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Final force reference
With the "Final force" reference (final force used as the reference), the DIGIFORCE
®
9311 shifts the
curve to after the measurement phase and references it to the X-value of the last measurement point
(final force). If a measurement curve contains a forward and return section, the DIGIFORCE
®
9311 sets
the return point as zero when the reference is set to "Final force".
In joining processes, the end position is known accurately and validated in advance, for instance the
depth of the hole in a bearing seat. The press reaches its maximum force at this point. The
DIGIFORCE
®
9311 then uses this position as the reference value (zero) in the evaluation.
Diagram 44: "Final force" reference with parts A and B to be joined
Diagram 45: Example of a measurement curve using the "Final force" reference
Note:
In pneumatic or hydraulic presses, for instance, variations in the final force and the associated
bending of the mounting system (press frame) may also cause variations in the X-position.
Note:
Online evaluation of the "Window" graphical evaluation element is only relevant for the
"Absolute" and "Crossing trigger threshold" references. When the "Final force" or "Crossing
reference line" reference is used, the measurement curve is recalculated and repositioned after
the measurement. In these cases, the online evaluation uses the absolute X-reference for its
live response.
Summary of Contents for DIGIFORCE 9311
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