Efka dc1550 - Reflection Light Barrier LSM002; Automatic Start Controlled by Light Barrier; Light Barrier Filter for Knitted Fabrics; Functional Variations of Light Barrier Input

Instruction Manual
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7.16.3 Reflection Light Barrier LSM002
Sensitivity setting:
Set minimum sensitivity depending on the distance between light barrier and reflection area (turn potentiometer
as far as possible to the left).
 Potentiometer directly on the light barrier module
Mechanical orientation:
Orientation is facilitated by a visible light spot on the reflection area.
7.16.4 Automatic Start Controlled by Light Barrier
Function with or without control panel
Parameter
Delay of automatic start
Automatic start On/Off
Light barrier sensing uncovered
Start of sewing blocked with light barrier uncovered
(ASd)
(ALS)
(LSd)
(LSS)
128
129
131
132
This function enables an automatic start of the sewing operation as soon as the light barrier senses the insertion
of fabric.
Prerequisites for the operation:
 Parameter 009 = 1 Light barrier On
 Parameter 129 = 1 Automatic start On
 Parameter 131 = 1 Light barrier sensing uncovered
 Parameter 132 = 1 No start of sewing with light barrier uncovered
 The pedal must be kept pressed forward at the seam end.
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.
7.16.5 Light barrier filter for knitted fabrics
Function with or without control panel
Parameter
Number of stitches of the light barrier filter
Light barrier filter On/Off
Light barrier sensing uncovered or covered
(LSF)
(LSF)
(LSd)
005
130
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.
7.16.6 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 B18/8 as well
as to inputs in1...i10.
The following input functions are possible with parameter239
239 = 0
Light barrier function: The input is prepared for a light barrier function.
239 = >0
All other input functions are identical, as described in the next section "Inputs for switches
and keys".