Thread Clamp - Duerkopp Adler 281 Instruction Manual

6.5 Thread clamp

Parameter Number
without
234
235
239
155
210
211
Note: If the parameter 235 is set to "3" or "4", the holding power for sewing foot lifting during
thread clamping can be adjusted via parameter 239 :
The value of parameter 239 must be set to:
-
-
14
The sewing machine is equipped with thread clamp as standard.
Table of all parameters relating to the function "thread clamp" at seam
beginning.
Designation
Thread clamp function ON/OFF
Switch the thread clamp function using the F-key at the operating panel
C-200 ON/OFF.
(Function "F1" for the thread clamp function must be adjusted)
Seam end with the thread trimming stitch forward or backward with
thread wiper function at the seam end
or
Thread clamp at seam beginning
0 = Trimming stitch forward with thread wiper function
1 = Trimming stitch backward with thread wiper function
2 = Trimming stitch forward with thread clamp function
3 = Trimming stitch backward with thread clamp function
Function thread clamp (NFL = sewing foot lifting)
0 = Thread clamp off
1 = Thread clamp without NFL with parameter 210 + 211
2 = Thread clamp without NFL (for light material)
(FK ON = 108°; FK OFF = 268°)
3 = Thread clamp with NFL (for heavy material)
(FK ON = 108°; FK OFF = 268° / NFL ON = 108°, NFL OFF = 154°)
4 = Thread clamp with NFL (for applications with high sewing foot pres-
sure or thread breakage at seam begin)
(FK ON = 108°; FK OFF = 268° / NFL ON = 44°, NFL OFF = 154°)
5-11 = Function thread clamp not suitable for class 281
Holding power for sewing foot lifting (NFL) during thread clamping
(Effective if parameter 235 is set to "3" or "4")
1% - weak holding power
100% - strong holding power
Output function for PIN 27 (OB)
FK = Thread clamp (additionally check parameter 234 and 235)
Thread clamp ON in angular degree
Set parameter 235 to "1" or "5"
Thread clamp OFF in angular degree
Set parameter 235 to "1" or "5"
a lower value, if the holding power for sewing foot lifting is too strong or
a higher value, if the holding power for sewing foot lifting is too weak
(for example: thread breakage at seam beginning).
Preset value
F1 to ON
2
2
25
FK
0°
0°