Instruction manual

Instruction Manual
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6.28.2 General Light Barrier Functions
Function with or without control panel
Parameter
Light barrier compensation stitches (for long stitch length)
Number of light barrier seams
Light barrier compensation stitches (for normal stitch length)
Light barrier sensing uncovered/covered
Start of sewing blocked/unblocked with light barrier uncovered
Thread trimming at seam end by light barrier detection on/off
(LS)
(LSn)
(cLS)
(LSd)
(LSS)
(LSE)
004
006
010
131
132
133
 After sensing the seam end, the compensating stitches are counted at light barrier speed.
 Suspension of the procedure with pedal in pos. 0 (neutral). Interruption of the procedure with pedal
in pos. -2.
 The thread trimming operation can be disabled using parameter 133, regardless of the setting of key 5 on
the V820/V850 control panel. Stop in the basic position.
 Programming of max. 15 light barrier seams depending on the setting of parameter 006 with stop in the
basic position. Thread trimming after the last light barrier seam.
 Light barrier sensing uncovered or covered at the seam end can be selected using parameter 131.
 Start blockage with light barrier uncovered programmable using parameter 132.
The light barrier compensating stitches can be programmed and varied using the above parameters directly on
the control or on a connected control panel. For fast operator information (HIT) when using the V820/V850
control panel, the value of the function switched on using key 3 can be displayed for approx. 3 seconds. During
this time, the value can be varied directly by pressing key + or -. The stitch count is always displayed according
to the selected stitch length (parameter 004 or 010).
6.28.3 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.
6.28.4 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.