Efka dc 1500 - Speed N4 at the Seam End; Stitch Counting for End Backtack;End Stitch Condensing; Stitch Correction and Last Stitch Backward; Double End Backtack;End Stitch Condensing

EFKA FP220A5911
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11.4.1 Speed n4 at the Seam End
Function with or without control panel Parameter
End backtack/end stitch condensing speed (n4) 113
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.
11.4.2 Stitch Counting for End Backtack/End Stitch Condensing
Function with or without control panel Parameter
Number of stitches forward or without stitch regulator (c3) 002
Number of stitches backward or with stitch regulator (c4) 003
The end backtack/end 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 4 key can be displayed for approx. 3 seconds. During this time, the value can be varied directly by pressing the + or -
key.
11.4.3 Stitch Correction and Last Stitch Backward
Function with or without control panel Parameter
Last stitch backward On/Off (FAr) 136
Stitch correction time (c9) 151
The backtack solenoid can be delayed in the double end backtack by selecting a stitch correction time (t9) by means of
parameter 151.
For some sewing procedures it is desirable that the backtack solenoid in the single end backtack is disabled only after
trimming. This function can be selected by means of parameter 136.
Parameter 136 = 0 last stitch forward
Parameter 136 =1 last stitch backward
11.4.4 Double End Backtack/End Stitch Condensing
The backward section and/or end stitch condensing will be executed for a number of stitches that can be set. Then the stitch
regulator will be disabled and the forward section and/or normal stitch condensing stitches will be executed. The number of
stitches for the two sections can be set separately.
After stitch counting (parameter 003) the trimming function will be initiated. During the entire operation the sewing speed
is reduced to speed n4, with the exception of the last stitch, which will be performed at positioning speed n1.
In the case of slow backtack mechanisms it is possible to delay disabling of the stitch regulator in the single and double end
backtack by the time t9 (end backtack stitch correction).
11.4.5 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.
The letter symbols in parentheses ( ) are visible only if the V820 control panel is connected!