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

Summary

Safety and Warranty Information

General Safety Precautions

Users must read the manual, observe safety signs, and follow operation guidelines for safe use.

Warranty Details

Details warranty period, conditions for repair, and exclusions based on usage and natural disasters.

Interface and Operation Instructions

Main Interface Description

Explains the main interface elements, their keys, and functions on the sewing machine control panel.

Pattern Seam Interface Description

Details the interface for pattern sewing, including pattern number, segments, and stitch settings.

Constant Stitch Sewing Interface

Explains the interface for constant stitch sewing mode, including mode number and segment settings.

User Parameter Setting Interface

Main Shaft Motor Setting

Configures settings related to the main shaft motor, including needle position and speed.

Tight Seam Function Setting

Manages settings for the tight seam function, covering starting and ending seam configurations.

Back-tacking Setting

Configures parameters for back-tacking operations, including speed and mode selections.

Counter Setting

Manages counter settings, such as count selection, current value, and trimming time.

Soft Start Setting

Adjusts soft start parameters, including speed and stitch numbers for gradual startup.

Machine Switch Setting

Configures the functions assigned to manual switches A, B, C, and D for various operations.

Clamping & Tension Setting

Adjusts tension strength, foot lifting action, clamping strength, and thread tension release.

Interface Display

Controls the brightness of the interface display.

Layer Seam Setting

Configures settings for layer seam operations, including rotation speed and stitch length.

Clamp Function Without Any Thrum

Adjusts the delay time and action for the clamp function when no thrum is present.

Advanced Parameter Setting Interface

Trimming Function Setting

Configures trimming functions, including return speed, section speeds, action times, and angles.

Clamp Function Setting

Sets parameters for clamp functions, including start/end angles and wiper thread actions.

Presser Foot Setting

Adjusts presser foot behavior, such as lay down time, lift compensation, speed, and highest lift.

Tension Setting

Configures the starting and ending angles for tension control.

Pedal Setting

Adjusts pedal settings, including speed curve, and voltage points for different pedal positions.

Safety Protection Setting

Configures safety features like machine protection, oil level, high voltage, tension, and trimming protection.

Stitch Length Setting of Stepping Back-tacking

Adjusts stitch length parameters for stepping back-tacking, including zero-point correction and compensation.

Testing Mode

Controls and configures various testing modes for machine functions like sewing, stop, and thread trimming.

State Information

Displays various operational states of the machine, including version, motor speed, and sensor values.

Main Shaft Motor Setting

Configures main shaft motor parameters, including speed limits, position adjustments, and rotation settings.

Clamp Function Without Any Thrum

Adjusts parameters for the clamp function without thrum, such as action time and duty cycle.

Layer Seam Setting

Configures settings for layer seam operations, including rotation speed and stitch length.

Other Setting

Allows for type selection within other general settings.

Error Code List

Common Error Codes

Lists common error codes (E01-E05) with their problems and recommended measures for resolution.

Motor and Communication Errors

Details error codes related to motor operation, communication, and positioning, with troubleshooting steps.

Overview

1. Safety Instructions
2. Guarantee Time
3. Warranty Detail
4. Interface and Operation Instructions
5. Pattern Seam Interface Description
6. Constant Stitch Sewing Interface Description
7. User Parameter Setting Interface
8. Settings include
9. Main Shaft Motor Setting
10. Tight Seam Function Setting
11. Ending Tight Seam
12. Back-tacking Setting
13. Counter Setting
14. Soft Start Setting
15. Machine Switch Setting
16. Clamping & Tension Setting
17. Interface Display
18. Layer Seam Setting
19. Clamp Function Without Any Thrum
20. Advanced Parameter Setting Interface
21. Settings include
22. Trimming Function Setting
23. Clamp Function Setting
24. Presser Foot Setting
25. Tension Setting
26. Pedal Setting
27. Safety Protection Setting
28. Stitch Length Setting of Stepping Back-tacking
29. Stitch Length Adjustment (3.7.3)
30. Testing Mode
31. Autorun Test Mode (3.8.3)
32. State Information
33. Version Number (3.9.1)
34. Main Shaft Motor Setting
35. Clamp Function Without Any Thrum
36. Layer Seam Setting
37. Other Setting
38. Error Code List

This document outlines the safety instructions, interface, operation, parameter settings, and error codes for a sewing machine.

