Peripheral Fault - Festo CPX-FB6 Electronic Manual

3. Diagnosis and error treatment
3.3.4 Peripheral fault (PF)
3−18
If a fault is recognized by the valve terminal, a peripheral fault
will be triggered as a common fault message, transmitted to
the module and displayed there. This common fault message
can be classsified more accurately either with the status bits
or the I/O diagnostic interface.
The causes of peripheral faults can be all the fault messages
of the CPX terminal which have also been entered in the
status bits e.g.:
Voltage of the valves and electric outputs below the
tolerance.
Voltage of the valves and electric outputs switched off
(e.g. after EMERGENCY STOP).
Short circuit in power supply to inputs/sensors.
Short circuit or overload at digital outputs.
Further specific fault messages of the CPX terminal.
Further information on fault messages of the CPX terminal
can be found in the CPX system manual.
Festo P.BE−CPX−FB6−EN en 0402b