ZOJE 1900D User manual

1900DComputerized Control
System for Doubling and Tacking
Machine
User’s Manual

Foreword
Thanks for using the Computerized Sewing Machine of ZOJE Company.
It is appreciated that you do read this manual carefully in order to operate the
machine correctly and effectively. If the user operates the machine contrary to
regulations, thus causes loss to user or third party, we will not take responsibility.
Besides, you should keep this manual for future use. For any fault or problem of
machine, please ask the professionals or the technicians authorized by us for repair
service.

Contents
1 General Information.......................................................................................................................1
1.1 Supporting Model ...............................................................................................................1
1.2 Method for Input.................................................................................................................1
1.3 Method for Display.............................................................................................................1
1.4 Layout of Panel...................................................................................................................1
1.5 Standardization....................................................................................................................1
1.6 Method for Operation..........................................................................................................1
2 Operational Instruction ..................................................................................................................2
2.1 Name & Description of Buttons on Control Panel..............................................................2
2.2 Basic Operation...................................................................................................................3
2.2.1 Settings of Item Data...............................................................................................3
2.2.2 Confirmation of Pattern Shape................................................................................5
2.2.3 Sewing.....................................................................................................................6
2.2.4 Change to Other Patterns ........................................................................................6
2.2.5 Winding...................................................................................................................7
2.2.6 Independent Thread-trimming Device....................................................................7
2.2.7 Thread-catching Device ..........................................................................................7
2.2.8 Bottom Thread Counter...........................................................................................9
2.2.9 Pause.......................................................................................................................9
2.3 Set P Pattern & C Pattern..................................................................................................10
2.3.1 Use Pattern Key（）for Sewing.............................10
2.3.2 Sewing with Combination Functions....................................................................12
2.4 Debugging Mode...............................................................................................................14
2.4.1 CP-1（Input Signal Test）...................................................................................17
2.4.2 CP-2（Check X/Y Motor/Origin Sensor）..........................................................18
2.4.4 CP-4（Test Main Motor Speed）.........................................................................20
2.4.6 CP-6（Test Presser Origin Sensor）....................................................................24
2.4.7 CP-7（Test Thread-catching Motor/ Origin Sensor）..........................................24
2.5 Parameter Setting..............................................................................................................26
2.5.1 Specific Operations on Setting Parameters...........................................................26
2.5.2 Example for Setting Parameters............................................................................26
2.5.3 Table for Parameter Setting...................................................................................30
3 Setting of Service Parameter........................................................................................................33
3.1 Activation & Modification of Service Parameter..............................................................33
3.2 Table of Service Parameters..............................................................................................33
3.3 Recovery to Default Setting..............................................................................................35
3.3 List of Standard Figure......................................................................................................37
4 Function of Button Sewing..........................................................................................................41
4.1 Settings..............................................................................................................................41
4.2 List of Standard Pattern in Sewing Button........................................................................42
5 Appendix......................................................................................................................................44

5.1 List of Error Information...................................................................................................48
5.2 System Diagram................................................................................................................51

1
1 General Information
1.1 Supporting Model
SC201 Bar-tacking Machine Control System
1.2 Method for Input
Via Keyboard
1.3 Method for Display
Nixie Tube and LBDs
1.4 Layout of Panel
The operation panel is in a shape of oblong, and it is divided into 2 parts, the display part and the
operational part. The display part consists of 5 nixie tubes and 10 LBDs while the operational part
contains 12 keys. For specific information, please refer to the figure of control panel below.
1.5 Standardization
The function keys use the general figures with the meaning agreed in the trade. The figures are the
internationalized language that users in each country can recognize it.
1.6 Method for Operation
The function keys include the Ready Key, Reset Key, Mode Key, Selection Key and
Thread-catching Switch. For the specific operational method, please refer to the Operational
Instruction.

