Festo IIFB-02- Series, Manual

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Possible LED displays indicating the operating
status of the valve terminal/valve sensor terminal
are listed below.
LEDs Operating status Error treatment
Green on
Red on
normal None
Red off 24 V operating voltage for
electronic components not applied
or hardware error Check operating voltage
Green off No communication on RIO Check operating voltage,
configuration of RIO slave
and correct if necessarry
Green blinking Programmable controller has
issued a RESET command or
programmable controller not in
RUN mode Check program and correct if
necessary. Set to RUN mode
Fig. 6/2: LED display – operating status
VIFB8 – 02 6. Diagnosis/error treatment
6-4
9706