Efka AB620A5035 - Thread Trimmer;Thread Wiper (Lockstitch Modes); Trimming Speed; Chainstitch Thread Cutter (Var. Modes); Chainstitch Machine Trimming Signal Times

- AB620A5035
- 37 -
7.17.1 Thread Trimmer/Thread Wiper (Lockstitch Modes)
Function
Parameters
Thread wiper time
Thread wiper switch-on delay
Holding power output M1 of the thread trimmer backward
Thread trimmer activation angle
Switch-off delay of thread tension release
Thread tension release switch-on delay
Stop time for thread trimmer
Upper limit ON period of thread trimmer backward
Switch-on delay angle of the thread trimmer
(t6)
(dFw)
(t11)
(iFA)
FSA
FSE
(tFA)
EV-
FAE
205
209
213
250
251
252
253
255
259
Thread trimming in the lockstitch modes is performed at trimming speed.
When the thread trimmer is off, the drive stops in position 2 at the seam end; it stops in position 1 at the end of
programmed seams.
The thread wiper ON period can be set depending on the selected trimming mode (see chapter "Timing
Diagrams" in the List of Parameters). The delay time (t7) (Parameter 206) prevents sewing foot lifting before the
thread wiper is in its initial position.
If the thread wiper is not connected, there will be a delay time (tFL) after thread trimming until sewing foot lifting.
7.17.2 Trimming speed
Function
Parameters
Trimming speed
(n7)
116
7.17.3 Chainstitch thread cutter (var. modes)
Thread trimming in the chainstitch modes is performed at machine standstill in position 2.
The signal sequence of M1...M4 and sewing foot lifting at the seam end can be set as desired using parameters
280...288 (Parallel or sequential).
When the thread trimmer is off, the drive stops in position 2 at the seam end.
7.17.4 Chainstitch Machine Trimming Signal Times
Signal delay times and ON periods can be set with the help of the following parameters.
See chapter 8 »Setting the Basic Functions, Selection of Functional Sequences« in this manual for further
information on chain stitch seam end variants and chapter »Timing Diagrams« in the List of Parameters.
Function
Parameters
Delay time output M1
ON period output M1
Delay time output M2
ON period output M2
Delay time output M3
ON period output M3
Delay time output M4
ON period output M4
Delay time until sewing foot On
(kd1)
(kt1)
(kd2)
(kt2)
(kd3)
(kt3)
(kd4)
(kt4)
(kdF)
280
281
282
283
284
285
286
287
288