Operating Instructions
Chapter
3
C4000 Select
8012247/RI61/2007-11-30
© SICK AG • Industrial Safety Systems • Germany • All rights reserved
13
Product description
3.2.2
The light curtain principle
The C4000 Select safety light curtain consists of a sender and a receiver (Fig. 1). Between
these two units is the protective field, defined by a protective field height and a protective
field width.
The construction height determines the
height of the protective field
of the appropriate
system. For the exact protective field height, please see Tab. 40ff. in chapter 11.4
“Dimensional drawings” on page 64.
The
width of the protective field
is derived from the dimension of the light path between
sender and receiver and must satisfy the specification requirements for the protective field
(see “Technical specifications” on page 55).
Sender and receiver automatically synchronize themselves optically. An electrical connec-
tion between both components is not required.
The C4000 Select is modular in construction. All optical and electronic components and
assemblies are housed in a slim and torsionally rigid housing.
3.2.3
Device variants
The C4000 Select sender and receiver devices support several end cap configurations.
You must decide which end cap is best suited for your application at time of order place-
ment. The bottom end cap supports the system connection and optional extended I/O
functionality. Three top end cap options are available: cover only, with an optional
integrated LED or with an optional extended I/O connection.
There are several variants of the C4000 Select:
without any extension connection (no extended I/O capability)
without any extension connection (no extended I/O capability) with integrated LED on
the top end cap of the receiver unit
with extension connection (supports cascading) located on the bottom end cap with the
system connection
with extension connection (supports cascading) located on the top end cap with a sepa-
rate bottom end cap having the system connection
with extension connection (supports cascading) located on the bottom end cap with the
system connection with integrated LED on the top end cap of the receiver unit
3.2.4
Standalone and cascaded systems
The C4000 Select allows you to coordinate multiple protective devices (e.g. additional
C4000 Select devices or SICK S300/S3000 safety laser scanner) in a single safety
system.
A maximum of three C4000 Select devices can be connected in series as a “cascade”. The
following configurations are possible:
standalone operation of a single C4000 Select system
cascade of a host C4000 Select with a guest C4000 Select
cascade of a host C4000 Select with two guest C4000 Select devices
cascade of a host C4000 Select with a SICK S300/S3000 safety laser scanner
Cascaded devices are connected using the extended I/O connection. The extended I/O
connection may be located either beside the system connection (extended I/O connection
on the bottom end cap) or separate from the system connection (extended I/O connection
on the top end cap).
