
Chapter
7
Operating Instructions
UE 440/470
60
© SICK AG • Industrial Safety Systems • Germany • All rights reserved
8 010 432/P097/14-03-05
Application and switching
examples
7.1.2
Access protection with point-of-operation protection
Access to a robot cell is protected via a UE 440 with a multi-beam safety light barrier
M 2000 (
). The OSSD of the safety application is switched off due to the interruption of a
protective field. The side access door to the robot cell is monitored by a safety switch (
).
If the door is opened, the safety switch also switches off the OSSD of the safety
application.
An internal restart interlock is configured for the safety application. A signal lamp (
)
indicates that a reset is required after switch-off of the OSSD. The OSSD of the UE 440 is
reactivated by actuating the connected reset button (
).
Fig. 35: Connection of the
access protection for two
robot cells
Fig. 36: Access protection
with point-of-operation
protection