Operating Instructions Chapter 7
M4000 Adv., Adv. A/P, Area
8010797/PA53/27-06-05 © SICK AG • Industrial Safety Systems • Germany • All rights reserved
55
Commissioning
7.2.2 Aligning sender and receiver
WARNING
Secure the plant/system. No dangerous state possible!
Ensure that the dangerous state of the machine is (and remains) switched off! During the
alignment process, the outputs of the multiple light beam safety device are not allowed to
have any effect on the machine.
How to align sender and receiver in relation to each other:
Check with a spirit level whether the devices and the deflector mirrors, if used, are
mounted vertically.
Check whether the following points are the same distance from the floor:
M4000 Advanced or M4000 Area 60/80
– first beam of the sender
– first beam of the receiver
– when using deflector mirrors: centre of the first mirror surface
M4000 Advanced A/P
– first beam of the M4000 Advanced A/P
– centre of the first mirror surface for the M4000 Passive (with mirror deflection) or
centre of the first beam for the M4000 Passive (with fibre-optic deflection)
Loosen the clamping bolts which hold the multiple light beam safety device in place.
Switch the power supply to the multiple light beam safety device on.
Watch the alignment information on the 7@segment display of the receiver. Correct the
alignment of the sender and receiver (or of the M4000 Advanced A/P and the M4000
Passive), until the 7@ segment display goes off.
Fix the multiple light beam safety device using the clamping screws.
Switch the power supply off and then back on again and check via the 7@segment
display whether the alignment is correct after tightening the clamping bolts (see Tab. 22
or Tab. 23).
7.2.3 Special aspects of alignment with deflector mirrors
If you use the M4000 multiple light beam safety device with deflector mirrors (mirror
columns), then you must note the following points when aligning the mirrors:
1. On the deflection of several beams using a mirror column, each individual mirror
must be adjusted separately.
2. For deflection using mirrors, the angle of incidence equals the angle of reflection.
This means: A slight rotation of the mirror results in a change that is twice as large
(see Fig. 40).
If the light beam is guided to the receiver using a deflector mirror, only part of the
original diverging beam is passed on.
The alignment tolerance will become smaller with each further deflection
(see Fig. 41).
Always use an alignment aid when aligning the M4000 Advanced with deflector mirrors
(see section “Alignment aids” on page 52).
Recommendation
AUDIN - 7 bis rue de Tinqueux - 51100 Reims - France - Tel : 03.26.04.20.21 - Fax : 03.26.04.28.20 - Web : http: www.audin.fr - Email : info@audin.fr
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