Baoyu GT-288C-D4 User manual

Safety Instruction
1. Users are required to read the operation manual completely and carefully before installation
or operation.
2. All the instruction marked with sign must be observed or executed; otherwise, bodily
injuries might occur.
3. The product should be installed and pre-operated by well-trained persons.
4. For perfect operation and safety, it is prohibited that using extension cable with multi-outlet
for power connection.
5. When connecting power supply cords to power sources, it is necessary to make sure that the
power voltage matches the rated voltage ±20% indicated on the motor’s name plate.
6. Don＇t operate in direct sun light，outdoors area and where the room temperature is over
45°C or below 5°C.
7. Please avoid operating near the heater at dew area or at the humidity below 30% or above
95%.
8. Don＇t operate in area with heavy dust, corrosive substance or volatile gas.
9. Avoid power cord being applied by heavy objects or excessive force, or over bend.
10. The earth wire of power cord must be connected to the system ground of the production plant
by proper size of conductions and terminals. This connection should be fixed permanently.
11. All the moving portions must be prevented to be exposed by the parts provided.
12. Turing on the machine in the first time, operate the sewing machine at low speed and check
the correct rotation direction.
13. Turn off the power before the following operation：
a) Connecting or disconnecting any connectors on the control box or motor.
b) Threading needle.
c) Raising the machine head.
d) Repairing or doing any mechanical adjustment.
e) Machines idling.
14. Repairs and high level maintenance work should only be carried out by electronic technicians
with appropriate training.
15. All the spare parts for repair must be provided or approved by the manufacturer.
16. Don’t use any objects or force to hit or ram the product.
Guarantee Time
Warranty period of this product is 1 year dated from purchasing, or within 2 years from
ex-factory date.
Warranty Detail:
Any trouble found within warranty period under normal operation, it will be repaired free of
charge. However, maintenance cost will be charged in the following cases even if within
warranty period:
1. Inappropriate use, including: wrong connecting high voltage, wrong application, disassemble,
repair, modification by incompetent personnel, or operation without the precaution, or
operation out of its specification range, or inserting other objects or liquids into the product.
2. Damage by fire, Earth quake, lighting, wind, flood, salt corrosive, moisture, abnormal power
voltage and any other damage cause by the natural disaster or by the inappropriate
environments.
3. Dropping after purchasing or damage in transportation by customer himself or by customer’s
shipping agency
Note: We make our best effort to test and manufacture the product for assuring the quality.
However, it is possible that this product can be damaged due to external magnetic
interference and electronic static or noise or unstable power source more than expected;
therefore the grounding system of operate area must guarantee the good earth and it’s also
recommended to install a failsafe device. (Such as residual current breaker)
1

1. Interface and Operation Instructions
1.1 Main Interface Description
Name
Key
Indicate
Clamp function
setting
If click, set used or cancelled clamp function.
If long-press, switch to clamping setting interface
Constant stitch
sewing switching
key
In constant stitch sewing mode, if click, switch to stitch numbers and segments display
interface.
Parameter increase
If click, it can increase parameters.
If long-press, it can continuously increase parameters.
Parameter
decrease
If click, it can decrease parameters.
If long-press, it can continuously decrease parameters.
Set key
If click, enter the parameter setting interface.
Lock screen key
If you click, switch the lock screen and unlock.
Mode selection
If click, shift to free sewing, continuous back seam mode, constant stitch sewing and
pattern seam mode.
Start back-tacking
If click, executions starting back seam B segment, execution starting back seam (A, B
segment) 1 time or execution starting back seam (A, B segment) 2 times.
If long-press, switch to back-tacking setting.
End back-tacking
If click, execution terminates back seam C segment, execution terminates back seam (C,
D segment) 1time or execution terminates back seam (C, D segment) 2 times.
If long-press, switch to back-tacking setting.
Thread trimming
If click, set used or cancelled trimming function.
If long-press, switch to trimming function setting.
Needle stop
position
If click, switch the needle stop position after sewing (up position / down position).
If long-press, switch to up position quick adjustment interface.
2

