JUKI SC-910N Instruction Manual
ENGLISH
SC-910N
INStruCtIoN MaNuaL
i
CONTENTS
!
. SPECIFICATIONS ..................................................................................... 1
@
. SET-UP ...................................................................................................... 1
1. Installing M91 small sized motor unit ............................................................................................... 1
2. Installing to the table ..........................................................................................................................2
3. Adjusting the belt (when M91 is used) ..............................................................................................2
4. Adjusting the belt cover (when M91 is used) ...................................................................................3
5. Connecting the cords .........................................................................................................................4
6. Attaching the connecting rod .......................................................................................................... 11
7. Setting procedure of the machine head .........................................................................................12
8. Machine head list ..............................................................................................................................13
9. Adjusting the machine head (DDL-9000A only) .............................................................................14
#
. FOR THE OPERATOR ............................................................................ 15
1. Operating procedure of SC-910N .................................................................................................... 15
2. Explanation of the operation panel .................................................................................................17
3. Operating procedure of the sewing pattern ...................................................................................18
(1) Reverse stitching pattern ..............................................................................................................18
(2) Overlapped stitching pattern ......................................................................................................... 19
(3) Special setting ..............................................................................................................................20
4. Setting for functions of SC-910N .....................................................................................................22
5. Function setting list .......................................................................................................................... 24
6. Detailed explanation of selection of functions ..............................................................................31
7. Automatic compensation of neutral point of the pedal sensor ................................................... 40
8.Selectionofthepedalspecications .............................................................................................. 40
9. Setting of the auto lifter function ....................................................................................................41
10. Connection of the pedal of standing-work machine .....................................................................41
11. External input / output connector ...................................................................................................42
12. Connection of the material end sensor (ED) ..................................................................................42
13. Initialization of the setting data ....................................................................................................... 43
$
. MAINTENANCE ...................................................................................... 44
1. Removing the rear cover .................................................................................................................. 44
2. Replacing the fuse ...........................................................................................................................44
3. Error codes ........................................................................................................................................ 45
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!
. SPECIFICATIONS
Supply voltage Single phase 100 to 120V 3-phase 200 to 240V Single phase 200 to 240V
Frequency 50Hz/60Hz 50Hz/60Hz 50Hz/60Hz
Operating envi-
ronment
Input 350VA 350VA 350VA
@
. SET-UP
SC-910N control box can be used for DD (direct-drive) system machine head and the belt-drive system
machine head by connecting the separately-available small-sized motor unit (M91).
When using the small-sized motor unit, it is necessary to install the motor unit to the control box before in-
stalling the control box to the table.
Install the motor unit to the control box following the instructions below.
Temperature : 0 to 40˚C
Humidity : 90% or less
Temperature : 0 to 40˚C
Humidity : 90% or less
Temperature : 0 to 40˚C
Humidity : 90% or less
ENGLISH
SC-910N control box
A
1. Installing M91 small sized motor unit
2
1
M91 small-sized motor unit (separately-available article)
1) Lay down the control box while the rear cover is
placed under the control box.
2) Remove tie-mount A.
3) Adjust the hole section of the installing base of
M91 to the hole section of the installing plate.
4) Temporarily tighten ve places with counter-sunk
screws 1 supplied with the unit as accessories.
5) Securely tighten them with hexagonal wrench
key
(Caution) 1. W h e n tighten i n g t he screw, se-
2. Hexagonal wrench key is attached
3. Be careful that the motor shaft does
supplied with the unit as accessories.
2
curely insert the hexagonal wrench
key into the screw hole section to
tighten.
to M91.
not hit against anything. (If a strong
shock is given to the motor shaft,
there is the possibility that the mo-
tor is damaged.)
– 1 –
2. Installing to the table
Plain washer
Spring washer
Hexagonal nat
1) Install the control box to the table with the tting
bolt (asm.) supplied with the unit as accessories.
At this time, insert the nut and washer supplied
with the unit as accessories as shown in the gure so that the control box is securely xed.
2) Set the machine head to the table after installing the control box (or with small-sized motor) to the
table. (Refer to Instruction Manual for the sewing machine.)
