Brother BAS-311H User Manual

SERVICE MANUAL

BAS-311H

Please read this manual before making any adjustments.

DIRECT DRIVE

PROGRAMMABLE ELECTRONIC PATTERN SEWER

This service manual is intended for BAS-311H; be sure to read the BAS-311H instruction manual before this manual.

Carefully read the “SAFETY INSTRUCTIONS” below 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.

BAS-311H

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

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

WARNING

CAUTION

Symbols

…………………

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

This instructions which follow this term indicate situations where failure to follow the instructions may result in minor or moderate injury.

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.

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

The 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”.)

BAS-311H

[2] Notes on safety

Wait least 5 minutes after turning off the power switch and disconnecting the power cord from the wall outlet

before opening the control box cover. Touching areas where high voltages are present can result in severe injury.

Do not allow any liquids to get onto this sewing machine, otherwise fire, electric shocks or operating problems may occur.

If any liquid gets inside the sewing machine (machine head or control box), immediately turn off the power and disconnect the power plug from the electrical outlet, and then contact the place of purchase or a qualified technician.

DANGER

WARNING

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.

Installation

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 weights approximately 88 kg. The installation should be carried out by two or more

people.

Do not connect the power cord until installation is complete. If the foot switch is depressed by mistake, the sewing machine might start operating and injury could result.

Hold the machine head with both hands when tilting it back or returning it to its original position.

Furthermore, do not apply excessive force when

tilting back the machine head. The sewing machine may become unbalanced and fall down, and serious injury or damage to the sewing machine may 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.

The pneumatic delivery capability should be greater than the requirements for the sewing machine’s total air consumption. Insufficient pneumatic delivery capability may cause problems with correct operation.

The ambient temperature should be within the range of 5℃ to 35℃ 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.

All cords should be secured at least 25 mm away from any moving parts. Furthermore, do not excessively bend the cords or secure them too firmly with staples, otherwise there is the danger that fire or electric shocks could occur.

Install the safety covers to the machine head and motor.

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

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. If the oil and grease get into your eyes or onto your skin, inflammation can result.

Furthermore, do not drink or eat the lubricating oil or

grease. They may cause diarrhea or vomiting.

Keep the oil out of the reach of children.

BAS-311H

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

CAUTION

Sewing

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

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. If the foot switch is depressed by mistake, the sewing machine might start operating and injury could result.

・ When threading the needle ・

When replacing the bobbin and needle

・

When not using the machine and when leaving

the machine unattended

Cleaning

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

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.

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.

Furthermore, do not drink or eat the lubricating oil or grease. They may cause diarrhea or vomiting.

Keep the oil out of the reach of children.

Maintenance and inspection

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 before carrying out the following operations. If the foot switch is depressed by mistake, the sewing machine might start operating and injury could result.

･ Inspection, adjustment and maintenance ･

Replacing consumable parts such as the rotary

hook

Disconnect the air hoses from the air supply and wait for the needle on the pressure gauge to drop to “0” before carrying out inspection, adjustment and repair of any parts which use the pneumatic equipment.

Hold the machine head with both hands when tilting it

back or returning it to its original position.

Furthermore, do not apply excessive force when

tilting back the machine head. The sewing machine

may become unbalanced and fall down, and serious

injury or damage to the sewing machine may result.

If the power switch needs to be left on when carrying

out some adjustment, be extremely careful to observe

all safety precautions.

When replacing parts and installing optional

accessories, be sure to use only genuine Brother

parts.

Brother will not be held responsible for any accidents

or problems resulting from the use of non-genuine

parts.

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.

To prevent accidents and problems, do not modify

the machine yourself.

Brother will not be held responsible for any accidents

or problems resulting from modifications made to the

machine.

BAS-311H

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.

*安全保護装置：

*Safety devices

Devices such as eye guard, finger guard, thread take-up cover, side cover, rear cover, tension release solenoid cover, inne cover, outer cover, fixed cover and gas spring support cover

Be careful not to get your hand caught when tilting back the machine head and returning it to its original position.

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.

Direction of operation

Be careful to avoid injury from moving parts.

Do not hold, otherwise problems with operation or injury may occur.

