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Parameters in the "Measurement mode, Final force reference" menu (M19)
Reference
Final force
The last measurement point of the forward
measurement curve is the reference point (X = 0). For
a forward and return curve, the return point is the
reference.
-----
----
Parameter not relevant to the "Final force" reference
Reference: crossing Y reference line
With the "Reference line" reference, the DIGIFORCE
®
9311 shifts the curve to after the measurement
phase. In this case, the DIGIFORCE
®
9311 references the curve to the point at which it crosses a
configurable Y reference level.
If the final force in a pneumatic or hydraulic press varies, then using the "Final force" reference would
produce a spread in otherwise identical measurement curves. You can eliminate this variation, however,
by selecting a reference line that is below the final force of the press.
Diagram 46: Example of a measurement curve using the "Reference line" reference
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.
Parameters in the "Measurement mode, Crossing ref line reference" menu
(M19)
Reference
Y ref. line >> (above reference),
Y ref. line << (below reference)
The reference point is where the curve
crosses above or below the set Y-level
(Y reference line).
Y reference line
<value input>
Use the keypad to enter the value for the
Y-level.
Summary of Contents for DIGIFORCE 9311
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