3. Adjusting the belt (when M91 is used)
1) Adjust the belt tension by turning upper and lower
nuts 1of the adjustment bolt and adjusting the
height of the center of the motor so that the belt
sags 15 mm (9.8N) when the center of the belt is
pressed by hand.
(Caution) 1. When the belt tensi o n i s exces-
Approx. 15mm / 9.8N
1
sively low, medium or low speed
rotation becomes uneven, or stop
accuracy is deteriorated. When the
tension is excessively high, dete-
rioration of the motor is advanced.
So, be careful.
– 2 –
4. Adjusting the belt cover (when M91 is used)
1) Adjusting the clearance of the cover
Loosen cover setscrew 1 and adjust so that the
left and right clearances between the belt cover
and the belt are equal to each other.
(Caution) 1. Perform the adjustment of the cov-
1
2) Adjusting the roll-in prevention pin
Adjust the roll-in prevention pin with the hexago-
nal wrench key supplied with the unit as acces-
sories so that the clearance between the belt and
roll-in prevention pin 2 is approximately 4 mm.
4mm
2
3mm
3
5
(Caution) 1. Be careful of the direction of rota-
2. Perform the adjustment of the cov-
3) Adjusting the off-belt prevention pin
Adjust the off-belt prevention pin with the hexag-
onal wrench key supplied with the unit as acces-
sories so that the clearance between the belt and
off-belt prevention pin 3 is approximately 3 mm.
(Caution) 1. Perform the adjustment of the cov-
4) Installing the belt cover
Adjust the notch section of the pulley outer cover
4
er and insert the outer cover to the inner cover.
er with the hexagonal wrench key
supplied with the unit as accesso-
ries. At this time, be careful that the
screw is not excessively loosened.
ENGLISH
tion of the motor and determine the
position of the pin. (Position shown
in the figure is the installing posi-
tion when the motor rotates in the
direction of the arrow mark.)
er with the hexagonal wrench key
supplied with the unit as accesso-
ries. At this time, be careful that the
screw is not excessively loosened.
er with the hexagonal wrench key
supplied with the unit as accesso-
ries. At this time, be careful that the
screw is not excessively loosened.
to the gap of screw 5 of the pulley inner cov-
4
5) Tighten screw 5 to complete the adjustment of
the cover.
– 3 –
5. 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
connectallthecorrespondingconnectorstothespeciedplaces.
• 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.
7
3
4
5
8
1
6
Optional unit A
2
9
!1
2
1
9
6
7
8
5
!3
3
!2
!0
4
Following connectors are prepared on the front face of SC-910N. Connect the connectors coming from the
machine head to the corresponding places so as to t the devices mounted on the machine head.
CN30 Synchronizer : it detects the needle bar
1
position.
CN35 CP-170 panel : Various kinds of
2
programmed sewing can be executed.
(Refer to the Instruction Manual for each
panel for the details of functions.)
CN31 Machine head connector 4P
3
CN42 External input/output connector : input/
4
output of up/down detection signal, rotation
prohibition signal, etc. is prepared.
CN48 Safety switch (standard) : When tilting the
5
sewing machine without turning the power
OFF, the operation 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
6
presser foot lifter type only)
CN46
7
CN47 Optional circuit board connection connector
8
Machine head solenid : Thread trimming, reverse-
stitching solenoid, touch-back switch, etc.
: Required when using JUKI standard
bobbin thread remaining amount detection
sensor, etc.
CN39 Motor signal connector
9
CN32 Standing machine pedal : JUKI standard
!0
PK-70, etc. Sewing machine can be
controlled with the external signal.
CN34 IP-110 panel (LCD panel) : Various kinds of
!1
programmed sewing can be executed.
CN45 Material end detection sensor ED-5, etc.
!2
CN43 Fan
!3
* By adding the optional unit A, the following optional
devices of JUKI standard can be connected.
