Leibinger Jet 2, Руководство пользователя

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Group 5 Transport/start up Page 36
Release 3.00 Leibinger-Jet 2 se
5.3.3 Print Go interface X5 (print triggering)
For the creation of the print triggering (print go signal) a 5-pole plug socket X5 is
assembled on the rear side of the device on which an external print go signal can be fed
in.
The signal can be created with a bounce free and potential free contact (inner resistance
≤
1 k
Ω
) or with electronic PNP/NPN proximity switches (observe Pin assignment in the
connection plug).
A supply voltage of 24 V DC, 100 mA for sensors can also be taken from the plug socket
(
X5 ) on the rear side of the device.
The print go signal is created through a signal jump. A shaft encoder must be used in
addition for the synchronisation of the print speed with the product speed (with variable
speed).
Figure 8
5.3.4 Shaft encoder
5.3.4.1 Description and pin assignment
With a variable product speed a shaft encoder must be used for the synchronisation of
the print speed with the product speed or for the regulation of the constant type width.
Shaft encoders with 5 volt logic and line drivers as per EIA 485 A or EIA 422 A can be
used. The transmission ratio between product and shaft encoder speed should be
selected in such a manner that a maximum output frequency of 150 kHz is not
exceeded.
Shaft encoders with 1000, 2500, 5000 and 10000 impulses/revolution are avaiable.
Example: Photo cell with connection cable and plug
Plug X5 for product sensor at the
backside of the electronics cabinet.