Tight seam
If click, switch between function OFF, starting tight seam function ON, ending tight
seam function ON and full function in turn.
If long-press, switch to tight seam function setting.
Presser foot lifting
If click, switch between automatic presser foot lifting after pause, automatic presser foot
lifting after trimming, full function and function off in turn.
Half anti-side
trample foot lifting
If click, set used or cancelled half anti-side trample foot lifting function.
Auto function
In constant stitch sewing mode, If click, set used or cancelled auto function.
Back-tacking
pattern
If click, set used or cancelled back-tacking pattern function.
Slow launch
setting
If click, set used or cancelled slow launch function.
Advanced
parameter settings
If double click, enter the advanced parameter setting interface.
Trimming count
display
The trimming count value is displayed.
If double click, the count is cleared.
Sewing speed
display
The sewing speed of the current mode is displayed.
If click, select this data, and you can adjust the data by parameter increase and decrease
keys.
Sewing stitches
length display
The stitch length of the current mode is displayed.
If click, select this data, and you can adjust the data by parameter increase and decrease
keys.
1.2 Pattern Seam Interface Description
No.
Items
Range
Default
Description
1
1-8
1
"3" stands for the number of the pattern. The
figure represents the 3rd pattern.
3

2
1-10
"4" represents the total number of segments of
the pattern. If you click, you can select the total
number of segments.
"3" represents the segment No. of the pattern.
As shown in the figure, there are 4 patterns in the
3rd pattern. The figure is the data of the 3rd
segment.
3
1-99
1
"1" represents the stitch numbers of the pattern.
As shown in the figure, the number of stitches in
the 3rd segment of the 3rd pattern is 1.
4
1-9
5
"1" represents the repeat times of the pattern. As
shown in the figure, the repeat times for the 3rd
segment of the 3rd pattern is 1.
5
0-5.0
4.8
"1.0" represents the stitches length of this pattern.
As shown in the figure, the stitches length of the
3rd segment of the 3rd pattern is 1.0 mm.
1.3 Constant Stitch Sewing Interface Description
No.
Items
Range
Default
Description
1
1-15
4
"4" represents the number of constant stitch
sewing mode. As shown in the figure, it
represents 4th constant stitch sewing mode.
2
1-4
"4" represents the total number of segments of
the constant stitch sewing mode. If clicked, the
total number of segments can be selected.
"1" represents the segment No. of constant stitch
sewing.
As shown in the figure, it represents the data of
the 1st segment of the 4 segments.
3
0-99
12
"1" represents the number of stitches in this
segment. As shown in the figure, the number of
stitches in the 1st segment of the 4 segments is 1.
4

4
0-5.0
3.0
"1.0" represents the stitches length of the constant
stitch sewing mode. As shown in the figure, the
stitches length of the 1st segment of the 4
segments is 1.0mm.
2 User parameter setting interface
If you press the setting key in other screen, the user settings interface is displayed.
If you click on the corresponding column can enter the corresponding settings interface.
No.
Setting
1
Main shaft motor setting
2
Tight seam function setting
3
Back-tacking setting
4
Counter setting
5
Soft start setting
6
Machine switch setting
7
Clamp & tension setting
8
Interface display
9
Layer seam setting
10
Clamp function without any thrum
2.1 Main shaft motor setting
No.
Items
Range
Default
Description
2101
Needles goes up
automatically as power
turned on
OFF/ON
OFF
2.2 Tight seam function setting
2.2.1 Starting tight seam
No.
Items
Range
Default
Description
22011
0-5.0
1.0
Stitches length
5

22012
100-2000
900
Speed
22013
CW/CCW
CCW
CW: Clockwise
CCW: Counterclockwise
22014
0-12
1
When the value is 0, the starting tight seam
mode is turned off.
2.2.2 Ending tight seam
No.
Items
Range
Default
Description
22021
0-5.0
0.5
Stitches length
22022
100-2000
900
Speed
22023
CW/CCW
CCW
CW: Clockwise
CCW: Counterclockwise
22024
0-12
1
When the value is 0, the ending tight seam mode
is turned off.
2.3 Back-tacking setting
No.
Items
Range
Default
Description
2301
Start back-tacking speed
200-3200
2000
2302
End back-tacking speed
200-3200
2000
2303
Mode selection for
bar-tacking
OFF/ON
ON
2304
The constant-stitch whether
can execute end
back-tacking sewing
function selection
OFF/ON
ON
2305
Star back-tacking mode
selection
OFF/ON
ON
2306
Mode selection at the end
of start back-tacking
OFF/ON
ON
2.4 Counter setting
No.
Items
Range
Default
Description
2401
Counter selection
0-2
1
0: Counter does not count
1: Count up sewing counter (Each time the thread is
cut, the count is increased by 1; the current value and
the set value are the same, and the count screen is
displayed.)
2: Count-down sewing counter (1 counts each time the
thread is trimmed; the count screen is displayed after
the current value becomes 0)
2402
Counter current value
/setting value
0-9999
0/9999
The current value is the current actual value; the setting
value is a reference value
2403
Sewing counter trimming
time
0-50
1
2.5 Soft start setting
No.
Items
Range
Default
Description
6