BAS-311H

Rear cover

Side cover

Tension release solenoid cover

Inner cover L Outer cover Fixed cover

Thread take-up cover

Eye guard

Finger guard

Gas spring support cover

3228B 3029B

Inner cover R

Outer cover Fixed cover

BAS-311H

1. SPECIFICATIONS·································· 1

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

3. FUNCTION SETTINGS ························· 3

3-1. List of special functions when power is

turned on ····················································· 3

3-2. List of advanced functions··························· 5

3-3. Setting memory switches (Advanced)········· 6

3-4. List of memory switches ······························ 7

3-5. Setting the work clamp mode ···················· 23

3-6. Error history checking method··················· 25

3-7. Input checking method ······························ 26

3-8. Output checking method ··························· 29

3-9. Confirming software version······················ 31

3-10. Protection settings··································· 32

4. X AND Y PARALLEL MOVEMENT OF

SEWING PATTERNS ·························· 35

5. USING SD CARD································· 37

5-1. Notes on handling SD cards (commercially

available) ··················································· 37

5-2. Structure of an SD card folder··················· 37

5-3. Preparation for reading and writing data ··· 38

5-4. [ r 1] Reading additional sewing data······ 39

5-5. [ w 2] Writing additional sewing data to

an SD card················································· 40

5-6. [ r 3] Reading memory switch data ········· 41

6. MECHANICAL DESCRIPTIONS········ 49

6-1. Needle bar and thread take-up

mechanisms ·············································· 49

6-2. Lower shaft and shuttle race

mechanisms ·············································· 49

6-3. Work clamp lifter mechanism (Motor-driven

work clamp specifications) ························ 50

6-4. Work clamp lifter mechanism (Pneumatic

work clamp specifications) ························ 51

6-5. Intermittent presser foot lifter

mechanism ················································ 51

6-6. Intermittent presser foot stroke

mechanism ················································ 52

6-7. Feed mechanism······································· 53

6-8. Thread trimmer mechanism ······················ 54

6-9. Tension release mechanism······················ 55

6-10. Thread wiper mechanism························ 55

7. ASSEMBLY ··········································· 56

7-1. Upper shaft mechanism ···························· 56

7-2. Needle bar mechanism ····························· 58

7-3. Intermittent presser foot lifter

mechanism ················································ 60

7-4. Work clamp lifter mechanism (Motor-driven

work clamp specifications) ························ 62

7-5. Work clamp lifter mechanism (pneumatic

work clamp specifications) ························ 65

7-6. Feed mechanism······································· 67

5-7. [ w 4] Writing memory switch data to the

SD card······················································ 42

5-8. [ r 5] Reading program data ···················· 43

5-9. [ w 6] Writing program data to an SD

card ··························································· 44

5-10. [ r 7] Reading sewing machine data····· 45

5-11. [ w 8] Writing sewing machine data to

an SD card ·············································· 46

5-12. [ w 9] Writing error log data and memory

switch log data to an SD card ·················47

5-13. Updating the control program version····· 48

7-7. Work clamp arm mechanism····················· 72

7-8. Feed covers··············································· 73

7-9. Lower shaft mechanism ···························· 74

7-10. Shuttle hook mechanism························· 76

7-11. Thread trimmer mechanism ···················· 77

7-12. Tension release mechanism ··················· 81

7-13. Thread wiper mechanism························ 82

7-14. Auxiliary plate·········································· 83

7-15. Covers····················································· 84

BAS-311H

8. ADJUSTMENT······································ 85

8-1. Checking the machine head switch ···········85

8-2. Standard thread tension·····························86

8-2-1. Upper and lower thread tension·········86

8-3. Thread take-up spring································87

8-4. Arm thread guide R····································87

8-5. Adjusting the needle bar height ·················88

8-6. Adjusting the timing and the driver needle

guard··························································88

8-7. Adjusting the needle clearance··················89

8-8. Adjusting the shuttle race thread guide ·····89

8-9. Rotary hook lubrication amount ·················89

8-10. Adjusting the thread trimmer cam

position ····················································90

8-11. Adjusting the position of the movable

knife ·························································90

8-12. Replacing the movable and fixed

knives·······················································92

8-13. Installing the feed plate····························93

8-14. Adjusting the thread wiper ·······················94

8-15. Presser foot installation position··············94

10. ELECTRIC MECHANISM ··············· 113

10-1. Precautions at the time of adjustment··· 113

10-2. Components inside and outside the

control box and in the operation panel······················································ 114

10-3. Fuse explanation··································· 115

10-4. Description of connectors ····················· 116

10-4-1. Connector positions······················· 116

10-4-2. Symptoms when there are poor

connections···································· 118

10-5. Troubleshooting ···································· 122

10-5-1. Troubleshooting flowchart·············· 122

10-5-2. Problem solution and measures ···· 126

11. LIST OF ERROR CODES ···············141

12. TROUBLESHOOTING ····················148

13. 7-SEGMENT DISPLAY LIST ··········152

8-16. Adjusting the intermittent work clamp······95

8-17. Adjusting the work clamp lift amount·······98

8-18. Adjusting the air pressure (pneumatic

work clamp specifications)·······················98

8-19. Belt tension adjustment ···························99

8-20. Adjusting the tension release amount ···100

8-21. Adjusting the backlash of the lower

shaft gear···············································101

8-22. Adjusting the home position ··················102

8-22-1. Work clamp lift home position ········102

8-22-2. X-Y feed home position ··················105

8-23. Adjusting the motor standard position···108

8-24. Adjusting the needle up stop position····109

8-25. Setting method for standard depression

strokes (Foot switch) ·····························110

9. APPLYING GREASE

(FEED MECHANISM) ························ 111

BAS-311H

1. SPECFICATIONS

Sewing machine Lock stitch pattern tacking sewing machine (with large shuttle hook)

Stitch formation Single needle lock stitch

Max. sewing speed 2,800 sti./min

Max. sewing area (XxY) 150 x 100 mm

Feed mechanism Intermittent feed, pulse motor drive

Stitch length

No. of stitches 500,000-stitch internal memory (*1)

Maximum No. of stitches 20,000 stitches (per program)

No. of sewing data items that can be stored

Work clamp lift method

Work clamp height

Intermittent presser foot lift amount

Intermittent stroke

Motor-driven work clamp specifications: Pulse motor drive method

Pneumatic work clamp specifications: Pneumatic method

Motor-driven work clamp specifications: Integrated-type work clamp

Pneumatic work clamp specifications: Separate-type work clamp

Internal memory: 512 (*1), SD card: 900

Motor-driven work clamp specifications: Max. 25 mm

Pneumatic work clamp specifications: Max. 30 mm

2 − 4.5 mm, 4.5 − 10 mm or 0 (Default setting 3 mm)

0.05 − 12.7 mm

22 mm

3190B

Hook Double-capacity shuttle hook (standard shuttle hook sold separately)

Wiper device Standard equipment

Thread trimmer Standard equipment

Data storage method Internal memory (Flash memory), SD card (*2)

User programs 900

Cycle programs 30

Motor 550 W AC servo motor

Weights

Power source

Air pressure 0.5 MPa 1.8 l/min.

