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MASTER/SLAVE POSITIONING
In addition to the standard models, SLC / SLG 410 RF is available in the MASTER/SLAVE
configuration. Such configuration is made of two pairs of light curtains, where the two
emitters and the two receivers are respectively connected in series.
The most common application is shown in Figure 3: the horizontal light curtain (A) has been
installed to detect the presence of a person between the vertical light curtain (B) and the
dangerous machine at system power-up or restart.
The length of the connection cable between the master and the slave can be up to 50 m.
This makes it possible to install two light curtains - one at the front and the other at the rear
of the machine – with just one connection to the power and control circuits of the machine.
Light curtain /
LIGHTCURTAI
Light grid
MASTER
6
Light curtain
Lightcurtain
/ Light grid
SLAVE
Lightcurtain /
Light curtain / Light grid
light grid A
MASTER
(MASTER)
Reference plane
TX1
Emitter
BARRIERA
MASTER
MASTER
N / LIGHT
Receiver
RX1
Point of danger
Figure 3
PROTEZIONE MECCANICA
MECHANICAL GUARD
MACCHINA
DANGEROUS
PERICOLOSA
MACHINE
PROTEZIONE MECCANICA
MECHANICAL GUARD
Figure 4
TX2
Emitter
Light curtain /
SLAVE
BARRIERA
LIGHTCURTAI
Light grid
SLAVE
N / LIGHT
SLAVE
Receiver
RX2
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