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Festo — CPX-AP-A-8DO-M12-5P — 2022-07
Diagnostics and fault clearance
9.2
LED displays
Module diagnostics [MD]
LED (red,
green)
Meaning
Remedy
off
Logic supply PS not available.
Check connection of logic supply PS.
green light
Module diagnostics not active
–
flashing green
0.5 Hz
Module diagnostics active
Degree of severity "Information"
e.g. switching off load supply PL
–
flashing red
0.5 Hz
Module diagnostics active
Degree of severity "Warning"
e.g. parameterisation error
Take appropriate remedial action,
e.g. check parameterisation.
red light
Module diagnostics active
Degree of severity "Error"
e.g. undervoltage in logic supply PS
Take appropriate remedial action,
e.g. check logic supply PS.
flashing red
2 Hz
Module ramp-up not yet completed.
System communication not yet initial-
ised.
–
flashing green
2 Hz
Module identification (service function)
–
Tab. 8: LED module diagnostics [MD]