2501
Soft start switch
ON/OFF
OFF
2502
Soft start speed
200-1500
400
2503
Stitch numbers for soft start
1-99
1
2.6 Machine switch setting
No.
Items
Range
Default
Description
2601
Manual switch A setting
0-6
5
0: OFF
1: half stitch
2: one stitch
3: continuous half stitch
4: continuous one stitch
5: Back-tacking when machine stop or pause
6: Tight seam function
2602
Manual switch B setting
0-6
3
0: OFF
1: half stitch
2: one stitch
3: continuous half stitch
4: continuous one stitch
5: Back-tacking when machine stop or pause
6: Tight seam function
2603
Manual switch C setting
0-6
0
0: OFF
1: half stitch
2: one stitch
3: continuous half stitch
4: continuous one stitch
5: Back-tacking when machine stop or pause
6: Tight seam function
2604
Manual switch D setting
0-6
0
0: OFF
1: half stitch
2: one stitch
3: continuous half stitch
4: continuous one stitch
5: Back-tacking when machine stop or pause
6: Tight seam function
2.7 Clamping & tension setting
No.
Items
Range
Default
Description
Parameter
2701
Tension strength setting
1-5
3
P103
2702
With or without tension
while foot lifting action
ON/OFF
OFF
P35
2703
Wiping / clamping
strength setting
0-11
6
0: OFF
1: Wiping function
2～11: Clamping function, the higher the
value, the stronger the action.
P37
2704
Tension function switch
ON/OFF
ON
P36
2705
The foot lift height of
thread tension release
start action when
knee-control foot lift
0-300
115
P25
2.8 Interface display
No.
Items
Range
Default
Description
2801
Brightness
5-100
80
The larger the value, the higher the brightness.
7

2802
Main interface locked
automatically
0-900
60
2803
Restore factory defaults
2804
Language
Chinese /
English
Chinese
2.9 Layer seam setting
No.
Items
Range
Default
Description
2901
Layer seam mode switch
ON/OFF
OFF
2.10 Clamp function without any thrum
No.
Items
Range
Default
Description
21001
Clamp function without
any thrum switch
ON/OFF
OFF
3 Advanced parameter setting interface
No.
Setting
1
Trimming function setting
2
Clamp function setting
3
Foot lifting setting
4
Tension setting
5
Pedal setting
6
Safety protection setting
7
Stitch length setting of stepping back-tacking
8
Testing mode
9
State information
10
Main shaft motor setting
11
Clamp function without any thrum
12
Layer seam setting
13
Other settings
3.1 Trimming function setting
No.
Items
Range
Default
Description
3101
Trimming step return speed
20-400
150
3102
Trimming first section
speed
20-400
200
3103
Trimming second section
speed
20-400
70
3104
Trimming action times
10-990
200
3105
The angle of trimming first
infeed
0-359
259
3106
The angle of trimming
second infeed
0-359
359
3107
First trimming distance
0-200
80
3108
Second trimming distance
0-200
135
3109
Trimming step return time
10-990
80
3.2 Clamp function setting
8