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2 Operational Instruction
2.1 Name & Description of Buttons on Control Panel
⑴Ready Key
Key for shifting between the setting/programming status of control panel and the sewing status of
sewing machine;
⑵Sewing LED
It is set as: “ON” at sewing status, “OFF” at programming status. User can use the Ready Key for
shifting between these two statuses;
⑶Reset Key
Release the error and restore the set value to the default value;
⑷Mode Key
When the Sewing LED is off, this key can activate the functions for setting parameters or storing
the patterns; when the Sewing LED is on, this key can activate the siding function for threading
actions, which will be automatically turned off in 20 seconds.
⑸＋/Feed Forward Key & －/Feed Backward Key
These two keys are applicable for changing pattern number, rate of scale and feeding cloth
forward/backward.
⑹Selection Key
Select the set item. The Item Selection LED and the set value of the selected item will be

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displayed.
⑺Data Display LED
This LED indicates the set value of the selected items such as the pattern number, scale rate and so
on.
⑻Item Selection LED
The LED of the selected item will be on.
⑼Thread-catching ON/OFF Key
The Validity/Invalidity of thread-catching function can be selected. When it is set as Validity, the
Thread-catching Display LED will be on.
⑽Thread-catching Display LED
When the LED is on, the machine will catch the thread.
⑾Pattern Storage Key
Store the pattern. The stored pattern can be put into sewing as long as user presses this key. The
changes in scale rate, sewing position and so on can also be stored.
2.2 Basic Operation
2.2.1 Settings of Item Data
Please set the items in the following sequence:
1．Turn ON the power switch.
The pattern number of the item selection is lit up, and the pattern number will be displayed at
data display part.
2．Setting of the pattern No.
（1）Press , and then the LED of
will be on.
（2）Press and to display
14 in the Data Display LED
（We take No.14 pattern as an

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3．Setting of the X scale
4．Setting of Scale Rate inY scale
5．Setting of Limitation on Max Speed
6．Setting End
·Press to record the set values like pattern number, X/Y scale rate and so on.
（1） Press , and then the LED of
will be displayed.
（2） Press & to display
100 at Data Display LED
（The Scale Rate in X Direction is set
as 100%）
（1） Press , and then the LED of
will be displayed.
（2） Press & to display
100 at Data Display LED.
（The Scale Rate in Y Direction is set
as 100%）
（1） Press , and then the LED
of will be displayed.
（2） Press & to
display 400 at Data Display
LED
（The limitation is set as 400rpm）
（1） Press .
（2） After the presser goes up, the Sewing LED is on.
At this time the system is in the sewing status

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·Press to reconfirm each set item, but the Sewing LED can’t changes its status.
·Press to turn off the Sewing LED, then each set value of item can be changed
·When the pattern number is 0 (the default setting), pressing will activate the error “E-10”.
At this time, please press the Reset Key to reconfirm the pattern number.
·Without pressing , the pattern number, X/Y scale rate, Max Speed and other setting values
will be unable to be recorded.
2.2.2 Confirmation of Pattern Shape
After selecting the pattern, user shall confirm the shape of the pattern.
If the pattern is far away from the presser, the needle will run into the presser, thus breaks the
needle.
1．Press to light up the Sewing LED
2．Press to select , and then the screen
displays ; step the pedal to
lower the presser and then the screen
displays .
3．In the status of lowering the presser, press .
4．Use and to confirm the shape.
The confirmed pattern for sewing shall be in the
permitted range of the presser.
5．Press to lift presser.
6．Press to release the selection of
(select other data item other than ). After that,
press to end the trial sewing and the

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2.2.3 Sewing
Attention 1：When depressing the pedal to level 1 and lowering the presser, the user can
press & to change the sewing position of pattern. Then the user could start sewing
at the selected position by depressing the pedal to level 2. During the sewing, for the problems like
thread-breakage, user can use this method for mending after releasing the malfunction
Attention 2：Don’t apply the operations in Attention 1 into the operation of pattern trial sewing,
in case the user depresses the pedal to level 2 by mistake, thus start the machine and cause the
dangerous. For the operations in trial sewing, user shall strictly follow the descriptions of
【Confirmation of Pattern Shape】in the above sector.
2.2.4 Change to Other Patterns
1．Put the fabric to the presser section
2．Step on the pedal switch to the level 1, then the
presser goes down. If you detach the foot from the
pedal, the presser will go up.
3．Lower the presser to the next level, and then
depress the pedal to the second level to start sewing
4．At sewing end, the presser will go up and stop at
the initial position.
1．Press to turn off the Sewing LED.
2．Press to select the .
3．Use & to set pattern
number.
4．Set the X/Y scale rate, speed and so on in
the same way
5．Press to turn on the Sewing LED,
thus have access to Sewing status.

