Brother S-7200C User Manual

SERVICE MANUAL

S-7200C

Please read this manual before making any adjustments.

SINGLE NEEDLE DIRECT DRIVE STRAIGHT LOCK STITCHER WITH THREAD TRIMMER

This service manual is intended for S-7200C; be sure to read the S-7200C instruction manual before this manual.

Carefully read the “SAFETY INSTRUCTIONS” and the whole of this manual to understand this product before you start maintenance.

As a result of research and improvements regarding this product, some details of this manual may not be the same as those for the product you purchased. If you have any questions regarding this product, please contact a Brother dealer.

S-7200C

SAFETY INSTRUCTIONS

[1] Safety indications and their meanings

This service manual and the indications and symbols that are used on the machine itself are provided in order to ensure safe operation of this machine and to prevent accidents and injury to yourself or other people. The meanings of these indications and symbols are given below.

Indications

DANGER

CAUTION

Symbols

· · · · ·

The instructions which follow this term indicate situations where failure to follow the instructions will result in death or serious injury.

The instructions which follow this term indicate situations where failure to follow the instructions could cause injury when using the machine or physical damage to equipment and surroundings.

This symbol ( ) indicates something that you should be careful of. The picture inside the triangle indicates the nature of the caution that must be taken. (For example, the symbol at left means “beware of injury”.)

This symbol ( ) indicates something that you must not do.

This symbol ( ) indicates something that you must do. The picture inside the circle indicates the nature of the thing that must be done. (For example, the symbol at left means “you must make the ground connection”.)

S-7200C

i

[2] Notes on safety

Wait at least 5 minutes after turning off the power switch and disconnecting the power cord from the wall outlet before opening the cover of the control box. Touching areas where high voltages are present can result in severe injury.

DANGER

CAUTION

Environmental requirements

Use the sewing machine in an area which is free from sources of strong electrical noise such as electrical line noise or static electric noise. Sources of strong electrical noise may cause problems with correct operation.

Any fluctuations in the power supply voltage should be within ±10% of the rated voltage for the machine. Voltage fluctuations which are greater than this may cause problems with correct operation.

The power supply capacity should be greater than the requirements for the sewing machine's power consumption. Insufficient power supply capacity may cause problems with correct operation.

Machine installation should only be carried out by a qualified technician.

Contact your Brother dealer or a qualified electrician for any electrical work that may need to be done.

The sewing machine weighs more than 45 kg. The installation should be carried out by two or more people.

Do not connect the power cord until installation is complete. The machine may operate if the treadle is depressed by mistake, which could result in injury.

Turn off the power switch before inserting or removing the plug, otherwise damage to the control box could result.

Be sure to connect the ground. If the ground connection is not secure, you run a high risk of receiving a serious electric shock, and problems with correct operation may also occur.

When securing the cords, do not bend the cords excessively or fasten them too hard with staples, otherwise there is the danger that fire or electric shocks could occur.

The ambient temperature should be within the range of 5°C to 35°C during use. Temperatures which are lower or higher than this may cause problems with correct operation.

The relative humidity should be within the range of 45% to 85% during use, and no dew formation should occur in any devices. Excessively dry or humid environments and dew formation may cause problems with correct operation.

In the event of an electrical storm, turn off the power and disconnect the power cord from the wall outlet. Lightning may cause problems with correct operation.

Installation

If using a work table which has casters, the casters should be secured in such a way so that they cannot move.

Secure the table so that it will not move when tilting back the machine head. If the table moves, it may crush your feet or cause other injuries.

Use both hands to hold the machine head when tilting it back or returning it to its original position. If only one hand is used, the weight of the machine head may cause your hand to slip, and your hand may get caught.

Be sure to wear protective goggles and gloves when handling the lubricating oil and grease, so that they do not get into your eyes or onto your skin, otherwise inflammation can result. Furthermore, do not drink the oil or eat the grease under any circumstances, as they can cause vomiting and diarrhea. Keep the oil out of the reach of children.

ii

S-7200C

CAUTION

Sewing

This sewing machine should only be used by operators who have received the necessary training in safe use beforehand.

The sewing machine should not be used for any applications other than sewing.

Be sure to wear protective goggles when using the machine. If goggles are not worn, there is the danger that if a needle breaks, parts of the broken needle may enter your eyes and injury may result.

Turn off the power switch at the following times. The machine may operate if the treadle is depressed by mistake, which could result in injury.

・ When threading the needle ・ When replacing the bobbin and needle ・ When not using the machine and when leaving

the machine unattended

If using a work table which has casters, the casters should be secured in such a way so that they cannot move.

Turn off the power switch before carrying out cleaning. The machine may operate if the treadle is depressed by mistake, which could result in injury.

Secure the table so that it will not move when tilting back the machine head. If the table moves, it may crush your feet or cause other injuries.

Use both hands to hold the machine head when tilting it back or returning it to its original position. If only one hand is used, the weight of the machine head may cause your hand to slip, and your hand may get caught.

Attach all safety devices before using the sewing machine. If the machine is used without these devices attached, injury may result.

Do not touch any of the moving parts or press any objects against the machine while sewing, as this may result in personal injury or damage to the machine.

Secure the table so that it will not move when tilting back the machine head. If the table moves, it may crush your feet or cause other injuries.

Use both hands to hold the machine head when tilting it back or returning it to its original position. If only one hand is used, the weight of the machine head may cause your hand to slip, and your hand may get caught.

If an error occurs in machine operation, or if abnormal noises or smells are noticed, immediately turn off the power switch. Then contact your nearest Brother dealer or a qualified technician.

If the machine develops a problem, contact your nearest Brother dealer or a qualified technician.

Cleaning

Be sure to wear protective goggles and gloves when handling the lubricating oil and grease, so that they do not get into your eyes or onto your skin, otherwise inflammation can result. Furthermore, do not drink the oil or eat the grease under any circumstances, as they can cause vomiting and diarrhea. Keep the oil out of the reach of children.

Use only the proper replacement parts as specified by Brother.

Maintenance and inspection

Disassembly, assembly, maintenance and inspection of the sewing machine should only be carried out by a qualified technician.

Ask your Brother dealer or a qualified electrician to carry out any maintenance and inspection of the electrical system.

Turn off the power switch and disconnect the power cord from the wall outlet at the following times, otherwise the machine may operate if the treadle is depressed by mistake, which could result in injury.

・ When carrying out inspection, adjustment and

maintenance

・ When replacing consumable parts such as the

rotary hook

If the power switch needs to be left on when carrying out some adjustment, be extremely careful to observe all safety precautions.

Turn off the power switch before inserting or removing the plug, otherwise damage to the control box could result.

S-7200C

Secure the table so that it will not move when tilting back the machine head. If the table moves, it may crush your feet or cause other injuries.

Use both hands to hold the machine head when tilting it back or returning it to its original position. If only one hand is used, the weight of the machine head may cause your hand to slip, and your hand may get caught.

Use only the proper replacement parts as specified by Brother.

If any safety devices have been removed, be absolutely sure to re-install them to their original positions and check that they operate correctly before using the machine.

Any problems in machine operation which result from unauthorized modifications to the machine will not be covered by the warranty.

iii

[3] Warning labels

The following warning labels appear on the sewing machine. Please follow the instructions on the labels at all times when using the machine. If the labels have been removed or are difficult to read, please contact your nearest Brother dealer.

1

2

3

Touching areas where high voltages are present can result in severe injury. Turn off the power before opening the cover.

4

5

Be careful not to get your hands caught when returning the machine head to its original position after it has been tilted.

Be careful to avoid injury from the moving thread take-up.

* Safety devices: (A) Finger guard

Oil pan

(B) Thread take-up cover

Control box

6

Transformer box (100 V/400 V system only)

Be sure to connect the ground. If

the ground connection is not secure, you run a high risk of receiving a serious electric shock, and problems with correct operation may also occur.

7

Direction of operation

4123M

iv

S-7200C

CONTENTS

1. MACHINE SPECIFICATIONS.............. 1

2. NOTES ON HANDLING........................

2

3. COMPARISON OF FUNCTIONS (G50 AND G10 OPERATION PANELS)...

3

4. FUNCTION SETTINGS

(G50 OPERATION PANEL)..................

4-1.

List of advanced functions ................................... 4

4-2.

List of special functions when power is turned on.. 5

4-3.

Maximum sewing speed and start backtack

sewing speed setting methods............................. 6

4-4.

Using the LOCK key ............................................ 7

4-5.

Memory switch setting method (Standard)........... 8

4-6.

Memory switch setting method (Advanced) ......... 13

4-7.

Data initialization function ....................................22

4-8.

Error history checking method .............................23

4-9.

Input checking method.........................................24

4-10.

Output checking method....................................29

4-11.

Protection settings ............................................. 32

4-12.

Software version checking method.................... 35

4-13.

Viewing maintenance information ...................... 36

4-14.

Adjusting the sewing machine reference

position .............................................................. 37

4

5. FUNCTION SETTINGS

(G10 OPERATION PANEL).................38

5-1.

List of special functions when power is turned on.. 38

5-2.

Function setting method....................................... 39

5-3.

Data initialization function ....................................41

5-4.

Error history checking method .............................42

5-5.

Input checking method.........................................43

5-6.

Output checking method ...................................... 48

5-7.

Protection settings ...............................................51

5-8.

Software version checking method ...................... 54

5-9.

Viewing maintenance information ........................55

5-10.

Adjusting the sewing machine reference position.. 56

6. SETTING THE DIP SWITCHES (G50 AND G10 OPERATION PANELS)...57

7. MECHANICAL DESCRIPTIONS .........

7-1.

Upper shaft and needle bar mechanism ..............58

7-2.

Lower shaft and rotary hook mechanism ............. 59

7-3.

Feed mechanism .................................................60

7-4.

Quick reverse mechanism

(quick back mechanism) ......................................61

7-5.

Lubrication mechanism

(thread take-up and rotary hook).......................... 62

7-6.

Thread trimming mechanism................................ 63

58

S-7200C

7-6-1. Thread trimming mechanism operation

sequence.................................................... 63

7-6-2. Upper and lower thread trimming sequence ... 65

7-7.

Tension release mechanism................................ 66

7-8.

Thread wiper mechanism (option device)............ 67

8. DISASSEMBLY ....................................68

8-1.

Knee lifter assembly ............................................ 68

8-2.

Cable tie .............................................................. 69

8-3.

Connector ............................................................ 69

8-4.

Operation panel and head detector unit .............. 70

8-5.

Covers and bobbin winder unit ............................ 71

8-6.

Tension release wire and thread trimmer solenoid.. 72

8-7.

Wick holder and oil tube (-[]0[] specifications) ..... 73

8-8.

Oil tank, bed bottom cover and sub tank ............. 74

8-9.

Stand ................................................................... 75

8-10.

Safety switch and quick reverse solenoid.......... 75

8-11.

Needle, presser foot and R-actuator ................. 76

8-12.

Thread tension mechanism ............................... 76

8-13.

Needle plate, feed dog, etc................................ 77

8-14.

Bobbin case, rotary hook and thread trimmer

mechanism ........................................................ 78

8-15.

Feed bar mechanism......................................... 79

8-16.

Feed rock shaft.................................................. 79

8-17.

Presser foot mechanism.................................... 80

8-18.

Knee lifter lever mechanism .............................. 81

8-19.

Tension pulley ................................................... 81

8-20.

Needle bar and thread take-up mechanism....... 82

8-21.

Pulley and motor ............................................... 83

8-22.

Timing belt......................................................... 84

8-23.

Feed mechanism (1) ......................................... 84

8-24.

Feed mechanism (2) ......................................... 85

8-25.

Feed mechanism (3) ......................................... 86

8-26.

Lower shaft, lower shaft gear

and feed regulator unit ...................................... 87

8-27.

Plunger, rotary hook shaft, rotary hook shaft

gear and thread trimmer cam ............................ 88

8-28.

Reverse lever .................................................... 88

9. ASSEMBLY ..........................................89

9-1.

Stitch length dial and feed regulator mechanism... 90

9-2.

Reverse lever ...................................................... 91

9-3.

Plunger, rotary hook shaft, rotary hook shaft gear

and thread trimmer cam....................................... 92

9-4.

Lower shaft, lower shaft gear and

feed regulator unit................................................ 93

9-5.

Feed mechanism (1)............................................ 94

9-6.

Feed mechanism (2)............................................ 95

9-7.

Upper shaft mechanism....................................... 96

9-8.

Timing belt ........................................................... 97

9-9.

Pulley, motor and ground wire ............................. 97

9-10.

Knee lifter lever mechanism .............................. 98

9-11.

Needle bar and thread take-up mechanism....... 99

9-12.

Presser foot mechanism .................................. 100

9-13.

Feed rock shaft ................................................ 101

9-14.

Feed mechanism (1)........................................101

9-15.

Feed mechanism (2)........................................102

9-16.

Feed bar mechanism ....................................... 102

9-17.

Tube holder, safety switch and

quick reverse solenoid ..................................... 103

9-18.

Thread trimmer mechanism ............................. 104

9-19.

Oil tank, bed bottom cover and sub tank ......... 105

9-20.

Needle, presser foot and R-actuator................ 106

9-21.

Thread tension mechanism ............................. 107

9-22.

Tension release wire and

thread trimmer solenoid ................................... 108

9-23.

Wick holder and oil tube (-[]0[] specifications) ...109

9-24.

Tension pulley.................................................. 109

9-25.

Rotary hook .....................................................110

9-26.

Stand ............................................................... 111

9-27.

Needle plate, feed dog, etc.............................. 111

9-28.

Covers and operation panel (1) .......................112

9-29.

Covers and operation panel (2) .......................113

9-30.

Cable tie .......................................................... 113

9-31.

Connector ........................................................ 114

9-32.

Knee lifter lever................................................ 114

10. ADJUSTMENTS ...............................

10-1.

Adjusting the actuator switch position..............115

10-2.

Adjusting the safety switch position ................. 116

10-3.

Adjusting the thread take-up spring ................. 117

10-4.

Adjusting arm thread guide R ..........................118

10-5.

Adjusting the presser foot height .....................118

10-6.

Quick reverse device ....................................... 119

10-7.

Matching the stitch lengths for forward feed

and reverse feed..............................................119

10-8.

Adjusting the feed dog height ..........................120

10-9.

Adjusting the feed dog angle ...........................121

10-10. 10-11.

10-12. 10-13. 10-14.

10-15. 10-16. 10-17.

10-18.

Adjusting the needle bar height ..................... 122

Adjusting the needle and

feed mechanism timing ................................. 122

Adjusting the needle and rotary hook timing.. 123

Adjusting the thread trimming timing .............124

Adjusting the thread take-up amount

(-[][]3 specifications)....................................... 125

Adjusting the needle up stop position ............ 126

Adjusting the treadle......................................128

Adjusting the presser foot floating amount

(minute lifting amount) ................................... 128

Adjusting the tension release wire ................. 129

115

10-19.