No.
Items
Range
Default
Description
3201
Clamp start angle
10-359
100
3202
Clamp end angle
10-359
270
3203
Wiper thread action time
10-990
380
3204
The delay time before
wiper thread
5-990
5
3.3 Presser foot setting
No.
Items
Range
Default
Description
Parameter
3301
Presser foot lay down
time
10-990
150
P52
3302
Presser foot lift highness
compensation when
pedal return to
intermediate step at
sewing stop
0-160
80
P125
3303
The highest of presser
foot lift highness
0-200
135
P136
3304
Presser foot speed
20-400
250
P146
3305
Zero correction of foot
lifting motor
-100～100
0
P130
3306
Presser foot step motor
steady current
1-8
6
P150
3307
Presser foot motor
maximum current
1-12
10
P152
3308
Electronic knee-control
device the lowest presser
foot lift height
0-200
20
P135
3309
Electronic knee-control
device the highest
presser foot lift height
0-200
160
P126
3310
The highest of presser
foot lift highness limit
0-300
150
P172
3.4 Tension setting
No.
Items
Range
Default
Description
3401
Tension starting angle
1-359
30
3402
Tension ending angle
1-359
180
3.5 Pedal setting
No.
Items
Range
Default
Description
3501
Speed curve adjustment
(%)
10-100
80
3502
The voltage of forward
step pedal point
30-1000
520
3503
The voltage of
intermediate step pedal
point
30-1000
420
3504
The voltage of half heeling
pedal point
30-1000
270
3505
The voltage of heeling
pedal point
30-1000
130
3506
Delay time of half heeling
pedal
10-900
100
9

3.6 Safety protection setting
No.
Items
Range
Default
Description
3601
Machine protection switch
testing
0-2
1
0: Disable
1: Testing zero signal
2: Testing positive signal
3602
Oil level lower protection
testing
OFF/ON
OFF
3603
Setting high voltage
protection value
850-1023
880
When the external input AC voltage is converted into
DC voltage and the value exceeds the set value, the
system will alarm E01 and stop working.
3604
Tension electromagnet
protection time
1-60
2
Electromagnet working protection time (S)
3605
Trimming protection
switch
OFF/ON
OFF
3.7 Stitch length setting of stepping back-tacking
No.
Items
Range
Default
Description
3701
Back-tacking motor
zero-point correction
-100～100
50
3702
Normal stitch length
0-5.0
3.0
3703
Stitch length reference value
setting
3704
Tacking stitch length
compensation
0-100
50
3705
Back-tacking stitch length
compensation
0-100
58
3706
Back-tacking stitch
compensation
0-200
167
3707
Back-tacking step motor
steady current
1-12
6
3708
Back-tacking step motor
maximum current
1-12
12
3709
Manual close stitches distance
0-5.0
2.0
3710
Correction stitches distance of
manual button A
0-5.0
3.0
3711
Correction stitches distance of
manual button B
0-5.0
3.0
3712
Correction stitches distance of
manual button C
0-5.0
3.0
3713
Correction stitches distance of
manual button D
0-5.0
3.0
3714
Maximum stitch length limit
0-8.0
5.0
3.7.3 Stitch length adjustment
Forward
Stitch length
Backward
Stitch length
1mm
1mm
2mm
2mm
3mm
3mm
4mm
4mm
5mm
5mm
6mm
6mm
7mm
7mm
8mm
8mm
10

3.8 Testing mode
No.
Items
Range
Default
Description
3801
Testing mode switch
ON-OFF
OFF
(Perform the cycle of start-sewing-stop-thread
trimming at the test speed)
3802
Output function single testing
3803
Testing mode setting
3.8.2 Output function single testing
Trimming
Presser foot
Note: Click Trimming or presser foot, and the step motor will move by one stroke.
3.8.3 Autorun test mode
Period
Testing Speed (When the
test speed is 0,the current
cycle is not executed)
Running
Time (0.1s)
Stop Time
(0.1s)
Motor
Running
Direction
Periodic Time (m)
(No limit at time 0)
1
3500
30
10
CCW
0
2
0
0
0
CCW
0
3
0
0
0
CCW
0
4
0
0
0
CCW
0
5
0
0
0
CCW
0
3.9 State information
No.
Items
Range
Default
Description
22901
Version number
22902
Motor speed display
Display current motor speed
22903
Needle position angle value
Display the current motor angle of the machine
22904
Pedal AD value
Display the current AD value of the pedal
22905
Busbar voltage AD value
22906
Oil level sensor AD value
22907
Knee moving position sensor
AD value
22908
Trimming position sensor
AD value
22909
Presser foot lift highness
sensor AD value
22910
Grating signal
3.9.1 Version number
No.
Items
Range
Default
Description
39101
Control box version number
11

