Operating Instructions Chapter 6
C4000 Palletizer Std./Adv.
C4000 Fusion
8012249/YT69/2016-02-25 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 61
Subject to change without notice
Mounting
6.2.1 Safety distance calculation as per Berufsgenossenschaft Nahrungsmittel und
Gaststaetten (BGN)
For protective fields of 1350 mm length, as per the decision by the Pruef- und Zertifizie-
rungsstelle in the Fachausschuss Nahrungs- und Genussmittel in the Berufsgenossen-
schaft Nahrungsmittel und Gaststaetten, it is also possible to use the following calculation:
In the case of goods detection with the aid of the C4000 Palletizer Standard a maximum
e
ntry depth until shutdown occurs of 450 mm is assumed. In the case of pallet detection
with the aid of the C4000 Palletizer Advanced, a maximum entry depth until shutdown
occurs of 900 mm is assumed.
How to calculate the safety distance C4000 Palletizer Standard with 1350 mm
protective field length:
Calculate the safety distance using the following formula:
S = k × T + E
Where …
S = Safety distance [mm] (minimum protective field length)
k = Approach speed [1600 mm/s]
T = Stopping/run-down time of the machine
+ response time of the protective device after light path interruption [s]
E = Entry depth into the protective field until shutdown occurs [450 mm]
Example:
Stopping/run-down time of the machine = 290 ms
Response time after light path interruption = 30 ms
T = 290 ms + 30 ms = 320 ms = 0.32 s
S = 1600 × 0.32 + 450 = 962 mm
due to minimum condition however S = 1350 mm
How to calculate the safety distance C4000 Palletizer Advanced with 1350 mm
protective field length:
Calculate the safety distance using the following formula:
S = k × T + E
Where …
S = Safety distance [mm] (minimum protective field length + 850 mm)
k = Approach speed [1600 mm/s]
T = Stopping/run-down time of the machine
+ Response time of the protective device after light path interruption [s]
E = Entry depth into the protective field until shutdown occurs [900 mm]
Example:
Stopping/run-down time of the machine = 290 ms
Response time after light path interruption = 30 ms
T = 290 ms + 30 ms = 320 ms = 0.32 s
S = 1600 × 0.32 + 900 = 1412 mm
due to minimum condition however S = 2200 mm
In the case of pallet detection with the aid of the C4000 Palletizer Advanced, if a person
places one leg in the first beam of the protective field and then steps over the protective
field with the second leg, the OSSDs may only be shutdown on the removal of the 1st leg
from the protective field. To exclude this residual risk, you must maintain a safety distance
of 2200 mm (protective field length + 850 mm).
Note