Leibinger JET3 up, Руководство по эксплуатации

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Page 276 Job Editor Group 8
Release R1.06 JET3up
Example:
In this example the print shall be carried out on tubes. The printout is an endless
print (e.g. Type, date of manufacturing, material etc.) and not each tube has the
same length. In addition the distances between the tubes are not always the same.
The basic mounting of the sensor and the print head is shown in Picture 10.
Picture 10 - Timing diagram
Picture 11-
Print head and sensor
mounting
Picture 12 – Settings
As shown in Picture 10 the print head and the sensor should be installed in parallel
to each other. If the sensor and the print head would be installed in row the
stopping of the printout at the end of a tube would be either too early or too late.
The printout shall start with the beginning of each tube and it shall stop at the end
of it without printing in the space between the tubes. For this a sensor which
recognizes the beginning and the end of a tube is used. The output of the sensor is
connected to the PrintGo and the PrintGoGate input of the JET3up printer (see
Picture 12). With this design the PrintGo signal together with the PrintGoGate
signal starts the printout and with the negative edge received from the sensor at
the end of the tube the printout stops.
The signal from the sensor is used for the PrintGo input as well as for the
PrintGoGate input. For the PrintGoGate input you need a high level and not only a
positive edge as for the PrintGo input.
Therefore it is important that the signal from
the Sensor is a signal level and not only a signal edge.