gure.
2. To remove the cable clip band, push the cable clip band until it comes off while pressing the hook
of the band following the removing procedure as shown in the gure.
How to x cable clip band !4
Pull
How to remove cable clip band !4
Push
Pushing the hook portion, push the band to remove it.
Push the hook.
Pull Push Push
!2
!3
!4

ENGLISH
– 7 –
12) Connect connector 4P !5 to connector !
6locat
ed
on the side of the box.
13) Connect motor outpu t cord !7 of the power switch
to connector !8.
10) Close front cover 4while paying attention to
pinching of the wire.
11) After that, x it with the screw 5.
14)Binding of the cords coming from machine head
Bind the cable attached to the machine head at
two places with the cable clip band !9 supplied
with the unit as accessories as shown in the g-
ure.
(Do not bind the motor signal cable together.)
15)Make sure that the power switch is turned OFF
and insert power supply cord @0 coming from the
power switch into the power plug socket.
(Caution) 1. Check again the supply voltage indicated
on the control box before connecting the
power cord.
2. Prepare the power switch conformed to
the safety standard.
3. Be sure to connect the ground wire
(green / yellow).
@0
!5
!6
!7
!8
!9
!9
5
4

－8 －
Crimp style terminal section
[ For CE specications only ]
1) Remove three screws 1located on the side of
the control box.
2) Set power source cover installing plate 2sup-
plied with the unit as accessories to the control
box main unit with the three screws which have
been removed.
3) Remove nut section 4from cord bush 3sup-
plied with the unit as accessories.
4) After checking the direction of the nut, pass the
nut through the power source cord supplied with
the unit as accessories.
(Caution) Note that the at face of the nut should
face the power source cover installing
plate side.
5) Pass the terminal of the power source cord
through the hole from the inside of the power
source cover installing plate.
6) Pass the cord bush, while paying attention to the
direction, through the power source cord from the
power source cord terminal side.
7) Insert connector 5of the power source cord to
the connector (top) of the control box.
(Caution) Securely insert the connector while paying
attention to the direction.
8) Tighten nut 4 and securely x the cord bush to
the installing plate.
9) Clamp section bof the cord bush and securely
x it to the cord.
1
2
3
4
b
4
5

ENGLISH
– 9 –
* For handling the cable, refer to 14) and 15) of “6. Connecting the cords”.
1) Remove three screws 1located on the side of
the control box.
2) Set power source cover installing plate 2sup-
plied with the unit as accessories to the control
box main unit with the three screws which have
been removed.
[ For LA specications only ]
10) Insert connector 6coming from the motor to the
connector of the control box from the inside.
11) Securely x power source cover 7supplied with
the unit as accessories to power source cover
installing plate 2with two screws 8supplied
with the unit as accessories while being careful
that the cord is not caught by the cover.
3) Pass the terminal of the power source cord
through the hole from the inside of the power
source cover installing plate.
4) After checking the direction of the nut 3, pass
the nut through the power source cord supplied
with the unit as accessories and insert it into the
conduit.
(Caution) Note that the at face of the nut should
face the power source cover installing
plate side.
5) Securely x it to the installing ttings with nut 3
from both sides.
6
8
7
2
3
1

－10 －
7. Attaching the connecting rod
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the
following work after turning the power off and a lapse of 5 minutes or more.
6) Insert connector 4of the power source cord to the connector (top) of the control box.
(Caution) Securely insert the connector while paying attention to the direction.
7) Securely x power source cover 5supplied with the unit as accessories to power source cover installing
plate 2with two screws 6supplied with the unit as accessories while being careful that the cord is not
caught by the cover.
* For handling the cable, refer to 14) and 15) of “6. Connecting the cords”.
1) Fix connecting rod 1to installing hole Bof
pedal lever 2with nut 3.
2) Installing connecting rod 1to installing hole A
will lengthen the pedal depressing stroke, and
the pedal operation at a medium speed will be
easier.
1
2
B
A
3
5
4
6

ENGLISH
– 11 –
#. FOR THE OPERATOR
1. Operation of SC-510
1) Press ON button 1of the power switch to turn
ON the power.
(Caution) When the buzzer is kept beeping imme-
diately after turning ON the power, press
OFF button 2on the sewing machine to
turn OFF the power since connection of
the cord or power voltage may be wrong.
1
2
2) When the needle bar is not in its UP position, it automatically rotates to reach the UP position.
(The motion differs by the selection of the machine head.)
(Caution) 1. When turning ON the power for the rst time, it will be slightly delayed since initialization is per-
formed.
2. When turning ON the power, do not place your hands under the needle.
[When operation panel is connected]
[When operation panel is not connected]
Display of power ON
When operation panel (CP-160, and IP-110) is
used
Power lamp of CP-160 or IP-110 lights up.
Two dots Bof the number indicating window at the
front cover of control box light up.
(Caution) When the buzzer continues sounding im-
mediately after turning ON the power, the
cord may not be properly connected or
power voltage may be not proper. Press
OFF button 2of the power switch to turn
OFF the power.
When operation panel (CP-160, and IP-110) is
not used
LED of the display of reverse stitching or over-
lapped stitching at the front cover of control box
lights up. (A)
* The power display LED that is built in the ma-
chine head lights up according to the machine
head.
B
A