(*1) The number of data items and stitches that can be stored will vary depending on the number of stitches in each

program.

(*2) No guarantees of operation can be given for any media.

(For single-phase 110V and three-phase 380V / 400V, the trans box is required.)

Machine head approx. 88 kg, operation panel approx. 0.4 kg

Control box 9 kg (Differs depending on destination)

Single-phase 110V / 220V / 230V, 3-phase 220V / 380V / 400V

BAS-311H

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.

・ When holding the machine head, do not hold it

by the motor, otherwise it may damage the motor.

・ Do not hold the shaded parts, as they can bend

easily.

2. NOTES ON HANDLING

2516B

3243B

Tilting back the machine head

1. Pack away any tools which are near the table.

2. Secure the foot (A) so that the table will not move, and then pull the arm with both hands to tilt back the machine head.

* While supporting the arm with both hands, gently lower it.

Returning the machine head to the upright position

1. Pack away any tools which are near the table.

2. While supporting the arm with both hands, gently return the machine head to its original position.

3244B

3245B

BAS-311H

3. FUNCTION SETTINGS

3-1. List of special functions when power is turned on

This list shows the key operations for using special functions.

3055B

(2)

3193B

Data initialization function

Refer to the CD Instruction Manual.

Memory switch setting mode (Advanced)

Refer to “3-3. Setting memory switches (Advanced)”.

Input check function

Refer to “3-7. Input checking method”.

Output check function

Refer to “3-8. Output checking method”.

2595B

2596B

2597B

2598B

BAS-311H

Software version display function

Refer to “3-9. Confirming software version”.

Error log display function 2600B

Refer to “3-6. Error history checking method”.

Home position adjusting mode

Refer to “8-22. Adjusting the home position”.

Treadle position adjustment mode 2602B

Refer to “ 8 -25. Setting method for standard

depression strokes (Foot switch)”.

2599B

2601B

Motor standard position adjustment mode

Refer to “8-23. Adjusting the motor standard position”.

Needle up stop position adjustment mode 3194B

Refer to “8-24. Adjusting the needle up stop position”.

2603B

3. FUNCTION SETTINGS

Protect setting mode 2605B

Refer to “3-10. Protection settings”.

Version update 2606B

Refer to “5-13. Updating the control program version”.

BAS-311H

3. FUNCTION SETTINGS

3-2. List of advanced functions

This list shows the key operations for using advanced functions.

Memory switch setting mode (Standard)

Refer to the CD Instruction Manual.

Lower thread counter setting mode

Refer to the CD Instruction Manual.

Production counter setting mode

Refer to the CD Instruction Manual.

Program mode

Refer to the CD Instruction Manual.

2608B

2609B

2610B

2611B

Cycle program setting mode 2612B

Refer to the CD Instruction Manual.

Parallel movement mode

Refer to “4. X and Y parallel movement of sewing

SD data read/write mode

Refer to “5-3. Preparation for reading and writing data”.

3195B

2614B

patterns”.

2615B

BAS-311H

3-3. Setting memory switches (Advanced)

Change the mode to memory switch setting mode.

ll indicators switch off

While pressing the TEST key and the SELECT key, turn on the power switch.

・ The memory switch number will be displayed in the

Select the memory switch that you would like

to change the setting for.

Press the △ or ▽ key to select the memory switch number.

3. FUNCTION SETTINGS

PROGRAM No. display and the setting value for that number will be displayed in the menu display.

3196B 2616B

If you would like to display only the numbers of memory switches that have been changed from default settings

Change the memory switch setting.

Apply the changed setting.

Repeat steps 2 to 4 above to set each memory switch.

Exit setting mode

TEST indicator switches off

2414B

While pressing the SELECT key, press the △ or ▽ key (1).

･ The numbers of memory switches that have been

changed from default settings will appear in order.

Press the ▲ or ▼ key to change the setting value.

･ The flashing display means that the setting has not yet

been applied.

･

You can make the initial setting appear in the display by pressing the RESET key.

Press the ENTER key.

The menu display will change from flashing to

･

illuminated, has been applied.

･

If you press the △ or ▽ key (1) or the TEST key without pressing the ENTER key, you can cancel the parameter changes.

Press the TEST key.

and this means that the parameter setting

･ The changes will be memorized and the sewing

machine will switch to home position detection standby.

3210B

2423B

3197B

2404B

BAS-311H

3. FUNCTION SETTINGS

3-4. List of memory switches

Initial value

OFF

Lo4

OFF None

ON None

Specification

limits

2 None

Pneumatic

0 None

Solenoid

None

Setting

range

ON/OFF

No.

