Pilz PSSu K F FCU - Manual (Page 16)

Function description
Operating Manual PSSu K F FCU
1002391-EN-04
16
Fast shutdown
Fast shutdown of inputs and outputs
The module directly sets the state of the outputs as soon as a signal change takes place at
one of the input pairs I00 and I01, I02 and I03, I04 and I05 or I06 and I07. You can deter-
mine which input has triggered the fast shutdown by using the data type "FS_I_FCU".
Deactivate fast shutdown for inputs
The data type "FS_O_FCU" can be used to deactivate the fast shutdown for individual input
pairs.
The state of these inputs is signalled to the head module via the module bus and no direct
shutdown of the outputs occurs.
An overview of the I/O data types can be found in the chapter entitled
Access to I/O data
types [ 19] .
Deactivate fast shutdown for outputs
You can deactivate the fast shutdown for individual outputs in the configuration software. If
fast shutdown is deactivated, the head module sets the state of the outputs via the module
bus.
Further information is available in PAS4000's online help.
Integrated protection mechanisms
When the PSSu E F PS1(-T) is used to supply the system, the module supply is buffered
for 20 ms if the supply voltage is interrupted.
The module provides the following diagnostic data:
} Start-up error
} Configuration error
} FS communication error
} Bus termination error
} Temperature error: too warm
} Test pulse error
} Input error
} Output error
The module has the following protection mechanisms:
} Test pulse signals are always buffered for 20 ms
} Common second shutdown route, tested regularly
} Cyclical output tests
} Tests for shorts between the outputs
4.5
4.6