CN128 Left/right needle detection
1
CN127 Thread holding, thread suction, thread
2
drawing
CN122 Needle cooler (bottom fan)
3
CN121 Bobbin thread remaining amount detection
4
CN120 +24V external power source
5
CN123 Needle/bobbin thread remaining amount
6
detection sensor
CN125 External interface I/F D/A Input
7
CN126 Left/right lock SW, LED
8
CN129 Thread holding, thread suction, thread
9
drawing, bobbin thread remaining amount
detection.
– 4 –
7
2
3
A
5
6
1
4
1) P a s s th e co rd s 1 o f t he t h r e a d t ri m m i ng
solenoid, reverse-stitching solenoid, etc., and
the cords of the synchronizer 2, safety switch
, machine head 4P connector 4, motor signal
3
, motor output 6 through hole A in the table to
5
route them down under the machine table.
A
F
D
E
C
B
9
2
3
1
4
5
8
2) Loosen setscrew 8 in front cover 7.
3) Pressing the side of front cover 7 in the direction
of the arrow, open the front cover toward you.
Note : Be sure to open / close the front cover
with your hands.
4) Connect 14P code 1 coming from the machine
head to connector A (CN46).
5) Connect 4P connector coming from the machine
head 4 to connector B (CN31). (It is not necessary in case of DDL-9000A.)
6) Connect 4P connector 3 (safty switch connector) coming from the machine head to connector
(CN48).
C
7) Connect 7P connector 2 coming from the ma-
chine head to connector D (CN30).(It is not nec-
essary in case of DDL-9000A.)
8) Connect connector 5 coming from the machine
head (motor) to connector E (CN39).
9) When the optional AK138 device is attached,
connect 2P connector 9 coming from the AK device to connector F (CN40).
ENGLISH
(Caution) 1.
WhenusingtheAKdevice,setwhethertousetheAK device after conrming how to
select the auto-lifter function. (Refter to “#-9. Setting of the auto lifter function” p. 41.)
2. Be sure to securely insert the respective connectors after checking the inserting di-
rections since all connectors have the inserting directions. (When using a type with
lock, insert the connectors until they go to the lock.) The sewing machine is not actuated unless the connectors are inserted properly. In addition, not only the problem
of error warning or the like occurs, but also the sewing machine and the control box
are damaged.
– 5 –
10) Fix all cables coming from the machine head
!0
!1
with cable clip band !0 attached to tie-mount !1.
[ Connection of the connector for CP panel ]
Exclusive connectors are prepared for connection of
the connector for CP-170.
C
Paying attention to the orientation of the connec-
tor, connect it to connector B located on the circuit
board. After connecting, securely lock the connector.
[ Connecting for IP panel ]
The connector for connecting IP-110 is prepared.
B
When connecting, insert the connector until it is
locked to C.
!4
!3
!2
11) After inserting the connector, put all cords to-
gether with cable clip band !2 located on the side
of the box.
At this time, bundle the connectors which are
arranged above the wire saddle to wire saddle
and those which are arranged below the wire
!3
saddle to wire saddle !4.
(Caution) 1. Fix the cord clamp and the cable
clip band following the attaching
procedure.
2. When removing the connector, re-
move it from the wire saddle and
remove it while pressing the hook
of the cable clip band.
– 6 –
Howtoxcableclipband
Pull
!2
Pull
(Caution) 1. Fix the cable clip band following
the attaching procedure as shown
inthegure.
2. To r emov e the c able c lip b a n d,
pu sh the c able clip band u ntil it
comes off while pressing the hook
of the band following the removing
procedureasshowninthegure.
How to remove cable clip band
Push
Pushing the hook portion, push the band to remove it.
Push
Push the hook.
8
12) Close front cover 7 while paying attention to
pinching of the wire.
Lightly press portion D and insert front cover
7
with “click”.
13) After that, x it with the screw 8.
ENGLISH
G
H
7
D
6
14) Connect motor output cord 6 to connector G
located on the side of the box. Connect connec-
tor 4P !5 of the power switch to connector H.
(Caution) Route the motor output cord from the
front face of the box.
!5
– 7 –
[ForCEspecicationsonly]
3
4
1
2
15) Remove three screws 1 located on the side of
the control box.
