Efka AB620A5035 - 7.6 Start Ornamental Backtack;Stitch Condensing; 7.7 End Ornamental Backtack;Stitch Condensing

- AB620A5035
- 30 -
7.5.5 Single End Backtack / End Stitch Condensing
The stitch regulator signal will be issued and the backward section and/or end stitch condensing will be
executed for a number of stitches that can be set. During the last stitch the speed is reduced to positioning
speed.
When using the V820 control panel, direct access by means of the function key (key 9) is possible!
Function with control panel
Parameters
Backtack repetition On/Off
(-F-)
008 =8
7.5.6 Backtack Synchronization
Function with or without control panel
Parameters
Backtack synchronization for start and end backtack On/Off
Backtack synchronization speed
(nSo)
(nrS)
298
299
If parameter 298 is on, the backtack speed will be switched to backtack synchronization speed one stitch before
engaging and disengaging of the backtack solenoid. After the switch on and off the locking magnets, during the
next position 2 the lock speed is released again. If the synchronization speed, adjustable with parameter 299, is
higher than the locking speed, the locking speed is retained. Backtack synchronization is possible in the start
and end backtack.
7.6 Start Ornamental Backtack/Stitch Condensing
Function without control panel
Control
Function "ornamental backtack" On/Off
Ornamental backtack stop time
Single start ornamental backtack
Double start ornamental backtack
Start ornamental backtack Off
(SrS)
(tSr)
Segment 1 on
Segment 2 on
Both segments off
135
210
key E (S2)
The parameters of the start backtack speed and the backtack stitches forward and backward are identical with
the standard start backtack.
Difference from the standard start backtack:
 The drive stops for stitch regulator switching
 The stop time can be set
When using the V820 control panel, direct access by means of the function key (key 9) is possible!
Function with control panel
Parameters
Ornamental backtack On/Off
(-F-)
008 =2
7.7 End Ornamental Backtack/Stitch Condensing
Function without control panel
Control
Function "ornamental backtack" On/Off
Ornamental backtack stop time
Single end backtack
Double end backtack
End backtack Off
(SrS)
(tSr)
Segment 3 on
Segment 4 on
Both segments off
135
210
Key + (S3)
Function with control panel
V810/V820
Function "ornamental backtack" On/Off
Ornamental backtack stop time
Single start ornamental backtack
Double start ornamental backtack
Start ornamental backtack Off
(SrS)
(tSr)
Left-hand arrow above
key On
Right-hand arrow above
key On
Both arrows Off
135
210
Key 1