DRICO
slife
FU 12
Operating Manual
_______________________________________________________________________________________________________________________________________
DIN EN ISO 9001
status: 31.03.2017 / Rev. 01
page 17 of 48
Figure No.
Terminal No.
Designation
Input function
11.4
11, 12
ISK
ISK input (immobile core)
4.3.5 Light barrier connection
Through-beam light barriers as well as reflected-light barriers that work with 24 V
DC
operating voltage can be
directly connected to the control system.
The light barrier‘s input signal is connected to terminal No. 2 with the designation „LB in“ (figure 4 no. 11.2)
.
Figure no.
Terminal no.
Designation
Input function
11.2
11, 12
LB in
Light barrier input signal
The upper left clamp no. 1 with the designation „24V ¯|_|¯“ (figure 4 no. 11.1) is a 24 volt supply
that is briefly shutdown every 5 minutes for testing
purposes. A light barrier‘s transmitter, for
example, can be connected to this voltage supply. The light barrier‘s input signal function is
checked during the brief shutdown phase.
The different connection between a through-beam light barrier tested by blanking the transmitter
and an untested reflected-light barrier is shown in an example in the following two images:
Figure 5: Connection for tested through-beam light barrier
Figure 6: Connection for reflected-light barrier
