JUKI SC-922 Instruction Manual

SC-922
INSTRUCTION MANUAL

CONTENTS

I. SPECIFICATIONS ........................................................................................ 1
II. SET-UP ........................................................................................................ 1
1. Installing to the table ..........................................................................................................................1
2. Installing the motor unit .....................................................................................................................2
3. Installing the control box ................................................................................................................... 2
4. Installing the belt ................................................................................................................................3
5. Adjusting the pulley cover .................................................................................................................3
6. Installation and adjustment for the protecting pin and the belt slip-off preventing bracket ....... 4
7. Connecting the cords ......................................................................................................................... 5
8. Attaching the connecting rod .......................................................................................................... 13
9. Setting procedure of the machine head .........................................................................................14
10. Adjusting the machine head (direct-drive motor type sewing machine only) ............................ 15
III. FOR THE OPERATOR ............................................................................. 16
1. Operating procedure of the sewing machine .................................................................................16
2. Operation panel (CP-18) ................................................................................................................... 17
3. Operating procedure of the sewing pattern ...................................................................................18
(1) Reverse feed stitching pattern ...................................................................................................... 18
(2) Overlapped stitching pattern .........................................................................................................19
4. One-touch setting .............................................................................................................................20
5. Production support function ...........................................................................................................22
6. Setting of functions of SC-922 ........................................................................................................25
7. Function setting list ..........................................................................................................................27
8. Detailed explanation of selection of functions ..............................................................................33
9. Automatic compensation of neutral point of the pedal sensor ...................................................47
10.Selectionofthepedalspecications ..............................................................................................47
11.
12. Input/output function of the hand switch and knee switch ..........................................................49
13. Use of the hand switch and the knee switch ..................................................................................50
14. Setting of the auto lifter function ....................................................................................................51
15. Selecting procedure of the key-lock function ................................................................................52
16. Initialization of the setting data ....................................................................................................... 52
17. External input / output connector ...................................................................................................53
18. How to connect the material edge sensor ......................................................................................54
... 48
IV. MAINTENANCE ....................................................................................... 55
1. Removing the rear cover ..................................................................................................................55
2. Replacing the fuse ............................................................................................................................ 55
3. Error codes ........................................................................................................................................56
i

I. SPECIFICATIONS

Supply voltage Single phase 100 to 120V 3-phase 200 to 240V Single phase 220 to 240V
Frequency 50Hz/60Hz 50Hz/60Hz 50Hz/60Hz
Operating envi-
ronment
Input 310VA 310VA 310VA
* The electric power is a reference value for the model equipped with the LU-1510N-7 machine head.
It differs by the selected machine head.
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

II. SET-UP

The SC-922 can be used with the direct-motor type machine head as a stand-alone control box. It can also
be used with the belt-driven type machine head by installing on the motor unit.
This manual describes the procedure for the aforementioned two setup methods.

1. Installing to the table

To use the SC-922 with the direct-motor type machine head, install the control box on the table according to
the following instruction.
This describes the procedure for installing the SC-922 on the table of the LU-2810-7 sewing ma-
1
1
!0
chine. To use any other machine head, install the
control box on the table referring to the Instruction
Manual for the main body of the relevant sewing ma-
chine. Install the control box suspending plate on the
table with mounting bolts supplied with the unit. 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 1 supplied with the unit as ac­cessories into the motor hanging bolt hole in the
table and x them.
2) Fix suspending plate 5 supplied with the unit
on the three bolts with plain washer 2, spring washer 3 and nut 4.
3) Fix rubber 6 on the suspending plate with spring
washer 7 and nut 8.
4) Hang one end of the control box on the threaded
part of rubber on the side which has two bolts.
Then, hang the other end of the control box on
the opposite side.
5) Temporarily x the other threaded part of rubber
with plain washer 9 and nut !0. In this case, the spring washer is not used.
6) Adjusting the installing position of the control box.
Then, securely tighten the nuts.
2 3
4
9
6
5
7
8
– 1 –

2. Installing the motor unit

To use the SC-922 with the belt-drive type machine head, install the control box on the motor unit according
to the following instruction.
Install the motor unit on the table with the tting bolt
asm. supplied with the unit as accessories.
1
Nat
Spring washer
Convex washer
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 1 supplied 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.

3. Installing the control box

1
1) Attach bracket 1 supplied with the unit using
four supplied screws (M5 x 10) as shown in the gure.
2
3
2) Loosen four screws 2 supplied with the mo­tor unit as accessories, tighten screws
2
after
hanging control box unit 3 to the screws, and x control box unit 3.
– 2 –

4. Installing the belt

15mm (9.8N)
1

5. Adjusting the pulley cover

b
Belt
a
1
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 1 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.
1) After adjusting the belt tension, adjust the pulley
cover 1 so that the clearances between the belt
and the pulley cover 1, a and b should be the
same.
2) After the completion of adjustment, tighten screws
located on the side of pulley cover
2
securely x the pulley cover
slip out of position.
so that it does not
1
1
and
1
2
– 3 –
6. Installation and adjustment f or the protecting pin and the b e l t 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.
1) Attaching hole for the protecting pin
To attach protecting pin 1, select either attaching
hole A or attaching hole B in 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 2 and washer 3 sup-
plied with the unit.
a))
If the motor shaft rotates in direction A in the
gure on the above:
Attach protecting pin 1 in attaching hole A .
b)
If the motor shaft rotates in direction B in the
gure on the above:
Attach protecting pin 1 in attaching hole B .
2
3
1
Belt
Attaching
hole
A
Belt
A
4 mm or less
B
Attaching
hole
B
1
4 mm or less
Adjusting position for protecting pin
Pulley
cover
Motor pulley
Belt
3 mm or less
5
4
Adjusting position for belt slip-off preventing bracket
2) Adjustment for the protecting pin and the belt
slip-off preventing bracket
Adjust the position of protecting pin 1 and belt
slip-off preventing bracket 4 in accordance with
the gure on the left.
a) Adjusting the protecting pin
Loosen screw 2 and adjust so that protecting
pin 1 is positioned at the location indicated
in the gure on the left.
b) Adjusting belt slip-off preventing bracket
Loosen screw 5 and adjust so that belt slip-
off preventing bracket 4 is positioned at the
location indicated in the gure on the left.
If protecting pin 1 is 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 4 is not properly ad-
justed, it is possible to allow the belt to slip off
causing safety hazard.
3) After the adjustment, tighten screws 2 and 5
so as to secure protecting pin 1 and belt slip-off
preventing bracket 4 to prevent these compo-
nents to uctuate because of vibration.
4) Before starting the operation of the sewing ma-
chine, ascertain that protecting pin 1 and belt
slip-off preventing bracket 4 do not come in
contact with the pulley and the belt.
– 4 –

7. 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
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.
Following connectors are prepared on the SC-922. Connect the connectors coming from the machine head to the corresponding places so as to t the devices mounted on the machine head.
2
!1
1
CN30 Motor signal connector
1
CN33 Needle bar position detector (+5V type): It
2
detects the needle bar position.
CN36 Machine head solenoid: Provided with sole-
3
noids for thread trimming, reverse feed stitch­ing, one-touch type reverse feed switch.
CN37 Presser foot lifting solenoid (Only for the auto-
4
matic presser foot lifter type)
CN38 Operation panel: Various kinds of sewing can
5
be programmed. (For details of the operation
panel other than CP-18, refer to the Instruction
Manual for the panel to be used.)
CN39 Standing machine pedal : JUKI standard
6
PK70, etc. Sewing machine can be controlled with external signals.
CN40 Single-needle control solenoid: It is used with
7
the LH-4100 sewing machine provided with a single-needle control device.
CN41 Stepping motor: It is used only with the DLU-
8
5494N-7.
5 6
!5!2
9
3 4 7 8
!0
CN43 Synchronizer (+12V type) : It detects the
9
CN44 Hand switch: Hand switch other than the
!0
CN48 Safety switch (standard) : When tilting the
!1
CN51 Extended input/output connector
!2
CN55LED lamp (+5 V type): The LED lamp can be
!3
CN58 Extended input connector (for the sensor
!4
CN59 Extended output connector (for the solenoid
!5
!4
needle bar position.
touch-back switch.
sewing machine without turning the power OFF, the operation of the sewing machine is prohibited so as to protect against danger. OPTION switch: Input function can be changed by changing over the internal function with this switch.
connected optionally. (Refer to
touch setting" p.20
quantity of light.)
input, etc.)
valve output)
!3
"III-4. One-
for how to adjust the
– 5 –
A
2
B
3
1
1) Pass cords 1 of the thread trimmer solenoid,
reverse feed solenoid and detector cords
2
through table hole A and route them under the
table. (Detector cord 2 is not provided for the
direct-motor type machine head.)
[For the belt-drive type machine head]
!1
!0
9
5 7
48
2) Loosen screw B in cover 3 with a screwdriver to
open the cover.
For the direct-motor type machine head, proceed
to step 4).
3) Connect 14P code 4 coming
from the machine head to con­nector 5 (CN36).
When the optional AK device
is attached, connect 2P con­nector 6 coming from the AK device to connector
(CN37).
7
Insert connector 8 coming from the detector into connec-
6
tor 9 (CN33).
Connect 9P connector !0 com-
ing from the motor to connector
(CN30) on the circuit board.
!1
Proceed to step 5).
(Caution)
WhenusingtheAKdevice,setwhether tousetheAK deviceafterconrminghowtoselectthe
auto-lifter function. (Refter to “III-14. Setting of the auto lifter function” p. 51.)
[For the direct-motor type machine head]
!1
!0
5 7
4
– 6 –
6
4) Connect 14P cord 4 coming
from the machine head to con-
nector 5 (CN36). Connect 2P
connector 6 to connector
7
(CN37).
Connect 9P connector
!0
coming from the motor to con­nector !1 (CN30) on the circuit
board. Proceed to step 5).
[Connecting the connector for the operation panel]
!3
!2
[ Connection of the pedal of standing-work machine ]
!5
5) The connector for the operation panel is provided.
Paying attention to the orientation of the connec-
tor !2, connect it to connector (CN38) !3 located
on the circuit board. After connecting, securely
lock the connector.
(Caution) Be sure to turn OFF the power before
connecting the connector.
6) To use the pedal unit with the sewing machine
for standing work, insert PK70 connector !4 into
connector !5 (CN39: 12P) on the PCB.
(Caution) Be sure to turn OFF the power before
connecting the connector.
!4
(Caution) 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.
[How to bundle all cords]
7) After inserting the connector, put all cords togeth-
er with cable clip band !6 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 connector, re-
!6
Howtoxcableclipband
How to remove cable clip band
mov e it fro m the wir e saddl e and remove it while pressing the hook of the cable clip band.
Panel
Pull
Push the
hook.
– 7 –
Panel
Push
Pushing the hook portion, push the band to remove it.
B
3
8) Close cover
screw
(Caution) Take care not to allow the cord to be
with a screwdriver.
B
caught under cover 3.
and fix the cover by tightening
3
@0
!9
[ForCEspecicationsonly]
!8
!7
@1
9) Connect connector 4P
to connector
!7
!
locat
8
ed
on the side of the box.
10) Connect motor
outpu
t cord !9 of the power switch
to connector @0.
Connect motor output cord @1 to connector @2 locat­ed on the side of the box.
CE 1ø 230V
@2
Brown
Blue
Green / Yellow
(ground wire)
AC
220V-240V
Installing power switch
Connect power supply cord to the power switch.
[CEspecications]
Single phase 230V : Power supply cords :
Brown, Blue
and green/yellow (ground wire)
,
– 8 –
[Changing over the voltage between 100 V and 200 V]
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.
* The illustration below shows the PWR-T PCB.
The type of PCB differs by destination.
A
Wiring for the single-phase 100 V
(Box side)
Be sure to connect the wire between 1 and 2. If it is connected between 1-3 or 2-3, the sewing machine will be inoperative.
WHITE
BLACK
RED
GREEN/ YELLOW
1
2
3
YELLOW
WHITE BLACK
GREEN/
(Plug side)
B
Wiring for the 3-phase 200 V
(Box side)
WHITE
BLACK
RED
GREEN/ YELLOW
1
2
3
YELLOW
(Plug side)
WHITE BLACK RED
GREEN/
C
Wiring for the single-phase 200 V
(Box side)
Be sure to connect the wire between 1 and 2. If it is connected between 1-3 or 2-3, the sewing machine will be inoperative.
WHITE
BLACK
RED
GREEN/ YELLOW
1
2
3
YELLOW
WHITE BLACK
GREEN/
(Plug side)
1
By making the following two changes, the SC-922 can
be used with three different power supplies, i.e., single­phase 100 - 120 V, single-phase 200 to 240 V and 3-phase 200 to 240 V.
* Only the control box which uses PWR-T PCB can
be changed.
Replacement of the power cords
1
Changing-round of connector 1 on the PWR PCB
2
1) Turn OFF the power with the power switch after checking that the sewing machine has stopped.
2)
Draw out the power cord from the power receptacle
after checking that the power switch has been turned OFF. Then wait for 5 minutes or more.
3) Loosen the screws which are used to secure the
rear lid of the control box cover. Carefully open the
rear cover.
4) Changing procedure of the power voltage
(Caution)
If the supply power changing is carried out in a wrong manner, the control box can break. Be extremely careful when taking the supply voltage changing procedure.
A. To change over the supply voltage from 200 - 240 V
to 100 - 120 V
Change the power cord with the JUKI genuine cord
with the part number (M90355800A0). Change
the earth cord with the one with the part number (M90345800A0).
Change over supply voltage changeover connector 1
mounted on the PWR PCB with the connector for 100 V.
Connect the crimp style terminal of AC input cord to
the power plug as shown in the gure A.
B,C. To change over the supply voltage from 100 - 120
V to 200 - 240 V
Change the power cord with the JUKI genuine cord
with the part number
Change over supply voltage changeover connector 1
M90175800A0).
mounted on the PWR PCB with the connector for 200 V. Connect the crimp contact of the AC input cord to the
power plug as illustrated in Fig. B for the 3-phase power
supply or as illustrated in Fig. C for the single-phase one.
5) Before closing the rear lid of the cover, ascertain again that the relevant parts have been correctly changed without fail.
6) Close the read lid while pressing it, taking care not to
allow the wiring to be caught between the read lid of
the cover and the main body of the control box. Then,
secure the lid with the screws.
(Caution) Be sure to remove the
connector while hold­ing its locking section with your fingers. Be extremely careful not to pull the connector
Locking section
forcibly.
– 9 –
[In case of using the power switch for LA]
@1
@2
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
Connect motor output cord @1 to connector @2 locat­ed on the side of the box.
Installing power switch
Connect power supply cord to the power switch.
[JAspecications]
3-phase 220 V : Power supply cords : black,
white, red and green/yellow
(ground wire)
Single phase 120V : Power supply cords : black,
white, and green/yellow (ground
wire)
When the metallic conduit is used, be sure to change over the power cord section following the steps of pro­cedure described below.
(Caution) Be sure to carry out this procedure before installing the control box on the machine table.
Place the control box with its frame side down on
A
1
the machine table as illustrated in the sketch.
Loosen screw B in underside cover
2
to open
A
the cover.
B
Change over the cord shown in the red-line circle
3
following the steps of procedure described below.
– 10 –
F
C
D
E
Remove two screws C to remove clamping plate
4
from the main body of the control box.
D
Remove connector E while holding its locking
5
section
with your ngers.
F
F
D
G
Turn connector G to remove the cord locking
6
section.
Loosen nut H to remove the connector from
7
clamping plate D.
H
– 11 –
I
J
D
Put locknut I on the power cord and draw out
8
the cord J from inside clamping plate D.
J
I
J
I
D
Install clamping plate D back to the control box.
9
Pass power cord J through conduit K.
!0
Fix conduit K with locknuts I with clamping
!1
plate D placed between the locknuts.
K
B
A
– 12 –
Close underside cover A and secure the cover
!2
with screw B.
@3
@3
11) Make sure that the power switch is turned OFF
and insert power supply cord coming from the
power switch into the power plug socket.
(Caution) 1. Top end of power supply cord var-
ies in accordance with destination or
supply voltage. Check again the sup-
ply voltage and the voltage designat-
ed on the control box when installing
the switch.
2. Be sure to prepare power plug
conformed to the safety standard.
3. Be sure to connect the ground wire (
green / yellow).
@3

