SICK S300

Operating instructions Chapter 6
S300
8010948/YY96/2016-02-17 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 81
Subject to change without notice
Electrical installation
6.1 System connection
Y
ou will find all inputs and outputs of the S300 on the 24-pin screw terminal connection +
FE in the system plug.
You can either make connections directly to the terminal strip on the system plug or use a
pre-assembled system plug from SICK (see section 6.3 on page 86).
The system plug pin assignments vary depending on the S300 variant.
 If the cable gland/blanking plug is missing or not tightened, or if fixing screws are
missing or not tightened on the system plug, the IP 65 enclosure rating is not met.
 All inputs and outputs on the S300 are to be used only in the context specified.
Wiring in accordance with EMC regulations
The quality of the shield is essentially dependent on the quality of the connection of the
screen. In principle the best screening action can only be achieved with the connection of
the screen at both ends using large area connections.
 To connect the screen on the S300 use the EMC cable gland M12 (part no. 5308757).
 Use similar cable glands on the incremental encoders.
 If it is not possible to connect the screen via threaded fittings (e.g. on bus nodes),
connect the screen physically close, e.g. to a control cabinet chassis using a metal
clamp.
 If you want to operate two safety laser scanners in a system (communication via EFI),
then the same earthing method must be used for both safety laser scanners.
 If there is a PE in an installation, it can be used for the connection of the FE. However a
functional earth connection (FE) is never allowed to be used as a PE!
Functional earth
To achieve the specified EMC safety, the functional earth FE must be connected (e.g. to
the vehicle’s or system’s central earth star point).
Fig.
55
:
Screw terminal strip
on the system plug
Notes
Notes