Complementary information
It is r
ecommended to mark the course of the protective field boundaries on the floor. By
doing this, you allow machine operators to see the protective field boundaries and
make it easier to thoroughly check the protective function at a later date.
4.3.7.1 Protective field
In hazardous area protection, the minimum distance typically defines the protective
f
ield size required.
If you define a number of monitoring cases with different protective fields, you must cal‐
culate the protective field size separately for each protective field used.
In many cases, a resolution of 50 mm to 70 mm is suitable for hazardous area protec‐
tion. Resolutions coarser than 70 mm are not permitted.
4.3.7.2 Supplement C to protect against reaching over
Overview
U
nder certain circumstances, a person can reach the hazardous area by reaching over,
before the protective device stops the dangerous state. Supplement C prevents this.
Figure 15: Protection against reaching over with low scan plane (dimensions in mm)
PROJECT PLANNING 4
8024596/15VP/2019-11-15 | SICK O P E R A T I N G I N S T R U C T I O N S | nanoScan3 I/O
25
Subject to change without notice
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