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3
System Configuration and Functions
3.1
System Configuration
Two microprocessors handle the redundant processing
of the signal sequences within the intelligent Modular
Safety Interface MSI. The results of the two processors
are continuously compared. If any deviations are found,
the safety-related outputs are immediately switched off
and the LED indicating an MSI failure lights up.
Sensor signals at inputs S1 and S2 are checked. Depen-
ding on which of the functions (as described below) are
selected, when the protected fields of all connected
AOPDs are free the MSI outputs switch automatically to
the ON state (without start/restart interlock) or remain in
3.2
DIP Switch Settings
3.2.1
DIP Switch Settings for the MSI-s Module
Cut off the voltage supply to the interface (see safety
precautions) loosen the subassembly with the imprint
12
the OFF state until the reset button has been pressed
and released (with start/restart interlock = standard ope-
rating mode).
On the output side, the MSI-s is equipped with two positive-
guided, normally open contacts.
The MSI safety interface comes in a 35 mm-wide slide-in
housing that holds the MSI-s module and the /R output
module. It is suitable for mounting on a grounded 35 mm
standard rail.
"MSI-s" and pull this module partly out of the housing
before resetting the DIP switches:
MSI-s
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