
MSI 100 and MSI 200 safety modules
Leuze electronic
MSI 100/200
35
A1/A2
Supply connection A1/A2 is used to supply the logic of the safety module as well as the clock
and signal outputs with voltage.
Double terminal contacts
A1/A1 and A2/A2
The double terminal contacts A1/A1 and A2/A2 are looped through and can be used to supply
other modules or sensors.
At the double terminal contacts, 2 and 3-conductor sensors and command devices can be sup-
plied directly by the safety module (U
N
= 24 V DC).
ATTENTION: Module defect
The module can be permanently destroyed by an excessive current load.
•
Observe the maximum permissible continuous current for devices connected to termi-
nals A1 and A2
Limiting continuous current for looped-through current paths A1/A1 and A2/A2: see "Limiting
continuous current" on page 101.
WARNING: Loss of the safety function through parasitic voltages
With 3-conductor sensors, make certain that the GND potential of the sensor/command
device is the same as the GND potential of the safety module.