Simons Voss Technologies SmartRelais 3 Advanced Manual page 52

SimonsVoss
Manual
SmartRelais 3 Advanced
Reader in
the un-
protected
area
Safety switch
(zero voltage switch)
Elec. connection
to the relay in the controller
The SREL3 ADV system provides effective protection to prevent
unauthorised persons from putting dangerous machines into operation and
injuring themselves. The reader is fitted to the machine requiring protection
and connected to the controller. The relay in the controller does not switch
until an authorised identification medium has been activated on the reader,
thus unblocking the power supply to the machine by switching the
contactor. Only then can the machine be switched on at the safety switch.
There are two options for installing the reader:
– The reader is fitted into the machine housing. This variant is hidden
from view and offers effective protection against the weather, dirt, fluids
and mechanical impacts, depending on the machine housing.
– The reader is fitted on or next to the machine housing. This variant is
visible on the outside and makes it easier for users to place their
identification medium onto the reader. The read range is better
compared to a reader fitted inside a (metal) housing. The protective
housing (SREL2.COVER1) ensures protection against the weather, dirt,
liquids and slight mechanical impacts.
No-one can manipulate the data since communication is secured from the
reader to the controller and to LSM. When the data reach the controller, the
controller evaluates them. If there is a virtual network and connection to
LSM (Ethernet), the latest information is retrieved using the identification
Encrypted connection
to the controller
6 | Setting up
Ethernet connection to LSM
Optional PoE instead of PSU
Controller in the
protected area
52 / 135
External PSU