Instruction manual

EFKA AB221A/AB321A + AB222A/AB322A (BA)
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For safety reasons this function is enabled only after a normal start of sewing. The light barrier must be covered as long as
the pedal is in position 0 (neutral). Then press the pedal forward. This function is disabled when the pedal is no longer
pressed forward after the seam end.
9.35.6 Light Barrier Filter for Knitted Fabrics
Function with or without control panel Parameter
Number of stitches of the light barrier filter (LSF) 005
Light barrier filter On/Off (LSF) 130
Light barrier sensing uncovered or covered (LSd) 131
The filter prevents premature enabling of the light barrier function when sewing knitted fabrics.
 Enabling/Disabling of the filter using parameter 130
 The filter is not active if parameter 005 = 0
 Adaptation to the mesh is possible by varying the number of filter stitches.
 Knitted fabric sensing with light barrier
- uncovered  covered, if parameter 131 = 0
- covered  uncovered, if parameter 131 = 1
9.35.7 Functional Variations of the Light Barrier Input
Function with or without control panel Parameter
Selection of the input function on socket B18/5 239
If the light barrier function is not used, a switching function can be assigned to the input on socket B18/5 as well as to
inputs in1...i10.
The following input functions are possible with parameter 239:
Parameter 239 = 0 Light barrier function: The input is prepared for a light barrier function.
Parameter 239 = >0 All other input functions are identical with those described for parameter 240 below.
9.36 Switching Functions of Inputs in1...i10
Function with or without control panel Parameter
Selection of the input function (in1...i10) 240...249
The functions of the keys/switches connected to socket connectors ST2 and B4 can be selected for inputs in1…i10 using
parameters 240…249.
Parameters 240...249 =
0 Input function blocked
1 Needle up/down: Upon pressing the key, the drive runs from position 1 to position 2 or from position 2 to position 1.
If the drive is not in the stop position, it runs to the pre-selected basic position.
2 Needle up: Upon pressing the key, the drive runs from position 1 to position 2.
3 Single stitch (basting stitch): Upon pressing the key, the drive performs one rotation from position 1 to position 1. If
the drive is in position 2, it runs to position 1 upon pressing the key and from position 1 to position 1 each time the
key is pressed again.
4 Full stitch: Upon pressing the key, the drive performs a full rotation depending on the set stop position.
5 Needle to position 2: If the drive is not in position 2, it runs to position 2 upon pressing the key. After power On the
drive runs until it has been synchronized.
6 Machine run blockage effective with open contact: Upon opening the switch, the drive stops in the pre-selected
basic position.
7 Machine run blockage effective with closed contact: Upon closing the switch, the drive stops in the pre-selected
basic position.
8 Machine run blockage effective with open contact (unpositioned): Upon opening the switch, the drive stops
immediately unpositioned.