6
7
5
9
16) Set power source cord set 3 and installing
plate 4 supplied with the unit as accessories as
shown in the gure, and x them to the control
box main unit with three setscrews 2 which have
been removed.
17) Connect connector 5 coming from the power
source cord to lower connector 6 after checking
the direction.
(Caution) When rubber bush 7 is off the install-
ing plate, adjust it to the groove of the
installing plate and insert it.
!1
8
!0
18) Connect motor output cord 8 to connector 9 located on the side of the box.
19) Fix power source cover !0 supplied with the unit using two screws !1 supplied with the unit.
(Caution) At this time, be careful so that the motor output cord is not caught by the power source
cover and so that the cord enters the recess of the power source cover.
CE 1ø 230V
Brown
Blue
Green / Yellow
(ground wire)
AC
220V-240V
20) Installing power switch
Connect power supply cord to the power switch.
[CEspecications]
Single phase 230V : Power supply cords :
Brown, Blue
and green/yellow (ground wire)
– 8 –
,
[Power voltage changeover procedure (power voltage setting procedure)]
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.
Changing procedure of the changeover connector
1. Turn OFF the power source with the power switch after
conrming that the sewing machine has stopped.
2. Draw out the power cord from the power plug socket after
conrming that the power switch is turned OFF. Then wait
for ve minutes or more.
3. Remove the front cover.
4. Remove three screws xing the rear cover of the control
box and slowly open the rear cover.
¥
.
A
B
C
WHITE
BLACK
RED
GREEN/
YELLOW
WHITE
BLACK
RED
GREEN/
YELLOW
WHITE
BLACK
RED
GREEN/
YELLOW
WHITE
BLACK
RED
GREEN/
YELLOW
WHITE
BLACK
RED
GREEN/
YELLOW
WHITE
BLACK
RED
GREEN/
YELLOW
1
(Plug side)
(Plug side)
(Plug side)
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.
• Connect the crimp style terminal of AC input cord to the
power plug as shown in the gure.
B. In case of using with single phase 100V to 120V
• Changing the changeover connector
Connect to 100V the 100/200V changeover connector of
FLT p.c.b. 1.
• Connect the crimp style terminal of AC input cord to the
power plug as shown in the gure.
(Caution) Securely perform the insulation treatment to the
red terminal which is not used with insulation tape or
thelike.(Whentheinsulationisinsufcient,thereisa
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
FLT p.c.b. 1.
• Connect the crimp style terminal of AC input cord to the
power plug as shown in the gure.
(Caution) Securely perform the insulation treatment to the
red terminal which is not used with insulation tape or
thelike.(Whentheinsulationisinsufcient,thereisa
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.
[Point when inserting/drawing out the connector]
When it is difficult to remove the
chang eover connector, insert a
small-sized screwdriver and press in
the direction of the arrow as shown
in the gure, and the connector can
be removed with ease
ENGLISH
– 9 –
[In case of using the power switch for LA]
It is necessary to separately purchase the parts below.
JUKI Part No. Description Q'ty Remarks
40012006 Set A for LA 1 For 3-phase 200 to 240V
40012007 Set B for LA 1 For single phase 100 to 120V
In addition, separately prepare the power switch for LA.
1
2
3
15) Remove three screws 1 located on the side
of the control box.
7
5
6
4
9
16) Tighten cover installing ttings 2 to the control
box main unit with three screws 3 which have
been removed in step 15).
17) Connect connector 4 coming from the power
source cord to lower connector 5 after checking
the direction.
(Caution) Adjust rubber bush 6 to the groove of
installing plate and insert it.
18) Pass nut 7 supplied with the power switch for
LA through the power cord and insert the cord
into the conduit (arrow mark).
Securely x it to the installing ttings with nut
7
from both sides.
!1
8
!0
19) Connect motor output cord 8 to connector 9 located on the side of the box.
Fix power source cover !0 supplied with the unit using two screws !1 supplied with the unit.
(Caution) At this time, be careful so that the motor output cord is not caught by the power source
cover and so that the cord enters the recess of the power source cover.
