The safety distance for SLG 422/ 425I-P is calculated as follows:
S = ( 1600 mm/s * T ) + 850 mm
S = safety distance [mm]
T = after-running time of the m reaction time of the safety light grid
K = Approach speed 1600 mm/s
C = Safety addition 850 mm
Example:
Reaction time of SLG 422/ 425I-P = 10 ms
After-running time of the machine T = 170 ms
S = 1600 mm/s * (170 ms + 10 ms) + 850 mm
S = 1138 mm
The following assembly heights have to be considered:
Number of beams
2
4.1.4 Minimum distance to reflective surfaces
Subject to technical changes
Page 5
When installing SLG 422/ 425I-P the effects of reflection from specular surfaces must be considered. Improper
Assembly height over
reference level (floor) in mm
400, 900
! Attention
Safety light grid SLG 422/ 425I-P
danger spot before the dangerous movement has stopped might get seriously injured.
Always keep the safety distance between the SLG 422/ 425I-P and the danger spot. Any person that can reach the
installation might result in improper detection of detection zone interruptions and thus lead to serious injuries.
When installing SLG 422/ 425I-P in close proximity to highly reflective surfaces (e.g.. metal walls, floors, ceilings or
workpieces) strictly keep the following minimum distance
a
.
! Attention
Acce s s d i re ctio n
Ob s ta cle
Op ti c a l a xis
R e fl e cti ve s u rfa ce
(e .g . co n ta i n e r)
Bo rd e r o f a
d a n g e ro u s s p o t
a = 1 0 5 m m
E/R u n it A
E/R u n it B
4
4
Access direction
a = 130 mm
Mirror
SLG 422/ 425I-P
Optical axis
Reflective surface
(e.g. container)
Border of a dangerous spot
5°
5°
Obstacel
