Adler 743-121 programming guide

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Part 4: Instructions f or pr ogramming D A-Micr ocontr ol cl. 743-121

Progra m version : 7 43LC-A0 3

1. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2. Description of the Controls

2.1 Operating Elements on the Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.2 Operating Elements in the Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3. Setting the Sewing and Testing Programs

3.1 Display of the Program Version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.2 Sewing Programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.3 Setting Blower Times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3.4 Step Motor Controller Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3.5 Timer and Memory Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3.6 Current Passage Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3.7 Test of the Front Panel Elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3.8 Test of the Input Elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.9 Selecting the Input Elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.10 Selecting the Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3.11 Positioning the Machine Head in the 2nd Needle Position . . . . . . . . . . . . . . . . . . . . . 10

3.12 Positioning the Machine Head in the 1st Needle Position . . . . . . . . . . . . . . . . . . . . . 11

3.13 Positioning the Machine Head without Thread Trimming . . . . . . . . . . . . . . . . . . . . . . 11

3.14 Positioning the Machine Head with Thread Trimming . . . . . . . . . . . . . . . . . . . . . . . . 11

4. Operation Displays and Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

5. Step Motor Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

5.1 Status display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

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1. General

The DÜRKOPP ADLER 743-121 controls, with the int egrat ed MU LTI­TEST testing and monitoring system, assumes control and supervision

of the sewing process. Operating errors and malfunctions are dis­played.

Special programs simplify mechanical adjustments and allow a quick
checking of the i np ut an d o ut pu t e le me nt s.

The data is sh own i n a 2 • 16-digit display.
All functions c an be al te r ed by pres sin g th e ap pr o priate button. The

machine must be in its in it ial setting. The set values (seam leng th , fu n­ction on/off, etc.) are put into the memory (battery- powered buffer)
and activated when th e m ac h in e i s next switche d o n.

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2. Description of the Controls

2.1 Operating El ements on t he Fr ont P ane l

Button Description

Selecting the sewing and testing programs

Stopping th e cu r r en t p rogr am
Activating the se lected program

Button Description Button Description

Seam length 1

Seam length 2

Seam length 3

Seam length v ia li gh t b a rrier

Normal stitch /
Stitch condensing stitch

- Reserve -

- Reserve -

Soft start

Stitch condensing at the seam
beginning

Stitch condensing at the seam end

Increase value

- Reserve -

Decrease value

Set counter
Start test program

4

Smoother

Blower from above/be low

2.2 Operating Elements in the Controls

The switch b417 in the control must be set suitably for the individual
work methods.

The dials b401 un d b 40 2 a r e w it ho ut fu nc t io n f r om version " A 03 " .

Caution Current !

The switches may only be changed when the main switch is turned off.

Switch b417 open clo sed
1 Smoother - Reserve ­2 Thread monitor activ Thread monitor not activ
3 - Reserve - - Reserve ­4 Nmax. = 4.800 RPM Nmax. = 4.300 RPM
5 Chain stitch - Reserve ­6 - Reserve - - Reserve ­7 - Reserve - - Reserve ­8 - Reserve - - Reserve ­Initial position = all switches in open status

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