001 0-2

002 0-2

003 0-2

100 ON/OFF

200 ON/OFF

300 ON/OFF

400 ON/OFF

402 ON/OFF

403 0-1

405

Settings Setting details

Work clamp lift timing after sewing is completed

Work clamp is not raised automatically.

Work clamp is raised at the final stitch position.

* Disabled when memory switch No. 71 is set to “2”, or when

Work clamp lowering sequence for separate work clamp (Pneumatic work clamp specifications only)

Work clamp lowering operation (Motor-driven work clamp specifications only)

Slow start method

OFF

Single-stitch test feed

OFF

Production counter display

OFF Lower thread counter display

ON Production counter display

Sewing condition detail settings

OFF Parameters which are common to all programs are used.

ON Parameters can be set separately for each program.

Unit display for pattern zoom ratio

OFF Displayed as %

ON Displayed as mm

Split mode selection

0 Continuous split mode

1 Single split mode

Cycle program No. (C01 to C30) display

OFF Disabled (Skipped)

ON Enabled

memory switch No. 72 is set to “2”.

Work clamp is raised after moving to the home position.

* Disabled when memory switch No. 71 is set to "2", or when

memory switch No. 72 is set to "2".

Left and right work clamps are lowered at the same time. Work clamp is lowered in the order left → right. Work clamp is lowered in the order right → left.

Analog lowering: Work clamp is lowered in direct proportion to the pedal depression amount, and sewing starts when the pedal is fully depressed.

* This operation is only possible for foot switch specifications; for

two-pedal foot switch specifications, operation is the same as for a 2-step work clamp.

1-step work clamp: Work clamp is lowered when pedal is depressed to the 1st step, and sewing starts when pedal is depressed to the 2nd step.

2-step work clamp: Work clamp is lowered to intermediate height when pedal is depressed to the 1st step, and work clamp is fully lowered and sewing starts when the pedal is depressed to the 2nd step.

The sewing speed for the first 5 stitches will be in accordance with the setting for memory switch Nos. 151 to 155.

The sewing speed for the first 5 stitches can be selected from the nine slow start patterns “Lo1” to “Lo9”. (Refer to the CD Instruction Manual.)

Test feed starts when the foot switch (start switch) is depressed, and it continues automatically until the final stitch.

Test feed starts when the foot switch (start switch) is depressed, and it moves forward by one stitch each time the switch is depressed. In addition, when the TEST indicator is flashing, test feed will move forward one stitch at a time when the machine pulley is turned by hand.

BAS-311H

3. FUNCTION SETTINGS

No.

406

407

408

409

410

Setting

range

0-2

Settings Settings details

F key specifications

F keys become direct selection keys for sewing program numbers (101 to 104).

F keys become direct selection keys for cycle program numbers (C01 to C04).

* Selection is possible when memory switch No. 400 is set to “ON”.

F keys become shortcut keys for program numbers which have been assigned to the keys.

Assignment number to F1 key

100-999, C01-C30

Assignment number to F2 key

100-999, C01-C30

Assignment number to F3 key

100-999, C01-C30

Assignment number to F4 key

100-999, C01-C30

F1 … Setting number for memory switch No. 407 F2 … Setting number for memory switch No. 408 F3 … Setting number for memory switch No. 409 F4 … Setting number for memory switch No. 410

Initial

value

101 None

102 None

103 None

104 None

Specification

limits

0 None

*1: If there are no valid sewing programs when memory switch No. 405 is set to "OFF", only the standard program numbers

are displayed. If it is set to "ON" when no programs have been registered, nothing is displayed (the display is skipped).

*2: If an F key which does not have a program registered to it is pressed, the key will be invalid. (The buzzer will sound

twice.)

BAS-311H

3. FUNCTION SETTINGS

Work clamp settings

No.

051 ON/OFF

052 ON/OFF

053 0-999

054 0-2

055 0-2

056 ON/OFF

057 ON/OFF

059 0-1

060 0-3000

Setting

range

Settings Settings details

Work clamp operation before home position detection

OFF

Work clamp operation during split programs

OFF

Time from intermittent presser foot lifting until feed mechanism starts moving

Intermittent presser foot drop timing

Work clamp signal valve special output for pneumatic-type work clamp

Thread winding operation before home position is detected

OFF

Work clamp operation when feed moves to sewing start position after home position is detected

OFF

Operation settings for heavy-weight materials

Time after the work clamp drops until the shaft starts rotating.

Work clamp cannot be raised or lowered before home position is detected.

Work clamp can be raised and lowered before home position is detected.

Work clamp lifts automatically when sewing pauses due to a split program.

Work clamp does not lift automatically when sewing pauses due to a split program.

Units (ms), Increments of 1

Presser foot drops when the work clamp switch is depressed, but it does not drop at the retract position.

Presser foot drops when the work clamp switch is depressed.

Presser foot drops at the sewing start, regardless of the work clamp switch operation.

Disabled Valve output is reversed for pneumatic-type work clamp

specifications. (Connect the air tubes in reverse so that the work clamp can lift when the power is turned off.)

Reverse valve output for pneumatic specifications is output simultaneously for 2-position valve specifications.

(Right work clamp reverse = Option output No. 4: Left work clamp reverse = Option output No. 5)

Thread winding cannot be carried out before home position is detected.

Thread winding can be carried out before home position is detected.

