TOX EPW400, Operating Manual, Page: 82 / 118

Configuring the EPW 400
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OM 100.EPW400.202002.en
6.2.25 Distance rising
The measured values are measured with max. measuring intervals (2000 Hz) but only
stored if the distance compared to the last measured value has changed by the X-
interval entered.
This mode is recommended if negative changes of the distance are not intended to
be stored (usually clinch applications or pressing applications where only positive dis-
tance changes are relevant).
The number of pairs of values to be stored remains small. The measuring curve oc-
cupies little storage place and can be quickly drawn and evaluated.
If the final force can increase without changing the distance (block force), the option
'Add max. force at end of curve' can be selected. With this mode, the max. force and
the max. distance measured with max. sampling rate are recorded (comparable to a
maximum indicator). This pair of values is added to the curve.
6.2.26 Distance rising or falling
The difference with regard to the 'distance increasing' mode is that, here, the pairs of
values are stored when the distance has changed in the positive or negative direction
since the last stored value.
This mode is recommended if also negative distance changes have to be recorded
(e.g. pressing application with snap-back effects).
The number of pairs of values to be stored remains small. The measuring curve oc-
cupies little storage place and can be quickly drawn and evaluated.
6.2.27 Force or distance change
In this mode, a pair of values is stored if, since the last stored pairs of values, either
the distance has changed by the X-interval in the positive or negative direction, or the
force has changed by the Y-interval in the positive or negative direction.
This mode is recommended if the force can change without a change in distance
taking place (e.g. applications with large slip-in effects).
6.2.28 Time-triggered
With this mode, a timed storage of a pair of values takes place after x ms each.
If no changes are detected, similar pairs of values offering no information but occupy-
ing storage place and decelerating the evaluation and the drawing of the curve are
stored with this mode.
Should the work cycle run more slowly than specified in the measurement time, the
buffer for the acquisition of measured data will be full before the termination of a cycle
and there will be no record of the complete clinching/pressing process. In contrast,
the other measurement modes are independent of the execution time of the clinch-
ing/pressing process. Therefore, this mode is recommended for special applications
only where other modes do not lead to satisfying results.
Tapping on the value after the text " X interval " opens the input window with the nu-
merical keypad. Here you can determine the accuracy of measurement up to 1/100
mm.