Hook Thread Monitoring; Hook Thread Counter Adjustment - Duerkopp Adler 540-100-1 Operating Instructions Manual

4.4 Hook thread monitoring

4.4.1

Hook thread counter adjustment

Hook thread monitoring mode of operation:
Hook thread monitoring is carried out by counting the buttonholes.
With the insertion of a full bobbin the hook thread counter is set to a
predetermined value. This value is subtracted by one with each
complete cycle. When the value 0 is reached the operator receives an
information message.
There should be some remaining thread on the bobbin.
Note
This principle only functions when the same amount of bobbin
thread is used per buttonhole or sequence. Changing frequently the
cut length, buttonhole form or buttonhole parameter changes the
amount of bobbin thread used per buttonhole.
Select the submenu "Hook thread counter"
With the ñ and ò keys choose in the main menu the line "Hook
–
thread counter".
–
Press OK- key.
The submenu "Hook thread counter" is displayed.
Submenu "Hook thread counter" displayed parameters:
Current hook thread counter value
N7.1
Sets the display in the main menu to the initial value indicated in N7.2
below.
With the ñ and ò keys select the relevant line.
–
–
By pressing the OK-key the indicated value in the main menu will
be set to the initial value.
–
The display changes automatically back to the main menu.
Initial value
N7.2
Total number of possible buttonholes with the remaining thread on the
bobbin.
Select the relevant line with the ñ and ò keys.
–
–
Press the OK-key.
The curser blinks under the position of a numerical value.
Move between the digits with the keys ï and ð.
–
Increase or decrease the digit value with the keys ñ and ò.
–
–
Confirm with the OK-key.
Choose line N7.1 with the arrow keys ñ and ò
–
–
By pressing the OK-key the indicated value in the main menu will
be set to the initial value.
–
The display changes automatically back to the main menu.
1
21