Safety Instructions

Users must read the operation manual completely before installation or operation. All instructions marked with a warning sign must be observed to prevent bodily injuries. The product should be installed and pre-operated by well-trained personnel. Using an extension cable with multiple outlets for power connection is prohibited. When connecting power supply cords, ensure the voltage matches the motor's nameplate (rated voltage ±20%). The machine should not be operated in direct sunlight, outdoors, or where the room temperature is outside the 5°C to 45°C range. Avoid operating near heaters, in areas with dew, or where humidity is below 30% or above 95%. Do not operate in areas with heavy dust, corrosive substances, or volatile gases. The power cord should not be subjected to heavy objects, excessive force, or over-bending. The earth wire of the power cord must be permanently connected to the production plant's system ground with proper size conductors and terminals. All moving parts must be shielded by provided covers. When first turning on the machine, operate it at low speed to check the correct rotation direction.

Always turn off the power before:

• Connecting or disconnecting any connectors on the control box or motor.
• Threading the needle.
• Raising the machine head.
• Repairing or performing any mechanical adjustment.
• When the machine is idling.

Repairs and high-level maintenance should only be performed by appropriately trained electronic technicians. All spare parts for repair must be provided or approved by the manufacturer. Do not hit or ram the product with any objects or force.

Guarantee Time

The warranty period for this product is 1 year from the date of purchase or 2 years from the ex-factory date.

Warranty Detail:

Any trouble found under normal operation within the warranty period will be repaired free of charge. However, maintenance costs will be charged in the following cases, even within the warranty period:

1. Inappropriate use, including: wrong high voltage connection, wrong application, disassembly, repair, modification by incompetent personnel, operation without precaution, operation outside its specification range, or inserting other objects or liquids into the product.
2. Damage caused by fire, earthquake, lightning, wind, flood, salt corrosion, moisture, abnormal power voltage, or any other damage due to natural disaster or inappropriate environments.
3. Damage from dropping after purchasing or damage during transportation by the customer or their shipping agency. Note: While efforts are made to test and manufacture the product for quality assurance, external magnetic interference, electronic static or noise, or unstable power sources may damage it. Therefore, the grounding system of the operating area must guarantee good earth, and a failsafe device (e.g., residual current breaker) is recommended.

Interface and Operation Instructions

The main interface features various icons for different functions:

• Mode Selection: Switches between free sewing, continuous back seam mode, constant stitch sewing, and pattern seam mode.
• Thread Trimming: Sets or cancels the trimming function. Long-pressing switches to trimming function settings.
• Presser Foot Lifting: Switches between automatic presser foot lifting after pause, automatic presser foot lifting after trimming, full function, and function off.
• Half Anti-side Trample Foot Lifting: Sets or cancels this function.
• Auto Function: In constant stitch sewing mode, sets or cancels auto function.
• Back-tacking Pattern: Sets or cancels the back-tacking pattern function.
• Start Back-tacking: Executes starting back seam B segment, or starting back seam (A, B segment) 1 or 2 times. Long-pressing switches to back-tacking settings.
• End Back-tacking: Executes terminating back seam C segment, or terminating back seam (C, D segment) 1 or 2 times. Long-pressing switches to back-tacking settings.
• Needle Stop Position: Switches the needle stop position after sewing (up/down). Long-pressing switches to up position quick adjustment interface.
• Tight Seam: Switches between function OFF, starting tight seam ON, ending tight seam ON, and full function. Long-pressing switches to tight seam function settings.
• Clamp Function Setting: Sets or cancels the clamp function. Long-pressing switches to clamping setting interface.
• Constant Stitch Sewing Switching Key: In constant stitch sewing mode, switches to stitch numbers and segments display interface.
• Parameter Increase/Decrease: Increases or decreases parameters. Long-pressing allows continuous adjustment.
• Set Key: Enters the parameter setting interface.
• Lock Screen Key: Switches between lock screen and unlock.
• Slow Launch Setting: Sets or cancels the slow launch function.
• Advanced Parameter Settings: Double-clicking enters the advanced parameter setting interface.
• Trimming Count Display: Shows the trimming count value. Double-clicking clears the count.
• Sewing Speed Display: Shows the current sewing speed. Clicking allows adjustment using parameter increase/decrease keys.
• Sewing Stitches Length Display: Shows the current stitch length. Clicking allows adjustment using parameter increase/decrease keys.

