how to replace rotary switch with …tashima.cl/pdf/tajima/color change rotary sw to absolute...

Ref. No. TTD-2000-1007

November, 2000

HOW TO REPLACEROTARY SWITCH

WITHABSOLUTE ENCODER

(2000.11)

1

FOREWORD

It has been informed you in TTI-2554 and 2554-1 that the production of Rotary switch, used for the D Series and

TLFDII Series as Needle position detector for a long time, has been discontinued and that an Absolute encoder

has been applied instead as the Needle position detecting part for the machines, manufactured in October 2000

or later.

We have a certain amount of Rotary switches for the maintenance parts in stock, however, continuous part

supply will not be available due to the discontinuation of the part production.

Therefore, you are requested to replace Rotary switch with Absolute encoder when you need to repair customer-

installed machines.

This document describes the instructions how to mount Absolute encoder and how to conduct wiring.

We will be pleased if it is helpful to you for reference when you replace parts or repair machines.

CONTENTS

Page

A. Applicable parts and necessary parts

1. Applicable models ……………………………………………………….. 2

2. Necessary parts for replacement ………………………………………... 2

B. How to mount Absolute encoder

1. How to position Change cam …………………………………………... 4

2. How to change the position of Color change motor ……………………... 5

3. How to remove Rotary switch and how to mount Absolute encoder .… 5

4. How to connect Harness and how to mount Absolute encoder to Color

change box ……………………………………………..………………..7

5. How to adjust needle position display position ………………………...… 10

C. Outline and check of Electrical parts

1. How to measure various types of signals ……………………………….. 11

2. Illustration of harness routing channel ………………….……………...… 12

3. Input/output Diagram ……………………………………………..……… 14

2

A. Applicable models and necessary parts

1. Applicable models

Model classification Models

S Series TMEF-S, TME-S, TME-SCH Series TMEF-H, TMEF-HC, TME-H, TME-HCTMEG Series (Type I to V) TMEG, TMEG-X, TMEG-XC, TMEG-VD Series (Type I to III) TMFD, TMFD-C, TME-D, TME-DCLaser-cut embroidery machine TLFDII

2. Necessary parts for replacement

Replacement is available, using the necessary parts for mounting Absolute encoder and Harness, suited for

embroidery machine model, in a set.

(1) The parts, used for all models in common:

Ref No. Part Name Part No. Remark

1 Absolute encoder ED7103000000 Type No.: MAS-20-16G-C

2 Encoder base MS0419000000

3 Coupling BPUJ66000000

4 Base stud MS0420000000

5 Connecting pin TTZ-MS4180 Countermeasure partfor customer-installed machine

6 Truss head screw SS0103060SD0 M3*6

7 Hexagon sockethead cap screw SS6205100TN0 M5*10

8 Plain washer WSP05A008SC0 M5

3

(2) Necessary parts, depending on the machine model:

Model Harness name Part No. Remark

S series Type S Needle positionsignal harness

FS760000****For the models, using Photo-interrupter assembly(MS-7103-00)

H series Type H Needle positionsignal harness FH760600**** For the models, using Photo-

interrupter (EG7102000000)

Fixed typeTensionbase

TMEG Seriesup to type III

Needle position signalharness 2

EG762800**** For the models, using 6-Joint11card

H Series,TMEGIV andsubsequent types,D series (excluding15-needle models),TLFDII

Needle position signalharness 1 ED764401****

For the models, using TC Joint3card or TC Joint4 cardIndividual

Tensionbase

D Series15-needlemodels

Needle position signalharness 1 ED7644A1**** For the models, using TC Joint5

card

4

B. How to mount Absolute encoderThis document is not only focused on the adjusting procedure and instructions how to modify Needle position

detector from Rotary switch to Absolute encoder, but also illustrates the instructions how to adjust the currently

mass-produced models, equipped with Absolute encoder from the very beginning of shipment.

This chapter regards the second needle as the reference needle position when mounting Absolute encoder in

order to facilitate the procedure to fix screws. If you find color change operation unstable or other inconvenience

after mounting it, please shift the reference needle position to the needle position in the middle of Needle bar

case (for example, the 6th or 7th needle for 12-needle models) and remake adjustment.

1. How to position change cam

(1) Change the color manually to the second needle and turn OFF main power supply.

(2) Remove the Front cover of Color change system.

(3) Rotate the part A with a spanner etc. as illustrated below. Change cam also rotates and the part B moves to

the right or left along the Spiral groove. Spiral groove has a linear section, where B does not move even when

A rotates. Stop A at the position around the center of the linear section with the second needle selected.

(4) Check whether the second needle and the center of needle hole align on the same line or not.

[Note]Conduct alignment in the same way,

irrespective of the type of Colorchange system.

Needle plate

Align the secondneedle correctly.

Slide boss

Spiral groove

Change cam

Cam shaft

B

A

5

(5) Check whether the detecting plate of 1-turn switch collar is positioned at the center of detecting part of 1-turn

detector (Photo-interrupter).

If the detecting plate is not correctly positioned, loosen Fixing screw of 1-turn switch collar and adjust the position.

