Installation; Preparation - Pepperl+Fuchs SLCS Original Instructions Manual

Safety Light Curtain SLCS

Installation

5 Installation
5.1

Preparation

Safety distance
A minimum distance must be maintained between the protection field and the
hazardous area to ensure potentially dangerous movements are brought to a stop
before there is contact with a person.
Sending unit
Figure 5.1
This distance is calculated from the lag time of the machine, the response time of
the safety system, and the speed of movement of the person entering the
hazardous area (EN ISO 13855).
To comply with the necessary distances in the event that the protection field
spreads, please refer to Table 1 of EN ISO 13855 to check the minimum distance
for a vertically located protection field. If the table gives you a reading of 0,
determine the minimum distance with the following formula:
S = K x T + C
The following applies to a protection field installed perpendicular to the
hazardous area:
S
K
T
1
t
2
t
C
For arrangements other than a perpendicular arrangement of the protection field, see
also EN ISO 13855.
Danger zone
Minimum interval S
Receiving unit
Protective field
Minimum distance between protection field and hazardous area
Minimum safety distance in mm,
i.e., the distance between hazardous area and protection field
Constant in mm/s for the speed of approach, based on the detection capacity of the
sensor
Total response time of the safety device in s (T = t
Response time of the safety device see chapter 9.5
Machine lag time
Additional distance in mm. See table
Number of 14 mm
beams/resol
ution
0 mm
+t )
1 2
30 mm 60 mm
128 mm 850 mm
EN
90 mm
850 mm
EN - 11