8. 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.
2
1
3
B
A
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.
– 13 –

9. Setting procedure of the machine head

(Caution) For the operation panel other than CP-18, refer to the Instruction Manual for the operation panel
to be used for the setting procedure of the machine head.
1) Refer to
of SC-922" p.25
tion setting No. 95.
543
543
6
2) The type of machine head can be
selected by pressing switch 5 (
* Refer to the "List of machine heads"
on the separate sheet or the Instruc-
tion Manual for the machine head of
your sewing machine for the type of
the machine head.
6
"III-6. Setting of functions
, and call the func-
switch
6
).
3) After selecting the type of machine
head, by pressing switch 3 (
switch
94 or 96, and the display automati-
cally changes to the contents of the
setting corresponding with the type
of machine head.
543
6
), the step proceeds to
4
– 14 –

10. Adjusting the machine head (direct-drive motor type sewing machine only)

(Caution) 1. When the slip between the marker dot on the handwheel and the concave of the cover is ex-
cessive after thread trimming, adjust the angle of the machine head by the operation below.
2. The machine head parts of which are connector to CN33 or CN43 does not need adjustment. (Refer to “II-7. Connecting the cords” p. 5.)
3
A
54
6
B
1) Simultaneously pressing switch
and switch 5, turn ON the
4
power switch.
2) is displayed (A) in the indica-
tor and the mode is changed over to
the adjustment mode.
3) Turn the pulley of the machine head
by hand until the main-shaft reference
signal is detected. At this time, the de-
gree of an angle from the main-shaft
reference signal is displayed on the
indicator B.
(The value is the reference value.)
8
543
6
7
4) In this state, align marker dot 7 on the pulley
with recess 8 on the pulley cover.
5) Press switch
adjustment work. (The value is the
reference value.)
to nish the
6
543
6
– 15 –

III. FOR THE OPERATOR

1. Operating procedure of the sewing machine

1) Press ON button 1 of the power switch to turn ON the power.
(Caution) If the power indication LED does not
light up even when turning ON the power switch, immediately turn OFF the power switch and check the voltage. In addition, in such a case as this, re-turn
12
2) For some machine head installed, the needle bar automatically rotates to its upper position if the needle bar is not there.
(Caution) WhenthepowertothesewingmachineisturnedONforthersttimeafterinstallation,itmay
require a longer time to get ready for operation since it carries out initialization procedure. In addition, be sure not to place hands or any other article under the needle since the needle bar may move when the power is turned ON.
3) When depressing front part
sewing machine rotates at the number of revolu-
tions in accordance with the depressing amount.
5
4
When the pedal is returned to the neutral posi-
tion, the sewing machine stops.
4) When lightly depressing back part 4 of the
3
pedal, the presser goes up. (PFL type only)
5) When strongly depressing back part 5 of the
pedal, thread trimming is performed.
Presser foot operation
6
by pedal Pedal depressing depth for thread trimming
6) For some types of the sewing machine heads, it is possible to program various sewing patterns, using the operation panel, such as the reverse feed stitching at sewing start and that at sewing
end. When you use CP-18 6 with your sewing
machine, refer to
the sewing pattern" p.18
use any other operation panel with your sewing machine, refer to the Instruction Manual for the respective operation panel. (The gure given il­lustrates the case of the LU-1510N-7.)
ON the power switch when 2 to 3 min­utes or more have passed after turning OFF the power switch.
of the pedal, the
3
PFL KFL
Enabled Disabled
Deep Shallow
"III-3. Operating procedure of
for details. When you
7
7) For some types of the sewing machine heads, re­verse feed is performed by pressing touch-back switch 7. (The gure given illustrates the case of the LU-1510N-7.)
2
8) When sewing is completed, press OFF button
the power switch to turn OFF the power switch after
conrming that the sewing machine has stopped.
– 16 –
2
of

2. Operation panel (CP-18)

1
2
A
1
C
D
3
switch : Used for changing over effective/ineffective of the reverse feed stitching pattern.
switch : Used for changing over effective/ineffective of the overlapped stitching pattern.
4 5 62
B
E
7
3
4
5
6
7
Indicators
LED
: Lights up when the reverse feed stitching pattern is effective.
C
switch : Used for conrming the contents of setting and for changing over effective/ineffective of
the reverse feed stitching at sewing start.
switch : Used for selecting the process (A, B, C, D) the number of stitches for which is to be
changed.
* The selected process ashes on and off.
switch : Used for changing the content of the selected display (ashing section) and for changing
over effective/ineffective of the reverse stitch at sewing end.
switch : Used for changing the content of the selected display (ashing section).
switch : Used to call the production support function or one-touch setting (by keeping the switch
held pressed for one second).
A
and
: Various pieces of information are displayed.
B
LED D : Lights up when the overlapped stitching pattern is effective.
LED E : Lights up when the production support function is displayed.
Flashes on and off when invoking the one-touch setting.
– 17 –

3. Operating procedure of the sewing pattern

(Caution) 1. For the operation panel other than CP-18, refer to the Instruction Manual for the operation
panel to be used.
2. For some machine heads, reverse-stitching pattern cannot be used.

(1) Reverse feed stitching pattern

Reverse feed stitching at sewing start and reverse feed stitching at sewing end can be separately pro-
grammed.
[Setting procedure of the reverse feed
stitching]
1) Effective/ineffective of the reverse
feed stitching pattern can be changed
over by pressing switch
When the reverse feed stitching pat­tern is rendered effective, LED
lights up, the number of stitches of
the reverse feed stitching at sewing
start is displayed on
, and the num-
A
ber of stitches of the reverse feed
stitching at sewing end is displayed
on indicator
B
.
1
A
B
C
D
2
543
6
7
Select a process (A, B, C or D) the number of stitches for which is to be changed by using switch
1
C
.
.
4
The number which is ashing on and off represents the process which is being set.
Change the number of stitches for the selected process by using switch
Press switch
to conrm the
3
change you have made. (The number of stitches that can be set is 0 to
5
and
switch
6
.
15.)
(Caution) The sewing machine cannot perform sewing when the display of the number of stitches for a
processisashingonandoff.
2) When the number of reverse feed stitches display is not ashing on and
off, every press on switch
3
C
1
A
B
changes over the reverse feed stitch­ing mode from the "reverse feed
D
stitching at sewing start," "double reverse feed stitching at sewing start" and "no reverse feed stitching at sewing start."
In addition, every time switch
2
543
6
7
is pressed, the reverse feed stitch­ing feature changes over from the reverse feed stitching at sewing end
Without reverse
stitching
Reverse
stitching
to the double reverse stitch at sewing end, then to no reverse feed stitching at sewing end, in turn.
Double reverse
stitching
5
– 18 –

(2) Overlapped stitching pattern

Overlapped stitching pattern can be programmed.
A : Number of stitches of normal stitching setting
A
B
C
B
D
C
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
(Caution) When process D is set to 5 times, the sewing is repeat-
ed as A
B → C → B → C.
[Setting procedure of the overlapped
C
1
A
B
stitching]
1) Effective/ineffective of the over-
lapped stitching pattern can be
D
changed over by pressing
2
.
switch
When the overlapped stitching pat­tern is rendered effective, LED
lights up.
2
6543
7
2) Select a process (A, B, C or D) the
number of stitches for which is to be
changed by using switch
The number which is ashing on and
off represents the process which is
being set.
3) Change the number of stitches for the selected process by using switch
5
and
switch
6
.
4) Press switch 3 to conrm the change you have made.
(The sewing machine does not run unless the setting has been conrmed by pressing switch 3.)
(Caution) The overlapped stitching pattern is carried out under automatic operation mode. Once the
pedal is depressed, the sewing machine will automatically perform sewing of the number of
overlapped stitches.
4
D
.
– 19 –

4. One-touch setting

A part of function setting items can be easily changed in the normal sewing state.
(Caution) For the setting of functions other than those covered in this part, refer to "III-6. Setting of func-
tions of SC-922" p.25.
[One-touch setting procedure]
1) Keep switch 7 held pressed
C
1
A
B
for one second to place the panel in
D
2
6543
E
7
the function setting mode.
2) Change over the item to be set by
using switch
. Then, the set value can be
4
changed by using switch
switch
6
3
or
switch
5
.
and
3) To return to the normal sewing state,
(Caution) Thesettingisconrmedbypressing switch 7.
Thread trimming function ( )
1
press switch 7.
: Thread trimming operation is not performed (solenoid output prohibition: Thread trimmer,
wiper)
: Thread trimming operation is effective.
Wiper function ( )
2
: Wiper does not operate after thread trimming : Wiper operates after thread trim-
ming
One-shot automatic stitching function (
3
:
One-shot automatic stitching function is ineffective.
  
)
:
One-shot automatic stitching is effec-
tive.
(Caution) This function is rendered effective when the material end sensor function is set. It is not pos-
sible to prohibit the one-shot operation during overlapped sewing operation. The number of revolution is the value which is set for setting No. 38.
Setting of the max. speed of stitch ( )
4
The highest speed of stitch of the machine head is set. The upper limit of the set value differs with the
type of machine head to which the SC is connected.
Setting range : 150 - Max. value [sti/min]
Material end sensor function (
5
 
) : Material end sensor function is ineffective. : Once the material end is detected, the sewing machine stops running after having sewn the
number of stitches set with 7 (
  
).
* This function is rendered effective when the material edge sensor is set with function setting No. 12.
Thread trimming function by material end sensor (
6
  
) : Automatic thread trimming function after the detection of material end is ineffective. : Once the material end is detected, the sewing machine performs thread trimming after having
sewn the number of stitches set with 7 (
  
).
* This function is rendered effective when the material edge sensor is set with function setting No. 12.
Number of stitches for material end sensor ( )
7
The number of stitches to be sewn from the detection of material end to the stop of the sewing machine
Number of stitches that can be set: 0 to 19 (stitches)
(Caution) Ifthenumberofstitchesspeciedisinadequate,thesewingmachinecanfailtostopwithinthe
preset number of stitches depending on the number of revolutions of the sewing machine.
– 20 –
Adjustment of the quantity of light of LED lamp ( )
8
Used to adjust the quantity of light of LED lamp (optional)
Setting range : 0 to 100%
Optical sensor function ( )
9
: Optical sensor function is disabled.
: After the optical sensor input, the sewing machine is stopped after the sewing of the number
of stitches set with
!2
(
).
* This function is enabled when the optical sensor is set with function setting No. 12.
Optical sensor lter function ( )
!0
: Optical sensor lter function is disabled.
: After the optical sensor detection, the input is delayed until the sewing machine has complet-
ed the sewing of the number of stitches set with
!1
(
).
* This function is enabled when the optical sensor is set with function setting No. 12.
Number of stitches for the optical sensor lter ( )
!1
Used to set the number of stitches for delaying the time at which the optical sensor input status takes effect.
Setting range: 0 to 99 stitches
* This function is enabled when the optical sensor is set with function setting No. 12.
Number of stitches to stop the optical sensor ( )
!2
Used to set the number of stitches to be sewn from the optical sensor input to the stop of the sewing machine.
Setting range: 0 to 99 stitches
* This function is enabled when the optical sensor is set with function setting No. 12.
(Caution) If a small number is set, the sewing machine may not be stopped within the set number of
stitches depending on the number of revolutions of the sewing machine.
Number of times of optical sensor detection ( )
!3
The sewing machine stops every time the optical sensor input is turned ON and carries out automatic
thread trimming when the set number of times is reached.
Setting range: 1 to 15 times
* This function is enabled when the optical sensor is set with function setting No. 12.
Pedal depressing speed limiting function ( )
!4
This function limits the pedal depressing speed at the time of the optical sensor input.
0 : The function is disabled.
1 : Fixed at the one-shot speed (function setting No. 38)
2 : Limited to the one-shot speed (function setting No. 38) 3 : When the optical sensor is enabled, the sewing machine runs under the automatic mode upon de-
press on the pedal.
* This function is enabled when the optical sensor is set with function setting No. 12.
– 21 –