11. REPLACING PARTS........................

11-1. 11-2. 11-3. 11-4. 11-5.

Adjusting the rotary hook lubrication amount

(-[]0[], []3[] specifications).............................. 130

131

Fixed knife ....................................................... 131

Movable knife .................................................. 131

Motor and timing belt....................................... 132

Rotary hook RP ............................................... 135

Feed bar shaft, lifting feed shaft ...................... 136

12. APPLYING GREASE

137

(-[]3[], []5[] SPECIFICATIONS) ........

12-1.

When “GrEASEUP” appears…

When using the G50 operation panel .............. 137

12-2.

When “GrUP” appears…

When using the G10 operation panel .............. 139

13. SETTING METHOD FOR STANDARD

141

145

147

149

DEPRESSION STROKES ..............

13-1.

When using the G50 operation panel .............. 141

13-2.

When using the G10 operation panel .............. 143

14. CONTROL BOX AND MOTOR.........

14-1.

Checking the motor and power supply ............ 145

14-2.

Checking the solenoids ................................... 146

15. STANDING OPERATION PEDAL ....

15-1.

Installing the foot plug ..................................... 147

15-2.

Connectors ...................................................... 148

16. WIRING DIAGRAMS (X-7200C).......

17. CONNECTOR LAYOUT DIAGRAM

150

(MAIN PCB) ......................................

18. COMBINATION OF TRANSFORMER SPECIFICATIONS AND CONTROL

152

153

162

DEVICE SPECIFICATIONS..............

19. TROUBLESHOOTING......................

19-1.

Sewing ............................................................ 153

19-2.

Error code displays.......................................... 158

20. 7-SEGMENT DISPLAY.....................

S-7200C

1. MACHINE SPECIFICATIONS

１. MACHINE SPECIFICATIONS

3 4 Quick reverse O O Thread wiper - O

0 3 5

Lubrication type Minimum lubrication Semi dry Complete dry

S 3 5 Use For light-weight

and difficult-to-sew

materials

-33S, -43S

-45S Max. sewing speed 4,000 sti/min 5,000 sti/min * 4,500 sti/min * Start backtacking and continuous backtacking speed End backtacking speed 1,800 sti/min Max. stitch length 4.2 mm 5 mm

Lifting lever 6 mm Presser foot

height Feed dog height 0.8 mm 1.2 mm Needle (DB×1, DP×5) Motor AC servo motor (4-pole, 450W) Control circuit Microprocessor

*…When sewing at speeds of 4,000 sti/min or higher, set the stitch length to 4.2 mm or less.

Rotary hook

Lubricated /

for light materials

Lubricating oil

-30[], -40[] -33[], -43[] -45[] Rotary hook High-speed spindle Needle bar

Knee lifter 16 mm

NS #9 - #11 #11 - #18 #19 - #22

-33S

-43S

High-speed spindle

-303, -403

-333, -433

Lubricated /

for medium materials

Special Brother grease Special Brother grease

-453

220 - 3,000 sti/min

-305

-405

Lubricated /

for heavy materials

For medium-

weight materials

-303, -403

-333, -433

(lubrication-free rotary hook)

For heavy-weight

materials

-305

-405

-45S

-453

Rotary hook RP

1

S-7200C

２. NOTES ON HANDLING

About the machine set-up location

・ Do not set up this sewing machine near other equipment such

as televisions, radios or cordless telephones, otherwise such equipment may be affected by electronic interference from the sewing machine.

・ The sewing machine should be plugged directly into an AC wall

outlet. Operation problems may result if extension cords are used.

Carrying the machine

・ The machine should be carried by the arm by two people as

shown in the illustration.

* Hold the motor cover (A) by hand also so that the pulley does

not rotate.

2. NOTES ON HANDLING

2086M

4125M

Tilting back the machine head

・ Hold section (B) with your foot so that the table does not move,

and then push the arm with both hands to tilt back the machine head.

Returning the machine head to the upright position

1. Clear away any tools, etc. which may be near the table holes.

2. While holding the face plate with your left hand, gently return the machine head to the upright position with your right hand.

2088M

2089M

S-7200C

2

3. COMPARISON OF FUNCTIONS (G50 AND G10 OPERATION PANELS)

３. COMPARISON OF FUNCTIONS

(G50 AND G10 OPERATION PANELS)

Normal sewing (*1)

Start backtack sewing

End backtack sewing

1985B

1986B

G10 operation panel G50 operation panel

○ ○

1987B

Continuous backtack sewing

Sewing

pattern

Fixed stitch sewing

○ ○

3655M

0827M

Name label sewing

0835M

Pleat presser sewing

Program sewing

Memory switch

Lower thread counter

(*1) Normal sewing refers to sewing carried out when no functions have been set.

- ○

2163M

- ○

3

S-7200C

4. FUNCTION SETTINGS (G50 OPERATION PANEL)

４. FUNCTION SETTINGS (G50 OPERATION PANEL)

４-１. List of advanced functions

This section contains a list of advanced functions and the key operations which are used to call the setting mode for the

functions.

Maximum sewing speed and start backtack sewing speed setting

1

Release the lock

Refer to “4-3. Maximum sewing speed and start backtack sewing speed setting methods”. Memory switch setting mode (Standard)

2

Release the lock

Refer to “4-5. Memory switch setting method (Standard)”.

* For details on releasing the lock, refer to “4-4. Using the LOCK key”.

＋

1989B

1990B

1988B

S-7200C

4

4. FUNCTION SETTINGS (G50 OPERATION PANEL)

４-２. List of special functions when power is turned on

This section contains a list of functions for the G50 operation panel and the key operations which are used to call the setting

mode for the functions.

1991B

Memory switch setting mode (Advanced)

1

Protect setting mode

6

[DIP switch 1 = OFF]

1992B

Refer to “4-6. Memory switch setting method (Advanced)”.

Data initialization function

2

Refer to “4-7. Data initialization function”.

Error log display function

3

Refer to “4-8. Error history checking method”.

Input checking function

4

(A)

Output checking function

5

Refer to “4-9. Input checking method”.

(C)

Refer to “4-11. Protection settings”.

Software version display function

7

(1)

Refer to “4-12. Software version checking method”.

Treadle position adjustment mode

8

[DIP switch 4 = ON]

(C)

Refer to “13. SETTING METHOD FOR STANDARD DEPRESSION STROKES”.

Sewing machine reference position adjustment mode

9

Refer to “4-14. Adjusting the sewing machine reference position”.

Maintenance information viewing mode

10

(B)

5

(A)

Refer to “4-10. Output checking method”.

1993B-1995B, 1999B, 1996B 1997B-1999B, 1999B-2000B

S-7200C

(D) (D)

Refer to “4-13. Viewing maintenance information”.

4. FUNCTION SETTINGS (G50 OPERATION PANEL)

４-３. Maximum sewing speed and start backtack sewing speed

setting methods

If the LOCK key icon (1) is on, release the lock before carrying out the following operations.

1

Maximum sewing speed setting

Maximum sewing speed

Start backtack sewing speed

2

Example:

4,500 sti/min

The main display (2) will change from an orange display to a green display.

・ The maximum sewing speed can be set to a speed from

220 sti/min to the maximum sewing speed that has been set for the head detector unit.

・ If all numbers in the sewing speed control display (3) are

illuminated, sewing will be carried out at the maximum speed that is set here when the treadle is fully depressed.

2001B

2002B

2003B 2004B

Start backtack sewing speed setting

3

4

NOTE:

If the main display (2) appears in green, normal key operations cannot be carried out. If this happens, press the MAX key once more to clear the sewing speed display and return to the orange display. Normal key operations can then be carried out.

Example:

1,600 sti/min

・ The start backtack sewing speed can be set to a speed

from 220 sti/min to 3,000 sti/min. (The factory default setting is 1,800 sti/min.)

The sewing speed display disappears and the main display (2) returns to the orange display.

2005B

2159M

S-7200C

6

4. FUNCTION SETTINGS (G50 OPERATION PANEL)

４-４. Using the LOCK key

2006B

Control box

4221M

When the power switch is turned on, the LOCK key (1) turns on. (The icon (2) is illuminated.) This causes all key operations which have been set using the protect settings feature to become disabled, and you can use this

feature to prevent setting values from being changed by accident.

* For details on the protect settings feature, refer to “4-11. Protecting settings”.

Press down the LOCK key (1) for 2 seconds or more. The icon (2) will switch off and the lock will be released.

NOTE:

* If DIP switch 1 is set to ON, the lock cannot be released.

* The lock cannot be released if the protection level has been set to “2” or “3” using the protect settings feature.

* At the time of shipment from the factory, the protection level is set to “1”.

When the icon (2) is switched off, press down the LOCK key (1) for 2 seconds or more. The icon (2) will illuminate and operations for keys which have been set using protect setting mode will be disabled.

* About the icon (2)

If the protection level has been set to “0” using the protect settings feature, the status of the icon (2) will be stored when the

lock settings have been changed.

7

S-7200C

*

4. FUNCTION SETTINGS (G50 OPERATION PANEL)

４-５. Memory switch setting method (Standard)

NOTE:

・ This cannot be set if DIP switch 1 has been set to ON, so set it to OFF. ・ If the LOCK key icon (1) is on, release the lock before carrying out the following

operations.

・

If the MAX key icon (2) is on, press the MAX key to return the main display to stitch

2007B

Change to memory switch mode

1

number display (orange).

The memory switch number (A) and the setting details (B) for that number will be displayed in green in the main display (3).

NOTE:

If the current setting value is different from the initial value, it will be displayed in yellow.

Select a memory switch number (A)

2

Change the setting details (B).

3

* If you press the or key (4) at this time, only the memory switch

numbers with a current value that is different from the initial value will be displayed in yellow.

* If you would like to return the setting which is currently being displayed

to the default value, press the

If the setting details for the memory switch are different from the

original setting details, the setting details (B) will flash.

* If the setting details for the memory switch are different from the initial

values, they will be displayed in yellow.

key.

2009B 2093B 2138M 2139M

2008B

4

Repeat steps 2 to 4 above to change other memory switch settings.

5

The setting for the memory switch will be stored and (B) will stop flashing and illuminate steadily.

NOTE:

The changed settings will be enabled after memory switch mode has been exited.

2011B 4173M

4192M

6

Normal sewing machine operation will then be possible.

S-7200C

4193M

8

4. FUNCTION SETTINGS (G50 OPERATION PANEL)

Presser foot lifter operation and pedal operation settings (001-)

No.

001 ON/OFF OFF -

002 ON/OFF OFF -

003 ON/OFF ON -

004 ON/OFF ON -

010 ON/OFF OFF -

011 0-2 0 1

012

013 ON/OFF ON -

014 ON/OFF ON -

015 ON/OFF ON -

Setting

range

0-500

(ms)

Initial

value

80

(ms)

Setting

units

10

(ms)

Setting details

Presser foot status when treadle is returned to neutral after thread trimming ON: Presser foot does not drop OFF: Presser foot drops (Presser foot will not drop if No. 851 is set to OFF.) Presser foot status after treadle stops at neutral ON: Presser foot lifts OFF: Presser foot does not lift Presser foot lifting when treadle is depressed backward to 1st step after returning to neutral * If No. 004 is “OFF”, this function will operate as if the setting is “OFF”. ON: Possible OFF: Not possible Operation when treadle is depressed backward ON: Thread trimming and end backtack sewing operations are enabled

(If thread trimming operation has been disabled, needle up operations will be carried out without thread trimming.)

OFF: Thread trimming and end backtack sewing operations are disabled

(Presser foot is raised when treadle is depressed backward.) Alternate standing operation pedal and treadle operation ON: Standing operation pedal and the treadle can operate alternately

(If the standing operation pedal and the treadle are operated at the same

time, the standing operation pedal will have priority.) OFF: Treadle operation can also be used after standing operation pedal is used Operation when standing operation variable speed pedal is on 0: Sewing speed corresponds to treadle depression amount

1: Sewing speed corresponds to sewing speed control key setting

(constant speed)

2: Sewing speed corresponds to end backtack speed

Delay time from standing pedal turning on until motor starts operating

Pause function during standing operation when presser foot lifter pedal is operated (when AUTO key is set to ON) ON: Operation pauses during sewing when presser foot lifter pedal is ON OFF: No operation Pause function during standing operation when high-speed pedal is operated (when AUTO key is set to ON)

ON: Operation pauses during sewing when high-speed pedal turns ON once

more. Sewing is resumed when high-speed pedal next turns OFF. OFF: No operation Presser foot lifting operation from thread trimming pedal after thread is trimmed during standing operation ON: Presser foot can be lifted and lowered

(If No. 051 is “OFF”, the thread trimming pedal operation is disabled after the presser foot lifter pedal has been operated during standing operation.)

OFF: No operation (Only possible by using presser foot lifter pedal.)

9

S-7200C

Sewing machine motor settings (100-)

4. FUNCTION SETTINGS (G50 OPERATION PANEL)

No.

100

101 OFF/1-3 OFF 1

102 1-5 1 1

Setting

range

1-99

(needles)

Initial value

2

(needles)

Setting

units

1 Number of slow start stitches

Operation panel settings (300-)

No.

300 1-3 1 1

301

302 0-2 1 1

303

Setting

range

0-100

(needles)

0-1000

(needles)

Initial value

10

(needles)

100

(needles)

Setting

units

1

10

Setting details

Pedal response switching settings immediately after sewing has started OFF: No switching 1: Slow start only when sewing starts after thread trimming 2: Slow start only when sewing starts after sewing has been paused 3: Slow start always when sewing starts Pedal response immediately after sewing has started * The larger the value, the slower the speed when sewing starts. * If No. 101 is set to “OFF”, this setting is disabled.

Setting details

Lower thread counter display operations 1: Lower thread counter (Counting units are set by No. 301.) 2: Thread trimming counter (incremented by 1 each time of a thread trimming

operation occurs)

* The counter is incremented even if thread trimming is set to disabled. 3: Needle replacement counter (Counting units are set by No. 303.) Lower thread counter counting units 0: No counting operation 1-100: Display counts down by the set number of stitches Operation for counter warning (when < ! > warning icon is displayed) 0: Starting using the treadle is always enabled 1: After thread trimming stops, starting using the treadle is disabled

(enabled until depressed backward)

2: Operation using treadle fully disabled after treadle is returned to neutral

position and sewing stops Needle replacement counter counting units 0: No counting operation 10-1000: Display counts down by the set number of stitches

S-7200C

10

4. FUNCTION SETTINGS (G50 OPERATION PANEL)

Sewing program settings (400-)

No.

400 2-6 2 1

401 2-6 2 1

402 1-2 1 1

403 ON/OFF OFF -

404 ON/OFF OFF -

405 1-2 1 1

Setting

range

Initial

value

Setting

units

Setting details

Start backtack sewing pattern * If A=0, there is no A operation, and if B=0, there is no B operation. 2: A-B 3: B-A-B 4: A-B-A-B 5: B-A-B-A-B 6: A-B-A-B-A-B End backtack sewing pattern * If C=0, there is no C operation, and if D=0, there is no D operation. 2: C-D 3: C-D-C 4: C-D-C-D 5: C-D-C-D-C 6: C-D-C-D-C-D Continuous backtack sewing pattern 1: A-B-C-D

* If A=0, there is no A operation, and if B=0, there is no B operation.