－12 －
6) When operation panel 7is connected, various
sewing patterns such as reverse feed stitching
at sewing start, reverse feed stitching at sewing
end, etc. can be set.
Refer to the Instruction Manual for the operation
panel for the details.
7) When sewing is completed, make sure that the
sewing machine has stopped.
Then, press the OFF button 2of the power
switch to turn OFF the power.
3) When depressing front part 4of the pedal, the
sewing machine rotates at the number of revolu-
tions in accordance with the depressing amount.
When the pedal is returned to the neutral posi-
tion, the sewing machine stops.
4) When lightly depressing back part 5of the
pedal, the presser goes up. (PFL type only)
5) When strongly dpressing back part 6of the
pedal, thread trimming is performed.
2
5
4
6
7
CFour dots (C) in the numeral indicating window
momentarily light up as shown in the gure,
showing that the state has moved to the power
OFF state.

ENGLISH
– 13 –
2. Explanation of the operation panel
1/ switch : Used for determining the contents of setting.
When this switch is pressed, ashing stops and the contents of setting
are determined.
2 / switch : Used for changing the contents of setting.
When this switch is pressed, changeable positions ash on and off.
By pressing the switch, ashing position shifts in the right direction.
3switch : Used for changing the contents of the selected display (ashing section).
When this switch is pressed, the contents of the display increase.
4switch : Used for changing the contents of the selected display (ashing section).
When this switch is pressed, the contents of the display decrease.
5PATTERN SELECTION
display
: The selected pattern is displayed.
6REVERSE STITCHING AT
START display
: Rendered effective when reverse stitching pattern is selected.
“ ” Without reverse stitching display / “ ” Reverse stitching display /
“ ” Double reverse stitching display
7REVERSE STITCHING AT
END display
: Rendered effective when reverse stitching pattern is selected.
“ ” Without reverse stitching display / “ ” Reverse stitching display /
“ ” Double reverse stitching display
8NUMBER OF STITCHES
display
: Number of stitches of reverse stitching or overlapped stitching is dis-
played.
9MATERIAL EDGE SENSOR
display
: Lights up when the material edge sensor setting is selected.
Function setting No. 2
!0 ONE-SHOT AUTOMATIC
STITCHING display
: Lights up when the one-shot automatic stitching is selected.
Function setting No. 76
!1 AUTOMATIC THREAD
TRIMMING display
: Lights up when the automatic thread trimming by depressing the front
part of the pedal is selected.
Function setting No. 3
!2 THREAD TRIMMING PRO-
HIBITION display
: Lights up when the thread trimming prohibition is selected.
Function setting No. 9
1243!1 !2
6789!0
5

－14 －
3) Press switch 3or switch 4and
select the reverse stitching pattern.
Reverse stitching patterns and displays are as
follows.
: Reverse stitching
: Double reverse stitching
: Without reverse stitching
4) Press / switch 1to make reverse
stitching at end display 7 ash on and off, and
set the pattern in the same way as step 3).
2) Press / switch 1to make reverse
stitching at start display 6 ash on and off.
Every time / switch 1is pressed, the
ashing position shifts in the right direction.
(Caution) The sewing machine does not start in the
ashing state.
Operating procedure of the sewing pattern
Reverse stitching
at start display
Sewing pattern
Overlapped stitching pattern
Reverse stitching pattern
1
21
2
1
Shift direction
Flash
Contents of reverse
stitching slection
updating with swith3
3
4
7
6Flash
updating with swith4
1
Reverse stitching
at end display
Reverse stitching patterns that can be set
(1) Reverse stitching pattern
Reverse stitching patterns below can be set by using the operation panel.
[ Setting procedure of the reverse stitching ]
1) Hold pressing / switch 1, and press
/ switch 2to select the reverse
stitching pattern.
(Every time / switch 2is pressed,
reverse stitching pattern/overlapped stitching pat-
tern change over alternately.)
A
B
D
C
D
C
A
B
A
BB
A
D
C
D
C
A
B
A
B
A
B
D
C
D
C
D
C
D
C
D
C
A
B
A
B
⇔
7
6

