29 BA_KA-ED_A22_190313_en.doc
4.13.5 Sewing a blind stitch
The machine is sewing; the sewing material is transported by the carriage. The stitch
ends when the light barrier S10 changes from “dark” to “light” because of the sewing
material. Light barrier S8 is at “dark” there.
Seam end = S10 “light” and S8 “dark”.
The sewing is stopped. Once in cutting position, the plunger is lifted,
a side transport runs and the thread brake closed when the 1V1 solenoid switches on.
Sequence continues at point “4.13.6 Retraction of the carriage”.
4.13.6 Retraction of the carriage
The carriage retracts until light barrier S8 detects “light” and stops then. The thread is
cut at the start of retraction.
Retraction end = S10 “dark” and S8 “light”
When the 1V1 solenoid switches off, the plunger is closed and the thread brake
opened.
Sequence continues at point “4.13.5 Sewing a blind stitch”.
4.13.7 End of the sewing program (S10 “light” and S8 “light”)
The sequence described under point “4.13.5 Sewing a blind stitch” and
“4.13.6 Retraction of the carriage” is repeated until the light barriers S8 and S10
detect “light” at the same time.
Sewing program end = S10 = “light” S8 “light”
Once the needle is positioned, the plunger is lifted, a side transport runs and the
thread brake closed when the 1V1 solenoid switches on.
The carriage retracts until basic switch S3 is pressed and stops then.
Beginning with the retraction the delay time “t2” (parameter F-751) starts running.
After “t2” has expired the clamping device and the rear Differential feed are opened
(1V2 off).
When the 1V1 solenoid switches off, the plunger is closed and the thread brake
opened.
In the home position after completion of the sewing cycle, the blow-off device is
activated on the reflex foil from the light barrier S10 (1V3).
The renewed start of the sewing program is done as described under point “4.13.2
Close clamping device, lapel part is inserted”.
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