Rockwell Automation Allen-Bradley 140M, Руководство пользователя

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24 Rockwell Automation Publication 450L-UM001F-EN-P - March 2022
Chapter 3 Operation
distance. To find optimum alignment for a 450L-E and 450L PAC safety light
curtain system, the laser of each stick must be aligned to the opposite stick.
Figure 12 - Principal Function of the Integrated Laser Alignment System
In a cascading system, each integrated laser system works independently and
can be switched on or off individually.
The 450L-B safety light curtain sticks have no integrated laser alignment
system. For those sticks, an optional external alignment aid (see
Figure 191 on
page 178 ) with a mounting clamp ( Figure 192 on page 178 ) is available.
IMPORTANT A white background (for example, paper) makes it easy to identify the
brightest beam.
IMPORTANT Figure 12 indicates additional visible laser beams (dotted) to the
connection end of the stick. Such beams do not have to be considered
for the alignment procedure.