Ground-Switching Outputs; Supply Connections - Leuze electronic MSI 200 Series User Manual

O0- and O1-
24V/0V
Leuze electronic
3.4.5

Ground-switching outputs

The ground-switching outputs O0- and O1- increase the shutdown protection and cross-circuit
protection of the safety system. For example, these outputs can be used to disconnect a con-
tactor connected to the safety module both via the safe 24 V output and via ground.
The ground-switching outputs are assigned to the safe outputs as follows and can only be
used in the respective combination:
– Ground-switching output O0- to output O0
– Ground-switching output O1- to output O1
In order to use the ground-switching outputs, perform the corresponding configuration for
outputs O0 and O1 in the MSIsafesoft configuration software.
For more detailed information, please see topic "Configuring the I/Os of the safety module"
in the help system.
3.4.6

Supply connections

WARNING: Loss of the safety function
The use of unsuitable voltage supplies and the incorrect connection of the voltage supply
can result in the loss of the safety function.
Only supply the supply voltage at connections A1/A2 and 24/0V on the base device of
•
a MSI 100/200 system via the same voltage supply.
Likewise, supply the supply voltage for all other devices participating in the system via
•
the same voltage supply.
Only use power supply units with safe insulation and SELV/PELV in accordance with
•
EN 50178 / VDE 0160.
WARNING: Loss of the safety function through interference
EMC interference can lead to the loss of the safety function.
Connect the output-side GND connection of the power supply unit to the functional earth
•
(FE) of the system.
Connect the two supply connections (A1/A2 and 24V/0V) for an intended function of the
safety module.
The 24V/0V supply connection is used to supply the safe outputs of the safety module as well
as the ground-switching outputs with voltage.
MSI 100 and MSI 200 safety modules
MSI 100/200 34