Festo CPX-FB33 Manual page 89

3. Diagnosis
SF (System Failure) system fault
LED (red) Sequence
ON
OFF
LED is off
ON
OFF
LED flashes
once
ON
OFF
LED flashes
twice
ON
OFF
LED flashes
three times
1)
The system error LED flashes depending on the class of error which has occurred.
Error class 1 (minor error):
Error class 2 (error):
Error class 3 (serious error): flash three times, pause
Tab. 3/5: Fault diagnostics using the LED SF
Festo P.BE−CPX−PN IO−EN en 0710NH
1)
Status
No fault
Minor error or information
(error class 1)
Error (error class 2)
Serious error
(error class 3)
one flash, pause
flash twice, pause
Meaning / error handling
See description of the error numbers
in the CPX system manual
(P.BE−CPX−SYS−...)
See description of the error numbers
in the CPX system manual
(P.BE−CPX−SYS−...)
3−9