If C=0, there is no C operation, and if D=0, there is no D operation.

2: A-B × D times

* If A=0, there is no A operation, and if B=0, there is no B operation.

If A≠0, B≠0 and D=4, operation is in the order A-B-A-B.

Stopping while start backtacking is in progress, and speed during start backtacking ON: When the treadle is returned to the neutral position, start backtacking can be

stopped before it is finished, and the speed during start backtacking becomes the speed corresponding to the treadle depression amount. (low speed-start backtacking speed)

OFF: When the treadle is returned to the neutral position, start backtacking ends,

sewing stops and the sewing speed becomes the start backtacking speed. Feed direction when sewing is stopped immediately after start backtacking is complete ON: Quick reverse solenoid turns OFF after sewing stops

* If No. 403 is “OFF”, operation occurs when the treadle is

depressed slightly.

OFF: Quick reverse solenoid turns OFF and feed returns to

normal direction, then stops * If No. 452 is “ON”, the operation set by this setting is

disabled. Operation when pleat presser sewing key is ON (fixed stitch sewing load function) 1: Reverse stitching operation when actuator switch is ON 2: Fixed stitch sewing operation when actuator switch is ON

11

S-7200C

Standard device settings (500-)

4. FUNCTION SETTINGS (G50 OPERATION PANEL)

No.

500 OFF/1-3 1 1

501 OFF/1-2 1 1

502 OFF/1 1 1

(*1) When the pleat presser sewing key is ON, the pleat presser sewing switch function is enabled.

(*2) When the pleat presser sewing key is set to ON, the correction sewing switch function is disabled. (*3) To make it function as a thread trimming switch while sewing is in progress, No. 501 must be set to “2”. (*4) To make it function as a quick reverse switch while sewing is in progress, No. 501 must be set to “1”.

Setting

range

However, when set to “2”, the thread trimming switch function takes priority.

Initial value

Setting

units

Setting details

Actuator switch function when sewing is stopped (*1) OFF: No operation 1: Correction sewing switch (*2) 2: Thread trimming switch (*3) 3: Cloth feed quick reverse switch (*4) Actuator switch function during sewing (*1) OFF: No operation 1: Manual backtack switch (*2) 2: Thread trimming switch (*2) Presser foot lifter switch function OFF: No operation 1: Presser foot lifter switch

S-7200C

12

4. FUNCTION SETTINGS (G50 OPERATION PANEL)

*

４-６. Memory switch setting method (Advanced)

Change to memory switch mode

1

(While holding down the MAX key and the FUNC (function) key, press the power ON switch.)

Select a memory switch number (A)

2

If you press the or key (2) at this time, only the memory switch

numbers with a current value that is different from the initial value will be displayed in yellow.

The memory switch number (A) and the setting details (B) for that number will be displayed in green in the main display (1).

2012B

Change the setting details (B)

3

* If you would like to return the setting which is currently being displayed

to the default value, press the

If the setting details for the memory switch are different from the

original setting details, the setting details (B) will flash.

* If the setting details for the memory switch are different from the initial

values, they will be displayed in yellow.

4

Repeat steps 2 to 4 above to change other memory switch settings.

5

The setting for the memory switch will be stored and (B) will stop flashing and illuminate steadily.

NOTE:

The changed settings will be enabled after memory switch mode has been exited.

2009B 2013B 2138M 2139M

key.

2011B 4173M

4192M

6

Normal sewing machine operation will then be possible.

13

S-7200C

4193M

4. FUNCTION SETTINGS (G50 OPERATION PANEL)

Presser foot lifter and presser foot lifter pedal settings (050-)

No.

050 ON/OFF ON -

051 ON/OFF (*1) -

055 ON/OFF OFF -

057 ON/OFF (*1) -

(*1) The initial value varies depending on the destination. For Europe and the Americas, the initial setting is “ON”, and for all

Setting

range

other destinations, it is “OFF”.

Initial value

Setting

units

Setting details

Forward treadle operation interlock during thread trimming ON: Depressing treadle forward during thread trimming is disabled

(After the treadle is returned to the neutral position, depressing it

forward is enabled.) OFF: Depressing treadle forward during thread trimming is enabled Operation after knee switch is used to raise and lower presser foot ON: Presser foot can be raised and lowered by depressing the treadle

backward

OFF: Above operation is not possible Backward treadle operation when presser foot is lifted, or operation after

knee switch is operated * This setting is only enabled when No. 851 is “ON” and No. 001 is “ON”. ON: Presser foot does not lift when treadle is returned to neutral position OFF: Presser foot lifts when treadle is returned to neutral position

Presser foot dropping when treadle is depressed forward to 1st step * This is disabled when No. 852 is set to “OFF”. ON: Presser foot is lowered OFF: Presser foot is not lowered

S-7200C

14

4. FUNCTION SETTINGS (G50 OPERATION PANEL)

No.

Setting

range 080 -7-7 0 1 Treadle backward on (thread trimming) point (S7) 081 -5-5 0 1 Treadle backward 1st step on (presser foot lifting) point (S6)

082 -5-5 0 1 Treadle forward 1st step on (presser foot dropping) point (S1) 083 -5-5 0 1 Treadle forward on (starting) point (S2) 084 -5-7 0 1 Treadle variable speed range starting point (S3) 085 -7-7 0 1 Treadle high speed range reaching point (S4)

086 -2-2 0 1

087 -2-2 0 1 High speed range reaching point for standing operation variable speed pedal (S4)

088 0-3 (*2) 1

(*2) The initial value varies depending on the destination. For Japan, the initial value is “1”, and for all other destinations, it is “0”.

Initial value

Setting

units

Setting details

Variable speed range starting point for standing operation variable speed pedal (S3)

Treadle speed curve 0: Constant 1: Curves downward

Speed

2: Curves upward 3: S line curve

Depression stroke

2014B

Speed

Treadle backward stroke

Neutral

Depression stroke

2015B

15

S-7200C

Sewing machine motor settings (150-)

4. FUNCTION SETTINGS (G50 OPERATION PANEL)

No.

150 ON/OFF ON -

151 ON/OFF OFF -

152 ON/OFF OFF -

153

154

155 0 1 1

170

171

172 -3-6 0 1 Gain during high-speed motor operation 173 -3-6 0 1 Gain during low-speed motor operation 174 -3-6 0 1 Weak gain during thread trimming

175 OFF/1 OFF 1

176

177

Setting

range

10-500

(ms)

-20-20

(degrees) 0 (degrees)

5-12

(A)

5-12

(A)

OFF/

1-120

(seconds)

30-89

(degrees)

Initial value

150

(ms)

11

(A)

10

(A)

OFF 1

45

(degrees)

Setting

units

10

(ms)

1

Setting details

Slow stop control when treadle is returned to neutral ON: Slow stop control without step operation

(Low speed operating time before sewing stops is almost constant)

OFF: Above control is not used

(Low speed operating time before sewing stops is not constant) Effective hammer operation if needle does not pierce ON: Effective hammer operation OFF: No effective hammer operation Highest needle position stop operation ON: Used OFF: Not used Delay time until reverse operation starts during highest needle position stop operation * This is only enabled when No. 152 is set to “ON”. Quick reverse needle up stop position setting * This is only enabled when No. 152 is set to “ON”.

Thread wiping operation and presser foot lifting operation during highest needle position stop operation * This is only enabled when No. 152 is set to “ON”. 0: The needle is raised, then thread wiping is carried out, and then the

presser foot is lifted Current limit value during acceleration * The larger the value, the faster the sewing machine motor acceleration;

the smaller the value, the slower the acceleration. (Setting a small value

may be effective in preventing fluorescent light flickering.) Current limit value during deceleration * The larger the value, the faster the sewing machine motor deceleration;

the smaller the value, the slower the deceleration.

Servo lock operation OFF: None 1: Servo lock operation occurs when sewing is stopped Servo lock timer setting * This is disabled when No. 175 is set to “OFF”. OFF: No timer operation 1-120: Timer operates (1-120 seconds) Servo lock release rotation angle [Do not change this setting.] * This is disabled when No. 175 is set to “OFF”.

Becomes lower

Becomes higher

[Do not change this setting.] [Do not change this setting.] [Do not change this setting.]

2248M

S-7200C

16

4. FUNCTION SETTINGS (G50 OPERATION PANEL)

No.

180

181

182

183

184

186

188

189

(*1) The actual upper limit for the operating speed will be the speed set by No. 181. (*2) The actual lower limit for the operating speed will be the speed set by No. 181.

(*3) The upper limit set will vary depending on the machine head specifications. In addition, the initial value will vary

Setting

range 150-300 (sti/min) 150-300 (sti/min)

500-2500

(sti/min)

150-1000

(sti/min)

150-3000

(sti/min)

150-3000

(sti/min) 150-HIL (sti/min)

150-

(*3)

(sti/min)

depending on the destination.

No. Machine head specifications Destination Initial value Set upper limit

Dry specifications: -[]5[]

188

Lightweight difficult-to-sew material specifications: -[][]S

Medium-weight material specifications: -[]03, -[]33

Heavy-weight material Specifications: -[]05, -[]35

Dry specifications: -[]5[]

189

Lightweight difficult-to-sew material specifications: -[][]S

Medium-weight material specifications: -[]03, -[]33

Heavy-weight material specifications: -[]05, -[]35

Initial

value

220

(sti/min)

220

(sti/min)

1400

(sti/min)

700

(sti/min)

3,000

(sti/min)

1800

(sti/min)

HIL

(sti/min)

(*3)

(sti/min)

Setting

units

10 Thread trimming speed (TRIM) (*1)

10 Inching speed (INCH)

100 Stop improvement speed (POS) [Do not change this setting.]

10 Slow speed (SLOW) (*2)

100 Upper limit for start backtack speed setting (SBL) (*2)

100 End backtacking speed (EBT) (*2)

100 Automatic speed (AUTO) (*2), (*3)

100 Maximum sewing speed limit speed (HIL) (*3)

All 4000 sti/min 4000 sti/min

Japan 4000 sti/min China 4300 sti/min Europe, Americas 4700 sti/min General export 4000 sti/min Japan 4000 sti/min China 4300 sti/min Europe, Americas 4500 sti/min General export 4000 sti/min

All 4000 sti/min 4000 sti/min

Japan 4300 sti/min China 4300 sti/min

Europe, Americas 4700 sti/min General export 4000 sti/min Japan 4300 sti/min China 4300 sti/min Europe, Americas 4500 sti/min General export 4000 sti/min

Setting details

-[]03：5000 sti/min

-[]33：5000 sti/min

-[]05：4500 sti/min

-[]35：4500 sti/min

-[]03：5000 sti/min

-[]33：5000 sti/min

-[]05：4500 sti/min

-[]35：4500 sti/min

17

S-7200C

Panel operation settings (350-)

4. FUNCTION SETTINGS (G50 OPERATION PANEL)

No.

350 ON/OFF ON -

351

352 ON/OFF ON -

353 ON/OFF ON -

354 0-2 1 1

Setting

range

0-10

(seconds) 0 (seconds)

Initial value

Setting

units

1

Setting details

Buzzer (electronic sound) during panel operation ON: Used OFF: Not used * The buzzer will always be ON when a warning or error is displayed.

Additional display time for model name in head detector PCB when power switch is turned on 0: Not displayed 1-10: Machine head model name is displayed for the set time in the main

display using 8 characters Limit for maximum speed setting in start and end backtacking speed settings ON: Limited by MAX key and speed bar key settings OFF: Not limited by MAX key and speed bar key settings End backtack sewing speed ON: Separate setting from start backtack sewing speed is possible OFF: Setting for start backtack sewing is used * Refer to “4-3. Maximum sewing speed and start backtack sewing speed

setting methods”. Correction sewing function * This is only enabled when No. 500 is set to “1”. * When the <correction sewing> icon at the left side is turned off, the

operation will be what is illuminated at the right side. 0: Half stitch correction sewing / Single stitch correction sewing 1: No correction sewing / Single stitch correction sewing 2: Reverse stitch (reverse feed) correction sewing / Single stitch correction

sewing

S-7200C

18

4. FUNCTION SETTINGS (G50 OPERATION PANEL)

Sewing program settings (450-)

No.

Setting

range

Initial value

Setting

units

Setting details

Correction sewing using actuator switch after thread trimming

450 ON/OFF OFF -

* This is only enabled when No. 500 is set to “1”. ON: Enabled OFF: Disabled (switch operation disabled)

Speed for moving to end backtack (Set to “ON” if you want cycle time to be shorter.)

451 ON/OFF (*1) -

OFF: Decelerates to low speed, then end backtacking starts ON: Decelerates to end backtacking speed, then end backtacking starts * If No. 452 has been set to “ON”, the operation when No. 451 is set to “ON”

will be disabled. Seam matching function during automatic backtacking (Set to “ON” if you want to match seams accurately during automatic backtacking.)

452 ON/OFF OFF -

ON: Momentarily stops when material feed direction is changed OFF: No stopping when material feed direction is changed * The stopping position for No. 453 can be changed by changing the time

before restarting using No. 454. Momentary stopping position when material feed direction is changed (The stopping position is the angle from when the needle up signal turns ON.) * This is only enabled when No. 452 is set to “ON”.

453

0-350

(degrees)

180

(degrees)

10

Momentary stopping time when material feed direction is changed

454

10-500

(ms)

100

(ms)

10

(ms)

(The quick reverse mechanism switches at the stopping position, and then after the stopping time has elapsed, sewing automatically restarts.) * This is only enabled when No. 452 is set to “ON”. Synchronization function when quick reverse mechanism has been operated using the actuator switch

455

OFF/

1-2

(*2) 1

OFF: Disabled (Quick reverse mechanism is synchronized with switch)

1: Quick reverse mechanism synchronization without motor deceleration

2: Quick reverse mechanism synchronization when motor decelerates

automatically to the speed set by No. 456

300-4000

456

457

458

(sti/min)

0-355

(degrees) 0 (degrees)

0-355

(degrees)

471 ON/OFF

4000

(sti/min)

150

(degrees)

OFF

(*3)

100

1

- Spare

Automatic deceleration speed when quick reverse mechanism has been operated using the actuator switch * This is only enabled when No. 455 is set to “1” or “2”. Quick reverse mechanism operation angle at low speed (less than 1000 sti/min) * This is only enabled when No. 455 is set to “1” or “2”. Quick reverse mechanism operation angle at high speed (1000 sti/min or more) * This is only enabled when No. 455 is set to “1” or “2”.

