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7/17 jokab safety
ABB Low Voltage Industrial Products 0312
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Focus II is a new version of our previous light beam/light curtain
Focus. Features such as muting and override are standard in
all Focus II light curtains and light beams. For light curtains,
blanking and break functions are also standard. The optical
sensors on Focus II also have variable frequency.
The Focus
II units are light grids/curtains with safety functions intended
for applications where it is of great importance to protect
persons from a dangerous machine, robot or other automated
systems where it is possible to access to a dangerous area.
Focus II creates a protection field with infrared beams. If any
beam is interrupted the safety mechanism is triggered and the
dangerous machine is stopped. Focus II fulfills the requirements
for non-contact safety equipment type 4 (Focus 4 series)
according to the international regulation standard EN 61496-1.
Units are available with safety heights between 150 and 2400
mm. All electronic control and monitoring functions are included
in the light curtain profiles. External connection is made via a M12
connection at the end of the profile. Synchronization between
transmitter and receiver is achieved optically. No electrical
connection between the units is required. Control and monitoring
of the beam transmission is carried out by two micro-processors
which also give information on the status and alignment of the
light curtain via several LEDs.
Muting and Override included in all Focus II
The ”Muting” and ”Override” functions are available on all Focus
II light grids/curtains and is enabled directly when an indication
lamp LMS is connected. Muting implies that one or more
segments or the whole light curtain can be bypassed during in
and out passage of material.
In the Focus II with Muting there is also an Override function
which makes it possible to bypass the light grid/curtain i.e.
activate the outputs if a machine start is necessary even if one
or more light beams are interrupted. This is the case when the
muting function is chosen and the A and B inputs
A light grid/light curtain with many possibilities
Safety light grids, curtains and scanners
Focus II
Application:
Optical protection in an opening or around a risk area