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2.2.5 Winding
2.2.6 Independent Thread-trimming Device
Independent thread-trimming, different from the general presser transmission and main-shaft
transmission thread-trimming mechanisms, has the independent control unit, which can control the
whole process of thread-trimming better,
If the storage parameter No.35 is set as 1 (Thread-trimming Forbidden), the machine will not
perform the thread-trimming.
2.2.7 Thread-catching Device
With thread-catching device, the abnormal sewing, like the missing or staining of upper
thread, as well as needle-jumping, can be avoided in the high speed start. The thread-catching
function is only available when the Thread-catching Display LED is on. User can use to
turn on/off this function. When the thread-catching device is OFF, the machine will turn to
low-speed start automatically.
The thread-catching action will be invalid if the Storage Parameter No.35 is set as 1
The winding device will not work just after
power-on. Please set a pattern code and press
to turn on the Sewing LED before the
winding operation.
1．Press to turn off Sewing LED.
2．Press to select the . (It is unable to
select when the Sewing LED is on.)
3．Press to lower the presser and turn on the
Sewing LED.
4. Depress the pedal to start the sewing machine
5．Depress the pedal switch or press or
to stop machine
6．Press to turn off the Sewing LED and
lift the presser. Then become valid.

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(Thread-catching Forbidden). At the same time, becomes invalid.
Matters for attention in using the function for catching upper thread
1．For catching thread, please shorten the upper thread at sewing start.
If the needle is too long, the thread at the backside of the cloth will be pulled out;
meanwhile that too-long needle will easily sew the end of the thread on needle into the seam.
1）The standard length of needle thread in thread-catching shall be 33～36mm.
2）Lengthen the thread after replacing the needle thread. Or when holding the needle
thread at sewing, please set the Thread-catching Key at OFF.
3）When the needle thread held with the thread catcher is rolled in the seams, do not
draw the material forcibly but cut the connecting needle thread with the scissors or
the like. The seams are not damaged since it is the needle thread at the sewing start.
2. In order to make thread-catching action ensure the stable sewing at start, user can shorten
the needle so that less needle thread could be winded in upper side of the cloth.
3. When the type of lower plate (1) that material doesn’t closely contact to the board (2) is
used, needle thread at backside of cloth will be rolled into the seams regardless the length
of the thread or the needle thread will be loose

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1）Press Ready Key and step the front part of
pedal
to lower the presser；
2）Step the front part of pedal
again to
start sewing；
3）During sewing, if user needs to stop
machine immediately, user can step the
back part of the pedal
to stop machine.
If user needs to continue sewing, he just
needs to step the back part again
.
2.2.8 Bottom Thread Counter
The counters are set as Production Counter (Adding method) at the time of delivery. However,
if it is used as the Bottom Thread Counter (subtracting method), the value of parameter No.18
shall be set at 1.
2.2.9 Pause
1. Pedal Stop Function: The new pedal has three levels: Level 1 for lowering presser; Level 2 for
normal sewing; Level 3 for emergency stop.
1）Press to select .
2）Then press .
3）After that, press & to set
number of times that can be sewn with a
bobbin.
4）Finish of sewing in each time will cause the
counter to count down by one.
5）After the machine finishes the set times of
sewing, the monitor will shine for hinting the
user.
6）Replace the bottom thread and press
again. Then the value of counter will restore
to the set value
7）Repeat the steps from 4) to 6).

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2、Panel Pause
After user set the value of No.31 parameter at 1, or the reverse gear of pedal can be used as
the pause key.
1）If user presses or depresses the reverse gear of pedal, the sewing machine will stop and
display the error No.50.
2）The following are the three available operations after the pause:
①Press the Start Switch to start the sewing.
②Press and perform the thread-trimming. After that, use & to adjust the
position and then press start switch to start sewing.
③Press and trim the thread. After that, press again to return to the origin.
2.3 Set PPattern & C Pattern
2.3.1 Use Pattern Key（ ）for Sewing
The saved patterns (No.1~200) can be registered on P1~P50. It is possible to change and
register the scale rate, Max speed limitation and sewing position. With the rolling window of
pattern, user can also register patterns and has access to the pattern from P1~P25 at a time.
·For selecting P6~P25, user can use the combinations of
(simultaneous pressing) shown in the below table at his sewing.
P-No. Selection Key P-No. Selection Key P-No. Selection Key P-No. Selection Key
P1 P1 P8 P1+P4 P15 P4 +P5 P22 P2+P3+P4
P2 P2 P9 P1+P5 P16 P1+P2+P3 P23 P2+P3+P5
P3 P3 P10 P2+P3 P17 P1+P2+P4 P24 P2+P4+P5
P4 P4 P11 P2+P4 P18 P1+P2+P5 P25 P3+P4+P5
P5 P5 P12 P2+P5 P19 P1+P3+P4
P6 P1+P2 P13 P3+P4 P20 P1+P3+P5
P7 P1+P3 P14 P3+P5 P21 P1+P4+P5
1．Registration on Pattern Key
Exp：Register pattern No.3 to P2, X scale rate: 50%; Y scale rate: 80%; Max speed limitation:
2000 rpm, pattern position: 0.5mm to the right and 1mm to the front.
1）Turn on the power, press (the sewing
LED shall be off at this moment) to have
access to Mode Setting (Setting of Storage
Switch).

