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 TRIAD's advanced "Auto-Blank"
option is unique because it will automatically blank out only
the required number of beams needed to accept an obstruction
such as a conveyor, bracket or fixture.
The unit is easily programmed
by a supervisory controlled four position keyed selector switch
located on the front panel of the detector pylon (shown left).
The "Auto-Blank" method
of blanking is much safer than DIP switch or master/slave blanking
systems because only the area of the obstruction will be blanked.
This feature prohibits unsafe oversizing of the blanked area
commonly found throughout industry on manually blanked systems.
"Auto-Blank" also eliminates the need to count beams
and to locate where and what beams are to be shut off to obtain
the correct beam elevation to accept an obstruction. "Auto-Blank"
will also watch the obstruction and, if it moves or is removed,
will go into a "machine stop mode" to prevent further
machine operation. This is an additional safety feature not available
on manually blanked units. These features truly enhance production
while providing the ultimate in safety.
When the key switch is turned
to the "Auto-Blank" function, the "Quickview Diagnostics
Display" will show the number of blocked beams for two seconds,
then verify that the obstruction is being monitored. This is
required information for the depth penetration factor and for
proper installation of any safety light curtain.
The versatile "Auto-Blank"
(AB) Blanking Series includes:
- Constant scan light curtain
- One Beam Floating Blank built-in
plus "Auto-Blank" capability
- Two "Auto-Blank" Modes
- up to 8 beams blanked but need not be sequential
A. One "Auto-Blank" mode with keyed reset when
guarded zone is penetrated
B. One "Auto-Blank" mode with automatic reset
when guarded zone is penetrated.
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