Pattern Seam Interface Description

• Pattern No.: Range 1-8, default 1. "3" indicates the 3rd pattern.
• Total Number of Segments/Edit Segment: Range 1-10, default 4. "4" represents the total number of segments. Clicking allows selection of the total number of segments. "3" represents the segment No. of the pattern. The figure shows 4 patterns in the 3rd pattern, with data for the 3rd segment.
• Stitch Numbers: Range 1-99, default 1. "1" represents the stitch numbers of the pattern. The figure shows 1 stitch in the 3rd segment of the 3rd pattern.
• Repeat Times: Range 1-9, default 5. "1" represents the repeat times of the pattern. The figure shows 1 repeat time for the 3rd segment of the 3rd pattern.
• Stitches Length: Range 0-5.0, default 4.8. "1.0" represents the stitch length of this pattern. The figure shows a stitch length of 1.0 mm for the 3rd segment of the 3rd pattern.

Constant Stitch Sewing Interface Description

• Constant Stitch Mode No.: Range 1-15, default 4. "4" represents the 4th constant stitch sewing mode.
• Total Number of Segments/Edit Segment: Range 1-4, default 4. "4" represents the total number of segments. Clicking allows selection of the total number of segments. "1" represents the segment No. of constant stitch sewing. The figure shows data for the 1st segment of the 4 segments.
• Stitch Numbers: Range 0-99, default 12. "1" represents the number of stitches in this segment. The figure shows 1 stitch in the 1st segment of the 4 segments.
• Stitches Length: Range 0-5.0, default 3.0. "1.0" represents the stitch length of the constant stitch sewing mode. The figure shows a stitch length of 1.0mm for the 1st segment of the 4 segments.

User Parameter Setting Interface

Pressing the setting key displays the user settings interface. Clicking on a corresponding column enters its settings interface.

Settings include:

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

Main Shaft Motor Setting

• Needles goes up automatically as power turned on (2101): OFF/ON, default OFF.

Tight Seam Function Setting

• Starting Tight Seam (22011): Stitches length range 0-5.0, default 1.0.
• Speed (22012): Range 100-2000, default 900.
• Direction (22013): CW/CCW, default CCW. CW: Clockwise, CCW: Counterclockwise.
• Mode Off (22014): Range 0-12, default 1. When value is 0, starting tight seam mode is turned off.

Ending Tight Seam

• Stitches length (22021): Range 0-5.0, default 0.5.
• Speed (22022): Range 100-2000, default 900.
• Direction (22023): CW/CCW, default CCW.
• Mode Off (22024): Range 0-12, default 1. When value is 0, ending tight seam mode is turned off.

Back-tacking Setting

• Start back-tacking speed (2301): Range 200-3200, default 2000.
• End back-tacking speed (2302): Range 200-3200, default 2000.
• Mode selection for bar-tacking (2303): OFF/ON, default ON.
• Constant-stitch end back-tacking sewing function selection (2304): OFF/ON, default ON.
• Start back-tacking mode selection (2305): OFF/ON, default ON.
• Mode selection at the end of start back-tacking (2306): OFF/ON, default ON.

Counter Setting

• Counter selection (2401): Range 0-2, default 1.
  • 0: Counter does not count.
  • 1: Count up sewing counter (Increases by 1 each time thread is cut; current and set values are the same; count screen displayed).
  • 2: Count-down sewing counter (Counts down by 1 each time thread is trimmed; count screen displayed after current value becomes 0).
• Counter current value/setting value (2402): Range 0-9999, default 0/9999. Current value is actual, setting value is reference.
• Sewing counter trimming time (2403): Range 0-50, default 1.