5. Production support function

The production support function consists of three different functions (six different modes) such as the produc­tion volume management function, operation measuring function and bobbin counter function. Each of them
has its own production support effect. Select the appropriate function (mode) as required.
Production volume management function
■
Target No. of pcs. display mode [F100] Target/actual No. of pcs difference display mode [F200]
The target number of pieces, actual number of pieces and the difference between the target and actual
number of pieces along with the operation time are displayed to notify the operators of a delay and ad-
vance in real time. Sewing machine operators are allowed to engage sewing while constantly checking
his/her work pace. This helps raise target awareness, thereby increasing productivity. In addition, a delay
in work can be found at an early stage to enable early detection of problems and early implementation of
corrective measures.
Operation measuring function
■
Sewing machine availability rate display mode [F300] Pitch time display mode [F400] Average number of revolutions display mode [F500]
Sewing machine availability status is automatically measured and displayed on the control panel. The
data obtained can be used as basic data to perform process analyses, line arrangement and equipment
efciency checkup.
Bobbin counter function
■
Bobbin counter display mode
In order to change bobbins before the current bobbin runs out of thread, the time for replacing the bobbin
is notied.
[To display the production support modes]
1
A
B
C
D
2
(Caution) F100 to F500 modes have been factory-set to HIDE
at the time of delivery.
The bobbin counter display mode is changed over
between display/hide by setting the bobbin counter
function (function setting No. 6). (It has been facto-
ry-set to ON at the time of shipment.)
6543
7
Keep switch 7 held pressed (one
second) in the normal sewing state to
call the one-touch setting screen.
Then, press switch 1 or
switch 2 on the one-touch setting
screen to display/hide the production
support modes.
Select the mode to be displayed/hid-
den by pressing switch 3 or
switch 4. ON/OFF of the display can be
changed over by pressing switch 5
or switch 6.
To return to the normal sewing state,
press switch 7.
– 22 –
Sewing can be performed with the production support data displayed on the control panel.
[Basic operation of the production support modes]
1) When switch 7 is pressed
in the normal sewing state, LED
E
C
1
A
B
lights up to enter the production sup-
port mode.
D
2) Production support function can
be changed over by pressing
2
switch
6543
E
7
3
or
switch
4
.
3) Data attached marked with (*1) in Table 1 "Indicator A" can be changed by means of switch 5 and
switch
6
.
4) When you keep switch 6 held pressed for two seconds, indicator B and LED E flash on and
off. While they are ashing on and off, data marked with (*2) in Table 1 "Display under modes" can be
changed by pressing switch 5 and switch 6.
When you press switch
, the value marked with (*2) is conrmed and indicator
7
and LED E
B
stop ashing on and off.
5) The value with a sharp mark (*3) in Table 1 "Display of modes" can be changed only immediately after re-
setting by using switch 5 and switch 6.
6) Refer to the table "Mode resetting operation," for the resetting procedure of data.
7) To return to the normal sewing state, press switch
7
.
Data to be displayed under the respective modes are as described in the table below.
Table 1: Display of modes
Mode name Indicator
Target No. of pcs. display
mode [F100]
Target/actual No. of pcs. di fferen ce display mode
[F200]
Sewing machine availabili-
ty rate display mode [F300]
Pi tch time d isp lay mode
[F400]
Average number of revolu-
tions display mode [F500]
Bobbi n c o u n t er display mode
A
Actual number of pieces (Unit : piece)
Difference between target
number of pieces and actual number of pieces (d : piece) (*1)
oP-r Sewing machine avail-
Pi-T Pitch time in the previous
ASPd Average number of revolu-
bbn
(*1)
Target number of pieces (Unit : piece)
Target pitch time (Unit : 100 msec) (*2)
ability rate in the previous sewing (Unit : %)
sewing (Unit : 1sec)
tions in the previous sew­ing (Unit : sti/min)
Bobbin counter value (*3) -
Indicator
(*2)
B
Indicator B (when
switch 5 is pressed)
-
-
Display of average avail­ability rate of sewing machine (Unit : %)
Display of average pitch
time (Unit : 100 msec)
Display of average num­ber of revolutions (Unit : sti/min)
– 23 –
Table 2: Mode resetting operation
Mode name
Target No. of pcs.
display mode [F100]
Target/actual No.
of pcs. difference
display mode [F200]
Sewing machine
availability rate dis-
play mode [F300]
Pitch time display
mode [F400]
Average number of
revolutions display
mode [F500]
Bobbin counter dis-
play mode
Switch
Resets the actual number of pieces Resets the difference between target number of pieces and actual number of pieces Resets the actual number of pieces Resets the difference between target number of pieces and actual number of pieces Resets average availability rate of sewing machine
Resets average pitch time Resets average availability rate of sewing
Resets average number of revolutions of sewing machine.
Resets the bobbin counter value (Note that only the bobbin counter is immedi-
ately reset by pressing switch
(held pressed for 2 seconds)
5
5
Switch
Resets average availability rate of sewing machine. Resets average pitch time. Resets average number of revolutions of sewing machine.
machine. Resets average pitch time. Resets average number of revolutions of sewing machine. Resets average availability rate of sewing machine. Resets average pitch time. Resets average number of revolutions of sewing machine.
.)
(held pressed for 4 seconds)
5
-
-
-
[Detailed setting of production volume management function [F101], [F102]]
When switch 7 is held pressed (for
2
1
543
6
7E
three seconds) under the target No. of pcs.
display mode [F100] or the target/actual No. of pcs. difference display mode [F200], the
deta iled setting of t he produ ction volume management function can be carried out. Th e se ttin g st ate of t he numb er o f ti mes of
thread trimming [F101] and that of the target achievement buzzer [F102] can be changed over
by pressing switch 3 or switch 4.
Setting of production volume management function
F101 Setting of
the number of times of thread trimming
F102 Operation
to be done when the target is achieved
The number of times of thread trimming to be performed during the sewing of one piece of material is set.
0: The production volume is counted by pressing the push switch. The production volume is not The production volume is counted by pressing the push switch. The production volume is notThe production volume is counted by pressing the push switch. The production volume is not
counted by thread trimming.
1~: One is added to the actual number of pieces counter upon completion of the set number of times One is added to the actual number of pieces counter upon completion of the set number of timesOne is added to the actual number of pieces counter upon completion of the set number of times
of thread trimming.
The operation to be carried out when the actual number of pieces has reached the target number of
pieces is set. 0: No operation0: No operation No operationNo operation 1: The buzzer sounds1: The buzzer sounds The buzzer soundsThe buzzer sounds 2: The sewing machine will not run even if the pedal is depressed.2: The sewing machine will not run even if the pedal is depressed. The sewing machine will not run even if the pedal is depressed.The sewing machine will not run even if the pedal is depressed.
The actual number of pieces counter is reset to zero (0) by keeping switch 5 held pressed when
the sewing machine is forcedly at rest. Then, the operation of the sewing machine is enabled again.
– 24 –

6. Setting of functions of SC-922

Functions can be selected and specied.
(Caution) For the function setting procedure of any operation panel other than CP-18, refer to the In-
struction Manual for the operation panel to be used.
1) Turn ON the power with
switch
held pressed.
7
(The item which has been changed during the previous work is dis­played.)
* If the screen display does not
change, re-carry out operation de­scribed in step 1).
(Caution)
Be sure to re-turn ON the power switch when one or more seconds have passed after turning it OFF. If the power switch is re-turned ON immedi­ately after turning it OFF, the sewing machine may fail to operate normally. In such a case, be sure to turn ON the power switch again properly.
2) To move the setting No. forward,
press switch
. To move the
4
D
D
C
C
A
543
6
E
A
B
7
B
setting No. backward, press
.
3
switch is touched).
/
C
switch
(Caution)
543
A
6
E
7
B
If the setting No. is moved forward (or backward), the previous (or subsequent) content of the setting
isconrmed.Becarefulwhenthe
content of a setting is changed (when
the
Example) Changing the maximum num-
ber of revolutions (setting No. 96)
D
Press switch
to call setting No. "96."
4
3
or
The current set value is displayed
on indicator
543
6
E
7
Press switch
B
.
to change the
5
set value to "2500".
* The content of setting of the setting No. returns to the initial value by pressing switch 5 and
switch 6 simultaneously.
switch
3) After completion of the changing procedure, press switch 3 or switch 4 to conrm the up-
dated value.
(Caution) If the power is turned OFF before carrying out this procedure, the changed content is not up-
dated. When
ting No. When switch
setting No. After completion of the operation, the machine is returned to the normal sewing state by turning OFF the power and re-turning it ON.
switch 3 is pressed, the display on the panel changes to the previous set-
is pressed, the display on the panel changes to the subsequent
4
– 25 –
– 26 –
1
A
B
In the case the screen shown at the
left is displayed by the operation de-
scribed in 1) on the previous page, the
screen is locked by the password.
Refer to the Engineer's Manual for
how to set and reset the password.
2
6543
7

