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Operating Instructions
Chapter
5
C4000 Select
8012247/RI61/2007-11-30
© SICK AG • Industrial Safety Systems • Germany • All rights reserved
41
Installation and mounting
5.3
Laser alignment
The C4000 Select provides an internal, collimated, visible class 1 laser to assist you with
the alignment of C4000 Select sender and receiver units. The laser used for aligning the
sender to receiver is located in the C4000 Select sender unit. Further adjustments should
be performed at the C4000 Select receiver unit until the system is properly aligned.
To activate the laser, locate the button near the DIP switches in the C4000 Select sender
unit. Press the button for more than 0.25 seconds. Once pressed and released, the laser
will be illuminated for four (4) minutes. If the button is pressed again, it will shut the laser
off.
The signal indicator on the C4000 Select receiver unit indicates the current state of align-
ment between it and the corresponding sender unit. There are five (5) LEDs that are rela-
ted to this function. When the first LED is yellow, the synchronization beam of the sender
and receiver has been detected. As the percentage of beams increases, the number of
yellow LEDs that are illuminated also increase. When all five LEDs are illuminated yellow,
the sender and receiver units are aligned, but there is a weak signal. When all five LEDs
are illuminated green, the sender and receiver units are aligned with adequate signal
detected.
The laser alignment tool of the C4000 Select is rated to
laser safety class 1. Additional measures for screening the
laser radiation are not necessary.
This device meets the standard CDRH 21 CFR 1040.10 as well as EN 60825
@
1:2007.
There the following note is required: “Caution — use of controls or adjustments or perfor-
mance of procedures other than those specified herein may result in hazardous radiation
exposure!”
The laser is used to align the optics between a single sender and receiver pair. However,
when a cascaded system is implemented, the laser from one C4000 Select sender could
cause a lockout condition in a receiver in another C4000 Select sender/receiver pair in
the cascade. If this lockout condition occurs, cycle power and perform the alignment pro-
cedure again.
Note