39102
Control box vice version
number
39103
Display board version
number
39104
Step drive version number
3.10 Main shaft motor setting
No.
Items
Range
Default
Description
31001
Main shaft motor maximum
speed limit
0-5000
3700
31002
Main shaft motor zero-point
correction
31003
Up position quick
adjustment
31004
Down position quick
adjustment
31005
Speed limit of manual
back-tacking
0-3200
0
31006
Reverse angle function
selection after trimming
ON/OFF
OFF
31007
Adjustment of reverse angle
after trimming
10-50
40
31008
Up position value
0-359
100
31009
Down position value
0-359
275
31010
Low (positioning) speed
100-500
210
31011
Stopping strength as
half-way
1-45
16
31012
Stopping strength after
trimming
1-50
20
31013
Up / down needle position
distance value
15-359
175
In the quick setting interface of the needle
position for the upper and lower stops, when
the upper positioning value is saved, the lower
positioning value will be automatically
calculated based on the upper and lower
positioning distance values.
31014
Main shaft motor rotation
direct setting
CCW/CW
CCW
CW: Clockwise
CCW: Counterclockwise
31015
Main shaft motor maximum
current (A)
0-20
10
31016
Main shaft motor
lockedrotor current (A)
0-20
10
31017
Main shaft motor normal
current (A)
0-20
16
31018
Main shaft motor encoder
type selection
No magnetic
ring / With
magnetic ring
No magnetic
ring
3.11 Clamp function without any thrum
No.
Items
Range
Default
Description
31101
The delay time before
hook thread with clamp
function without any
0-990
100
12

thrum
31102
The hook thread action
time with clamp function
without any thrum
0-990
30
31103
The return back time of
hook thread with clamp
function without any
thrum
0-990
30
31104
Duty cycle for hook
thread with clamp
function without any
thrum
0-100
0
31105
The suction time for
clamp function without
any thrum
0-5000
1000
31106
Duty cycle for pull thread
with clamp function
without any thrum
0-100
80
3.12 Layer seam setting
No.
Items
Range
Default
Description
31201
Layer seam mode rotation
speed over thick
200-3700
2000
31202
Fabric thickness sensor
AD value
0-1023
530
31203
Layer seam proportion
1-100
10
31204
Layer seam stitch length
limit
0-5.0
4.0
3.13 Other setting
No.
Items
Range
Default
Description
Parameter
31301
Type selection
1-50
37
P70
4 Error Code List
Error Code
Problem
Measure
E01
Over-voltage
Turn off the system power and check whether the power supply voltage is
correct. (Or whether it exceeds the specified rated voltage).
E02
Low-voltage
Turn off the system power and check whether the power supply voltage is
correct. (Or whether it is lower than the specified rated voltage).
E03
Abnormal communication between
the main CPU and the driver CPU
Turn off the power and check whether the connector is connected to the
operation panel and the cable condition.
E05
Speed control unit connection is
abnormal
Please turn off the power and check whether the connector is connected to the
speed controller and the cable condition.
13

E07
Main shaft motor rotating
abnormally
Please rotate handwheel to check if the spindle motor is locked. Check if the
encoder cable of the motor and the power cable of the motor are connected to the
connector. Check if the power supply voltage is normal and whether the sewing
speed is too high.
E08-0
Communication abnormal
Turn off the machine, check if motor is stuck. If it is stuck, you have to rule out
the mechanical failure. If turn normal, please check if the motor in bad
connection or is too loose. To get it right and turn on.
E08-2
Back-tacking step motor over current
E08-4
Back-tacking step start can’t find
original point
E08-16
Trimming step motor over current
E08-32
Trimming step motor can’t find
original point
E09
E11
Positioning signal error
Turn off the machine, please check if the encoder in bad connection or is too
loose. To get it right and turn on. If there are still errors, please replace the
control box and call for customer service.
E10
Solenoid over-current protection
Turn off the system power supply, please check the solenoid (solenoid valve)
connector or solenoid (solenoid valve) is broken or not.
E14
Encoder signal error.
Turn off the system power supply, please check motor encoder connector if loose
or fall off, renew to normal then restart system.
E15
Main shaft motor overcurrent error
Turn off the power, and then turn it on again.
E16
Trimming step motor abnormal
Turn off the system power supply, please check the trimming mechanism is
whether back to correct position; Please check the trimming setting is right or
not.
E17
Machine protection switch is not in
the correct position
Turn off the machine, check if the machine is turn over, or the mercury switch is
shifted or damaged.
E20
Motor failed to start (Electrical angle
error)
Turn off the machine, please check if the encoder and motor in bad connection
or is too loose. To get it right and turn on.
14