Work clamp stays dropped after home position is detected. Work clamp lifts when work clamp switch is depressed (when depressed backward for foot switch).

Work clamp lifts automatically after home position is detected.

Standard

When using a heavy work clamp and feed plate (Maximum sewing speed is limited to 2,200 sti./min.)

Units (ms), Increments of 10

Initial

value

ON None

OFF None

100 None

OFF None

Specification

limits

0 None

Pneumatic

None

Pneumatic

0 None

*1: If memory switch No. 051 is set to "OFF", thread winding is not possible before home position detection is carried out.

Thread winding is not possible during intermittent lifting and before work clamp home position detection is carried out (such as when the work clamp switch has not been depressed at all after the power was turned on), even when memory switch No. 056 is set to "ON".

BAS-311H

Pedal type and work clamp operation settings

3. FUNCTION SETTINGS

No.

070 1-3

071 1-3

072 1-7

Setting

range

Settings Settings details

Pedal specifications (Not reset during initialization)

Foot switch

Work clamp operation when foot switch is set (Can be set when memory switch No. 70 is set to "1". Not displayed at other times.) (Not reset during initialization)

1 [Standard]

(Memory switch No. 71 can be set, and memory switch Nos. 72 and 73 are not displayed.)

Two-pedal foot switch (Memory switch No. 72 can be set, and memory switch Nos. 71 and 73 are not displayed.)

Three-pedal foot switch (Memory switch No. 73 can be set, and memory switch Nos. 71 and 72 are not displayed.)

[No automatic work clamp lifting] Work clamp lifts when pedal is depressed backward.

[2-step work clamp using two presses] When work clamp switch is depressed: (1st step) Drop → (2nd step) Drop (skipped for single step work clamp) → Start When depressed backward = Both work clamps lift

* Operates as a 2-step work clamp when memory switch No. 003 is

set to "0".

Work clamp operation when two-pedal foot switch is set (Can be set when memory switch No. 70 is set to "2". Not displayed at other times.) (Not reset during initialization)

[Standard] Work clamp lifts automatically and drops when the work clamp

switch is depressed. The left and right order can be changed using memory switch No.

002.

[No automatic work clamp lifting] Work clamp lifts while work clamp switch is being depressed.

[Left/right work clamp → intermittent presser foot 2-step work clamp] When work clamp switch is depressed to the 1st step, both the left and right work clamps are lowered, and when it is depressed to the 2nd step, the intermittent presser foot is lowered. Lifting is in the same order.

[Left and right alternating 2-step work clamp] 2-step operation, with left and right order switching for each item sewn. Starts from right.

[Forward/reverse pedal] When the start switch is depressed, the work clamp drops and the sewing machine starts in that order with forward control, and when the work clamp switch is depressed, the sewing machine reverses and the work clamp lifts.

* The left and right order can be changed using memory switch No.

002.

[2-step work clamp using two presses] When the work clamp switch is depressed, the left work clamp drops

→ Right work clamp drops → Both work clamps lift in that order

* The left and right order can be changed using memory switch No.

002.

[Work clamp drops and sewing starts only when work clamp switch is depressed]

Work clamp drops and sewing starts only by depressing the work clamp switch.

* Starting sewing is also possible by using the start switch.

Initial value

(Solenoid)

(Pneumatic)

Specification

limits

None

Solenoid

None

Pneumatic

None

BAS-311H

3. FUNCTION SETTINGS

No.

Setting

073 1-3

range

Settings Settings details

Work clamp operation when three-pedal foot switch is set (Can be set when memory switch No. 70 is set to "3". Not displayed at other times.) (Not reset during initialization)

[Standard] Pneumatic method: The left pedal raises and lowers the left work clamp, and the right pedal (center) raises and lowers the right work clamp. The start switch (right) starts the sewing machine. Motor-driven method (Solenoid) : 1st step when left pedal is depressed: 2nd step when right (center) pedal is depressed (invalid for single step work clamp) The start switch (right) starts the sewing machine.

[Independent home detection] The right pedal (center) is used exclusively for detecting the home position. The left pedal raises and lowers the left and right work clamps, and the start pedal (right) starts the sewing machine. The start switch (right) starts the sewing machine.

[Independent home detection] The right pedal (center) is used exclusively for detecting the home position. The left work clamp only is raised and lowered when the left pedal is depressed. The start switch (right) lowers the right work clamp and starts the sewing machine.

Initial

value

Specification

limits

None

Pneumatic

BAS-311H

Upper shaft motor settings

3. FUNCTION SETTINGS

Setting

range

200-2800

1200-

2800

No.

150 ON/OFF

151

152

153

154

155

156 200-2800

157 200-2800

158 200-2800

159 200-2000

161 ON/OFF

162 ON/OFF

163

164 ON/OFF

Settings Settings details

Highest needle position stop (When set to "ON", memory switch Nos. 165 and 166 can be set.)

OFF

When the upper shaft motor stops, the motor operation reverse to return the needle bar close to its highest position.

* When the motor operates in reverse to raise the needle, the thread

1st stitch sewing speed at the sewing start

2nd stitch sewing speed at the sewing start

3rd stitch sewing speed at the sewing start

4th stitch sewing speed at the sewing start

5th stitch sewing speed at the sewing start

Sewing speed for 5th stitch before the sewing end

Sewing speed for 4th stitch before the sewing end

Sewing speed for 3rd stitch before the sewing end

Sewing speed for 2nd stitch before the sewing end

Piercing force boosting operation

OFF

Regulation of sewing speed changes due to sewing pitch changes

OFF

The maximum value is limited when the sewing speed is set using the menu. It is applied to the panel speed display. The maximum values are limited for all speed setting values which have been programmed.