(*1) The initial value varies depending on the destination. For Japan, the initial value is “ON”, and for all other destinations, it is “OFF”. (*2) The initial value varies depending on the destination. For Japan, the initial value is “OFF”, and for all other destinations, it is “2”. (*3) This is not initialized during initialization mode.

19

S-7200C

Standard device settings (550-)

4. FUNCTION SETTINGS (G50 OPERATION PANEL)

No.

Setting

range

Initial value

Setting

units

Automatic presser foot lifter type 0: Solenoid type

1

(Duty during chopping can be changed using No. 565.)

1: Pneumatic type

550 0-1

0

(*1)

(Duty during chopping can be changed using No. 566.)

551

555

556

557

558

0-500

(ms)

-345-345

(degrees) 0 (degrees)

-345-345

(degrees) 0 (degrees)

-345-345

(degrees) 0 (degrees)

-345-345

(degrees) 0 (degrees)

150

(ms)

10

(ms)

Sewing machine motor start delay time when presser foot is raised

Quick reverse solenoid on timing during start backtacking/continuous

1

backtacking Quick reverse solenoid off timing during start backtacking/continuous

1

backtacking

1 Quick reverse solenoid off timing during end backtacking

Quick reverse solenoid on timing during end backtacking

1

* This is only enabled when No. 451 is set to “ON”. Thread wiping and presser foot lift operation timing after thread trimming

560

561

562

563

564

565

566

10-200

(ms)

10-200

(ms)

10-200

(ms)

10-990

(ms)

0-240

(seconds)

10-60

(%)

10-60

(%)

20

(ms)

50

(ms)

50

(ms)

300 (ms)

180

(seconds)

25

(%)

50

(%)

(ms)

10

Presser foot lifting

Presser foot lifter solenoid fully ON time

Presser foot lift time 0: No timer function (does not drop)

1

1-240: Presser foot drops after set time On duty when solenoid-type presser lifter solenoid is chopping

1

* This is only enabled when No. 550 is set to “0”. On duty when pneumatic-type presser lifter solenoid is chopping

1

* This is only enabled when No. 550 is set to “1”. Presser foot soft down mode

567 0-1 0 1

0: Automatic mode (This can be adjusted using No. 569.) 1: Manual mode (This must be adjusted using No. 568.) Delay time for presser foot lifter solenoid to turn on after presser foot drop

5

command * This is only enabled when No. 567 is set to “1”.

568

20-120

(ms)

40

(ms)

Voltage detection constant for presser foot lifter solenoid to turn on after

569 10-12 12 1

presser foot drop command * This is only enabled when No. 567 is set to “0”. If it is set to “10”, the

response time will be fastest and the operating sound will be loudest.

573

574

40-100

(ms)

10-60

(%)

85

(ms)

40

(%)

5

(ms)

Fully on time for quick reverse solenoid

1 On duty when quick reverse solenoid is chopping

(*1) This is not initialized during initialization mode.

Setting details

Motor

Thread wiping

Needle up stop

2016B

S-7200C

20

4. FUNCTION SETTINGS (G50 OPERATION PANEL)

Error processing settings (650-)

No.

650

651

652

Setting

range

OFF/

5-30

(seconds)

OFF/

1-30

（minutes）

ON/OFF ON -

Initial

value

OFF 1

3

(minutes)

Setting

units

1

Setting details

Time until buzzer stops (seconds) OFF: Buzzer does not stop 5-30: Buzzer stops after the specified time

Overtime error display * If the thread wiper key is OFF, error displays do not appear. OFF: None

1-30: After continuous operation for the set length of time, operation stops and

[E190] is displayed.

Needle up stop error display OFF: None ON: If the needle does not stop at the up position after thread trimming, [E111]

is displayed.

Specifications and destination settings (850-)

No.

851 ON/OFF

852 ON/OFF (*1) -

(*1) This is not initialized during initialization mode.

Setting

range

The initial value varies depending on the destination. For Europe and the Americas, the initial setting is “ON”, and for all other destinations are “OFF”.

Initial

value

(*1)

Setting

units

Setting details

Treadle operation specifications ON: Specifications for Europe and the Americas

・ If No. 001 is “OFF”

(When the treadle is returned to the neutral position after thread trimming, the presser foot is lowered.) * If the treadle is returned to the neutral position during thread trimming,

the presser foot does not rise.

・ If No. 001 is “ON”

After thread trimming, the presser foot rises. The presser foot does not drop even when the treadle is returned to the neutral position.

-

・ If No. 001 or No. 002 is “ON”

(Even after the treadle has been depressed to the 1st step and the presser foot has dropped, the presser foot rises when the treadle is returned to the neutral position.) * If No. 852 and No. 057 are not both “ON” at the same time, the

presser foot lowering function at the treadle’s 1st step will be disabled.

OFF: Other specifications

・ The presser foot does not drop even when the treadle is returned to the

neutral position after thread trimming.

・ When the treadle is depressed backward or the knee switch changes

from ON to OFF, the presser foot drops. (The presser foot does not rise at the treadle neutral position

regardless of the settings for No. 001 and No. 002.) Presser foot lowering at the forward 1st step ON: Enabled OFF: Disabled

21

S-7200C

4. FUNCTION SETTINGS (G50 OPERATION PANEL)

４-７. Data initialization function

NOTE:

When DIP switch 1 is set to ON, set it to OFF and then carry out the following operations.

Change to initialization mode

1

(While pressing the RESET key, press the power ON switch.)

Select the item to be initialized

2

Item No. Main display Details to be initialized

1 [INIT ALL]

2 [INIT MEM] Memory switches

3 [INIT SPD]

4 [INIT SEW]

Clears all settings (Items 2, 3 and 4 will be initialized.)

Speed setting (MAX, Speed bar) Settings for memory switch Nos. 180-189 Sewing programs (operation panel display)

“init ALL” will appear in orange in the main display (1).

4195M

3

(Press for 2 seconds or more)

4

2094B

Once initialization is complete, the main display (1) will return to green.

NOTE:

If the initialization items are changed after initialization, the color will return to orange

Initialization mode will be exited and normal sewing machine operation will then be possible.

.

4192M

4193M

S-7200C

22

4. FUNCTION SETTINGS (G50 OPERATION PANEL)

*

４-８. Error history checking method

The past error history can be checked by the following procedure.

Change to error history display mode

1

(While pressing the MAX key, press the power ON switch.)

Changing the history number (A)

2

The history number (A) and the error code (B) will appear in the main display (1) in orange.

NOTE:

The following error codes do not remain in the history, and so they will not be displayed.

[E065, E066, E095, E440, E441, E901]

Up to 99 histories (01-99) are stored in order starting from the newest. No. 01 represents the newest error. (If there is no error code for a history number, [E---] will be displayed as the error code.)

While the key (2) is being pressed, the main display (1) will

change to displaying the time that the error occurred.

(The last 7 digits of [T*******] are the time. [Units: hours]) When the key (2) is released, the display returns to the

original error code display.

2018B 2040B 2138M

2017B

3

Turn off the power switch to exit error history checking mode.

23

S-7200C

4. FUNCTION SETTINGS (G50 OPERATION PANEL)

４-９. Input checking method

This is used at the following times.

・ When there is a problem with an operation panel key, PCB or sensor ・ When you would like to check for broken cords ・ When you would like to adjust a sensor position

This lets you check if the CPU is reading signals from the keys and the sensors correctly.

Change to input check mode

1

2019B 2138M

(While pressing the key, press the power ON switch.)

Select the item number (A)

2

Check the responses from the keys and switches, etc. while referring to the <Input check list> (following page).

3

[To return to the normal sewing machine starting condition]

4

Press the power OFF switch to turn off the power, and then turn the power back on.

* If 2 seconds pass without no operations having been carried out,

the four characters on the left side of the main display will alternately display the item number and the item name.

The item number (A) and the input status (B) will appear in the main display (1) in orange.

(Item number)

(Item name)

2036B 2095B

S-7200C

24

4. FUNCTION SETTINGS (G50 OPERATION PANEL)

The four characters on the left side of the main display on the operation panel show the item number/item name, and the four characters on the right side show the input status.

Item No. Item name Input status Check item and checking method

[ 1] [ PDL] [0.000]-[5.000] [V]

[ 2] [ ENC] [ 0]-[ 359] [degrees]

[ 3] [NLUP] [ ON]-[ OFF]

[ 4] [NLDN] [ ON]-[ OFF]

[ 5] [UPOG] [ ON]/[ OFF]

[ 6] [REZL] [ ALL]/[TES1]-[TES7]

[ 7] [VOLT] [ ***]

[ 8] [HEAD] [ ON]-[ OFF]

[ 9] [ BT] [ ON]-[ OFF]

[ 10] [ PRE] [ ON]-[ OFF]

[ 11] [OPDL] [0.000]-[5.000] [V]

[ 12] [HIGH] [ ON]-[ OFF]

[ 13] [TRIM] [ ON]-[ OFF]

[ 14] [INCH] [ ON]-[ OFF]

[ 15] [ PNL] [****]/[ OFF]

Treadle pedal voltage

Depress the treadle forward/backward.

Motor position signal (needle up side reference signal = 0 degrees)

Turn the machine pulley by hand.

* The input will be unstable until the reference signal from the

resolver is detected.

Needle up signal

Turn the machine pulley by hand.

* The input will be unstable until the reference signal from the

resolver is detected.

Needle drop signal

Turn the machine pulley by hand. * The input will be unstable until the reference signal from the

resolver is detected.

Needle up sensor signal

Turn the machine pulley by hand.

Resolver signal test

* Refer to <Resolver signal test> (P.27).

Power supply voltage

100 V systems : Display value ÷ 2 is the actual voltage. 200 V systems : The display value is the actual voltage. 400 V systems : Display value × 2 is the actual voltage. * There may be an error of about ±5% in the display value.

Safety switch input

Becomes “OFF” when the machine head is tilted back.

Actuator switch input

“ON” when the switch is ON, and “OFF” when the switch is OFF.

Knee switch or standing pedal presser foot lifter switch input

“ON” when the switch is ON, and “OFF” when the switch is OFF.

Standing pedal speed input

Depress the variable speed pedal of the standing pedal.

Standing pedal high speed switch input

“ON” when the switch is ON, and “OFF” when the switch is OFF.

Standing pedal thread trimming switch input

“ON” when the switch is ON, and “OFF” when the switch is OFF.

Standing pedal low speed switch input

“ON” when the switch is ON, and “OFF” when the switch is OFF.

Operation panel key input

Press any key on the panel other than B or B . The name of the key pressed will be displayed as the right four characters.

If no key is pressed, “OFF” will be displayed. * Refer to <Operation panel key input> (P.28).

2138M 2139M

[ 16] [ OH] [0.000]-[5.000] [V] Motor overheating protection sensor input

25

S-7200C

4. FUNCTION SETTINGS (G50 OPERATION PANEL)

Item No. Item name Input status Check item and checking method

[ 17] [ IN1] [ ON]-[ OFF]

[ 18] [ IN2] [ ON]-[ OFF]

[ 19] [ IN3] [ ON]-[ OFF]

[ 20] [DIP1] [ ON]-[ OFF]

[ 21] [DIP2] [ ON]-[ OFF]

[ 22] [DIP4] [ ON]-[ OFF]

[ 23] [EDGK] [ ON]-[ OFF] Spare

[ 24] [EDGS] [ ON]-[ OFF] Spare

Option input 1

“ON” when the input signal is LOW, and “OFF” when it is HIGH.

Option input 2

“ON” when the input signal is LOW, and “OFF” when it is HIGH.

Option input 3

“ON” when the input signal is LOW, and “OFF” when it is HIGH.

DIP switch 1

“ON” when the switch is at ON, and “OFF” when the switch is at OFF.

DIP switch 2

“ON” when the switch is at ON, and “OFF” when the switch is at OFF.

DIP switch 4

“ON” when the switch is at ON, and “OFF” when the switch is at OFF.

S-7200C

26

4. FUNCTION SETTINGS (G50 OPERATION PANEL)

A

r

t

Select the test number

1

Test number

Test number Test name

[ ALL] All tests (Test 1-Test 7) [TES1] Test 1 (Individual) [TES2] Test 2 (Individual) [TES3] Test 3 (Individual) [TES4] Test 4 (Individual) [TES5] Test 5 (Individual) [TES6] Test 6 (Individual) [TES7] Test 7 (Individual)

Start the test A. For all tests ([ ALL])

2

B. For individual tests (example: [TES1])

Test number

Test result (OK / NG)

ll tests from Test 1 to Test 7 are carried out.

・ If all tests are completed and the results are

all OK, [7 OK] will be displayed as the right four characters in the main display.

・ If an NG result occurs during the test, [* NG]

will be displayed as the right four characters in the main display. (* indicates the numbe of the test which produced the NG result.)

The test specified by the number will be carried out. ・ If the test is completed and the result is

OK, [* OK] will be displayed as the righ four characters in the main display. If the result is NG, [* NG] will be displayed.

NOTE:

Once testing has started, no items other than a resolver signal test can be checked. To check a different item, carry out step 4 given below, and then change back to input check mode.

[If carrying out another resolver signal test]

3

1)

2) Repeat steps 1 and 2 above.

[To return to the normal sewing machine starting condition]

4

1) Press the power OFF switch to turn off the power.

2) Check that the power indicator (green) on the operation panel has turned off, and then turn the power back on.

NOTE:

If you turn the power back on while the power indicator (green) is still illuminated, [E131] may be displayed.

2020B

2021B 2022B

2023B

27

S-7200C

4. FUNCTION SETTINGS (G50 OPERATION PANEL)

Sewing speed control keys Lower thread counter keys

Key name Display Key name Display

Lower thread counter key

(A)

(B)

(C)

(D)

[D-DN]

Sewing speed control key

(D)

4172M, 2098B, 2099B, 4173M, 4171M, 2024B, 2025B

[ HUD]

[CTUP]

[CTDN]

[RSET]

[NTRM]

[A-UP]

[A-DN]

[C-UP]

[C-DN]

[D-UP]

[SPDN]

[SPUP]

2096B

[ SBT]

[ EBT]

[ RBT]

[ FIX]

[NAME]

[PLET]

[AUTO]

[ATRM]

[ WIP]

[ POS]

[CORR]

[SLOW]

[ENT]

[FUNC]

[SPED]

[LOCK]

4161M-4166M, 4168M, 4167M, 4174M, 2026B-2029B, 1990B, 1989B, 2030B

S-7200C

28

4. FUNCTION SETTINGS (G50 OPERATION PANEL)

４-１０. Output checking method

This is used at the following times.

・ When there is a problem with the operation panel PCB ・ When there is a problem with the drive mechanism ・ When you would like to check for broken codes.

You can check whether the signals being output by the CPU are driving the mechanisms correctly.

Change to output check mode

1

The item number (A) and the output status (B) will appear in the main

(While pressing the key, press the power ON switch.)

Select the item number (A)

2

* If 2 seconds pass without no operations having been carried out,

the four characters on the left side of the main display will alternately display the item number and the item name.

display (1) in orange.

