EFKA FP220A5911
51
11.3 Start Backtack/Start Stitch Condensing
Function
without
control panel
Control
Single start backtack
LED 1 On
S2 key
Double start backtack
LED 2 On
Start backtack Off
both LEDs Off
Start stitch condensing On; number of stitches with stitch regulator
LED 1 On
S2 key
(parameter 001)
Start stitch condensing On; number of stitches without stitch
LED 2 On
regulator
(parameter 000), after that number of stitches with stitch regulator
(parameter 001)
Start stitch condensing Off
both LEDs Off
Function
with
control panel
V810/V820
Single start backtack
lefthand arrow above key On
1 key
Double start backtack
righthand arrow above key On
Start backtack Off
both arrows Off
Start stitch condensing On; number of stitches with stitch regulator
lefthand arrow above key On
1 key
(parameter 001)
Start stitch condensing On; number of stitches without stitch
righthand arrow above key On
regulator
(parameter 000), after that number of stitches with stitch regulator
(parameter 001)
Start stitch condensing Off
both arrows Off
The start backtack/start stitch condensing starts by pressing the pedal forward at the beginning of the seam. From lifted
sewing foot the backtack is delayed by the time t3 (start delay after switching off the sewing foot lift signal). Start backtack
as well as start stitch condensing are executed automatically at speed n3. They cannot be interrupted. If softstart is running
parallel, the respective lower speed is prevailing.
If backtack synchronization (parameter 298) is off, the stitch regulator will be synchronized to position 1.
The stitch regulator will be switched off after completion of the stitch count (parameter 001) and the speed n3 after a delay
time t1. Then pedal control is returned.
Counting is synchronized to position 1.
11.3.1 Speed n3 at the Start of the Seam
Function
with
or
without
control panel
Parameter
Start backtack/start stitch condensing speed
(n3)
112
When programming 3-digit or 4-digit parameter values on the control, the 2-digit or 3-digit values displayed must be
multiplied by 10.
11.3.2 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
The start backtack/start stitch condensing stitches with or without stitch regulator can be programmed and varied by means
of 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 by means of
the
1
key can be displayed for approx. 3 seconds. During this time, the value can be varied directly by pressing the
+
or
-
key.