7. Function setting list

No
1 Soft start
2
3
4 Number of
5
6
7 Unit of bobbin
*
8 Number of
*
9 Thread trimming
10
11
12
13 Function of
*
14 Sewing counter Counting function of sewing (number of completion of process)
15
21
Item Description
function
Material end sensor function
Thread trimming function by material end sensor
stitches for material end sensor
Flicker reducing function
Bobbin thread counting function
thread counting down
rotation of reverse feed stitching
prohibiting function
Setting of needle bar stop position when the sewing machine stops.
Operation con-
rmation sound
for operation panel
Optinal switch function selection
prohibiting start of the sewing machine by bobbin thread counter
Thread wiping function after thread trimming
Function of neutral presser lifting
The number of stitches to be sewn at a low speed when the soft­start function is used at the start of sewing.
0 : The function is not selected.
1 to 9 : The number of stitches to be sewn under the soft-
start mode.
Material end sensor function (to be used only with CP-18).
0 : Material end detection function is not operative.
1 : After detectin g material end, the specified num ber of
stitches (No. 4) will be sewn, and the sewing machine will stop.
Thread trimming function by material end sensor (to be used
only with CP-18).
0 : Automatic thread trimming function after detection of ma-
terial end is not operative.
1 : After detecting material end, the spe cified number of
stitches (No. 4) will be sewn, and the sewing machine will stop and perform automatic thread trimming.
Number of stitches for material end sensor (to be used only with
CP-18).
Number of stitches from detection of material end to stop of the sewing machine.
Flicker reducing function
0 : Flicker reducing function is not operative.
1 : Flicker reducing function is effective
Bobbin thread counting function
0 : Bobbin thread counting function is not operative.
1 : Bobbin thread counting function is operative.
Unit of bobbin thread counting down
0 : 1 Count/10 stitches
1 : 1 Count/15 stitches
2 : 1 Count/20 stitches
3 : 1 Count/thread trimming
Sewing speed of reverse feed stitching
Thread trimming prohibiting function
0 : Thread trimming is effective.
1 : Thread trimming is prohibited.
(Output of solenoid is prohibited. : Thread trimmer and wiper)
Position of needle bar is specified when the sewing machine stops.
0: The needle bar stops at its lower position.
1: The needle bar stops at its upper position.
Operation conrmation sound for operation panel
0 : Operation conrmation sound is not generated
1 : Operation conrmation sound is generated.
Switching of function of optional switch. Refer to
tions” p. 33.
Function of prohibiting start of the sewing machine by bobbin thread counting
Thread wiping operation after thread trimming is specied.
Function of needle up/down compensating switch on the operation panel can be changed.
(This function is disabled when No. 93 Needle up/down switch additional function setting is "2.")
“III-8. Detailed explanation of selection of func-
0 : When counting is out (-1 or less) Function of prohibiting
start of the sewing machine is not operative.
1 : When counting is out (-1 or less) Function of prohibiting
start of the sewing machine after thread trimming is op­erative.
2 : When counting is out (-1 or less), the sewing machine
stops once. Function of prohibiting start of the sewing machine after thread trimming is operative.
0 : Sewing counter function is not operative.
1 : Sewing counter function is operative. (Every time thread
trimming is performed)
2 : With the sewing counting switch input function
0 : Thread wiping is not carried out after thread trimming
1 : Thread wiping is carried out after thread trimming
0 : Needle up/down compensation
1 : Provided with selectable function of automatic presser
foot lifting at neutral position of pedal
2 : Provided with the function of automatic presser foot lifting
at neutral position of pedal when enabled and added with the function of conducting alternate operation by depress­ing the back part of pedal
(to be used only with CP-18)
Setting range
0 to 9
(Stitches)
0 to 19
(Stitches)
0 to 3
150 to 3,000
(sti/min)
.
0 to 2
0 to 2
0 to 2
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
Indication of function setting
1 1
2 0
3 0
4 5
5 0
6 1
7
8 6 0 0
9 0
1 0 0
1 1 1
1 2o P T _
1 3 0
1 4 1
1 5 0
2 1 0
Ref. page
33
33
33
33
33
33
0
33
33
33
34
38
38
* Do not change the set values with asterisk (
*
) mark as they are functions for maintenance. If the standard set value set at the time of delivery is changed, it is in danger of causing the machine to be broken or the performance to be deteriorated. If it is necessary to change the set value, please purchase the Engineer’s Manual and follow the instructions.
– 27 –
– 28 –
No
22 Needle up/down
25 Thread trimming
29 Setting of one-
30 Function of
31
32 Effective
33 Thread trimming
35 Number of
*
36 Number of
*
37 Number of
38 One-shot speed One-shot speed (The max. value depends on the number of ro-
39 Pedal stroke
*
40 Low speed
*
41 Starting position
*
42 Starting position
*
43
*
44
*
45
*
47
48
*
49
Item Description
correction switch changeover function
operation after turning the handwheel by han
touch type reverse feed solenoid pull-in time
reverse feed stitching on the way
Number of stitches of reverse feed stitching on the way
condition of reverse feed stitching on the way when the sewing machine is stopping.
function by reverse feed stitching on the way
rotation at a low speed
rotation of thread trimming
rotation of soft­start
at the start of rotation
section of pedal
of lifting presser foot by pedal
of lowering presser foot
Pedal stroke 2 for starting thread trimming
Pedal stroke for reaching the
maximum number
of rotation
Compensation of
neutral point of the pedal
Auto-lifter selecting function
Pedal stroke 1 for starting thread trimming
Lowering time of presser foot
Function of the needle up/down correction switch is changed over.
0 : Needle up/down compensation 1 : One stitch compensation
Thread trimming operation after moving the needle away from its upper or lower position by turning the handwheel by hand is
specied.
0 : Thread trimming operation is carried out after turning the
handwheel by hand
1 : Thread trimming operation is not carried out after turning
the handwheel by hand
This function sets the suction time of initial motion of back-tack solenoid.
50 ms to 500 ms
Function of reverse feed stitching on the way
0 : Normal one-touch type reverse feed stitching function 1 : Function of reverse feed stitching on the way is operative.
Number of stitches of reverse feed stitching on the way.
Effective condition of reverse feed stitching on the way
0 : Function is not operative when the sewing machine stops. 1 : Function is operative when the sewing machine stops.
Thread trimming function by reverse feed stitching on the way
0 : Automatic thread trimming function after completion of
reverse feed stitching on the way is not operative.
1 : Automatic thread trimming after completion of reverse
feed stitching on the way is performed.
Lowest speed by pedal (The MAX value differs by machine head.)
Thread trimming speed (The MAX value differs by machine head.)
Sewing speed at the start of sewing (soft-start) (The MAX value differs by machine head.)
tation of the sewing machine head.)
Position where the sewing machine starts rotating from pedal neutral position (Pedal stroke)
Position where the sewing machine starts accelerating from pedal neutral position (Pedal stroke)
Position where the cloth presser starts lifting from pedal neutral position (Pedal stroke)
Starting position of lowering presser foot Stroke from the neutral position
Position 2 where the thread trimming starts from pedal neutral position (When the function of lifting presser foot by pedal is pro­vided.) (Pedal stroke)
(Effective only when Item No. 50 is set at 1.)
Position where the sewing machine reaches its highest sewing speed from pedal neutral position (Pedal stroke) 10 to 150
Compensation value of the pedal sensor
Limitation time of waiting for lifting solenoid type auto-lifter de­vice
Position where thread trimming starts from pedal neutral position (Standard pedal) (Pedal stroke)
(Effective only when Item No. 50 is set at 0.)
Loweri ng time of pre sser fo ot after the pedal has been de­pressed. (Start of rotation of the sewing machine is delayed during this time.)
Setting range
0/1
0/1
50 to 500
(ms)
0/1
0 to 19
(Stitches)
0/1
0/1
150 to MAX
(sti/min)
100 to MAX
(sti/min)
100 to MAX
(sti/min)
150 to MAX
(sti/min)
10 to 50
(0.1 mm)
10 to 100
(0.1 mm)
– 60 to –10
(0.1mm)
8 to 50
(0.1 mm)
– 60 to –10
(0.1 mm)
(0.1 mm)
–15 to 15
10 to 600
(sec)
– 60 to – 10
(0.1 mm)
0 to 500
(ms)
Indication of function setting
2 2
2 5
2 9
3 0
3 1
3 2
3 3
3 5
3 6
3 7
2 5 0
1 7 0
1 7 0
1 7 0
3 81 5 0 0
3 9
4 0
4 1
4 2
4 3
4 4
4 5
4 7
4 8
4 9
3 0
6 0
– 2 1
1 0
– 5 1
1 5 0
6 0
– 3 5
1 4 0
Ref. page
38
0
1
38
39
0
39
4
39
0
39
0
33
39
0
40
42
* Do not change the set values with asterisk (*) mark as they are functions for maintenance. If the standard set value set at the
time of delivery is changed, it is in danger of causing the machine to be broken or the performance to be deteriorated.
If it is necessary to change the set value, please purchase the Engineer’s Manual and follow the instructions.
No
50
51 Compensation of
52 Compensation of
53 Compensation
55
56
58
59
60
61
64
70
71
72
73
74
*
Item Description
Pedal
specication
solenoid-on timing of reverse feed stitching at the start of sewing
solenoid-off timing of reverse feed stitching at the start of sewing
of solenoid-off timing of reverse feed stitching at the end of sewing
Foot lift after thread trimming
Reverse revolution to lift the needle after thread trimming
Needle bar home position retaining function
Function of Auto/ Manual change­over of reverse feed stitching at the start of sewing
Function of stop immediately after reverse feed stitching at the start of sewing
Needle bar home position retaining time
Change-
over speed of condensation
stitch or EBT (end
back tack) Function of soft-
down of presser foot
Double reverse
feed stitching function
Sewing machine startup selecting function
Retry function
With/without
thread trimmer for MF
Type of pedal sensor is selected.
0 : KFL 1 : PFL
Refer to
“III-10.Selectionofthepedalspecications”p.47.
Compensation of starting the solenoid for reverse feed stitching
when reverse feed stitching at the start of sewing is performed.
Compensation of releasing the solenoid for reverse feed stitch­ing when reverse feed stitching at the start of sewing is per­formed.
Compensation of releasing the solenoid for reverse feed stitch­ing when reverse feed stitching at the end of sewing is per­formed.
Function of lifting presser foot at the time of (after) thread trimming
0 : Not provided with the function of automatic lifting of work-
clamp after thread trimming
1 : Provided with the function of lifting presser foot automati-
cally after thread trimming
Function of reverse revolution to lift the needle at the time of (af­ter) thread trimming
0 : Not provided with the function of reverse revolution to lift
the needle after thread trimming
1 : Provided with the function of reverse revolution to lift the
needle after thread trimming
Needle bar home position retaining function
0 : Needle bar home position retaining function is disabled 1 : Needle bar home position retaining function is enabled
(holding force is weak.)
2 : Needle bar home position retaining function is enabled
(holding force is medium.)
3 : Needle bar home position retaining function is enabled
(holding force is strong.)
This function ca n specify the sew ing speed of reverse feed stitching at the start of sewing.
0 : The speed will depend on the manual operation by pedal, etc. 1 :
The speed will depend on the specied reverse feed stitching speed (No. 8).
Function at the time of completion of reverse feed stitching at the start of sewing
0 : Not provided with the function of temporary stop of the
sewing machine at the time of completion of reverse feed stitching at the start of sewing
1 : Provided with the function of temporary stop of the sew-
ing machine at the time of completion of reverse feed stitching at the start of sewing.
Sets the period of time in which the needle bar is retained at its home position after the sewing machine has stopped.
0 : The function is disabled (the needle bar home position
retaining function is enabled at all times)
100 - 3000 ms
Initial speed when starting condensation stitch or EBT
Presser foot is slowly lowered.
0 : Presser foot is rapidly lowered. 1 : Presser foot is slowly lowered.
Effective/ineffective of double reverse feed stitching is changed over. (to be used only with CP-18)
0 : Ineffective
1 : Effective
Current limit at the startup of sewing machine is specied.
0 : Normal (Current limit is applied during startup) 1 : Rapid (Current limit is not applied during startup)
This function is used when needle cannot pierce materials .
0 : Retry function is not provided. 1 - 10 : Retry function is provided.
1: Needle-bar returning force before operating the retry function: 1 (small) - 10 (large)
With/without thread trimmer for MF is selected.
0 : Not provided with the tread trimmer 1 : Provided with the thread trimmer
Setting range
0/1
– 36 to 36
(10°)
– 36 to 36
(10°)
– 36 to 36
(10°)
0/1
0/1
0 to 3
0/1
0/1
0 : Disabled
100 to 3000
(ms)
0 to 250 (sti/min)
0/1
0/1
0/1
0 to 10
0/1
Indication of function setting
5 0 1
5 1 1 1
5 2 1 3
5 3 4
5 5 1
5 6 1
5 8 0
5 9 1
6 0 0
6 1 0
6 4 5 0
7 0 0
7 1 1
7 2 1
7 3 1
7 4 0
Ref. page
40
40
40
40
41
41
41
41
41
42
42
* Do not change the set values with asterisk (*) mark as they are functions for maintenance. If the standard set value set at the
time of delivery is changed, it is in danger of causing the machine to be broken or the performance to be deteriorated. If it is necessary to change the set value, please purchase the Engineer’s Manual and follow the instructions.
– 29 –
– 30 –
No
76
84
*
87
Item Description
One-shot function
Initial motion suction time of presser foot lifting solenoid
Function of pedal curve selection
One-shot operation up to the material end is specied. (to be used only with CP-18)
0 : One-shot operation is not performed. 1 : One-shot operation is performed.
Suction motion time of presser foot lifting solenoid
Pedal curve is selected. (Improving pedal inching operation)
Number of rotations
0
Setting range
0/1
50 to 500
(ms)
2
1
Pedal stroke
0/1/2
Indication of function setting
7 6 0
8 4 2 5 0
8 7 0
Ref. page
33
42
42
Initial sewing-
90
machine travel function
Function of prohibiting
91
compensation operation after turning handwheel by hand
Function of
92
reducing speed of reverse feed stitching at the start of sewing
Function added to
93
needle up/down compensating switch
Continuous +
94
One-shot nonstop function
Head selection
95
function
Max. number of
96
rotation setting
Needle cooler
103
output OFF delay time
LED lamp
109
dimmer setting
Main shaft
120
reference angle compensation
Up position
121
starting angle compensation
DOWN position
122
starting angle compensation
Setting of
124
energy-saving function during standby
Alternate
144
up/down output cancelling stitch number setting
Alternate
146
up/down output selection after thread trimming
The function for automatically moving the sewing machine to a
specied position immediately after turning the power ON.
0 : The function is disabled 1 : Sewing machine is initially stopped with its needle up 2 : Sewing machine is initially rotated in the reverse direction
and stopped with its needle up
It is effective in combination with the machine head provided with tension release function.
0 : Tension release function is ineffective. 1 : Tension release function is effective.
Function to reduce speed at the time of completion of reverse feed stitching at the start of sewing.
0 : Speed is not reduced. 1 : Speed is reduced.
Operation of needle up/down compensating switch is changed after turning ON the power or thread trimming.
0 : Normal (needle up/down compensating stitching only) 1 :
One stitch compensating stitching is performed only when aforementioned changeover is made. (Upper stop
stop) 2 : Needle-down function operates after thread trimming. 3 : Function of needle-down with operation of 2 plus presser
lowering operation and needle-up with thread trimming
operation is added.
The function that does not stop the sewing machine by com­bining continuous stitching with one-shot stitching using the program sewing function which is available in the IP operation panel.
0 : Normal (The sewing machine stops when a step is com-
pleted.) 1 : The sewing machine does not stop when a step is com-
pleted and proceeds to next step.
Machine head to be used is selected.
(When the machine head is changed, each setting item is changed
to the initial value of the machine head.)
Max. number of rotation of the sewing machine head can be set.
(The MAX value differs by machine head.)
Delay time from the stop of sewing machine to the output OFF is specied using the needle cooler output function.
Changes the output voltage of the machine head LED (5 V out-
put in the case 100 % is set)
Main shaft reference angle is compensated.
Angle to detect UP position starting is compensated.
Angle to detect DOWN position starting is compensated.
Setting to reduce the power consumption while the sewing ma­chine is in standby state
0 : Energy-saving mode is ineffective 1 : Energy-saving mode is effective
Sets the number of stitches to be sewn before the alternate up/ down output is automatically cancelled
0 : Disabled
1 - 30 stitches
Selects the status of the alternate up/down output to be forcibly output after thread trimming
0 : Output status is remained 1 : OFF is output 2 : ON is output
upper
0 to 2
0/1
0/1
0 to 3
0/1
150 to MAX
(sti/min)
100 to
2000 (ms)
0 to 100
(%)
–60 to 60
(°)
–15 to 15
(°)
–15 to 15
(°)
0/1
0 to 30to 30
(Stitches)
0 to 2to 2
9 0 0
9 1 1
9 2 0
9 3 0
9 4 0
9 5L U 5 1
9 6 3 0 0 0
1 0 3 5 0 0
1 0 9 1 0 0
1 2 0 0
1 2 1 0
1 2 2 0
1 2 4 0
1 4 4 0
1 4 6 0
42
42
43
43
43
43
43
43
43
43
43
* Do not change the set values with asterisk (*) mark as they are functions for maintenance. If the standard set value set at the
time of delivery is changed, it is in danger of causing the machine to be broken or the performance to be deteriorated. If it is necessary to change the set value, please purchase the Engineer’s Manual and follow the instructions.
No
Alternate
147
up/down initial output
2-pitch (2-stitch
148
length) output during reverse feed stitching at beginning/end of sewing
2-pitch inverted
149
output during alternate up/ down output
2-pitch initial
150
output
Pause and
151
stitch alignment function
Condensation
154
stitching function for beginning/end of sewing
Setting of the
155
position of carrying out automatic presser foot lifting at neutral position of pedal
Needle thread
156
grasping function
Condensation
158
stitching function during thread trimming
Alternate
163
up/down speed limitation enable
Standing
164
operation pedal input high­speed switch function
With/without
167
bobbin thread remaining amount detection
Bobbin thread
168
remaining amount detecting function
Thread tension
174
changeover function
Item Description
Sets the status of the alternate up/down output upon turning the power on to either ON or OFF
0: The previous power-off state is restored 1: OFF is output 2: ON is output
Carries out 2-pitch output during reverse feed stitching at the
beginning and end of sewing
0 : The function is in the OFF state 1 : The function is in the ON state
Sets the inverted output of 2-pitch output is carried out or not in synchronism with alternate up/down output
0 : The function is in the OFF state 1 : The function is in the ON state
Selects the status of the 2-pitch output upon turning the power on between ON and OFF
0 : The previous power-off state is restored 1 : OFF is output 2 : ON is output
Temporarily stops at every corner of the sewing pattern at the beginning and end of sewing and during overlapped stitching
0 : The function is in the OFF state 1 : The function is in the ON state
Enabled when the SC-922 is used in combination with the ma­chine head provided with condensation stitching function for thread trimming leaving shorter thread on the material The sewing machine performs condensation stitching at the be­ginning and end of sewing (Condensation stitching is performed instead of automatic re­verse feed stitching.)
0 : The function is in the OFF state 1 : The function is in the ON state
Automatic presser foot lifting at neutral position of pedal is car­ried out only when the sewing machine stops with its needle down.
0 : The function of automatic presser foot lifting at neutral po-
sition of pedal is enabled at all times 1 : The automatic presser foot lifting at neutral position of
pedal is only enabled when the sewing machine stops
with its needle down
(Disabled when No. 93 Needle up/down correction switch add­ing function setting is "2.")
Enabled when the SC-922 is used in combination with the ma­chine head provided with the needle thread grasping function Selects the status of the needle thread grasping function
0 : ON/OFF with the operation enabling switch
1 : Disables the needle thread grasping function
2 : Forcibly enables the needle thread grasping function
Enabled when the SC-922 is used in combination with the ma­chine head provided with condensation stitch function for thread trimming leaving shorter thread on the material Selects whether or not the condensation stitch for thread trim­ming leaving shorter thread on the material is output
0 : The function is in the OFF state 1 : The function is in the ON state
Limits the maximum sewing speed by means of the alternate
up/down amount
Refer to the Engineer's Manual for details.
Runs the sewing machine at a high speed whenever the stand-
ing operation pedal input exists
0 : The function is in the OFF state 1 : The function is in the ON state
Bobbin thread remaining amount detecting device is used. However, the bobbin thread counter operates normally regard­less of the setting of the bobbin thread remaining amount detec­tion.
0 : The function is in the OFF state 1 : The function is in the ON state
Sets the function of the bobbin thread remaining amount detect­ing device Carry out setting referring to the Instruction Manual for the bob­bin thread remaining amount detecting device.
Tension release function on one side is turned ON/OFF in con­junction with other output.
0 : Disabled
1 : Turned OFF when alternate up/down output is turned ON,
and turned ON when alternate up/down output is turned
OFF 2 : Turned OFF upon alternate up/down output, and turned
ON upon thread trimming
Setting range
0 to 2to 2
0/1
0/1
0 to 2to 2
0/1
0/1
0/1
0 to 2to 2
0/1
0/1
0/1
0/1
0 to 2to 2
0 to 2to 22
Indication of function setting
1 4 7 0
1 4 8 0
1 4 9 0
1 5 0 0
1 5 1 0
1 5 4 0
1 5 5 0
1 5 6 0
1 5 8 0
1 6 3 0
1 6 4 0
1 6 7 1
1 6 8 0
1 7 4 0
Ref. page
44
44
44
44
44
44
38
44
45
45
* Do not change the set values with asterisk (
*
) mark as they are functions for maintenance. If the standard set value set at the time of delivery is changed, it is in danger of causing the machine to be broken or the performance to be deteriorated. If it is necessary to change the set value, please purchase the Engineer’s Manual and follow the instructions.
– 31 –
– 32 –
No
178 Output of
179 Time limit for
185
194 Presser lifter
235 Optical sensor
236
237 Number of
238 Number of
239
242 Pedal
247
251
252 Correction
253 Correction
254 Correction
Item Description
alternating vertical movement of walking foot and presser foot during reverse feed stitching at the beginning of sewing
needle bar home position retaining
Tension release ON retaining function
and thread release interlocking function
function
Optical sensor
lter function
stitches for the optical sensor
lter
stitches for stopping the sewing machine after optical sensor input
Number of times of optical sensor detection
depressing speed limiting function
Optical sensor thread-trimming prohibiting function
Optical sensor input logic changeover
of reverse stitching ON at start (when the number of stitches is set to one)
of reverse stitching OFF at start (when the number of stitches is set to one)
of reverse stitching OFF at end (when the number of stitches is set to one)
ON signal for the alternating vertical movement of walking foot and presser foot during reverse feed stitching at the beginning of sewing is output.
Length of time during which the needle bar is retained at its home position (No limit when 0 is set)
Length of time during which the tension release control is re­tained
This function actuates the thread releasing mechanism simulta­neously with turning ON/OFF of the presser lifter. This function can be used for the machine head on which the presser lifter and the thread releasing mechanism do not work together.
Uses the optical sensor function
Sets enable/disable of the optical sensor lter function (used in
combination with No. 237)
Sets the number of stitches for ltering the optical sensor input
Sets the number of stitches to be sewn from the optical sensor input to the stop of the sewing machine
The sewing machine stops every time the optical sensor input is turned ON and carries out automatic thread trimming when the set number is reached.
0 : The function is disabled.
1 : Fixed at the one-shot speed
2 : Limited to the one-shot speed
3 : When the optical sensor is enabled, the sewing machine
runs under the aut omatic mode upon depress on the pedal.
0 : Thread trimming is enabled 1 : Thread trimming is prohibited
Input logic of the optical sensor
0 : OR input
1 : AND input
The correction angle of the reverse stitching solenoid activation, when the reverse stitching is carried out at the beginning of sew­ing, is set. This angle is used in the case A process is set to one stitch.
The correction angle of the reverse stitching solenoid release, when the reverse stitching is carried out at the beginning of sew­ing, is set. This angle is used in the case B process is set to one stitch.
The correction angle of the reverse stitching solenoid release, when the reverse stitching is carried out at the end of sewing, is set.
This angle is used in the case D process is set to one stitch.
Setting range
0/1
0 to 10
(min)
1 to 10
(min)
0/1
0/1
0/1
0 to 99
(Stitches)
0 to 99
(Stitches)
1 to 15 (times)
0 to 3
0/1
0/1
0 to 36
(10°)
0 to 36
(10°)
0 to 36
(10°)
Indication of function setting
1 7 8 0
1 7 9 0
1 8 5 3
1 9 4 0
2 3 5 0
2 3 6 0
2 3 7 0
2 3 8 7
2 3 9 1
2 4 2 0
2 4 7 0
2 5 1 0
2 5 2 2 5
2 5 3 2 5
2 5 4 2 5
Ref. page
41
45
45
45
45
45
45
45
45
40
40
40
* Do not change the set values with asterisk (
*
) mark as they are functions for maintenance. If the standard set value set at the time of delivery is changed, it is in danger of causing the machine to be broken or the performance to be deteriorated. If it is necessary to change the set value, please purchase the Engineer’s Manual and follow the instructions.