2031B 2139M

(Item number)

(Item name)

3

[To check another item]

4

Return the treadle to the neutral position, and then repeat the operations in steps 2 and 3 above

[To return to the normal sewing machine starting condition]

5

Press the power OFF switch to turn off the power, and then turn the power back on.

The operation corresponding to the item number being checked will be carried out.

2036B 2097B

2159M

.

29

S-7200C

4. FUNCTION SETTINGS (G50 OPERATION PANEL)

The four characters on the left side of the main display on the operation panel show the item number/item name, and the four characters on the right side show the output status.

Item No. Item name Output status Check item and checking method

Thread trimming solenoid

[ 1] [ TRM] OFF

[ 2] [ WIP] OFF

[ 3] [ REV] OFF

[ 4] [ PRE] OFF

[ 5] [ OPT] OFF

[ 6] [INCH]

[ 7] [TRIM]

[ 8] [SLOW]

[ 9] [ SBT]

[ 10] [ EBT]

[ 11] [HIGH]

[ 12] [AUTO]

[ 13] [ POS]

[****] [sti/min]

Shows the actual

sewing machine

speed

When the treadle is depressed, the solenoid operates for 2 seconds. When the treadle is returned to the neutral position, the solenoid turns off.

Thread wiper solenoid

When the treadle is depressed, the solenoid operates for 2 seconds. When the treadle is returned to the neutral position, the solenoid turns off.

Quick reverse solenoid

When the treadle is depressed, the solenoid operates for 2 seconds. When the treadle is returned to the neutral position, the solenoid turns off.

Presser foot lifter solenoid

When the treadle is depressed, the solenoid operates for 2 seconds. When the treadle is returned to the neutral position, the solenoid turns off.

Option solenoid signal

When the treadle is depressed, the solenoid signal turns on for 2 seconds. When the treadle is returned to the neutral position, the solenoid turns off.

Inching speed operation

When the treadle is depressed, the upper shaft rotates at the inching speed. When the treadle is returned to the neutral position, the upper shaft stops.

Thread trimming speed operation

When the treadle is depressed, the upper shaft rotates at the thread trimming speed. When the treadle is returned to the neutral position, the upper shaft stops.

Slow speed operation

When the treadle is depressed, the upper shaft rotates at slow speed. When the treadle is returned to the neutral position, the upper shaft stops.

Start backtack sewing speed operation

When the treadle is depressed, the upper shaft rotates at the start backtack sewing speed. When the treadle is returned to the neutral position, the upper shaft stops.

End backtack sewing speed operation

When the treadle is depressed, the upper shaft rotates at the end backtack sewing speed. When the treadle is returned to the neutral position, the upper shaft stops.

High speed operation

When the treadle is depressed, the upper shaft rotates at a speed corresponding to the treadle depression amount (inching speed to maximum speed). When the treadle is returned to the neutral position, the upper shaft stops.

Automatic speed operation

When the treadle is depressed, the upper shaft rotates at the automatic speed. When the treadle is returned to the neutral position, the upper shaft stops.

Stop improvement speed operation

When the treadle is depressed, the upper shaft rotates at the stop improvement speed. When the treadle is returned to the neutral position, the upper shaft stops.

(Continued on next page.)

S-7200C

30

4. FUNCTION SETTINGS (G50 OPERATION PANEL)

Item No. Item name Output status Check item and checking method

[ 14] [BUZZ] OFF

[ 15] [ PNL] [****]

[ 16] [MOVE] OFF

[ 17] [OUT1] OFF

[ 18] [OUT2] OFF

Buzzer

When the treadle is depressed, the buzzer sounds for 1 second.

Panel display

When the treadle is depressed, checking of the operation panel indicators, main display, speed display and lower thread counter display starts. When the treadle is returned to the neutral position, all indicators will illuminate, and then the display will return to how it was before the treadle was depressed.

Operation synchronization signal

When the treadle is depressed, the operation synchronization signal turns on. When the treadle is returned to the neutral position, the signal turns off.

Option output signal 1

When the treadle is depressed, the option output signal turns on. When the treadle is returned to the neutral position, the signal turns

off.

Option output signal 2

When the treadle is depressed, the option output signal turns on. When the treadle is returned to the neutral position, the signal turns

off.

31

S-7200C

４-１１. Protection settings

Set the power switch to OFF, and then set DIP switch 1 to OFF.

1

Change to protect setting mode

2

(While pressing the key and the start backtack key, press the power

Set the protection level (0 to 3)

3

ON switch.)

NOTE:

* If the protection level is different from the original value, the

4. FUNCTION SETTINGS (G50 OPERATION PANEL)

(Protection level)

[PLV] and the protection level will appear in the main display (1) in orange. (At the time of shipment from the factory, the protection level is set to “1”.)

2032B 2138M

The range for disabling operation varies depending on the setting for DIP switch 1. For details, refer to <Protection setting list> (P.34).

protection level will flash in the display.

[If set to level 0 – 2]

Confirm the protection level (example: set to level 2)

4

5

2033B

The protection level will return to illuminating steadily.

Protect setting mode will be exited and normal operation will be possible

2034B

4193M

.

S-7200C

32

4. FUNCTION SETTINGS (G50 OPERATION PANEL)

[If set to level 3]

To make individual settings, select level 3.

Confirm the protection level

4

Individual setting number

* When the

Select an individual setting number (1 – 6)

5

Make the individual protection (ON/OFF) setting

6

Protection setting value (ON/OFF)

key is pressed, the display will return to the

protection level setting display [PLV 3].

NOTE:

The range for disabling operation varies depending on the setting for DIP switch 1. For details, refer to <Protection setting list> (P.34).

Individual

setting number

1 MAX key 2 Memory switches (for administrator) 3 Correction key 4 Mainly keys with indicators 5 Stitch number settings (ABCD, EF) 6 Initialization

Use the key to turn the setting on, and use the key to turn the setting off.

* If the individual protection setting value is different from the

original value, the protection setting value will flash.

Details of main operation disabled

2035B 4161M

2036B

Confirm the protection setting value

7

8

The protection setting value will return to illuminating steadily.

2033B 2138M 2139M

Protect setting mode will be exited and normal operation will be possible.

4192M

4193M

33

S-7200C

4. FUNCTION SETTINGS (G50 OPERATION PANEL)

○: Enabled □: Immediately after the power is turned on, the LOCK key icon will show the previous status. After this, the LOCK key can

be used to change the enabled/disabled status.

△: Immediately after the power is turned on, the function is disabled (the LOCK icon illuminates). After this, the LOCK key

can be used to change the enabled/disabled status.

×: Disabled

Level

Setting function

Sewing speed ([MAX] setting)

Memory Switch Setting

[Half stitch] key

[Needle up/down] setting

[Correction] setting

[Slow start] setting

[Thread trimming disabled] setting

[Thread wiping] setting

[LOCK] setting

[Start backtack] setting

[End backtack] setting

[Continuous backtack] setting

[Fixed stitch] setting

[Name label] setting

[Pleat presser sewing] setting

[AUTO] setting

[Automatic thread trimming] setting

A-D stitch number setting

E / F stitch number setting

Speed level setting

Lower thread counter initial value setting

Initialization

Protection setting

* Values inside ( ) are when DIP switch 1 is set to ON. * Individual settings are disabled if even one of 1 to 6 is ×. If all columns are blank, the setting is enabled.

After startup For operator

When power is on For mechanic

3 (Individual setting)

0 1 2

□

(×) △(×) × (×) □ (×) × (×) (×) (×) (×) (×) (×)

□

(×) △(×) × (×) □ (×) (×) (×) (×) (×) (×) (×)

○

(○) ○ (○) × (×) ○ (○) ( ) × (×) ( ) ( ) ( ) ( )

○

(○) ○ (○) ○ (○) ○ (○) ( ) ( ) ( ) ( ) ( ) ( )

○

(○) ○ (○) × (×) ○ (○) ( ) ( ) ( ) × (×) ( ) ( )

○

(○) ○ (○) × (×) ○ (○) ( ) ( ) × (×) × (×) ( ) ( )

○

(○) ○ (○) × (×) ○ (○) ( ) ( ) ( ) × (×) ( ) ( )

○

(○) ○ (○) × (×) ○ (○) ( ) ( ) ( ) × (×) ( ) ( )

○

(○) ○ (○) × (×) ○ (○) ( ) ( ) ( ) × (×) ( ) ( )

○

(×) ○(×) ×(×) ○ (×) (×) (×) (×) × (×) (×) (×)

○

(○) ○ (○) × (×) ○ (○) ( ) ( ) ( ) × (×) ( ) ( )

○

(○) ○ (○) × (×) ○ (○) ( ) ( ) ( ) × (×) ( ) ( )

○

(○) ○ (○) × (×) ○ (○) ( ) ( ) ( ) × (×) ( ) ( )

○

(○) ○ (○) × (×) ○ (○) ( ) ( ) ( ) × (×) ( ) ( )

○

(○) ○ (○) × (×) ○ (○) ( ) ( ) ( ) × (×) ( ) ( )

○

(○) ○ (○) × (×) ○ (○) ( ) ( ) ( ) × (×) ( ) ( )

○

(○) ○ (○) × (×) ○ (○) ( ) ( ) ( ) × (×) ( ) ( )

○

(○) ○ (○) × (×) ○ (○) ( ) ( ) ( ) × (×) ( ) ( )

○

(○) ○ (○) × (×) ○ (○) ( ) ( ) ( ) ( ) × (×) ( )

○

(○) ○ (○) × (×) ○ (○) ( ) ( ) ( ) ( ) × (×) ( )

○

(○) ○ (○) × (×) ○ (○) ( ) ( ) ( ) ( ) × (×) ( )

○

(×) ○(×) ○(×) ○ (×) ( ) ( ) ( ) ( ) × (×) ( )

○

(×) ○(×) ○(×) ○ (×) (×) (×) (×) (×) (×) × (×)

○

(×) ○(×) ○(×) ○ (×) (×) (×) (×) (×) (×) (×)

All OFF

①

=ON ② =ON ③ =ON ④ =ON ⑤ =ON ⑥ =ON

S-7200C

34

4. FUNCTION SETTINGS (G50 OPERATION PANEL)

４-１２.

Software version checking method

Change to version display mode

1

(While pressing the speed key (+), press the power ON switch.)

Select the software type (A)

2

The software type (A) and the software version (B) will be displayed in the main display (1) in orange.

Software type (A) Software Version (B)

[1. MN] Main CPU [1.0|00]

[2. PL] Panel CPU [1.000] [3.IPL] Main IPL [1.000]

* Initially the main CPU version will be displayed.

2037B

3

Version display mode will be exited and normal operation will be possible.

2038B

4193M

35

S-7200C

r

4. FUNCTION SETTINGS (G50 OPERATION PANEL)

４-１３. Viewing maintenance information

This allows you to check the information which is stored in the head detector unit.

Change to maintenance display mode

1

(While pressing the keys, press the power ON switch.)

Select the item name

2

The item name (A) and the details fo that item (B) will be displayed in the main display (1) in orange.

No. Item name

1 Grease up counter *1 [GUCT] [ 0-102](%) 2 Grease-up time [GULI] [4000] (hours)

Cumulative power on time

3

(7 characters) Cumulative operating time

4

(7 characters)

Item name (A)

2039B 2138M 2139M

display

[PONT] [****] (hours) *2

[MONT] [****] (hours) *2

Details (B)

3

*1 : If the RESET key is pressed for 2 seconds or more while the grease up

counter details are being displayed, the counter will be cleared.

*2 : Normally the last 4 digits of the counter are displayed, but if you press the

key (2), the first three digits ([T***]) will be displayed.

2036B 2040B 2138M

Maintenance display mode will be exited and normal operation will be possible.

4193M

S-7200C

36

4. FUNCTION SETTINGS (G50 OPERATION PANEL)

４-１４. Adjusting the sewing machine reference position

Change to sewing machine reference position adjustment mode

1

The adjustment item name (A) and the

adjustment value for that item (B) will be

(While pressing the key, press the power ON switch.)

displayed in the main display (1) in orange.

Select the adjustment item

2

2041B 2138M

2042B

Adjustment item

Sewing machine reference

1

position (Adjustment when motor is replaced) Needle up stop position (during

2

individual adjustment) Needle down stop position

3

(during individual adjustment)

Adjustment

item name (A)

Main display

[MORG] -20-20 degrees

[UPOS] -5-10 degrees

[DPOS] -5-10 degrees

* “1 Sewing machine reference position” is adjusted at the time of shipment from the factory. * If you would like to change only the stop positions, make adjustments at “2 Needle up stop position” or “3

Needle down stop position”.

NOTE:

When an adjustment value is changed, the needle up and needle down signal positions will change. Other settings such as solenoid operation timing and needle up/down stop positions will change in line with this.

Set the adjustment value (B)

3

* If you would like to clear the value which is being displayed, press

the

* If the adjustment value is different from the original value, the

adjustment value will flash.

key.

Adjustment

value (B)

4

5

37

2043B 4173M

Save the adjustment value. The adjustment value (B) will change from flashing to illuminated steadily.

NOTE:

Any changed settings will take effect after sewing machine reference position adjustment mode has been exited.

Sewing machine reference position adjustment mode will be exited and normal operation will be possible.

S-7200C

4192M

4193M

5. FUNCTION SETTINGS (G10 OPERATION PANEL)

５. FUNCTION SETTINGS (G10 OPERATION PANEL)

５-１. List of special functions when power is turned on

This section contains a list of functions for the G10 operation panel and the key operations which are used to call the setting mode for the functions.

1991B

Memory switch setting mode (Standard)

1

(This setting is not possible with the G10

operation panel.)

Memory switch setting mode (Advanced)

2

(This setting is not possible with the G10

operation panel.)

Data initialization function

3

2045B

Protect setting mode

7

[DIP switch 1 = OFF]

(C)

Software version display function

8

Refer to “5-7. Protection settings”.

Refer to “5-8. Software version checking method”.

Treadle position adjustment mode

9

[DIP switch 4 = ON]

Refer to “5-3. Data initialization function”.

Error log display function

4

Refer to “5-4. Error history checking method”.

Input checking function

5

(A)

Output checking function

6

(A)

Refer to “5-6. Output checking method”.

Refer to “5-5. Input checking method”.

2046B, 2047B, 1999B, 1996B

(C)

Refer to “13. SETTING METHOD FOR STANDARD DEPRESSION STROKES”. Sewing machine reference position adjustment mode

10

(B)

Refer to “5-10. Adjusting the sewing machine reference position”.

Maintenance information viewing mode

11

(D)

Function setting mode

12

Refer to “5-9. Viewing maintenance information”.

Refer to “5-2. Function setting method”.

1997B, 2048B, 1999B, 2000B, 2049B

S-7200C

38

5. FUNCTION SETTINGS (G10 OPERATION PANEL)

y

５-２. Function setting method

Change to function setting mode

1

(While pressing the end backtack key, press the power ON switch.)