Thread trimming disabled

OFF

take-up will stop at a position which is lower than its normal stopping position. As a result, the thread take-up will rise slightly at the sewing start, and this may result in the thread pulling out under certain conditions.

Units ( sti./min ), Increments of 100

Disabled

Enabled (Piercing force boosting operations are carried out when the sewing machine motor is locked.)

Sewing speed varies depending on sewing pitch of the sewing data.

Speed is fixed at the minimum sewing speed for the maximum pitch of the sewing data. (Set to “ON” if there may be a problem with sewing speed changes as a result of pitch changes.)

Units (sti./min), Increments of 100

Thread trimming is carried out in accordance with the sewing data.

Thread trimming is not carried out.

Initial value

OFF

400

800

1200

2800

1200

OFF

2800

OFF

Specification

limits

None

BAS-311H

3. FUNCTION SETTINGS

No.

165 -20-20

166 10-500

167 ON/OFF

168 0-120

169 30-89

170 0-2800

171 ON/OFF

Setting

range

Settings Settings details

Stop position settings at highest needle position stop (Can only be set when memory switch No. 150 is set to "ON", not displayed at other times.)

Delay time until reverse operation starts during highest needle position stop operation (Can only be set when memory switch No. 150 is set to "ON", not displayed at other times.)

Servo lock enabled or disabled setting (When set to "ON", memory switch Nos. 168 and 169 can be set.)

OFF

Servo lock timer setting (Can only be set when memory switch No. 167 is set to "ON", not displayed at other times. If it is set to “0”, no timer operation.）

Servo lock release rotation angle (Can only be set when memory switch No. 167 is set to "ON", not displayed at other times.)

Lowers the allowable speed for the sewing pitch by the amount set.

Automatic needle lifter operation

OFF

Needle bar height increases for values in the negative direction. Units (degree), Increments of 1

Units (ms), Increments of 10

Disable

Enable

Units (s), Increments of 1

Units (degree), Increments of 1

Overall speed reduction (sti./min) Increments of 100 However, the minimum allowable speed value is 400 sti./min.

Does not operate automatically, and a needle up stop position error is generated. (When memory switch No. 655 is set to "ON", the sensor can also be ignored.)

If the needle bar is not at the needle up stop position during feeding or work clamp home position detection, it moves automatically to the needle up stop position.

Initial value

150 None

OFF None

45 None

ON None

Specification

limits

0 None

*1: Only enabled when memory switch No. 100 is set to "OFF".

BAS-311H

Feed settings

3. FUNCTION SETTINGS

No.

250 ON/OFF

251 1-5

252

253 0-2

254 0-3

255 ON/OFF

260 -80-80

Setting

range

ON/OFF

Settings Settings details

Mechanism home position return when sewing is finished

OFF When sewing is finished, the feed returns to the start position.

The speed of the feeding operation

High-speed test feed method

OFF

ON High-speed feeding starts at the same time test feeding starts.

Moving method to the start point (Not reset during initialization)

Movement path from mechanism home position to start position (Not reset

during initialization)

Y-feed full stroke movement operation

OFF

Changes the overall feed timing (-80 Early ←→80: Late)

When sewing is finished, the feed moves via the machine home position to the start position.

1 Slow 100 mm/s

2 200 mm/s

3 300 mm/s

4 400 mm/s

5 Fast 500 mm/s

Normally slow, but becomes faster when the foot switch is depressed to the 1st step. (For a two-pedal foot switch, when the work clamp switch is depressed.)

Depress the foot switch to the 2nd step while the program number is

flashing. (For a two-pedal foot switch, depress the start switch.)

When the RESET key is pressed while the program number is flashing:

When work clamp is lowered before moving to sewing start position → Moves to sewing start position When work clamp is lowered after moving to sewing start position → Ignored When work clamp is raised before moving to sewing start position → Work clamp is lowered + Moves to sewing start position When work clamp is raised after moving to sewing start position → Ignored

When the expansion input switch (EXIN3) is pressed while the program number is flashing:

When work clamp is lowered before moving to sewing start position → Moves to sewing start position When work clamp is lowered after moving to sewing start position → Ignored When work clamp is raised before moving to sewing start position → Ignored When work clamp is raised after moving to sewing start position → Ignored

No route specified

Moves in the order X→Y when moving to the home position, and in the order Y→X when moving to the sewing start position.

Moves in the order Y→X when moving to the home position, and in the order X→Y when moving to the sewing start position.

Operates while avoiding the center of the clamped area.

Y-feed full stroke movement operation does not occur when home position detection is carried out immediately after the power is turned on.

Y-feed full stroke movement operation occurs when home position detection is carried out immediately after the power is turned on.

Units (degree), Increments of 1

Initial value

OFF None

ON None

Specification

limits

3 None

0 None

*1: Only enabled when memory switch No. 200 is set to "OFF". *2: The start switch is disabled. Cannot be set when memory switch No.650 is set to "2".

BAS-311H

3. FUNCTION SETTINGS

No.

