Instruction manual

EFKA AB221A/AB321A + AB222A/AB322A (BA)
52
9.4.2 Stitch Counting for Start Backtack/Start Stitch Condensing
Function with or without control panel Parameter
Number of stitches forward or without stitch regulator (c2) 000
Number of stitches backward or with stitch regulator (c1) 001
Double start backtack repetition (war) 090
Backtack repetition On/Off (Fwr) 092
The start backtack/start stitch condensing stitches with or without stitch regulator can be programmed and varied using the
above parameters directly on the control or on a connected V810/V820 control panel.
For fast operator information (HIT) when using the V820 control panel, the value of the function switched on using key 1
can be displayed for approx. 3 seconds. During this time, the value can be varied directly by pressing the + or - key.
9.4.3 Stitch Correction and Speed Release
Function with or without control panel Parameter
Stitch correction time (t8) 150
Delay until speed release after start backtack (t1) 200
Speed release after single and double backtack can be influenced by parameter 200.
In the case of slow backtack mechanisms it is possible to delay disabling of the stitch regulator in the single and double
start backtack by the time t8 (start backtack stitch correction) and thereby prolong the backward section. This time-lag can
be selected by means of parameter 150.
9.4.4 Double Start Backtack
The forward section will be sewn for a number of stitches that can be set. Then the stitch regulator signal will be issued and
the backward section will be executed. The number of stitches for the two sections can be set separately.
9.4.5 Single Start Backtack / Start Stitch Condensing
The stitch regulator signal will be issued and the backward section and/or start stitch condensing will be executed for a
number of stitches that can be set.
9.5 End Backtack / End Stitch Condensing
Function without control panel Control
Single end backtack LED 3 On Key S3
Double end backtack LED 4 On
End backtack Off both LEDs Off
End stitch condensing On; number of stitches with stitch regulator LED 3 On Key S3
(parameter 002)
End stitch condensing On; number of stitches with stitch regulator LED 4 On
(parameter 002), after that number of stitches without stitch
regulator (parameter 003)
End stitch condensing Off both LEDs Off
Function with control panel V810 V820
Single end backtack left-hand arrow above key On Key 2 Key 4
Double end backtack right-hand arrow above key On
End backtack Off both arrows Off
End stitch condensing On; number of stitches with stitch left-hand arrow above key On Key 2 Key 4
regulator (parameter 002)
End stitch condensing On; number of stitches with stitch right-hand arrow above key On
regulator (parameter 002) , after that number of stitches
without stitch regulator (parameter 003)
End stitch condensing Off both arrows Off