OPERATING MANUAL
PSEN op2H-A series
PSEN op2H-A-30-165/1
1650
PSEN op2H-A-30-180/1
1800
1.2.3 Minimum safety distance
The protective device must be positioned at a specific safety distance (Fig. 3), which
guarantees that the operator cannot reach the danger zone until the hazardous machine
movement has come to a standstill by triggering the light curtain.
In accordance with the standard ISO 13855, this distance depends on 4 factors:
•
Response time of the light curtain (the time that elapses between the beams being
effectively interrupted and the OSSD contacts opening).
•
Machine’s stopping performance (time that elapses between the light curtain contacts
opening and the hazardous machine movement effectively stopping).
•
Light curtain’s resolution
•
Approach speed of the object to be detected.
Fig. 3 – Safety distance (vertical)
H1 =
≥
900 mm at a resolution > 40 mm
H2 =
≤
300 mm at a resolution > 40 mm
S
=
Minimum safety distance in mm
1003069-EN-03
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