Setting

range

261 -80-80

262 -80-80

263 -80-80

264 -80-80

265 -80-80

266 -80-80

267 0-99

268 0-3

269 0-2

270 0-3

Settings Setting details

Changes the feed timing for the 1st stitch at the sewing start (-80 Early ←→80: Late)

Changes the feed timing for the 2nd stitch at the sewing start (-80 Early←→80: Late)

Changes the feed timing for the 3rd stitch at the sewing start (-80 Early ←→80: Late)

Changes the feed timing for the 3rd stitch before the sewing end (-80 Early←→80: Late)

Changes the feed timing for the 2nd stitch before the sewing end (-80 Early ←→80: Late)

Changes the feed timing for the 1st stitch before the sewing end (-80 Early ←→80: Late)

When the overall feed timing has been changed using memory switch No. 260, this specifies the effective number of stitches.

1-99

Changes the overall feed timing reference

Changes the feed timing reference for the first three stitches at the sewing start

Home position detection operation when the program is changed

Units (degree), Increments of 1

No limit

When the specified number of stitches is exceeded, the feed timing returns to the standard timing.

[Feed start reference] Makes the timing uniform at the start of feed.

[Needle up reference] Changes the timing at the start of feed so that the needle zigzagging is even.

[Feed end reference] Makes the timing uniform at the end of feed.

[Linked to speed] Feed timing is uniform even if the sewing speed changes.

[Feed start reference] Makes the timing uniform at the start of feed.

[Needle up reference] Changes the timing at the start of feed so that the needle zigzagging is even.

[Feed end reference] Makes the timing uniform at the end of feed.

Home position detection is not carried out. Moves to sewing start position when start switch is depressed, and then stops.

Home position detection is not carried out. Moves via the center of the sewing area to the sewing start position when start switch is depressed, and then stops.

Home position detection is carried out. Moves to sewing start position after home position detection when start switch is depressed, and then stops.

Home position detection is not carried out. If the program has changed, moves to the next sewing start position and then stops.

Initial value

Specification

limits

0 None

1 None

0 None

BAS-311H

Panel operation settings

3. FUNCTION SETTINGS

No.

352 0-2

353 ON/OFF

354 0-9

355 ON/OFF

Setting

range

Settings Setting details

Counting method for production counter and lower thread counter

Counted for each item of sewing data.

Counted for each thread trimming operation.

Counted when sewing data ends or when split stops.

Counter timing for lower thread counter

OFF

Switching program numbers using an external switch

1-9

Switches split numbers using an external switch

OFF

Counted at the end of sewing.

Counted at the start of sewing.

Disable

Program number is switched by means of the 5 bits of option input (EXIN6 − EXIN10).

* Applicable numbers are: Setting number = 3rd digit, last two digits

can be 1 − 31.

Disable

Split number is switched by means of the 5 bits of option input (EXIN6 − EXIN10).

* Applicable numbers are 1 − 31 (only enabled for independent split

mode).

Initial value

OFF None

Specification

limits

0 None

BAS-311H

3. FUNCTION SETTINGS

Program settings

No.

460 0-150

461 0-100

462 0-8

465 1-3

468 ON/OFF

Setting

range

Settings Setting details

X-sewing area setting (Not reset during initialization)

Units (mm), Increments of 1

Y-sewing area setting (Not reset during initialization)

Units (mm), Increments of 1

Enlargement/reduction reference point

Zoom reference point is the center of the sewing frame.

Zoom reference point is the sewing start position.

Zoom reference point is the center of the sewing pattern.

Front of pattern center

Back of pattern center

Back-left corner of sewing area

Front-left corner of sewing area

Back-right corner of sewing area

Front-right corner of sewing area

Movement amount is Initialized when program number or

enlargement/reduction ratio is changed and when power is turned off.

Movement amount is Initialized when program number or

enlargement/reduction ratio is changed but not when power is turned off.

Set separately for each program.

* Disabled when memory switch No. 400 is set to "OFF".

(Parallel movement mode cannot be used.)

The parallel movement amount is stored even when the power is turned off.

* Select "1" or "2" when memory switch No. 400 is set to "OFF".

Retract point switching at parallel movement point

OFF

Disable

The position moved to by parallel movement is recorded as the retract point.

Initial

value

150 None

100 None

OFF None

Specification

limits

0 None

1 None

BAS-311H

Device settings

3. FUNCTION SETTINGS

No.

550 0-2000

551 0-3

552 -80-8

554 ON/OFF

555 ON/OFF

556 0-3

557 0-2

558 ON/OFF

559 ON/OFF

560 0-3

Setting

range

Settings Setting details

Needle cooler device

Disable

Needle cooler device is used. Continuous output time after sewing machine stops (ms) Increments of 100

Not released

Released during the specified number of stitches

-3: Medium-weight material specifications

-5:

Heavy-weight material specifications

-7: Seatbelt specifications

Disable

Fiber-type thread breakage sensor is used.

5 stitches at sewing start, 3 stitches while sewing

10 stitches at sewing start, 3 stitches while sewing

Disable

Inner clamping device is used. (Retract operation is carried out at the sewing end to prevent interference with the needle.)

Inner clamping device is used. (No retract operation at the sewing end)

Inner clamping device operates for 1/4 of the sewing pattern and returns for the other 3/4. (No retract operation)

Disable

Standard wiper device is used.