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2）Use & to display the storage
mode of pattern
3）Press to have access to the pattern
storage mode.
4）Press to select the stored P-No.
This selection can also be done by using
&.
5）Use to select .
Use &to set pattern number.
6）Press and use & to
set the X scale rate at “50”% and the Y
scale rate at “80%”, as well as Max
Speed limitation at “2000”rpm.
7）Press to activate X scale rate
,which is displayed at 0.0. The
stroke in X direction can be changed in
step at 0.1mm. Use & to
set this value at 0.5.
8）Press to activate Y scale rate ,
which is displayed at 0.0. The stroke in Y
direction can be changed in step at 0.1mm.
Use & to set that value at
1.0.
9）Press to end the setting.

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2．Sewing Operation
Example: sew the pattern saved as P2 at first, and then sew the P3.
2.3.2 Sewing with Combination Functions
Store the patterns registered in the sequence as P1~P50 to C1~C20. The sewing pattern will be
changed in order upon the finish of sewing in each time. 30 patterns can be stored in a
combination code at most.
1．Storage of Combination Pattern
Example: Register the combination in order of P1, P2 and P3.
10) Press to end pattern storage mode
11) Press to end Mode Setting and return to
Ordinary Mode
1．Turn on the power.
2．Press .
3．Press to turn on the Sewing LED,
and then the presser will go up.
4．Confirm the pattern shape.
5．If the pattern shape is correct, the machine
will be able to carry out the sewing.
6．After sewing, please press to lower the
presser for searching the origin. After that, the
presser will move to the sewing start point
and go up.
(When the Sewing LED is on, user can also
press P keys to change the pattern.)
7．Perform the operations in Step 4 and Step 5.

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1）Turn on power. Press to have access to
Mode Setting (for setting parameter of
memory). The Sewing LED shall be off at the
moment
2) Use & to display the
Combination Mode
3) Press to turn on the Sewing LED, thus to
have access to the setting mode of combination
pattern. User can select C pattern number from
C1~C20 with & .
4) Press and to set the P1 as the
first pattern in the C1. User can select P pattern
from P1~P50 with &.
5) Press and to set the P2 as the
second pattern in C1. User can select P pattern
from P1~P50 with &.
6) Press and to set the P3 as the
third pattern in C1. User can select P pattern
from P1~P50 with & .
7
)
Press to end the stora
g
e
8) Press to end the storage mode of
combined pattern。
9) Press to end the Mode Setting and
return to the ordinar
y
mode.

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2．Sewing Operation
Example: Sew the C1 pattern.
After the sewing, if user wants to go to the previous pattern or the next pattern, user can press
& when the Sewing LED is on. Then the pattern display will be changed and
the presser will also move to the start point
·After storing the patterns among C1～C20, if the P pattern in P1~P50 id changed, the
content of P pattern with same code will also be changed.。
Confirmation of pattern is necessary for each pattern.
2.4 Debugging Mode
Via this mode, user can perform the operations of maintenance and checking.
1）When the Sewing LED is off, press to call the display of . Then press
at same time.After the ring of buzzer, the system will have access to the
debugging mode via the user level setting mode of memory switch.
（Attention）Not pressing at same time will cause the failure of access to
debugging mode.
2）Press to have access to debugging mode, the monitor will show “CP---” as displayed in
1）Power on the machine
2）Set the pattern number as C1.1 with
&.
3）Press to turn on the Sewing LED. After
that the presser will go up.
4）If the pattern shape is sound, the sewing operation
will proceed.
5）Sew the C1 pattern in the sequence in the
combination. When the last pattern in the
combination is finished, the machine will start
sewing the first pattern and repeat this
combination.

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the following picture: ；
3）Press to perform the display output test. This test will check the display module and
indicator of each LED in cycle; the following is the specific procedure:

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4）Press again to end the display output test. The monitor will display “CP-1” as shown
in the following picture: .