Festo — VABA-S6-1-AP — 2022-06
Malfunctions
11
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
Module diagnostics active
Degree of severity "Information"
e.g. switching off load supply PL
–
flashing red
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 load supply PL
Take appropriate remedial action,
e.g. check load supply PL.
fast red
flashing
Module ramp-up not yet completed.
System communication not yet initial-
ised.
–
fast green
flashing
Module identification (service function) –
Tab. 10: LED module diagnostics [MD]
