SICK S300 User Manual

Operating instructions Chapter 4
S300
8010948/YY96/2016-02-17 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 41
Subject to change without notice
Configurable functions
This configuration is only allowed if the protective field cannot be left in the direction of the
hazardous point and if a person can be detected at every point in the hazardous area by
the S300!
Configuration of the S300 with restart interlock
Do not confuse the restart interlock with the starting interlock on the machine. The starting
interlock prevents the machine starting after switching on. The restart interlock prevents
the machine starting again after an error or a protective field infringement.
The OSSDs on the S300 switch to the OFF state to initiate a machine  or vehicle stop as
soon as there is an object in the protective field . They do not switch to the ON state ,
even if there is no longer an object in the protective field. The OSSDs only switch to the ON
state if the operator operates the control switch for restart or reset.
WARNING
Place the control switch for restart or reset outside the hazardous area in a place
where it can clearly be seen from the hazardous area!
Place the control switch for restart or reset outside the hazardous area such that it cannot
be operated by a person in the hazardous area. Ensure that the person who operates the
control switch has a full view of the hazardous area.
 You will find examples on the connection of the internal restart interlock in section 7.3
“Connection diagrams” on page 92.
 If you do not use the internal restart interlock, leave the inputs disconnected (see
section 6.1.1 “Pin assignment on the system plug” on page 82).
Reset
The reset function is often also called “preparation for restart”. In these operating instruc-
tions the term reset is used.
If you want to activate the restart interlock on the S300 (internal) and also a restart inter-
lock on the machine (external), then each restart interlock has its own control switch.
After operating the control switch for the internal restart interlock (with protective field
unoccupied) …
 the S300 switches its OSSDs to the ON state.
 the LED  on the safety laser scanner illuminates green.
The external restart interlock prevents the machine from restarting. After resetting the
S300 the operator must press the control switch to restart the machine controller.
WARNING
Ensure that the correct sequence is followed!
The controller must be realized such that the machine only restarts if the S300 is first
reset and then the control switch for restarting the machine controller is operated.
Fig.
16
:
Schematic outline of
the operation with restart
interlock
Note
Notes
Note

SICK S300 Specifications

General

Protection Class	IP65
Resolution	30 mm
Interface	RS-422, Ethernet
Power Supply	24 V DC
Operating Temperature	0 °C ... +50 °C