btsr SMART MATRIX WINDINGFEEDER, Operating Manual

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Tension Profiler
SMART MATRIX WINDINGFEEDER - 44 -
Typically, we can consider two distinct cases:
Case 1:
- Startup with a higher tension (10 g in the example below)
- Switching to a lower work tension (5 g in the example below) after a given number of meters (after
200 m in the example below).
This condition can be useful to crimp the yarn on the package cone.
Example of parameter setup in the PROFILE window:
START METER = 200
START TENS = 10
WORK TENS = 5
INC/DEC METER = OFF
TARGET METER = OFF
Case 2:
- Startup with a lower tension (2 g in the example below)
- Switching to a higher work tension (5 g in the example below) after a given number of meters (after
200 m in the example below).
This condition can be useful when using elastic yarns, to avoid an excessive tension on the yarn during
the startup phase.
Example of parameter setup in the PROFILE window:
START METER = 200
START TENS = 2
WORK TENS = 5
INC/DEC METER = OFF
TARGET METER = OFF
In both cases, whenever a position is stopped for more than 3 seconds
(for instance after a yarn breakage
condition) , the system will resume the START TENS and will return to the normal WORK TENS (after the
number of meters defined in START METER ) .
3 - Tension Profiler Enabled with Target Activated ( TENSION MODE = PROFILER ) and
INC/DEC METER De-activated
The difference with respect to the previous example is that the system is programmed to provide the target
signal when reaching the number of meters setup
(position stop, and Target output generation) .
Besides the START TENS and WORK TENS , in this case it is possible to define a third tension value to be
applied as soon as the Target is reached ( TARGET TENS ).
This condition can be useful to facilitate the “doffing” operation.
The three tension values ( START TENS , WORK TENS and TARGET TENS ) can be freely chosen
depending on the application needs: