User
Manual
Version
1.0
25
single
component
fail
‐
safe
laser
shutter
system
The
single
component
fail
‐
safe
laser
shutter
system
is
integrated
in
the
LightHUB®
housing
inside
the
LightHUB®
ULTRA.
Safety
is
achieved
by
using
two
independent
laser
shutters
with
mutual
monitoring.
Please
see
following
figure
for
shutter
position
inside
the
LightHUB®.
Figure
7:
Shutter
area
inside
of
LightHUB®
The
laser
shutters
are
controlled
via
the
connector
on
the
back
of
the
LightHUB®
ULTRA
housing.
In
LightHUB®
ULTRA
devices,
Return
1
and
Return
2
are
internally
connected
together.
Connect
a
switch
between
‘send’
and
one
of
the
two
‘return’
pins.
Close
the
switch
to
open
the
shutter,
open
the
switch
to
close
the
shutter.
Each
shutter
monitors
its
own
status
and
the
status
of
the
second
shutter.
If
one
of
the
shutters
detects
an
error
condition,
it
blocks
the
laser
beam
and
closes
the
second
shutter
as
well.
The
following
error
conditions
may
occur:
‐
External
control
signal
for
shutter
1
unequal
to
external
control
signal
for
shutter
2
‐
External
control
signal
for
shutter
n
unequal
to
feedback
signal
from
shutter
n
The
error
condition
is
cleared
by
opening
the
external
switch
between
‘send’
and
the
two
‘return’
pins.
Содержание Light HUB Ultra
Страница 1: ......
Страница 21: ...User Manual Version 1 0 21 Figure 6 LightHUB ULTRA inside view ...