8. Detailed explanation of selection of functions

Selection of the soft-start function (Function setting No. 1 and 37)
1
The needle thread may fail to interlace with the bobbin thread at the start of sewing when the stitching pitch (stitch length) is small or a thick needle is used. To solve such problem, this function (called “soft-start”) is used to limit the sewing speed, thereby assuring successful formation of the starting stitches.
1 1
The sewing speed limited by the soft-start function can be changed. (Function setting No. 37)
3 7 71 0
Material edge sensor function (function setting Nos. 2 - 4, 76)
2
This function is enabled when the material edge sensor is installed on the sewing machine. Refer to
(Caution) This function is rendered effective only with the CP-18.
Flicker reducing function (Function setting No. 5)
3
"III-18. How to connect the material edge sensor" p.54
The function reduces ickering of the hand lamp at the start of sewing.
5 0
(Caution)Whenthe icker reducing functionisset at the"Flickerreducing function is effective,"the
startup speed of the sewing machine decreases.
0 : The function is not selected. 1 to 9 : The number of stitches to be sewn under the soft-start mode.
Data setting range
100 to MAX sti/min < 10 sti/min >
(The MAX value varies with the machine head.)
for details.
0 : Flicker reducing function is ineffective
1 : Flicker reducing function is effective
Bobbin thread counting function (Function setting No. 6)
4
When the control panel is used, the function subtracts from the predetermined value and indicates the used
amount of bobbin thread. For the details, refer to the instruction manual for the control panel.
6 1
0 : Bobbin thread counting function is not operative.
1 : Bobbin thread counting function is operative.
(Caution) If “0” is set, the LCD indication on the control panel will go out and the bobbin thread count-
ing function will be invalid.
Thread trimming prohibiting function (Function setting No. 9)
5
This function turns OFF thread trimming solenoid output and wiper solenoid output when thread trimming is
actuated.
(Caution) This function is rendered effective only with the CP-18.
By this function, separate sewing material can be spliced and sewn without trimming thread.
9 0
0 : off Thread trimming is operative. (thread can be trimmed). 1 : on Thread trimming is inoperative. (thread can not be trimmed).
Setting of the needle bar stop position when the sewing machine stops (Function setting No. 10)
6
The position of the needle bar when the pedal is in its neutral position is specied.
1 0 0
0 : Down The needle bar stops in the lowest position of its stroke.
1 : Up The needle bar stops in the highest position of its stroke.
(Caution) If the stop position of the needle bar is set to the highest position, the thread trimming action
will be taken after the needle bar comes down once to the lowest position.
Panel operating sound (Function setting No. 11)
7
Whether the panel operation generates sound or not can be selected.
1 1 1
0 : off Operation conrmation sound is not generated 1 : on Operation conrmation sound is generated.
– 33 –
– 34 –
Selection of the optional input/output function (Function setting No. 12)
8
1
A
B
2
1 2 TPo _
543
Select function setting No. 12 with the operating procedure of function set-
6
7
ting procedures 1) through 3).
TP _ nE_ do
Select the items of "End", "in" and "oUT" with keys 5 and 6.
_ni _
TUo _
0i 1 ** *
3i 2
0o 1 ** *
3o 2
[When "in" is selected]
The input function setting connector display number is displayed on indicator A. Specify the display number with key the displayed number by means of key played alternately on indicator B. In the case "- - - -" is displayed, the function code and the abbreviation are automatically determined according to the selected machine head. (Refer
to the appendix for the relation between display numbers and connector pins assignment.)
or
. Specify the connector pin function corresponding to
3
4
or
. Function code and abbreviation are dis-
5
6
[When "oUT" is selected]
The output function setting connector display number is displayed on indicator A. Specify the display number with key the displayed number by means of key played alternately on indicator B. In the case "- - - -" is displayed, the function code and the abbreviation are automatically determined according to the selected machine head. (Refer
to the appendix for the relation between display numbers and connector pins assignment.)
or
. Specify the connector pin function corresponding to
3
4
or
. Function code and abbreviation are dis-
5
6
* Example) Setting the thread trimming function for the display No. i01 (CN44-4) of the input function setting
connector.
2 TPo _
1
1. Select function setting No. 12 with the operating procedure of function
setting procedures 1) through 3).
TPo _
_ni _
2. Select the item of "in" with keys
and 6.
5
0i 1 on P
0i 1 ST W
Lighting alternately
L 4
0i 1
L 4
H 4
0i 2 on P
TPo _
i n
nE d
3. Select i01 with key
4. Select the thread trimming function, "TSW" with keys
4
.
and 6.
5
5. Determine the thread trimming function, "TSW" with key
6. Set ACTIVE of the signal with keys
and 6.
5
4
.
Set the display to "L" when the signal is "Low" and performing thread
trimming, and set the display to "H" when the signal is "High" and per-
forming thread trimming.
7. Determine the aforementioned function with key
8. Finish the optional input with key
9.
Select the item of "End" with keys 5 and 6 to return to the function setting mode.
4
.
4
.
Input function list
Function code
0 noP No function (Standard setting)
1 HS
2 bHS Back compensating stitching
3 EbT Function of canceling once reverse feed
4 TSW Thread trimming function This function is actuated as the thread trimming switch.
5 FL Presser foot lifting function This function is actuated as the foot lifter switch.
6 oHS One stitch compensating stitching Every time the switch is pressed, one stitch stitching operation is executed. 7 SEbT
8 PnFL
9 Ed Material edge sensor input
10 LinH Function of prohibiting depressing front
11 TinH Function of prohibiting thread trimming
12 LSSW Low speed command input This function works as low speed switch for standing sewing machine. 13 HSSW High speed command input This function works as high speed switch for standing sewing machine. 14 USW Needle lifting function 15 bT Reverse feed stitching switch input Reverse feed stitching is output as long as the switch is held pressed. 16 SoFT Soft start switch input The speed of stitch is limited to the predetermined soft-start speed as long
17 oSSW One-shot speed command switch input This function works as one-shot speed command as long as the switch is
18 bKoS Backward one-shot speed command
19 SFSW Safety switch input Rotation is prohibited. 20 MES Thread trimming safety switch input It operates as an input signal of the thread trimmer safety switch. 21 AUbT Automatic reverse feed stitching cancella-
22 CUnT 23 rSW Reverse-rotation needle-up function When the switch is pressed while the sewing machine is at rest with its
24 vErT
25 vSW
26
27 2PSW 2-pitch momentary switch input 2-pitch is output as long as the switch is held pressed
28 bbCG Bobbin replacement switch input Startup of the sewing machine is disabled when the switch is turned ON
29 CGUd Center guide switch input Center guide output is inverted every time the switch is pressed. 30 TCSW 31 ALFL Presser lifter alternate switch input Presser lifter output is inverted every time the switch is pressed. 32 CAbT S/EBT 1-time cancellation input Reverse feed stitching at the beginning or end of sewing, to be performed
33 SToP Stop switch input The sewing machine is stopped and the operation is prohibited as long as
34 bCGP Bobbin replacement P-switch input When the switch is turned ON for the rst time, the sewing machine stops
35 Tiin Tsw command prohibition input Thread trimming command is prohibited. 36 USTP Lsw command prohibition/needle-up stop
37 Abin Reverse-feed sewing prohibiting function Prohibits reverse-feed sewing at the beginning/end of sewing as long as
38 FSTP Forced stop switch input Immediately brings the sewing machine into the forced stop state and
39 CUSr Custom-output reset input Clears custom outputs 1 to 3 40 LGTS 41 CTrS Counter reset Fullls the same function as the counter reset switch on the operation
42 rbob General-purpose remaining-amount de-
43 TL2
44 ALTC Thread grasping alternate input Changes over enable/disable of the thread grasping function every time
45 TrMd Thread trimming prohibition input Every time the switch is pressed, the thread trimming prohibition status is
46 bTP
47 FLTL Presser lifter and thread release interlock
Abbreviation Function item Remarks
Needle up / down compensating stitching
stitching at the end of sewing
Function of cancel of reverse feed stitch­ing at start/end Presser lifting function when pedal is neutral
part of pedal
output
switch input
tion/addition switch Sewing counter input
Alternate up/down amount conversion panel switch input Alternate up/down amount conversion knee switch input
2PiT 2-pitch alternate input 2-pitch output is inverted every time the switch is pressed
Thread grasping switch input Thread grasping function is enabled as long as the switch is held pressed.
input
Optical sensor input Operates as the input signal of the optical sensor
tection input Tension changeover switch input Changes over the thread release state on one side every time the switch
Fastening stitch alignment changeover input
changeover input
Every time the switch is pressed, normal feed stitching by half stitch is
performed. (Same operation as that of up / down compensating stitching switch on the panel.) Reverse feed stitching is performed at low speed while the switch is held pressing. (It is effective only when a constant-dimension sewing is selected.) By depressing the back part of the pedal after pressing the switch, opera­tion of reverse feed stitching is canceled once.
By operating the optional switch, ineffective/effective can be alternately changed over.
Every time the switch is pressed, the function whether automatically lifting
the presser foot when the pedal is neutral or not can be selected. This function works as the input signal of material edge sensor. Rotation by pedal is prohibited.
Output of thread trimming is prohibited.
UP stop motion is performed when switch is pressed during DOWN stop.
as the switch is held pressed.
pressed. Reverse feed stitching is performed in accordance with the one-shot speed command as long as the switch is held pressed.
Every time the switch is pressed, reverse feed stitching at sewing start or
reverse feed stitching at sewing end is cancelled or added.
Every time the switch is pressed, the sewing counter value is increased.
needle up, the machine rotates in reverse direction and brakes to stop at
the specied angle. When the switch is pressed while the sewing machine
is at rest with its needle down, the machine rotates in normal direction and
brakes to stop at the specied angle.
Alternate up/down conversion output is inverted every time the switch is pressed. Alternate up/down conversion is output as long as the switch is held pressed
for the rst time. (Bobbin replacement) The presser foot is lowered and the
normal operation is restored when the switch is turned ON for the second time.
after a press on the switch, is cancelled once.
the switch is held pressed.
with its needle up, then presser foot goes up and the start-up of the sew­ing machine is disabled. (Bobbin replacement) The presser foot is lowered and the normal operation is restored when the switch is turned ON for the second time.
Sewing by means of the pedal switch is prohibited. The sewing machine stops with its needle up during sewing.
the switch is held pressed
prohibits from performing sewing when the switch is pressed
panel
Works as the input signal of the bobbin-thread remaining amount detection
sensor
is pressed
the switch is pressed
changed over between ON and OFF.
Changes over the status of the fastening stitch alignment between ON and OFF
(Same as the enable/disable changeover of function setting No. 151)
Changes over the status of the presser lifter and thread release interlock
function between ON and OFF (Same as the enable/disable changeover of function setting No. 194)
– 35 –
– 36 –
Output function list
Function code
0 noP 1 TrM 2 WiP 3 TL 4 FL 5 bT 6 EbT EBT cancel monitor output State of one time cancel of reverse feed stitching at end
7 SEbT Reverse feed stitching at start/end cancel
8 AUbT
9 SSTA
10 CooL
11 bUZ
12 LSWo 13 vErT Alternate up/down amount conversion
14 2PiT 15 bCGo
16 TC
17 CAbT
18 SToP 19 AEbo
20 UdET 21 ddET 22 UPWo
23 HAWo
24 TSWo
25 CUS1 Custom output 1 output Refer to the Engineer's Manual for details.
26 CUS2 Custom output 2 output Refer to the Engineer's Manual for details.
27 CUS3 Custom output 3 output Refer to the Engineer's Manual for details.
28 THLD Thread clamp output
29 TL2 Tension increasing state monitor output Monitor output of the OFF state of the thread release
30 TrMd Thread trimming prohibition status
31 bTP Fastening stitch alignment status monitor
32 FLTL Presser lifter and thread release interlock
33 CGUd Center guide output Outputs the center guide
34 CGEM Center guide control status monitor
Abbreviation
Function item Remarks
No function (Standard setting) Thread trimming output Output of thread trimming signal Thread wiper output Output of thread wiper signal Thread release output Presser lifter output Output of presser lifting signal Reverse feed stitching output Output of reverse feed stitching signal
monitor output Sewing start/end cancell ation/ad dition monitor output Sewing machine stop state output Sewing machine stop state is output.
Needle cooler output Output for needle cooler
Buzzer output
Revolution command output Revolution demanding command state is output.
(monitor) output
2-pitch output 2-pitch signal is output. Bobbin replacement monitor output Sewing machine start-up prohibition state during bobbin
Thread grasping enabled state monitor output
S/EBT 1-time cancellation monitor output
Stop state monitor output Sewing machine operation prohibition state is output. Thread remaining amount detecting
device air-blow output Upper position output Output of needle-up position state Lower position output Output of needle-down position state Upper position travel state output Monitor output while the needle goes up to its upper
Needle up/down correction operation output
Tsw command monitor output Thread trimming command status is output.
monitor output
output
status monitor output
output
Output of thread release signal
function is output. State of cancel of reverse feed stitching at start/end is out­put. State of cancel or addition of automatic reverse feed stitch­ing is output.
It is output when the bobbin counter set value has been ex­ceeded, an error has occurred or the bobbin thread remain­ing amount is detected.
Alternate up/down amount conversion signal is output.
replacement is output. Thread grasping enabled state is output.
One-time cancellation state of the reverse feed stitching at the beginning or end of sewing is output.
Air blow output when the thread remaining amount detecting device is used.
position. Monitor output while the needle up/down correction
operation is being carried out.
Output of the thread clamp at the beginning of sewing which is used in combination with the optical sensor
function
Monitor output of the thread trimming prohibition status
Monitor output of the fastening stitch alignment status
Monitor output of the presser lifter and thread release interlock status
Monitor output of the center guide control status
Input function setting connectors Output function setting connector
Con-
nector
No.
CN44
CN58
CN51
CN39
CN48
CN36
Pin No.
Display
No.
4
5 i02 Machine head switch 2 input
6 i03
7 i04
8 i05 Machine head switch 5 input
9 i06
10 i07 Machine head switch 7 input
11 i08 Machine head switch 8 input
15
16 i10
17 i11 Option 3 input
18 i12 Option 4 input
19 i13 Option 5 input
20 i14 Option 6 input
21 i15
22 i16
4
5 i18 Option 10 input
6 i19 Option 11 input
7 i20
8 i21 Option 13 input
9 i22 Option 14 input
10 i23 Option 15 input
11 i24 Option 16 input
7
11 i26
9
5
2
1
4
5 i32
i01 Machine head switch 1 input
i09 Option 1 input
i17 Option 9 input
i25
i27
i28
i29 SFSW (safety switch input)
i30 noP (no function is assigned)
i31 FL (presser lifter switch input)
Initial value of function set-
ting
Machine head switch 3 input
Machine head switch 4 input
Machine head switch 6 input
Option 2 input
Option 7 input
Option 8 input
Option 12 input
TSW
(thread trimming switch input)
LSSW (low speed switch)
HSSW (high speed switch)
FL (presser lifter switch input)
bT (reverse feed stitching
switch input)
Con-
nector
No.
CN44
CN59
CN51
Pin
No.
Display
No.
15 o01 Machine head LED 1 output
16 o02 Machine head LED 2 output
17 o03 Machine head LED 3 output
18 o04 Machine head LED 4 output
19 o05 Machine head LED 5 output
20 o06 Machine head LED 6 output
21 o07 Machine head LED 7 output
22 o08 Machine head LED 8 output
11 o09
12 o10
13 o11 Option 3 output
14 o12 Option 4 output
15 o13 Option 5 output
16 o14 Option 6 output
17 o15
18 o16
19 o17 Option 9 output
20 o18 Option 10 output
21 o19 Option 11 output
22 o20
23 o21 Option 13 output
24 o22 Option 14 output
25 o23 Option 15 output
26 o24 Option 16 output
15 o25
16 o26 Option 18 output
17 o27 Option 19 output
18 o28 Option 20 output
19 o29
20 o30 Option 22 output
21 o31 Option 23 output
22 o32 Option 24 output
Initial value of function set-
Option 1 output
Option 2 output
Option 7 output
Option 8 output
Option 12 output
Option 17 output
Option 21 output
ting
– 37 –
– 38 –
Sewing counting function (Function setting No. 14)
9
The function counts up every time thread trimming is completed and counts the number of completion of the sewing process.
0 : off Sewing counting function is inoperative.
1 4 1
1 : on Sewing counting function is operative. (Every time thread trimming
is performed)
2 : on External sewing counter switch input.
(Caution) The sewing counter can only be operative when the CP-180 is used with the sewing machine.
The counter indication changes as shown below according to the combination of setting No. 6 and setting
No. 14.
Setting No. 6 Setting No. 14 Counter
1 1 Bobbin counter 1 0 Bobbin counter 0 1 Sewing counter (only with CP-180) 0 0 Counter function is ineffective.
Neutral automatic presser lifting function (with AK device only) (Function setting No. 21 and No.155)
!0
This function can automatically lift the presser foot when the pedal is in the neutral position. The automatic lifting time depends on the No. 47 Automatic presser foot lifter retaining time. In the case the presser foot automatically comes down, the presser foot automatically goes up by bringing it to the neutral position after it has moved away from that position. (Solenoid type only)
(Caution) This function is disabled when No. 93 Needle up/down switch additional function setting is "2."
Function of automatic presser foot lifting at neutral position of pedal (function setting No. 21)
0 : Not provided with the function of automatic presser foot lifting at neutral
2 1 0
position of pedal
1 : Provided with selectable function of automatic presser foot lifting at neu-
tral position of pedal
2 : Provided with the function of automatic presser foot lifting at neutral po-
sition of pedal when enabled and added with the function of conducting
alternate operation by depressing the back part of pedal
(Caution) The alternate function is carried out regardless of the set-
ting of No. 155.
Setting of the position of carrying out automatic presser foot lifting at neutral position of pedal (function set-
ting No.155)
0 : The function of automatic presser foot lifting at neutral position of pedal
51 5 0
is enabled at all times
1 : The automatic presser foot lifting at neutral position of pedal is only
enabled when the sewing machine stops with its needle down
Needle up/down switch function changeover function (Function setting No. 22)
!1
The needle up/down switch function can be changed over between the needle up/down compensation and one stitch compensation.
0 : Needle up / down compensating stitching
2 2 0
1 : One stitch compensating stitching
Setting of the suction time of the back-tack solenoid (Function setting No. 29)
!2
This function can change the suction time of the back-tack solenoid. It is effective to decrease the value when the heat is high.
(Caution) When the value is excessively decreased, failure of motion or defective pitch will follow.
Be careful when changing the value.
Setting range : 50 to 500 ms < 10 ms >
2 9 52 0
Function of reverse feed stitching on the way (Function setting Nos. 30 to 33)
!3
Functions of the limit of number of stitches and thread trimming command can be added to the touch back switch on the sewing machine head.
Function setting No. 30 Function of reverse feed stitching on the way is selected.
3 0 0
0 : off Normal back-tack function 1 : on Function of reverse feed stitching on the way
Function setting No. 31 Number of stitches performing reverse feed stitching is set.
3 1 4
Setting range 0 to 19 stitches
Function setting No. 32 Effective condition of reverse feed stitching on the way
3 2 0
0 : off Inoperative when the sewing machine stops. (Reverse feed stitch-
ing on the way functions only when the sewing machine is running.)
1 : on Operative when the sewing machine stops.
(Reverse feed stitching on the way functions both when the sew­ing machine is running and stops.)
(Caution) Either condition is operative when the sewing machine is run-
ning.
Function setting No. 33
3 3 0
Thread trimming is performed when reverse feed stitching on the way is completed.
0 : off Without thread trimming 1 : on Thread trimming is executed.
Application
1
2
3
4
5
Function setting
No.30 No.32 No.33
0 0 or 1 0 or 1
1 0 0
1 1 0
1 0 1
1 1 1
Output function
It works as normal touch-back switch.
When operating touch-back switch at the time of depressing front part of the
