3. Diagnosis
3−7
Festo P.BE−CPX−FB13−EN en 0811c
SF (System Fail) system fault
LED (red) Process Status Meaning / error handling
LED is off
ON
OFF
No error
LED flashes
once
ON
OFF
Simple fault/information
(error class 1)
See description of fault numbers in
the CPX system manual
LED flashes
twice
ON
OFF
Error (error class 2)
LED flashes
three times
ON
OFF
Serious fault (error class 3)
The system error LED flashes depending on the class of error which has occurred.
Error class 1 (minor error): 1 * flash, pause
Error class 2 (error): 2 * flash, pause
Error class 3 (serious error): 3 * flash, pause
Tab.3/4: Fault diagnostics using the SF LED
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