ENGLISH
– 15 –
5) Press / switch 1to make number of
stitches display 8 ash on and off, and set the
number of stitches for the respective processes
of the stitching.
6) Press switch 3or switch 4to
change the number of stitches.
The number of stitches can be changed up to as
many as 15 stitches for the A, B, C, and D pro-
cesses respectively.
However, displays are as follows.
10 stitches = A, 11 stitches = b, 12 stitches = c, 13
stitches = d, 14 stitches =E and 15 stitches = F
7) When the setting of all items has been completed,
press / switch 2to determine the
contents of the setting. (Flashing stops.)
1
21
2
⇔
1
243
Overlapped stitching pattern
Reverse stitching pattern
(2) Overlapped stitching pattern
[Setting procedure of the overlapped stitching]
1) Hold pressing / switch 1, and press
/ switch 2to select the overlapped
stitching pattern.
(Every time / switch 2is pressed,
reverse stitching pattern/overlapped stitching pat-
tern change over alternately.)
Overlapped stitching patterns below can be set by using the operation panel.
A : Number of stitches of normal stitching setting
0 to 15 stitches
B : Number of stitches of reverse stitching setting
0 to 15 stitches
C : Number of stitches of normal stitching setting
0 to 15 stitches
D : Number of times of repetition
0 to 9 times
1
243
8
(Caution) When process D is set to 5 times, the sew-
ing is repeated as A /B /C /B /C.
2) The number of stitches for process A becomes in
ashing state.
3) Every time / switch 1is pressed, the
ashing position shifts in the right direction and
the display of the process where setting can be
changed ashes on and off.
4) Press switch 3or switch 4to
change the number of stitches.
5)
When the setting of all processes has been complet-
ed, press / switch 2to determine the
contents of the setting. (Flashing stops.)
(Caution) When the overlapped stitching is selected,
the automatic operation display ashes
on and off. It is not possible to release the
automatic operation.
A
B
C
B
C
D

－16 －
(3) Special setting
For material end sensor function, automatic thread trimming function, one-shot automatic stitching
function and thread trimming prohibition function which are displayed in the front panel, it is possible to
change the set value by directly moving to the function setting mode while the power is turned ON in ad-
dition to the normal function setting procedure.
[ Moving procedure to the function setting mode ]
1) Hold pressing / switch 1, and press
switch 3to move to the function setting
mode.
(Caution) Function setting No. 2 is displayed imme-
diately after the changeover.
2) When returning to the normal mode, press /
switch 2and determine the contents of
the setting.
1Material end sensor function setting (Function
setting No. 2)
It is rendered effective when connecting the op-
tional material end sensor.
It is possible to change the set value with
switch 3or switch 4.
0 : Material end sensor function is prohibited.
1 : Material end sensor function is effective.
2Thread trimming operation after material end
stop setting (Function setting No. 3)
Press / switch 1to advance to the
function setting No. 3.
It is possible to change the set value with
switch 3or switch 4.
0 : Material end stop
1 : Automatic thread trimming after detection of
material end
When "1" is selected, material
end sensor display lights up
when the mode has returned to
the normal one.
When "1" is selected, the auto-
matic thread trimming display
lights up when the mode is re-
turned to the normal one.
13
13
4
13
4
2

ENGLISH
– 17 –
5Thread trimming prohibition function setting
(Function setting No. 9)
Thread trimming operation at normal stitching
and overlapped stitching can be prohibited by
selecting the thread trimming prohibition.
Press / switch 1to advance to the
function setting No. 9.
It is possible to change the set value with
switch 3or switch 4.
0 : Thread trimming is effective.
1: Thread trimming is prohibited.
3Number of stitches to stop the sewing machine
after detection of material end setting (Function
setting No. 4)
Press / switch 1to advance to the
function setting No. 4.
It is possible to change the set value with
switch 3or switch 4.
Specied number of stitches : 0 to 19 stitches
(Caution) When the specied number of stitches is in-
sufcient, there is a case where the sewing
machine cannot stop within the specied
number of stitches depending on the speed
of rotation of the sewing machine.
4One-shot automatic stitching setting function
(Function setting No. 76)
Press / switch 1to advance to the
function setting No. 76.
It is possible to change the set value with
switch 3or switch 4.
0 : Pedal designated speed is prior.
1: Automatic operation
(Caution) It is rendered effective when the material
end sensor function is set.
It is not possible to prohibit the one-shot
operation at the time of the overlapped
stitching operation.
Speed of rotation is the speed set at the
function setting No. 38.
When "1" is selected, the one-
shot automatic stitching display
lights up when the mode is re-
turned to the normal one.
When "1" is selected, the thread
trimming prohibition display
lights up when the mode is re-
turned to the normal one.
13
4
13
4
13
4

－18 －
3. Setting for functions of SC-510
Functions can be selected and specied by means of the four setting switches and light emitting diode lo-
cated inside the front cover of the SC-510.
(Caution) • Do not perform switch operations other than those described in the following explanations.
• Be sure to re-turn the power switch ON after one second or more has passed. If the power is turned
ON immediately after turning it OFF, the sewing machine may not work normally. In this case, turn
ON the power again.
How to change over to the function setting modo
1) Turn OFF the power to the unit.
2) Pressing switch 4, turn ON the power to the unit.
1234
Specied value
Specied No.
3) Indication 5, 6 will be shown on the display.
(If the indication fails to change, re-perform the
procedures 1) and 2).
3Down switch (DOWN)
4
Up switch (UP)
1 Switch for entering specied value changed
and updating setting No. in DOWN direction
2 Switch for entering specied value changed
and updating setting No. in UP direction
4
6 5
4