pedal, reverse feed stitching as many as the number of stitches specied by the
function setting No. 31 can be performed.
When operating touch-back switch at the time of either stop of the sewing ma-
chine or depressing front part of the pedal, reverse feed stitching as many as the
number of stitches specied by the function setting No. 31 can be performed.
When operating touch-back switch at the time of depressing front part of the pedal,
automatic thread trimming is performed after reverse feed stitching as many as the
number of stitches specied by the function setting No. 31 has been performed.
When operating touch-back switch at the time of either stop of the sewing ma-
chine or depressing front part of the pedal, automatic thread trimming is per-
formed after reverse feed stitching as many as the number of stitches specied
by the function setting No. 31 has been performed.
Actions under each setting state
Used as the normal reverse feed stitching touch-back switch.
1
Used for reinforcing seam (press sewing) of the pleats. (It works only when the sewing machine is running.)
2
Used for reinforcing seam (press sewing) of the pleats.
3
(It works either when the sewing machine stops or when the sewing machine is running.)
Used as starting switch for reverse feed stitching at the sewing end.
4
(Used as the substitute for thread trimming by depressing back part of the pedal. It works only when the sewing machine is running. It is especially effective when the sewing machine is used as the standing-work machine.)
Used as starting switch for reverse feed stitching at the sewing end.
5
(Used as the substitute for thread trimming by depressing back part of the pedal. It works either when the sewing machine stops or when the sewing machine is running. It is especially effective when the sewing machine is used as the standing-work machine.)
Number of rotation of one-shot stitching (Function setting No. 38)
!4
This function can set, by the pedal operation of one time, the sewing speed of one-shot stitching when the sewing machine continues stitching until completing the number of stitches specied or detecting the mate­rial end.
3 8 051 0
Setting range : 150 to MAX sti/min < 50 sti/min >
(Caution) The max. number of rotation of one-shot stitching is limited by the model of the sewing ma-
chine head.
– 39 –
– 40 –
Holding time of lifting presser foot (Function setting No. 47)
!5
This function automatically lowers the presser foot when the time set with the setting No. 47 has passed after lifting the presser foot. When the pneumatic type presser foot lifter is selected, the holding time control of lifting presser foot is lim­itless regardless of the set value.
4 7 6 0
Compensation of timing of the solenoid for reverse feed stitching (Function setting No. 51 to 53,
!6
Setting range : 10 to 600 sec < 10 sec >
252 to 254)
When the normal and reverse feed stitches are not uniform under the automatic reverse feed stitching action, this function can change the ON / OFF timing of the solenoid for back tack and compensate the timing.
(Caution) 1. These functions are enabled when the function setting No. 151 Fastening stitch alignment
is set to OFF.
2. In the case the timing of the solenoid cannot be corrected with ease due to a large stitching
pitch, it is recommended to reduce the number of revolutions of reverse feed stitching (No. 8).
3. Also refer "III-11. Stitch alignment for the reverse stitching at the end of sewing (for heavy-
weight materials)" p.48 for the procedure for correcting the ON timing of the reverse stitch-
ing solenoid at the end of sewing.
Compensation of on-timing of solenoid for reverse feed stitching at the start of sewing (Function set-
1
ting No. 51, 252) On-timing of solenoid for reverse feed stitching at the start of sewing can be compensated by the unit of angle. No. 252 is used in the case the number of stitches of A process is set to one stitch.
5 1 1 1
2
5 2 2 5
Set value Compensation angle Number of stitches of compensation
–36 –360° –1 –18 –180° –0.5
0 0 18 180° 0.5 36 360° 1
Compensation of off-timing of solenoid for reverse feed stitching at the start of sewing (Function set-
2
 Adjustingrange:–36to36<1/10˚>
 Adjustingrange:0to36<1/10˚>
– 360˚ – 180˚
180˚ 360˚
* Set the angle with
reference to the
needle entry point
of the previous
stitch.
ting No. 52, 253)
Off-timing of solenoid for reverse feed stitching at the start of sewing can be compensated by the unit of angle.
No. 253 is used in the case the number of stitches of B process is set to one stitch.
5 2 1 3
2
5 3 2 5
Set value Compensation angle Number of stitches of compensation
–36 –360° –1 –18 –180° –0.5
0 0 18 180° 0.5 36 360° 1
Compensation of off-timing of solenoid for reverse feed stitching at the end of sewing (Function setting
3
 Adjustingrange:–36to36<1/10˚>
 Adjustingrange:0to36<1/10˚>
360˚
180˚
0˚ – 180˚ – 360˚
No. 53, 254) Off-timing of solenoid for reverse feed stitching at the start of sewing can be compensated by the unit of angle. No. 254 is used in the case the number of stitches of D process is set to one stitch.
5 3 4
 Adjustingrange:–36to36<1/10˚>
2
5 4 2 5
Set value Compensation angle Number of stitches of compensation
–36 –360° –1 –18 –180° –0.5
0 0 18 180° 0.5 36 360° 1
 Adjustingrange:0to36<1/10˚>
360˚ 180˚
0˚ – 180˚ – 360˚
F
oot lift function after thread trimming (Function setting No. 55)
!7
This function can automatically lift the presser foot after thread trimming. This function is effective only
when it is used in combination with the AK device.
5 5 1
0 : off Function of automatically lifting the presser foot is not provided.
(Presser foot does not automatically go up after thread trimming.)
1 : on Function of automatically lifting the presser foot is provided.
(Presser foot automatically goes up after thread trimming.)
Reverse revolution to lift the needle after thread trimming (Function setting No. 56)
!8
This function is used to make the sewing machine rotate in the reverse direction after thread trimming to lift the needle bar almost to highest position. Use this function when the needle appears under the presser foot and it is likely to make scratches on the sewing products of heavy-weight material or the like.
5 6 1
0 : off Function of making the sewing machine rotate in the reverse direc-
tion to lift the needle after thread trimming is not provided.
1 : on Function of making the sewing machine rotate in the reverse direc-
tion to lift the needle after thread trimming is provided.
(Caution) The needle bar is raised, by rotating the machine in the reverse direction, almost to the high-
est dead point. This may result in slip-off of the needle thread. It is therefore necessary to ad­just the length of thread remaining after thread trimming properly.
Needle bar home position retaining function (Function setting Nos. 58, 61 and 179)
!9
When the needle bar is in its specied position, it is retained at that position by applying a gentle brake.
Needle bar home position retaining function (Function setting No. 58)
5 8 0
0 : off Needle bar home position retaining is disabled
1 : on
2 : on
3 : on
Needle bar home position retaining is enabled (holding force is weak.)
Needle bar home position retaining is enabled (holding force is medium.)
Needle bar home position retaining is enabled (holding force is strong.)
Needle bar home position retaining time (function setting No. 61)
This function automatically cancels the function No. 58 after the lapse of the set time when the latter is in
the ON state.
This function should be used when you want to turn the sewing machine pulley after the completion of sewing.
6 1 0
0 : Function is disabled The needle bar home position retaining is ena-
bled at all times.
100 - 3000 ms < 100 ms >
Time limit for needle bar home position retaining (Function setting No. 179)
The time limit for retention of the needle bar at its home position is set.
7 9 01
0 : The function is disabled (no limit)
1 to 10 min
Change-over function of AUTO / Pedal for sewing speed of the reverse feed stitching at the start
@0
of sewing (Function setting No. 59)
This function selects whether the reverse feed stitching at the start of sewing is performed without a break at
the speed set by the function setting No. 8 or the stitching is performed at the speed by the pedal operation.
5 9 1
0 : Manual The speed is indicated by the pedal operation.
1 : Auto Automatic stitching at the specied speed
(Caution) 1. The max. sewing speed of the reverse feed stitching at the start of sewing is limited to
the speed set by the function setting No. 8 regardless of the pedal.
2. When “0” is selected, stitches of reverse feed stitching may not match those of normal feed stitching.
– 41 –
– 42 –
Function of stop immediately after the reverse feed stitching at the start of sewing (Function setting No. 60)
@1
This function temporarily stops the sewing machine even when keeping depressing the front part of the pedal at the time of completion of process of reverse feed stitching at the start of sewing. It is used when sewing a short length by reverse feed stitching at the start of sewing.
6 0 0
0 : Not provided with the function of temporary stop of the
sewing machine immediately after the reverse feed stitching at the start of sewing
1 : Provided with the function of temporary stop of the sew-
ing machine immediately after the reverse feed stitching
Stop the sewing machine
temporarily to change
direction of sewing products.
at the start of sewing
Function of soft-down of presser foot (with AK device only) (Function setting Nos. 70 and 49)
@2
This function can softly lower the presser foot. This function can be used when it is necessary to decrease contact noise, cloth defect, or slippage of cloth at the time of lowering the presser foot.
(Caution) Change the time of function setting No. 49 together at the time of selecting the function of
soft-downsincethesufcienteffectcannotbeobtainedunlessthetimeoffunctionsetting
No. 49 is set longer when lowering the presser foot by depressing the pedal.
4 9 41 0
0 to 500 ms < 10 ms >
7 0 0
0 : Function of soft-down of presser foot is not operative. (Presser foot is
rapidly lowered.)
1 : Selection of function of soft-down of presser foot
Function of reducing speed of reverse feed stitching at the start of sewing (Function setting No. 92)
@3
Function to reduce speed at the time of completion of reverse feed stitching at the start of sewing : Normal
use depending on the pedal condition (Speed is accelerated to the highest without a break.)
This function is used when temporary stop is used properly. (Cuff and cuff attaching)
9 2 0
Retry function (Function setting No. 73)
@4
0 : Speed is not reduced.
1 : Speed is reduced.
Temporary stop
Sew without stopping
without a break.
When the retry function is used, if the sewing material is thick and not pierced with needle, this function
makes the needle pierce in the material with ease.
7 3 1
0 : Retry function is not provided.
1 - 10 : Retry function is provided.
1: Needle-bar returning force before operating the retry function: 1 (small) - 10 (large)
Presser foot lifting solenoid suction time setting (Function setting No. 84)
@5
Suction time of presser foot lifting solenoid can be changed. When heating is great, it is effective to lessen
the value.
(Caution) When the value is excessively small, malfunction will be caused. So, be careful when chang-
ing the value.
8 4 52 0
Setting range : 50 to 500 ms < 10 ms >
Function of pedal curve selection (Function setting No. 87)
@6
This function can perform the selection of the curve of number of rotation of the sewing machine against the depressing amount of the pedal.
Change to this function when you feel that inching operation is hard or that pedal response is slow.
8 7 0
0 : Numb e r o f rot a t io n of th e s e w ing
2
machi ne i n terms of th e depressing amount of the pedal increases linearly.
1 : Reaction to intermediate speed in
0
terms of the depressing amount of the pedal is delayed.
2 : Reaction to intermediate speed in
terms of the depressing amount of the pedal is advanced.
Initial motion UP stop position move function (Function setting No. 90)
7
@
Number of rotation
(sti/min)
Pedal stroke (mm)
Effective/ineffective of automatic return to UP stop position immediately after turning ON the power can be set.
9 0 0
0 : Ineffective
1 : Effective
Function added to the needle up / down compensating switch (Function setting No. 93)
@8
Operation of needle up/down compensating switch is changed after turning ON the power or thread trimming.
9 3 0
0 : Normal (needle up/down compensating stitching only)
1 : One stitch compensating stitching is performed only when aforemen-
tioned changeover is made. (Upper stop / upper stop) 2 : Needle-down function operates after thread trimming. 3 : Function of needle-down with operation of 2 plus presser lowering op-
eration and needle-up with thread trimming operation is added.
1
Continuous stitching + one shot stitching nonstop function (Function setting No. 94)
@9
This function is used to proceed a step to the next one without stopping the sewing machine at the end
of the step when performing sewing with the continuous sewing and one-shot sewing combined using the programming function of the operation panel IP.
9 4 0
0 : Normal (Stop when a step has completed.)
1 : The sewing machine proceeds to next step without stopping after a
step has completed.
Setting of max. number of rotation of the sewing machine head (Function setting No. 96)
#0
This function can set the max. number of rotation of the sewing machine head you desire to use.
Upper limit of the set value varies in accordance with the sewing machine head to be connected.
9 6 003 0
Main shaft reference angle compensation (Function setting No. 120)
#1
150 to Max sti/min < 50 sti/min >
Main shaft reference angle is compensated
21 0 0
UP position starting angle compensation (Function setting No. 121)
#2
Setting range : – 60 to 60˚ < 1˚ >
Angle to detect UP position starting is compensated.
21 1 0
Setting range : – 15 to 15˚ < 1˚ >
DOWN position starting angle compensation (Function setting No. 122)
#3
Angle to detect DOWN position starting is compensated.
21 2 0
Setting range : – 15 to 15˚ < 1˚ >
– 43 –
– 44 –
Setting of energy saving function during standby (Function setting No. 124)
#4
It is possible to reduce power consumption while the sewing machine is in standby state. It should be noted that the startup of the sewing machine may delay for a moment if this function is set.
21 4 0
Number of stitches setting for automatic cancellation of alternate up/down output (function set-
#5
ting No. 144)
Alternate up/down output is cancelled when the set number of stitches has been sewn (0: Automatic can­cellation is disabled). After the alternate up/down output is output by the set number of stitches, output is
turned OFF. When "0" is set, this function does not work. (However, the number of stitches actually sewn
may be larger than the set one according to the sewing speed.)
41 4 0
Selection of alternate up/down output after thread trimming (function setting No. 146)
#6
Alternate up/down output is forcibly turned ON or OFF after thread trimming.
When this function is set to disable, the alternate up/down output retains the state before thread trimming. When the set value is "1," the alternate up/down output is brought into the OFF state. When the set value
is "2," the output is brought into the ON state.
41 6 0
0 : Energy-saving mode is ineffective.
1 : Energy-saving mode is effective.
0 : Automatic cancellation is disabled
1 to 30 stitches
0 : Disabled
1 : OFF
2 : ON
Selection of alternate up/down initial output (function setting No. 147)
#7
Alternate up/down output is forcibly turned ON or OFF when the power is turned ON. When this function is set to disable, the alternate up/down output is restored to the state in which the func­tion has been set before the last turn-OFF of the power.
When the set value is "1," the alternate up/down output is brought into the OFF state. When the set value
is "2," the output is brought into the ON state.
41 7 0
2-pitch output during reverse feed stitching at the beginning/end of sewing (function setting No. 148)
#8
2-pitch output is set in the ON state during control of reverse feed stitching at the beginning/end of sewing.
41 8 0
2-pitch output inversion during alternate up/down output (function setting No. 149)
#9
The 2-pitch output status is output with inverted in synchronism with the alternate up/down output. 2-pitch output is changed over to "OFF" if it is set in the ON state or to "ON" if it is set in the OFF state when changing over the alternate up/down output.
41 9 0
2-pitch initial output selection (function setting No. 150)
$0
2-pitch output is forcibly turned ON or OFF when the power is turned ON.
When this function is set to disable, the 2-pitch output is restored to the state in which the function has
been set before the last turn-OFF of the power.
When the set value is "1," the alternate up/down output is brought into the OFF state. When the set value
is "2," the output is brought into the ON state.
51 0 0
0 : Disabled
1 : OFF 2 : ON
0 : The function is in the OFF state
1 : The function is in the ON state
0: The function is in the OFF state
1: The function is in the ON state
0 : Disabled
1 : OFF 2 : ON
Pause and stitch alignment function (function setting No. 151)
$1
When the reverse feed stitching/multi-layer stitching is specied, the sewing machine temporarily stops at
every corner of the sewing pattern at the beginning and end of sewing and during overlapped stitching.
(Caution) When this function is brought into ON state, functions setting numbers 51 to 53 are disabled.
51 1 0
Condensation stitching function for beginning/end of sewing (function setting No. 154)
$2
0 : The function is in the OFF state
1 : The function is in the ON state
Temporarily stops at these points.
In the case of the sewing machine head provided with the condensation stitching function, the sewing ma­chine performs condensation stitching instead of automatic reverse feed stitching. This function should be used when you do not want to carry out reverse feed stitching but want to prevent thread from slipping off the material at the beginning and end of sewing.
51 4 0
0 : The function is in the OFF state
1 : The function is in the ON state
Needle thread grasping function (function setting No. 156)
$3
Selection between enable/disable of the needle thread grasping function
51 6 0
0 : Enable/disable is changed over with the operation enabling switch
1 : The function is disabled
2 : The function is enabled.
Bobbin thread remaining amount detecting function (function setting Nos. 167 and 168)
$4
Enable/disable of the bobbin thread remaining amount detecting function (function setting No. 167) Enable/disable of the bobbin thread remaining amount detecting function is set in the case the bobbin
thread remaining amount detecting device is used.
61 7 1
0 : Disabled
1 : Enabled
Bobbin thread remaining amount detecting function (function setting No. 168)
Refer to the Instruction Manual for the device for details about the setting.
61 8 0
Optical sensor function (Function setting Nos. 235, 236, 237, 238, 239, 242, 247 and 251)
$5
Optical sensor function (Function setting No. 235)
Enable this function if it is to be used.
Before enabling this function, assign the optical sensor input with No. 12.
(Caution) This function is enabled only for the CP-18. For the other operation panels, set the optical
sensor with the switches on the panel.
32 5 0
0 : Optical sensor function is disabled
1 : Optical sensor function is enabled
Optical sensor lter function (Function setting No. 236) This function lters the optical sensor input. Use this function in combination with Function No. 237: Number of stitches for optical sensor lter.
32 6 0
0 : Optical sensor lter function is disabled
1 : Optical sensor lter function is enabled
Numbers of stitches for optical sensor lter (Function setting No. 237) The number of stitches for which the optical sensor input is ltered is set. It is used when Function No. 236: Number of stitches for optical sensor lter is enabled.
32 7 0
0 to 99 stitches
– 45 –
Direction of sewing
Sensor signal
Sensor input
o.237
N
Number of stitches for stopping the sewing machine after optical sensor input (Function setting No. 238)
The number of stitches to be sewn from the optical sensor input to the stop of the sewing machine is set.
(Caution) This function is enabled only for the CP-18. For the other operation panels, set the number of
stitches for stopping the sewing machine after optical sensor input with the switches on the
panel.
32 8 7
0 to 99 stitches
Number of times of optical sensor detection (Function setting No. 239)
The sewing machine carries out automatic thread trimming when the set number of times the optical sen-
sor input is turned ON is reached.
32 9 1
1 to 15 times
Pedal depressing speed limiting function (Function setting No. 242)
The function limits the sewing speed upon the optical sensor input.
(Caution) This function can be set to "3" only for the CP-18. For the other operation panels, set this
function with the switches on the panel.
42 2 0
0 : The function is disabled.
1 : Fixed at the one-shot speed
2 : Limited to the one-shot speed
3 : When the optical sensor is enabled, the sewing machine runs under the
automatic mode upon depress on the pedal.
Optical sensor thread-trimming prohibiting function (Function setting No. 247)
Thread trimming activated by the optical sensor input is prohibited.
(Caution) This function can be set only for the CP-18. For the other operation panels, set this function
with the switches on the panel.
42 7 0
0 : Thread trimming is enabled
1 : Thread trimming is disabled (solenoid output is prohibited)
Optical sensor input logic changeover (Function setting No. 251)
In the case two or more optical sensors are used, the input retrieving method is selected.
52 1 0
0 : OR input
1 : AND input
– 46 –