2. How to change the position of Color change motor

If the harness of Color change motor is positioned at the top right corner (when viewed from the machine right

side), rotate only Color change motor only by 90 degrees without rotating Gear box. (excluding D Series,15-

needle models)

3. How to remove Rotary switch and to mount Absolute encoder1) Loosen Rotary switch pin (the shaft to mount Rotary switch) or Hexagon socket head set screw of Knurled

screw and remove Rotary switch. Then remove Rotary switch stay.

Color changemotor

Rotate by 90degrees

For models up to

12 needles

For 15-needlemodels

Rotary switch

Rotary switch

stay

Hexagon socket headset screw (M3X3L)


Rotary switch pin

Knurledscrew

Detecting part of1-turn detector

1-turn switch collarDetectingplate

6

(2) Mount Base stud to the position, where Rotary switch stay was positioned.

(3) Mount Coupling to the shaft of Absolute encoder with the measurements, illustrated below:

(4) Mount Connecting pin with the following measurements.

Note) This operation is only for customer-installed machines to be modified to Absolute encoder specification.

(5) Mount Encoder base to Absolute encoder.

Fix Truss headscrews (M3X6L)in 3 places.

Marking line

Absolute encoder

Marking lineCoupling

Coupling

Fix Hexagon socket headset screws (M3X4L) in 2places near to Absoluteencoder.

About 2mm

Mount coupling

About 2mm

Coupling

Connectingpin

Fix Hexagon socket head set

screws (M3X4L) in 2 places

near to Connecting pin.

30 degrees

Encoder base

Absolute encoder

7

4. How to connect Harness and to mount Absolute encoder to Color change box

Fix Absolute encoder, connected with harness, to Color change box.

(1) For bridge type machines

1) Models with up to 12 needles

Cap screw M5X10Land M5 Plain washer

Change Box

Mounting status for the model, equipped with Absolute encoderfrom the very beginning of shipment

Needle positionsignal Harness 1

Detecting pin

About 1mm

Needle position signal harness 1,Type S Needle position signal harness,Type H Needle position signal harness,or Needle position signal harness 2

Connectingpin

Connector(to be accommodatedinside Square pipe)

Absolute encoder

Absolute encoder

Color change box

Absolute encoder

Connector(to be accommodatedinside Square pipe)

Mounting status for the customer-installed machines,modified to Absolute encoder specification

Measurements formounting

Color change motor

Hexagon socket headcap screw (M5X10)

Check if the Coupling isnot twisted and rotates

smoothly when thescrew is tightened.

Plain washer (M5)




Plain washer(M5)

8

2) For D Series, 15-needle models

Needle position signalharness (for 15-needle models)

Connector(to be accommodated inside

Square pipe)

Knurled screw

Connectingpin

Coupling

Absolute encoder

Encoder base

Base stud(for 15-needle models)




Plain washer (M5)

9

(2) For Arm type machines:

Color change boxCheck if the Coupling isnot twisted and rotates


About 1mm

Absolute encoder

Needle position signal harness 1,Needle position signal harness 1 (for 15 needles)Type S Needle position signal harness,Type H Needle position signal harnessorNeedle position signal harness 2

Fix Connector andHarness to Base studwith Harness bundler.

Color change box

Needle position signal harness 1,Type S Needle position signal harness,orType H Needle position signal harness

Mounting status for the model, equipped with Absolute encoderfrom the very beginning of shipment

Mounting status for the customer-installed machines,modified to Absolute encoder specification

Measurementsfor mounting

Cap screw M5X10L andM5 Plain washer

Absolute encoder

Color changemotor



Absolute encoder

To be fixed on Absolute encoderwith a Harness bundler

Connector

To be fixed on Absolute encoderwith a Harness bundler


Plain washer (M5)

Fix Connector andHarness to Base stud

with a Harness bundler.

Connector


Plain washer (M5)

10

5. How to adjust needle position display position

(1) If there is a marking line on 1-turn switch collar, rotate the shaft, located at the side of Color change system,

with a spanner etc. toward the 3rd needle and position the marking line on 1-turn switch collar to the center of

detecting part of 1-turn detector.

If there is no marking line, you do not need to move the position of 1-turn switch collar.

(2) Turn ON the main power supply and set Operation panel to display the needle position.

(3) Rotate the Coupling with radio pliers etc. and search reference position of needle position display.

[Note] Please note that the reference position varies, depending on whether 1-turn switch collar has a marking

line or not.

1) When there is a marking line on 1-turn switch collar

The position, where needle position display changes from 3 to 2

2) When there is no marking line on 1-turn switch collar

The center of the section, where needle position display on the Operation panel shows 2.

(4) Fix Hexagon socket head set screw on the coupling or Rotary switch pin

(5) Rotate the shaft, located at the side of Color change system, with a spanner etc. and set the 1-turn switch

color so that the detecting part of 1-turn detector detects the needle position.

(6) Attach the cover of Color change system and complete the mounting operation.

