Operating instructions

Operating Instructions Chapter 4
C4000 Standard/Advanced
8009861/WA65/2012-06-12 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 27
Subject to change without notice
Configurable functions
14 mm 20, 30 or 40 mm
Deflector mirror
Minimum Typical Minimum Typical
1 × PNS75 6.6 m 7 m 8 m 13 m
2 × PNS75 6.3 m 7 m 8 m 12 m
1 × PNS125 7.1 m 9 m 17 m 18.5 m
2 × PNS125 6.3 m 8 m 15.2 m 16.8 m
The information in the table relates to 90° beam deflection per mirror and a protective
field height of 900 mm. If you need more advice on mirror applications, please get in touch
with your contact at SICK.
4.8 Blanking
The blanking function is only available on the C4000 Advanced.
The C4000 Advanced offers various ways of blanking the protective field. In this way in
many applications a higher level of safety and availability can be assured than would be
possible without the usage of the blanking function. This requires the careful analysis of
the usage of blanking as part of a risk analysis for these applications. Only if the analysis
produces advantages in reliability and thus advantages in safety when the blanking func-
tion is used the usage of the function is recommended.
The person responsible for the machine has the responsibility to decide whether or not to
use the blanking function and to undertake the installation, mounting and configuration of
the light curtain such that
 the necessary safety is achieved on the machine
and
 access to the hazardous area through the safety light curtain in conjunction with the
blanking function is prevented by other guards.
Fixed blanking Floating blanking
Fixed blanking Fixed blanking with
increased size
tolerance
Floating blanking
with complete
object monitoring
Floating blanking
with partial object
monitoring
An object of fixed
size must be at a
specific point in the
protective field.
On one side of the
fixed blanking an
object of limited size
is allowed to move
through the
protective field.
An object of fixed
size must be within
a specific area of
the protective field.
The object is
allowed to move.
An object of limited
size is allowed in a
specific area of the
protective field. The
object is allowed to
move.
See page 29. See page 29. See page 31. See page 32.
Tab.
8
:
Scanning range when
using 1 or 2 deflector mirrors
Note
Tab.
9
:
Overview of the
blanking function