SICK C4000 Fusion

Operating Instructions Chapter 6
C4000 Palletizer Std./Adv.
C4000 Fusion
8012249/YT69/2016-02-25 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 63
Subject to change without notice
Mounting
How to calculate the safety distance S according to EN ISO 13855 and EN ISO 13857:
The following calculation shows an example calculation of the safety distance. Depending
on the application and the ambient conditions, a different calculation may be necessary.
 First, calculate S using the following formula:
S = 2000 × T + 8 × (d – 14) [mm]
 Where …
T = Stopping/run-down time of the machine
+ Response time of the protective device after light path interruption [s]
d = Resolution of the safety light curtain [mm]
S = Safety distance [mm]
The reach/approach speed is already included in the formula.
 If the result S is  500 mm, then use the determined value as the safety distance.
If the result S is > 500 mm, then recalculate S as follows:
S = 1600 × T + 8 × (d – 14) [mm]
 If the new value S is > 500 mm, then use the newly determined value as the minimum
safety distance.
 If the new value S is  500 mm, then use 500 mm as the minimum safety distance.
Example:
Stopping/run-down time of the machine = 290 ms
Response time after light path interruption = 30 ms
Resolution of the safety light curtain = 14 mm
T = 290 ms + 30 ms = 320 ms = 0.32 s
S = 2000 × 0.32 + 8 × (14 – 14) = 640 mm
S > 500 mm, for this reason:
S = 1600 × 0.32 + 8 × (14 – 14) = 512 mm
Fig.
37
:
Safety distance to
the hazardous point for
vertical mounting
Note
Hazardous
point
Distance to avoid standing behind

75
mm
Safety distance S (D
s
)
Protective field height