Rockwell Automation 445L GuardShield Micro 400 Safety Light Curtain User Manual - Manual (Page 30)

R
GuardShield™ Micro 400 Safety Light Curtain User Manual
28
Original instructions
Appendix
GuardShield Micro 400 Special
Safety Light Curtain Systems
Content
Introduction
Systems with reinforced profiles
Perimeter systems
Special patchcords
Special systems
In addition to the GuardShield Micro 400 manual this appendix
gives some additional information for some GuardShield Micro
400 special systems.
Systems with Re-inforced Profiles
The GuardShield Micro 400 standard safety light curtains are
usually offered in the slim profile with dimensions of 20 x 15 mm.
The maximum length is limited to 1200 mm (47.2 in.) to prevent a
damage by twisting or bending. For longer lengths up to 2200
mm the systems are offered in a re-inforced profile. Standard and
cascaded systems are available based on the re-inforced profile.
Robust (re-inforced) Profile Dimensions [mm (in.)]
Figure 22: Cross section of the re-inforced profile
Perimeter Systems (PAC)
Perimeter systems are usually produced by means of several
single beam light barriers. But the flexibility of the GuardShield
Micro 400 system allows also the production of vertical entry
safeguarding according to the standard EN ISO 13855 [2010].
Such systems are composed of active and passive elements in one
compact profile. The element length of each is 50 mm (1.97 in.)
(variations are given in the appendix).
The big advantage of GuardShield Micro 400 Perimeter systems is
the easier way of mounting and the uncomplicated way of
starting up the operation. The time needed to connect the wires
and aligning the optics is reduced in comparison to standard
perimeter systems consisting of single beam light barriers, where
often mirrors are also included which can only be positioned with
difficulties.
The protective field and the active elements, respectively, are
clearly recognized as surfaces with the integrated optical lenses.
The not monitored areas (passive elements) are also clearly
indicated as black surfaces.
How to Calculate the Safety Distance S for
GuardShield Micro 400 PAC Systems
In the case of perimeter systems or light curtains with a resolution
d > 40 mm, the safety distance is calculated for vertical mounting
light curtains and horizontal approach, according to the formula:
S = 1.6 mm/ms x T + 850 mm
More detailed information regarding safety distance and safety
heights can be found in standard EN 13855 (2010).
30 (1.18)
40
(1.57)
Flat bracket kit for reinforce
profile. (Two per kit) supplied
with each pair
Two kits required per pair.
445L-AF6140
Adjustable 180° bracket kit (two
per kit) for reinforced profile.
Two kits required per pair.
445L-AF6141
29.5
(1.16)
M6x40
M4x16
11
(0.43)