Lenze EVS93xx CrossCutter - Manual (Page 35)

Cross Cutter
Features of the "Cross Cutter" prepared solution
 Prepared Solution Servo PLC / ECSxA 1.1 EN 2-21
Test operation
The user can use the test cut to cut a material sample. This sample can then be used to check
cut quality and material characteristics. Furthermore, it provides a means of determining the
dimensional accuracy of the cut. A dedicated calculation block is available for calculating motion
profiles for test operation. Two basic cams are reserved for calculating test cutting lengths in
"Test operation". This ensures that the user can be calculating a new test cutting length in the
background whilst continuing to cut to a different test cutting length. Once the new test cutting
length has been calculated, the corresponding motion cam can be preselected with the
calculated functions and replace the old test cutting length as soon as the current cut has been
completed. This means that the user can define parameters for the test cut separately from
other parameters for normal operation. "Test operation" can only be length-controlled (see
Chapter 2.5.6). You can switch from "Continuous cutting" and "Reject operation" to "Test
operation" without first having to stop the system. This means that it is possible to cut a test
piece from the material flow during operation. You must stop the system first in order to switch
to "Test operation" from "Asynchronous cross cutter" mode.
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Figure 4: Example representation of test cut operation
Individual cut material used as a
test sample.