Soft Start Setting

• Soft start switch (2501): ON/OFF, default OFF.
• Soft start speed (2502): Range 200-1500, default 400.
• Stitch numbers for soft start (2503): Range 1-99, default 1.

Machine Switch Setting

• Manual switch A setting (2601): Range 0-6, default 5.
• Manual switch B setting (2602): Range 0-6, default 3.
• Manual switch C setting (2603): Range 0-6, default 0.
• Manual switch D setting (2604): Range 0-6, default 0.
  • Options for switches (0-6): 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.

Clamping & Tension Setting

• Tension strength setting (2701): Range 1-5, default 3. Parameter P103.
• With or without tension while foot lifting action (2702): ON/OFF, default OFF. Parameter P35.
• Wiping / clamping strength setting (2703): Range 0-11, default 6. Parameter P37.
  • 0: OFF, 1: Wiping function, 2-11: Clamping function (higher value = stronger action).
• Tension function switch (2704): ON/OFF, default ON. Parameter P36.
• Foot lift height of thread tension release start action when knee-control foot lift (2705): Range 0-300, default 115. Parameter P25.

Interface Display

• Brightness (2801): Range 5-100, default 80. Larger value = higher brightness.
• Main interface locked automatically (2802): Range 0-900, default 60.
• Restore factory defaults (2803): No range/default specified.
• Language (2804): Chinese/English, default Chinese.

Layer Seam Setting

• Layer seam mode switch (2901): ON/OFF, default OFF.

Clamp Function Without Any Thrum

• Clamp function without any thrum switch (21001): ON/OFF, default OFF.

Advanced Parameter Setting Interface

Settings include:

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

Trimming Function Setting

• Trimming step return speed (3101): Range 20-400, default 150.
• Trimming first section speed (3102): Range 20-400, default 200.
• Trimming second section speed (3103): Range 20-400, default 70.
• Trimming action times (3104): Range 10-990, default 200.
• Angle of trimming first infeed (3105): Range 0-359, default 259.
• Angle of trimming second infeed (3106): Range 0-359, default 359.
• First trimming distance (3107): Range 0-200, default 80.
• Second trimming distance (3108): Range 0-200, default 135.
• Trimming step return time (3109): Range 10-990, default 80.

Clamp Function Setting

• Clamp start angle (3201): Range 10-359, default 100.
• Clamp end angle (3202): Range 10-359, default 270.
• Wiper thread action time (3203): Range 10-990, default 380.
• Delay time before wiper thread (3204): Range 5-990, default 5.

Presser Foot Setting

• Presser foot lay down time (3301): Range 10-990, default 150. Parameter P52.
• Presser foot lift highness compensation when pedal return to intermediate step at sewing stop (3302): Range 0-160, default 80. Parameter P125.
• Highest of presser foot lift highness (3303): Range 0-200, default 135. Parameter P136.
• Presser foot speed (3304): Range 20-400, default 250. Parameter P146.
• Zero correction of foot lifting motor (3305): Range -100~100, default 0. Parameter P130.
• Presser foot step motor steady current (3306): Range 1-8, default 6. Parameter P150.
• Presser foot motor maximum current (3307): Range 1-12, default 10. Parameter P152.
• Electronic knee-control device the lowest presser foot lift height (3308): Range 0-200, default 20. Parameter P135.
• Electronic knee-control device the highest presser foot lift height (3309): Range 0-200, default 160. Parameter P126.
• Highest of presser foot lift highness limit (3310): Range 0-300, default 150. Parameter P172.

Tension Setting

• Tension starting angle (3401): Range 1-359, default 30.
• Tension ending angle (3402): Range 1-359, default 180.

