Operating Mode; Reference Points, Origin And Offset - Elesa DD52R-E Operating Instructions Manual

DD52R-E - DD52R-E-RF
Electronic digital position indicators
7. Operational mode

7.1 Reference points, origin and offset

When the device is turned on or reset, the position of the shaft
at that moment is set as the origin of the measure.
The value attributed to this position is given by the parameters,
Origin and Offset, which can be set by the user. Origin is an
arbitrary number that can be set in the range -199999÷999999
depending on the resolution set and is to be considered as the
machine's limit switch value in its default conditions.The offset
is added to Origin which is always an arbitrary value that can be
set in the range -199999÷999999 depending on the resolution
and which allows you to move the actual origin of the measure
based on any changes in the machine configuration.
For example, a certain set point can operate different tools with
relative displacements of the point of origin. For example, in
the case of a tube cutting machine the device indicates the
position of the stop that determines the length of the tube. The
limit switch point is fixed but it does not necessarily correspond
to a zero length of the tube and therefore Origin will be different
from zero but always the same.
However, the machine makes it possible to mount different
blades depending on the type of tube and these can have
different positions and/or thicknesses.Therefore the actual
length will have to be corrected with a determined value which
will be memorised as an offset.
For greater flexibility of use, the DD52R-E permits storage of up
to 10 different offset values. To program the offset values see
the OFFS parameter in chap. 8.2.
However, during installation and for other specific applications,
it is useful to be able to reset the internal reference value in
another position. For this purpose, see chap. 8.5.1.
WARNING:The value of the Origin parameters and the offsets
are the same for the mm and inch units of measure and are
displayed, depending on the unit of measure in use (see
chap. 7.4), with the appropriate conversion coefficient.In the
case of degrees, these parameters are totally different and
independent from the previous ones.
EN
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