Pilz PSSu K F EI CV Operating Manual page 15

Function description
Example:
}
Three axes are to be monitored.
}
One module is used per axis:
–
–
–
}
If a monitoring function has reacted at axis 1 or axis 2, then axis 3 is to be stopped.
} Wiring:
–
}
Configuration:
–
–
Operating Manual PSSu K F EI CV(-T)
1004290-EN-04
CAUTION!
Potential loss of safety function due to the use of cascading for safety-re-
lated applications
Depending on the application, serious injury or death may result. Cascading
should only be used to network additional modules.
Axis 1 = Module 1
Axis 2 = Module 2
Axis 3 = Module 3
Connect together the CIO terminals of all modules, whose axes are to be stopped
at the same time. Make sure that the modules are connected to a common 0 V peri-
phery supply.
Set the I-variable ActivateCascading to TRUE for module 1, module 2 and module 3
on the block FS_EI_Basic. This means that the result of the monitoring functions
will affect the cascading output CIO of module 1 and module 2.
In the hardware configuration, the "Activate cascading input" option must be set to
"Yes" for module 3. This means that the result of the monitoring functions from
module 1 and module 2 will affect the cascading input CIO of module 3. If a monit-
oring function should react on module 1 or module 2, axis 3 monitored using mod-
ule 3 will be stopped.
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