Pedal Setting

• Speed curve adjustment (%) (3501): Range 10-100, default 80.
• Voltage of forward step pedal point (3502): Range 30-1000, default 520.
• Voltage of intermediate step pedal point (3503): Range 30-1000, default 420.
• Voltage of half heeling pedal point (3504): Range 30-1000, default 270.
• Voltage of heeling pedal point (3505): Range 30-1000, default 130.
• Delay time of half heeling pedal (3506): Range 10-900, default 100.

Safety Protection Setting

• Machine protection switch testing (3601): Range 0-2, default 1.
  • 0: Disable, 1: Testing zero signal, 2: Testing positive signal.
• Oil level lower protection testing (3602): OFF/ON, default OFF.
• Setting high voltage protection value (3603): Range 850-1023, default 880. If external input AC voltage converts to DC voltage and exceeds this value, system alarms E01 and stops.
• Tension electromagnet protection time (S) (3604): Range 1-60, default 2.
• Trimming protection switch (3605): OFF/ON, default OFF.

Stitch Length Setting of Stepping Back-tacking

• Back-tacking motor zero-point correction (3701): Range -100~100, default 50.
• Normal stitch length (3702): Range 0-5.0, default 3.0.
• Stitch length reference value setting (3703): No range/default specified.
• Tacking stitch length compensation (3704): Range 0-100, default 50.
• Back-tacking stitch length compensation (3705): Range 0-100, default 58.
• Back-tacking stitch compensation (3706): Range 0-200, default 167.
• Back-tacking step motor steady current (3707): Range 1-12, default 6.
• Back-tacking step motor maximum current (3708): Range 1-12, default 12.
• Manual close stitches distance (3709): Range 0-5.0, default 2.0.
• Correction stitches distance of manual button A (3710): Range 0-5.0, default 3.0.
• Correction stitches distance of manual button B (3711): Range 0-5.0, default 3.0.
• Correction stitches distance of manual button C (3712): Range 0-5.0, default 3.0.
• Correction stitches distance of manual button D (3713): Range 0-5.0, default 3.0.
• Maximum stitch length limit (3714): Range 0-8.0, default 5.0.

Stitch Length Adjustment (3.7.3)

Provides a table for forward and backward stitch length adjustments from 1mm to 8mm.

Testing Mode

• Testing mode switch (3801): ON-OFF, default OFF. Performs cycle of start-sewing-stop-thread trimming at test speed.
• Output function single testing (3802): Allows testing of trimming and presser foot. Clicking moves the step motor by one stroke.
• Testing mode setting (3803): No range/default specified.

Autorun Test Mode (3.8.3)

Allows setting up to 5 periods for testing, including:

• Testing Speed: When 0, current cycle is not executed.
• Running Time (0.1s)
• Stop Time (0.1s)
• Motor Running Direction: CCW (Counterclockwise).
• Periodic Time (m): No limit at time 0.

State Information

• Version number (22901): No range/default specified.
• Motor speed display (22902): Displays current motor speed.
• Needle position angle value (22903): Displays current motor angle.
• Pedal AD value (22904): Displays current AD value of the pedal.
• Busbar voltage AD value (22905): No range/default specified.
• Oil level sensor AD value (22906): No range/default specified.
• Knee moving position sensor AD value (22907): No range/default specified.
• Trimming position sensor AD value (22908): No range/default specified.
• Presser foot lift highness sensor AD value (22909): No range/default specified.
• Grating signal (22910): No range/default specified.

Version Number (3.9.1)

• Control box version number (39101): No range/default specified.
• Control box vice version number (39102): No range/default specified.
• Display board version number (39103): No range/default specified.
• Step drive version number (39104): No range/default specified.