Select the setting item (Refer to <Setting item list> (P.40))

2

(Setting item)

4203M

Change to the setting value display

3

Change the setting value.

4

Confirm the setting value.

5

(Setting value)

* If the setting value is different from the original details, the

setting value will flash.

NOTE:

If the start backtack key (1) is pressed once more, the start backtack indicator will switch off and the displa will return to the setting item.

(Setting item)

2050B

2051B

2052B

To set other items, repeat the operations in steps 2 to 5 and change the settings.

6 7

Function setting mode will be exited and normal operation will be possible.

39

S-7200C

2053B

4206M

5. FUNCTION SETTINGS (G10 OPERATION PANEL)

Display

Setting item

Needle up/down stop [UPDN]

Correction sewing [CORR]

Slow start [SLOW]

Thread trimming disable [TRDI]

Start backtack speed [SBSP] [****]

Automatic operation during continuous backtack sewing

Pedal response switching settings immediately after sewing has started

Pedal response immediately after sewing has started

Start backtack sewing pattern

End backtack sewing pattern

sewing pattern

function

(*1) The inching speed setting value is the value in the machine head memory.

Setting item

display

[CBAT]

[SLMD]

[SLPN] [ *]

[SBTP]

[EBTP]

[RBTP]

[ RUP]

[BTAD]

Setting value

display [ UP] Needle up stop [ DN] Needle down stop [ ON] Correction sewing

[ OFF] No correction sewing

[ ON] Slow start

[ OFF] No slow start

[ ON] Thread trimming disabled

[ OFF] Thread trimming enabled

[ ON] Automatic operation

[ OFF] No automatic operation

[ OFF] No switching

[ 1]

[ 2]

[ 3] Slow start always when sewing starts

[ 2] A-B [ 3] B-A-B [ 4] A-B-A-B [ 5] B-A-B-A-B [ 6] A-B-A-B-A-B [ 2] C-D [ 3] C-D-C [ 4] C-D-C-D [ 5] C-D-C-D-C [ 6] C-D-C-D-C-D [ 1] A, B, C, D Continuous backtack [ 2] A, B × D

[ ON] Function available Quick reverse needle up

[ OFF] Function not available

[ ON] Function available Backtack matching

[ OFF] Function not available

Setting value or operation when setting

Inching speed (*1)-3000 (Initial value depends on machine head specifications)

Slow start only when sewing starts after thread trimming Slow start only when sewing starts after sewing has been paused

* Setting range: 1-5

・ The larger the value, the slower is the

speed when sewing starts.

・ If [SLMD] is set to “OFF”, this setting is

disabled.

Default value

[ DN]

[ OFF]

[1200] [1800]

[ OFF]

[ 1]

[ 2]

[ 1]

[ OFF]

S-7200C

40

5. FUNCTION SETTINGS (G10 OPERATION PANEL)

５-３. Data initialization function

NOTE:

When DIP switch 1 is set to ON, set it to OFF and then carry out the following operations.

Change to initialization mode

1

[in.AL] will appear in the display (1).

(While pressing the continuous backtack key, press the power ON switch.)

Display

1 [in.AL]

* The only initialization item is clear all.

Clear all

(Sewing programs (panel display), memory switch settings, speed settings and function settings [Refer to <Setting item list> (P.40)] will be initialized.)

Initialization item

2

Function setting mode will be exited and normal operation will be possible. (If you would like to cancel initialization, set the power switch to OFF.)

4222M

(Press for 2 seconds or more.)

4206M

41

S-7200C

r

f

５-４. Error history checking method

The past error history can be checked by the following procedure.

Change to error history display mode

1

5. FUNCTION SETTINGS (G10 OPERATION PANEL)

(Error history number)

(While pressing the MAX key, press the power ON switch.)

Change the error history number

2

Check the history details

3

[If checking the details for another error history number]

4

1)

(Error code)

(Error history number)

Up to 99 histories (01-99) are stored in order starting from the newest. (No. 01 represents the newest error.)

If there is no error code, [E---] will be displayed.

* While the key (1) or the key (2) is being pressed,

the display will change to displaying the time the erro occurred.

・While the key is being pressed, the last 4 digits are

displayed. [Units: 1 hour]

・While the key is being pressed, the first 3 digits

([T***]) are displayed. [Units: 10,000 hours] However, i the total is less than 10,000 hours, the first 3 digits will not be displayed.

・When the key is released, the display returns to the

original error code.

NOTE:

The following error cods do not remain in the history, and so they will not be displayed.

[E065, E066, E095, E440, E441, E901]

2056B 2139M 2138M

2054B

2055B

2) Repeat steps 2 and 3 above.

[To exit error history display mode]

5

Set the power switch to OFF.

2057B

S-7200C

42

5. FUNCTION SETTINGS (G10 OPERATION PANEL)

５-５. Input checking method

This is used at the following times.

・ When there is a problem with an operation panel key, PCB or sensor ・ When you would like to check for broken cords ・ When you would like to adjust a sensor position

This lets you check if the CPU is reading signals from the keys and the sensors correctly.

Change to input check mode

1

(While pressing the key, press the

power ON switch.)

Select the item number (A)

2

(Item number)

* If 2 seconds pass without no operations having been carried

out, the display will alternately show the item number and the item name.

(Item number)

2058B 2138M

(Item name)

Change to input status display

3

Check the responses from the keys and switches, etc. while referring to the <Input check list> (P.44).

4

[To check another item number]

5

1)

2) Repeat steps 2 to 4 above.

(Input status)

(Setting item)

2059B 2060B

2061B

2073B

Set the power switch to OFF and then turn the power back on again.

6

43

S-7200C

5. FUNCTION SETTINGS (G10 OPERATION PANEL)

The display on the operation panel shows the item number/item name, or the input status.

Item No. Item name Input status Checking item and checking method

[ 1] [ PDL] [0.000]-[5.000] [V]

[ 2] [ ENC] [ 0]-[ 359] [degrees]

[ 3] [NLUP] [ ON]-[ OFF]

[ 4] [NLDN] [ ON]-[ OFF]

[ 5] [UPOG] [ ON]/[ OFF]

[ 6] [REZL] [ ALL]/[TES1]-[TES7]

[ 7] [VOLT] [ ***]

[ 8] [HEAD] [ ON]-[ OFF]

[ 9] [ BT] [ ON]-[ OFF]

[ 10] [ PRE] [ ON]-[ OFF]

[ 11] [OPDL] [0.000]-[5.000] [V]

[ 12] [HIGH] [ ON]-[ OFF]

[ 13] [TRIM] [ ON]-[ OFF]

[ 14] [INCH] [ ON]-[ OFF]

[ 15] [ PNL] [****]/[ OFF]

[ 16] [ OH] [0.000]-[5.000] [V] Motor overheating protection sensor input

Treadle pedal voltage

Depress the treadle forward/backward.

Motor position signal (needle up side reference signal = 0 degrees)

Turn the machine pulley by hand.

* The input will be unstable until the reference signal from the

resolver is detected.

Needle up signal

Turn the machine pulley by hand.

* The input will be unstable until the reference signal from the

resolver is detected.

Needle drop signal

Turn the machine pulley by hand. * The input will be unstable until the reference signal from the

resolver is detected.

Needle up sensor signal

Turn the machine pulley by hand.

Resolver signal test

* Refer to <Resolver signal test> (P.46).

Power supply voltage

100 V systems : Display value ÷ 2 is the actual voltage. 200 V systems : The display value is the actual voltage. 400 V systems : Display value × 2 is the actual voltage. * There may be an error of about ±5% in the display value.

Safety switch input

Becomes “OFF” when the machine head is tilted back.

Actuator switch input

“ON” when the switch is ON, and “OFF” when the switch is OFF.

Knee switch or standing pedal presser foot lifter switch input

“ON” when the switch is ON, and “OFF” when the switch is OFF.

Standing pedal speed input

Depress the variable speed pedal of the standing pedal.

Standing pedal high speed switch input

“ON” when the switch is ON, and “OFF” when the switch is OFF.

Standing pedal thread trimming switch input

“ON” when the switch is ON, and “OFF” when the switch is OFF.

Standing pedal low speed switch input

“ON” when the switch is ON, and “OFF” when the switch is OFF.

Operation panel key input

Press any key on the panel other than B or B . The name of the key pressed will be displayed as the right four characters.

If no key is pressed, “OFF” will be displayed. * Refer to <Operation panel key input> (P.47).

(Continued on next page.)

2138M 2139M

S-7200C

44

5. FUNCTION SETTINGS (G10 OPERATION PANEL)

Item No. Item name Input status Checking item and checking method

[ 17] [ IN1]

[ 18] [ IN2]

[ 19] [ IN3]

[ 20] [DIP1]

[ 21] [DIP2]

[ 22] [DIP4]

[ ON]～[ OFF]

Option input 1

“ON” when the input signal is LOW, and “OFF” when it is HIGH.

Option input 2

“ON” when the input signal is LOW, and “OFF” when it is HIGH.

Option input 3

“ON” when the input signal is LOW, and “OFF” when it is HIGH.

DIP switch No. 1

“ON” when the switch is at ON, and “OFF” when the switch is at OFF.

DIP switch No. 2

“ON” when the switch is at ON, and “OFF” when the switch is at OFF.

DIP switch No. 4

“ON” when the switch is at ON, and “OFF” when the switch is at OFF.

45

S-7200C

A

5. FUNCTION SETTINGS (G10 OPERATION PANEL)

Change to test number display

1

(Item number)

Select the test number

2

Start the test

3

When the thread wiper key is pressed, the test starts. A. For all tests [ ALL]

Test number

Test result (OK / NG)

B. For individual tests [TES*]

Test number

NOTE:

Once testing has started, no items other than a resolver signal test can be checked. To check a different item, carry out step 5 given below, and then change back to input check mode.

[If carrying out another resolver signal test]

Test result (OK / NG)

4

(Test number)

Number Test number Test name

1 [ ALL] All tests (Test 1-Test 7) 2 [TES1] Test 1 (Individual) 3 [TES2] Test 2 (Individual) 4 [TES3] Test 3 (Individual) 5 [TES4] Test 4 (Individual)

6 [TES5] Test 5 (Individual) 7 [TES6] Test 6 (Individual) 8 [TES7] Test 7 (Individual)

ll tests from Test 1 to Test 7 are carried out.

・ If all tests are completed and the results are all OK, [7 OK]

will be displayed.

・ If an NG result occurs during the test, [* NG] will be

displayed as the right four characters in the display. (* indicates the number of the test which produced the NG result.)

Number of the test specified will be carried out.

・ If the test is completed and the result is OK, [* OK] will be

displayed as the right four characters in the display.

・ If the result is NG, [* NG] will be displayed.

2063B

2064B

2065B 2066B

Returns to test number display.

[To return to the normal sewing machine starting condition]

5

(Check)

2067B

NOTE:

If you turn the power back on while the power indicator (green) is still illuminated, [E131] may be displayed.

S-7200C

2068B

46

5. FUNCTION SETTINGS (G10 OPERATION PANEL)

Key name Display Key name Display

2045B

(A)

(B)

(C)

[A-UP]

[A-DN]

[B-UP]

[B-DN]

[C-UP]

[C-DN]

2024B-2025B

(D)

2024B, 2025B, 4174M, 4161M-4163M, 2096B

[D-UP]

[D-DN]

[ WIP]

[ EBT]

[ RBT]

[SPED]

47

S-7200C

5. FUNCTION SETTINGS (G10 OPERATION PANEL)

５-６. Output checking method

This is used at the following times.

・ When there is a problem with the operation panel PCB ・ When there is a problem with the drive mechanism ・ When you would like to check for broken cords

You can check whether the signals being output by the CPU are driving the mechanisms correctly.

Change to output check mode

1

(Item number)

(While pressing the key, press the power ON switch.)

Select the item number

2

(Item number)

Change to output status display

3

4

[To check another item]

5

1) Return the treadle to the neutral position

2)

The operation corresponding to the item number being checked will be carried out.

(Item number)

* If 2 seconds pass without no operations having been carried out,

the display will alternately show the item number and the item name.

(Item number)

(Item name)

(Output status)

2070B 2139M

2059B 2071B

2072B

2159M

3) repeat the operations in steps 2 to 4 above.

Press the power OFF switch to turn off the power, and then turn the power back on.

6

S-7200C

2073B

48

5. FUNCTION SETTINGS (G10 OPERATION PANEL)

The display on the operation panel shows the item number/item name, or the output status.

Item No. Item name Output status Checking item and checking method

Thread trimming solenoid

[ 1] [ TRM] OFF

[ 2] [ WIP] OFF

[ 3] [ REV] OFF

[ 4] [ PRE] OFF

[ 5] [ OPT] OFF

[ 6] [INCH]

[ 7] [TRIM]

[ 8] [SLOW]

[ 9] [ SBT]

[ 10] [ EBT]

[ 11] [HIGH]

[ 12] [AUTO]

[ 13] [ POS]

[****] [sti/min]

Shows the actual

sewing machine

speed

When the treadle is depressed, the solenoid operates for 2 seconds. When the treadle is returned to the neutral position, the solenoid turns off.

Thread wiper solenoid

When the treadle is depressed, the solenoid operates for 2 seconds. When the treadle is returned to the neutral position, the solenoid turns off.

Quick reverse solenoid

When the treadle is depressed, the solenoid operates for 2 seconds. When the treadle is returned to the neutral position, the solenoid turns off.

Presser foot lifter solenoid

When the treadle is depressed, the solenoid operates for 2 seconds. When the treadle is returned to the neutral position, the solenoid turns off.

Option solenoid signal

When the treadle is depressed, the solenoid signal turns on for 2 seconds. When the treadle is returned to the neutral position, the solenoid signal turns off.

Inching speed operation

When the treadle is depressed, the upper shaft rotates at the inching speed. When the treadle is returned to the neutral position, the upper shaft stops.

Thread trimming speed operation

When the treadle is depressed, the upper shaft rotates at the thread trimming speed. When the treadle is returned to the neutral position, the upper shaft stops.

Slow speed operation

When the treadle is depressed, the upper shaft rotates at slow speed. When the treadle is returned to the neutral position, the upper shaft stops.

Start backtack sewing speed operation

When the treadle is depressed, the upper shaft rotates at the start backtack sewing speed. When the treadle is returned to the neutral position, the upper shaft stops.

End backtack sewing speed operation

When the treadle is depressed, the upper shaft rotates at the end backtack sewing speed. When the treadle is returned to the neutral position, the upper shaft stops.

High speed operation

When the treadle is depressed, the upper shaft rotates at a speed corresponding to the treadle depression amount (inching speed to maximum speed). When the treadle is returned to the neutral position, the upper shaft stops.

Automatic speed operation

When the treadle is depressed, the upper shaft rotates at the automatic speed. When the treadle is returned to the neutral position, the upper shaft stops.

Stop improvement speed operation

When the treadle is depressed, the upper shaft rotates at the stop improvement speed. When the treadle is returned to the neutral position, the upper shaft stops.