Pneumatic-type wiper device is used. (Option output No. 2)

Disable

Enabled (Option input No. 13 [AIRSW])

Disable

Option output No. 9 : Output ON while operating Option output No. 10: ON during lower thread conversion and during

test mode

Option output No. 11: ON when error is generated

100-

2000

Upper thread tension release at the sewing start

1-3

Tension release timing during thread trimming

-24

Thread breakage sensor

OFF

Thread breakage sensor detection sensitivity

OFF

Inner clamping device (Option output No.13) (Not reset during initialization)

Wiper device

External error monitoring input

OFF

Operating indicator output

OFF

Automatic ejector (Option output No. 3 output: Option input No. 1 = right sensor: Input No. 2 = left sensor)

* When this device is used, memory switch No. 002 should be set to "0".

Disable

Standard automatic ejector operation occurs.

Sewing starts when cassette sensor is ON.

Start switch is enabled even if cassette sensor is OFF.

Specification

limits

None

Pneumatic

Initial value

(-3,-5)

-24

(-7)

OFF None

OFF

BAS-311H

3. FUNCTION SETTINGS

No.

561 0-999

564 ON/OFF

565 0-2

567 ON/OFF

569 0-3

570 1-99

571 1-99

572 1-99

Setting

range

Settings Setting details

Time from sensor turning on to sewing start when memory switch No. 560 is set to "2"

2-step tension

OFF

Tension release force setting

Upper thread tension during test feed

OFF

Detection timing for lower thread sensor (Not reset during initialization)

Wait time after lower thread detection is complete

Wait time for lower thread detection response

Output time for lower thread detection operation command signal

Units (ms), Increments of 1

Disable

2-step tension is used.

Standard (Tension release is open at the sewing end.)

Increases the force. (Tension release is closed at the sewing end. When using threading mode, it will be closed in approximately 5 minutes.)

Tension release force is set to the maximum. (Tension release is closed at the sewing end. When using threading mode, it will be closed in approximately 1 minute.)

Upper thread tension not applied.

Upper thread tension applied.

0: Sensor not used = 1: Before = 2: After = 3: Before and after

Units (×10 ms), Increments of 1

Initial value

100

OFF None

(-3,-5)

(-7)

OFF None

30 None

50 None

Specification

limits

Pneumatic

0 None

None

BAS-311H

Error processing settings

3. FUNCTION SETTINGS

No.

650 0-2

651 0-2

652 ON/OFF

653 ON/OFF

655 ON/OFF

656 ON/OFF

657 0-30

Setting

range

Settings Setting details

Error release method when operation has stopped (Not reset during initialization)

0 Press the RESET key on the operation panel to release errors.

1 Press the RESET key or the STOP key to release errors.

Press the RESET key or input a signal from the expansion input

Needle up stop when operation is paused

Thread trimming operation prevention when sewing is paused

OFF Thread trimming is carried out when the pause is canceled.

ON Thread trimming is not carried out when the pause is canceled.

Resuming sewing after sewing is paused

OFF STOP switch → RESET key →▼ key → Sewing starts

ON STOP switch → RESET key → Sewing starts

Disables needle up stop position monitoring sensor

OFF Sensor enabled (“UP” will be displayed)

ON Sensor disabled

Home position return when sewing is paused

OFF

Time from error occurring to buzzer stopping

0 Buzzer does not stop.

2-30 Units (s), Increments of 2

switch (EXIN3) to release errors. Cannot be set when memory switch No. 253 is set to "2".

Stops at the needle down position when sewing is interrupted by the STOP key.

Stops at the needle up position when sewing is interrupted by the STOP key.

Stops at the needle up position after thread trimming when sewing is interrupted by the STOP key. (Thread trimming cannot be set when memory switch No. 652 is set to "0".)

Mechanism moves to home position and then moves to sewing start position.

Mechanism steps back to the sewing start position along the sewing path without moving to the home position.

Initial value

OFF None

OFF

(-3,-5)

ON (-7)

OFF None

Specification

limits

0 None

None

0 None

BAS-311H

3. FUNCTION SETTINGS

Maintenance settings

No.

750 0-3

751 0-3000

752 0-99

Setting

range

Settings Setting details

Run-in operation mode

Run-in operation stop time

Sewing machine ID code (Sewing data specified on SD card)

Disable

Continuous operation (one work clamp up/down operation per cycle) occurs while the start switch remains on. Not raised and lowered when memory switch No. 001 is set to "OFF".

Continuous operation (two work clamp up/down operations per cycle) occurs while the start switch remains on. Not raised and lowered when memory switch No. 001 is set to "OFF".

Continuous operation (three work clamp up/down operations per cycle) occurs while the start switch remains on. Not raised and lowered when memory switch No. 001 is set to "OFF".

Units (ms), Increments of 10

Folder specified

Initial value

200 None

Specification

limits

0 None

BAS-311H

+ 132 hidden pages

Brother BAS-311H User Manual

SAFETY INSTRUCTIONS

[1] Safety indications and their meanings

[2] Notes on safety

[3] Warning labels

CONTENTS

1. SPECFICATIONS

2. NOTES ON HANDLING

3. FUNCTION SETTINGS

3-1. List of special functions when power is turned on

3-2. List of advanced functions

3-3. Setting memory switches (Advanced)

3-4. List of memory switches