Pilz PSSu E F BSW - Manual (Page 12)

Function description
Operating Manual PSSu E F BSW(-T)
21372-EN-05
12
Function description
Module features
Integrated protection mechanisms
The module has the following protection mechanisms:
} Periphery supply
– Voltage monitoring (exceeding upper/lower limit)
} 2 relay contacts connected in series to feed the periphery supply: +24 V DC
} 1 relay contact to feed the periphery supply: 0 V DC
} Thermistor monitor
The module provides the following diagnostic data:
} Start-up error
} Configuration error
} FS communication error
} Bus termination error
} Temperatur error: Too warm
} Temperatur error: Too hot
} Relay control error
} Relay error
} Block switching output error
} Overvoltage error
} Undervoltage error
} Error in the overvoltage protection diodes
Function description
Module supply
} The module supply provides the module with voltage.
Periphery supply
} Refreshing the periphery supply: The relevant base module interrupts the connection to
the incoming (left-hand) periphery supply and C-rail on the module bus.
} Supply to the module bus:
– Periphery supply for subsequent modules (right-hand side)
– C-rail supply for subsequent modules (right-hand side)
} The module does not automatically switch off the periphery supply in the case of under
or overvoltage. However, there will be a visual signal (LED “24 V”) and a message will
be sent to the head module (entry in the error stack).
Block switch function
} The module is used to switch off the periphery supply safely on standard modules that
are arranged in blocks.
} Each output block requires its own block switching module.
4
4.1
4.1.1
4.1.2