49

S-7200C

5. FUNCTION SETTINGS (G10 OPERATION PANEL)

Item No. Item name Output status Checking item and checking method

[ 14] [BUZZ] OFF

[ 15] [ PNL] [****]

[ 16] [MOVE] OFF

[ 17] [OUT1] OFF

[ 18] [OUT2] OFF

Buzzer

When the treadle is depressed, the buzzer sounds for 1 second.

Panel display

When the treadle is depressed, checking of the operation panel indicators and display will start. When the treadle is returned to the neutral position, all indicators will illuminate, and then the display will return to how it was before the treadle was depressed.

Operation synchronization signal

When the treadle is depressed, the operation synchronization signal turns on. When the treadle is returned to the neutral position, the signal turns off.

Option output signal 1

When the treadle is depressed, the option output signal turns on. When the treadle is returned to the neutral position, the signal turns

off.

Option output signal 2

When the treadle is depressed, the option output signal turns on. When the treadle is returned to the neutral position, the signal turns

off.

S-7200C

50

5. FUNCTION SETTINGS (G10 OPERATION PANEL)

５-７. Protection settings

Set the power switch to OFF, and then set DIP switch 1 to OFF.

1

Change to protect setting mode

2

(While pressing the key and the start backtack key, press the power

Set the protection level (0 to 3)

3

[If set to level 0 – 2]

Confirm the protection level (example: set to level 2)

ON switch.)

NOTE:

The range for disabling operation varies depending on the setting for DIP switch 1. For details, refer to <Protection setting list”> (P.53). * If the protection level is different from the original value, the

4

2074B 2138M

(Protection level)

[PLV] and the protection level will be displayed in the display. (* is the protection level. At the time of shipment from the factory, the protection level is set to “1”.)

protection level will flash in the display.

2033B

5

(Flashing)

Protect setting mode will be exited and normal operation will be possible

(Illuminated)

2075B

.

4206M

51

S-7200C

[If set to level 3]

To make individual settings, select level 3.

Confirm the protection level

4

NOTE:

* When the

protection level setting display [PLV 3].

Select an individual setting number (1-6)

5

key is pressed, the display will return to the

Make the individual protection (ON/OFF) setting

6

Confirm the protection setting value

7

5. FUNCTION SETTINGS (G10 OPERATION PANEL)

Individual setting number

Individual protection setting value ([-]:OFF、[□]:ON)

NOTE:

The range for disabling operation varies depending on the setting for DIP switch 1.

For details, refer to <Protection setting list> (P.53).

Individual

setting number

1 MAX key 2 Function setting 3 None (setting disabled) 4 Mainly keys with indicators 5 Stitch number settings (ABCD) 6 Initialization

Details of main operation disabled

Use the key to turn the setting on, and use the key to turn the setting off.

* If the individual protection setting value is different from the

original value, the protection setting value will flash.

2100B 2138M 2139M

The protection setting value will return to illuminating steadily.

2076B 4161M

2077B

8

2078B

Protect setting mode will be exited and normal operation will be possible.

S-7200C

4206M

52

5. FUNCTION SETTINGS (G10 OPERATION PANEL)

Enabled

○: ×:

Disabled

Level

Setting function

Sewing speed ([MAX] setting)

Function setting

[Thread wiping] setting

[Start backtack] setting

[End backtack] setting

[Continuous backtack] setting

A-D stitch number setting

Initialization

Protection setting

* Values inside ( ) are when DIP switch 1 is set to ON. * Individual settings are disabled if even one of 1 to 6 is ×. If all columns are blank, the setting is enabled. * The setting details for level 0 and level 1 are the same.

3 (Individual setting)

0 1 2

○

(×) ○(×) × (×) ○ (×) × (×)

○

(○) ○ (○) × (×) ○ (○) ( ) × (×) ( ) ( ) ( ) ( )

○

(○) ○ (○) × (×) ○ (○)

○

(○) ○ (○) × (×) ○ (○)

○

(○) ○ (○) × (×) ○ (○) ( ) ( ) ( ) × (×) ( ) ( )

○

(○) ○ (○) × (×) ○ (○)

○

(○) ○ (○) × (×) ○ (○)

○

(×) ○(×) ○(×) ○ (×)

○

(×) ○(×) ○(×) ○ (×)

All OFF

1

=ON

( ) ( ) ( )

( ) ( ) ( ) ( )

(×) (×) (×) (×) (×)

(×) (×) (×) (×) (×) (×)

2

=ON

(×) (×) (×) (×) (×)

3

=ON

4

=ON

(×)

×

5

=ON

( ) ( )

×

(×)

( )

(×)

6

×

53

S-7200C

5. FUNCTION SETTINGS (G10 OPERATION PANEL)

５-８.

1

Software version checking method

Change to version display mode

(While pressing the start backtack key, press the power ON switch.)

Check the versions of each software

2

If you press the buttons as shown in the table, you can check the various software versions.

Indicator Software Version display

Main CPU [1.0.00]

(Version display)

2079B

3

Panel CPU [1.000]

Main IPL [1.000]

2080B 2081B 2082B

Version setting mode will be exited and normal operation will be possible.

4206M

S-7200C

54

5. FUNCTION SETTINGS (G10 OPERATION PANEL)

r

*

５-９. Viewing maintenance information

This allows you to check the information which is stored in the head detector unit.

Change to maintenance display mode

1

(While pressing the and keys, press the power ON switch.)

Select the maintenance item

2

Change to detail display

3

(Item name)

(Details)

No. Item name

1 Grease up counter [GUCT] 2 Grease up time [GULI] 3 Cumulative power on time [PONT] 4 Cumulative operating time [MONT]

No. Item name Detail (Display)

1 Grease up counter *1 [ ***] 0-102(%) 2 Grease up time [4000] (Units: 1 hour)

Cumulative power on time

3

(7 characters) Cumulative operating time

4

(7 characters)

(Item name)

2083B 2138M 2139M

Item name

display

2084B

[****] (Units: 1 hour) *2

[To check another item]

4

1)

2) Repeat steps 2 to 3 above.

5

*1: If the continuous backtack key is pressed for 2 seconds o

more while the grease up counter details are being displayed, the counter will be cleared.

2: Normally the last 4 digits of the counter are displayed, but

if you press the key (1), the first three digits will be displayed.

2085B 2086B 2138M

(Item name)

Maintenance mode will be exited and normal operation will be possible.

2087B

55

S-7200C

4206M

5. FUNCTION SETTINGS (G10 OPERATION PANEL)

５-１０. Adjusting the sewing machine reference position

Change to sewing machine reference position adjustment mode

1

(Adjustment item name)

2088B 2138M

(While pressing the key, press the power ON switch.)

Select the adjustment item

2

(Adjustment item name)

* “1 Sewing machine reference position” is adjusted at the time of shipment from the factory.

* If you would like to change only the stop positions, make adjustments at “2 Needle up stop position” or “3 Needle

down stop position”.

NOTE:

When an adjustment value is changed, the needle up and needle down signal positions will change. Other settings such as solenoid operation timing and needle up/down stop positions will change in line with this.

Change to the adjustment value display

3

(Adjustment value)

Adjustment item

Sewing machine reference position (Adjustment when

1

motor is replaced) Needle up stop position

2

(during individual adjustment) Needle down stop position

3

(during individual adjustment)

* If you press the

to the adjustment value display.

Display

key once more, the display will return

Adjustment

item name

[MORG]

[UPOS]

[DPOS]

2089B

Adjustment

value

-20-20

degrees

-5-10

degrees

-5-10

degrees

Change the adjustment value

4

Confirm the adjustment value

5

6

If the adjustment value is different from the original value, the adjustment value will flash.

(Adjustment item name)

Sewing machine reference position adjustment mode will be exited and normal operation will be possible.

The display will return to the setting item name display.

NOTE:

S-7200C

Any changed settings will take effect after sewing machine reference position adjustment mode has been exited.

2090B 4161M

2091B

2092B

4206M

56

6. SETTING THE DIP SWITCHES (G50 AND G10 OPERATION PANELS)

６. SETTING THE DIP SWITCHES

(G50 AND G10 OPERATION PANELS)

DANGER

Wait at least 5 minutes after turning off the power switch and disconnecting the power cord from the wall outlet before opening the face plate of the control box. Touching areas where high voltages are present can result in severe injury.

1 Key protect settings ON/OFF Disables operation panel key operations. (*1) 2 Should always be set to OFF. 3 Should always be set to OFF. 4 Should always be set to OFF. (*2)

(*1) The disabled operations will vary depending on the ON/OFF settings. For details, refer to “4-11. Protection settings”

(P.32) or “5-7. Protection settings” (P.51).

(*2) If set to ON, operations using the treadle will be disabled, and so always be sure to set to OFF. If you set it to ON and

turn on the power, error code [E901] will be displayed on the operation panel.

57

S-7200C

7. MECHANICAL DESCRIPTIONS

７. MECHANICAL DESCRIPTIONS

The mechanisms operate in the order of the numbers given in the illustrations.

* <number> and [number] indicates the flow of each operations given.

* (number) indicates part names only. (They do not represent the flow of operations.)

７-１. Upper shaft and needle bar mechanism

4338M

1. Pulley

2. Motor shaft

3. Upper shaft

4. Thread take-up crank

5. Needle bar crank

6. Needle bar crank rod assembly

7. Needle bar clamp

8. Needle bar

(1) Needle bar bush U

(2) Needle bar bush D

The needle bar is guided by needle bar bush U (1) and needle bar bush D (2).

S-7200C

58

7. MECHANICAL DESCRIPTIONS

７-２. Lower shaft and rotary hook mechanism

4339M

1. Pulley

2. Motor shaft

3. Joint assembly

4. Timing pulley U

5. Timing belt

6. Timing pulley D

7. Lower shaft

8. Lower shaft gear

9. Rotary hook shaft gear

10. Rotary hook shaft

11. Rotary hook assembly

59

S-7200C

７-３. Feed mechanism

Feed dog up/down movement

7. MECHANICAL DESCRIPTIONS

4340M

Feed dog forward/back movement

1. Pulley

2. Upper shaft

3. Lower shaft

(Feed dog up/down movement) (Feed dog forward/back movement) <4> Feed lifting eccentric wheel assembly 4. Level feed eccentric wheel assembly <5> Feed lifting feed shaft assembly 5. Level feed connecting rod <6> Feed bar 6. Feed regulator assembly

7. Feed rock shaft

8. Feed rock bracket arm

9. Feed bar shaft assembly

10. Feed bar

11. Feed dog

*The feed locus for -[][]S specifications

is different from -[][]3 and -[][]5 specifications.

4341M

S-7200C

60

7. MECHANICAL DESCRIPTIONS

７-４. Quick reverse mechanism (quick back mechanism)

Normal feed

1. Actuator <1> Reverse lever

2. Quick reverse solenoid <2> Reverse sewing shaft

3. Solenoid lever <3> Handle shaft arm assembly

<4> Feed regulator connecting rod

4. Eccentric pin

5. Feed regulator shaft arm

6. Feed regulator shaft

7. Feed regulator shaft joint

8. Feed regulator connecting rod S

9. Feed regulator (Angle changes)

Reverse feed

4342M

61

S-7200C

7. MECHANICAL DESCRIPTIONS

７-５. Lubrication mechanism (thread take-up and rotary hook)

This sewing machine’s lubrication mechanism is a dry head type using tank lubrication. The oil level can be checked in the oil gauge window without needing to tilt back the machine head or operate the sewing machine.

Thread take-up minimum lubrication

To upper shaft, thread take-up and needle bar, etc. (-[]0[] specifications)

1. Oil feeding pocket

2. Oil tank

3. To upper shaft, thread take-up

and needle bar, etc.

4. Sub tank

(1) Oil gauge window

(2) Upper reference line

(3) Oil gauge

(4) Lower reference line

To rotary hook and rotary hook shaft (-[]0[], -[]3[] specifications)

1. Oil feeding pocket

2. Oil tank

3. To rotary hook and rotary hook shaft

4. Remaining return oil

5. Sub tank

(1) Oil gauge window

(2) Upper reference line

(3) Oil gauge

(4) Lower reference line

(5) Plunger pump

4343M

* Fine adjustments can be made to the lubrication amount for the rotary hook using the adjustment screw.

(Refer to “10-19. Adjusting the rotary hook lubrication amount (-[]0[], []3[] specifications)”.)

S-7200C

4344M

62

7. MECHANICAL DESCRIPTIONS

７-６. Thread trimming mechanism

７-６-１. Thread trimming mechanism operation sequence

The illustration below shows the mechanism with the high-speed rotary hook removed.

1） When thread rimming signal is input

1. Solenoid plunger

2. Solenoid lever

3. Thread trimmer cam lever shaft

4. Roller (Moves to above (1))

(1) Thread trimmer cam

2） Rocking of movable knife holder

1. Thread trimmer cam

2. Roller

3. Slide block

4. Forked shaft

5. Thread trimmer lever

6. Thread trimmer connecting rod

7. Movable knife holder

8. Movable knife

4345M

63

S-7200C

4346M

3） Thread trimming complete and operation stopped

7. MECHANICAL DESCRIPTIONS

1. Extension spring <1> Thread trimmer lever [1] Thread trimmer lever

2. Thread trimmer cam lever <2> Thread trimmer connecting rod [2] Forked shaft

3. Solenoid lever <3> Thread trimmer holder [3] Slide block

4.

Solenoid plunger <4> Movable knife [4] Roller

4） Thread trimming safety device

If the movable knife does not return to its original position, the operation shown in the illustration below ensures that the

movable knife will return to a position where it will not touch the needle.

1. Thread trimmer cam

2. Return roller

3. Slide block

4. Forked shaft

5. Thread trimmer lever

6. Thread trimmer connecting rod

7. Thread trimmer holder

8.

Movable knife

4347M

S-7200C

4348M

64

7. MECHANICAL DESCRIPTIONS

７-６-２.

Upper and lower thread trimming sequence

Movable knife

1. The needle rises 1.8 mm from its lowest position and the rotary hook tip catches the loop made by the needle. (For heavy-weight materials, it rises 2.2 mm.)

2. The thread trimming signal turns on and the thread trimming cam moves the movable knife. The upper thread is held by the rotary hook, and it passes underneath the inner rotary hook.

1644M 1643M

Movable knife

Lower

thread

Fixed knife

Upper thread

Movable knife

Lower thread finger

1645M 1646M

3. The tip of the movable knife pierces the middle of the triangular loop formed underneath the needle plate by the tip of the rotary hook as shown in the illustration, and the upper and lower threads are separated. At this time, the thread take-up is slightly higher than its lowest position. (approximately 330° of angular rotation of the upper shaft)

* If the timing for this is too fast, it will affect the separation of the threads by the movable knife, and thread trimming

errors may occur.

