System setup and possible uses
Leuze electronic SOLID-4 15
TNT 35/7-24V
DEUTSCHENGLISHFRANÇAISITALIANOESPAÑOLNEDERLANDS
3 System setup and possible uses
3.1 The opto-electronic protective device
Mode of operation
SOLID-4 consists of an SD4T transmitter and an SD4R
receiver. Beginning with the first
beam (the synchronizing beam) directly after the display panel, the transmitter pulses
beam for beam in rapid sequence. The synchronization between transmitter and receiver is
performed optically.
The SD4R receiver recognizes the specially f
o
rmed pulse bundles of the transmitter beams
and opens the corresponding receiver elements in sequence in the same rhythm. A
protective field is consequently formed in the area between the transmitter and receiver,
the height of which depends on the geometrical dimensions of the optical protective device,
the width of which depends on the distance selected between the transmitter and receiver
within the permissible range.
Basic functions, such as start/restart interlock
and/
or contactor monitoring, can optionally
be performed by the electronics of receiver model SD4R-E. As a result, no downstream
Safety Interface Device is generally necessary if receiver model SD4R-E is chosen.
a = Transmitter
b = Receiver
Fig. 3.1-1: Working principle of the opto-electronic protective device
To Next Page
Loading...