9. Automatic compensation of neutral point of the pedal sensor

Whenever the pedal sensor, spring, etc. are replaced, be sure to perform following operation :
, turn ON the
4
1
A
1) Pressing switch
B
power switch.
2) Compensated value is displayed on
.
B
sensor does not work properly if the pedal is de­pressed. Warning sound "blips" and the correct compensation value is not displayed.
2. If any display ("-0-" or "-8-") other than a numeric value appears on indicator
, refer to the Engineer's
B
Manual.
2
indicator
(Caution) 1. At this time, the pedal
543
6
7
3) Turn OFF the power switch, and turn ON the power switch again to return to the normal mode.
(Caution) Be sure to re-turn ON the power switch when one or more seconds have passed after turn-
ing it OFF.
(If the ON-OFF operation is carried out faster than the above, the setting may not change
normally.)
10. Selectionofthepedalspecications
When the pedal sensor has been replaced, change the set value of function setting No. 50 according to the newly connected pedal specications.
0 : KFL
1 : PFL
(Caution) Pedal sensor with two
2
1
A
543
6
7
B
springs located at the back
part of the pedal type is
PFL, and that with one
spring type is KFL. Set the
pedal sensor to PFL when
lifting the presser foot by
depressing the back part of
the pedal.
– 47 –
– 48 –
11. Stitch alignment for the reverse stitching at the end of sewing (for heavy-weight
materials)
Particularly in the case of the machine head for heavy-weight materials, stitches are not always aligned in
the section shown in the gure below even if the timing of the reverse feed stitching at the end of sewing is
corrected. In this case, set the following function to align the stitches.
At the timing when the sewing machine starts
1
reverse stitching, the rotating speed of the sew-
EBT section
Speed
Low speed section
1
Time
ing machine in the section where the sewing
machine is rotated at a low speed can now be
changed.
Function setting No. 64
Standard
Machine head LU-1510N-7 (Heavy-weight
Condition
materials)
Pitch 6 mm
Number of stitches 4 stitches ITEM No. 64 180 sti/min
Stitch pitch is
shortened.
Misaligned
Example of setting of function No. 64
Machine head LU-1510N-7 (Heavy-weight
Condition
materials)
Pitch 6 mm
Number of stitches 4 stitches ITEM No. 64 0 sti/min

12. Input/output function of the hand switch and knee switch

1
A
B
8
ThegureofhandswitchofLU-1510N-7
is shown above.
2
543
6
7
For the sewing machine head which is provided with the hand switch or the knee switch, the input/output
function of the switch can be set by pressing the switch during function setting operation.
At this time, the input/output function of the hand switch and the input function of the knee switch can be
changed.
Refer to
"III-8.-
List of input functions" p.35
8
and
"III-8.-
List of output functions" p.36
8
for the
selectable functions.
A press on the switch enables the input function setting. One more press on the switch enables the output
function setting.
It must be remembered, however, that output function of the switch which is not provided with the output LED
cannot be set.
* Example) To assign the thread trimming function to the BT switch
9 6 003 0
3i 2 b T
0i 4 ST W
Lighting alternately
0i 4 4
1. Turn ON the power switch with switch 7 held pressed.
5
.
8
and
switch
2. Press BT switch
3. Press switch
function.
4. Press switch
3
and
switch
function.
to display "TSW" thread trimming
6
to conrm "TSW" thread trimming
4
– 49 –
– 50 –

13. Use of the hand switch and the knee switch

1
2
For the sewing machine head which is provided with the hand switch or the knee switch, enable/disable of
the switch can be selected by pressing the switch during one-touch setting.
* Example) Disabling the BT switch
iW P o n
b T Fo F
1. Bring the SC-922 into the setting mode referring to
2. Press BT switch 8 to display "bT oFF".
A
543
ting" p.20
6
.
B
8
ThegureofhandswitchofLU-1510N-7
is shown above.
7
"III-4. One-touch set-
iW P o n
3. Automatically a second later or a press on one of switches
play returns to the previous state.
1
to
, the dis-
7

14. Setting of the auto lifter function

WARNING :
When the solenoid is used with the air drive setting, the solenoid may be burned out. So, do not mistake the setting.
When the auto-lifter device (AK) is attached, this function makes the function of auto-lifter work.
1
A
B
1) Turn ON the power switch with
switch 5 held pressed.
2) "FL ON" is displayed on indicators
A
and B with a blip to make the auto lifter function effective.
3) Turn OFF the power switch, and turn ON the power switch again to return to the normal mode.
4) Repeat the operation 1) to 3), and
LED display is turned to (FL OFF).
2
543
6
7
Then, the function of auto-lifter does not work.
FL ON : Auto-lifter device becomes effective. Selection of the auto-lifter device of solenoid drive (+33V)
or of air drive (+24V) can be performed with switch
6
.
(Changeover is performed to drive power +33V or +24V of CN37.)
Solenoid drive display (+33V)
Air drive display (+24V)
FL OFF : Auto-lifter function does not work. (Similarly, the presser foot is not automatically lifted when pro- (Similarly, the presser foot is not automatically lifted when pro-
grammed stitching is completed.)
(Caution) 1. To perform re-turning ON of the power, be sure to perform after the time of one second or
more has passed. (If ON / OFF operation of the power is performed quickly, setting may be not changed over well.)
2. Auto-lifter is not actuated unless this function is properly selected.
3. When “FL ON” is selected without installing the auto-lifter device, starting is momentarily delayed at the start of sewing. In addition, be sure to select “FL OFF” when the auto-lifter is not installed since the touch-back switch may not work.
– 51 –
– 52 –

15. Selecting procedure of the key-lock function

Setting of the number of stitches for a pattern can be prohibited by enabling the key lock function.
1) Turn ON the power switch with
1
A
B
switch 5 and switch 6 held pressed.
2) "KEY LOCK" is displayed on indica-
tors A and B with a blip to make the
key-lock function effective.
3) The panel returns to the normal op-
eration after displaying "KEY LOCK"
on the indicators.
2
543
6
7
4) While the key lock function is effective, "KEY LOCK" is displayed on the indicators when turning the
power ON.
5) When you carry out steps 1) to 3) in repetition, "KEY LOCK" is not displayed when turning the power
ON and the key lock function is rendered ineffective.
• KEY LOCK display when turning the power ON Display appears: The key lock function is effective. Display does not appear: The key lock function is ineffective.

16. Initialization of the setting data

All contents of function setting of SC-922 can be returned to the standard set values.
1) Turn ON the POWER switch with all
1
2
(Caution) Do not turn OFF the power on the way of initializing operation. Program of the main unit
may be broken.
A
543
6
4) Turn OFF the power switch and turn ON the power switch after closing the front cover. The machine returns to the normal motion.
(Caution) 1. When you carry out the aforementioned operation, the neutral position correction value
for the pedal sensor is also initialized. It is therefore necessary to carry out automatic correction of the pedal sensor neutral position before using the sewing machine. (Refer
“III-9. Automatic compensation of neutral point of the pedal sensor” p.47.)
2. When you carry out the aforementioned operation, the machine-head adjustment values are also initialized. It is therefore necessary to carry out adjustment of the machine head before using the sewing machine. (Refer “II-10. Adjusting the machine head” p.15.)
3. Even when this operation is performed, the sewing data set by the operation panel can­not be initialized.
7
B
of switch 4, switch 5 and
switch 6 held pressed.
2) "rS" is displayed on indicator B with
a blip to start initialization.
3) The buzzer sounds after approxi-
mately one second (single sound three times, “peep”, “peep”, and “peep”), and the setting data returns to the standard setting value.