Detecting part of1-turn detector

1-turn stitch collarMarking line

Absolute encoder

Hexagon socket headset screw (M3X4L) in 2 places

Detectingpin

Coupling


Connecting pin

Rotary switch pin

Mounting status for the model, equippedwith Absolute encoder

from the very beginning of shipment

Mounting status for thecustomer-installed machines,modified to Absolute encoder

specification

11

C. Outline and check of Electrical partsThis chapter gives you explanations, based on D Series, type III machines.

The outline of measured wave forms or routing channel of Needle position display harness on the Operation

panel is available also for other models in common.

1. How to measure various types of signals

(1) Signal names and measuring points

Measure the channel between Connector pin and CP on D Joint13 card with an oscilloscope.

Measure with an oscilloscope Pin Nos. 2, 9, 10, 11 and 12 of CN3 [COLOR] at plus side and T1 of C1 at minus

side.

Measuring pointsSignal name

Probe (Plus side) Probe (Minus side)

Needle position 20 9 pin of CN3 T1 of CP





1-turn 2 pin of CN3 T1 of CP

(2) Measuring wave form

Signals are regarded as normal if the waveforms are observed as follows:

Shit the cursor to the 4th row from the top on Operation panel and check if 1-turn signal display is lit when

1-turn-sugnal is 0V.

Display of 1-turn signal

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Needleposition

20

21

22

23

24

1-turn signal

Needle position

1 2 3 4 5 6 7 8 9 10

12

(4) Detailed illustrations of the measuring points

2. Illustration of Harness routing channel

(1) For D Series, up to 12-needles

Connector CON22

Needle position detecting harness 1(up to 12 needles)

Absolute encoderTC Joint4 card

orTC Joint6 card

Connector JX07

ConnectorCON23

D Joint13 card20

21

22

23 24

T1

1-turn

CN3

TAJIMA D-JOINT13

CO

LOR

CN

3

14

Z24

NSD

T1

8

71

13

(2) For the D Series,15-needle models

(3) For the TME-DC Series

Connector 1REVConnector N4

Connector CON23

Needle position detecting harness 1(for 15-needle models)

TC Joint 5 card

Connector JX07

Absolute encoder

Needle positiondetecting harness 1

Connector CON23

Connector CON22

TC Joint 4 cardor

TC Joint 6 card

Connector JX07

TC Joint box

Absolute encoder

14

1

2

5

6

7

3 32

10

10

11 12

10

13 1112

6

4

12

89

6

54

5

6

7

8

9

5

6

7

8

9

9

7

5

8

4

3

1

2

3

1

2

3

1

5

4

5

3

6

6

1

2

1

2

7

8

5

4

2

3

9

10

11

39 3912

11

14

13

12

11

16

10

15

4

3

9

38 38

37 37

36 36

2 2

35 35

12

13

14

5

4

6

7

1

2

8

3

4

5

6

7

Z12

P12 JX07

CON23

1REV

20

21

22

23

P12

P12

P12

P12

JX06

CN1 CON2PC1

PC1

PC1

PC22

PC22

PC30

CN3(COLOR)

Z12Z12 Z5

IC18 JX01 JW02

IC18

IC18

IC18

IC18

IC17 IC17

IC17

IC17

Z12

Z12

P12

20

20

21

22

23

24

21

22

23

24

3. Input/output Diagram (1) D Series [III], up to 12 needles

AbsoluteEncoder

Needle position detector

TC Joint 4 card

Tension base

harness

Tension base

extension harness

Tension base card

1-turn

IMM2 cardD Joint13 cardTC Joint 4 card

Needle position signal

harness 2

Needle position signal harness 1 (up to 12 needles)

1-turn detector

[Output L at the time of detection]

9

15

1

2

5

6

7

3 32

10

10

13

12

11

10

13 1112

6

4

12

89

6

54

5

6

7

8

9

5

6

7

8

9

9

7

5

8

4

3

1

2

3

1

2

3

1

2

3

1

5

4

5

3

6

6

1

2

1

2

7

8

5

4

2

3

9

10

11

39 3912

11

14

13

12

11

16

10

15

4

3

9

38 38

37 37

36 36

2 2

35 35

12

13

14

5

4

6

7

3

1

2

8

4

5

6

7

Z12

P12 JX07

CON23

N4

1REV

20

21

22

23

P12

P12

P12

JX06

CN1 CON2PC1

PC1

PC1

PC22

PC22

PC30

CN3(COLOR)

Z12

Z12

Z5

IC18 JX01 JW02

IC18

IC18

IC18

IC20

IC17 IC17

IC17

IC17

Z12

Z12

P12

20

20

21

22

23

24

21

22

23

24

45IC18

(2) D Series [III], 15 needle models

Absolute encoder

Proximity switch

TC Joint 5 card Tension base card

Tension base

harness

Tension base

extension harness

1-turn

[Output L at the time of detection]

1-turn detector Needle position signal harness 1(15-needle model)

TC Joint5 card Needle positionsignal

harness 2

D Joint13 card IMM2 card

Needle position detector

9

how to replace rotary switch with …tashima.cl/pdf/tajima/color change rotary sw to absolute...

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