JUKI DDL-8700 User manual

ii
ENGLISH

CONTENTS
1. SPECIFICATIONS .................................................................................... 1
2. 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 ............................................................................... 11
3. FOR THE OPERATOR ........................................................................... 11
1. Operation of SC-500 ............................................................................................. 11
2. Explanation of the operation panel ..................................................................... 13
3. Setting for functions of SC-500 ........................................................................... 18
4. Function setting list .............................................................................................. 20
5. Detailed explanation of selection of functions .................................................. 24
6. Automatic compensation of neutral point of the pedal sensor ........................ 32
7. Bobbin thread remaining amount detection device, AE ................................... 32
8. Connection of the pedal of standing-work machine ......................................... 32
9. Setting of the auto lifter function ........................................................................ 33
10. Connection of the material end sensor (ED) ..................................................... 33
11. Initialization of the setting data .......................................................................... 34
4. MAINTENANCE ...................................................................................... 34
1. Replacing the fuse ................................................................................................ 34
2. Changing procedure between 100V to 120V and 200V to 240V
(Possible only for the voltage changeover type) ............................................... 36
3. Error codes ............................................................................................................ 37

−1 −
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 environment Temperature : 0 to 40˚CTemperature : 0 to 40˚CTemperature : 0 to 40˚C
Humidity : 90% or less Humidity : 90% or less Humidity : 90% or less
Input 390VA (LZ-228*: 460VA) 390VA (LZ-228*: 460VA) 390VA (LZ-228*: 460VA)
1. Installing the motor unit
Install the motor unit on the table with the fitting 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 figure so that
the motor unit can be securely fixed on the table.
1) Press three bolts 1supplied with the unit as
accessories into the motor hanging bolt hole in the
table and fix 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 motor unit
as accessories, tighten screws 2after hanging
control box unit 3to the screws, and fix control
box unit 3.
1.SPECIFICATIONS
2.SET-UP
Install the motor unit to the control box following the instructions below.
1
2
3
Spring
washer
Nat
Convex
washer
(Caution) 1. Indication of the power consumption is the mean power consumption when DDL-8700
is mounted in accordance with the operating conditions JUKI specifies.
2. The power consumption changes in accordance with the operating conditions and the
mounted machine head. So, be careful.
3. Instantaneous maximum power consumption may become 1.5 times or more than the
mean power consumption.

−2 −
15mm (9.8N)
a
b
1
1
2
3. Installing the belt
1) The belt distance, between sewing machine pulley
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 1and
securely fix the pulley cover 1so that it does not
slip out of position.
Tension
adjust nuts
Belt

−3 −
AB
Belt
1
23
4
5
1
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 3supplied with
the unit.
a) If the motor shaft rotates in direction A in the
figure on the above:
/Attach protecting pin 1in attaching hole A.
b) If the motor shaft rotates in direction B in the
figure 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
figure on the left.
a) Adjusting the protecting pin
Loosen screw 2and adjust so that protecting
pin 1is positioned at the location indicated in
the figure 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 figure on the left.
If protecting pin 1is not properly adjusted, it
is possible that your fingers 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 adjusted,
it is possible to allow the belt to slip off causing
safety hazard.
3) After the adjustment, tighten screws 2and 5so
as to secure protecting pin 1and belt slip-off
preventing bracket 4to prevent these components
to fluctuate because of vibration.
4) Before starting the operation of the sewing
machine, ascertain that protecting pin 1and belt
slip-off preventing bracket 4do not come in contact
with the pulley and the belt.
5. Installation and adjustment for the protecting pin and the belt slip-off preventing bracket
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.
4 mm or less
Belt
4 mm or less
Adjusting position for protecting pin
Pulley
cover Motor
pulley
Belt
3 mm or less
Adjusting position for belt slip-off preventing braket
Attaching
hole A
Attaching
hole B

−4 −
Following connectors are prepared when loosening the front cover fixing screws Aof SC-500 and opening the
cover. Connect the machine head connectors to the positions corresponding to each other so as to fit the
devices mounted on the machine head.
WARNING :
•To prevent personal injury caused by abrupt start of the sewing machine, carry out the work after
turning OFF the power switch and a lapse of 5 minutes or more.
•To prevent damage of device caused by maloperation and wrong specifications, be sure to connect
all the corresponding connectors to the specified places.
• To prevent personal injury caused by maloperation, be sure to lock the connector with lock.
•As for the details of handling respective devices, read carefully the Instruction Manuals supplied
with the devices before handling the devices.
6. Connecting the cords
A
9
23
1
45
!0
7
!2
OPC circuit board A (asm.)
!3
A
Front cover
68
!1
!4
!5
!6
1CN30 Motor signal connector
2CN32 Machine head connector
3CN33 Needle bar position detector connector
4CN36 Machine head solenoid connector
5CN37 Presser foot lifter solenoid connector
6CN38 CP-160 panel connector
7CN39 Standing machine pedal connector
8CN40 Signal for extension connector (For the details, refer to Engineer's Manual.)
9CN51 Not used
!0 CN52 Not used
!1 CN53 Bobbin thread remaining amount detection solenoid connector
!2 CN189 External interface signal connector
!3 CN59 Bobbin thread count-up output connector
!4 CN55 Material end detection sensor (ED) connector
!5 CN58 Standing machine pedal connector
!6 CN57 Bobbin thread remaining amount detection sensor connector

−5 −
1) Pass the cords 笊of the thread trimming solenoid,
reverse-stitching solenoid, etc., and the cords of
the synchronizer 笆, machine head 4P connector
3through 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 machine
head to connector 9(CN33).
7) When the optional AK device is attached, connect
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 confirming how to
select the auto-lifter function. (Refter to
page 33.)
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 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.
3. Perform the insertion of the connector by
lending your hands to the front cover.
1
A23
5
4
1
2
3
6
89
7
!0
!1

−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 together
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 figure.
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 figure.
How to fix cable clip band !4
Pull
How to remove cable clip band
Push
Pushing the hook portion, push the band to remove it.
Push the hook.
Pull Push
!2
!3
!4
Push

−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.
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 figure.
(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).
5
4
!5
!6
!7
!8
@0
!9
!9
10) Close front cover 4while paying attention to
pinching of the wire.
11) After that, fix it with the screw 5.

−8 −
1
2
3
4
Crimp style terminal section
b
4
5
[ For CE specifications only ]
1) Remove three screws 1located on the side of the
control box.
2) Set power source cover installing plate 2supplied
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 3supplied
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 flat 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 4and securely fix the cord bush to the
installing plate.
9) Clamp section bof the cord bush and securely fix
it to the cord.