1107200
Shadow VI User Manual
page 8
Chapter 1
Introduction to Shadow VI
Safety Light Curtain
At the Control
Four indicators appear on the front cover of the control and are clearly labeled. The
green
"curtain clear" indicator means that the light curtain is unobstructed and the machinery will
be allowed to operate (the control relay contacts are held closed or in the unobstructed/
energized state). The "floating window" indicator lights up
amber
when this blanking
feature is enabled inside the control (see Chapter 2). The "stop signal" indicator goes
red
when the light curtain is obstructed, the control relay contacts are open (or in the de-
energized
state) and the press is disabled, if there is misalignment, or when Shadow has detected an
internal malfunction. The
yellow
"reset required" signifies that a “reset required” or
condition exists. This could occur during power-up if “power up reset” settings are
enabled at the control (see Chapter 2), or if Shadow detects an internal malfunction with any
of the components (transmitter, receiver, or control).
Inside the Control
There are four indicators inside the control (refer to Figure 2-14 in Chapter 2 for location of
components). DS1 and DS2 are red indicators that are located just above the TB2 receiver
connectors at the lower right-hand corner of the board. They light up
red
if you are using
only 1 set of optic heads and there is an obstruction, misalignment, or internal problem. If
you have 2 sets, DS1 lights up red when Set 1 (wired to the upper connectors of TB2 and
TB3) is interrupted, the optic heads are misaligned, or an internal problem exists. DS2
corresponds with Set 2, which are wired to the lower connectors. Refer to the
troubleshooting guides in Chapter 4 for more details.
DS3 and DS4, located in the upper right-hand corner of the control near the power supply,
light up
green
all the time to indicate that power is going to the receiver and transmitter
respectively.
Chapter 4 provides troubleshooting guides which reference the indicators at the control and
the optic heads. They suggest how to solve a problem with the light curtains when certain
conditions exist.
Object Sensitivity
Object sensitivity is the minimum diameter object that Shadow can detect. Object sensitivity
for Shadow is 1
1/4
" (3.2 cm), which means that it will detect any object of this diameter or
larger anywhere in the sensing field. Shadow light beams are on
3/4
" (1.9 cm) centers. An
object smaller than 1
1/4
" diameter could pass undetected through the light field if it traveled
in a path directly between the light beams.
Size and Scanning Distance
Shadow is available in a wide array of standard sizes from 6" to 60". Shadow's standard
scanning distance is 25 feet (7.6 meters), and optionally 50 feet (15.3 meters). The "standard
range" units cannot be modified for "extended range" capability.
Summary of Contents for Shadow VI
Page 142: ...1107200 Shadow VI User Manual page 130 Appendix C Installation of Shadow VI WPC Control Board ...
Page 144: ...1107200 Shadow VI User Manual page 132 Appendix D Replacement Parts ...
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