Main Shaft Motor Setting

• Main shaft motor maximum speed limit (31001): Range 0-5000, default 3700.
• Main shaft motor zero-point correction (31002): No range/default specified.
• Up position quick adjustment (31003): No range/default specified.
• Down position quick adjustment (31004): No range/default specified.
• Speed limit of manual back-tacking (31005): Range 0-3200, default 0.
• Reverse angle function selection after trimming (31006): ON/OFF, default OFF.
• Adjustment of reverse angle after trimming (31007): Range 10-50, default 40.
• Up position value (31008): Range 0-359, default 100.
• Down position value (31009): Range 0-359, default 275.
• Low (positioning) speed (31010): Range 100-500, default 210.
• Stopping strength as half-way (31011): Range 1-45, default 16.
• Stopping strength after trimming (31012): Range 1-50, default 20.
• Up / down needle position distance value (31013): Range 15-359, default 175. In quick setting, lower positioning value is calculated based on upper and lower positioning distance values.
• Main shaft motor rotation direct setting (31014): CCW/CW, default CCW.
• Main shaft motor maximum current (A) (31015): Range 0-20, default 10.
• Main shaft motor lockedrotor current (A) (31016): Range 0-20, default 10.
• Main shaft motor normal current (A) (31017): Range 0-20, default 16.
• Main shaft motor encoder type selection (31018): No magnetic ring / With magnetic ring, default No magnetic ring.

Clamp Function Without Any Thrum

• Delay time before hook thread with clamp function without any thrum (31101): Range 0-990, default 100.
• Hook thread action time with clamp function without any thrum (31102): Range 0-990, default 30.
• Return back time of hook thread with clamp function without any thrum (31103): Range 0-990, default 30.
• Duty cycle for hook thread with clamp function without any thrum (31104): Range 0-100, default 0.
• Suction time for clamp function without any thrum (31105): Range 0-5000, default 1000.
• Duty cycle for pull thread with clamp function without any thrum (31106): Range 0-100, default 80.

Layer Seam Setting

• Layer seam mode rotation speed over thick (31201): Range 200-3700, default 2000.
• Fabric thickness sensor AD value (31202): Range 0-1023, default 530.
• Layer seam proportion (31203): Range 1-100, default 10.
• Layer seam stitch length limit (31204): Range 0-5.0, default 4.0.

Other Setting

• Type selection (31301): Range 1-50, default 37. Parameter P70.

Error Code List

• E01 Over-voltage: Turn off system power, check if power supply voltage is correct (not exceeding specified rated voltage).
• E02 Low-voltage: Turn off system power, check if power supply voltage is correct (not lower than specified rated voltage).
• E03 Abnormal communication between main CPU and driver CPU: Turn off power, check connector to operation panel and cable condition.
• E05 Speed control unit connection is abnormal: Turn off power, check connector to speed controller and cable condition.
• E07 Main shaft motor rotating abnormally: Rotate handwheel to check if spindle motor is locked. Check encoder cable and motor power cable connections. Check power supply voltage and if sewing speed is too high.
• E08-0 Communication abnormal: No specific measure provided.
• E08-2 Back-tacking step motor over current: Turn off machine, check if motor is stuck. Rule out mechanical failure. If motor turns normally, check for bad connection or looseness. Fix and turn on.
• E08-4 Back-tacking step start can't find original point: Same as E08-2.
• E08-16 Trimming step motor over current: Same as E08-2.
• E08-32 Trimming step motor can't find original point: Same as E08-2.
• E09 Positioning signal error / E11: Turn off machine, check if encoder has bad connection or is loose. Fix and turn on. If errors persist, replace control box and call customer service.
• E10 Solenoid over-current protection: Turn off system power, check if solenoid (solenoid valve) connector or solenoid (solenoid valve) is broken.
• E14 Encoder signal error: Turn off system power, check motor encoder connector for looseness or falling off. Renew to normal and restart.
• E15 Main shaft motor overcurrent error: Turn off power, then turn it on again.
• E16 Trimming step motor abnormal: Turn off system power, check if trimming mechanism is back to correct position. Check trimming setting.
• E17 Machine protection switch is not in the correct position: Turn off machine, check if machine is turned over, or mercury switch is shifted or damaged.
• E20 Motor failed to start (Electrical angle error): Turn off machine, check if encoder and motor have bad connection or are too loose. Fix and turn on.

Baoyu GT-288C-D4 Specifications

General

Brand	Baoyu
Model	GT-288C-D4
Category	Sewing Machine
Language	English