MSI 100 and MSI 200 safety modules
Leuze electronic
MSI 100/200
34
3.4.5
Ground-switching outputs
O0- and O1-
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
3.4.6
Supply connections
24V/0V
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.
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.
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.
