Leibinger JET3 up, Руководство по эксплуатации

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Group 8 Job Editor Page 287
JET3up Release R1.06
Example: This function may be used for Corona / Plasma pre-treatment security.
A corona treatment device modifies the surface of materials especially
plastic material as a preparation for the ink jet print. The corona
treatment and the ink jet print happen on the fly. In case the production
line stops or gets too slow there is the danger that the surface of the
material can be destroyed by the corona treatment if the device isn’t
stopped. The stop can be managed by the speed dependent output of
the JET3up. In this example the speed is set to 30 m/min. The speed is
detected through the encoder signals which are also used for the
positioning of the JET3up printout. As soon as the production line
reaches or exceeds the set speed the assigned output will switch to a
high level. This high level remains as long as the speed doesn’t drop
below 27 m/min (30 m/min -10%). If the speed drops below the lower
limit the output will switch to a low level. The output level is used to
control the on/off of the corona treatment electrode.
Picture 16 – Example corona treatment control with speed dependent
output