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Contrinex Industrial Electronics
SAFE
FIG. 4: POSITIONING THE LIGHT CURTAIN
SAFE
For practical details on L-shaped installations, please consult the rele-
vant paragraph on page 35.
MINIMUM SAFETY DISTANCE REQUIRED
Since the principle of light curtains and access control barriers is to de-
tect an intrusion early enough to intervene in the machine cycle before
anyone has had time to reach the danger zone, positioning of protec-
tive equipment must respect the approach speed of parts of the human
body, as well as the total response time of the installed safety system.
The following methodology, based on EN/ISO 13855, can be used to
determine the proper minimum safety distance:
