Lenze EVS93xx CrossCutter - Manual (Page 95)

Cross Cutter
Features of the "Cross Cutter" prepared solution
 Prepared Solution Servo PLC / ECSxA 1.1 EN 2-81
2.5.13 Calculating the print-mark-sensor distance
In order to be able to use mark correction, you need to define the exact distance between the
mark sensor and the curve zero of the x axis. As illustrated previously in Chapter 2.2.2, the
curve zero does not line up with the six o'clock position of the knife. This makes it very difficult
to measure the distance between the print-mark sensor and the profile zero crossing. In order to
make it easier for the user to determine the print-mark-sensor distance, this is calculated
internally. The user simply has to tell the system the distance between the print-mark sensor
and the six o'clock position on the knife by entering this value in code C3668/000. The value
calculated for the distance between the print-mark sensor and the profile zero crossing is written
automatically to global variable g_dnXTpPos.
Figure 33: Calculation of the mark sensor distance
Cutting length Δs
Distance from TP sensor to
6 o'clock position on the knife Δl
Cutting angle φ
Knife
Knife drum
Diameter D