Fixed knife

Lower

thread

Upper thread

1647M

4. The upper and lower threads being held by the movable knife in step 3 are spread out gradually by the spread knives and the lower thread finger and are cut by the tip of the fixed knife. At this time the thread take-up reaches to about its highest position. When the knives are spreading the threads, the tension release is activated at the same time so that the upper thread is fed out smoothly and excessive force is not applied to the upper thread. The amount of thread which is held by the movable knife is the trailing length of upper thread from the needle after thread trimming and the length of lower thread trailing out from the bobbin case, and these amounts affect the formation of the seam at the next sewing start.

(The illustration shows the fixed knife removed.)

Movable knife

Lower thread finger

1648M

65

S-7200C

７-７. Tension release mechanism

7. MECHANICAL DESCRIPTIONS

4349M

When the thread trimming signal turns off, parts such as the solenoid lever [2] and the tension release wire [3] return to their original positions.

When the presser foot is lowered, the presser bar lifter lever spring (2) causes the tension release plate 9 to return.

(Presser foot is raised using the

knee lifter plate (1))

1. Knee lifter <1> Presser bar lifter lever [1] Thread trimmer solenoid

2. Knee lifter connecting rod [2] Solenoid lever

3. Knee lifter R [3] Tension release wire

4. Knee lifter complying bar

5. Knee lifter bar

6. Knee lifter lever

7. Knee lifter connecting rod

8. Presser bar lifter lever

9. Tension release plate

10. Tension release stud

11. Tension release pin

12. Tension disc presser

13. Tension disc (Lifts up)

(1) Knee lifter plate

(2) Presser bar lifter lever spring

(Presser foot is raised using the lifting lever)

(Thread trimming signal is input)

S-7200C

66

7. MECHANICAL DESCRIPTIONS

７-８. Thread wiper mechanism (option device)

(Thread wiper signal is input)

1. Thread wiper solenoid

2. Thread wiper rod

3. Thread wiper crank assembly

4. Thread wiper

(Thread wiper signal is turned off)

<1> Thread wiper spring <2> Thread wiper solenoid (Returns)

4350M

67

S-7200C

８. DISASSEMBLY

Wait at least 5 minutes after turning off the power switch and disconnecting the power cord from the wall outlet before opening the cover of the control box. Touching areas where high voltages are present can result in severe injury.

8. DISASSEMBLY

DANGER

CAUTION

Disassembly should only be carried out by a qualified technician.

Turn off the power switch before carrying out disassembly. If the treadle is depressed by mistake, the sewing machine might start operating and injury could result.

Use both hands to hold the machine head when tilting it back or returning it to its original position. If only one hand is used, the weight of the machine head may cause your hand to slip, and your hand may get caught.

Be sure to wear protective goggles and gloves when handling the lubricating oil and grease, so that they do not get into your eyes or onto your skin, otherwise inflammation can result. Furthermore, do not drink the oil or eat the grease under any circumstances, as they can cause vomiting and diarrhea. Keep the oil out of the reach of children.

Any problems in machine operation which result from unauthorized modifications to the machine will not be covered by the warranty.

Dissemble the parts in the order shown in the illustration.

* (number) indicates part names only. (It does not indicate the disassembly order.)

８-１. Knee lifter assembly

1. Bolt (Loosen)

2. Knee lifter bracket

4373M

S-7200C

68

8. DISASSEMBLY

８-２. Cable tie

1. Cable tie (Cut)

2. Cable tie (Cut)

3. Cable tie (Cut)

4. Cable tie (Cut)

4374M

８-３. Connector

1. Head detector unit connector

2. Operation panel connector

3. Resolver connector

4. Connector

5. Motor connector

6. Pins

(1) Connector

4375M

When pulling out the pin from the connector, use a pin puller manufactured by Molex (model no.

570316000).

69

S-7200C

８-４. Operation panel and head detector unit

8. DISASSEMBLY

1. Screw [2 pcs]

2. Operation panel

3. Screw [6 pcs]

4. Side plate

5. Screw [3 pcs] (Loosen)

6. Screw [2 pcs]

7. Head detector unit

8. Cord [2 pcs]

4376M

S-7200C

70

8. DISASSEMBLY

８-５. Covers and bobbin winder unit

1. Screw [3 pcs]

2. Face plate assembly

3. Screw [5 pcs]

4. Motor cover

5. Screw

6. Cord holder

7. Bobbin winder fixed screw [3 pcs]

8. Bobbin winder unit

71

4377M

S-7200C

８-６. Tension release wire and thread trimmer solenoid

8. DISASSEMBLY

1. Screw

2. Tension release wire

3. Screw

4. Wire holder D

5. Screw

6. Cord holder plate

7. Screw [3 pcs]

8. Thread trimmer solenoid

9. Tension release wire (Remove from tension release plate)

10. Screw

11. Wire holder U

12. Tension release wire (Pull out)

S-7200C

4378M

72

8. DISASSEMBLY

８-７. Wick holder and oil tube (-[]0[] specifications)

1. Wick (Unite the knot)

2. Screw

3. Wick holder

4. Screw

5. Cord holder

6. Vinyl tube (Remove from wire code holder)

7. Vinyl tube (Pull out)

4379M

73

S-7200C

８-８. Oil tank, bed bottom cover and sub tank

-[]0[]、[]3[] specifications only

-[]0[], []3[] specifications only

1. Screw

2. Screw

3. Sub tank assembly (Pull out)

4. Vinyl tube (Pull out)

5. Vinyl tube (Pull out)

6. Screw [2 pcs]

7. Oil tank

8. Screw [9 pcs]

9. Bed bottom cover

(1) Lubricating oil

1) Hold a dish under the lubricating oil drain hole, and then remove the screw to drain out the lubricating oil (1).

2) Install the screw to the lubricating oil drain hole.

8. DISASSEMBLY

4380M

S-7200C

74

8. DISASSEMBLY

８-９. Stand

1. Stand L [2 pcs]

2. Stand R [2 pcs]

4381M

８-１０. Safety switch and quick reverse solenoid

1. Screw

2. Tube holder

3. Vinyl tube (Pull out)

4. Screw

5. Washer

6. Safety switch

7. Screw [2 pcs]

8. Quick reverse solenoid

4382M

75

S-7200C

８-１１. Needle, presser foot and R-actuator

Integrated finger guard type

8. DISASSEMBLY

1. Set screw

2. Needle

3. Screw

4. Finger guard

5. Presser foot

6. Screw [2 pcs]

7. R-actuator

８-１２. Thread tension mechanism

4383M

1. Pre-tension assembly

2. Thread guide

3. Screw

4. Arm thread guide R

5. Set screw

6. Thread tension bracket assembly

7. Tension release pin

8. Tension release stud

9. Screw

10. Needle bar thread guide

11. Thread guide D

12. Set screw

13. Bobbin winder tension assembly

S-7200C

4384M

76

8. DISASSEMBLY

８-１３. Needle plate, feed dog, etc.

1. Flat screw [2 pcs]

2. Needle plate

3. Slide plate

4. Screw [2 pcs]

5. Feed dog

6. Screw

7. Ruler plate

4385M

77

S-7200C

8. DISASSEMBLY

８-１４. Bobbin case, rotary hook and thread trimmer mechanism

1. Screw

2. Hook stopper

3. Bobbin case

4. Set screw [3 pcs]

5. Rotary hook

6. Flat screw [3 pcs]

7. Knife holder presser plate

8. Thread trimmer lever spring (Remove from hole)

9. Screw (Loosen)

10. Thread trimmer lever assembly

11. Thread trimmer lever spring (Remove)

12. Set screw (Loosen)

13. Retaining ring E

14. Thread trimmer cam lever shaft (Pull out)

15. Cushion

16. Washer

17. Thread trimmer lever assembly

18. Extension spring

19. Collar

20. Rubber cushion

21. Forked shaft (Pull out)

S-7200C

4386M

78

8. DISASSEMBLY

８-１５. Feed bar mechanism

1. Set screw (Loosen)

2. Feed lifting rock bar shaft

3. Screw [2 pcs] (Loosen)

4. Feed bar assembly (Open)

5. Set screw [2 pcs] (Loosen)

6. Feed lifting eccentric wheel assembly

4387M

８-１６. Feed rock shaft

1. Rubber cap

2. Screw (Loosen)

3. Feed rock arm (Open)

4. Set screw [2 pcs] (Loosen)

5. Feed rock shaft (Pull out)

6. Washer

4388M

79

S-7200C

８-１７. Presser foot mechanism

8. DISASSEMBLY

1. Presser adjusting screw

2. Spring guide

3. Presser bar spring

4. Washer

5. Screw

6. Thread guide presser bar bracket

7. Screw

8. Presser bar guide bracket

9. Presser bar (Pull upward)

10. Retaining ring E

11. Presser bar lifter lever spring

12. Set screw

13. Presser bar lifter lever shaft (Slide to the right)

14. Retaining ring E

15. Presser bar lifter lever shaft (Pull out)

16. Washer

17. Tension release plate

4389M

S-7200C

80

8. DISASSEMBLY

８-１８. Knee lifter lever mechanism

1. Shoulder screw

2. Knee lifter bar (Pull out)

3. Shoulder screw

4. Presser bar lifter lever assembly (Remove in the direction of the allow)

5. Shoulder screw

6. Knee lifter lever

4390M

８-１９. Tension pulley

1. Bolt [2 pcs]

2. Tension pulley unit

4391M

81

S-7200C

８-２０. Needle bar and thread take-up mechanism

8. DISASSEMBLY

1. Rubber cap

2. Rubber cap [2 pcs]

3. Rubber cap

4. Rubber cap [2 pcs]

5. Rubber cap

6. Screw (Loosen)

7. Needle bar

8. Needle bar clamp

9. Needle bar guide slide block

10. Set screw (Loosen)

11. Needle bar bush U

12. Set screw [3 pcs] (Loosen)

13. Needle bar crank

14. Set screw [2 pcs] (Loosen)

15. Thread take-up lever assembly

16. Washer

4392M

S-7200C

82

8. DISASSEMBLY

８-２１. Pulley and motor

1. Screw [3 pcs]

2. Pulley washer [3 pcs]

3. Pulley

4. Screw [3 pcs]

5. Screw

6. Ground wire

7. Set screw [Two at motor side] (Loosen)

8. Motor (Pull out)

(1) Screw

(2) Motor

(a) Screw hole

If the motor will not pull out …

1) Insert the two screws (1) which were removed from the end of the motor into the screw holes (a) and tighten them. The motor (2) will lift up and be easier to remove.

NOTE:

Tighten the left and right screws little by little and evenly.

2) Once the motor (2) can be removed, remove the screws (1).

4393M

83

S-7200C

８-２２. Timing belt

1. Timing belt (Remove from timing pulley D)

2. Screw [3 pcs]

3. Fan

4. Flange

5. Timing belt (Remove from arm)

8. DISASSEMBLY

4394M

８-２３. Feed mechanism (1)

1. Spring assembly

2. Retaining ring C

3. Washer

4. Pin

5. Quick reverse solenoid plunger

4403M

S-7200C

84

8. DISASSEMBLY

８-２４. Feed mechanism (2)

1. Set screw (Loosen)

2. Eccentric pin

3. Set screw (Loosen)

4. Set screw (Loosen)

5. Solenoid lever assembly

6. Dial lock lever (Raise)

7. Stitch length dial (Turn to the left and remove)

8. Positioning pin

9. Notch spring

10. Set screw [2 pcs] (Loosen)

11. Feed regulator shaft

12. Washer

13. Feed regulator assembly

85

S-7200C

4395M

８-２５. Feed mechanism (3)

8. DISASSEMBLY

1. Set screw [2 pcs] (Loosen)

2. Set screw [2 pcs] (Loosen)

3. Feed regulator shaft (Pull out)

4. Spring hook arm assembly

5. Rubber cap

6. Rubber cap

7. Set screw [3 pcs] (Loosen)

8. Feed regulator support shaft

9. Feed regulator shaft L

10. Feed regulator assembly (Only the top can be removed)

S-7200C

4396M

86

8. DISASSEMBLY

８-２６. Lower shaft, lower shaft gear and feed regulator unit

1. Set screw [2pcs] (Loosen)

2. Set screw [2pcs] (Loosen)

3. Set screw [2pcs] (Loosen)

4. Lower shaft assembly

5. Feed regulator assembly

6. Lower shaft gear

4397M

87

S-7200C

８-２７. Plunger, rotary hook shaft, rotary hook shaft gear

and thread trimmer cam

8. DISASSEMBLY

1. Rubber cap

2. Cap screw pump

3. Spring

4. Plunger

5. Set screw [2 pcs] (Loosen)

８-２８. Reverse lever

6. Set screw [2pcs] (Loosen)

7. Set screw [2pcs]

8. Spacer [2pcs]

9. Rotary hook shaft

10. Rotary hook shaft gear

4398M

1. Socket bolt (Loosen)

2. Screw [2pcs]

3. Reverse lever assembly

4. Handle shaft support

S-7200C

4399M

88

9. ASSEMBLY

９. ASSEMBLY

DANGER

Wait at least 5 minutes after turning off the power switch and disconnecting the power cord from the wall outlet before opening the cover of the control box. Touching areas where high voltages are present can result in severe injury.

CAUTION

Assembly should only be carried out by a qualified technician.

Turn off the power switch before carrying out assembly. If the treadle is depressed by mistake, the sewing machine might start operating and injury could result.

If the power switch needs to be left on when carrying out some adjustment, be extremely careful to observe all safety precautions.

Use both hands to hold the machine head when tilting it back or returning it to its original position. If only one hand is used, the weight of the machine head may cause your hand to slip, and your hand may get caught.

Be sure to wear protective goggles and gloves when handling the lubricating oil and grease, so that they do not get into your eyes or onto your skin, otherwise inflammation can result. Furthermore, do not drink the oil or eat the grease under any circumstances, as they can cause vomiting and diarrhea. Keep the oil out of the reach of children.

Use only the proper replacement parts as specified by Brother.

If any safety devices have been removed, be absolutely sure to re-install them to their original positions and check that they operate correctly before using the machine.

Any problems in machine operation which result from unauthorized modifications to the machine will not be covered by the warranty.

89

S-7200C

9. ASSEMBLY

w

Assemble each part in the order shown in the illustration.

Apply grease to the places marked with white arrows in the illustrations.

■

Use the “Grease kit (SA8837-001)” specified by Brother for the grease.

Using the tube

９-１. Stitch length dial and feed regulator mechanism

4087M

With the positioning pin (a) set into the groove of the dial lock lever (b), scre in the stitch length dial (7).

1. Feed regulator assembly

2. Washer

3. Feed regulator shaft

4. Set screw [2 pcs] (Tighten)

5. Notch spring

6. Positioning pin

7. Stitch length dial (Screw in)

4405M

S-7200C

90

9. ASSEMBLY

９-２. Reverse lever

1. Handle shaft support

2. Reverse lever assembly

3. Screw [2 pcs]

4. Socket bolt (Tighten)

5. Spring (Attach to pin (a))

4406M

91

S-7200C