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8540581 - 29/09/2010 - Rev.10
MASTER/SLAVE POSITIONING
In addition to the standard ADMIRAL models, ADMIRAL
AX
BK 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.
In master/slave models the blanking function is available only on the MASTER barrier.
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.
Figure 3
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.
PROTEZIONE MECCANICA
PROTEZIONE MECCANICA
MACCHINA
PERICOLOSA
TX1
TX2
RX1
RX2
BARRIERA
MASTER
BARRIERA
SLAVE
Figure 4
MECHANICAL GUARD
MASTER
BARRIER
SLAVE
BARRIER
DANGEROUS
MACHINE
MECHANICAL GUARD
Barrier B
(MASTER)
Barrier A
(SLAVE)
Reference plane
Point of danger