17. External input / output connector

A switchable general-purpose input/output is provided at function setting No. 12 for an external output
connector 1 (CN51).
(Caution)
Table of assignment of connector and signal
CN51 Signal name No. 12 display No. Input/output Description Electric spec.
1 GND GND
When using the connector, note that the engineer who has the electrical knowledge has to work.
1
2 GND GND
3 MA Output
4 OPI9
5 OPI10
6 OPI11
7 OPI12
8 OPI13
9 OPI14
10 OPI15
11 OPI16
12 +24V Power source
13 +24V Power source
14 +5V Power source
15 OPO17 o25 Output
16 OPO18 o26 Output
i17 Input Option 9 input DC5V, - 5mA
i18 Input Option 10 input DC5V, - 5mA
i19 Input Option 11 input DC5V, - 5mA
i20 Input
i21
i22 Input Option 14 input DC5V, - 5mA
i23 Input Option 15 input DC5V, - 5mA
i24 Input Option 16 input DC5V, - 5mA
Input Option 13 input
Rotation signal 360 pulses/rotation DC5V
Option 12 input
Option 17 output NPN open collector
Option 18 output NPN open collector
DC5V, - 5mA
DC5V, - 5mA
17 OPO19 o27 Output
18 OPO20 o28 Output
19 OPO21 o29 Output
20 OPO22 o30 Output
21 OPO23 o31 Output
22 OPO24 o32 Output
Option 19 output NPN open collector
Option 20 output NPN open collector
Option 21 output NPN open collector
Option 22 output NPN open collector
Option 23 output NPN open collector
Option 24 output NPN open collector
JUKI genuine part No. Connector : Part No. HK034610220
Pin contact : Part No. HK03464000A
– 53 –
– 54 –

18. How to connect the material edge sensor

For SC-922, a commercially available photoelectric sensor can be connected and used as a material end sensor. A connection example is shown below.
Pin No. Signal Remarks
2 GND 0V
11 OPI16
Sensor input
13 +24V Power source
3
(Cable
band)
(CN51)
2
2-wire system
3-wire system
1
1) Connect the material end sensor to the connector (Molex, 22P).
1
For 2-wire system, connect 0 V and the sensor
input to pin 2 and pin 11, respectively.
For 3-wire system, connect 0 V, the sensor input,
and 24 V to pin 2, pin 11, and pin 13, respectively.
2) Insert the connector 1 that was connected in
the step 1 into the connector
(CN51, 22P) of
2
SC-922.
3) Pass these cables through the cable clamp and
fasten them with the cord of the material end
sensor with the cable band
mounted on the
3
side face of the box.
4) Connect CN51-11 (display No. i24) to the mate-
rial edge sensor input referring to
"III-8.-8 Se-
lection of the optional input/output function
(Function setting No. 12)" p.34.
(Caution) 1. Be sure to turn off the power before
connection.
2. Use a 24 V-ready material end sensor.
3. Refer to "III-4. One-touch setting" p.20
for how to use the material edge sen-
sor.

IV. MAINTENANCE

1. Removing the rear cover

WARNING :
To prevent personal injuries caused by electric shock hazards or abrupt start of the sewing machine, remove the cover after turning OFF the power switch and a lapse of 5 minutes or more. To prevent personal injuries, when a fuse has blown out, be sure to replace it with a new one with the same capacity after turning OFF the power switch and removing the cause of the blown-out of the fuse.
1) Press the OFF button of the power switch to turn
OFF the power after conrming that the sewing
machine has stopped.
2) Draw out the power cord coming from the power plug socket after conrming that the power switch
is turned OFF. Perform the work of step 3) after
conrming that the power has been cut and it has
passed for 5 minutes or more.
2
3) Loosen setscrew 2 in cover
1
. Open cover 1.
1
3
4) To close cover 1, re-tighten setscrew 2 while paying attention to the orientation of cable clip band 3 mounted on the side face of the box.

2. Replacing the fuse

(Caution) The illustration below shows the PWR-T PCB. The type of PCB differs by destination.
1) Remove all the cables
which are connected to
the control box.
2) Remove the connecting
1
2
rod.
3) Remove the control box
from the table stand.
4) Holding the glass sec-
tion of fuse
the fuse.
, remove
1
(Caution) There is a risk of electrical shock when removing the fuse. Be sure to remove the fuse after
LED 2 has totally gone out.
5) Be sure to use a fuse with the designated capacity. : 3.15 A/250 V Time-lag fuse (Power circuit protective fuse)
1
Part number: KF000000080
6) Install the control box on the table stand. (Refer to
7) Connect all the cables to the control box. (Refer to
8) Fit the connecting rod back in place. (Refer to
"II-8. Attaching the connecting rod" p. 13
– 55 –
"II. SET-UP" p. 1 "II-7. Connecting the cords" p. 5
.)
.)
.)
– 56 –

3. Error codes

In case of the following, check again before you judge the case as trouble.
Phenomenon Cause Corrective measure
When tilting the sewing machine, the
buzzer beeps and the sewing ma­chine cannot be operated.
Solenoids for thread trimming
Solenoids for thread trimming, re­verse feed, wiper, etc. fail to work. Hand lamp does not light up.
Even when depressing the pedal im­mediately after turning ON the power, the sewing machine does not run. When depressing the pedal after de­pressing the back part of pedal once, the sewing machine runs.
The sewing machine does not stop even when the pedal is returned to its neutral position.
Stop position of the sewing machine varies (irregular).
Presser foot does not go up even when auto-lifter device is attached.
Touch-back switch fails to work. Presser foot is going up by auto-liter
UP position move fails to work when all lamps on the panel light up.
Sewing machine fails to run. Motor output cord (4P) is disconnected. Connect the cord properly.
When tilting the sewing machine with­out turning OFF the power switch, Ac­tion given on the left side is taken for safety sake.
When the fuse for solenoid power
protection has blown out
Neutral position of the pedal has var­ied.
(Neutral position may be shifted when changing spring pressure of the pedal or the like.)
When tightening the screw in the
handwheel is forgotten at the time of adjustment of needle stop position.
Auto-lifter function is OFF. Select “FL ON” by auto-lifter function
Pedal system is set to KFL system
Cord of auto-lifter device is not con­nected to connector (CN37).
device.
Auto-lifter device is not attached. How­ever, auto-lifter function is ON.
The mode is in the function setting mode.
The switch on the CTL p.c.b. is
pressed by the bound cords and the aforementioned mode resulted.
Connector (CN30) of motor signal cord
is disconnected.
Tilt the sewing machine after turning OFF the power.
Check the fuse for solenoid power pro­tection.
Execute the automatic neutral correc­tion function of the pedal sensor.
Securely tighten the screw in the handwheel.
selection.
.
Change the jumper to PFL setting to
lift the presser foot by depressing the back part of the pedal.
Connect the cord properly.
Operate the switch after the presser foot lowered.
Select “FL OFF” when auto-lifter de­vice is not attached.
Remove the under cover. Bundle the cables by routing them according to the normal routing method as de­scribed in the Instruction Manual.
Connect the cord properly.
n addition, there are the following error codes in this device. These error codes interlock (or limit function) and inform
I
the problem so that the problem is not enlarged when any problem is discovered. When you request our service, please conrm the error codes.
[Checking procedure of the error code]
1
A
B
1) Turn ON the power switch with
switch
held pressed.
3
2) The latest error number is displayed on indicator B with a blip.
3) Contents of previous errors can be
checked by pressing switch
4
.
2
or switch
543
6
7
(When the confirmation of the con­tents of previous error advanced to the last, the warning sound peeps in single tone two times.)
(Caution) When switch 3 is pressed, the previous error code of the currently displayed one is
displayed. When
switch 4 is pressed, the next error code of the currently displayed
one is displayed.
Error code list
No. Description of error detected Cause of occurrence expected Items to be checked
Media cover open • Cover of the slot of media is open. • Close the cover.
E000 Execution of data initialization
(This is not the error.)
E003 Disconnection of synchronizer
connector
E004 Synchronizer lower position
sensor failure
E005 Synchronizer upper position
sensor failure
E007 Overload of motor • When the machine head is locked.
E008 Undened machine head is
selected
E011(*) Media is not inserted. • Media is not inserted. • Turn the power OFF and check the media.
E012(*) Read error • Data of media cannot be read. • Turn the power OFF and check the media.
E013(*) Write error • Data of media cannot be written. • Turn the power OFF and check the media.
E014(*) Write protect • Media is in the state of writing prohibition. • Turn the power OFF and check the media.
E015(*) Format error • Formatting cannot be performed. • Turn the power OFF and check the media.
E016(*) External media capacity over • Capacity of media is short. • Turn the power OFF and check the media.
E019(*) File size over • File is too large. • Turn the power OFF and check the media.
E032(*) File interchangeability error • There is no interchangeability of le. • Turn the power OFF and check the media.
* The error number attached with an asterisk (*) is displayed only in the case a fault occurs when the IT panel is connected to
the sewing machine.
• When the machine head is changed.
• When the initialization operation is ex-
ecuted
• When position detection signal is not input
from the sewing machine head synchro­nizer.
• When the synchronizer has broken.
• Belt is loose.
• Machine head is not proper.
• Motor pulley is not proper.
• When sewing extra-heavy material beyond
the guarantee of the machine head.
• When the motor does not run.
• Motor or driver is broken.
• The machine head that does not support
the SC-922 is selected.
• Check the synchronizer connector (CN33) for
loose connection and disconnection.
• Check whether the synchronizer cord has bro-
ken since the cord is caught in the machine head.
• Check the belt tension.
• Check the setting of the machine head.
• Check the setting of the motor pulley.
• Check whether the thread has been entangled
in the motor pulley.
• Check the motor output connector (4P) for
loose connection and disconnection.
• Check whether there is any holdup when turn-
ing the motor by hand.
• Check the machine head selection using func-
tion setting No. 95.
• Check the Revision of the PWR PCB. If it is Rev. 01, replace the PWR PCB with the one
revision of which is Rev. 02 or later.
3
– 57 –
– 58 –
No. Description of error detected Cause of occurrence expected Items to be checked
E041(*)
E044(*) Date and time error • This error number is displayed in the event
E053(*) Notication of production sup-
E055(*)
E056(*) Work management error • This error number is displayed in the event
E057(*) Pitch time monitor error • This error number is displayed in the event
E065(*) Network transmission failed • This message is displayed in the case data
E067(*) ID reading failed • This message is displayed in the case data
E204(*) USB insertion • This message is displayed in the case the
E205(*) Warning of ISS buffer remain-
Sewing recorder error • This error number is displayed in the event
of a sewing recorder data fault.
of operation/data fault concerning date or time of day.
• This error number is displayed after the port function initialization (This is not an error)
Production management error • This error number is displayed in the event
E070 Slip of belt • When the machine head is locked.
E071 Disconnection of motor output
connector
E072 Overload of motor at the time
of thread trimming motion
ing amount
E220 Grease-up warning • When the predetermined number of stitches
E221 Grease-up error • When the predetermined number of stitches
E302 Fall detection switch failure
(When the safety switch works)
(Thread trimming knife sensor)
* The error number attached with an asterisk (*) is displayed only in the case a fault occurs when the IT panel is connected to
the sewing machine.
execution of initialization of the produc­tion support function or upgrading of the program.
of production management work manage­ment data fault.
of data fault.
of pitch time monitor data fault.
cannot be sent to the personal computer by way of the network.
in the ID le is broken.
• Belt is loose.
• Disconnection of motor connector • Check the motor output connector for loose
• Same as E007 • Same as E007
sewing machine is activated with the USB thumb drive inserted.
• This message is displayed in the case the
buffer storage for storing the ISS data is almost full.
If the sewing machine is continuously used with the buffer storage full, the stored pieces of data will be erased from the earli­est one.
has been reached.
has been reached and the sewing is not possible.
• When fall detection switch is input in the
state that the power is turned ON.
• Machine-head tilt detector's connecter has
come off.
• Thread trimming knife position is not cor-
rect.
• Reset switch
• Reset switch
• Reset switch
• Reset switch
• Reset switch
• Check whether the network has any fault.
• Check whether the data has any fault.
• Check whether there is any holdup when turn-
ing the motor by hand.
• Check the belt tension.
connection and disconnection.
• Remove the USB thumb drive.
• Output the data.
• Replenish the specied places with grease
and reset. (For the details, refer to the data of the ma-
chine head.)
• Replenish the specied places with grease
and reset. (For the details, refer to the data of the ma-
chine head.)
• Check whether the machine head is tilted
without turning OFF the power switch (sewing machine operation is prohibited for safety sake).
• Check whether the fall detection switch cord
is caught in the sewing machine or the like.
• Check whether the fall detection switch lever
is caught in something.
• Check whether the contact of the tilt detection
switch lever with the machine table is inad­equate. (The table has a dent or the mounting location of the bed strut is too far)
• Check the machine-head tilt detector's con­nector (CN48) for looseness and slip-off.
• Positioning of the thread trimming sensor
• Set the function setting No. 74 to 0 (zero) when the thread trimmer is not installed on the sewing machine.
No. Description of error detected Cause of occurrence expected Items to be checked
Semicircular plate sensor error • Semicircular plate sensor signal cannot be
E303
E499 Simplied program data fault • Command parameter data is out of speci-
E703(*) Operation panel is connected
to the unexpected sewing machine. (Error of sewing
machine model)
E704(*) System version mismatch • The system version is different from the
E730 Encoder failure • When the motor signal is not properly input-
E731 Motor hole sensor failure
E733 Inverse rotation of motor • This error occurs when the motor is run-
E799 Thread trimming operation
time-ou
E808 Solenoid short circuit • Solenoid power does not become normal
E809 Holding motion failure • Solenoid is not changed over to holding
Solenoid current abnormality • Solenoid rare short-circuit. • Solenoid resistance
E810
E811 Abnormal voltage • When voltage higher than guaranteed one
E906 Operation panel transmission
failure
E924 Motor driver failure • Motor driver has broken.
E942 Faulty EEPROM • Data cannot be written on the EEPROM. • Turn the power OFF.
* The error number attached with an asterisk (*) is displayed only in the case a fault occurs when the IT panel is connected to
the sewing machine.
detected.
ed range.
• The operation panel and the sewing machine model do not match in the initial communication.
correct one in the initial communication.
ted.
ning at 500 sti/min or more in the opposite direction of that of rotation indication during motor is running.
• The thread trimming control operation is not completed within the predetermined time (within three seconds).
voltage.
motion.
is inputted.
• 200V has been inputted to SC-922 of 100V specications.
• JA : 220V is applied to 120V box.
• CE : 400V is applied to 230V box.
• When voltage lower than guaranteed one is
inputted.
• 100V has been inputted to SC-922 of 200V specications.
• JA : 120V is applied to 220V box
• Inner circuit is broken by the applied over­voltage
• Disconnection of operation panel cord
• Operation panel has broken.
• Check whether the machine head corre-
sponds with the machine type setting.
• Check whether the motor encoder connector
is disconnected.
• Re-enter the relevant simplied program.
• Set the simplied program in disable.
• Connect the operation panel to the correct
model of the sewing machine.
• Re-write the system version to the one that can be used with the operation panel.
• Check the motor signal connector (CN30) for
loose connection and disconnection.
• Check whether the motor signal cord has bro­ken since the cord is caught in the machine head.
• Check whether the inserting direction of the
motor encoder connector is wrong.
• Check whether the machine head corre­sponds with the machine type setting.
• Check whether the main-shaft motor encoder
wire is connected incorrectly.
• Check whether the main-shaft motor wire for
power supply is connected incorrectly.
• Check whether the machine head actually
installed is different from the machine head selection.
• Check whether the motor-pulley diameter
does not match its setting (effective diameter).
• Check whether the belt has slackened.
• Check whether the machine head cord is
caught in the pulley cover or the like.
• Check whether the solenoid is abnormally heated. (CTL circuit board asm. Circuit is
broken.
• Check whether the applied power voltage is higher than the rated voltage + (plus) 10% or
more.
• Check whether 100V/200V changeover con­nector is improperly set.
In the aforementioned cases, POWER p.c.b is
broken.
• Check whether the voltage is lower than the
rated voltage - (minus) 10% or less.
• Check whether 100V/200V changeover con­nector is improperly set.
• Check whether fuse or regenerative resis­tance is broken.
• Check the operation panel connector (CN38)
for loose connection and disconnection.
• Check whether the operation panel cord has
broken since the cord is caught in the ma­chine head.
– 59 –
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