– 10 –
JA 3ø 220V
JA 1ø 120V
Black
Red
White
Green / Yellow
(ground wire)
Black
White
Green / Yellow
(ground wire)
AC
200V-240V
AC
100V-120V
@1
20) Installing power switch
Connect power supply cord to the power switch.
[JA specications]
3-phase 220 V : Power supply c o r d s : b l a c k ,
white, r e d a n d g r e e n / y e l l o w
(ground wire)
Single phase 120V : Power s u p p l y c o r d s : b l a c k ,
white, and green/yellow (ground
wire)
21) Make sure that the power switch is turned OFF
and insert power supply cord @1 coming from the
power switch into the power plug socket. (Illustra-
tion is for the japanese specication 100V type.)
(Caution) 1. Top end of power supply cord
@1
varies in accordance with destina-
tion or supply voltage. Check again
the supply voltage and the voltage
designated on the control box when
installing the switch.
2. P rep a r e t h e p o wer sw i t ch con -
formed to the safety standard.
3. Be sure to connect the ground wire (
green / yellow).
6. 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.
3
A
2
B
1
1) Fix connecting rod 1 to installing hole B of ped-
al lever 2 with nut 3.
2) Installing connecting rod 1 to installing hole A
will lengthen the pedal depressing stroke, and
the pedal operation at a medium speed will be
easier.
– 11 –
7. Setting procedure of the machine head
WARNING :
When the machine head other than DDL-9000A is used, the work of items 7, 8 and 9 is not
necessary. The machine head is automatically selected by inserting the machine head connector.
1) Refer to
910N" p.22
"#-4. Setting for functions of SC-
, and call the function setting No. 95.
2) The type of machine head can be selected by
pressing switch 3 ( switch 4).
1
2
3
4
3) After selecting the type of machine head, by
pressing switch 1 ( switch 2), the step
proceeds to 96 or 94, and the display automati-
cally changes to the contents of the setting cor-
responding with the type of machine head.
(Caution) W hen the t y p e of mach i n e head is
changed, the contents which have
been changed b e f o r e r e t u r n t o t h e
standard set values.
– 12 –
8. Machine head list
No. Machine head
Contents
of display
Number of revolutions at
the time of delivery (rpm)
1 DLM-5400 4000 4500
2 DLN-5410 4000 5000
3 DLN-5410H 3500 4000
4 DMN-5420 4000 5000
5 DLD-5430 4000 4500
6 DLU-5490 4000 4500
7 DDL-5600B 3700 4000
8 DDL-5550, DDL-8700 4000 5000
9 DDL-5550H 3500 4000
10 DDL-5556 4000 4000
11 DLU-5494 3500 4000
12 DDL-5581 4000 5000
13 DDL-5571H 3500 4000
14 DDL-5600J 4000 4000
15 DDL-5600L, U, R 3000 3000
16 DDL-5581S 2000 3500
17 DDL-5581M 4000 4000
18 DDL-5550A 4000 4000
19 DDL-5581A, K 4000 4000
20 DDL-5571U 3500 3500
21 DDL-5700 4000 4000
22 DDL-9000S 4000 5000
23 DDL-9000D 4000 4000
24 DDL-9000H 4000 4500
25 DLN-9010S 4000 5000
26 DLN-9010H 3500 4000
27 DLN-9010J 3500 4000
28
*
DDL-9000A SS/MA/MS
4000 5000
29 DDL-9000A DS 4000 4000
30 DDL-9000A SH 4000 4500
31 LH-3168 3000 3000
32 LH-3178 3000 3000
33 LH-3188 3000 3000
34 LH-3128 3000 3000
35 LH-2178 4000 4000
36 LH-3162 3000 3000
37 LH-3182 3000 3000
38 LH-4128S 3600 4000
39 LH-4128D 3000 3000
40 LH-4168 3200 3200
41 LH-4168D 3000 3000
42 LH-4188 3200 3200
43 LZ-2280 4000 5000
44 LZ-2286 4000 5000
Max. number of
revolutions (rpm)
ENGLISH
Machine head set at the time of delivery
＊
– 13 –
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